[PULL 00/46] (mostly) target/i386 and meson changes for 2023-12-31

[PULL 00/46] (mostly) target/i386 and meson changes for 2023-12-31

[Paolo Bonzini]

The following changes since commit 191710c221f65b1542f6ea7fa4d30dde6e134fd7:

  Merge tag 'pull-request-2023-12-20' of https://gitlab.com/thuth/qemu into staging (2023-12-20 09:40:16 -0500)

are available in the Git repository at:

  https://gitlab.com/bonzini/qemu.git tags/for-upstream

for you to fetch changes up to f705c1f25d9a075534f8279048082af4ce2066bf:

  meson.build: report graphics backends separately (2023-12-31 09:11:29 +0100)

----------------------------------------------------------------
* configure: use a native non-cross compiler for linux-user
* meson: cleanups
* target/i386: miscellaneous cleanups and optimizations
* target/i386: implement CMPccXADD
* target/i386: the sgx_epc_get_section stub is reachable
* esp: check for NULL result from scsi_device_find()

----------------------------------------------------------------
Alex Bennée (1):
      meson.build: report graphics backends separately

Alexandra Diupina (1):
      esp: check for NULL result from scsi_device_find()

Paolo Bonzini (44):
      configure: use a native non-cross compiler for linux-user
      target/i386: optimize computation of JL and JLE from flags
      target/i386: speedup JO/SETO after MUL or IMUL
      target/i386: remove unnecessary arguments from raise_interrupt
      target/i386: remove unnecessary truncations
      target/i386: clean up cpu_cc_compute_all
      target/i386: document more deviations from the manual
      target/i386: reimplement check for validity of LOCK prefix
      target/i386: avoid trunc and ext for MULX and RORX
      target/i386: rename zext0/zext2 and make them closer to the manual
      target/i386: add X86_SPECIALs for MOVSX and MOVZX
      target/i386: do not decode string source/destination into decode->mem
      target/i386: do not clobber A0 in POP translation
      target/i386: do not clobber T0 on string operations
      target/i386: split eflags computation out of gen_compute_eflags
      target/i386: do not use s->tmp4 for push
      target/i386: do not use s->tmp0 for jumps on ECX ==/!= 0
      target/i386: prepare for implementation of STOS/SCAS in new decoder
      target/i386: move operand load and writeback out of gen_cmovcc1
      target/i386: adjust decoding of J operand
      target/i386: introduce flags writeback mechanism
      target/i386: implement CMPccXADD
      target/i386: the sgx_epc_get_section stub is reachable
      meson: fix type of "relocatable" option
      meson: remove unused variable
      meson: use version_compare() to compare version
      Makefile: clean qemu-iotests output
      configure: remove unnecessary subshell
      configure: unify again the case arms in probe_target_compiler
      meson: add more sections to main meson.build
      meson: move program checks together
      meson: move option validation together
      meson: move accelerator dependency checks together
      meson: keep subprojects together
      meson: move CFI detection code with other compiler flags
      meson: move config-host.h definitions together
      meson: move subdirs to "Collect sources" section
      meson: always probe u2f and canokey if the option is enabled
      meson: remove OS definitions from config_targetos
      meson: remove CONFIG_POSIX and CONFIG_WIN32 from config_targetos
      meson: remove config_targetos
      meson: remove CONFIG_ALL
      meson: rename config_all
      configure, meson: rename targetos to host_os

 Makefile                             |   1 +
 accel/tcg/meson.build                |   4 +-
 backends/meson.build                 |  10 +-
 block/meson.build                    |  11 +-
 bsd-user/meson.build                 |   2 +-
 chardev/meson.build                  |  28 +-
 configure                            | 159 +++---
 contrib/ivshmem-client/meson.build   |   2 +-
 contrib/ivshmem-server/meson.build   |   2 +-
 contrib/vhost-user-blk/meson.build   |   2 +-
 contrib/vhost-user-input/meson.build |   2 +-
 contrib/vhost-user-scsi/meson.build  |   2 +-
 docs/devel/build-system.rst          |  15 -
 docs/devel/kconfig.rst               |   2 +-
 fsdev/meson.build                    |   6 +-
 gdbstub/meson.build                  |   4 +-
 hw/9pfs/meson.build                  |   7 +-
 hw/acpi/meson.build                  |   5 -
 hw/cxl/meson.build                   |   2 -
 hw/display/meson.build               |   8 +-
 hw/i386/sgx-stub.c                   |   2 +-
 hw/mem/meson.build                   |   1 -
 hw/mips/meson.build                  |   2 +-
 hw/net/meson.build                   |   2 -
 hw/pci-bridge/meson.build            |   2 -
 hw/pci/meson.build                   |   1 -
 hw/ppc/meson.build                   |   8 +-
 hw/remote/meson.build                |   1 -
 hw/scsi/esp.c                        |   9 +
 hw/smbios/meson.build                |   5 -
 hw/usb/meson.build                   |   8 +-
 hw/virtio/meson.build                |   2 -
 meson.build                          | 943 +++++++++++++++++------------------
 meson_options.txt                    |   2 +-
 net/can/meson.build                  |   4 +-
 net/meson.build                      |  10 +-
 plugins/meson.build                  |   4 +-
 qga/meson.build                      |  50 +-
 scsi/meson.build                     |   8 +-
 storage-daemon/meson.build           |   2 +-
 system/meson.build                   |   4 +-
 target/arm/meson.build               |   2 +-
 target/i386/cpu.c                    |   2 +-
 target/i386/cpu.h                    |   5 +-
 target/i386/tcg/cc_helper.c          |   6 +-
 target/i386/tcg/decode-new.c.inc     | 152 ++++--
 target/i386/tcg/decode-new.h         |  29 +-
 target/i386/tcg/emit.c.inc           | 224 +++++++--
 target/i386/tcg/excp_helper.c        |   7 +-
 target/i386/tcg/fpu_helper.c         |  10 +-
 target/i386/tcg/helper-tcg.h         |   3 +-
 target/i386/tcg/int_helper.c         |   8 +-
 target/i386/tcg/misc_helper.c        |   4 +-
 target/i386/tcg/seg_helper.c         |   8 +-
 target/i386/tcg/translate.c          | 160 +++---
 target/mips/meson.build              |   2 +-
 tcg/meson.build                      |   2 +-
 tests/bench/meson.build              |   6 +-
 tests/fp/meson.build                 |   4 +-
 tests/meson.build                    |   4 +-
 tests/plugin/meson.build             |   2 +-
 tests/qemu-iotests/meson.build       |   2 +-
 tests/qtest/meson.build              |  20 +-
 tests/tcg/i386/Makefile.target       |   2 +-
 tests/tcg/i386/test-flags.c          |  37 ++
 tests/unit/meson.build               |   8 +-
 ui/dbus-display1.xml                 |  10 +-
 ui/meson.build                       |  17 +-
 util/meson.build                     |  58 ++-
 69 files changed, 1188 insertions(+), 950 deletions(-)
 create mode 100644 tests/tcg/i386/test-flags.c
-- 
2.43.0

[PULL 01/46] configure: use a native non-cross compiler for linux-user

[Paolo Bonzini]

Commit c2118e9e1ab ("configure: don't try a "native" cross for linux-user",
2023-11-23) sought to avoid issues with using the native compiler with a
cross-endian or cross-bitness setup.  However, in doing so it ended up
requiring a cross compiler setup (and most likely a slow compiler setup)
even when building TCG tests that are native to the host architecture.
Always allow the host compiler in that case.

Cc: qemu-stable@nongnu.org
Fixes: c2118e9e1ab ("configure: don't try a "native" cross for linux-user", 2023-11-23)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index bdda912f362..d7e0926ff19 100755
--- a/configure
+++ b/configure
@@ -1387,8 +1387,8 @@ probe_target_compiler() {
   done
 
   try=cross
-  # For softmmu/roms we might be able to use the host compiler
-  if [ "${1%softmmu}" != "$1" ]; then
+  # For softmmu/roms also look for a bi-endian or multilib-enabled host compiler
+  if [ "${1%softmmu}" != "$1" ] || test "$target_arch" = "$cpu"; then
       case "$target_arch:$cpu" in
         aarch64_be:aarch64 | \
         armeb:arm | \
-- 
2.43.0

[PULL 02/46] target/i386: optimize computation of JL and JLE from flags

[Paolo Bonzini]

Take advantage of the fact that there can be no 1 bits between SF and OF.
If they were adjacent, you could sum SF and get a carry only if SF was
already set.  Then the value of OF in the sum is the XOR of OF itself,
the carry (which is SF) and 0 (the value of the OF bit in the addend):
this is OF^SF exactly.

Because OF and SF are not adjacent, just place more 1 bits to the
left so that the carry propagates, which means summing CC_O - CC_S.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 037bc47e7c2..8fb80011a22 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -1126,10 +1126,9 @@ static CCPrepare gen_prepare_cc(DisasContext *s, int b, TCGv reg)
             if (reg == cpu_cc_src) {
                 reg = s->tmp0;
             }
-            tcg_gen_shri_tl(reg, cpu_cc_src, 4); /* CC_O -> CC_S */
-            tcg_gen_xor_tl(reg, reg, cpu_cc_src);
+            tcg_gen_addi_tl(reg, cpu_cc_src, CC_O - CC_S);
             cc = (CCPrepare) { .cond = TCG_COND_NE, .reg = reg,
-                               .mask = CC_S };
+                               .mask = CC_O };
             break;
         default:
         case JCC_LE:
@@ -1137,10 +1136,9 @@ static CCPrepare gen_prepare_cc(DisasContext *s, int b, TCGv reg)
             if (reg == cpu_cc_src) {
                 reg = s->tmp0;
             }
-            tcg_gen_shri_tl(reg, cpu_cc_src, 4); /* CC_O -> CC_S */
-            tcg_gen_xor_tl(reg, reg, cpu_cc_src);
+            tcg_gen_addi_tl(reg, cpu_cc_src, CC_O - CC_S);
             cc = (CCPrepare) { .cond = TCG_COND_NE, .reg = reg,
-                               .mask = CC_S | CC_Z };
+                               .mask = CC_O | CC_Z };
             break;
         }
         break;
-- 
2.43.0

[PULL 03/46] target/i386: speedup JO/SETO after MUL or IMUL

[Paolo Bonzini]

OF is equal to the carry flag, so use the same CCPrepare.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 8fb80011a22..a16eb8d4008 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -1020,6 +1020,9 @@ static CCPrepare gen_prepare_eflags_o(DisasContext *s, TCGv reg)
     case CC_OP_CLR:
     case CC_OP_POPCNT:
         return (CCPrepare) { .cond = TCG_COND_NEVER, .mask = -1 };
+    case CC_OP_MULB ... CC_OP_MULQ:
+        return (CCPrepare) { .cond = TCG_COND_NE,
+                             .reg = cpu_cc_src, .mask = -1 };
     default:
         gen_compute_eflags(s);
         return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
-- 
2.43.0

[PULL 04/46] target/i386: remove unnecessary arguments from raise_interrupt

[Paolo Bonzini]

is_int is always 1, and error_code is always zero.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/excp_helper.c | 7 +++----
 target/i386/tcg/helper-tcg.h  | 3 +--
 target/i386/tcg/misc_helper.c | 2 +-
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/target/i386/tcg/excp_helper.c b/target/i386/tcg/excp_helper.c
index 7c3c8dc7fe8..65e37ae2a0c 100644
--- a/target/i386/tcg/excp_helper.c
+++ b/target/i386/tcg/excp_helper.c
@@ -28,7 +28,7 @@
 G_NORETURN void helper_raise_interrupt(CPUX86State *env, int intno,
                                           int next_eip_addend)
 {
-    raise_interrupt(env, intno, 1, 0, next_eip_addend);
+    raise_interrupt(env, intno, next_eip_addend);
 }
 
 G_NORETURN void helper_raise_exception(CPUX86State *env, int exception_index)
@@ -112,10 +112,9 @@ void raise_interrupt2(CPUX86State *env, int intno,
 
 /* shortcuts to generate exceptions */
 
-G_NORETURN void raise_interrupt(CPUX86State *env, int intno, int is_int,
-                                int error_code, int next_eip_addend)
+G_NORETURN void raise_interrupt(CPUX86State *env, int intno, int next_eip_addend)
 {
-    raise_interrupt2(env, intno, is_int, error_code, next_eip_addend, 0);
+    raise_interrupt2(env, intno, 1, 0, next_eip_addend, 0);
 }
 
 G_NORETURN void raise_exception_err(CPUX86State *env, int exception_index,
diff --git a/target/i386/tcg/helper-tcg.h b/target/i386/tcg/helper-tcg.h
index cd1723389ad..ce34b737bb0 100644
--- a/target/i386/tcg/helper-tcg.h
+++ b/target/i386/tcg/helper-tcg.h
@@ -65,8 +65,7 @@ G_NORETURN void raise_exception_err(CPUX86State *env, int exception_index,
                                     int error_code);
 G_NORETURN void raise_exception_err_ra(CPUX86State *env, int exception_index,
                                        int error_code, uintptr_t retaddr);
-G_NORETURN void raise_interrupt(CPUX86State *nenv, int intno, int is_int,
-                                int error_code, int next_eip_addend);
+G_NORETURN void raise_interrupt(CPUX86State *nenv, int intno, int next_eip_addend);
 G_NORETURN void handle_unaligned_access(CPUX86State *env, vaddr vaddr,
                                         MMUAccessType access_type,
                                         uintptr_t retaddr);
diff --git a/target/i386/tcg/misc_helper.c b/target/i386/tcg/misc_helper.c
index babff061864..66b332a83c1 100644
--- a/target/i386/tcg/misc_helper.c
+++ b/target/i386/tcg/misc_helper.c
@@ -43,7 +43,7 @@ void helper_into(CPUX86State *env, int next_eip_addend)
 
     eflags = cpu_cc_compute_all(env, CC_OP);
     if (eflags & CC_O) {
-        raise_interrupt(env, EXCP04_INTO, 1, 0, next_eip_addend);
+        raise_interrupt(env, EXCP04_INTO, next_eip_addend);
     }
 }
 
-- 
2.43.0

[PULL 05/46] target/i386: remove unnecessary truncations

[Paolo Bonzini]

gen_lea_v_seg (called by gen_add_A0_ds_seg) already zeroes any
bits of s->A0 beyond s->aflag.  It does so before summing the
segment base and, if not in 64-bit mode, also after summing it.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/emit.c.inc  | 4 +---
 target/i386/tcg/translate.c | 2 --
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index 82da5488d47..d444d83e534 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -1242,9 +1242,7 @@ static void gen_LDMXCSR(DisasContext *s, CPUX86State *env, X86DecodedInsn *decod
 
 static void gen_MASKMOV(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
-    tcg_gen_mov_tl(s->A0, cpu_regs[R_EDI]);
-    gen_extu(s->aflag, s->A0);
-    gen_add_A0_ds_seg(s);
+    gen_lea_v_seg(s, s->aflag, cpu_regs[R_EDI], R_DS, s->override);
 
     if (s->prefix & PREFIX_DATA) {
         gen_helper_maskmov_xmm(tcg_env, OP_PTR1, OP_PTR2, s->A0);
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index a16eb8d4008..73b83e07e23 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -4183,7 +4183,6 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         tcg_gen_mov_tl(s->A0, cpu_regs[R_EBX]);
         tcg_gen_ext8u_tl(s->T0, cpu_regs[R_EAX]);
         tcg_gen_add_tl(s->A0, s->A0, s->T0);
-        gen_extu(s->aflag, s->A0);
         gen_add_A0_ds_seg(s);
         gen_op_ld_v(s, MO_8, s->T0, s->A0);
         gen_op_mov_reg_v(s, MO_8, R_EAX, s->T0);
@@ -5835,7 +5834,6 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
             gen_update_cc_op(s);
             gen_update_eip_cur(s);
             tcg_gen_mov_tl(s->A0, cpu_regs[R_EAX]);
-            gen_extu(s->aflag, s->A0);
             gen_add_A0_ds_seg(s);
             gen_helper_monitor(tcg_env, s->A0);
             break;
-- 
2.43.0

[PULL 06/46] target/i386: clean up cpu_cc_compute_all

[Paolo Bonzini]

cpu_cc_compute_all() has an argument that is always equal to CC_OP for historical
reasons (dating back to commit a7812ae4123, "TCG variable type checking.", 2008-11-17,
which added the argument to helper_cc_compute_all).  It does not make sense for the
argument to have any other value, so remove it and clean up some lines that are not
too long anymore.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.h             |  4 ++--
 target/i386/tcg/cc_helper.c   |  6 +++---
 target/i386/tcg/fpu_helper.c  | 10 ++++------
 target/i386/tcg/int_helper.c  |  8 ++++----
 target/i386/tcg/misc_helper.c |  2 +-
 target/i386/tcg/seg_helper.c  |  8 ++++----
 6 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index ef987f344cf..ecdd4518c64 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -2344,13 +2344,13 @@ void cpu_x86_inject_mce(Monitor *mon, X86CPU *cpu, int bank,
                         uint64_t status, uint64_t mcg_status, uint64_t addr,
                         uint64_t misc, int flags);
 
-uint32_t cpu_cc_compute_all(CPUX86State *env1, int op);
+uint32_t cpu_cc_compute_all(CPUX86State *env1);
 
 static inline uint32_t cpu_compute_eflags(CPUX86State *env)
 {
     uint32_t eflags = env->eflags;
     if (tcg_enabled()) {
-        eflags |= cpu_cc_compute_all(env, CC_OP) | (env->df & DF_MASK);
+        eflags |= cpu_cc_compute_all(env) | (env->df & DF_MASK);
     }
     return eflags;
 }
diff --git a/target/i386/tcg/cc_helper.c b/target/i386/tcg/cc_helper.c
index c310bd842f1..f76e9cb8cfb 100644
--- a/target/i386/tcg/cc_helper.c
+++ b/target/i386/tcg/cc_helper.c
@@ -220,9 +220,9 @@ target_ulong helper_cc_compute_all(target_ulong dst, target_ulong src1,
     }
 }
 
-uint32_t cpu_cc_compute_all(CPUX86State *env, int op)
+uint32_t cpu_cc_compute_all(CPUX86State *env)
 {
-    return helper_cc_compute_all(CC_DST, CC_SRC, CC_SRC2, op);
+    return helper_cc_compute_all(CC_DST, CC_SRC, CC_SRC2, CC_OP);
 }
 
 target_ulong helper_cc_compute_c(target_ulong dst, target_ulong src1,
@@ -335,7 +335,7 @@ target_ulong helper_read_eflags(CPUX86State *env)
 {
     uint32_t eflags;
 
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     eflags |= (env->df & DF_MASK);
     eflags |= env->eflags & ~(VM_MASK | RF_MASK);
     return eflags;
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c
index 4430d3d380c..4b965a5d6c4 100644
--- a/target/i386/tcg/fpu_helper.c
+++ b/target/i386/tcg/fpu_helper.c
@@ -484,9 +484,8 @@ void helper_fcomi_ST0_FT0(CPUX86State *env)
     FloatRelation ret;
 
     ret = floatx80_compare(ST0, FT0, &env->fp_status);
-    eflags = cpu_cc_compute_all(env, CC_OP);
-    eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
-    CC_SRC = eflags;
+    eflags = cpu_cc_compute_all(env) & ~(CC_Z | CC_P | CC_C);
+    CC_SRC = eflags | fcomi_ccval[ret + 1];
     merge_exception_flags(env, old_flags);
 }
 
@@ -497,9 +496,8 @@ void helper_fucomi_ST0_FT0(CPUX86State *env)
     FloatRelation ret;
 
     ret = floatx80_compare_quiet(ST0, FT0, &env->fp_status);
-    eflags = cpu_cc_compute_all(env, CC_OP);
-    eflags = (eflags & ~(CC_Z | CC_P | CC_C)) | fcomi_ccval[ret + 1];
-    CC_SRC = eflags;
+    eflags = cpu_cc_compute_all(env) & ~(CC_Z | CC_P | CC_C);
+    CC_SRC = eflags | fcomi_ccval[ret + 1];
     merge_exception_flags(env, old_flags);
 }
 
diff --git a/target/i386/tcg/int_helper.c b/target/i386/tcg/int_helper.c
index 05418f181f1..ab85dc55400 100644
--- a/target/i386/tcg/int_helper.c
+++ b/target/i386/tcg/int_helper.c
@@ -190,7 +190,7 @@ void helper_aaa(CPUX86State *env)
     int al, ah, af;
     int eflags;
 
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     af = eflags & CC_A;
     al = env->regs[R_EAX] & 0xff;
     ah = (env->regs[R_EAX] >> 8) & 0xff;
@@ -214,7 +214,7 @@ void helper_aas(CPUX86State *env)
     int al, ah, af;
     int eflags;
 
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     af = eflags & CC_A;
     al = env->regs[R_EAX] & 0xff;
     ah = (env->regs[R_EAX] >> 8) & 0xff;
@@ -237,7 +237,7 @@ void helper_daa(CPUX86State *env)
     int old_al, al, af, cf;
     int eflags;
 
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     cf = eflags & CC_C;
     af = eflags & CC_A;
     old_al = al = env->regs[R_EAX] & 0xff;
@@ -264,7 +264,7 @@ void helper_das(CPUX86State *env)
     int al, al1, af, cf;
     int eflags;
 
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     cf = eflags & CC_C;
     af = eflags & CC_A;
     al = env->regs[R_EAX] & 0xff;
diff --git a/target/i386/tcg/misc_helper.c b/target/i386/tcg/misc_helper.c
index 66b332a83c1..b0f0f7b893b 100644
--- a/target/i386/tcg/misc_helper.c
+++ b/target/i386/tcg/misc_helper.c
@@ -41,7 +41,7 @@ void helper_into(CPUX86State *env, int next_eip_addend)
 {
     int eflags;
 
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     if (eflags & CC_O) {
         raise_interrupt(env, EXCP04_INTO, next_eip_addend);
     }
diff --git a/target/i386/tcg/seg_helper.c b/target/i386/tcg/seg_helper.c
index eb29a1fd4e7..34ccabd8ce3 100644
--- a/target/i386/tcg/seg_helper.c
+++ b/target/i386/tcg/seg_helper.c
@@ -2230,7 +2230,7 @@ target_ulong helper_lsl(CPUX86State *env, target_ulong selector1)
     int rpl, dpl, cpl, type;
 
     selector = selector1 & 0xffff;
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     if ((selector & 0xfffc) == 0) {
         goto fail;
     }
@@ -2277,7 +2277,7 @@ target_ulong helper_lar(CPUX86State *env, target_ulong selector1)
     int rpl, dpl, cpl, type;
 
     selector = selector1 & 0xffff;
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     if ((selector & 0xfffc) == 0) {
         goto fail;
     }
@@ -2326,7 +2326,7 @@ void helper_verr(CPUX86State *env, target_ulong selector1)
     int rpl, dpl, cpl;
 
     selector = selector1 & 0xffff;
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     if ((selector & 0xfffc) == 0) {
         goto fail;
     }
@@ -2364,7 +2364,7 @@ void helper_verw(CPUX86State *env, target_ulong selector1)
     int rpl, dpl, cpl;
 
     selector = selector1 & 0xffff;
-    eflags = cpu_cc_compute_all(env, CC_OP);
+    eflags = cpu_cc_compute_all(env);
     if ((selector & 0xfffc) == 0) {
         goto fail;
     }
-- 
2.43.0

[PULL 07/46] target/i386: document more deviations from the manual

[Paolo Bonzini]

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.c.inc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 2bdbb1bba0f..232c6a45c96 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -26,6 +26,13 @@
  * size (X86_SIZE_*) codes used in the manual.  There are a few differences
  * though.
  *
+ * Operand sizes
+ * -------------
+ *
+ * The manual lists d64 ("cannot encode 32-bit size in 64-bit mode") and f64
+ * ("cannot encode 16-bit or 32-bit size in 64-bit mode") as modifiers of the
+ * "v" or "z" sizes.  The decoder simply makes them separate operand sizes.
+ *
  * Vector operands
  * ---------------
  *
@@ -44,6 +51,11 @@
  * if the difference is expressed via prefixes.  Individual instructions
  * are separated by prefix in the generator functions.
  *
+ * There is a custom size "xh" used to address half of a SSE/AVX operand.
+ * This points to a 64-bit operand for SSE operations, 128-bit operand
+ * for 256-bit AVX operands, etc.  It is used for conversion operations
+ * such as VCVTPH2PS or VCVTSS2SD.
+ *
  * There are a couple cases in which instructions (e.g. MOVD) write the
  * whole XMM or MM register but are established incorrectly in the manual
  * as "d" or "q".  These have to be fixed for the decoder to work correctly.
-- 
2.43.0

[PULL 08/46] target/i386: reimplement check for validity of LOCK prefix

[Paolo Bonzini]

The previous check erroneously allowed CMP to be modified with LOCK.
Instead, tag explicitly the instructions that do support LOCK.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.c.inc | 17 ++++++++++-------
 target/i386/tcg/decode-new.h     |  3 +++
 target/i386/tcg/emit.c.inc       |  5 -----
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 232c6a45c96..5eb2e9d0224 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -151,6 +151,7 @@
 
 #define cpuid(feat) .cpuid = X86_FEAT_##feat,
 #define xchg .special = X86_SPECIAL_Locked,
+#define lock .special = X86_SPECIAL_HasLock,
 #define mmx .special = X86_SPECIAL_MMX,
 #define zext0 .special = X86_SPECIAL_ZExtOp0,
 #define zext2 .special = X86_SPECIAL_ZExtOp2,
@@ -1103,10 +1104,6 @@ static int decode_modrm(DisasContext *s, CPUX86State *env, X86DecodedInsn *decod
 {
     int modrm = get_modrm(s, env);
     if ((modrm >> 6) == 3) {
-        if (s->prefix & PREFIX_LOCK) {
-            decode->e.gen = gen_illegal;
-            return 0xff;
-        }
         op->n = (modrm & 7);
         if (type != X86_TYPE_Q && type != X86_TYPE_N) {
             op->n |= REX_B(s);
@@ -1881,6 +1878,9 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
         if (decode.op[0].has_ea) {
             s->prefix |= PREFIX_LOCK;
         }
+        decode.e.special = X86_SPECIAL_HasLock;
+        /* fallthrough */
+    case X86_SPECIAL_HasLock:
         break;
 
     case X86_SPECIAL_ZExtOp0:
@@ -1909,6 +1909,12 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
         break;
     }
 
+    if (s->prefix & PREFIX_LOCK) {
+        if (decode.e.special != X86_SPECIAL_HasLock || !decode.op[0].has_ea) {
+            goto illegal_op;
+        }
+    }
+
     if (!validate_vex(s, &decode)) {
         return;
     }
@@ -1952,9 +1958,6 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
         gen_load_ea(s, &decode.mem, decode.e.vex_class == 12);
     }
     if (s->prefix & PREFIX_LOCK) {
-        if (decode.op[0].unit != X86_OP_INT || !decode.op[0].has_ea) {
-            goto illegal_op;
-        }
         gen_load(s, &decode, 2, s->T1);
         decode.e.gen(s, env, &decode);
     } else {
diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h
index e6c904a3192..611bfddd957 100644
--- a/target/i386/tcg/decode-new.h
+++ b/target/i386/tcg/decode-new.h
@@ -158,6 +158,9 @@ typedef enum X86InsnCheck {
 typedef enum X86InsnSpecial {
     X86_SPECIAL_None,
 
+    /* Accepts LOCK prefix; LOCKed operations do not load or writeback operand 0 */
+    X86_SPECIAL_HasLock,
+
     /* Always locked if it has a memory operand (XCHG) */
     X86_SPECIAL_Locked,
 
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index d444d83e534..98c4c9569ef 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -55,11 +55,6 @@ static void gen_NM_exception(DisasContext *s)
     gen_exception(s, EXCP07_PREX);
 }
 
-static void gen_illegal(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
-{
-    gen_illegal_opcode(s);
-}
-
 static void gen_load_ea(DisasContext *s, AddressParts *mem, bool is_vsib)
 {
     TCGv ea = gen_lea_modrm_1(s, *mem, is_vsib);
-- 
2.43.0

[PULL 09/46] target/i386: avoid trunc and ext for MULX and RORX

[Paolo Bonzini]

Use _tl operations for 32-bit operands on 32-bit targets, and only go
through trunc and extu ops for 64-bit targets.  While the trunc/ext
ops should be pretty much free after optimization, the optimizer also
does not like having the same temporary used in multiple EBBs.
Therefore it is nicer to not use tmpN* unless necessary.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/emit.c.inc | 37 +++++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index 98c4c9569ef..f5e44117eab 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -1348,7 +1348,8 @@ static void gen_MULX(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 
     /* low part of result in VEX.vvvv, high in MODRM */
     switch (ot) {
-    default:
+    case MO_32:
+#ifdef TARGET_X86_64
         tcg_gen_trunc_tl_i32(s->tmp2_i32, s->T0);
         tcg_gen_trunc_tl_i32(s->tmp3_i32, s->T1);
         tcg_gen_mulu2_i32(s->tmp2_i32, s->tmp3_i32,
@@ -1356,13 +1357,15 @@ static void gen_MULX(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
         tcg_gen_extu_i32_tl(cpu_regs[s->vex_v], s->tmp2_i32);
         tcg_gen_extu_i32_tl(s->T0, s->tmp3_i32);
         break;
-#ifdef TARGET_X86_64
-    case MO_64:
-        tcg_gen_mulu2_i64(cpu_regs[s->vex_v], s->T0, s->T0, s->T1);
-        break;
-#endif
-    }
 
+    case MO_64:
+#endif
+        tcg_gen_mulu2_tl(cpu_regs[s->vex_v], s->T0, s->T0, s->T1);
+        break;
+
+    default:
+        g_assert_not_reached();
+    }
 }
 
 static void gen_PALIGNR(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
@@ -1765,14 +1768,24 @@ static void gen_PSLLDQ_i(DisasContext *s, CPUX86State *env, X86DecodedInsn *deco
 static void gen_RORX(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     MemOp ot = decode->op[0].ot;
-    int b = decode->immediate;
+    int mask = ot == MO_64 ? 63 : 31;
+    int b = decode->immediate & mask;
 
-    if (ot == MO_64) {
-        tcg_gen_rotri_tl(s->T0, s->T0, b & 63);
-    } else {
+    switch (ot) {
+    case MO_32:
+#ifdef TARGET_X86_64
         tcg_gen_trunc_tl_i32(s->tmp2_i32, s->T0);
-        tcg_gen_rotri_i32(s->tmp2_i32, s->tmp2_i32, b & 31);
+        tcg_gen_rotri_i32(s->tmp2_i32, s->tmp2_i32, b);
         tcg_gen_extu_i32_tl(s->T0, s->tmp2_i32);
+        break;
+
+    case MO_64:
+#endif
+        tcg_gen_rotri_tl(s->T0, s->T0, b);
+        break;
+
+    default:
+        g_assert_not_reached();
     }
 }
 
-- 
2.43.0

[PULL 10/46] target/i386: rename zext0/zext2 and make them closer to the manual

[Paolo Bonzini]

X86_SPECIAL_ZExtOp0 and X86_SPECIAL_ZExtOp2 are poorly named; they are a hack
that is needed by scalar insertion and extraction instructions, and not really
related to zero extension: for PEXTR the zero extension is done by the generation
functions, for PINSR the high bits are not used at all and in fact are *not*
filled with zeroes when loaded into s->T1.

Rename the values to match the effect described in the manual, and explain
better in the comments.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.c.inc | 16 ++++++++--------
 target/i386/tcg/decode-new.h     | 17 +++++++++++++----
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 5eb2e9d0224..00fdb243857 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -153,8 +153,8 @@
 #define xchg .special = X86_SPECIAL_Locked,
 #define lock .special = X86_SPECIAL_HasLock,
 #define mmx .special = X86_SPECIAL_MMX,
-#define zext0 .special = X86_SPECIAL_ZExtOp0,
-#define zext2 .special = X86_SPECIAL_ZExtOp2,
+#define op0_Rd .special = X86_SPECIAL_Op0_Rd,
+#define op2_Ry .special = X86_SPECIAL_Op2_Ry,
 #define avx_movx .special = X86_SPECIAL_AVXExtMov,
 
 #define vex1 .vex_class = 1,
@@ -632,13 +632,13 @@ static const X86OpEntry opcodes_0F3A[256] = {
     [0x05] = X86_OP_ENTRY3(VPERMILPD_i, V,x,  W,x,  I,b,  vex6 chk(W0) cpuid(AVX) p_66),
     [0x06] = X86_OP_ENTRY4(VPERM2x128,  V,qq, H,qq, W,qq, vex6 chk(W0) cpuid(AVX) p_66),
 
-    [0x14] = X86_OP_ENTRY3(PEXTRB,     E,b,  V,dq, I,b,  vex5 cpuid(SSE41) zext0 p_66),
-    [0x15] = X86_OP_ENTRY3(PEXTRW,     E,w,  V,dq, I,b,  vex5 cpuid(SSE41) zext0 p_66),
+    [0x14] = X86_OP_ENTRY3(PEXTRB,     E,b,  V,dq, I,b,  vex5 cpuid(SSE41) op0_Rd p_66),
+    [0x15] = X86_OP_ENTRY3(PEXTRW,     E,w,  V,dq, I,b,  vex5 cpuid(SSE41) op0_Rd p_66),
     [0x16] = X86_OP_ENTRY3(PEXTR,      E,y,  V,dq, I,b,  vex5 cpuid(SSE41) p_66),
     [0x17] = X86_OP_ENTRY3(VEXTRACTPS, E,d,  V,dq, I,b,  vex5 cpuid(SSE41) p_66),
     [0x1d] = X86_OP_ENTRY3(VCVTPS2PH,  W,xh, V,x,  I,b,  vex11 chk(W0) cpuid(F16C) p_66),
 
-    [0x20] = X86_OP_ENTRY4(PINSRB,     V,dq, H,dq, E,b,  vex5 cpuid(SSE41) zext2 p_66),
+    [0x20] = X86_OP_ENTRY4(PINSRB,     V,dq, H,dq, E,b,  vex5 cpuid(SSE41) op2_Ry p_66),
     [0x21] = X86_OP_GROUP0(VINSERTPS),
     [0x22] = X86_OP_ENTRY4(PINSR,      V,dq, H,dq, E,y,  vex5 cpuid(SSE41) p_66),
 
@@ -1883,17 +1883,17 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
     case X86_SPECIAL_HasLock:
         break;
 
-    case X86_SPECIAL_ZExtOp0:
+    case X86_SPECIAL_Op0_Rd:
         assert(decode.op[0].unit == X86_OP_INT);
         if (!decode.op[0].has_ea) {
             decode.op[0].ot = MO_32;
         }
         break;
 
-    case X86_SPECIAL_ZExtOp2:
+    case X86_SPECIAL_Op2_Ry:
         assert(decode.op[2].unit == X86_OP_INT);
         if (!decode.op[2].has_ea) {
-            decode.op[2].ot = MO_32;
+            decode.op[2].ot = s->dflag == MO_16 ? MO_32 : s->dflag;
         }
         break;
 
diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h
index 611bfddd957..b253f7457ae 100644
--- a/target/i386/tcg/decode-new.h
+++ b/target/i386/tcg/decode-new.h
@@ -165,11 +165,20 @@ typedef enum X86InsnSpecial {
     X86_SPECIAL_Locked,
 
     /*
-     * Register operand 0/2 is zero extended to 32 bits.  Rd/Mb or Rd/Mw
-     * in the manual.
+     * Rd/Mb or Rd/Mw in the manual: register operand 0 is treated as 32 bits
+     * (and writeback zero-extends it to 64 bits if applicable).  PREFIX_DATA
+     * does not trigger 16-bit writeback and, as a side effect, high-byte
+     * registers are never used.
      */
-    X86_SPECIAL_ZExtOp0,
-    X86_SPECIAL_ZExtOp2,
+    X86_SPECIAL_Op0_Rd,
+
+    /*
+     * Ry/Mb in the manual (PINSRB).  However, the high bits are never used by
+     * the instruction in either the register or memory cases; the *real* effect
+     * of this modifier is that high-byte registers are never used, even without
+     * a REX prefix.  Therefore, PINSRW does not need it despite having Ry/Mw.
+     */
+    X86_SPECIAL_Op2_Ry,
 
     /*
      * Register operand 2 is extended to full width, while a memory operand
-- 
2.43.0

[PULL 11/46] target/i386: add X86_SPECIALs for MOVSX and MOVZX

[Paolo Bonzini]

Usually the registers are just moved into s->T0 without much care for
their operand size.  However, in some cases we can get more efficient
code if the operand fetching logic syncs with the emission function
on what is nicer.

All the current uses are mostly demonstrative and only reduce the code
in the emission functions, because the instructions do not support
memory operands.  However the logic is generic and applies to several
more instructions such as MOVSXD (aka movslq), one-byte shift
instructions, multiplications, XLAT, and indirect calls/jumps.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.c.inc | 18 ++++++++++----
 target/i386/tcg/decode-new.h     |  4 +++
 target/i386/tcg/emit.c.inc       | 42 +++++++++++++++++---------------
 3 files changed, 40 insertions(+), 24 deletions(-)

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 00fdb243857..d7a86d96c0c 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -156,6 +156,8 @@
 #define op0_Rd .special = X86_SPECIAL_Op0_Rd,
 #define op2_Ry .special = X86_SPECIAL_Op2_Ry,
 #define avx_movx .special = X86_SPECIAL_AVXExtMov,
+#define sextT0 .special = X86_SPECIAL_SExtT0,
+#define zextT0 .special = X86_SPECIAL_ZExtT0,
 
 #define vex1 .vex_class = 1,
 #define vex1_rep3 .vex_class = 1, .vex_special = X86_VEX_REPScalar,
@@ -571,8 +573,8 @@ static const X86OpEntry opcodes_0F38_F0toFF[16][5] = {
     [5] = {
         X86_OP_ENTRY3(BZHI, G,y, E,y, B,y, vex13 cpuid(BMI1)),
         {},
-        X86_OP_ENTRY3(PEXT, G,y, B,y, E,y, vex13 cpuid(BMI2)),
-        X86_OP_ENTRY3(PDEP, G,y, B,y, E,y, vex13 cpuid(BMI2)),
+        X86_OP_ENTRY3(PEXT, G,y, B,y, E,y, vex13 zextT0 cpuid(BMI2)),
+        X86_OP_ENTRY3(PDEP, G,y, B,y, E,y, vex13 zextT0 cpuid(BMI2)),
         {},
     },
     [6] = {
@@ -583,10 +585,10 @@ static const X86OpEntry opcodes_0F38_F0toFF[16][5] = {
         {},
     },
     [7] = {
-        X86_OP_ENTRY3(BEXTR, G,y, E,y, B,y, vex13 cpuid(BMI1)),
+        X86_OP_ENTRY3(BEXTR, G,y, E,y, B,y, vex13 zextT0 cpuid(BMI1)),
         X86_OP_ENTRY3(SHLX, G,y, E,y, B,y, vex13 cpuid(BMI1)),
-        X86_OP_ENTRY3(SARX, G,y, E,y, B,y, vex13 cpuid(BMI1)),
-        X86_OP_ENTRY3(SHRX, G,y, E,y, B,y, vex13 cpuid(BMI1)),
+        X86_OP_ENTRY3(SARX, G,y, E,y, B,y, vex13 sextT0 cpuid(BMI1)),
+        X86_OP_ENTRY3(SHRX, G,y, E,y, B,y, vex13 zextT0 cpuid(BMI1)),
         {},
     },
 };
@@ -1905,6 +1907,12 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
         }
         break;
 
+    case X86_SPECIAL_SExtT0:
+    case X86_SPECIAL_ZExtT0:
+        /* Handled in gen_load.  */
+        assert(decode.op[1].unit == X86_OP_INT);
+        break;
+
     default:
         break;
     }
diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h
index b253f7457ae..70b6717227f 100644
--- a/target/i386/tcg/decode-new.h
+++ b/target/i386/tcg/decode-new.h
@@ -191,6 +191,10 @@ typedef enum X86InsnSpecial {
      * become P/P/Q/N, and size "x" becomes "q".
      */
     X86_SPECIAL_MMX,
+
+    /* When loaded into s->T0, register operand 1 is zero/sign extended.  */
+    X86_SPECIAL_SExtT0,
+    X86_SPECIAL_ZExtT0,
 } X86InsnSpecial;
 
 /*
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index f5e44117eab..4c2006fdd09 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -232,9 +232,30 @@ static void gen_load(DisasContext *s, X86DecodedInsn *decode, int opn, TCGv v)
         break;
     case X86_OP_INT:
         if (op->has_ea) {
-            gen_op_ld_v(s, op->ot, v, s->A0);
+            if (v == s->T0 && decode->e.special == X86_SPECIAL_SExtT0) {
+                gen_op_ld_v(s, op->ot | MO_SIGN, v, s->A0);
+            } else {
+                gen_op_ld_v(s, op->ot, v, s->A0);
+            }
+
+        } else if (op->ot == MO_8 && byte_reg_is_xH(s, op->n)) {
+            if (v == s->T0 && decode->e.special == X86_SPECIAL_SExtT0) {
+                tcg_gen_sextract_tl(v, cpu_regs[op->n - 4], 8, 8);
+            } else {
+                tcg_gen_extract_tl(v, cpu_regs[op->n - 4], 8, 8);
+            }
+
+        } else if (op->ot < MO_TL && v == s->T0 &&
+                   (decode->e.special == X86_SPECIAL_SExtT0 ||
+                    decode->e.special == X86_SPECIAL_ZExtT0)) {
+            if (decode->e.special == X86_SPECIAL_SExtT0) {
+                tcg_gen_ext_tl(v, cpu_regs[op->n], op->ot | MO_SIGN);
+            } else {
+                tcg_gen_ext_tl(v, cpu_regs[op->n], op->ot);
+            }
+
         } else {
-            gen_op_mov_v_reg(s, op->ot, v, op->n);
+            tcg_gen_mov_tl(v, cpu_regs[op->n]);
         }
         break;
     case X86_OP_IMM:
@@ -1084,9 +1105,6 @@ static void gen_BEXTR(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
      * Shifts larger than operand size get zeros.
      */
     tcg_gen_ext8u_tl(s->A0, s->T1);
-    if (TARGET_LONG_BITS == 64 && ot == MO_32) {
-        tcg_gen_ext32u_tl(s->T0, s->T0);
-    }
     tcg_gen_shr_tl(s->T0, s->T0, s->A0);
 
     tcg_gen_movcond_tl(TCG_COND_LEU, s->T0, s->A0, bound, s->T0, zero);
@@ -1428,19 +1446,11 @@ static void gen_PCMPISTRM(DisasContext *s, CPUX86State *env, X86DecodedInsn *dec
 
 static void gen_PDEP(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
-    MemOp ot = decode->op[1].ot;
-    if (ot < MO_64) {
-        tcg_gen_ext32u_tl(s->T0, s->T0);
-    }
     gen_helper_pdep(s->T0, s->T0, s->T1);
 }
 
 static void gen_PEXT(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
-    MemOp ot = decode->op[1].ot;
-    if (ot < MO_64) {
-        tcg_gen_ext32u_tl(s->T0, s->T0);
-    }
     gen_helper_pext(s->T0, s->T0, s->T1);
 }
 
@@ -1796,9 +1806,6 @@ static void gen_SARX(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 
     mask = ot == MO_64 ? 63 : 31;
     tcg_gen_andi_tl(s->T1, s->T1, mask);
-    if (ot != MO_64) {
-        tcg_gen_ext32s_tl(s->T0, s->T0);
-    }
     tcg_gen_sar_tl(s->T0, s->T0, s->T1);
 }
 
@@ -1873,9 +1880,6 @@ static void gen_SHRX(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 
     mask = ot == MO_64 ? 63 : 31;
     tcg_gen_andi_tl(s->T1, s->T1, mask);
-    if (ot != MO_64) {
-        tcg_gen_ext32u_tl(s->T0, s->T0);
-    }
     tcg_gen_shr_tl(s->T0, s->T0, s->T1);
 }
 
-- 
2.43.0

[PULL 12/46] target/i386: do not decode string source/destination into decode->mem

[Paolo Bonzini]

decode->mem is only used if one operand has has_ea == true.  String
operations will not use decode->mem and will load A0 on their own, because
they are the only case of two memory operands in a single instruction.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.c.inc | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index d7a86d96c0c..99d18d2871e 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -1212,6 +1212,8 @@ static bool decode_op(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode,
     case X86_TYPE_None:  /* Implicit or absent */
     case X86_TYPE_A:  /* Implicit */
     case X86_TYPE_F:  /* EFLAGS/RFLAGS */
+    case X86_TYPE_X:  /* string source */
+    case X86_TYPE_Y:  /* string destination */
         break;
 
     case X86_TYPE_B:  /* VEX.vvvv selects a GPR */
@@ -1346,24 +1348,6 @@ static bool decode_op(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode,
         op->n = insn_get(env, s, op->ot) >> 4;
         break;
 
-    case X86_TYPE_X:  /* string source */
-        op->n = -1;
-        decode->mem = (AddressParts) {
-            .def_seg = R_DS,
-            .base = R_ESI,
-            .index = -1,
-        };
-        break;
-
-    case X86_TYPE_Y:  /* string destination */
-        op->n = -1;
-        decode->mem = (AddressParts) {
-            .def_seg = R_ES,
-            .base = R_EDI,
-            .index = -1,
-        };
-        break;
-
     case X86_TYPE_2op:
         *op = decode->op[0];
         break;
-- 
2.43.0

[PULL 13/46] target/i386: do not clobber A0 in POP translation

[Paolo Bonzini]

The new decoder likes to compute the address in A0 very early, so the
gen_lea_v_seg in gen_pop_T0 would clobber the address of the memory
operand.  Instead use T0 since it is already available and will be
overwritten immediately after.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 34 ++++++++++++++++++++--------------
 1 file changed, 20 insertions(+), 14 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 73b83e07e23..efef4e74d4c 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -635,17 +635,17 @@ static TCGv eip_cur_tl(DisasContext *s)
     }
 }
 
-/* Compute SEG:REG into A0.  SEG is selected from the override segment
+/* Compute SEG:REG into DEST.  SEG is selected from the override segment
    (OVR_SEG) and the default segment (DEF_SEG).  OVR_SEG may be -1 to
    indicate no override.  */
-static void gen_lea_v_seg(DisasContext *s, MemOp aflag, TCGv a0,
-                          int def_seg, int ovr_seg)
+static void gen_lea_v_seg_dest(DisasContext *s, MemOp aflag, TCGv dest, TCGv a0,
+                               int def_seg, int ovr_seg)
 {
     switch (aflag) {
 #ifdef TARGET_X86_64
     case MO_64:
         if (ovr_seg < 0) {
-            tcg_gen_mov_tl(s->A0, a0);
+            tcg_gen_mov_tl(dest, a0);
             return;
         }
         break;
@@ -656,14 +656,14 @@ static void gen_lea_v_seg(DisasContext *s, MemOp aflag, TCGv a0,
             ovr_seg = def_seg;
         }
         if (ovr_seg < 0) {
-            tcg_gen_ext32u_tl(s->A0, a0);
+            tcg_gen_ext32u_tl(dest, a0);
             return;
         }
         break;
     case MO_16:
         /* 16 bit address */
-        tcg_gen_ext16u_tl(s->A0, a0);
-        a0 = s->A0;
+        tcg_gen_ext16u_tl(dest, a0);
+        a0 = dest;
         if (ovr_seg < 0) {
             if (ADDSEG(s)) {
                 ovr_seg = def_seg;
@@ -680,17 +680,23 @@ static void gen_lea_v_seg(DisasContext *s, MemOp aflag, TCGv a0,
         TCGv seg = cpu_seg_base[ovr_seg];
 
         if (aflag == MO_64) {
-            tcg_gen_add_tl(s->A0, a0, seg);
+            tcg_gen_add_tl(dest, a0, seg);
         } else if (CODE64(s)) {
-            tcg_gen_ext32u_tl(s->A0, a0);
-            tcg_gen_add_tl(s->A0, s->A0, seg);
+            tcg_gen_ext32u_tl(dest, a0);
+            tcg_gen_add_tl(dest, dest, seg);
         } else {
-            tcg_gen_add_tl(s->A0, a0, seg);
-            tcg_gen_ext32u_tl(s->A0, s->A0);
+            tcg_gen_add_tl(dest, a0, seg);
+            tcg_gen_ext32u_tl(dest, dest);
         }
     }
 }
 
+static void gen_lea_v_seg(DisasContext *s, MemOp aflag, TCGv a0,
+                          int def_seg, int ovr_seg)
+{
+    gen_lea_v_seg_dest(s, aflag, s->A0, a0, def_seg, ovr_seg);
+}
+
 static inline void gen_string_movl_A0_ESI(DisasContext *s)
 {
     gen_lea_v_seg(s, s->aflag, cpu_regs[R_ESI], R_DS, s->override);
@@ -2576,8 +2582,8 @@ static MemOp gen_pop_T0(DisasContext *s)
 {
     MemOp d_ot = mo_pushpop(s, s->dflag);
 
-    gen_lea_v_seg(s, mo_stacksize(s), cpu_regs[R_ESP], R_SS, -1);
-    gen_op_ld_v(s, d_ot, s->T0, s->A0);
+    gen_lea_v_seg_dest(s, mo_stacksize(s), s->T0, cpu_regs[R_ESP], R_SS, -1);
+    gen_op_ld_v(s, d_ot, s->T0, s->T0);
 
     return d_ot;
 }
-- 
2.43.0

[PULL 14/46] target/i386: do not clobber T0 on string operations

[Paolo Bonzini]

The new decoder would rather have the operand in T0 when expanding SCAS, rather
than use R_EAX directly as gen_scas currently does.  This makes SCAS more similar
to CMP and SUB, in that CC_DST = T0 - T1.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 45 ++++++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 21 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index efef4e74d4c..00ed0cc9a31 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -522,9 +522,9 @@ void gen_op_add_reg_im(DisasContext *s, MemOp size, int reg, int32_t val)
     gen_op_mov_reg_v(s, size, reg, s->tmp0);
 }
 
-static inline void gen_op_add_reg_T0(DisasContext *s, MemOp size, int reg)
+static inline void gen_op_add_reg(DisasContext *s, MemOp size, int reg, TCGv val)
 {
-    tcg_gen_add_tl(s->tmp0, cpu_regs[reg], s->T0);
+    tcg_gen_add_tl(s->tmp0, cpu_regs[reg], val);
     gen_op_mov_reg_v(s, size, reg, s->tmp0);
 }
 
@@ -707,10 +707,12 @@ static inline void gen_string_movl_A0_EDI(DisasContext *s)
     gen_lea_v_seg(s, s->aflag, cpu_regs[R_EDI], R_ES, -1);
 }
 
-static inline void gen_op_movl_T0_Dshift(DisasContext *s, MemOp ot)
+static inline TCGv gen_compute_Dshift(DisasContext *s, MemOp ot)
 {
-    tcg_gen_ld32s_tl(s->T0, tcg_env, offsetof(CPUX86State, df));
-    tcg_gen_shli_tl(s->T0, s->T0, ot);
+    TCGv dshift = tcg_temp_new();
+    tcg_gen_ld32s_tl(dshift, tcg_env, offsetof(CPUX86State, df));
+    tcg_gen_shli_tl(dshift, dshift, ot);
+    return dshift;
 };
 
 static TCGv gen_ext_tl(TCGv dst, TCGv src, MemOp size, bool sign)
@@ -818,13 +820,16 @@ static bool gen_check_io(DisasContext *s, MemOp ot, TCGv_i32 port,
 
 static void gen_movs(DisasContext *s, MemOp ot)
 {
+    TCGv dshift;
+
     gen_string_movl_A0_ESI(s);
     gen_op_ld_v(s, ot, s->T0, s->A0);
     gen_string_movl_A0_EDI(s);
     gen_op_st_v(s, ot, s->T0, s->A0);
-    gen_op_movl_T0_Dshift(s, ot);
-    gen_op_add_reg_T0(s, s->aflag, R_ESI);
-    gen_op_add_reg_T0(s, s->aflag, R_EDI);
+
+    dshift = gen_compute_Dshift(s, ot);
+    gen_op_add_reg(s, s->aflag, R_ESI, dshift);
+    gen_op_add_reg(s, s->aflag, R_EDI, dshift);
 }
 
 static void gen_op_update1_cc(DisasContext *s)
@@ -1249,8 +1254,7 @@ static void gen_stos(DisasContext *s, MemOp ot)
     gen_op_mov_v_reg(s, MO_32, s->T0, R_EAX);
     gen_string_movl_A0_EDI(s);
     gen_op_st_v(s, ot, s->T0, s->A0);
-    gen_op_movl_T0_Dshift(s, ot);
-    gen_op_add_reg_T0(s, s->aflag, R_EDI);
+    gen_op_add_reg(s, s->aflag, R_EDI, gen_compute_Dshift(s, ot));
 }
 
 static void gen_lods(DisasContext *s, MemOp ot)
@@ -1258,8 +1262,7 @@ static void gen_lods(DisasContext *s, MemOp ot)
     gen_string_movl_A0_ESI(s);
     gen_op_ld_v(s, ot, s->T0, s->A0);
     gen_op_mov_reg_v(s, ot, R_EAX, s->T0);
-    gen_op_movl_T0_Dshift(s, ot);
-    gen_op_add_reg_T0(s, s->aflag, R_ESI);
+    gen_op_add_reg(s, s->aflag, R_ESI, gen_compute_Dshift(s, ot));
 }
 
 static void gen_scas(DisasContext *s, MemOp ot)
@@ -1267,19 +1270,21 @@ static void gen_scas(DisasContext *s, MemOp ot)
     gen_string_movl_A0_EDI(s);
     gen_op_ld_v(s, ot, s->T1, s->A0);
     gen_op(s, OP_CMPL, ot, R_EAX);
-    gen_op_movl_T0_Dshift(s, ot);
-    gen_op_add_reg_T0(s, s->aflag, R_EDI);
+    gen_op_add_reg(s, s->aflag, R_EDI, gen_compute_Dshift(s, ot));
 }
 
 static void gen_cmps(DisasContext *s, MemOp ot)
 {
+    TCGv dshift;
+
     gen_string_movl_A0_EDI(s);
     gen_op_ld_v(s, ot, s->T1, s->A0);
     gen_string_movl_A0_ESI(s);
     gen_op(s, OP_CMPL, ot, OR_TMP0);
-    gen_op_movl_T0_Dshift(s, ot);
-    gen_op_add_reg_T0(s, s->aflag, R_ESI);
-    gen_op_add_reg_T0(s, s->aflag, R_EDI);
+
+    dshift = gen_compute_Dshift(s, ot);
+    gen_op_add_reg(s, s->aflag, R_ESI, dshift);
+    gen_op_add_reg(s, s->aflag, R_EDI, dshift);
 }
 
 static void gen_bpt_io(DisasContext *s, TCGv_i32 t_port, int ot)
@@ -1307,8 +1312,7 @@ static void gen_ins(DisasContext *s, MemOp ot)
     tcg_gen_andi_i32(s->tmp2_i32, s->tmp2_i32, 0xffff);
     gen_helper_in_func(ot, s->T0, s->tmp2_i32);
     gen_op_st_v(s, ot, s->T0, s->A0);
-    gen_op_movl_T0_Dshift(s, ot);
-    gen_op_add_reg_T0(s, s->aflag, R_EDI);
+    gen_op_add_reg(s, s->aflag, R_EDI, gen_compute_Dshift(s, ot));
     gen_bpt_io(s, s->tmp2_i32, ot);
 }
 
@@ -1321,8 +1325,7 @@ static void gen_outs(DisasContext *s, MemOp ot)
     tcg_gen_andi_i32(s->tmp2_i32, s->tmp2_i32, 0xffff);
     tcg_gen_trunc_tl_i32(s->tmp3_i32, s->T0);
     gen_helper_out_func(ot, s->tmp2_i32, s->tmp3_i32);
-    gen_op_movl_T0_Dshift(s, ot);
-    gen_op_add_reg_T0(s, s->aflag, R_ESI);
+    gen_op_add_reg(s, s->aflag, R_ESI, gen_compute_Dshift(s, ot));
     gen_bpt_io(s, s->tmp2_i32, ot);
 }
 
-- 
2.43.0

[PULL 15/46] target/i386: split eflags computation out of gen_compute_eflags

[Paolo Bonzini]

The new x86 decoder wants the gen_* functions to compute EFLAGS before
writeback, which can be an issue for instructions with a memory
destination such as ARPL or shifts.

Extract code to compute the EFLAGS without clobbering CC_SRC, in case
the memory write causes a fault.  The flags writeback mechanism will
take care of copying the result to CC_SRC.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 00ed0cc9a31..b79c312465b 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -862,22 +862,22 @@ static void gen_op_update_neg_cc(DisasContext *s)
     tcg_gen_movi_tl(s->cc_srcT, 0);
 }
 
-/* compute all eflags to cc_src */
-static void gen_compute_eflags(DisasContext *s)
+/* compute all eflags to reg */
+static void gen_mov_eflags(DisasContext *s, TCGv reg)
 {
-    TCGv zero, dst, src1, src2;
+    TCGv dst, src1, src2;
+    TCGv_i32 cc_op;
     int live, dead;
 
     if (s->cc_op == CC_OP_EFLAGS) {
+        tcg_gen_mov_tl(reg, cpu_cc_src);
         return;
     }
     if (s->cc_op == CC_OP_CLR) {
-        tcg_gen_movi_tl(cpu_cc_src, CC_Z | CC_P);
-        set_cc_op(s, CC_OP_EFLAGS);
+        tcg_gen_movi_tl(reg, CC_Z | CC_P);
         return;
     }
 
-    zero = NULL;
     dst = cpu_cc_dst;
     src1 = cpu_cc_src;
     src2 = cpu_cc_src2;
@@ -886,7 +886,7 @@ static void gen_compute_eflags(DisasContext *s)
     live = cc_op_live[s->cc_op] & ~USES_CC_SRCT;
     dead = live ^ (USES_CC_DST | USES_CC_SRC | USES_CC_SRC2);
     if (dead) {
-        zero = tcg_constant_tl(0);
+        TCGv zero = tcg_constant_tl(0);
         if (dead & USES_CC_DST) {
             dst = zero;
         }
@@ -898,8 +898,18 @@ static void gen_compute_eflags(DisasContext *s)
         }
     }
 
-    gen_update_cc_op(s);
-    gen_helper_cc_compute_all(cpu_cc_src, dst, src1, src2, cpu_cc_op);
+    if (s->cc_op != CC_OP_DYNAMIC) {
+        cc_op = tcg_constant_i32(s->cc_op);
+    } else {
+        cc_op = cpu_cc_op;
+    }
+    gen_helper_cc_compute_all(reg, dst, src1, src2, cc_op);
+}
+
+/* compute all eflags to cc_src */
+static void gen_compute_eflags(DisasContext *s)
+{
+    gen_mov_eflags(s, cpu_cc_src);
     set_cc_op(s, CC_OP_EFLAGS);
 }
 
-- 
2.43.0

[PULL 16/46] target/i386: do not use s->tmp4 for push

[Paolo Bonzini]

Just create a temporary for the occasion.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index b79c312465b..afe0fa6c65f 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -2580,7 +2580,7 @@ static void gen_push_v(DisasContext *s, TCGv val)
 
     if (!CODE64(s)) {
         if (ADDSEG(s)) {
-            new_esp = s->tmp4;
+            new_esp = tcg_temp_new();
             tcg_gen_mov_tl(new_esp, s->A0);
         }
         gen_lea_v_seg(s, a_ot, s->A0, R_SS, -1);
-- 
2.43.0

[PULL 17/46] target/i386: do not use s->tmp0 for jumps on ECX ==/!= 0

[Paolo Bonzini]

Create a new temporary, to ease the register allocator's work.

Creation of the temporary is pushed into gen_ext_tl, which
also allows NULL as the first parameter now.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index afe0fa6c65f..e5f71170967 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -720,6 +720,9 @@ static TCGv gen_ext_tl(TCGv dst, TCGv src, MemOp size, bool sign)
     if (size == MO_TL) {
         return src;
     }
+    if (!dst) {
+        dst = tcg_temp_new();
+    }
     tcg_gen_ext_tl(dst, src, size | (sign ? MO_SIGN : 0));
     return dst;
 }
@@ -736,9 +739,9 @@ static void gen_exts(MemOp ot, TCGv reg)
 
 static void gen_op_j_ecx(DisasContext *s, TCGCond cond, TCGLabel *label1)
 {
-    tcg_gen_mov_tl(s->tmp0, cpu_regs[R_ECX]);
-    gen_extu(s->aflag, s->tmp0);
-    tcg_gen_brcondi_tl(cond, s->tmp0, 0, label1);
+    TCGv tmp = gen_ext_tl(NULL, cpu_regs[R_ECX], s->aflag, false);
+
+    tcg_gen_brcondi_tl(cond, tmp, 0, label1);
 }
 
 static inline void gen_op_jz_ecx(DisasContext *s, TCGLabel *label1)
-- 
2.43.0

[PULL 18/46] target/i386: prepare for implementation of STOS/SCAS in new decoder

[Paolo Bonzini]

Do not use gen_op, and pull the load from the accumulator into
disas_insn.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index e5f71170967..ecbd80a19ad 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -1264,7 +1264,6 @@ static TCGLabel *gen_jz_ecx_string(DisasContext *s)
 
 static void gen_stos(DisasContext *s, MemOp ot)
 {
-    gen_op_mov_v_reg(s, MO_32, s->T0, R_EAX);
     gen_string_movl_A0_EDI(s);
     gen_op_st_v(s, ot, s->T0, s->A0);
     gen_op_add_reg(s, s->aflag, R_EDI, gen_compute_Dshift(s, ot));
@@ -1282,7 +1281,11 @@ static void gen_scas(DisasContext *s, MemOp ot)
 {
     gen_string_movl_A0_EDI(s);
     gen_op_ld_v(s, ot, s->T1, s->A0);
-    gen_op(s, OP_CMPL, ot, R_EAX);
+    tcg_gen_mov_tl(cpu_cc_src, s->T1);
+    tcg_gen_mov_tl(s->cc_srcT, s->T0);
+    tcg_gen_sub_tl(cpu_cc_dst, s->T0, s->T1);
+    set_cc_op(s, CC_OP_SUBB + ot);
+
     gen_op_add_reg(s, s->aflag, R_EDI, gen_compute_Dshift(s, ot));
 }
 
@@ -4952,6 +4955,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
     case 0xaa: /* stosS */
     case 0xab:
         ot = mo_b_d(b, dflag);
+        gen_op_mov_v_reg(s, MO_32, s->T0, R_EAX);
         if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
             gen_repz_stos(s, ot);
         } else {
@@ -4970,6 +4974,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
     case 0xae: /* scasS */
     case 0xaf:
         ot = mo_b_d(b, dflag);
+        gen_op_mov_v_reg(s, MO_32, s->T0, R_EAX);
         if (prefixes & PREFIX_REPNZ) {
             gen_repz_scas(s, ot, 1);
         } else if (prefixes & PREFIX_REPZ) {
-- 
2.43.0

[PULL 19/46] target/i386: move operand load and writeback out of gen_cmovcc1

[Paolo Bonzini]

Similar to gen_setcc1, make gen_cmovcc1 receive TCGv.  This is more friendly
to simultaneous implementation in the old and the new decoder.

A small wart is that s->T0 of CMOV is currently the *second* argument (which
would ordinarily be in T1).  Therefore, the condition has to be inverted in
order to overwrite s->T0 with cpu_regs[reg] if the MOV is not performed.

This only applies to the old decoder, and this code will go away soon.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/translate.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index ecbd80a19ad..fe82d421576 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -2500,14 +2500,10 @@ static void gen_jcc(DisasContext *s, int b, int diff)
     gen_jmp_rel(s, s->dflag, diff, 0);
 }
 
-static void gen_cmovcc1(CPUX86State *env, DisasContext *s, MemOp ot, int b,
-                        int modrm, int reg)
+static void gen_cmovcc1(DisasContext *s, int b, TCGv dest, TCGv src)
 {
-    CCPrepare cc;
+    CCPrepare cc = gen_prepare_cc(s, b, s->T1);
 
-    gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
-
-    cc = gen_prepare_cc(s, b, s->T1);
     if (cc.mask != -1) {
         TCGv t0 = tcg_temp_new();
         tcg_gen_andi_tl(t0, cc.reg, cc.mask);
@@ -2517,9 +2513,7 @@ static void gen_cmovcc1(CPUX86State *env, DisasContext *s, MemOp ot, int b,
         cc.reg2 = tcg_constant_tl(cc.imm);
     }
 
-    tcg_gen_movcond_tl(cc.cond, s->T0, cc.reg, cc.reg2,
-                       s->T0, cpu_regs[reg]);
-    gen_op_mov_reg_v(s, ot, reg, s->T0);
+    tcg_gen_movcond_tl(cc.cond, dest, cc.reg, cc.reg2, src, dest);
 }
 
 static inline void gen_op_movl_T0_seg(DisasContext *s, X86Seg seg_reg)
@@ -5228,7 +5222,9 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
         ot = dflag;
         modrm = x86_ldub_code(env, s);
         reg = ((modrm >> 3) & 7) | REX_R(s);
-        gen_cmovcc1(env, s, ot, b, modrm, reg);
+        gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
+        gen_cmovcc1(s, b ^ 1, s->T0, cpu_regs[reg]);
+        gen_op_mov_reg_v(s, ot, reg, s->T0);
         break;
 
         /************************/
-- 
2.43.0

[PULL 20/46] target/i386: adjust decoding of J operand

[Paolo Bonzini]

gen_jcc() has been changed to accept a relative offset since the
new decoder was written.  Adjust the J operand, which is meant
to be used with jump instructions such as gen_jcc(), to not
include the program counter and to not truncate the result, as
both operations are now performed by common code.

The result is that J is now the same as the I operand.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.c.inc | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 99d18d2871e..f30889dbc0a 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -1329,19 +1329,9 @@ static bool decode_op(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode,
         }
 
     case X86_TYPE_I:  /* Immediate */
-        op->unit = X86_OP_IMM;
-        decode->immediate = insn_get_signed(env, s, op->ot);
-        break;
-
     case X86_TYPE_J:  /* Relative offset for a jump */
         op->unit = X86_OP_IMM;
         decode->immediate = insn_get_signed(env, s, op->ot);
-        decode->immediate += s->pc - s->cs_base;
-        if (s->dflag == MO_16) {
-            decode->immediate &= 0xffff;
-        } else if (!CODE64(s)) {
-            decode->immediate &= 0xffffffffu;
-        }
         break;
 
     case X86_TYPE_L:  /* The upper 4 bits of the immediate select a 128-bit register */
-- 
2.43.0

[PULL 21/46] target/i386: introduce flags writeback mechanism

[Paolo Bonzini]

ALU instructions can write to both memory and flags.  If the CC_SRC*
and CC_DST locations have been written already when a memory access
causes a fault, the value in CC_SRC* and CC_DST might be interpreted
with the wrong CC_OP (the one that is in effect before the instruction.

Besides just using the wrong result for the flags, something like
subtracting -1 can have disastrous effects if the current CC_OP is
CC_OP_EFLAGS: this is because QEMU does not expect bits outside the ALU
flags to be set in CC_SRC, and env->eflags can end up set to all-ones.
In the case of the attached testcase, this sets IOPL to 3 and would
cause an assertion failure if SUB is moved to the new decoder.

This mechanism is not really needed for BMI instructions, which can
only write to a register, but put it to use anyway for cleanliness.
In the case of BZHI, the code has to be modified slightly to ensure
that decode->cc_src is written, otherwise the new assertions trigger.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.h                |  1 +
 target/i386/tcg/decode-new.c.inc | 34 +++++++++++++++++++++++++++++
 target/i386/tcg/decode-new.h     |  4 ++++
 target/i386/tcg/emit.c.inc       | 36 ++++++++++++++++++++-----------
 tests/tcg/i386/Makefile.target   |  2 +-
 tests/tcg/i386/test-flags.c      | 37 ++++++++++++++++++++++++++++++++
 6 files changed, 101 insertions(+), 13 deletions(-)
 create mode 100644 tests/tcg/i386/test-flags.c

diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index ecdd4518c64..7f0786e8b98 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1285,6 +1285,7 @@ typedef enum {
 
     CC_OP_NB,
 } CCOp;
+QEMU_BUILD_BUG_ON(CC_OP_NB >= 128);
 
 typedef struct SegmentCache {
     uint32_t selector;
diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index f30889dbc0a..717d7307722 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -1662,6 +1662,7 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
     bool first = true;
     X86DecodedInsn decode;
     X86DecodeFunc decode_func = decode_root;
+    uint8_t cc_live;
 
     s->has_modrm = false;
 
@@ -1815,6 +1816,7 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
     }
 
     memset(&decode, 0, sizeof(decode));
+    decode.cc_op = -1;
     decode.b = b;
     if (!decode_insn(s, env, decode_func, &decode)) {
         goto illegal_op;
@@ -1953,6 +1955,38 @@ static void disas_insn_new(DisasContext *s, CPUState *cpu, int b)
         decode.e.gen(s, env, &decode);
         gen_writeback(s, &decode, 0, s->T0);
     }
+
+    /*
+     * Write back flags after last memory access.  Some newer ALU instructions, as
+     * well as SSE instructions, write flags in the gen_* function, but that can
+     * cause incorrect tracking of CC_OP for instructions that write to both memory
+     * and flags.
+     */
+    if (decode.cc_op != -1) {
+        if (decode.cc_dst) {
+            tcg_gen_mov_tl(cpu_cc_dst, decode.cc_dst);
+        }
+        if (decode.cc_src) {
+            tcg_gen_mov_tl(cpu_cc_src, decode.cc_src);
+        }
+        if (decode.cc_src2) {
+            tcg_gen_mov_tl(cpu_cc_src2, decode.cc_src2);
+        }
+        if (decode.cc_op == CC_OP_DYNAMIC) {
+            tcg_gen_mov_i32(cpu_cc_op, decode.cc_op_dynamic);
+        }
+        set_cc_op(s, decode.cc_op);
+        cc_live = cc_op_live[decode.cc_op];
+    } else {
+        cc_live = 0;
+    }
+    if (decode.cc_op != CC_OP_DYNAMIC) {
+        assert(!decode.cc_op_dynamic);
+        assert(!!decode.cc_dst == !!(cc_live & USES_CC_DST));
+        assert(!!decode.cc_src == !!(cc_live & USES_CC_SRC));
+        assert(!!decode.cc_src2 == !!(cc_live & USES_CC_SRC2));
+    }
+
     return;
  gp_fault:
     gen_exception_gpf(s);
diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h
index 70b6717227f..25220fc4362 100644
--- a/target/i386/tcg/decode-new.h
+++ b/target/i386/tcg/decode-new.h
@@ -283,6 +283,10 @@ struct X86DecodedInsn {
     target_ulong immediate;
     AddressParts mem;
 
+    TCGv cc_dst, cc_src, cc_src2;
+    TCGv_i32 cc_op_dynamic;
+    int8_t cc_op;
+
     uint8_t b;
 };
 
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index 4c2006fdd09..fd120e7b9b4 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -339,6 +339,19 @@ static inline int vector_len(DisasContext *s, X86DecodedInsn *decode)
     return s->vex_l ? 32 : 16;
 }
 
+static void prepare_update1_cc(X86DecodedInsn *decode, DisasContext *s, CCOp op)
+{
+    decode->cc_dst = s->T0;
+    decode->cc_op = op;
+}
+
+static void prepare_update2_cc(X86DecodedInsn *decode, DisasContext *s, CCOp op)
+{
+    decode->cc_src = s->T1;
+    decode->cc_dst = s->T0;
+    decode->cc_op = op;
+}
+
 static void gen_store_sse(DisasContext *s, X86DecodedInsn *decode, int src_ofs)
 {
     MemOp ot = decode->op[0].ot;
@@ -1027,6 +1040,7 @@ static void gen_##uname(DisasContext *s, CPUX86State *env, X86DecodedInsn *decod
 VSIB_AVX(VPGATHERD, vpgatherd)
 VSIB_AVX(VPGATHERQ, vpgatherq)
 
+/* ADCX/ADOX do not have memory operands and can use set_cc_op.  */
 static void gen_ADCOX(DisasContext *s, CPUX86State *env, MemOp ot, int cc_op)
 {
     int opposite_cc_op;
@@ -1089,8 +1103,7 @@ static void gen_ANDN(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
     MemOp ot = decode->op[0].ot;
 
     tcg_gen_andc_tl(s->T0, s->T1, s->T0);
-    gen_op_update1_cc(s);
-    set_cc_op(s, CC_OP_LOGICB + ot);
+    prepare_update1_cc(decode, s, CC_OP_LOGICB + ot);
 }
 
 static void gen_BEXTR(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
@@ -1118,10 +1131,10 @@ static void gen_BEXTR(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
     tcg_gen_movcond_tl(TCG_COND_LEU, s->T1, s->A0, bound, s->T1, zero);
     tcg_gen_andc_tl(s->T0, s->T0, s->T1);
 
-    gen_op_update1_cc(s);
-    set_cc_op(s, CC_OP_LOGICB + ot);
+    prepare_update1_cc(decode, s, CC_OP_LOGICB + ot);
 }
 
+/* BLSI do not have memory operands and can use set_cc_op.  */
 static void gen_BLSI(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     MemOp ot = decode->op[0].ot;
@@ -1133,6 +1146,7 @@ static void gen_BLSI(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
     set_cc_op(s, CC_OP_BMILGB + ot);
 }
 
+/* BLSMSK do not have memory operands and can use set_cc_op.  */
 static void gen_BLSMSK(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     MemOp ot = decode->op[0].ot;
@@ -1144,6 +1158,7 @@ static void gen_BLSMSK(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode
     set_cc_op(s, CC_OP_BMILGB + ot);
 }
 
+/* BLSR do not have memory operands and can use set_cc_op.  */
 static void gen_BLSR(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     MemOp ot = decode->op[0].ot;
@@ -1164,18 +1179,15 @@ static void gen_BZHI(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 
     tcg_gen_ext8u_tl(s->T1, s->T1);
 
+    tcg_gen_shl_tl(s->A0, mone, s->T1);
+    tcg_gen_movcond_tl(TCG_COND_LEU, s->A0, s->T1, bound, s->A0, zero);
+    tcg_gen_andc_tl(s->T0, s->T0, s->A0);
     /*
      * Note that since we're using BMILG (in order to get O
      * cleared) we need to store the inverse into C.
      */
-    tcg_gen_setcond_tl(TCG_COND_LEU, cpu_cc_src, s->T1, bound);
-
-    tcg_gen_shl_tl(s->A0, mone, s->T1);
-    tcg_gen_movcond_tl(TCG_COND_LEU, s->A0, s->T1, bound, s->A0, zero);
-    tcg_gen_andc_tl(s->T0, s->T0, s->A0);
-
-    gen_op_update1_cc(s);
-    set_cc_op(s, CC_OP_BMILGB + ot);
+    tcg_gen_setcond_tl(TCG_COND_LEU, s->T1, s->T1, bound);
+    prepare_update2_cc(decode, s, CC_OP_BMILGB + ot);
 }
 
 static void gen_CRC32(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
diff --git a/tests/tcg/i386/Makefile.target b/tests/tcg/i386/Makefile.target
index 3dec7c6c423..9906f9e116b 100644
--- a/tests/tcg/i386/Makefile.target
+++ b/tests/tcg/i386/Makefile.target
@@ -13,7 +13,7 @@ config-cc.mak: Makefile
 
 I386_SRCS=$(notdir $(wildcard $(I386_SRC)/*.c))
 ALL_X86_TESTS=$(I386_SRCS:.c=)
-SKIP_I386_TESTS=test-i386-ssse3 test-avx test-3dnow test-mmx
+SKIP_I386_TESTS=test-i386-ssse3 test-avx test-3dnow test-mmx test-flags
 X86_64_TESTS:=$(filter test-i386-adcox test-i386-bmi2 $(SKIP_I386_TESTS), $(ALL_X86_TESTS))
 
 test-i386-sse-exceptions: CFLAGS += -msse4.1 -mfpmath=sse
diff --git a/tests/tcg/i386/test-flags.c b/tests/tcg/i386/test-flags.c
new file mode 100644
index 00000000000..c379e296275
--- /dev/null
+++ b/tests/tcg/i386/test-flags.c
@@ -0,0 +1,37 @@
+#define _GNU_SOURCE
+#include <sys/mman.h>
+#include <signal.h>
+#include <stdio.h>
+#include <assert.h>
+
+volatile unsigned long flags;
+volatile unsigned long flags_after;
+int *addr;
+
+void sigsegv(int sig, siginfo_t *info, ucontext_t *uc)
+{
+    flags = uc->uc_mcontext.gregs[REG_EFL];
+    mprotect(addr, 4096, PROT_READ|PROT_WRITE);
+}
+
+int main()
+{
+    struct sigaction sa = { .sa_handler = (void *)sigsegv, .sa_flags = SA_SIGINFO };
+    sigaction(SIGSEGV, &sa, NULL);
+
+    /* fault in the page then protect it */
+    addr = mmap (NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0);
+    *addr = 0x1234;
+    mprotect(addr, 4096, PROT_READ);
+
+    asm("# set flags to all ones    \n"
+        "mov $-1, %%eax             \n"
+        "movq addr, %%rdi           \n"
+        "sahf                       \n"
+        "sub %%eax, (%%rdi)         \n"
+        "pushf                      \n"
+        "pop  flags_after(%%rip)    \n" : : : "eax", "edi", "memory");
+
+    /* OF can have any value before the SUB instruction.  */
+    assert((flags & 0xff) == 0xd7 && (flags_after & 0x8ff) == 0x17);
+}
-- 
2.43.0

[PULL 22/46] target/i386: implement CMPccXADD

[Paolo Bonzini]

The main difficulty here is that a page fault when writing to the destination
must not overwrite the flags.  Therefore, the flags computation must be
inlined instead of using gen_jcc1*.

For simplicity, I am using an unconditional cmpxchg operation, that becomes
a NOP if the comparison fails.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/cpu.c                |   2 +-
 target/i386/tcg/decode-new.c.inc |  25 ++++++++
 target/i386/tcg/decode-new.h     |   1 +
 target/i386/tcg/emit.c.inc       | 104 +++++++++++++++++++++++++++++++
 target/i386/tcg/translate.c      |   2 +
 5 files changed, 133 insertions(+), 1 deletion(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 95d5f16cd5e..fd47ee7defb 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -738,7 +738,7 @@ void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
 #define TCG_7_0_EDX_FEATURES (CPUID_7_0_EDX_FSRM | CPUID_7_0_EDX_KERNEL_FEATURES)
 
 #define TCG_7_1_EAX_FEATURES (CPUID_7_1_EAX_FZRM | CPUID_7_1_EAX_FSRS | \
-          CPUID_7_1_EAX_FSRC)
+          CPUID_7_1_EAX_FSRC | CPUID_7_1_EAX_CMPCCXADD)
 #define TCG_7_1_EDX_FEATURES 0
 #define TCG_7_2_EDX_FEATURES 0
 #define TCG_APM_FEATURES 0
diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 717d7307722..426c4594120 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -538,6 +538,28 @@ static const X86OpEntry opcodes_0F38_00toEF[240] = {
     [0xdd] = X86_OP_ENTRY3(VAESENCLAST, V,x,  H,x,       W,x,  vex4 cpuid(AES) p_66),
     [0xde] = X86_OP_ENTRY3(VAESDEC,     V,x,  H,x,       W,x,  vex4 cpuid(AES) p_66),
     [0xdf] = X86_OP_ENTRY3(VAESDECLAST, V,x,  H,x,       W,x,  vex4 cpuid(AES) p_66),
+
+    /*
+     * REG selects srcdest2 operand, VEX.vvvv selects src3.  VEX class not found
+     * in manual, assumed to be 13 from the VEX.L0 constraint.
+     */
+    [0xe0] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe1] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe2] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe3] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe4] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe5] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe6] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe7] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+
+    [0xe8] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xe9] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xea] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xeb] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xec] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xed] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xee] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
+    [0xef] = X86_OP_ENTRY3(CMPccXADD,   M,y, G,y, B,y,  vex13 xchg chk(o64) cpuid(CMPCCXADD) p_66),
 };
 
 /* five rows for no prefix, 66, F3, F2, 66+F2  */
@@ -1503,6 +1525,9 @@ static bool has_cpuid_feature(DisasContext *s, X86CPUIDFeature cpuid)
         return (s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_AVX2);
     case X86_FEAT_SHA_NI:
         return (s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_SHA_NI);
+
+    case X86_FEAT_CMPCCXADD:
+        return (s->cpuid_7_1_eax_features & CPUID_7_1_EAX_CMPCCXADD);
     }
     g_assert_not_reached();
 }
diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h
index 25220fc4362..15e6bfef4b1 100644
--- a/target/i386/tcg/decode-new.h
+++ b/target/i386/tcg/decode-new.h
@@ -104,6 +104,7 @@ typedef enum X86CPUIDFeature {
     X86_FEAT_AVX2,
     X86_FEAT_BMI1,
     X86_FEAT_BMI2,
+    X86_FEAT_CMPCCXADD,
     X86_FEAT_F16C,
     X86_FEAT_FMA,
     X86_FEAT_MOVBE,
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index fd120e7b9b4..6bcf88ecd71 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -1190,6 +1190,110 @@ static void gen_BZHI(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
     prepare_update2_cc(decode, s, CC_OP_BMILGB + ot);
 }
 
+static void gen_CMPccXADD(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
+{
+    TCGLabel *label_top = gen_new_label();
+    TCGLabel *label_bottom = gen_new_label();
+    TCGv oldv = tcg_temp_new();
+    TCGv newv = tcg_temp_new();
+    TCGv cmpv = tcg_temp_new();
+    TCGCond cond;
+
+    TCGv cmp_lhs, cmp_rhs;
+    MemOp ot, ot_full;
+
+    int jcc_op = (decode->b >> 1) & 7;
+    static const TCGCond cond_table[8] = {
+        [JCC_O] = TCG_COND_LT,  /* test sign bit by comparing against 0 */
+        [JCC_B] = TCG_COND_LTU,
+        [JCC_Z] = TCG_COND_EQ,
+        [JCC_BE] = TCG_COND_LEU,
+        [JCC_S] = TCG_COND_LT,  /* test sign bit by comparing against 0 */
+        [JCC_P] = TCG_COND_EQ,  /* even parity - tests low bit of popcount */
+        [JCC_L] = TCG_COND_LT,
+        [JCC_LE] = TCG_COND_LE,
+    };
+
+    cond = cond_table[jcc_op];
+    if (decode->b & 1) {
+        cond = tcg_invert_cond(cond);
+    }
+
+    ot = decode->op[0].ot;
+    ot_full = ot | MO_LE;
+    if (jcc_op >= JCC_S) {
+        /*
+         * Sign-extend values before subtracting for S, P (zero/sign extension
+         * does not matter there) L, LE and their inverses.
+         */
+        ot_full |= MO_SIGN;
+    }
+
+    /*
+     * cmpv will be moved to cc_src *after* cpu_regs[] is written back, so use
+     * tcg_gen_ext_tl instead of gen_ext_tl.
+     */
+    tcg_gen_ext_tl(cmpv, cpu_regs[decode->op[1].n], ot_full);
+
+    /*
+     * Cmpxchg loop starts here.
+     * - s->T1: addition operand (from decoder)
+     * - s->A0: dest address (from decoder)
+     * - s->cc_srcT: memory operand (lhs for comparison)
+     * - cmpv: rhs for comparison
+     */
+    gen_set_label(label_top);
+    gen_op_ld_v(s, ot_full, s->cc_srcT, s->A0);
+    tcg_gen_sub_tl(s->T0, s->cc_srcT, cmpv);
+
+    /* Compute the comparison result by hand, to avoid clobbering cc_*.  */
+    switch (jcc_op) {
+    case JCC_O:
+        /* (src1 ^ src2) & (src1 ^ dst). newv is only used here for a moment */
+        tcg_gen_xor_tl(newv, s->cc_srcT, s->T0);
+        tcg_gen_xor_tl(s->tmp0, s->cc_srcT, cmpv);
+        tcg_gen_and_tl(s->tmp0, s->tmp0, newv);
+        tcg_gen_sextract_tl(s->tmp0, s->tmp0, 0, 8 << ot);
+        cmp_lhs = s->tmp0, cmp_rhs = tcg_constant_tl(0);
+        break;
+
+    case JCC_P:
+        tcg_gen_ext8u_tl(s->tmp0, s->T0);
+        tcg_gen_ctpop_tl(s->tmp0, s->tmp0);
+        tcg_gen_andi_tl(s->tmp0, s->tmp0, 1);
+        cmp_lhs = s->tmp0, cmp_rhs = tcg_constant_tl(0);
+        break;
+
+    case JCC_S:
+        tcg_gen_sextract_tl(s->tmp0, s->T0, 0, 8 << ot);
+        cmp_lhs = s->tmp0, cmp_rhs = tcg_constant_tl(0);
+        break;
+
+    default:
+        cmp_lhs = s->cc_srcT, cmp_rhs = cmpv;
+        break;
+    }
+
+    /* Compute new value: if condition does not hold, just store back s->cc_srcT */
+    tcg_gen_add_tl(newv, s->cc_srcT, s->T1);
+    tcg_gen_movcond_tl(cond, newv, cmp_lhs, cmp_rhs, newv, s->cc_srcT);
+    tcg_gen_atomic_cmpxchg_tl(oldv, s->A0, s->cc_srcT, newv, s->mem_index, ot_full);
+
+    /* Exit unconditionally if cmpxchg succeeded.  */
+    tcg_gen_brcond_tl(TCG_COND_EQ, oldv, s->cc_srcT, label_bottom);
+
+    /* Try again if there was actually a store to make.  */
+    tcg_gen_brcond_tl(cond, cmp_lhs, cmp_rhs, label_top);
+    gen_set_label(label_bottom);
+
+    /* Store old value to registers only after a successful store.  */
+    gen_writeback(s, decode, 1, s->cc_srcT);
+
+    decode->cc_dst = s->T0;
+    decode->cc_src = cmpv;
+    decode->cc_op = CC_OP_SUBB + ot;
+}
+
 static void gen_CRC32(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     MemOp ot = decode->op[2].ot;
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index fe82d421576..e1eb82a5c68 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -122,6 +122,7 @@ typedef struct DisasContext {
     int cpuid_ext3_features;
     int cpuid_7_0_ebx_features;
     int cpuid_7_0_ecx_features;
+    int cpuid_7_1_eax_features;
     int cpuid_xsave_features;
 
     /* TCG local temps */
@@ -6963,6 +6964,7 @@ static void i386_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cpu)
     dc->cpuid_ext3_features = env->features[FEAT_8000_0001_ECX];
     dc->cpuid_7_0_ebx_features = env->features[FEAT_7_0_EBX];
     dc->cpuid_7_0_ecx_features = env->features[FEAT_7_0_ECX];
+    dc->cpuid_7_1_eax_features = env->features[FEAT_7_1_EAX];
     dc->cpuid_xsave_features = env->features[FEAT_XSAVE];
     dc->jmp_opt = !((cflags & CF_NO_GOTO_TB) ||
                     (flags & (HF_TF_MASK | HF_INHIBIT_IRQ_MASK)));
-- 
2.43.0

[PULL 23/46] target/i386: the sgx_epc_get_section stub is reachable

[Paolo Bonzini]

The sgx_epc_get_section stub is reachable from cpu_x86_cpuid.  It
should not assert, instead it should just return true just like
the "real" sgx_epc_get_section does when SGX is disabled.

Reported-by: Vladimír Beneš <vbenes@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20220201190941.106001-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/i386/sgx-stub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/sgx-stub.c b/hw/i386/sgx-stub.c
index 26833eb233c..16b1dfd90bb 100644
--- a/hw/i386/sgx-stub.c
+++ b/hw/i386/sgx-stub.c
@@ -34,5 +34,5 @@ void pc_machine_init_sgx_epc(PCMachineState *pcms)
 
 bool sgx_epc_get_section(int section_nr, uint64_t *addr, uint64_t *size)
 {
-    g_assert_not_reached();
+    return true;
 }
-- 
2.43.0

[PULL 24/46] esp: check for NULL result from scsi_device_find()

[Paolo Bonzini]

From: Alexandra Diupina <adiupina@astralinux.ru>

Add a 'current_lun' check for a null value
to avoid null pointer dereferencing and
recover host if NULL return

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 4eb8606560 (esp: store lun coming from the MESSAGE OUT phase)
Signed-off-by: Alexandra Diupina <adiupina@astralinux.ru>
Message-ID: <20231229152647.19699-1-adiupina@astralinux.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/scsi/esp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c
index 9b11d8c5738..d2cae79194c 100644
--- a/hw/scsi/esp.c
+++ b/hw/scsi/esp.c
@@ -292,6 +292,15 @@ static void do_command_phase(ESPState *s)
     esp_fifo_pop_buf(&s->cmdfifo, buf, cmdlen);
 
     current_lun = scsi_device_find(&s->bus, 0, s->current_dev->id, s->lun);
+    if (!current_lun) {
+        /* No such drive */
+        s->rregs[ESP_RSTAT] = 0;
+        s->rregs[ESP_RINTR] = INTR_DC;
+        s->rregs[ESP_RSEQ] = SEQ_0;
+        esp_raise_irq(s);
+        return;
+    }
+
     s->current_req = scsi_req_new(current_lun, 0, s->lun, buf, cmdlen, s);
     datalen = scsi_req_enqueue(s->current_req);
     s->ti_size = datalen;
-- 
2.43.0

[PULL 25/46] meson: fix type of "relocatable" option

[Paolo Bonzini]

Since the option is of boolean type, the default value should be a boolean
rather than a string.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson_options.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson_options.txt b/meson_options.txt
index c9baeda6395..0a99a059ec8 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -101,7 +101,7 @@ option('cfi_debug', type: 'boolean', value: false,
        description: 'Verbose errors in case of CFI violation')
 option('multiprocess', type: 'feature', value: 'auto',
        description: 'Out of process device emulation support')
-option('relocatable', type : 'boolean', value : 'true',
+option('relocatable', type : 'boolean', value : true,
        description: 'toggle relocatable install')
 option('vfio_user_server', type: 'feature', value: 'disabled',
        description: 'vfio-user server support')
-- 
2.43.0

[PULL 26/46] meson: remove unused variable

[Paolo Bonzini]

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 tests/bench/meson.build | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/bench/meson.build b/tests/bench/meson.build
index 3c799dbd983..7e76338a52d 100644
--- a/tests/bench/meson.build
+++ b/tests/bench/meson.build
@@ -3,9 +3,9 @@ qht_bench = executable('qht-bench',
                        sources: 'qht-bench.c',
                        dependencies: [qemuutil])
 
-qtree_bench = executable('qtree-bench',
-                         sources: 'qtree-bench.c',
-                         dependencies: [qemuutil])
+executable('qtree-bench',
+           sources: 'qtree-bench.c',
+           dependencies: [qemuutil])
 
 executable('atomic_add-bench',
            sources: files('atomic_add-bench.c'),
-- 
2.43.0

[PULL 27/46] meson: use version_compare() to compare version

[Paolo Bonzini]

While a simple lexicographic comparison usually works, it is less
robust than a more specific algorithm designed to compare versions.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 qga/meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/qga/meson.build b/qga/meson.build
index ff7a8496e48..a6af614891a 100644
--- a/qga/meson.build
+++ b/qga/meson.build
@@ -140,7 +140,7 @@ if targetos == 'windows'
       qemu_ga_msi_vss = ['-D', 'InstallVss']
       deps += qga_vss
     endif
-    if glib.version() < '2.73.2'
+    if glib.version().version_compare('<2.73.2')
       libpcre = 'libpcre1'
     else
       libpcre = 'libpcre2'
-- 
2.43.0

[PULL 28/46] Makefile: clean qemu-iotests output

[Paolo Bonzini]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 Makefile  | 1 +
 configure | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 676a4a54f48..8f369903356 100644
--- a/Makefile
+++ b/Makefile
@@ -202,6 +202,7 @@ clean: recurse-clean
 		! -path ./roms/edk2/ArmPkg/Library/GccLto/liblto-arm.a \
 		-exec rm {} +
 	rm -f TAGS cscope.* *~ */*~
+	@$(MAKE) -Ctests/qemu-iotests clean
 
 VERSION = $(shell cat $(SRC_PATH)/VERSION)
 
diff --git a/configure b/configure
index d7e0926ff19..9885cfed792 100755
--- a/configure
+++ b/configure
@@ -1559,7 +1559,7 @@ LINKS="$LINKS pc-bios/s390-ccw/Makefile"
 LINKS="$LINKS pc-bios/vof/Makefile"
 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
 LINKS="$LINKS tests/avocado tests/data"
-LINKS="$LINKS tests/qemu-iotests/check"
+LINKS="$LINKS tests/qemu-iotests/check tests/qemu-iotests/Makefile"
 LINKS="$LINKS python"
 LINKS="$LINKS contrib/plugins/Makefile "
 for f in $LINKS ; do
-- 
2.43.0

[PULL 29/46] configure: remove unnecessary subshell

[Paolo Bonzini]

Do not use a subshell to hide the shadowing of $config_host_mak.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/configure b/configure
index 9885cfed792..ed2d220040d 100755
--- a/configure
+++ b/configure
@@ -1671,10 +1671,9 @@ if test "$targetos" = windows; then
 fi
 
 # tests/tcg configuration
-(config_host_mak=tests/tcg/config-host.mak
 mkdir -p tests/tcg
-echo "# Automatically generated by configure - do not modify" > $config_host_mak
-echo "SRC_PATH=$source_path" >> $config_host_mak
+echo "# Automatically generated by configure - do not modify" > tests/tcg/$config_host_mak
+echo "SRC_PATH=$source_path" >> tests/tcg/$config_host_mak
 
 tcg_tests_targets=
 for target in $target_list; do
@@ -1717,9 +1716,8 @@ for target in $target_list; do
 done
 
 if test "$tcg" = "enabled"; then
-    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
+    echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> $config_host_mak
 fi
-)
 
 if test "$skip_meson" = no; then
   cross="config-meson.cross.new"
-- 
2.43.0

[PULL 30/46] configure: unify again the case arms in probe_target_compiler

[Paolo Bonzini]

Remove assignments that match the default, and group the
targets for debian-legacy-test-cross and debian-all-test-cross
into a single arm.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure | 87 ++++++++++++++++++-------------------------------------
 1 file changed, 28 insertions(+), 59 deletions(-)

diff --git a/configure b/configure
index ed2d220040d..0128fd30ea8 100755
--- a/configure
+++ b/configure
@@ -1231,6 +1231,7 @@ probe_target_compiler() {
   got_cross_cc=no
   container_image=
   container_hosts=
+  container_cross_prefix=
   container_cross_cc=
   container_cross_ar=
   container_cross_as=
@@ -1272,16 +1273,33 @@ probe_target_compiler() {
     test "$container" != no || continue
     test "$host" = "$cpu" || continue
     case $target_arch in
+      # debian-all-test-cross architectures
+
+      hppa|m68k|mips|riscv64|sparc64)
+        container_image=debian-all-test-cross
+        ;;
+      mips64)
+        container_image=debian-all-test-cross
+        container_cross_prefix=mips64-linux-gnuabi64-
+        ;;
+      ppc|ppc64|ppc64le)
+        container_image=debian-all-test-cross
+        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
+        ;;
+
+      # debian-legacy-test-cross architectures (need Debian 11)
+      # - libc6.1-dev-alpha-cross: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054412
+      # - sh4-linux-user: binaries don't run with bookworm compiler
+
+      alpha|sh4)
+        container_image=debian-legacy-test-cross
+        ;;
+
+      # architectures with individual containers
+
       aarch64)
         # We don't have any bigendian build tools so we only use this for AArch64
         container_image=debian-arm64-cross
-        container_cross_prefix=aarch64-linux-gnu-
-        container_cross_cc=${container_cross_prefix}gcc
-        ;;
-      alpha)
-        container_image=debian-legacy-test-cross
-        container_cross_prefix=alpha-linux-gnu-
-        container_cross_cc=${container_cross_prefix}gcc
         ;;
       arm)
         # We don't have any bigendian build tools so we only use this for ARM
@@ -1290,18 +1308,11 @@ probe_target_compiler() {
         ;;
       cris)
         container_image=fedora-cris-cross
-        container_cross_prefix=cris-linux-gnu-
         ;;
       hexagon)
-        container_image=debian-hexagon-cross
         container_cross_prefix=hexagon-unknown-linux-musl-
         container_cross_cc=${container_cross_prefix}clang
         ;;
-      hppa)
-        container_image=debian-all-test-cross
-        container_cross_prefix=hppa-linux-gnu-
-        container_cross_cc=${container_cross_prefix}gcc
-        ;;
       i386)
         container_image=debian-i686-cross
         container_cross_prefix=i686-linux-gnu-
@@ -1310,59 +1321,19 @@ probe_target_compiler() {
         container_image=debian-loongarch-cross
         container_cross_prefix=loongarch64-unknown-linux-gnu-
         ;;
-      m68k)
-        container_image=debian-all-test-cross
-        container_cross_prefix=m68k-linux-gnu-
-        container_cross_cc=${container_cross_prefix}gcc
-        ;;
       microblaze)
-        container_image=debian-microblaze-cross
         container_cross_prefix=microblaze-linux-musl-
         ;;
       mips64el)
         container_image=debian-mips64el-cross
         container_cross_prefix=mips64el-linux-gnuabi64-
         ;;
-      mips64)
-        container_image=debian-all-test-cross
-        container_cross_prefix=mips64-linux-gnuabi64-
-        ;;
-      mips)
-        container_image=debian-all-test-cross
-        container_cross_prefix=mips-linux-gnu-
-        ;;
-      nios2)
-        container_image=debian-nios2-cross
-        container_cross_prefix=nios2-linux-gnu-
-        ;;
-      ppc)
-        container_image=debian-all-test-cross
-        container_cross_prefix=powerpc-linux-gnu-
-        container_cross_cc=${container_cross_prefix}gcc
-        ;;
-      ppc64|ppc64le)
-        container_image=debian-all-test-cross
-        container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
-        ;;
-      riscv64)
-        container_image=debian-all-test-cross
-        container_cross_prefix=riscv64-linux-gnu-
-        ;;
-      sh4)
-        container_image=debian-legacy-test-cross
-        container_cross_prefix=sh4-linux-gnu-
-        ;;
-      sparc64)
-        container_image=debian-all-test-cross
-        container_cross_prefix=sparc64-linux-gnu-
-        ;;
       tricore)
         container_image=debian-tricore-cross
         container_cross_prefix=tricore-
         ;;
       x86_64)
         container_image=debian-amd64-cross
-        container_cross_prefix=x86_64-linux-gnu-
         ;;
       xtensa*)
         container_image=debian-xtensa-cross
@@ -1370,12 +1341,10 @@ probe_target_compiler() {
         # default to the dc232b cpu
         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
         ;;
-      *)
-        # Debian and GNU architecture names usually match
-        container_image=debian-$target_arch-cross
-        container_cross_prefix=$target_arch-linux-gnu-
-        ;;
     esac
+    # Debian and GNU architecture names usually match
+    : ${container_image:=debian-$target_arch-cross}
+    : ${container_cross_prefix:=$target_arch-linux-gnu-}
     : ${container_cross_cc:=${container_cross_prefix}gcc}
     : ${container_cross_ar:=${container_cross_prefix}ar}
     : ${container_cross_as:=${container_cross_prefix}as}
-- 
2.43.0

[PULL 31/46] meson: add more sections to main meson.build

[Paolo Bonzini]

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/meson.build b/meson.build
index 6c77d9687de..c437e9f55e6 100644
--- a/meson.build
+++ b/meson.build
@@ -9,6 +9,10 @@ add_test_setup('thorough', env: ['G_TEST_SLOW=1', 'SPEED=thorough'])
 
 meson.add_postconf_script(find_program('scripts/symlink-install-tree.py'))
 
+####################
+# Global variables #
+####################
+
 not_found = dependency('', required: false)
 keyval = import('keyval')
 ss = import('sourceset')
@@ -86,8 +90,16 @@ enable_modules = get_option('modules') \
   .allowed()
 have_block = have_system or have_tools
 
+############
+# Programs #
+############
+
 python = import('python').find_installation()
 
+#######################################
+# Variables for host and accelerators #
+#######################################
+
 if cpu not in supported_cpus
   host_arch = 'unknown'
 elif cpu == 'x86'
@@ -518,9 +530,9 @@ if sparse.found()
                        '-Wno-non-pointer-null'])
 endif
 
-###########################################
-# Target-specific checks and dependencies #
-###########################################
+#####################
+# Option validation #
+#####################
 
 # Fuzzing
 if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
@@ -3524,9 +3536,9 @@ specific_ss.add_all(when: 'CONFIG_TCG_BUILTIN', if_true: tcg_module_ss)
 target_modules += { 'accel' : { 'qtest': qtest_module_ss,
                                 'tcg': tcg_real_module_ss }}
 
-########################
-# Library dependencies #
-########################
+##############################################
+# Internal static_libraries and dependencies #
+##############################################
 
 modinfo_collect = find_program('scripts/modinfo-collect.py')
 modinfo_generate = find_program('scripts/modinfo-generate.py')
-- 
2.43.0

[PULL 32/46] meson: move program checks together

[Paolo Bonzini]

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 107 +++++++++++++++++++++++++++-------------------------
 1 file changed, 56 insertions(+), 51 deletions(-)

diff --git a/meson.build b/meson.build
index c437e9f55e6..3a1f4cbb90f 100644
--- a/meson.build
+++ b/meson.build
@@ -19,21 +19,8 @@ ss = import('sourceset')
 fs = import('fs')
 
 targetos = host_machine.system()
-sh = find_program('sh')
 config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
 
-cc = meson.get_compiler('c')
-all_languages = ['c']
-if targetos == 'windows' and add_languages('cpp', required: false, native: false)
-  all_languages += ['cpp']
-  cxx = meson.get_compiler('cpp')
-endif
-if targetos == 'darwin' and \
-   add_languages('objc', required: get_option('cocoa'), native: false)
-  all_languages += ['objc']
-  objc = meson.get_compiler('objc')
-endif
-
 # Temporary directory used for files created while
 # configure runs. Since it is in the build directory
 # we can safely blow away any previous version of it
@@ -65,6 +52,62 @@ supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv32', 'riscv64', 'x86', 'x86_64'
 cpu = host_machine.cpu_family()
 
 target_dirs = config_host['TARGET_DIRS'].split()
+
+############
+# Programs #
+############
+
+sh = find_program('sh')
+python = import('python').find_installation()
+
+cc = meson.get_compiler('c')
+all_languages = ['c']
+if targetos == 'windows' and add_languages('cpp', required: false, native: false)
+  all_languages += ['cpp']
+  cxx = meson.get_compiler('cpp')
+endif
+if targetos == 'darwin' and \
+   add_languages('objc', required: get_option('cocoa'), native: false)
+  all_languages += ['objc']
+  objc = meson.get_compiler('objc')
+endif
+
+dtrace = not_found
+stap = not_found
+if 'dtrace' in get_option('trace_backends')
+  dtrace = find_program('dtrace', required: true)
+  stap = find_program('stap', required: false)
+  if stap.found()
+    # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
+    # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
+    # instead. QEMU --enable-modules depends on this because the SystemTap
+    # semaphores are linked into the main binary and not the module's shared
+    # object.
+    add_global_arguments('-DSTAP_SDT_V2',
+                         native: false, language: all_languages)
+  endif
+endif
+
+if get_option('iasl') == ''
+  iasl = find_program('iasl', required: false)
+else
+  iasl = find_program(get_option('iasl'), required: true)
+endif
+
+edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
+unpack_edk2_blobs = false
+foreach target : edk2_targets
+  if target in target_dirs
+    bzip2 = find_program('bzip2', required: get_option('install_blobs'))
+    unpack_edk2_blobs = bzip2.found()
+    break
+  endif
+endforeach
+
+#####################
+# Option validation #
+#####################
+
 have_linux_user = false
 have_bsd_user = false
 have_system = false
@@ -90,12 +133,6 @@ enable_modules = get_option('modules') \
   .allowed()
 have_block = have_system or have_tools
 
-############
-# Programs #
-############
-
-python = import('python').find_installation()
-
 #######################################
 # Variables for host and accelerators #
 #######################################
@@ -167,38 +204,6 @@ if targetos != 'darwin'
   modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
 endif
 
-edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 'x86_64-softmmu' ]
-unpack_edk2_blobs = false
-foreach target : edk2_targets
-  if target in target_dirs
-    bzip2 = find_program('bzip2', required: get_option('install_blobs'))
-    unpack_edk2_blobs = bzip2.found()
-    break
-  endif
-endforeach
-
-dtrace = not_found
-stap = not_found
-if 'dtrace' in get_option('trace_backends')
-  dtrace = find_program('dtrace', required: true)
-  stap = find_program('stap', required: false)
-  if stap.found()
-    # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
-    # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
-    # instead. QEMU --enable-modules depends on this because the SystemTap
-    # semaphores are linked into the main binary and not the module's shared
-    # object.
-    add_global_arguments('-DSTAP_SDT_V2',
-                         native: false, language: all_languages)
-  endif
-endif
-
-if get_option('iasl') == ''
-  iasl = find_program('iasl', required: false)
-else
-  iasl = find_program(get_option('iasl'), required: true)
-endif
-
 ##################
 # Compiler flags #
 ##################
-- 
2.43.0

[PULL 33/46] meson: move option validation together

[Paolo Bonzini]

Check options before compiler flags, because some compiler flags are
incompatible with modules.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 137 ++++++++++++++++++++++++++--------------------------
 1 file changed, 68 insertions(+), 69 deletions(-)

diff --git a/meson.build b/meson.build
index 3a1f4cbb90f..2c6f09352c9 100644
--- a/meson.build
+++ b/meson.build
@@ -108,6 +108,71 @@ endforeach
 # Option validation #
 #####################
 
+# Fuzzing
+if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
+    not cc.links('''
+          #include <stdint.h>
+          #include <sys/types.h>
+          int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
+          int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
+        ''',
+        args: ['-Werror', '-fsanitize=fuzzer'])
+  error('Your compiler does not support -fsanitize=fuzzer')
+endif
+
+# Tracing backends
+if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
+  error('ftrace is supported only on Linux')
+endif
+if 'syslog' in get_option('trace_backends') and not cc.compiles('''
+    #include <syslog.h>
+    int main(void) {
+        openlog("qemu", LOG_PID, LOG_DAEMON);
+        syslog(LOG_INFO, "configure");
+        return 0;
+    }''')
+  error('syslog is not supported on this system')
+endif
+
+# Miscellaneous Linux-only features
+get_option('mpath') \
+  .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
+
+multiprocess_allowed = get_option('multiprocess') \
+  .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
+  .allowed()
+
+vfio_user_server_allowed = get_option('vfio_user_server') \
+  .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
+  .allowed()
+
+have_tpm = get_option('tpm') \
+  .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
+  .allowed()
+
+# vhost
+have_vhost_user = get_option('vhost_user') \
+  .disable_auto_if(targetos != 'linux') \
+  .require(targetos != 'windows',
+           error_message: 'vhost-user is not available on Windows').allowed()
+have_vhost_vdpa = get_option('vhost_vdpa') \
+  .require(targetos == 'linux',
+           error_message: 'vhost-vdpa is only available on Linux').allowed()
+have_vhost_kernel = get_option('vhost_kernel') \
+  .require(targetos == 'linux',
+           error_message: 'vhost-kernel is only available on Linux').allowed()
+have_vhost_user_crypto = get_option('vhost_crypto') \
+  .require(have_vhost_user,
+           error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
+
+have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
+
+have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
+have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
+have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
+have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
+
+# type of binaries to build
 have_linux_user = false
 have_bsd_user = false
 have_system = false
@@ -117,6 +182,7 @@ foreach target : target_dirs
   have_system = have_system or target.endswith('-softmmu')
 endforeach
 have_user = have_linux_user or have_bsd_user
+
 have_tools = get_option('tools') \
   .disable_auto_if(not have_system) \
   .allowed()
@@ -125,13 +191,14 @@ have_ga = get_option('guest_agent') \
   .require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
            error_message: 'unsupported OS for QEMU guest agent') \
   .allowed()
+have_block = have_system or have_tools
+
 enable_modules = get_option('modules') \
   .require(targetos != 'windows',
            error_message: 'Modules are not available for Windows') \
   .require(not get_option('prefer_static'),
            error_message: 'Modules are incompatible with static linking') \
   .allowed()
-have_block = have_system or have_tools
 
 #######################################
 # Variables for host and accelerators #
@@ -535,74 +602,6 @@ if sparse.found()
                        '-Wno-non-pointer-null'])
 endif
 
-#####################
-# Option validation #
-#####################
-
-# Fuzzing
-if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
-    not cc.links('''
-          #include <stdint.h>
-          #include <sys/types.h>
-          int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
-          int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
-        ''',
-        args: ['-Werror', '-fsanitize=fuzzer'])
-  error('Your compiler does not support -fsanitize=fuzzer')
-endif
-
-# Tracing backends
-if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
-  error('ftrace is supported only on Linux')
-endif
-if 'syslog' in get_option('trace_backends') and not cc.compiles('''
-    #include <syslog.h>
-    int main(void) {
-        openlog("qemu", LOG_PID, LOG_DAEMON);
-        syslog(LOG_INFO, "configure");
-        return 0;
-    }''')
-  error('syslog is not supported on this system')
-endif
-
-# Miscellaneous Linux-only features
-get_option('mpath') \
-  .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
-
-multiprocess_allowed = get_option('multiprocess') \
-  .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
-  .allowed()
-
-vfio_user_server_allowed = get_option('vfio_user_server') \
-  .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
-  .allowed()
-
-have_tpm = get_option('tpm') \
-  .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
-  .allowed()
-
-# vhost
-have_vhost_user = get_option('vhost_user') \
-  .disable_auto_if(targetos != 'linux') \
-  .require(targetos != 'windows',
-           error_message: 'vhost-user is not available on Windows').allowed()
-have_vhost_vdpa = get_option('vhost_vdpa') \
-  .require(targetos == 'linux',
-           error_message: 'vhost-vdpa is only available on Linux').allowed()
-have_vhost_kernel = get_option('vhost_kernel') \
-  .require(targetos == 'linux',
-           error_message: 'vhost-kernel is only available on Linux').allowed()
-have_vhost_user_crypto = get_option('vhost_crypto') \
-  .require(have_vhost_user,
-           error_message: 'vhost-crypto requires vhost-user to be enabled').allowed()
-
-have_vhost = have_vhost_user or have_vhost_vdpa or have_vhost_kernel
-
-have_vhost_net_user = have_vhost_user and get_option('vhost_net').allowed()
-have_vhost_net_vdpa = have_vhost_vdpa and get_option('vhost_net').allowed()
-have_vhost_net_kernel = have_vhost_kernel and get_option('vhost_net').allowed()
-have_vhost_net = have_vhost_net_kernel or have_vhost_net_user or have_vhost_net_vdpa
-
 # Target-specific libraries and flags
 libm = cc.find_library('m', required: false)
 threads = dependency('threads')
-- 
2.43.0

[PULL 34/46] meson: move accelerator dependency checks together

[Paolo Bonzini]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 175 +++++++++++++++++++++++++++-------------------------
 1 file changed, 91 insertions(+), 84 deletions(-)

diff --git a/meson.build b/meson.build
index 2c6f09352c9..1867e0428b1 100644
--- a/meson.build
+++ b/meson.build
@@ -602,7 +602,10 @@ if sparse.found()
                        '-Wno-non-pointer-null'])
 endif
 
-# Target-specific libraries and flags
+#####################################
+# Host-specific libraries and flags #
+#####################################
+
 libm = cc.find_library('m', required: false)
 threads = dependency('threads')
 util = cc.find_library('util', required: false)
@@ -612,8 +615,6 @@ version_res = []
 coref = []
 iokit = []
 emulator_link_args = []
-nvmm =not_found
-hvf = not_found
 midl = not_found
 widl = not_found
 pathcch = not_found
@@ -649,7 +650,10 @@ elif targetos == 'openbsd'
   endif
 endif
 
-# Target-specific configuration of accelerators
+###############################################
+# Host-specific configuration of accelerators #
+###############################################
+
 accelerators = []
 if get_option('kvm').allowed() and targetos == 'linux'
   accelerators += 'CONFIG_KVM'
@@ -662,6 +666,8 @@ if get_option('whpx').allowed() and targetos == 'windows'
     accelerators += 'CONFIG_WHPX'
   endif
 endif
+
+hvf = not_found
 if get_option('hvf').allowed()
   hvf = dependency('appleframeworks', modules: 'Hypervisor',
                    required: get_option('hvf'))
@@ -669,6 +675,8 @@ if get_option('hvf').allowed()
     accelerators += 'CONFIG_HVF'
   endif
 endif
+
+nvmm = not_found
 if targetos == 'netbsd'
   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
   if nvmm.found()
@@ -716,6 +724,85 @@ if 'CONFIG_WHPX' not in accelerators and get_option('whpx').enabled()
   error('WHPX not available on this platform')
 endif
 
+xen = not_found
+if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
+  xencontrol = dependency('xencontrol', required: false,
+                          method: 'pkg-config')
+  if xencontrol.found()
+    xen_pc = declare_dependency(version: xencontrol.version(),
+      dependencies: [
+        xencontrol,
+        # disabler: true makes xen_pc.found() return false if any is not found
+        dependency('xenstore', required: false,
+                   method: 'pkg-config',
+                   disabler: true),
+        dependency('xenforeignmemory', required: false,
+                   method: 'pkg-config',
+                   disabler: true),
+        dependency('xengnttab', required: false,
+                   method: 'pkg-config',
+                   disabler: true),
+        dependency('xenevtchn', required: false,
+                   method: 'pkg-config',
+                   disabler: true),
+        dependency('xendevicemodel', required: false,
+                   method: 'pkg-config',
+                   disabler: true),
+        # optional, no "disabler: true"
+        dependency('xentoolcore', required: false,
+                   method: 'pkg-config')])
+    if xen_pc.found()
+      xen = xen_pc
+    endif
+  endif
+  if not xen.found()
+    xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
+    xen_libs = {
+      '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
+      '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
+      '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
+      '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
+      '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
+    }
+    xen_deps = {}
+    foreach ver: xen_tests
+      # cache the various library tests to avoid polluting the logs
+      xen_test_deps = []
+      foreach l: xen_libs[ver]
+        if l not in xen_deps
+          xen_deps += { l: cc.find_library(l, required: false) }
+        endif
+        xen_test_deps += xen_deps[l]
+      endforeach
+
+      # Use -D to pick just one of the test programs in scripts/xen-detect.c
+      xen_version = ver.split('.')
+      xen_ctrl_version = xen_version[0] + \
+        ('0' + xen_version[1]).substring(-2) + \
+        ('0' + xen_version[2]).substring(-2)
+      if cc.links(files('scripts/xen-detect.c'),
+                  args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
+                  dependencies: xen_test_deps)
+        xen = declare_dependency(version: ver, dependencies: xen_test_deps)
+        break
+      endif
+    endforeach
+  endif
+  if xen.found()
+    accelerators += 'CONFIG_XEN'
+  elif get_option('xen').enabled()
+    error('could not compile and link Xen test program')
+  endif
+endif
+have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
+  .require(xen.found(),
+           error_message: 'Xen PCI passthrough requested but Xen not enabled') \
+  .require(targetos == 'linux',
+           error_message: 'Xen PCI passthrough not available on this platform') \
+  .require(cpu == 'x86'  or cpu == 'x86_64',
+           error_message: 'Xen PCI passthrough not available on this platform') \
+  .allowed()
+
 ################
 # Dependencies #
 ################
@@ -1689,86 +1776,6 @@ if not get_option('rdma').auto() or have_system
   endforeach
 endif
 
-xen = not_found
-if get_option('xen').enabled() or (get_option('xen').auto() and have_system)
-  xencontrol = dependency('xencontrol', required: false,
-                          method: 'pkg-config')
-  if xencontrol.found()
-    xen_pc = declare_dependency(version: xencontrol.version(),
-      dependencies: [
-        xencontrol,
-        # disabler: true makes xen_pc.found() return false if any is not found
-        dependency('xenstore', required: false,
-                   method: 'pkg-config',
-                   disabler: true),
-        dependency('xenforeignmemory', required: false,
-                   method: 'pkg-config',
-                   disabler: true),
-        dependency('xengnttab', required: false,
-                   method: 'pkg-config',
-                   disabler: true),
-        dependency('xenevtchn', required: false,
-                   method: 'pkg-config',
-                   disabler: true),
-        dependency('xendevicemodel', required: false,
-                   method: 'pkg-config',
-                   disabler: true),
-        # optional, no "disabler: true"
-        dependency('xentoolcore', required: false,
-                   method: 'pkg-config')])
-    if xen_pc.found()
-      xen = xen_pc
-    endif
-  endif
-  if not xen.found()
-    xen_tests = [ '4.11.0', '4.10.0', '4.9.0', '4.8.0', '4.7.1' ]
-    xen_libs = {
-      '4.11.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
-      '4.10.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn', 'xentoolcore' ],
-      '4.9.0': [ 'xenstore', 'xenctrl', 'xendevicemodel', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
-      '4.8.0': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
-      '4.7.1': [ 'xenstore', 'xenctrl', 'xenforeignmemory', 'xengnttab', 'xenevtchn' ],
-    }
-    xen_deps = {}
-    foreach ver: xen_tests
-      # cache the various library tests to avoid polluting the logs
-      xen_test_deps = []
-      foreach l: xen_libs[ver]
-        if l not in xen_deps
-          xen_deps += { l: cc.find_library(l, required: false) }
-        endif
-        xen_test_deps += xen_deps[l]
-      endforeach
-
-      # Use -D to pick just one of the test programs in scripts/xen-detect.c
-      xen_version = ver.split('.')
-      xen_ctrl_version = xen_version[0] + \
-        ('0' + xen_version[1]).substring(-2) + \
-        ('0' + xen_version[2]).substring(-2)
-      if cc.links(files('scripts/xen-detect.c'),
-                  args: '-DCONFIG_XEN_CTRL_INTERFACE_VERSION=' + xen_ctrl_version,
-                  dependencies: xen_test_deps)
-        xen = declare_dependency(version: ver, dependencies: xen_test_deps)
-        break
-      endif
-    endforeach
-  endif
-  if xen.found()
-    accelerators += 'CONFIG_XEN'
-  elif get_option('xen').enabled()
-    error('could not compile and link Xen test program')
-  endif
-endif
-have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
-  .require(xen.found(),
-           error_message: 'Xen PCI passthrough requested but Xen not enabled') \
-  .require(targetos == 'linux',
-           error_message: 'Xen PCI passthrough not available on this platform') \
-  .require(cpu == 'x86'  or cpu == 'x86_64',
-           error_message: 'Xen PCI passthrough not available on this platform') \
-  .allowed()
-
-
 cacard = not_found
 if not get_option('smartcard').auto() or have_system
   cacard = dependency('libcacard', required: get_option('smartcard'),
-- 
2.43.0

[PULL 35/46] meson: keep subprojects together

[Paolo Bonzini]

And move away dependencies that are not subprojects anymore.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 72 ++++++++++++++++++++++++++---------------------------
 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/meson.build b/meson.build
index 1867e0428b1..efb36c762e9 100644
--- a/meson.build
+++ b/meson.build
@@ -1622,6 +1622,25 @@ if not gnutls_crypto.found()
   endif
 endif
 
+capstone = not_found
+if not get_option('capstone').auto() or have_system or have_user
+  capstone = dependency('capstone', version: '>=3.0.5',
+                        method: 'pkg-config',
+                        required: get_option('capstone'))
+
+  # Some versions of capstone have broken pkg-config file
+  # that reports a wrong -I path, causing the #include to
+  # fail later. If the system has such a broken version
+  # do not use it.
+  if capstone.found() and not cc.compiles('#include <capstone.h>',
+                                          dependencies: [capstone])
+    capstone = not_found
+    if get_option('capstone').enabled()
+      error('capstone requested, but it does not appear to work')
+    endif
+  endif
+endif
+
 gmp = dependency('gmp', required: false, method: 'pkg-config')
 if nettle.found() and gmp.found()
   hogweed = dependency('hogweed', version: '>=3.4',
@@ -2127,6 +2146,7 @@ config_host_data.set('CONFIG_ATTR', libattr.found())
 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
 config_host_data.set('CONFIG_BSD', targetos in bsd_oses)
+config_host_data.set('CONFIG_CAPSTONE', capstone.found())
 config_host_data.set('CONFIG_COCOA', cocoa.found())
 config_host_data.set('CONFIG_DARWIN', targetos == 'darwin')
 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
@@ -2190,6 +2210,7 @@ if seccomp.found()
   config_host_data.set('CONFIG_SECCOMP_SYSRAWRC', seccomp_has_sysrawrc)
 endif
 config_host_data.set('CONFIG_PIXMAN', pixman.found())
+config_host_data.set('CONFIG_SLIRP', slirp.found())
 config_host_data.set('CONFIG_SNAPPY', snappy.found())
 config_host_data.set('CONFIG_SOLARIS', targetos == 'sunos')
 if get_option('tcg').allowed()
@@ -3093,28 +3114,9 @@ genh += custom_target('config-poison.h',
                       command: [find_program('scripts/make-config-poison.sh'),
                                 target_configs_h])
 
-##############
-# Submodules #
-##############
-
-capstone = not_found
-if not get_option('capstone').auto() or have_system or have_user
-  capstone = dependency('capstone', version: '>=3.0.5',
-                        method: 'pkg-config',
-                        required: get_option('capstone'))
-
-  # Some versions of capstone have broken pkg-config file
-  # that reports a wrong -I path, causing the #include to
-  # fail later. If the system has such a broken version
-  # do not use it.
-  if capstone.found() and not cc.compiles('#include <capstone.h>',
-                                          dependencies: [capstone])
-    capstone = not_found
-    if get_option('capstone').enabled()
-      error('capstone requested, but it does not appear to work')
-    endif
-  endif
-endif
+###############
+# Subprojects #
+###############
 
 libvfio_user_dep = not_found
 if have_system and vfio_user_server_allowed
@@ -3158,9 +3160,19 @@ else
   fdt_opt = 'disabled'
 endif
 
-config_host_data.set('CONFIG_CAPSTONE', capstone.found())
 config_host_data.set('CONFIG_FDT', fdt.found())
-config_host_data.set('CONFIG_SLIRP', slirp.found())
+
+vhost_user = not_found
+if targetos == 'linux' and have_vhost_user
+  libvhost_user = subproject('libvhost-user')
+  vhost_user = libvhost_user.get_variable('vhost_user_dep')
+endif
+
+libvduse = not_found
+if have_libvduse
+  libvduse_proj = subproject('libvduse')
+  libvduse = libvduse_proj.get_variable('libvduse_dep')
+endif
 
 #####################
 # Generated sources #
@@ -3391,18 +3403,6 @@ if have_system or have_user
   ]
 endif
 
-vhost_user = not_found
-if targetos == 'linux' and have_vhost_user
-  libvhost_user = subproject('libvhost-user')
-  vhost_user = libvhost_user.get_variable('vhost_user_dep')
-endif
-
-libvduse = not_found
-if have_libvduse
-  libvduse_proj = subproject('libvduse')
-  libvduse = libvduse_proj.get_variable('libvduse_dep')
-endif
-
 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
 # that is filled in by qapi/.
 subdir('qapi')
-- 
2.43.0

[PULL 36/46] meson: move CFI detection code with other compiler flags

[Paolo Bonzini]

Keep it together with the other compiler modes, and before dependencies.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 80 ++++++++++++++++++++++++++---------------------------
 1 file changed, 40 insertions(+), 40 deletions(-)

diff --git a/meson.build b/meson.build
index efb36c762e9..5c54441a3cd 100644
--- a/meson.build
+++ b/meson.build
@@ -517,6 +517,46 @@ if get_option('fuzzing')
   endif
 endif
 
+if get_option('cfi')
+  cfi_flags=[]
+  # Check for dependency on LTO
+  if not get_option('b_lto')
+    error('Selected Control-Flow Integrity but LTO is disabled')
+  endif
+  if enable_modules
+    error('Selected Control-Flow Integrity is not compatible with modules')
+  endif
+  # Check for cfi flags. CFI requires LTO so we can't use
+  # get_supported_arguments, but need a more complex "compiles" which allows
+  # custom arguments
+  if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
+                 args: ['-flto', '-fsanitize=cfi-icall'] )
+    cfi_flags += '-fsanitize=cfi-icall'
+  else
+    error('-fsanitize=cfi-icall is not supported by the compiler')
+  endif
+  if cc.compiles('int main () { return 0; }',
+                 name: '-fsanitize-cfi-icall-generalize-pointers',
+                 args: ['-flto', '-fsanitize=cfi-icall',
+                        '-fsanitize-cfi-icall-generalize-pointers'] )
+    cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
+  else
+    error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
+  endif
+  if get_option('cfi_debug')
+    if cc.compiles('int main () { return 0; }',
+                   name: '-fno-sanitize-trap=cfi-icall',
+                   args: ['-flto', '-fsanitize=cfi-icall',
+                          '-fno-sanitize-trap=cfi-icall'] )
+      cfi_flags += '-fno-sanitize-trap=cfi-icall'
+    else
+      error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
+    endif
+  endif
+  add_global_arguments(cfi_flags, native: false, language: all_languages)
+  add_global_link_arguments(cfi_flags, native: false, language: all_languages)
+endif
+
 add_global_arguments(qemu_common_flags, native: false, language: all_languages)
 add_global_link_arguments(qemu_ldflags, native: false, language: all_languages)
 
@@ -2009,46 +2049,6 @@ endif
 config_host_data.set('CONFIG_AUDIO_DRIVERS',
                      '"' + '", "'.join(audio_drivers_selected) + '", ')
 
-if get_option('cfi')
-  cfi_flags=[]
-  # Check for dependency on LTO
-  if not get_option('b_lto')
-    error('Selected Control-Flow Integrity but LTO is disabled')
-  endif
-  if enable_modules
-    error('Selected Control-Flow Integrity is not compatible with modules')
-  endif
-  # Check for cfi flags. CFI requires LTO so we can't use
-  # get_supported_arguments, but need a more complex "compiles" which allows
-  # custom arguments
-  if cc.compiles('int main () { return 0; }', name: '-fsanitize=cfi-icall',
-                 args: ['-flto', '-fsanitize=cfi-icall'] )
-    cfi_flags += '-fsanitize=cfi-icall'
-  else
-    error('-fsanitize=cfi-icall is not supported by the compiler')
-  endif
-  if cc.compiles('int main () { return 0; }',
-                 name: '-fsanitize-cfi-icall-generalize-pointers',
-                 args: ['-flto', '-fsanitize=cfi-icall',
-                        '-fsanitize-cfi-icall-generalize-pointers'] )
-    cfi_flags += '-fsanitize-cfi-icall-generalize-pointers'
-  else
-    error('-fsanitize-cfi-icall-generalize-pointers is not supported by the compiler')
-  endif
-  if get_option('cfi_debug')
-    if cc.compiles('int main () { return 0; }',
-                   name: '-fno-sanitize-trap=cfi-icall',
-                   args: ['-flto', '-fsanitize=cfi-icall',
-                          '-fno-sanitize-trap=cfi-icall'] )
-      cfi_flags += '-fno-sanitize-trap=cfi-icall'
-    else
-      error('-fno-sanitize-trap=cfi-icall is not supported by the compiler')
-    endif
-  endif
-  add_global_arguments(cfi_flags, native: false, language: all_languages)
-  add_global_link_arguments(cfi_flags, native: false, language: all_languages)
-endif
-
 have_host_block_device = (targetos != 'darwin' or
     cc.has_header('IOKit/storage/IOMedia.h'))
 
-- 
2.43.0

[PULL 37/46] meson: move config-host.h definitions together

[Paolo Bonzini]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/meson.build b/meson.build
index 5c54441a3cd..151db21c038 100644
--- a/meson.build
+++ b/meson.build
@@ -40,7 +40,6 @@ qemu_moddir = get_option('libdir') / get_option('qemu_suffix')
 qemu_desktopdir = get_option('datadir') / 'applications'
 qemu_icondir = get_option('datadir') / 'icons'
 
-config_host_data = configuration_data()
 genh = []
 qapi_trace_events = []
 
@@ -233,12 +232,6 @@ elif cpu in ['riscv64']
 else
   kvm_targets = []
 endif
-
-kvm_targets_c = '""'
-if get_option('kvm').allowed() and targetos == 'linux'
-  kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
-endif
-config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
 accelerator_targets = { 'CONFIG_KVM': kvm_targets }
 
 if cpu in ['x86', 'x86_64']
@@ -1191,12 +1184,6 @@ if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
   virgl = dependency('virglrenderer',
                      method: 'pkg-config',
                      required: get_option('virglrenderer'))
-  if virgl.found()
-    config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
-                         cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
-                                       prefix: '#include <virglrenderer.h>',
-                                       dependencies: virgl))
-  endif
 endif
 rutabaga = not_found
 if not get_option('rutabaga_gfx').auto() or have_system or have_vhost_user_gpu
@@ -2008,6 +1995,8 @@ endif
 # config-host.h #
 #################
 
+config_host_data = configuration_data()
+
 audio_drivers_selected = []
 if have_system
   audio_drivers_available = {
@@ -2137,6 +2126,12 @@ endif
 
 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
 
+kvm_targets_c = '""'
+if get_option('kvm').allowed() and targetos == 'linux'
+  kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
+endif
+config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
+
 if get_option('module_upgrades') and not enable_modules
   error('Cannot enable module-upgrades as modules are not enabled')
 endif
@@ -2236,6 +2231,12 @@ config_host_data.set('CONFIG_PNG', png.found())
 config_host_data.set('CONFIG_VNC', vnc.found())
 config_host_data.set('CONFIG_VNC_JPEG', jpeg.found())
 config_host_data.set('CONFIG_VNC_SASL', sasl.found())
+if virgl.found()
+  config_host_data.set('HAVE_VIRGL_D3D_INFO_EXT',
+                       cc.has_member('struct virgl_renderer_resource_info_ext', 'd3d_tex2d',
+                                     prefix: '#include <virglrenderer.h>',
+                                     dependencies: virgl))
+endif
 config_host_data.set('CONFIG_VIRTFS', have_virtfs)
 config_host_data.set('CONFIG_VTE', vte.found())
 config_host_data.set('CONFIG_XKBCOMMON', xkbcommon.found())
-- 
2.43.0

[PULL 38/46] meson: move subdirs to "Collect sources" section

[Paolo Bonzini]

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 66 ++++++++++++++++++++++++++---------------------------
 1 file changed, 33 insertions(+), 33 deletions(-)

diff --git a/meson.build b/meson.build
index 151db21c038..21335055ef8 100644
--- a/meson.build
+++ b/meson.build
@@ -3257,39 +3257,6 @@ foreach d : hx_headers
 endforeach
 genh += hxdep
 
-###################
-# Collect sources #
-###################
-
-authz_ss = ss.source_set()
-blockdev_ss = ss.source_set()
-block_ss = ss.source_set()
-chardev_ss = ss.source_set()
-common_ss = ss.source_set()
-crypto_ss = ss.source_set()
-hwcore_ss = ss.source_set()
-io_ss = ss.source_set()
-qmp_ss = ss.source_set()
-qom_ss = ss.source_set()
-system_ss = ss.source_set()
-specific_fuzz_ss = ss.source_set()
-specific_ss = ss.source_set()
-stub_ss = ss.source_set()
-trace_ss = ss.source_set()
-user_ss = ss.source_set()
-util_ss = ss.source_set()
-
-# accel modules
-qtest_module_ss = ss.source_set()
-tcg_module_ss = ss.source_set()
-
-modules = {}
-target_modules = {}
-hw_arch = {}
-target_arch = {}
-target_system_arch = {}
-target_user_arch = {}
-
 ###############
 # Trace files #
 ###############
@@ -3404,6 +3371,39 @@ if have_system or have_user
   ]
 endif
 
+###################
+# Collect sources #
+###################
+
+authz_ss = ss.source_set()
+blockdev_ss = ss.source_set()
+block_ss = ss.source_set()
+chardev_ss = ss.source_set()
+common_ss = ss.source_set()
+crypto_ss = ss.source_set()
+hwcore_ss = ss.source_set()
+io_ss = ss.source_set()
+qmp_ss = ss.source_set()
+qom_ss = ss.source_set()
+system_ss = ss.source_set()
+specific_fuzz_ss = ss.source_set()
+specific_ss = ss.source_set()
+stub_ss = ss.source_set()
+trace_ss = ss.source_set()
+user_ss = ss.source_set()
+util_ss = ss.source_set()
+
+# accel modules
+qtest_module_ss = ss.source_set()
+tcg_module_ss = ss.source_set()
+
+modules = {}
+target_modules = {}
+hw_arch = {}
+target_arch = {}
+target_system_arch = {}
+target_user_arch = {}
+
 # NOTE: the trace/ subdirectory needs the qapi_trace_events variable
 # that is filled in by qapi/.
 subdir('qapi')
-- 
2.43.0

[PULL 39/46] meson: always probe u2f and canokey if the option is enabled

[Paolo Bonzini]

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/meson.build b/meson.build
index 21335055ef8..7344e363826 100644
--- a/meson.build
+++ b/meson.build
@@ -1828,12 +1828,12 @@ if not get_option('smartcard').auto() or have_system
                       version: '>=2.5.1', method: 'pkg-config')
 endif
 u2f = not_found
-if have_system
+if not get_option('u2f').auto() or have_system
   u2f = dependency('u2f-emu', required: get_option('u2f'),
                    method: 'pkg-config')
 endif
 canokey = not_found
-if have_system
+if not get_option('canokey').auto() or have_system
   canokey = dependency('canokey-qemu', required: get_option('canokey'),
                    method: 'pkg-config')
 endif
-- 
2.43.0

[PULL 40/46] meson: remove OS definitions from config_targetos

[Paolo Bonzini]

CONFIG_DARWIN, CONFIG_LINUX and CONFIG_BSD are used in some rules, but
only CONFIG_LINUX has substantial use.  Convert them all to if...endif.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 accel/tcg/meson.build  |  4 +++-
 backends/meson.build   |  4 +++-
 block/meson.build      |  4 +++-
 fsdev/meson.build      |  5 +++--
 hw/9pfs/meson.build    |  7 +++++--
 hw/display/meson.build |  7 +++++--
 hw/ppc/meson.build     |  8 +++++---
 hw/usb/meson.build     |  4 +++-
 meson.build            |  8 --------
 net/can/meson.build    |  4 +++-
 qga/meson.build        | 11 +++++------
 scsi/meson.build       |  8 +++++---
 system/meson.build     |  4 +++-
 ui/meson.build         |  7 +++----
 util/meson.build       | 14 ++++++++------
 15 files changed, 57 insertions(+), 42 deletions(-)

diff --git a/accel/tcg/meson.build b/accel/tcg/meson.build
index 8783edd06ee..1dad6bbbfbd 100644
--- a/accel/tcg/meson.build
+++ b/accel/tcg/meson.build
@@ -17,7 +17,9 @@ if get_option('plugins')
   tcg_ss.add(files('plugin-gen.c'))
 endif
 tcg_ss.add(when: libdw, if_true: files('debuginfo.c'))
-tcg_ss.add(when: 'CONFIG_LINUX', if_true: files('perf.c'))
+if targetos == 'linux'
+  tcg_ss.add(files('perf.c'))
+endif
 specific_ss.add_all(when: 'CONFIG_TCG', if_true: tcg_ss)
 
 specific_ss.add(when: ['CONFIG_SYSTEM_ONLY', 'CONFIG_TCG'], if_true: files(
diff --git a/backends/meson.build b/backends/meson.build
index 9a5cea480d1..248ce4923c6 100644
--- a/backends/meson.build
+++ b/backends/meson.build
@@ -12,7 +12,9 @@ system_ss.add([files(
 
 system_ss.add(when: 'CONFIG_POSIX', if_true: files('rng-random.c'))
 system_ss.add(when: 'CONFIG_POSIX', if_true: files('hostmem-file.c'))
-system_ss.add(when: 'CONFIG_LINUX', if_true: files('hostmem-memfd.c'))
+if targetos == 'linux'
+  system_ss.add(files('hostmem-memfd.c'))
+endif
 if keyutils.found()
     system_ss.add(keyutils, files('cryptodev-lkcf.c'))
 endif
diff --git a/block/meson.build b/block/meson.build
index 59ff6d380c0..7faed96c1e7 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -91,7 +91,9 @@ endif
 block_ss.add(when: 'CONFIG_WIN32', if_true: files('file-win32.c', 'win32-aio.c'))
 block_ss.add(when: 'CONFIG_POSIX', if_true: [files('file-posix.c'), coref, iokit])
 block_ss.add(when: libiscsi, if_true: files('iscsi-opts.c'))
-block_ss.add(when: 'CONFIG_LINUX', if_true: files('nvme.c'))
+if targetos == 'linux'
+  block_ss.add(files('nvme.c'))
+endif
 if get_option('replication').allowed()
   block_ss.add(files('replication.c'))
 endif
diff --git a/fsdev/meson.build b/fsdev/meson.build
index 1bec0659245..c76347615df 100644
--- a/fsdev/meson.build
+++ b/fsdev/meson.build
@@ -6,8 +6,9 @@ fsdev_ss.add(when: ['CONFIG_FSDEV_9P'], if_true: files(
   '9p-marshal.c',
   'qemu-fsdev.c',
 ), if_false: files('qemu-fsdev-dummy.c'))
-system_ss.add_all(when: 'CONFIG_LINUX', if_true: fsdev_ss)
-system_ss.add_all(when: 'CONFIG_DARWIN', if_true: fsdev_ss)
+if targetos in ['linux', 'darwin']
+  system_ss.add_all(fsdev_ss)
+endif
 
 if have_virtfs_proxy_helper
   executable('virtfs-proxy-helper',
diff --git a/hw/9pfs/meson.build b/hw/9pfs/meson.build
index 2944ea63c38..3eee7c268a9 100644
--- a/hw/9pfs/meson.build
+++ b/hw/9pfs/meson.build
@@ -13,8 +13,11 @@ fs_ss.add(files(
   'coth.c',
   'coxattr.c',
 ))
-fs_ss.add(when: 'CONFIG_LINUX', if_true: files('9p-util-linux.c'))
-fs_ss.add(when: 'CONFIG_DARWIN', if_true: files('9p-util-darwin.c'))
+if targetos == 'darwin'
+  fs_ss.add(files('9p-util-darwin.c'))
+elif targetos == 'linux'
+  fs_ss.add(files('9p-util-linux.c'))
+endif
 fs_ss.add(when: 'CONFIG_XEN_BUS', if_true: files('xen-9p-backend.c'))
 system_ss.add_all(when: 'CONFIG_FSDEV_9P', if_true: fs_ss)
 
diff --git a/hw/display/meson.build b/hw/display/meson.build
index 344dfe3d8c2..02b0044c9ec 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -69,8 +69,11 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
   virtio_gpu_ss = ss.source_set()
   virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_GPU',
                     if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c'), pixman])
-  virtio_gpu_ss.add(when: 'CONFIG_LINUX', if_true: files('virtio-gpu-udmabuf.c'),
-                                          if_false: files('virtio-gpu-udmabuf-stubs.c'))
+  if targetos == 'linux'
+    virtio_gpu_ss.add(files('virtio-gpu-udmabuf.c'))
+  else
+    virtio_gpu_ss.add(files('virtio-gpu-udmabuf-stubs.c'))
+  endif
   virtio_gpu_ss.add(when: 'CONFIG_VHOST_USER_GPU', if_true: files('vhost-user-gpu.c'))
   hw_display_modules += {'virtio-gpu': virtio_gpu_ss}
 
diff --git a/hw/ppc/meson.build b/hw/ppc/meson.build
index ea44856d43b..3dedcf3043d 100644
--- a/hw/ppc/meson.build
+++ b/hw/ppc/meson.build
@@ -34,9 +34,11 @@ ppc_ss.add(when: ['CONFIG_PSERIES', 'CONFIG_TCG'], if_true: files(
   'spapr_softmmu.c',
 ))
 ppc_ss.add(when: 'CONFIG_SPAPR_RNG', if_true: files('spapr_rng.c'))
-ppc_ss.add(when: ['CONFIG_PSERIES', 'CONFIG_LINUX'], if_true: files(
-  'spapr_pci_vfio.c',
-))
+if targetos == 'linux'
+  ppc_ss.add(when: 'CONFIG_PSERIES', if_true: files(
+    'spapr_pci_vfio.c',
+  ))
+endif
 
 # IBM PowerNV
 ppc_ss.add(when: 'CONFIG_POWERNV', if_true: files(
diff --git a/hw/usb/meson.build b/hw/usb/meson.build
index e94149ebdeb..4b44db39cd3 100644
--- a/hw/usb/meson.build
+++ b/hw/usb/meson.build
@@ -58,7 +58,9 @@ endif
 
 # U2F
 system_ss.add(when: 'CONFIG_USB_U2F', if_true: files('u2f.c'))
-system_ss.add(when: ['CONFIG_LINUX', 'CONFIG_USB_U2F'], if_true: [libudev, files('u2f-passthru.c')])
+if targetos == 'linux'
+  system_ss.add(when: 'CONFIG_USB_U2F', if_true: [libudev, files('u2f-passthru.c')])
+endif
 if u2f.found()
   system_ss.add(when: 'CONFIG_USB_U2F', if_true: [u2f, files('u2f-emulated.c')])
 endif
diff --git a/meson.build b/meson.build
index 7344e363826..cf224e252c6 100644
--- a/meson.build
+++ b/meson.build
@@ -2888,14 +2888,6 @@ minikconf = find_program('scripts/minikconf.py')
 config_targetos = {
   (targetos == 'windows' ? 'CONFIG_WIN32' : 'CONFIG_POSIX'): 'y'
 }
-if targetos == 'darwin'
-  config_targetos += {'CONFIG_DARWIN': 'y'}
-elif targetos == 'linux'
-  config_targetos += {'CONFIG_LINUX': 'y'}
-endif
-if targetos in bsd_oses
-  config_targetos += {'CONFIG_BSD': 'y'}
-endif
 
 config_all = {}
 config_all_devices = {}
diff --git a/net/can/meson.build b/net/can/meson.build
index 45693c82c9d..bdf6f8eee16 100644
--- a/net/can/meson.build
+++ b/net/can/meson.build
@@ -1,5 +1,7 @@
 can_ss = ss.source_set()
 can_ss.add(files('can_core.c', 'can_host.c'))
-can_ss.add(when: 'CONFIG_LINUX', if_true: files('can_socketcan.c'))
+if targetos == 'linux'
+  can_ss.add(files('can_socketcan.c'))
+endif
 
 system_ss.add_all(when: 'CONFIG_CAN_BUS', if_true: can_ss)
diff --git a/qga/meson.build b/qga/meson.build
index a6af614891a..50edaf1c3d4 100644
--- a/qga/meson.build
+++ b/qga/meson.build
@@ -72,12 +72,11 @@ qga_ss.add(when: 'CONFIG_POSIX', if_true: files(
   'commands-posix.c',
   'commands-posix-ssh.c',
 ))
-qga_ss.add(when: 'CONFIG_LINUX', if_true: files(
-  'commands-linux.c',
-))
-qga_ss.add(when: 'CONFIG_BSD', if_true: files(
-  'commands-bsd.c',
-))
+if targetos == 'linux'
+  qga_ss.add(files('commands-linux.c'))
+elif targetos in bsd_oses
+  qga_ss.add(files('commands-bsd.c'))
+endif
 qga_ss.add(when: 'CONFIG_WIN32', if_true: files(
   'channel-win32.c',
   'commands-win32.c',
diff --git a/scsi/meson.build b/scsi/meson.build
index 53f3a1f7169..0ff2b3affe0 100644
--- a/scsi/meson.build
+++ b/scsi/meson.build
@@ -1,4 +1,6 @@
 block_ss.add(files('utils.c'))
-block_ss.add(when: 'CONFIG_LINUX',
-             if_true: files('pr-manager.c', 'pr-manager-helper.c'),
-             if_false: files('pr-manager-stub.c'))
+if targetos == 'linux'
+  block_ss.add(files('pr-manager.c', 'pr-manager-helper.c'))
+else
+  block_ss.add(files('pr-manager-stub.c'))
+endif
diff --git a/system/meson.build b/system/meson.build
index 3a64dd89de1..0632a3daa8a 100644
--- a/system/meson.build
+++ b/system/meson.build
@@ -33,4 +33,6 @@ endif
 
 system_ss.add(when: seccomp, if_true: files('qemu-seccomp.c'))
 system_ss.add(when: fdt, if_true: files('device_tree.c'))
-system_ss.add(when: 'CONFIG_LINUX', if_true: files('async-teardown.c'))
+if targetos == 'linux'
+  system_ss.add('async-teardown.c')
+endif
diff --git a/ui/meson.build b/ui/meson.build
index 0ccb3387ee6..8379a788a1a 100644
--- a/ui/meson.build
+++ b/ui/meson.build
@@ -25,10 +25,9 @@ endif
 system_ss.add([spice_headers, files('spice-module.c')])
 system_ss.add(when: spice_protocol, if_true: files('vdagent.c'))
 
-system_ss.add(when: 'CONFIG_LINUX', if_true: files(
-  'input-linux.c',
-  'udmabuf.c',
-))
+if targetos == 'linux'
+  system_ss.add(files('input-linux.c', 'udmabuf.c'))
+endif
 system_ss.add(when: cocoa, if_true: files('cocoa.m'))
 
 vnc_ss = ss.source_set()
diff --git a/util/meson.build b/util/meson.build
index 174c133368a..98dd7fa5340 100644
--- a/util/meson.build
+++ b/util/meson.build
@@ -71,7 +71,9 @@ endif
 if have_system
   util_ss.add(files('crc-ccitt.c'))
   util_ss.add(when: gio, if_true: files('dbus.c'))
-  util_ss.add(when: 'CONFIG_LINUX', if_true: files('userfaultfd.c'))
+  if targetos == 'linux'
+    util_ss.add(files('userfaultfd.c'))
+  endif
 endif
 
 if have_block or have_ga
@@ -92,9 +94,6 @@ if have_block
   util_ss.add(files('iova-tree.c'))
   util_ss.add(files('iov.c', 'uri.c'))
   util_ss.add(files('nvdimm-utils.c'))
-  util_ss.add(when: 'CONFIG_LINUX', if_true: [
-    files('vhost-user-server.c'), vhost_user
-  ])
   util_ss.add(files('block-helpers.c'))
   util_ss.add(files('qemu-coroutine-sleep.c'))
   util_ss.add(files('qemu-co-shared-resource.c'))
@@ -107,8 +106,11 @@ if have_block
   else
     util_ss.add(files('filemonitor-stub.c'))
   endif
-  util_ss.add(when: 'CONFIG_LINUX', if_true: files('vfio-helpers.c'))
-  util_ss.add(when: 'CONFIG_LINUX', if_true: files('chardev_open.c'))
+  if targetos == 'linux'
+    util_ss.add(files('vhost-user-server.c'), vhost_user)
+    util_ss.add(files('vfio-helpers.c'))
+    util_ss.add(files('chardev_open.c'))
+  endif
 endif
 
 if cpu == 'aarch64'
-- 
2.43.0

[PULL 41/46] meson: remove CONFIG_POSIX and CONFIG_WIN32 from config_targetos

[Paolo Bonzini]

For consistency with other OSes, use if...endif for rules that are
target-independent.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 backends/meson.build |  6 ++++--
 block/meson.build    |  7 +++++--
 chardev/meson.build  | 26 ++++++++++++++------------
 hw/usb/meson.build   |  4 +++-
 meson.build          | 11 ++++++-----
 qga/meson.build      | 33 ++++++++++++++++++---------------
 ui/meson.build       |  8 ++++++--
 util/meson.build     | 44 +++++++++++++++++++++++---------------------
 8 files changed, 79 insertions(+), 60 deletions(-)

diff --git a/backends/meson.build b/backends/meson.build
index 248ce4923c6..6dee4e9203b 100644
--- a/backends/meson.build
+++ b/backends/meson.build
@@ -10,8 +10,10 @@ system_ss.add([files(
   'confidential-guest-support.c',
 ), numa])
 
-system_ss.add(when: 'CONFIG_POSIX', if_true: files('rng-random.c'))
-system_ss.add(when: 'CONFIG_POSIX', if_true: files('hostmem-file.c'))
+if targetos != 'windows'
+  system_ss.add(files('rng-random.c'))
+  system_ss.add(files('hostmem-file.c'))
+endif
 if targetos == 'linux'
   system_ss.add(files('hostmem-memfd.c'))
 endif
diff --git a/block/meson.build b/block/meson.build
index 7faed96c1e7..ddea1e40070 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -88,8 +88,11 @@ if get_option('parallels').allowed()
   block_ss.add(files('parallels.c', 'parallels-ext.c'))
 endif
 
-block_ss.add(when: 'CONFIG_WIN32', if_true: files('file-win32.c', 'win32-aio.c'))
-block_ss.add(when: 'CONFIG_POSIX', if_true: [files('file-posix.c'), coref, iokit])
+if targetos == 'windows'
+  block_ss.add(files('file-win32.c', 'win32-aio.c'))
+else
+  block_ss.add(files('file-posix.c'), coref, iokit)
+endif
 block_ss.add(when: libiscsi, if_true: files('iscsi-opts.c'))
 if targetos == 'linux'
   block_ss.add(files('nvme.c'))
diff --git a/chardev/meson.build b/chardev/meson.build
index 6d56ad32fdb..9564ace868b 100644
--- a/chardev/meson.build
+++ b/chardev/meson.build
@@ -12,20 +12,22 @@ chardev_ss.add(files(
   'char-udp.c',
   'char.c',
 ))
-chardev_ss.add(when: 'CONFIG_POSIX', if_true: [files(
-  'char-fd.c',
-  'char-pty.c',
-), util])
-if targetos in ['linux', 'gnu/kfreebsd', 'freebsd', 'dragonfly']
-  chardev_ss.add(files('char-parallel.c'))
+if targetos == 'windows'
+  chardev_ss.add(files(
+    'char-console.c',
+    'char-win-stdio.c',
+    'char-win.c',
+  ))
+else
+  chardev_ss.add(files(
+      'char-fd.c',
+      'char-pty.c',
+    ), util)
+  if targetos in ['linux', 'gnu/kfreebsd', 'freebsd', 'dragonfly']
+    chardev_ss.add(files('char-parallel.c'))
+  endif
 endif
 
-chardev_ss.add(when: 'CONFIG_WIN32', if_true: files(
-  'char-console.c',
-  'char-win-stdio.c',
-  'char-win.c',
-))
-
 chardev_ss = chardev_ss.apply(config_targetos, strict: false)
 
 system_ss.add(files(
diff --git a/hw/usb/meson.build b/hw/usb/meson.build
index 4b44db39cd3..b7755b638fc 100644
--- a/hw/usb/meson.build
+++ b/hw/usb/meson.build
@@ -44,7 +44,9 @@ system_ss.add(when: 'CONFIG_USB_STORAGE_UAS', if_true: files('dev-uas.c'))
 system_ss.add(when: 'CONFIG_USB_AUDIO', if_true: files('dev-audio.c'))
 system_ss.add(when: 'CONFIG_USB_SERIAL', if_true: files('dev-serial.c'))
 system_ss.add(when: 'CONFIG_USB_NETWORK', if_true: files('dev-network.c'))
-system_ss.add(when: ['CONFIG_POSIX', 'CONFIG_USB_STORAGE_MTP'], if_true: files('dev-mtp.c'))
+if targetos != 'windows'
+  system_ss.add(when: 'CONFIG_USB_STORAGE_MTP', if_true: files('dev-mtp.c'))
+endif
 
 # smartcard
 system_ss.add(when: 'CONFIG_USB_SMARTCARD', if_true: files('dev-smartcard-reader.c'))
diff --git a/meson.build b/meson.build
index cf224e252c6..e37ab286c23 100644
--- a/meson.build
+++ b/meson.build
@@ -2885,9 +2885,7 @@ endif
 ########################
 
 minikconf = find_program('scripts/minikconf.py')
-config_targetos = {
-  (targetos == 'windows' ? 'CONFIG_WIN32' : 'CONFIG_POSIX'): 'y'
-}
+config_targetos = {}
 
 config_all = {}
 config_all_devices = {}
@@ -3480,8 +3478,11 @@ if have_block
 
   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
   # os-win32.c does not
-  blockdev_ss.add(when: 'CONFIG_POSIX', if_true: files('os-posix.c'))
-  system_ss.add(when: 'CONFIG_WIN32', if_true: [files('os-win32.c')])
+  if targetos == 'windows'
+    system_ss.add(files('os-win32.c'))
+  else
+    blockdev_ss.add(files('os-posix.c'))
+  endif
 endif
 
 common_ss.add(files('cpu-common.c'))
diff --git a/qga/meson.build b/qga/meson.build
index 50edaf1c3d4..1113e7c7fae 100644
--- a/qga/meson.build
+++ b/qga/meson.build
@@ -67,22 +67,25 @@ qga_ss.add(files(
   'main.c',
   'cutils.c',
 ))
-qga_ss.add(when: 'CONFIG_POSIX', if_true: files(
-  'channel-posix.c',
-  'commands-posix.c',
-  'commands-posix-ssh.c',
-))
-if targetos == 'linux'
-  qga_ss.add(files('commands-linux.c'))
-elif targetos in bsd_oses
-  qga_ss.add(files('commands-bsd.c'))
+if targetos == 'windows'
+  qga_ss.add(files(
+    'channel-win32.c',
+    'commands-win32.c',
+    'service-win32.c',
+    'vss-win32.c'
+  ))
+else
+  qga_ss.add(files(
+    'channel-posix.c',
+    'commands-posix.c',
+    'commands-posix-ssh.c',
+  ))
+  if targetos == 'linux'
+    qga_ss.add(files('commands-linux.c'))
+  elif targetos in bsd_oses
+    qga_ss.add(files('commands-bsd.c'))
+  endif
 endif
-qga_ss.add(when: 'CONFIG_WIN32', if_true: files(
-  'channel-win32.c',
-  'commands-win32.c',
-  'service-win32.c',
-  'vss-win32.c'
-))
 
 qga_ss = qga_ss.apply(config_targetos, strict: false)
 
diff --git a/ui/meson.build b/ui/meson.build
index 8379a788a1a..a370494c4ab 100644
--- a/ui/meson.build
+++ b/ui/meson.build
@@ -105,7 +105,9 @@ if dbus_display
 endif
 
 if gtk.found()
-  system_ss.add(when: 'CONFIG_WIN32', if_true: files('win32-kbd-hook.c'))
+  if targetos == 'windows'
+    system_ss.add(files('win32-kbd-hook.c'))
+  endif
 
   gtk_ss = ss.source_set()
   gtk_ss.add(gtk, vte, pixman, files('gtk.c'))
@@ -119,7 +121,9 @@ if gtk.found()
 endif
 
 if sdl.found()
-  system_ss.add(when: 'CONFIG_WIN32', if_true: files('win32-kbd-hook.c'))
+  if targetos == 'windows'
+    system_ss.add(files('win32-kbd-hook.c'))
+  endif
 
   sdl_ss = ss.source_set()
   sdl_ss.add(sdl, sdl_image, pixman, glib, files(
diff --git a/util/meson.build b/util/meson.build
index 98dd7fa5340..4e970d2b488 100644
--- a/util/meson.build
+++ b/util/meson.build
@@ -3,28 +3,31 @@ util_ss.add(files('thread-context.c'), numa)
 if not config_host_data.get('CONFIG_ATOMIC64')
   util_ss.add(files('atomic64.c'))
 endif
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('aio-posix.c'))
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('fdmon-poll.c'))
-if config_host_data.get('CONFIG_EPOLL_CREATE1')
-  util_ss.add(files('fdmon-epoll.c'))
+if targetos != 'windows'
+  util_ss.add(files('aio-posix.c'))
+  util_ss.add(files('fdmon-poll.c'))
+  if config_host_data.get('CONFIG_EPOLL_CREATE1')
+    util_ss.add(files('fdmon-epoll.c'))
+  endif
+  util_ss.add(files('compatfd.c'))
+  util_ss.add(files('event_notifier-posix.c'))
+  util_ss.add(files('mmap-alloc.c'))
+  freebsd_dep = []
+  if targetos == 'freebsd'
+    freebsd_dep = util
+  endif
+  util_ss.add(files('oslib-posix.c'), freebsd_dep)
+  util_ss.add(files('qemu-thread-posix.c'))
+  util_ss.add(files('memfd.c'))
+  util_ss.add(files('drm.c'))
+else
+  util_ss.add(files('aio-win32.c'))
+  util_ss.add(files('event_notifier-win32.c'))
+  util_ss.add(files('oslib-win32.c'))
+  util_ss.add(files('qemu-thread-win32.c'))
+  util_ss.add(winmm, pathcch)
 endif
 util_ss.add(when: linux_io_uring, if_true: files('fdmon-io_uring.c'))
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('compatfd.c'))
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('event_notifier-posix.c'))
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('mmap-alloc.c'))
-freebsd_dep = []
-if targetos == 'freebsd'
-  freebsd_dep = util
-endif
-util_ss.add(when: 'CONFIG_POSIX', if_true: [files('oslib-posix.c'), freebsd_dep])
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('qemu-thread-posix.c'))
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('memfd.c'))
-util_ss.add(when: 'CONFIG_WIN32', if_true: files('aio-win32.c'))
-util_ss.add(when: 'CONFIG_WIN32', if_true: files('event_notifier-win32.c'))
-util_ss.add(when: 'CONFIG_WIN32', if_true: files('oslib-win32.c'))
-util_ss.add(when: 'CONFIG_WIN32', if_true: files('qemu-thread-win32.c'))
-util_ss.add(when: 'CONFIG_WIN32', if_true: winmm)
-util_ss.add(when: 'CONFIG_WIN32', if_true: pathcch)
 if glib_has_gslice
   util_ss.add(files('qtree.c'))
 endif
@@ -56,7 +59,6 @@ util_ss.add(files('reserved-region.c'))
 util_ss.add(files('stats64.c'))
 util_ss.add(files('systemd.c'))
 util_ss.add(files('transactions.c'))
-util_ss.add(when: 'CONFIG_POSIX', if_true: files('drm.c'))
 util_ss.add(files('guest-random.c'))
 util_ss.add(files('yank.c'))
 util_ss.add(files('int128.c'))
-- 
2.43.0

[PULL 42/46] meson: remove config_targetos

[Paolo Bonzini]

config_targetos is now empty and can be removed; its use in sourcesets
that do not involve target-specific files can be replaced with an empty
dictionary.

In fact, at this point *all* sourcesets that do not involve
target-specific files are just glorified mutable arrays.  Enforce that
they never test for symbols in "when:" by computing the set of files
without "strict: false".

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 chardev/meson.build        |  2 +-
 gdbstub/meson.build        |  4 ++--
 meson.build                | 24 ++++++++++--------------
 qga/meson.build            |  2 +-
 storage-daemon/meson.build |  2 +-
 tcg/meson.build            |  2 +-
 tests/qtest/meson.build    |  2 +-
 7 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/chardev/meson.build b/chardev/meson.build
index 9564ace868b..db6840b71af 100644
--- a/chardev/meson.build
+++ b/chardev/meson.build
@@ -28,7 +28,7 @@ else
   endif
 endif
 
-chardev_ss = chardev_ss.apply(config_targetos, strict: false)
+chardev_ss = chardev_ss.apply({})
 
 system_ss.add(files(
     'char-hmp-cmds.c',
diff --git a/gdbstub/meson.build b/gdbstub/meson.build
index e5bccba34e5..da5721d8452 100644
--- a/gdbstub/meson.build
+++ b/gdbstub/meson.build
@@ -14,8 +14,8 @@ gdb_system_ss = ss.source_set()
 gdb_user_ss.add(files('gdbstub.c', 'user.c'))
 gdb_system_ss.add(files('gdbstub.c', 'system.c'))
 
-gdb_user_ss = gdb_user_ss.apply(config_targetos, strict: false)
-gdb_system_ss = gdb_system_ss.apply(config_targetos, strict: false)
+gdb_user_ss = gdb_user_ss.apply({})
+gdb_system_ss = gdb_system_ss.apply({})
 
 libgdb_user = static_library('gdb_user',
                              gdb_user_ss.sources() + genh,
diff --git a/meson.build b/meson.build
index e37ab286c23..7aa06dc7c1b 100644
--- a/meson.build
+++ b/meson.build
@@ -2885,7 +2885,6 @@ endif
 ########################
 
 minikconf = find_program('scripts/minikconf.py')
-config_targetos = {}
 
 config_all = {}
 config_all_devices = {}
@@ -3084,7 +3083,6 @@ target_dirs = actual_target_dirs
 # pseudo symbol replaces it.
 
 config_all += config_all_devices
-config_all += config_targetos
 config_all += config_all_disas
 config_all += {
   'CONFIG_XEN': xen.found(),
@@ -3413,7 +3411,7 @@ if enable_modules
   modulecommon = declare_dependency(link_whole: libmodulecommon, compile_args: '-DBUILD_DSO')
 endif
 
-qom_ss = qom_ss.apply(config_targetos, strict: false)
+qom_ss = qom_ss.apply({})
 libqom = static_library('qom', qom_ss.sources() + genh,
                         dependencies: [qom_ss.dependencies()],
                         name_suffix: 'fa',
@@ -3428,10 +3426,10 @@ event_loop_base = static_library('event-loop-base',
 event_loop_base = declare_dependency(link_whole: event_loop_base,
                                      dependencies: [qom])
 
-stub_ss = stub_ss.apply(config_all, strict: false)
+stub_ss = stub_ss.apply({})
 
 util_ss.add_all(trace_ss)
-util_ss = util_ss.apply(config_all, strict: false)
+util_ss = util_ss.apply({})
 libqemuutil = static_library('qemuutil',
                              build_by_default: false,
                              sources: util_ss.sources() + stub_ss.sources() + genh,
@@ -3594,7 +3592,6 @@ foreach d, list : target_modules
       foreach target : target_dirs
         if target.endswith('-softmmu')
           config_target = config_target_mak[target]
-          config_target += config_targetos
           target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
           c_args = ['-DNEED_CPU_H',
                     '-DCONFIG_TARGET="@0@-config-target.h"'.format(target),
@@ -3655,7 +3652,7 @@ qemu_syms = custom_target('qemu.syms', output: 'qemu.syms',
                              capture: true,
                              command: [undefsym, nm, '@INPUT@'])
 
-authz_ss = authz_ss.apply(config_targetos, strict: false)
+authz_ss = authz_ss.apply({})
 libauthz = static_library('authz', authz_ss.sources() + genh,
                           dependencies: [authz_ss.dependencies()],
                           name_suffix: 'fa',
@@ -3664,7 +3661,7 @@ libauthz = static_library('authz', authz_ss.sources() + genh,
 authz = declare_dependency(link_whole: libauthz,
                            dependencies: qom)
 
-crypto_ss = crypto_ss.apply(config_targetos, strict: false)
+crypto_ss = crypto_ss.apply({})
 libcrypto = static_library('crypto', crypto_ss.sources() + genh,
                            dependencies: [crypto_ss.dependencies()],
                            name_suffix: 'fa',
@@ -3673,7 +3670,7 @@ libcrypto = static_library('crypto', crypto_ss.sources() + genh,
 crypto = declare_dependency(link_whole: libcrypto,
                             dependencies: [authz, qom])
 
-io_ss = io_ss.apply(config_targetos, strict: false)
+io_ss = io_ss.apply({})
 libio = static_library('io', io_ss.sources() + genh,
                        dependencies: [io_ss.dependencies()],
                        link_with: libqemuutil,
@@ -3689,7 +3686,7 @@ migration = declare_dependency(link_with: libmigration,
                                dependencies: [zlib, qom, io])
 system_ss.add(migration)
 
-block_ss = block_ss.apply(config_targetos, strict: false)
+block_ss = block_ss.apply({})
 libblock = static_library('block', block_ss.sources() + genh,
                           dependencies: block_ss.dependencies(),
                           link_depends: block_syms,
@@ -3700,7 +3697,7 @@ block = declare_dependency(link_whole: [libblock],
                            link_args: '@block.syms',
                            dependencies: [crypto, io])
 
-blockdev_ss = blockdev_ss.apply(config_targetos, strict: false)
+blockdev_ss = blockdev_ss.apply({})
 libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
                              dependencies: blockdev_ss.dependencies(),
                              name_suffix: 'fa',
@@ -3709,7 +3706,7 @@ libblockdev = static_library('blockdev', blockdev_ss.sources() + genh,
 blockdev = declare_dependency(link_whole: [libblockdev],
                               dependencies: [block, event_loop_base])
 
-qmp_ss = qmp_ss.apply(config_targetos, strict: false)
+qmp_ss = qmp_ss.apply({})
 libqmp = static_library('qmp', qmp_ss.sources() + genh,
                         dependencies: qmp_ss.dependencies(),
                         name_suffix: 'fa',
@@ -3724,7 +3721,7 @@ libchardev = static_library('chardev', chardev_ss.sources() + genh,
 
 chardev = declare_dependency(link_whole: libchardev)
 
-hwcore_ss = hwcore_ss.apply(config_targetos, strict: false)
+hwcore_ss = hwcore_ss.apply({})
 libhwcore = static_library('hwcore', sources: hwcore_ss.sources() + genh,
                            name_suffix: 'fa',
                            build_by_default: false)
@@ -3781,7 +3778,6 @@ foreach target : target_dirs
             '-DCONFIG_DEVICES="@0@-config-devices.h"'.format(target)]
   link_args = emulator_link_args
 
-  config_target += config_targetos
   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
   if targetos == 'linux'
     target_inc += include_directories('linux-headers', is_system: true)
diff --git a/qga/meson.build b/qga/meson.build
index 1113e7c7fae..66c0f1e56f8 100644
--- a/qga/meson.build
+++ b/qga/meson.build
@@ -87,7 +87,7 @@ else
   endif
 endif
 
-qga_ss = qga_ss.apply(config_targetos, strict: false)
+qga_ss = qga_ss.apply({})
 
 gen_tlb = []
 qga_libs = []
diff --git a/storage-daemon/meson.build b/storage-daemon/meson.build
index 5e90cd32b40..46267b63e72 100644
--- a/storage-daemon/meson.build
+++ b/storage-daemon/meson.build
@@ -5,7 +5,7 @@ qsd_ss.add(blockdev, chardev, qmp, qom, qemuutil, gnutls)
 subdir('qapi')
 
 if have_tools
-  qsd_ss = qsd_ss.apply(config_targetos, strict: false)
+  qsd_ss = qsd_ss.apply({})
   qsd = executable('qemu-storage-daemon',
                    qsd_ss.sources(),
                    dependencies: qsd_ss.dependencies(),
diff --git a/tcg/meson.build b/tcg/meson.build
index 895a11d3fa2..5afdec1e1ae 100644
--- a/tcg/meson.build
+++ b/tcg/meson.build
@@ -22,7 +22,7 @@ if get_option('tcg_interpreter')
   tcg_ss.add(files('tci.c'))
 endif
 
-tcg_ss = tcg_ss.apply(config_targetos, strict: false)
+tcg_ss = tcg_ss.apply({})
 
 libtcg_user = static_library('tcg_user',
                              tcg_ss.sources() + genh,
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 47dabf91d04..40a8bb043e4 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -310,7 +310,7 @@ qtests = {
   'ivshmem-test': [rt, '../../contrib/ivshmem-server/ivshmem-server.c'],
   'migration-test': migration_files,
   'pxe-test': files('boot-sector.c'),
-  'qos-test': [chardev, io, qos_test_ss.apply(config_targetos, strict: false).sources()],
+  'qos-test': [chardev, io, qos_test_ss.apply({}).sources()],
   'tpm-crb-swtpm-test': [io, tpmemu_files],
   'tpm-crb-test': [io, tpmemu_files],
   'tpm-tis-swtpm-test': [io, tpmemu_files, 'tpm-tis-util.c'],
-- 
2.43.0

[PULL 43/46] meson: remove CONFIG_ALL

[Paolo Bonzini]

CONFIG_ALL is tricky to use and was ported over to Meson from the
recursive processing of Makefile variables.  Meson sourcesets
however have all_sources() and all_dependencies() methods that
remove the need for it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 docs/devel/build-system.rst | 15 ---------------
 fsdev/meson.build           |  1 -
 hw/acpi/meson.build         |  5 -----
 hw/cxl/meson.build          |  2 --
 hw/display/meson.build      |  1 -
 hw/mem/meson.build          |  1 -
 hw/net/meson.build          |  2 --
 hw/pci-bridge/meson.build   |  2 --
 hw/pci/meson.build          |  1 -
 hw/remote/meson.build       |  1 -
 hw/smbios/meson.build       |  5 -----
 hw/virtio/meson.build       |  2 --
 meson.build                 | 32 +++++++-------------------------
 net/meson.build             |  2 --
 14 files changed, 7 insertions(+), 65 deletions(-)

diff --git a/docs/devel/build-system.rst b/docs/devel/build-system.rst
index 43d6005881e..09caf2f8e19 100644
--- a/docs/devel/build-system.rst
+++ b/docs/devel/build-system.rst
@@ -256,21 +256,6 @@ Target-independent emulator sourcesets:
   ``system_ss`` only in system emulators, ``user_ss`` only in user-mode
   emulators.
 
-  Target-independent sourcesets must exercise particular care when using
-  ``if_false`` rules.  The ``if_false`` rule will be used correctly when linking
-  emulator binaries; however, when *compiling* target-independent files
-  into .o files, Meson may need to pick *both* the ``if_true`` and
-  ``if_false`` sides to cater for targets that want either side.  To
-  achieve that, you can add a special rule using the ``CONFIG_ALL``
-  symbol::
-
-    # Some targets have CONFIG_ACPI, some don't, so this is not enough
-    system_ss.add(when: 'CONFIG_ACPI', if_true: files('acpi.c'),
-                                        if_false: files('acpi-stub.c'))
-
-    # This is required as well:
-    system_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c'))
-
 Target-dependent emulator sourcesets:
   In the target-dependent set lives CPU emulation, some device emulation and
   much glue code. This sometimes also has to be compiled multiple times,
diff --git a/fsdev/meson.build b/fsdev/meson.build
index c76347615df..db67530d7f2 100644
--- a/fsdev/meson.build
+++ b/fsdev/meson.build
@@ -1,6 +1,5 @@
 fsdev_ss = ss.source_set()
 fsdev_ss.add(files('qemu-fsdev-opts.c', 'qemu-fsdev-throttle.c'))
-fsdev_ss.add(when: 'CONFIG_ALL', if_true: files('qemu-fsdev-dummy.c'))
 fsdev_ss.add(when: ['CONFIG_FSDEV_9P'], if_true: files(
   '9p-iov-marshal.c',
   '9p-marshal.c',
diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build
index fc1b952379a..5441c9b1e4c 100644
--- a/hw/acpi/meson.build
+++ b/hw/acpi/meson.build
@@ -33,9 +33,4 @@ endif
 system_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c', 'acpi_interface.c'))
 system_ss.add(when: 'CONFIG_ACPI_PCI_BRIDGE', if_false: files('pci-bridge-stub.c'))
 system_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
-system_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c', 'aml-build-stub.c',
-                                                  'acpi-x86-stub.c', 'ipmi-stub.c', 'ghes-stub.c',
-                                                  'acpi-mem-hotplug-stub.c', 'acpi-cpu-hotplug-stub.c',
-                                                  'acpi-pci-hotplug-stub.c', 'acpi-nvdimm-stub.c',
-                                                  'cxl-stub.c', 'pci-bridge-stub.c'))
 system_ss.add(files('acpi-qmp-cmds.c'))
diff --git a/hw/cxl/meson.build b/hw/cxl/meson.build
index ea0aebf6e3c..3e375f61a98 100644
--- a/hw/cxl/meson.build
+++ b/hw/cxl/meson.build
@@ -11,5 +11,3 @@ system_ss.add(when: 'CONFIG_CXL',
                if_false: files(
                    'cxl-host-stubs.c',
                ))
-
-system_ss.add(when: 'CONFIG_ALL', if_true: files('cxl-host-stubs.c'))
diff --git a/hw/display/meson.build b/hw/display/meson.build
index 02b0044c9ec..ac0159c516e 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -143,5 +143,4 @@ endif
 
 system_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_lcdc.c'))
 
-system_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-vga-stub.c'))
 modules += { 'hw-display': hw_display_modules }
diff --git a/hw/mem/meson.build b/hw/mem/meson.build
index ec26ef55443..faee1fe9360 100644
--- a/hw/mem/meson.build
+++ b/hw/mem/meson.build
@@ -5,7 +5,6 @@ mem_ss.add(when: 'CONFIG_NPCM7XX', if_true: files('npcm7xx_mc.c'))
 mem_ss.add(when: 'CONFIG_NVDIMM', if_true: files('nvdimm.c'))
 mem_ss.add(when: 'CONFIG_CXL_MEM_DEVICE', if_true: files('cxl_type3.c'))
 system_ss.add(when: 'CONFIG_CXL_MEM_DEVICE', if_false: files('cxl_type3_stubs.c'))
-system_ss.add(when: 'CONFIG_ALL', if_true: files('cxl_type3_stubs.c'))
 
 system_ss.add_all(when: 'CONFIG_MEM_DEVICE', if_true: mem_ss)
 
diff --git a/hw/net/meson.build b/hw/net/meson.build
index f64651c467e..9afceb06191 100644
--- a/hw/net/meson.build
+++ b/hw/net/meson.build
@@ -50,7 +50,6 @@ specific_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('virtio-net.c'))
 
 if have_vhost_net
   system_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('vhost_net.c'), if_false: files('vhost_net-stub.c'))
-  system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost_net-stub.c'))
 else
   system_ss.add(files('vhost_net-stub.c'))
 endif
@@ -69,7 +68,6 @@ system_ss.add(when: 'CONFIG_ROCKER', if_true: files(
   'rocker/rocker_of_dpa.c',
   'rocker/rocker_world.c',
 ), if_false: files('rocker/qmp-norocker.c'))
-system_ss.add(when: 'CONFIG_ALL', if_true: files('rocker/qmp-norocker.c'))
 system_ss.add(files('rocker/rocker-hmp-cmds.c'))
 
 subdir('can')
diff --git a/hw/pci-bridge/meson.build b/hw/pci-bridge/meson.build
index 6d5ad9f37b2..f2a60434dda 100644
--- a/hw/pci-bridge/meson.build
+++ b/hw/pci-bridge/meson.build
@@ -13,5 +13,3 @@ pci_ss.add(when: 'CONFIG_CXL', if_true: files('cxl_root_port.c', 'cxl_upstream.c
 pci_ss.add(when: 'CONFIG_SIMBA', if_true: files('simba.c'))
 
 system_ss.add_all(when: 'CONFIG_PCI', if_true: pci_ss)
-
-system_ss.add(when: 'CONFIG_ALL', if_true: files('pci_expander_bridge_stubs.c'))
diff --git a/hw/pci/meson.build b/hw/pci/meson.build
index b1855452f5b..b9c34b2acfe 100644
--- a/hw/pci/meson.build
+++ b/hw/pci/meson.build
@@ -20,4 +20,3 @@ system_ss.add(when: 'CONFIG_PCI_EXPRESS', if_true: files('pcie_port.c', 'pcie_ho
 system_ss.add_all(when: 'CONFIG_PCI', if_true: pci_ss)
 
 system_ss.add(when: 'CONFIG_PCI', if_false: files('pci-stub.c'))
-system_ss.add(when: 'CONFIG_ALL', if_true: files('pci-stub.c'))
diff --git a/hw/remote/meson.build b/hw/remote/meson.build
index a3aa29aaf17..41eb4971d98 100644
--- a/hw/remote/meson.build
+++ b/hw/remote/meson.build
@@ -11,7 +11,6 @@ remote_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('iommu.c'))
 remote_ss.add(when: 'CONFIG_VFIO_USER_SERVER', if_true: libvfio_user_dep)
 remote_ss.add(when: 'CONFIG_VFIO_USER_SERVER', if_true: files('vfio-user-obj.c'),
               if_false: files('vfio-user-obj-stub.c'))
-remote_ss.add(when: 'CONFIG_ALL', if_true: files('vfio-user-obj-stub.c'))
 
 specific_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('memory.c'))
 specific_ss.add(when: 'CONFIG_MULTIPROCESS', if_true: files('proxy-memory-listener.c'))
diff --git a/hw/smbios/meson.build b/hw/smbios/meson.build
index 6eeae4b35c2..70469674621 100644
--- a/hw/smbios/meson.build
+++ b/hw/smbios/meson.build
@@ -6,8 +6,3 @@ smbios_ss.add(when: 'CONFIG_IPMI',
 
 system_ss.add_all(when: 'CONFIG_SMBIOS', if_true: smbios_ss)
 system_ss.add(when: 'CONFIG_SMBIOS', if_false: files('smbios-stub.c'))
-
-system_ss.add(when: 'CONFIG_ALL', if_true: files(
-  'smbios-stub.c',
-  'smbios_type_38-stub.c',
-))
diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build
index c0055a78326..c8c1001451d 100644
--- a/hw/virtio/meson.build
+++ b/hw/virtio/meson.build
@@ -74,8 +74,6 @@ specific_virtio_ss.add_all(when: 'CONFIG_VIRTIO_PCI', if_true: virtio_pci_ss)
 system_ss.add_all(when: 'CONFIG_VIRTIO', if_true: system_virtio_ss)
 system_ss.add(when: 'CONFIG_VIRTIO', if_false: files('vhost-stub.c'))
 system_ss.add(when: 'CONFIG_VIRTIO', if_false: files('virtio-stub.c'))
-system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost-stub.c'))
-system_ss.add(when: 'CONFIG_ALL', if_true: files('virtio-stub.c'))
 system_ss.add(files('virtio-hmp-cmds.c'))
 
 specific_ss.add_all(when: 'CONFIG_VIRTIO', if_true: specific_virtio_ss)
diff --git a/meson.build b/meson.build
index 7aa06dc7c1b..6e5a8a5b48e 100644
--- a/meson.build
+++ b/meson.build
@@ -2888,7 +2888,6 @@ minikconf = find_program('scripts/minikconf.py')
 
 config_all = {}
 config_all_devices = {}
-config_all_disas = {}
 config_devices_mak_list = []
 config_devices_h = {}
 config_target_h = {}
@@ -3014,7 +3013,6 @@ foreach target : target_dirs
     if host_arch.startswith(k) or config_target['TARGET_BASE_ARCH'].startswith(k)
       foreach sym: v
         config_target += { sym: 'y' }
-        config_all_disas += { sym: 'y' }
       endforeach
     endif
   endforeach
@@ -3073,24 +3071,6 @@ foreach target : target_dirs
 endforeach
 target_dirs = actual_target_dirs
 
-# This configuration is used to build files that are shared by
-# multiple binaries, and then extracted out of the "common"
-# static_library target.
-#
-# We do not use all_sources()/all_dependencies(), because it would
-# build literally all source files, including devices only used by
-# targets that are not built for this compilation.  The CONFIG_ALL
-# pseudo symbol replaces it.
-
-config_all += config_all_devices
-config_all += config_all_disas
-config_all += {
-  'CONFIG_XEN': xen.found(),
-  'CONFIG_SYSTEM_ONLY': have_system,
-  'CONFIG_USER_ONLY': have_user,
-  'CONFIG_ALL': true,
-}
-
 target_configs_h = []
 foreach target: target_dirs
   target_configs_h += config_target_h[target]
@@ -3556,7 +3536,7 @@ foreach d, list : modules
 
   foreach m, module_ss : list
     if enable_modules
-      module_ss = module_ss.apply(config_all, strict: false)
+      module_ss = module_ss.apply(config_all_devices, strict: false)
       sl = static_library(d + '-' + m, [genh, module_ss.sources()],
                           dependencies: [modulecommon, module_ss.dependencies()], pic: true)
       if d == 'block'
@@ -3751,13 +3731,15 @@ common_ss.add(qom, qemuutil)
 common_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: [system_ss])
 common_ss.add_all(when: 'CONFIG_USER_ONLY', if_true: user_ss)
 
-common_all = common_ss.apply(config_all, strict: false)
+# Note that this library is never used directly (only through extract_objects)
+# and is not built by default; therefore, source files not used by the build
+# configuration will be in build.ninja, but are never built by default.
 common_all = static_library('common',
                             build_by_default: false,
-                            sources: common_all.sources() + genh,
+                            sources: common_ss.all_sources() + genh,
                             include_directories: common_user_inc,
                             implicit_include_directories: false,
-                            dependencies: common_all.dependencies(),
+                            dependencies: common_ss.all_dependencies(),
                             name_suffix: 'fa')
 
 feature_to_c = find_program('scripts/feature_to_c.py')
@@ -4230,7 +4212,7 @@ if have_system
   if xen.found()
     summary_info += {'xen ctrl version':  xen.version()}
   endif
-  summary_info += {'Xen emulation':     config_all.has_key('CONFIG_XEN_EMU')}
+  summary_info += {'Xen emulation':     config_all_devices.has_key('CONFIG_XEN_EMU')}
 endif
 summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
 if config_all.has_key('CONFIG_TCG')
diff --git a/net/meson.build b/net/meson.build
index ce99bd4447f..a53f18ad7b4 100644
--- a/net/meson.build
+++ b/net/meson.build
@@ -41,7 +41,6 @@ system_ss.add(when: libxdp, if_true: files('af-xdp.c'))
 
 if have_vhost_net_user
   system_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('vhost-user.c'), if_false: files('vhost-user-stub.c'))
-  system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost-user-stub.c'))
 endif
 
 if targetos == 'windows'
@@ -57,7 +56,6 @@ else
 endif
 if have_vhost_net_vdpa
   system_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('vhost-vdpa.c'), if_false: files('vhost-vdpa-stub.c'))
-  system_ss.add(when: 'CONFIG_ALL', if_true: files('vhost-vdpa-stub.c'))
 endif
 
 vmnet_files = files(
-- 
2.43.0

[PULL 44/46] meson: rename config_all

[Paolo Bonzini]

config_all now lists only accelerators, rename it to indicate its actual
content.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/mips/meson.build     |  2 +-
 meson.build             | 16 ++++++++--------
 target/arm/meson.build  |  2 +-
 target/mips/meson.build |  2 +-
 tests/fp/meson.build    |  2 +-
 tests/meson.build       |  2 +-
 tests/qtest/meson.build |  8 ++++----
 7 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/hw/mips/meson.build b/hw/mips/meson.build
index 900613fc087..f06d88f3430 100644
--- a/hw/mips/meson.build
+++ b/hw/mips/meson.build
@@ -5,7 +5,7 @@ mips_ss.add(when: 'CONFIG_LOONGSON3V', if_true: files('loongson3_bootp.c', 'loon
 mips_ss.add(when: 'CONFIG_MALTA', if_true: files('malta.c'))
 mips_ss.add(when: 'CONFIG_MIPS_CPS', if_true: files('cps.c'))
 
-if 'CONFIG_TCG' in config_all
+if 'CONFIG_TCG' in config_all_accel
 mips_ss.add(when: 'CONFIG_JAZZ', if_true: files('jazz.c'))
 mips_ss.add(when: 'CONFIG_MIPSSIM', if_true: files('mipssim.c'))
 mips_ss.add(when: 'CONFIG_FULOONG', if_true: files('fuloong2e.c'))
diff --git a/meson.build b/meson.build
index 6e5a8a5b48e..754c469ec98 100644
--- a/meson.build
+++ b/meson.build
@@ -2886,7 +2886,7 @@ endif
 
 minikconf = find_program('scripts/minikconf.py')
 
-config_all = {}
+config_all_accel = {}
 config_all_devices = {}
 config_devices_mak_list = []
 config_devices_h = {}
@@ -2974,7 +2974,7 @@ foreach target : target_dirs
   foreach sym: accelerators
     if sym == 'CONFIG_TCG' or target in accelerator_targets.get(sym, [])
       config_target += { sym: 'y' }
-      config_all += { sym: 'y' }
+      config_all_accel += { sym: 'y' }
       if target in modular_tcg
         config_target += { 'CONFIG_TCG_MODULAR': 'y' }
       else
@@ -4204,18 +4204,18 @@ endif
 # Targets and accelerators
 summary_info = {}
 if have_system
-  summary_info += {'KVM support':       config_all.has_key('CONFIG_KVM')}
-  summary_info += {'HVF support':       config_all.has_key('CONFIG_HVF')}
-  summary_info += {'WHPX support':      config_all.has_key('CONFIG_WHPX')}
-  summary_info += {'NVMM support':      config_all.has_key('CONFIG_NVMM')}
+  summary_info += {'KVM support':       config_all_accel.has_key('CONFIG_KVM')}
+  summary_info += {'HVF support':       config_all_accel.has_key('CONFIG_HVF')}
+  summary_info += {'WHPX support':      config_all_accel.has_key('CONFIG_WHPX')}
+  summary_info += {'NVMM support':      config_all_accel.has_key('CONFIG_NVMM')}
   summary_info += {'Xen support':       xen.found()}
   if xen.found()
     summary_info += {'xen ctrl version':  xen.version()}
   endif
   summary_info += {'Xen emulation':     config_all_devices.has_key('CONFIG_XEN_EMU')}
 endif
-summary_info += {'TCG support':       config_all.has_key('CONFIG_TCG')}
-if config_all.has_key('CONFIG_TCG')
+summary_info += {'TCG support':       config_all_accel.has_key('CONFIG_TCG')}
+if config_all_accel.has_key('CONFIG_TCG')
   if get_option('tcg_interpreter')
     summary_info += {'TCG backend':   'TCI (TCG with bytecode interpreter, slow)'}
   else
diff --git a/target/arm/meson.build b/target/arm/meson.build
index d6c3902e676..46b5a21eb31 100644
--- a/target/arm/meson.build
+++ b/target/arm/meson.build
@@ -28,7 +28,7 @@ arm_system_ss.add(files(
 
 subdir('hvf')
 
-if 'CONFIG_TCG' in config_all
+if 'CONFIG_TCG' in config_all_accel
    subdir('tcg')
 else
     arm_ss.add(files('tcg-stubs.c'))
diff --git a/target/mips/meson.build b/target/mips/meson.build
index e57ef24ecf4..a26d1e1f792 100644
--- a/target/mips/meson.build
+++ b/target/mips/meson.build
@@ -12,7 +12,7 @@ if have_system
   subdir('sysemu')
 endif
 
-if 'CONFIG_TCG' in config_all
+if 'CONFIG_TCG' in config_all_accel
   subdir('tcg')
 endif
 
diff --git a/tests/fp/meson.build b/tests/fp/meson.build
index cbc17392d67..9ef322afc42 100644
--- a/tests/fp/meson.build
+++ b/tests/fp/meson.build
@@ -1,4 +1,4 @@
-if 'CONFIG_TCG' not in config_all
+if 'CONFIG_TCG' not in config_all_accel
   subdir_done()
 endif
 # There are namespace pollution issues on Windows, due to osdep.h
diff --git a/tests/meson.build b/tests/meson.build
index 9996a293fbb..32cc15a3ef7 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -76,7 +76,7 @@ endif
 
 subdir('decode')
 
-if 'CONFIG_TCG' in config_all
+if 'CONFIG_TCG' in config_all_accel
   subdir('fp')
 endif
 
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 40a8bb043e4..565eff4c0a2 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -155,8 +155,8 @@ qtests_ppc = \
   qtests_filter + \
   (config_all_devices.has_key('CONFIG_ISA_TESTDEV') ? ['endianness-test'] : []) +            \
   (config_all_devices.has_key('CONFIG_M48T59') ? ['m48t59-test'] : []) +                     \
-  (config_all.has_key('CONFIG_TCG') ? ['prom-env-test'] : []) +                              \
-  (config_all.has_key('CONFIG_TCG') ? ['boot-serial-test'] : []) +                           \
+  (config_all_accel.has_key('CONFIG_TCG') ? ['prom-env-test'] : []) +                              \
+  (config_all_accel.has_key('CONFIG_TCG') ? ['boot-serial-test'] : []) +                           \
   ['boot-order-test']
 
 qtests_ppc64 = \
@@ -213,12 +213,12 @@ qtests_arm = \
 # TODO: once aarch64 TCG is fixed on ARM 32 bit host, make bios-tables-test unconditional
 qtests_aarch64 = \
   (cpu != 'arm' and unpack_edk2_blobs ? ['bios-tables-test'] : []) +                            \
-  (config_all.has_key('CONFIG_TCG') and config_all_devices.has_key('CONFIG_TPM_TIS_SYSBUS') ?            \
+  (config_all_accel.has_key('CONFIG_TCG') and config_all_devices.has_key('CONFIG_TPM_TIS_SYSBUS') ?            \
     ['tpm-tis-device-test', 'tpm-tis-device-swtpm-test'] : []) +                                         \
   (config_all_devices.has_key('CONFIG_XLNX_ZYNQMP_ARM') ? ['xlnx-can-test', 'fuzz-xlnx-dp-test'] : []) + \
   (config_all_devices.has_key('CONFIG_XLNX_VERSAL') ? ['xlnx-canfd-test', 'xlnx-versal-trng-test'] : []) + \
   (config_all_devices.has_key('CONFIG_RASPI') ? ['bcm2835-dma-test'] : []) +  \
-  (config_all.has_key('CONFIG_TCG') and                                            \
+  (config_all_accel.has_key('CONFIG_TCG') and                                            \
    config_all_devices.has_key('CONFIG_TPM_TIS_I2C') ? ['tpm-tis-i2c-test'] : []) + \
   ['arm-cpu-features',
    'numa-test',
-- 
2.43.0

[PULL 45/46] configure, meson: rename targetos to host_os

[Paolo Bonzini]

This variable is about the host OS, not the target.  It is used a lot
more since the Meson conversion, but the original sin dates back to 2003.
Time to fix it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 accel/tcg/meson.build                |   2 +-
 backends/meson.build                 |   4 +-
 block/meson.build                    |   4 +-
 bsd-user/meson.build                 |   2 +-
 chardev/meson.build                  |   4 +-
 configure                            |  58 ++++----
 contrib/ivshmem-client/meson.build   |   2 +-
 contrib/ivshmem-server/meson.build   |   2 +-
 contrib/vhost-user-blk/meson.build   |   2 +-
 contrib/vhost-user-input/meson.build |   2 +-
 contrib/vhost-user-scsi/meson.build  |   2 +-
 docs/devel/kconfig.rst               |   2 +-
 fsdev/meson.build                    |   2 +-
 hw/9pfs/meson.build                  |   4 +-
 hw/display/meson.build               |   2 +-
 hw/ppc/meson.build                   |   2 +-
 hw/usb/meson.build                   |   4 +-
 meson.build                          | 206 +++++++++++++--------------
 net/can/meson.build                  |   2 +-
 net/meson.build                      |   8 +-
 plugins/meson.build                  |   4 +-
 qga/meson.build                      |  16 +--
 scsi/meson.build                     |   2 +-
 system/meson.build                   |   4 +-
 tests/fp/meson.build                 |   2 +-
 tests/meson.build                    |   2 +-
 tests/plugin/meson.build             |   2 +-
 tests/qemu-iotests/meson.build       |   2 +-
 tests/qtest/meson.build              |  10 +-
 tests/unit/meson.build               |   8 +-
 ui/dbus-display1.xml                 |  10 +-
 ui/meson.build                       |   8 +-
 util/meson.build                     |   8 +-
 33 files changed, 197 insertions(+), 197 deletions(-)

diff --git a/accel/tcg/meson.build b/accel/tcg/meson.build
index 1dad6bbbfbd..d25638d6c15 100644
--- a/accel/tcg/meson.build
+++ b/accel/tcg/meson.build
@@ -17,7 +17,7 @@ if get_option('plugins')
   tcg_ss.add(files('plugin-gen.c'))
 endif
 tcg_ss.add(when: libdw, if_true: files('debuginfo.c'))
-if targetos == 'linux'
+if host_os == 'linux'
   tcg_ss.add(files('perf.c'))
 endif
 specific_ss.add_all(when: 'CONFIG_TCG', if_true: tcg_ss)
diff --git a/backends/meson.build b/backends/meson.build
index 6dee4e9203b..8b2b111497f 100644
--- a/backends/meson.build
+++ b/backends/meson.build
@@ -10,11 +10,11 @@ system_ss.add([files(
   'confidential-guest-support.c',
 ), numa])
 
-if targetos != 'windows'
+if host_os != 'windows'
   system_ss.add(files('rng-random.c'))
   system_ss.add(files('hostmem-file.c'))
 endif
-if targetos == 'linux'
+if host_os == 'linux'
   system_ss.add(files('hostmem-memfd.c'))
 endif
 if keyutils.found()
diff --git a/block/meson.build b/block/meson.build
index ddea1e40070..e1f03fd773e 100644
--- a/block/meson.build
+++ b/block/meson.build
@@ -88,13 +88,13 @@ if get_option('parallels').allowed()
   block_ss.add(files('parallels.c', 'parallels-ext.c'))
 endif
 
-if targetos == 'windows'
+if host_os == 'windows'
   block_ss.add(files('file-win32.c', 'win32-aio.c'))
 else
   block_ss.add(files('file-posix.c'), coref, iokit)
 endif
 block_ss.add(when: libiscsi, if_true: files('iscsi-opts.c'))
-if targetos == 'linux'
+if host_os == 'linux'
   block_ss.add(files('nvme.c'))
 endif
 if get_option('replication').allowed()
diff --git a/bsd-user/meson.build b/bsd-user/meson.build
index c6bfd3b2b53..39bad0ae33e 100644
--- a/bsd-user/meson.build
+++ b/bsd-user/meson.build
@@ -24,6 +24,6 @@ kvm = cc.find_library('kvm', required: true)
 bsd_user_ss.add(elf, procstat, kvm)
 
 # Pull in the OS-specific build glue, if any
-subdir(targetos)
+subdir(host_os)
 
 specific_ss.add_all(when: 'CONFIG_BSD_USER', if_true: bsd_user_ss)
diff --git a/chardev/meson.build b/chardev/meson.build
index db6840b71af..c80337d15fa 100644
--- a/chardev/meson.build
+++ b/chardev/meson.build
@@ -12,7 +12,7 @@ chardev_ss.add(files(
   'char-udp.c',
   'char.c',
 ))
-if targetos == 'windows'
+if host_os == 'windows'
   chardev_ss.add(files(
     'char-console.c',
     'char-win-stdio.c',
@@ -23,7 +23,7 @@ else
       'char-fd.c',
       'char-pty.c',
     ), util)
-  if targetos in ['linux', 'gnu/kfreebsd', 'freebsd', 'dragonfly']
+  if host_os in ['linux', 'gnu/kfreebsd', 'freebsd', 'dragonfly']
     chardev_ss.add(files('char-parallel.c'))
   endif
 endif
diff --git a/configure b/configure
index 0128fd30ea8..21ab9a64e98 100755
--- a/configure
+++ b/configure
@@ -334,30 +334,30 @@ EOF
 }
 
 if check_define __linux__ ; then
-  targetos=linux
+  host_os=linux
 elif check_define _WIN32 ; then
-  targetos=windows
+  host_os=windows
 elif check_define __OpenBSD__ ; then
-  targetos=openbsd
+  host_os=openbsd
 elif check_define __sun__ ; then
-  targetos=sunos
+  host_os=sunos
 elif check_define __HAIKU__ ; then
-  targetos=haiku
+  host_os=haiku
 elif check_define __FreeBSD__ ; then
-  targetos=freebsd
+  host_os=freebsd
 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
-  targetos=gnu/kfreebsd
+  host_os=gnu/kfreebsd
 elif check_define __DragonFly__ ; then
-  targetos=dragonfly
+  host_os=dragonfly
 elif check_define __NetBSD__; then
-  targetos=netbsd
+  host_os=netbsd
 elif check_define __APPLE__; then
-  targetos=darwin
+  host_os=darwin
 else
   # This is a fatal error, but don't report it yet, because we
   # might be going to just print the --help text, or it might
   # be the result of a missing compiler.
-  targetos=bogus
+  host_os=bogus
 fi
 
 if test ! -z "$cpu" ; then
@@ -573,13 +573,13 @@ do
     fi
 done
 
-if test "$targetos" = "windows" ; then
+if test "$host_os" = "windows" ; then
   EXESUF=".exe"
 fi
 
 meson_option_build_array() {
   printf '['
-  (if test "$targetos" = windows; then
+  (if test "$host_os" = windows; then
     IFS=\;
   else
     IFS=:
@@ -802,7 +802,7 @@ mak_wilds=""
 
 if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
     if [ "$linux_user" != no ]; then
-        if [ "$targetos" = linux ]; then
+        if [ "$host_os" = linux ]; then
             linux_user=yes
         elif [ "$linux_user" = yes ]; then
             error_exit "linux-user not supported on this architecture"
@@ -813,9 +813,9 @@ if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; the
     fi
     if [ "$bsd_user" != no ]; then
         if [ "$bsd_user" = "" ]; then
-            test $targetos = freebsd && bsd_user=yes
+            test $host_os = freebsd && bsd_user=yes
         fi
-        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
+        if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$host_os" ]; then
             error_exit "bsd-user not supported on this host OS"
         fi
         if [ "$bsd_user" = "yes" ]; then
@@ -998,7 +998,7 @@ if test -z "$ninja"; then
     fi
 fi
 
-if test "$targetos" = "bogus"; then
+if test "$host_os" = "bogus"; then
     # Now that we know that we're not printing the help and that
     # the compiler works (so the results of the check_defines we used
     # to identify the OS are reliable), if we didn't recognize the
@@ -1007,7 +1007,7 @@ if test "$targetos" = "bogus"; then
 fi
 
 # test for any invalid configuration combinations
-if test "$targetos" = "windows" && ! has "$dlltool"; then
+if test "$host_os" = "windows" && ! has "$dlltool"; then
   if test "$plugins" = "yes"; then
     error_exit "TCG plugins requires dlltool to build on Windows platforms"
   fi
@@ -1041,7 +1041,7 @@ static THREAD int tls_var;
 int main(void) { return tls_var; }
 EOF
 
-if test "$targetos" = windows || test "$targetos" = haiku; then
+if test "$host_os" = windows || test "$host_os" = haiku; then
   if test "$pie" = "yes"; then
     error_exit "PIE not available due to missing OS support"
   fi
@@ -1541,8 +1541,8 @@ echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
 
 # Mac OS X ships with a broken assembler
 if have_target i386-softmmu x86_64-softmmu && \
-        test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
-        test "$targetos" != "haiku" && \
+        test "$host_os" != "darwin" && test "$host_os" != "sunos" && \
+        test "$host_os" != "haiku" && \
         probe_target_compiler i386-softmmu; then
     subdirs="$subdirs pc-bios/optionrom"
     config_mak=pc-bios/optionrom/config.mak
@@ -1606,7 +1606,7 @@ echo "NINJA=$ninja" >> $config_host_mak
 echo "EXESUF=$EXESUF" >> $config_host_mak
 
 # use included Linux headers for KVM architectures
-if test "$targetos" = "linux" && test -n "$linux_arch"; then
+if test "$host_os" = "linux" && test -n "$linux_arch"; then
   symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
 fi
 
@@ -1629,13 +1629,13 @@ echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
 echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
 echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
 echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
-if test "$targetos" = windows; then
+if test "$host_os" = windows; then
   echo "DLLTOOL=$dlltool" >> contrib/plugins/$config_host_mak
 fi
-if test "$targetos" = darwin; then
+if test "$host_os" = darwin; then
   echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
 fi
-if test "$targetos" = windows; then
+if test "$host_os" = windows; then
   echo "CONFIG_WIN32=y" >> contrib/plugins/$config_host_mak
 fi
 
@@ -1715,7 +1715,7 @@ if test "$skip_meson" = no; then
   echo "# environment defaults, can still be overridden on " >> $cross
   echo "# the command line" >> $cross
   if test -e "$source_path/.git" && \
-      { test "$targetos" = linux || test "$targetos" = "windows"; }; then
+      { test "$host_os" = linux || test "$host_os" = "windows"; }; then
       echo 'werror = true' >> $cross
   fi
   echo "[project options]" >> $cross
@@ -1752,7 +1752,7 @@ if test "$skip_meson" = no; then
   echo "windmc = [$(meson_quote $windmc)]" >> $cross
   if test "$cross_compile" = "yes"; then
     echo "[host_machine]" >> $cross
-    echo "system = '$targetos'" >> $cross
+    echo "system = '$host_os'" >> $cross
     case "$cpu" in
         i386)
             echo "cpu_family = 'x86'" >> $cross
@@ -1778,8 +1778,8 @@ if test "$skip_meson" = no; then
   fi
   mv $cross config-meson.cross
   meson_add_machine_file config-meson.cross
-  if test -f "$source_path/configs/meson/$targetos.txt"; then
-    meson_add_machine_file $source_path/configs/meson/$targetos.txt
+  if test -f "$source_path/configs/meson/$host_os.txt"; then
+    meson_add_machine_file $source_path/configs/meson/$host_os.txt
   fi
 
   rm -rf meson-private meson-info meson-logs
diff --git a/contrib/ivshmem-client/meson.build b/contrib/ivshmem-client/meson.build
index ce8dcca84dd..3c8b09af4bf 100644
--- a/contrib/ivshmem-client/meson.build
+++ b/contrib/ivshmem-client/meson.build
@@ -1,4 +1,4 @@
 executable('ivshmem-client', files('ivshmem-client.c', 'main.c'), genh,
            dependencies: glib,
-           build_by_default: targetos == 'linux',
+           build_by_default: host_os == 'linux',
            install: false)
diff --git a/contrib/ivshmem-server/meson.build b/contrib/ivshmem-server/meson.build
index c6c3c82e89f..1c8fea6594d 100644
--- a/contrib/ivshmem-server/meson.build
+++ b/contrib/ivshmem-server/meson.build
@@ -1,4 +1,4 @@
 executable('ivshmem-server', files('ivshmem-server.c', 'main.c'), genh,
            dependencies: [qemuutil, rt],
-           build_by_default: targetos == 'linux',
+           build_by_default: host_os == 'linux',
            install: false)
diff --git a/contrib/vhost-user-blk/meson.build b/contrib/vhost-user-blk/meson.build
index dcb9e2ffcd0..ac1eece37a4 100644
--- a/contrib/vhost-user-blk/meson.build
+++ b/contrib/vhost-user-blk/meson.build
@@ -1,4 +1,4 @@
 executable('vhost-user-blk', files('vhost-user-blk.c'),
            dependencies: [qemuutil, vhost_user],
-           build_by_default: targetos == 'linux',
+           build_by_default: host_os == 'linux',
            install: false)
diff --git a/contrib/vhost-user-input/meson.build b/contrib/vhost-user-input/meson.build
index 21a9ed4f15e..840d866594b 100644
--- a/contrib/vhost-user-input/meson.build
+++ b/contrib/vhost-user-input/meson.build
@@ -1,4 +1,4 @@
 executable('vhost-user-input', files('main.c'),
            dependencies: [qemuutil, vhost_user],
-           build_by_default: targetos == 'linux',
+           build_by_default: host_os == 'linux',
            install: false)
diff --git a/contrib/vhost-user-scsi/meson.build b/contrib/vhost-user-scsi/meson.build
index cc893f6f203..44be04853e4 100644
--- a/contrib/vhost-user-scsi/meson.build
+++ b/contrib/vhost-user-scsi/meson.build
@@ -1,6 +1,6 @@
 if libiscsi.found()
   executable('vhost-user-scsi', files('vhost-user-scsi.c'),
              dependencies: [qemuutil, libiscsi, vhost_user],
-             build_by_default: targetos == 'linux',
+             build_by_default: host_os == 'linux',
              install: false)
 endif
diff --git a/docs/devel/kconfig.rst b/docs/devel/kconfig.rst
index 73f52de1067..ccb9a46bd77 100644
--- a/docs/devel/kconfig.rst
+++ b/docs/devel/kconfig.rst
@@ -316,6 +316,6 @@ variable::
 
     host_kconfig = \
       (have_tpm ? ['CONFIG_TPM=y'] : []) + \
-      (targetos == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
+      (host_os == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
       (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
       ...
diff --git a/fsdev/meson.build b/fsdev/meson.build
index db67530d7f2..e20d7255e1e 100644
--- a/fsdev/meson.build
+++ b/fsdev/meson.build
@@ -5,7 +5,7 @@ fsdev_ss.add(when: ['CONFIG_FSDEV_9P'], if_true: files(
   '9p-marshal.c',
   'qemu-fsdev.c',
 ), if_false: files('qemu-fsdev-dummy.c'))
-if targetos in ['linux', 'darwin']
+if host_os in ['linux', 'darwin']
   system_ss.add_all(fsdev_ss)
 endif
 
diff --git a/hw/9pfs/meson.build b/hw/9pfs/meson.build
index 3eee7c268a9..f1b62fa8c80 100644
--- a/hw/9pfs/meson.build
+++ b/hw/9pfs/meson.build
@@ -13,9 +13,9 @@ fs_ss.add(files(
   'coth.c',
   'coxattr.c',
 ))
-if targetos == 'darwin'
+if host_os == 'darwin'
   fs_ss.add(files('9p-util-darwin.c'))
-elif targetos == 'linux'
+elif host_os == 'linux'
   fs_ss.add(files('9p-util-linux.c'))
 endif
 fs_ss.add(when: 'CONFIG_XEN_BUS', if_true: files('xen-9p-backend.c'))
diff --git a/hw/display/meson.build b/hw/display/meson.build
index ac0159c516e..f93a69f70f4 100644
--- a/hw/display/meson.build
+++ b/hw/display/meson.build
@@ -69,7 +69,7 @@ if config_all_devices.has_key('CONFIG_VIRTIO_GPU')
   virtio_gpu_ss = ss.source_set()
   virtio_gpu_ss.add(when: 'CONFIG_VIRTIO_GPU',
                     if_true: [files('virtio-gpu-base.c', 'virtio-gpu.c'), pixman])
-  if targetos == 'linux'
+  if host_os == 'linux'
     virtio_gpu_ss.add(files('virtio-gpu-udmabuf.c'))
   else
     virtio_gpu_ss.add(files('virtio-gpu-udmabuf-stubs.c'))
diff --git a/hw/ppc/meson.build b/hw/ppc/meson.build
index 3dedcf3043d..eba3406e7f3 100644
--- a/hw/ppc/meson.build
+++ b/hw/ppc/meson.build
@@ -34,7 +34,7 @@ ppc_ss.add(when: ['CONFIG_PSERIES', 'CONFIG_TCG'], if_true: files(
   'spapr_softmmu.c',
 ))
 ppc_ss.add(when: 'CONFIG_SPAPR_RNG', if_true: files('spapr_rng.c'))
-if targetos == 'linux'
+if host_os == 'linux'
   ppc_ss.add(when: 'CONFIG_PSERIES', if_true: files(
     'spapr_pci_vfio.c',
   ))
diff --git a/hw/usb/meson.build b/hw/usb/meson.build
index b7755b638fc..2c13c528785 100644
--- a/hw/usb/meson.build
+++ b/hw/usb/meson.build
@@ -44,7 +44,7 @@ system_ss.add(when: 'CONFIG_USB_STORAGE_UAS', if_true: files('dev-uas.c'))
 system_ss.add(when: 'CONFIG_USB_AUDIO', if_true: files('dev-audio.c'))
 system_ss.add(when: 'CONFIG_USB_SERIAL', if_true: files('dev-serial.c'))
 system_ss.add(when: 'CONFIG_USB_NETWORK', if_true: files('dev-network.c'))
-if targetos != 'windows'
+if host_os != 'windows'
   system_ss.add(when: 'CONFIG_USB_STORAGE_MTP', if_true: files('dev-mtp.c'))
 endif
 
@@ -60,7 +60,7 @@ endif
 
 # U2F
 system_ss.add(when: 'CONFIG_USB_U2F', if_true: files('u2f.c'))
-if targetos == 'linux'
+if host_os == 'linux'
   system_ss.add(when: 'CONFIG_USB_U2F', if_true: [libudev, files('u2f-passthru.c')])
 endif
 if u2f.found()
diff --git a/meson.build b/meson.build
index 754c469ec98..44bc5bf0c0e 100644
--- a/meson.build
+++ b/meson.build
@@ -18,7 +18,7 @@ keyval = import('keyval')
 ss = import('sourceset')
 fs = import('fs')
 
-targetos = host_machine.system()
+host_os = host_machine.system()
 config_host = keyval.load(meson.current_build_dir() / 'config-host.mak')
 
 # Temporary directory used for files created while
@@ -61,11 +61,11 @@ python = import('python').find_installation()
 
 cc = meson.get_compiler('c')
 all_languages = ['c']
-if targetos == 'windows' and add_languages('cpp', required: false, native: false)
+if host_os == 'windows' and add_languages('cpp', required: false, native: false)
   all_languages += ['cpp']
   cxx = meson.get_compiler('cpp')
 endif
-if targetos == 'darwin' and \
+if host_os == 'darwin' and \
    add_languages('objc', required: get_option('cocoa'), native: false)
   all_languages += ['objc']
   objc = meson.get_compiler('objc')
@@ -120,7 +120,7 @@ if get_option('fuzzing') and get_option('fuzzing_engine') == '' and \
 endif
 
 # Tracing backends
-if 'ftrace' in get_option('trace_backends') and targetos != 'linux'
+if 'ftrace' in get_option('trace_backends') and host_os != 'linux'
   error('ftrace is supported only on Linux')
 endif
 if 'syslog' in get_option('trace_backends') and not cc.compiles('''
@@ -135,30 +135,30 @@ endif
 
 # Miscellaneous Linux-only features
 get_option('mpath') \
-  .require(targetos == 'linux', error_message: 'Multipath is supported only on Linux')
+  .require(host_os == 'linux', error_message: 'Multipath is supported only on Linux')
 
 multiprocess_allowed = get_option('multiprocess') \
-  .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
+  .require(host_os == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
   .allowed()
 
 vfio_user_server_allowed = get_option('vfio_user_server') \
-  .require(targetos == 'linux', error_message: 'vfio-user server is supported only on Linux') \
+  .require(host_os == 'linux', error_message: 'vfio-user server is supported only on Linux') \
   .allowed()
 
 have_tpm = get_option('tpm') \
-  .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
+  .require(host_os != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
   .allowed()
 
 # vhost
 have_vhost_user = get_option('vhost_user') \
-  .disable_auto_if(targetos != 'linux') \
-  .require(targetos != 'windows',
+  .disable_auto_if(host_os != 'linux') \
+  .require(host_os != 'windows',
            error_message: 'vhost-user is not available on Windows').allowed()
 have_vhost_vdpa = get_option('vhost_vdpa') \
-  .require(targetos == 'linux',
+  .require(host_os == 'linux',
            error_message: 'vhost-vdpa is only available on Linux').allowed()
 have_vhost_kernel = get_option('vhost_kernel') \
-  .require(targetos == 'linux',
+  .require(host_os == 'linux',
            error_message: 'vhost-kernel is only available on Linux').allowed()
 have_vhost_user_crypto = get_option('vhost_crypto') \
   .require(have_vhost_user,
@@ -187,13 +187,13 @@ have_tools = get_option('tools') \
   .allowed()
 have_ga = get_option('guest_agent') \
   .disable_auto_if(not have_system and not have_tools) \
-  .require(targetos in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
+  .require(host_os in ['sunos', 'linux', 'windows', 'freebsd', 'netbsd', 'openbsd'],
            error_message: 'unsupported OS for QEMU guest agent') \
   .allowed()
 have_block = have_system or have_tools
 
 enable_modules = get_option('modules') \
-  .require(targetos != 'windows',
+  .require(host_os != 'windows',
            error_message: 'Modules are not available for Windows') \
   .require(not get_option('prefer_static'),
            error_message: 'Modules are incompatible with static linking') \
@@ -260,7 +260,7 @@ endif
 
 modular_tcg = []
 # Darwin does not support references to thread-local variables in modules
-if targetos != 'darwin'
+if host_os != 'darwin'
   modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
 endif
 
@@ -300,18 +300,18 @@ qemu_common_flags = [
 qemu_cflags = []
 qemu_ldflags = []
 
-if targetos == 'darwin'
+if host_os == 'darwin'
   # Disable attempts to use ObjectiveC features in os/object.h since they
   # won't work when we're compiling with gcc as a C compiler.
   if compiler.get_id() == 'gcc'
     qemu_common_flags += '-DOS_OBJECT_USE_OBJC=0'
   endif
-elif targetos == 'sunos'
+elif host_os == 'sunos'
   # needed for CMSG_ macros in sys/socket.h
   qemu_common_flags += '-D_XOPEN_SOURCE=600'
   # needed for TIOCWIN* defines in termios.h
   qemu_common_flags += '-D__EXTENSIONS__'
-elif targetos == 'haiku'
+elif host_os == 'haiku'
   qemu_common_flags += ['-DB_USE_POSITIVE_POSIX_ERRORS', '-D_BSD_SOURCE', '-fPIC']
 endif
 
@@ -395,10 +395,10 @@ ucontext_probe = '''
 # For POSIX prefer ucontext, but it's not always possible. The fallback
 # is sigcontext.
 supported_backends = []
-if targetos == 'windows'
+if host_os == 'windows'
   supported_backends += ['windows']
 else
-  if targetos != 'darwin' and cc.links(ucontext_probe)
+  if host_os != 'darwin' and cc.links(ucontext_probe)
     supported_backends += ['ucontext']
   endif
   supported_backends += ['sigaltstack']
@@ -469,13 +469,13 @@ endif
 # The combination is known as "full relro", because .got.plt is read-only too.
 qemu_ldflags += cc.get_supported_link_arguments('-Wl,-z,relro', '-Wl,-z,now')
 
-if targetos == 'windows'
+if host_os == 'windows'
   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--no-seh', '-Wl,--nxcompat')
   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--dynamicbase', '-Wl,--high-entropy-va')
 endif
 
 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
-if targetos != 'sunos' and not get_option('tsan')
+if host_os != 'sunos' and not get_option('tsan')
   qemu_ldflags += cc.get_supported_link_arguments('-Wl,--warn-common')
 endif
 
@@ -585,7 +585,7 @@ warn_flags = [
   '-Wshadow=local',
 ]
 
-if targetos != 'darwin'
+if host_os != 'darwin'
   warn_flags += ['-Wthread-safety']
 endif
 
@@ -605,7 +605,7 @@ if 'objc' in all_languages
   # Note sanitizer flags are not applied to Objective-C sources!
   add_project_arguments(objc.get_supported_arguments(warn_flags), native: false, language: 'objc')
 endif
-if targetos == 'linux'
+if host_os == 'linux'
   add_project_arguments('-isystem', meson.current_source_dir() / 'linux-headers',
                         '-isystem', 'linux-headers',
                         language: all_languages)
@@ -652,7 +652,7 @@ midl = not_found
 widl = not_found
 pathcch = not_found
 host_dsosuf = '.so'
-if targetos == 'windows'
+if host_os == 'windows'
   midl = find_program('midl', required: false)
   widl = find_program('widl', required: false)
   pathcch = cc.find_library('pathcch')
@@ -664,19 +664,19 @@ if targetos == 'windows'
                                       depend_files: files('pc-bios/qemu-nsis.ico'),
                                       include_directories: include_directories('.'))
   host_dsosuf = '.dll'
-elif targetos == 'darwin'
+elif host_os == 'darwin'
   coref = dependency('appleframeworks', modules: 'CoreFoundation')
   iokit = dependency('appleframeworks', modules: 'IOKit', required: false)
   host_dsosuf = '.dylib'
-elif targetos == 'sunos'
+elif host_os == 'sunos'
   socket = [cc.find_library('socket'),
             cc.find_library('nsl'),
             cc.find_library('resolv')]
-elif targetos == 'haiku'
+elif host_os == 'haiku'
   socket = [cc.find_library('posix_error_mapper'),
             cc.find_library('network'),
             cc.find_library('bsd')]
-elif targetos == 'openbsd'
+elif host_os == 'openbsd'
   if get_option('tcg').allowed() and target_dirs.length() > 0
     # Disable OpenBSD W^X if available
     emulator_link_args = cc.get_supported_link_arguments('-Wl,-z,wxneeded')
@@ -688,10 +688,10 @@ endif
 ###############################################
 
 accelerators = []
-if get_option('kvm').allowed() and targetos == 'linux'
+if get_option('kvm').allowed() and host_os == 'linux'
   accelerators += 'CONFIG_KVM'
 endif
-if get_option('whpx').allowed() and targetos == 'windows'
+if get_option('whpx').allowed() and host_os == 'windows'
   if get_option('whpx').enabled() and host_machine.cpu() != 'x86_64'
     error('WHPX requires 64-bit host')
   elif cc.has_header('winhvplatform.h', required: get_option('whpx')) and \
@@ -710,7 +710,7 @@ if get_option('hvf').allowed()
 endif
 
 nvmm = not_found
-if targetos == 'netbsd'
+if host_os == 'netbsd'
   nvmm = cc.find_library('nvmm', required: get_option('nvmm'))
   if nvmm.found()
     accelerators += 'CONFIG_NVMM'
@@ -830,7 +830,7 @@ endif
 have_xen_pci_passthrough = get_option('xen_pci_passthrough') \
   .require(xen.found(),
            error_message: 'Xen PCI passthrough requested but Xen not enabled') \
-  .require(targetos == 'linux',
+  .require(host_os == 'linux',
            error_message: 'Xen PCI passthrough not available on this platform') \
   .require(cpu == 'x86'  or cpu == 'x86_64',
            error_message: 'Xen PCI passthrough not available on this platform') \
@@ -858,7 +858,7 @@ endif
 
 # This workaround is required due to a bug in pkg-config file for glib as it
 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
-if targetos == 'windows' and get_option('prefer_static')
+if host_os == 'windows' and get_option('prefer_static')
   glib_cflags += ['-DGLIB_STATIC_COMPILATION']
 endif
 
@@ -1119,12 +1119,12 @@ if vde.found() and not cc.links('''
 endif
 
 pulse = not_found
-if not get_option('pa').auto() or (targetos == 'linux' and have_system)
+if not get_option('pa').auto() or (host_os == 'linux' and have_system)
   pulse = dependency('libpulse', required: get_option('pa'),
                      method: 'pkg-config')
 endif
 alsa = not_found
-if not get_option('alsa').auto() or (targetos == 'linux' and have_system)
+if not get_option('alsa').auto() or (host_os == 'linux' and have_system)
   alsa = dependency('alsa', required: get_option('alsa'),
                     method: 'pkg-config')
 endif
@@ -1134,7 +1134,7 @@ if not get_option('jack').auto() or have_system
                     method: 'pkg-config')
 endif
 pipewire = not_found
-if not get_option('pipewire').auto() or (targetos == 'linux' and have_system)
+if not get_option('pipewire').auto() or (host_os == 'linux' and have_system)
   pipewire = dependency('libpipewire-0.3', version: '>=0.3.60',
                     required: get_option('pipewire'),
                     method: 'pkg-config')
@@ -1179,7 +1179,7 @@ if not get_option('zstd').auto() or have_block
 endif
 virgl = not_found
 
-have_vhost_user_gpu = have_tools and targetos == 'linux' and pixman.found()
+have_vhost_user_gpu = have_tools and host_os == 'linux' and pixman.found()
 if not get_option('virglrenderer').auto() or have_system or have_vhost_user_gpu
   virgl = dependency('virglrenderer',
                      method: 'pkg-config',
@@ -1204,7 +1204,7 @@ if not get_option('curl').auto() or have_block
                     required: get_option('curl'))
 endif
 libudev = not_found
-if targetos == 'linux' and (have_system or have_tools)
+if host_os == 'linux' and (have_system or have_tools)
   libudev = dependency('libudev',
                        method: 'pkg-config',
                        required: get_option('libudev'))
@@ -1212,7 +1212,7 @@ endif
 
 mpathlibs = [libudev]
 mpathpersist = not_found
-if targetos == 'linux' and have_tools and get_option('mpath').allowed()
+if host_os == 'linux' and have_tools and get_option('mpath').allowed()
   mpath_test_source = '''
     #include <libudev.h>
     #include <mpath_persist.h>
@@ -1283,7 +1283,7 @@ if have_system and get_option('curses').allowed()
       return 0;
     }'''
 
-  curses_dep_list = targetos == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
+  curses_dep_list = host_os == 'windows' ? ['ncurses', 'ncursesw'] : ['ncursesw']
   curses = dependency(curses_dep_list,
                       required: false,
                       method: 'pkg-config')
@@ -1300,13 +1300,13 @@ if have_system and get_option('curses').allowed()
   endif
   if not curses.found()
     has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
-    if targetos != 'windows' and not has_curses_h
+    if host_os != 'windows' and not has_curses_h
       message('Trying with /usr/include/ncursesw')
       curses_compile_args += ['-I/usr/include/ncursesw']
       has_curses_h = cc.has_header('curses.h', args: curses_compile_args)
     endif
     if has_curses_h
-      curses_libname_list = (targetos == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
+      curses_libname_list = (host_os == 'windows' ? ['pdcurses'] : ['ncursesw', 'cursesw'])
       foreach curses_libname : curses_libname_list
         libcurses = cc.find_library(curses_libname,
                                     required: false)
@@ -1529,7 +1529,7 @@ oss = not_found
 if get_option('oss').allowed() and have_system
   if not cc.has_header('sys/soundcard.h')
     # not found
-  elif targetos == 'netbsd'
+  elif host_os == 'netbsd'
     oss = cc.find_library('ossaudio', required: get_option('oss'))
   else
     oss = declare_dependency()
@@ -1542,7 +1542,7 @@ if get_option('oss').allowed() and have_system
   endif
 endif
 dsound = not_found
-if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
+if not get_option('dsound').auto() or (host_os == 'windows' and have_system)
   if cc.has_header('dsound.h')
     dsound = declare_dependency(link_args: ['-lole32', '-ldxguid'])
   endif
@@ -1555,7 +1555,7 @@ if not get_option('dsound').auto() or (targetos == 'windows' and have_system)
 endif
 
 coreaudio = not_found
-if not get_option('coreaudio').auto() or (targetos == 'darwin' and have_system)
+if not get_option('coreaudio').auto() or (host_os == 'darwin' and have_system)
   coreaudio = dependency('appleframeworks', modules: 'CoreAudio',
                          required: get_option('coreaudio'))
 endif
@@ -1910,7 +1910,7 @@ has_statx = cc.has_header_symbol('sys/stat.h', 'STATX_BASIC_STATS', prefix: gnu_
 has_statx_mnt_id = cc.has_header_symbol('sys/stat.h', 'STATX_MNT_ID', prefix: gnu_source_prefix)
 
 have_vhost_user_blk_server = get_option('vhost_user_blk_server') \
-  .require(targetos == 'linux',
+  .require(host_os == 'linux',
            error_message: 'vhost_user_blk_server requires linux') \
   .require(have_vhost_user,
            error_message: 'vhost_user_blk_server requires vhost-user support') \
@@ -1938,18 +1938,18 @@ if get_option('fuse_lseek').allowed()
   endif
 endif
 
-have_libvduse = (targetos == 'linux')
+have_libvduse = (host_os == 'linux')
 if get_option('libvduse').enabled()
-    if targetos != 'linux'
+    if host_os != 'linux'
         error('libvduse requires linux')
     endif
 elif get_option('libvduse').disabled()
     have_libvduse = false
 endif
 
-have_vduse_blk_export = (have_libvduse and targetos == 'linux')
+have_vduse_blk_export = (have_libvduse and host_os == 'linux')
 if get_option('vduse_blk_export').enabled()
-    if targetos != 'linux'
+    if host_os != 'linux'
         error('vduse_blk_export requires linux')
     elif not have_libvduse
         error('vduse_blk_export requires libvduse support')
@@ -2017,7 +2017,7 @@ if have_system
   # Default to native drivers first, OSS second, SDL third
   audio_drivers_priority = \
     [ 'pa', 'coreaudio', 'dsound', 'sndio', 'oss' ] + \
-    (targetos == 'linux' ? [] : [ 'sdl' ])
+    (host_os == 'linux' ? [] : [ 'sdl' ])
   audio_drivers_default = []
   foreach k: audio_drivers_priority
     if audio_drivers_available[k]
@@ -2038,7 +2038,7 @@ endif
 config_host_data.set('CONFIG_AUDIO_DRIVERS',
                      '"' + '", "'.join(audio_drivers_selected) + '", ')
 
-have_host_block_device = (targetos != 'darwin' or
+have_host_block_device = (host_os != 'darwin' or
     cc.has_header('IOKit/storage/IOMedia.h'))
 
 dbus_display = get_option('dbus_display') \
@@ -2049,17 +2049,17 @@ dbus_display = get_option('dbus_display') \
   .allowed()
 
 have_virtfs = get_option('virtfs') \
-    .require(targetos == 'linux' or targetos == 'darwin',
+    .require(host_os == 'linux' or host_os == 'darwin',
              error_message: 'virtio-9p (virtfs) requires Linux or macOS') \
-    .require(targetos == 'linux' or cc.has_function('pthread_fchdir_np'),
+    .require(host_os == 'linux' or cc.has_function('pthread_fchdir_np'),
              error_message: 'virtio-9p (virtfs) on macOS requires the presence of pthread_fchdir_np') \
-    .require(targetos == 'darwin' or libattr.found(),
+    .require(host_os == 'darwin' or libattr.found(),
              error_message: 'virtio-9p (virtfs) on Linux requires libattr-devel') \
     .disable_auto_if(not have_tools and not have_system) \
     .allowed()
 
 have_virtfs_proxy_helper = get_option('virtfs_proxy_helper') \
-    .require(targetos != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
+    .require(host_os != 'darwin', error_message: 'the virtfs proxy helper is incompatible with macOS') \
     .require(have_virtfs, error_message: 'the virtfs proxy helper requires that virtfs is enabled') \
     .disable_auto_if(not have_tools) \
     .require(libcap_ng.found(), error_message: 'the virtfs proxy helper requires libcap-ng') \
@@ -2114,12 +2114,12 @@ if enable_modules
 endif
 
 have_slirp_smbd = get_option('slirp_smbd') \
-  .require(targetos != 'windows', error_message: 'Host smbd not supported on this platform.') \
+  .require(host_os != 'windows', error_message: 'Host smbd not supported on this platform.') \
   .allowed()
 if have_slirp_smbd
   smbd_path = get_option('smbd')
   if smbd_path == ''
-    smbd_path = (targetos == 'sunos' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
+    smbd_path = (host_os == 'sunos' ? '/usr/sfw/sbin/smbd' : '/usr/sbin/smbd')
   endif
   config_host_data.set_quoted('CONFIG_SMBD_COMMAND', smbd_path)
 endif
@@ -2127,7 +2127,7 @@ endif
 config_host_data.set('HOST_' + host_arch.to_upper(), 1)
 
 kvm_targets_c = '""'
-if get_option('kvm').allowed() and targetos == 'linux'
+if get_option('kvm').allowed() and host_os == 'linux'
   kvm_targets_c = '"' + '" ,"'.join(kvm_targets) + '"'
 endif
 config_host_data.set('CONFIG_KVM_TARGETS', kvm_targets_c)
@@ -2140,16 +2140,16 @@ config_host_data.set('CONFIG_MODULE_UPGRADES', get_option('module_upgrades'))
 config_host_data.set('CONFIG_ATTR', libattr.found())
 config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_whitelist_in_tools'))
 config_host_data.set('CONFIG_BRLAPI', brlapi.found())
-config_host_data.set('CONFIG_BSD', targetos in bsd_oses)
+config_host_data.set('CONFIG_BSD', host_os in bsd_oses)
 config_host_data.set('CONFIG_CAPSTONE', capstone.found())
 config_host_data.set('CONFIG_COCOA', cocoa.found())
-config_host_data.set('CONFIG_DARWIN', targetos == 'darwin')
+config_host_data.set('CONFIG_DARWIN', host_os == 'darwin')
 config_host_data.set('CONFIG_FUZZ', get_option('fuzzing'))
 config_host_data.set('CONFIG_GCOV', get_option('b_coverage'))
 config_host_data.set('CONFIG_LIBUDEV', libudev.found())
-config_host_data.set('CONFIG_LINUX', targetos == 'linux')
-config_host_data.set('CONFIG_POSIX', targetos != 'windows')
-config_host_data.set('CONFIG_WIN32', targetos == 'windows')
+config_host_data.set('CONFIG_LINUX', host_os == 'linux')
+config_host_data.set('CONFIG_POSIX', host_os != 'windows')
+config_host_data.set('CONFIG_WIN32', host_os == 'windows')
 config_host_data.set('CONFIG_LZO', lzo.found())
 config_host_data.set('CONFIG_MPATH', mpathpersist.found())
 config_host_data.set('CONFIG_BLKIO', blkio.found())
@@ -2207,7 +2207,7 @@ endif
 config_host_data.set('CONFIG_PIXMAN', pixman.found())
 config_host_data.set('CONFIG_SLIRP', slirp.found())
 config_host_data.set('CONFIG_SNAPPY', snappy.found())
-config_host_data.set('CONFIG_SOLARIS', targetos == 'sunos')
+config_host_data.set('CONFIG_SOLARIS', host_os == 'sunos')
 if get_option('tcg').allowed()
   config_host_data.set('CONFIG_TCG', 1)
   config_host_data.set('CONFIG_TCG_INTERPRETER', tcg_arch == 'tci')
@@ -2308,7 +2308,7 @@ config_host_data.set('HAVE_PTY_H', cc.has_header('pty.h'))
 config_host_data.set('HAVE_SYS_DISK_H', cc.has_header('sys/disk.h'))
 config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
-if targetos == 'windows'
+if host_os == 'windows'
   config_host_data.set('HAVE_AFUNIX_H', cc.has_header('afunix.h'))
 endif
 
@@ -2690,7 +2690,7 @@ config_host_data.set('CONFIG_USBFS', have_linux_user and cc.compiles('''
   int main(void) { return 0; }'''))
 
 have_keyring = get_option('keyring') \
-  .require(targetos == 'linux', error_message: 'keyring is only available on Linux') \
+  .require(host_os == 'linux', error_message: 'keyring is only available on Linux') \
   .require(cc.compiles('''
     #include <errno.h>
     #include <asm/unistd.h>
@@ -2799,9 +2799,9 @@ endif
 
 if get_option('membarrier').disabled()
   have_membarrier = false
-elif targetos == 'windows'
+elif host_os == 'windows'
   have_membarrier = true
-elif targetos == 'linux'
+elif host_os == 'linux'
   have_membarrier = cc.compiles('''
     #include <linux/membarrier.h>
     #include <sys/syscall.h>
@@ -2838,7 +2838,7 @@ config_host_data.set('CONFIG_AF_VSOCK', cc.has_header_symbol(
 
 have_vss = false
 have_vss_sdk = false # old xp/2003 SDK
-if targetos == 'windows' and 'cpp' in all_languages
+if host_os == 'windows' and 'cpp' in all_languages
   have_vss = cxx.compiles('''
     #define __MIDL_user_allocate_free_DEFINED__
     #include <vss.h>
@@ -2849,7 +2849,7 @@ config_host_data.set('HAVE_VSS_SDK', have_vss_sdk)
 
 # Older versions of MinGW do not import _lock_file and _unlock_file properly.
 # This was fixed for v6.0.0 with commit b48e3ac8969d.
-if targetos == 'windows'
+if host_os == 'windows'
   config_host_data.set('HAVE__LOCK_FILE', cc.links('''
     #include <stdio.h>
     int main(void) {
@@ -2859,7 +2859,7 @@ if targetos == 'windows'
     }''', name: '_lock_file and _unlock_file'))
 endif
 
-if targetos == 'windows'
+if host_os == 'windows'
   mingw_has_setjmp_longjmp = cc.links('''
     #include <setjmp.h>
     int main(void) {
@@ -2929,7 +2929,7 @@ host_kconfig = \
   (have_vhost_vdpa ? ['CONFIG_VHOST_VDPA=y'] : []) + \
   (have_vhost_kernel ? ['CONFIG_VHOST_KERNEL=y'] : []) + \
   (have_virtfs ? ['CONFIG_VIRTFS=y'] : []) + \
-  (targetos == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
+  (host_os == 'linux' ? ['CONFIG_LINUX=y'] : []) + \
   (have_pvrdma ? ['CONFIG_PVRDMA=y'] : []) + \
   (multiprocess_allowed ? ['CONFIG_MULTIPROCESS_ALLOWED=y'] : []) + \
   (vfio_user_server_allowed ? ['CONFIG_VFIO_USER_SERVER_ALLOWED=y'] : []) + \
@@ -2943,7 +2943,7 @@ fdt_required = []
 foreach target : target_dirs
   config_target = { 'TARGET_NAME': target.split('-')[0] }
   if target.endswith('linux-user')
-    if targetos != 'linux'
+    if host_os != 'linux'
       if default_targets
         continue
       endif
@@ -2951,7 +2951,7 @@ foreach target : target_dirs
     endif
     config_target += { 'CONFIG_LINUX_USER': 'y' }
   elif target.endswith('bsd-user')
-    if targetos not in bsd_oses
+    if host_os not in bsd_oses
       if default_targets
         continue
       endif
@@ -3132,7 +3132,7 @@ endif
 config_host_data.set('CONFIG_FDT', fdt.found())
 
 vhost_user = not_found
-if targetos == 'linux' and have_vhost_user
+if host_os == 'linux' and have_vhost_user
   libvhost_user = subproject('libvhost-user')
   vhost_user = libvhost_user.get_variable('vhost_user_dep')
 endif
@@ -3456,7 +3456,7 @@ if have_block
 
   # os-posix.c contains POSIX-specific functions used by qemu-storage-daemon,
   # os-win32.c does not
-  if targetos == 'windows'
+  if host_os == 'windows'
     system_ss.add(files('os-win32.c'))
   else
     blockdev_ss.add(files('os-posix.c'))
@@ -3744,7 +3744,7 @@ common_all = static_library('common',
 
 feature_to_c = find_program('scripts/feature_to_c.py')
 
-if targetos == 'darwin'
+if host_os == 'darwin'
   entitlement = find_program('scripts/entitlement.sh')
 endif
 
@@ -3761,7 +3761,7 @@ foreach target : target_dirs
   link_args = emulator_link_args
 
   target_inc = [include_directories('target' / config_target['TARGET_BASE_ARCH'])]
-  if targetos == 'linux'
+  if host_os == 'linux'
     target_inc += include_directories('linux-headers', is_system: true)
   endif
   if target.endswith('-softmmu')
@@ -3791,7 +3791,7 @@ foreach target : target_dirs
     endif
     if 'CONFIG_BSD_USER' in config_target
       base_dir = 'bsd-user'
-      target_inc += include_directories('bsd-user/' / targetos)
+      target_inc += include_directories('bsd-user/' / host_os)
       target_inc += include_directories('bsd-user/host/' / host_arch)
       dir = base_dir / abi
       arch_srcs += files(dir / 'signal.c', dir / 'target_arch_cpu.c')
@@ -3848,7 +3848,7 @@ foreach target : target_dirs
       'sources': files('system/main.c'),
       'dependencies': []
     }]
-    if targetos == 'windows' and (sdl.found() or gtk.found())
+    if host_os == 'windows' and (sdl.found() or gtk.found())
       execs += [{
         'name': 'qemu-system-' + target_name + 'w',
         'win_subsystem': 'windows',
@@ -3875,7 +3875,7 @@ foreach target : target_dirs
   endif
   foreach exe: execs
     exe_name = exe['name']
-    if targetos == 'darwin'
+    if host_os == 'darwin'
       exe_name += '-unsigned'
     endif
 
@@ -3888,7 +3888,7 @@ foreach target : target_dirs
                link_args: link_args,
                win_subsystem: exe['win_subsystem'])
 
-    if targetos == 'darwin'
+    if host_os == 'darwin'
       icon = 'pc-bios/qemu.rsrc'
       build_input = [emulator, files(icon)]
       install_input = [
@@ -3944,7 +3944,7 @@ endforeach
 
 if get_option('plugins')
   install_headers('include/qemu/qemu-plugin.h')
-  if targetos == 'windows'
+  if host_os == 'windows'
     # On windows, we want to deliver the qemu_plugin_api.lib file in the qemu installer,
     # so that plugin authors can compile against it.
     install_data(win32_qemu_plugin_api_lib, install_dir: 'lib')
@@ -3985,7 +3985,7 @@ if have_tools
     subdir('contrib/vhost-user-scsi')
   endif
 
-  if targetos == 'linux'
+  if host_os == 'linux'
     executable('qemu-bridge-helper', files('qemu-bridge-helper.c'),
                dependencies: [qemuutil, libcap_ng],
                install: true,
@@ -4052,7 +4052,7 @@ summary(summary_info, bool_yn: true, section: 'Build environment')
 # Directories
 summary_info += {'Install prefix':    get_option('prefix')}
 summary_info += {'BIOS directory':    qemu_datadir}
-pathsep = targetos == 'windows' ? ';' : ':'
+pathsep = host_os == 'windows' ? ';' : ':'
 summary_info += {'firmware path':     pathsep.join(get_option('qemu_firmwarepath'))}
 summary_info += {'binary directory':  get_option('prefix') / get_option('bindir')}
 summary_info += {'library directory': get_option('prefix') / get_option('libdir')}
@@ -4060,7 +4060,7 @@ summary_info += {'module directory':  qemu_moddir}
 summary_info += {'libexec directory': get_option('prefix') / get_option('libexecdir')}
 summary_info += {'include directory': get_option('prefix') / get_option('includedir')}
 summary_info += {'config directory':  get_option('prefix') / get_option('sysconfdir')}
-if targetos != 'windows'
+if host_os != 'windows'
   summary_info += {'local state directory': get_option('prefix') / get_option('localstatedir')}
   summary_info += {'Manual directory':      get_option('prefix') / get_option('mandir')}
 else
@@ -4083,7 +4083,7 @@ if config_host.has_key('GDB')
 endif
 summary_info += {'iasl':              iasl}
 summary_info += {'genisoimage':       config_host['GENISOIMAGE']}
-if targetos == 'windows' and have_ga
+if host_os == 'windows' and have_ga
   summary_info += {'wixl':            wixl}
 endif
 if slirp.found() and have_system
@@ -4181,7 +4181,7 @@ if get_option('cfi')
 endif
 summary_info += {'strip binaries':    get_option('strip')}
 summary_info += {'sparse':            sparse}
-summary_info += {'mingw32 support':   targetos == 'windows'}
+summary_info += {'mingw32 support':   host_os == 'windows'}
 summary(summary_info, bool_yn: true, section: 'Compilation')
 
 # snarf the cross-compilation information for tests
@@ -4280,7 +4280,7 @@ summary(summary_info, bool_yn: true, section: 'Crypto')
 
 # UI
 summary_info = {}
-if targetos == 'darwin'
+if host_os == 'darwin'
   summary_info += {'Cocoa support':           cocoa}
 endif
 summary_info += {'SDL support':       sdl}
@@ -4304,15 +4304,15 @@ summary(summary_info, bool_yn: true, section: 'User interface')
 
 # Audio backends
 summary_info = {}
-if targetos not in ['darwin', 'haiku', 'windows']
+if host_os not in ['darwin', 'haiku', 'windows']
   summary_info += {'OSS support':     oss}
   summary_info += {'sndio support':   sndio}
-elif targetos == 'darwin'
+elif host_os == 'darwin'
   summary_info += {'CoreAudio support': coreaudio}
-elif targetos == 'windows'
+elif host_os == 'windows'
   summary_info += {'DirectSound support': dsound}
 endif
-if targetos == 'linux'
+if host_os == 'linux'
   summary_info += {'ALSA support':    alsa}
   summary_info += {'PulseAudio support': pulse}
 endif
@@ -4322,7 +4322,7 @@ summary(summary_info, bool_yn: true, section: 'Audio backends')
 
 # Network backends
 summary_info = {}
-if targetos == 'darwin'
+if host_os == 'darwin'
   summary_info += {'vmnet.framework support': vmnet}
 endif
 summary_info += {'AF_XDP support':    libxdp}
@@ -4359,7 +4359,7 @@ summary_info += {'OpenGL support (epoxy)': opengl}
 summary_info += {'GBM':               gbm}
 summary_info += {'libiscsi support':  libiscsi}
 summary_info += {'libnfs support':    libnfs}
-if targetos == 'windows'
+if host_os == 'windows'
   if have_ga
     summary_info += {'QGA VSS support':   have_qga_vss}
   endif
@@ -4401,20 +4401,20 @@ if host_arch == 'unknown'
   endif
 endif
 
-if not supported_oses.contains(targetos)
+if not supported_oses.contains(host_os)
   message()
   warning('UNSUPPORTED HOST OS')
   message()
-  message('Support for host OS ' + targetos + 'is not currently maintained.')
+  message('Support for host OS ' + host_os + 'is not currently maintained.')
   message('configure has succeeded and you can continue to build, but')
   message('the QEMU project does not guarantee that QEMU will compile or')
   message('work on this operating system. You can help by volunteering')
   message('to maintain it and providing a build host for our continuous')
   message('integration setup. This will ensure that future versions of QEMU')
-  message('will keep working on ' + targetos + '.')
+  message('will keep working on ' + host_os + '.')
 endif
 
-if host_arch == 'unknown' or not supported_oses.contains(targetos)
+if host_arch == 'unknown' or not supported_oses.contains(host_os)
   message()
   message('If you want to help supporting QEMU on this platform, please')
   message('contact the developers at qemu-devel@nongnu.org.')
@@ -4428,8 +4428,8 @@ if get_option('relocatable') and \
   warning('bindir not included within prefix, the installation will not be relocatable.')
   actually_reloc = false
 endif
-if not actually_reloc and (targetos == 'windows' or get_option('relocatable'))
-  if targetos == 'windows'
+if not actually_reloc and (host_os == 'windows' or get_option('relocatable'))
+  if host_os == 'windows'
     message()
     warning('Windows installs should usually be relocatable.')
   endif
diff --git a/net/can/meson.build b/net/can/meson.build
index bdf6f8eee16..af3b27921cd 100644
--- a/net/can/meson.build
+++ b/net/can/meson.build
@@ -1,6 +1,6 @@
 can_ss = ss.source_set()
 can_ss.add(files('can_core.c', 'can_host.c'))
-if targetos == 'linux'
+if host_os == 'linux'
   can_ss.add(files('can_socketcan.c'))
 endif
 
diff --git a/net/meson.build b/net/meson.build
index a53f18ad7b4..9432a588e4e 100644
--- a/net/meson.build
+++ b/net/meson.build
@@ -43,13 +43,13 @@ if have_vhost_net_user
   system_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('vhost-user.c'), if_false: files('vhost-user-stub.c'))
 endif
 
-if targetos == 'windows'
+if host_os == 'windows'
   system_ss.add(files('tap-win32.c'))
-elif targetos == 'linux'
+elif host_os == 'linux'
   system_ss.add(files('tap.c', 'tap-linux.c'))
-elif targetos in bsd_oses
+elif host_os in bsd_oses
   system_ss.add(files('tap.c', 'tap-bsd.c'))
-elif targetos == 'sunos'
+elif host_os == 'sunos'
   system_ss.add(files('tap.c', 'tap-solaris.c'))
 else
   system_ss.add(files('tap.c', 'tap-stub.c'))
diff --git a/plugins/meson.build b/plugins/meson.build
index 6b2d7a92926..51b4350c2a0 100644
--- a/plugins/meson.build
+++ b/plugins/meson.build
@@ -1,7 +1,7 @@
 plugin_ldflags = []
 # Modules need more symbols than just those in plugins/qemu-plugins.symbols
 if not enable_modules
-  if targetos == 'darwin'
+  if host_os == 'darwin'
     configure_file(
       input: files('qemu-plugins.symbols'),
       output: 'qemu-plugins-ld64.symbols',
@@ -14,7 +14,7 @@ if not enable_modules
 endif
 
 if get_option('plugins')
-  if targetos == 'windows'
+  if host_os == 'windows'
     dlltool = find_program('dlltool', required: true)
 
     # Generate a .lib file for plugins to link against.
diff --git a/qga/meson.build b/qga/meson.build
index 66c0f1e56f8..1c3d2a3d1b7 100644
--- a/qga/meson.build
+++ b/qga/meson.build
@@ -7,7 +7,7 @@ if not have_ga
 endif
 
 have_qga_vss = get_option('qga_vss') \
-  .require(targetos == 'windows',
+  .require(host_os == 'windows',
            error_message: 'VSS support requires Windows') \
   .require('cpp' in all_languages,
            error_message: 'VSS support requires a C++ compiler') \
@@ -67,7 +67,7 @@ qga_ss.add(files(
   'main.c',
   'cutils.c',
 ))
-if targetos == 'windows'
+if host_os == 'windows'
   qga_ss.add(files(
     'channel-win32.c',
     'commands-win32.c',
@@ -80,9 +80,9 @@ else
     'commands-posix.c',
     'commands-posix-ssh.c',
   ))
-  if targetos == 'linux'
+  if host_os == 'linux'
     qga_ss.add(files('commands-linux.c'))
-  elif targetos in bsd_oses
+  elif host_os in bsd_oses
     qga_ss.add(files('commands-bsd.c'))
   endif
 endif
@@ -91,7 +91,7 @@ qga_ss = qga_ss.apply({})
 
 gen_tlb = []
 qga_libs = []
-if targetos == 'windows'
+if host_os == 'windows'
   qga_libs += ['-lws2_32', '-lwinmm', '-lpowrprof', '-lwtsapi32', '-lwininet', '-liphlpapi', '-lnetapi32',
                '-lsetupapi', '-lcfgmgr32']
   if have_qga_vss
@@ -101,7 +101,7 @@ if targetos == 'windows'
 endif
 
 qga_objs = []
-if targetos == 'windows'
+if host_os == 'windows'
   windmc = find_program('windmc', required: true)
   windres = find_program('windres', required: true)
 
@@ -123,7 +123,7 @@ qga = executable('qemu-ga', qga_ss.sources() + qga_objs,
                  install: true)
 all_qga += qga
 
-if targetos == 'windows'
+if host_os == 'windows'
   qemu_ga_msi_arch = {
     'x86': ['-D', 'Arch=32'],
     'x86_64': ['-a', 'x64', '-D', 'Arch=64']
@@ -185,7 +185,7 @@ test_env.set('G_TEST_BUILDDIR', meson.current_build_dir())
 # the leak detector in build-oss-fuzz Gitlab CI test. we should re-enable
 # this when an alternative is implemented or when the underlying glib
 # issue is identified/fix
-#if targetos != 'windows'
+#if host_os != 'windows'
 if false
   srcs = [files('commands-posix-ssh.c')]
   i = 0
diff --git a/scsi/meson.build b/scsi/meson.build
index 0ff2b3affe0..cdb91e11b0e 100644
--- a/scsi/meson.build
+++ b/scsi/meson.build
@@ -1,5 +1,5 @@
 block_ss.add(files('utils.c'))
-if targetos == 'linux'
+if host_os == 'linux'
   block_ss.add(files('pr-manager.c', 'pr-manager-helper.c'))
 else
   block_ss.add(files('pr-manager-stub.c'))
diff --git a/system/meson.build b/system/meson.build
index 0632a3daa8a..25e21172505 100644
--- a/system/meson.build
+++ b/system/meson.build
@@ -33,6 +33,6 @@ endif
 
 system_ss.add(when: seccomp, if_true: files('qemu-seccomp.c'))
 system_ss.add(when: fdt, if_true: files('device_tree.c'))
-if targetos == 'linux'
-  system_ss.add('async-teardown.c')
+if host_os == 'linux'
+  system_ss.add(files('async-teardown.c'))
 endif
diff --git a/tests/fp/meson.build b/tests/fp/meson.build
index 9ef322afc42..4ab89aaa960 100644
--- a/tests/fp/meson.build
+++ b/tests/fp/meson.build
@@ -3,7 +3,7 @@ if 'CONFIG_TCG' not in config_all_accel
 endif
 # There are namespace pollution issues on Windows, due to osdep.h
 # bringing in Windows headers that define a FLOAT128 type.
-if targetos == 'windows'
+if host_os == 'windows'
   subdir_done()
 endif
 
diff --git a/tests/meson.build b/tests/meson.build
index 32cc15a3ef7..0a6f96f8f84 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -68,7 +68,7 @@ test_deps = {
   'test-qht-par': qht_bench,
 }
 
-if have_tools and have_vhost_user and targetos == 'linux'
+if have_tools and have_vhost_user and host_os == 'linux'
   executable('vhost-user-bridge',
              sources: files('vhost-user-bridge.c'),
              dependencies: [qemuutil, vhost_user])
diff --git a/tests/plugin/meson.build b/tests/plugin/meson.build
index 28a929dbcc0..e18183aaeda 100644
--- a/tests/plugin/meson.build
+++ b/tests/plugin/meson.build
@@ -1,7 +1,7 @@
 t = []
 if get_option('plugins')
   foreach i : ['bb', 'empty', 'insn', 'mem', 'syscall']
-    if targetos == 'windows'
+    if host_os == 'windows'
       t += shared_module(i, files(i + '.c') + '../../contrib/plugins/win32_linker.c',
                         include_directories: '../../include/qemu',
                         link_depends: [win32_qemu_plugin_api_lib],
diff --git a/tests/qemu-iotests/meson.build b/tests/qemu-iotests/meson.build
index 53847cb98fc..fad340ad595 100644
--- a/tests/qemu-iotests/meson.build
+++ b/tests/qemu-iotests/meson.build
@@ -1,4 +1,4 @@
-if not have_tools or targetos == 'windows'
+if not have_tools or host_os == 'windows'
   subdir_done()
 endif
 
diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
index 565eff4c0a2..f25bffcc20a 100644
--- a/tests/qtest/meson.build
+++ b/tests/qtest/meson.build
@@ -38,8 +38,8 @@ qtests_cxl = \
 #        for the availability of the default NICs in the tests
 qtests_filter = \
   (get_option('default_devices') and slirp.found() ? ['test-netfilter'] : []) + \
-  (get_option('default_devices') and targetos != 'windows' ? ['test-filter-mirror'] : []) + \
-  (get_option('default_devices') and targetos != 'windows' ? ['test-filter-redirector'] : [])
+  (get_option('default_devices') and host_os != 'windows' ? ['test-filter-mirror'] : []) + \
+  (get_option('default_devices') and host_os != 'windows' ? ['test-filter-redirector'] : [])
 
 qtests_i386 = \
   (slirp.found() ? ['pxe-test'] : []) + \
@@ -48,7 +48,7 @@ qtests_i386 = \
   (config_all_devices.has_key('CONFIG_ISA_TESTDEV') ? ['endianness-test'] : []) +           \
   (config_all_devices.has_key('CONFIG_SGA') ? ['boot-serial-test'] : []) +                  \
   (config_all_devices.has_key('CONFIG_ISA_IPMI_KCS') ? ['ipmi-kcs-test'] : []) +            \
-  (targetos == 'linux' and                                                                  \
+  (host_os == 'linux' and                                                                  \
    config_all_devices.has_key('CONFIG_ISA_IPMI_BT') and
    config_all_devices.has_key('CONFIG_IPMI_EXTERN') ? ['ipmi-bt-test'] : []) +              \
   (config_all_devices.has_key('CONFIG_WDT_IB700') ? ['wdt_ib700-test'] : []) +              \
@@ -74,7 +74,7 @@ qtests_i386 = \
   (config_all_devices.has_key('CONFIG_SB16') ? ['fuzz-sb16-test'] : []) +                   \
   (config_all_devices.has_key('CONFIG_SDHCI_PCI') ? ['fuzz-sdcard-test'] : []) +            \
   (config_all_devices.has_key('CONFIG_ESP_PCI') ? ['am53c974-test'] : []) +                 \
-  (targetos != 'windows' and                                                                \
+  (host_os != 'windows' and                                                                \
    config_all_devices.has_key('CONFIG_ACPI_ERST') ? ['erst-test'] : []) +                   \
   (config_all_devices.has_key('CONFIG_PCIE_PORT') and                                       \
    config_all_devices.has_key('CONFIG_VIRTIO_NET') and                                      \
@@ -277,7 +277,7 @@ if config_all_devices.has_key('CONFIG_VIRTIO_SERIAL')
   qos_test_ss.add(files('virtio-serial-test.c'))
 endif
 
-if targetos != 'windows'
+if host_os != 'windows'
   qos_test_ss.add(files('e1000e-test.c'))
 endif
 if have_virtfs
diff --git a/tests/unit/meson.build b/tests/unit/meson.build
index a05d4710904..69f9c050504 100644
--- a/tests/unit/meson.build
+++ b/tests/unit/meson.build
@@ -100,7 +100,7 @@ if have_block
   }
   if gnutls.found() and \
      tasn1.found() and \
-     targetos != 'windows'
+     host_os != 'windows'
     tests += {
       'test-crypto-tlscredsx509': ['crypto-tls-x509-helpers.c', 'pkix_asn1_tab.c',
                                    tasn1, crypto, gnutls],
@@ -115,7 +115,7 @@ if have_block
   if xts == 'private'
     tests += {'test-crypto-xts': [crypto, io]}
   endif
-  if targetos != 'windows'
+  if host_os != 'windows'
     tests += {
       'test-image-locking': [testblock],
       'test-nested-aio-poll': [testblock],
@@ -150,7 +150,7 @@ if have_system
   # are not runnable under TSan due to a known issue.
   # https://github.com/google/sanitizers/issues/1116
   if not get_option('tsan')
-    if targetos != 'windows'
+    if host_os != 'windows'
         tests += {
           'test-char': ['socket-helpers.c', qom, io, chardev]
         }
@@ -162,7 +162,7 @@ if have_system
   endif
 endif
 
-if have_ga and targetos == 'linux'
+if have_ga and host_os == 'linux'
   tests += {'test-qga': ['../qtest/libqmp.c']}
   test_deps += {'test-qga': qga}
 endif
diff --git a/ui/dbus-display1.xml b/ui/dbus-display1.xml
index f0e2fac2127..ce35d64eea1 100644
--- a/ui/dbus-display1.xml
+++ b/ui/dbus-display1.xml
@@ -71,7 +71,7 @@
         :dbus:iface:`org.qemu.Display1.Listener` interface.
     -->
     <method name="RegisterListener">
-      <?if $(env.TARGETOS) == windows?>
+      <?if $(env.HOST_OS) == windows?>
       <arg type="ay" name="listener" direction="in">
         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
       </arg>
@@ -370,7 +370,7 @@
       </arg>
     </method>
 
-    <?if $(env.TARGETOS) != windows?>
+    <?if $(env.HOST_OS) != windows?>
     <!--
         ScanoutDMABUF:
         @dmabuf: the DMABUF file descriptor.
@@ -694,7 +694,7 @@
         :dbus:iface:`org.qemu.Display1.AudioOutListener` interface.
     -->
     <method name="RegisterOutListener">
-      <?if $(env.TARGETOS) == windows?>
+      <?if $(env.HOST_OS) == windows?>
       <arg type="ay" name="listener" direction="in">
         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
       </arg>
@@ -715,7 +715,7 @@
         :dbus:iface:`org.qemu.Display1.AudioInListener` interface.
     -->
     <method name="RegisterInListener">
-      <?if $(env.TARGETOS) == windows?>
+      <?if $(env.HOST_OS) == windows?>
       <arg type="ay" name="listener" direction="in">
         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
       </arg>
@@ -976,7 +976,7 @@
         The current handler, if any, will be replaced.
     -->
     <method name="Register">
-      <?if $(env.TARGETOS) == windows?>
+      <?if $(env.HOST_OS) == windows?>
       <arg type="ay" name="listener" direction="in">
         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
       </arg>
diff --git a/ui/meson.build b/ui/meson.build
index a370494c4ab..376e0d771ba 100644
--- a/ui/meson.build
+++ b/ui/meson.build
@@ -25,7 +25,7 @@ endif
 system_ss.add([spice_headers, files('spice-module.c')])
 system_ss.add(when: spice_protocol, if_true: files('vdagent.c'))
 
-if targetos == 'linux'
+if host_os == 'linux'
   system_ss.add(files('input-linux.c', 'udmabuf.c'))
 endif
 system_ss.add(when: cocoa, if_true: files('cocoa.m'))
@@ -75,7 +75,7 @@ endif
 if dbus_display
   dbus_ss = ss.source_set()
   env = environment()
-  env.set('TARGETOS', targetos)
+  env.set('HOST_OS', host_os)
   xml = custom_target('dbus-display preprocess',
                       input: 'dbus-display1.xml',
                       output: 'dbus-display1.xml',
@@ -105,7 +105,7 @@ if dbus_display
 endif
 
 if gtk.found()
-  if targetos == 'windows'
+  if host_os == 'windows'
     system_ss.add(files('win32-kbd-hook.c'))
   endif
 
@@ -121,7 +121,7 @@ if gtk.found()
 endif
 
 if sdl.found()
-  if targetos == 'windows'
+  if host_os == 'windows'
     system_ss.add(files('win32-kbd-hook.c'))
   endif
 
diff --git a/util/meson.build b/util/meson.build
index 4e970d2b488..af3bf5692d8 100644
--- a/util/meson.build
+++ b/util/meson.build
@@ -3,7 +3,7 @@ util_ss.add(files('thread-context.c'), numa)
 if not config_host_data.get('CONFIG_ATOMIC64')
   util_ss.add(files('atomic64.c'))
 endif
-if targetos != 'windows'
+if host_os != 'windows'
   util_ss.add(files('aio-posix.c'))
   util_ss.add(files('fdmon-poll.c'))
   if config_host_data.get('CONFIG_EPOLL_CREATE1')
@@ -13,7 +13,7 @@ if targetos != 'windows'
   util_ss.add(files('event_notifier-posix.c'))
   util_ss.add(files('mmap-alloc.c'))
   freebsd_dep = []
-  if targetos == 'freebsd'
+  if host_os == 'freebsd'
     freebsd_dep = util
   endif
   util_ss.add(files('oslib-posix.c'), freebsd_dep)
@@ -73,7 +73,7 @@ endif
 if have_system
   util_ss.add(files('crc-ccitt.c'))
   util_ss.add(when: gio, if_true: files('dbus.c'))
-  if targetos == 'linux'
+  if host_os == 'linux'
     util_ss.add(files('userfaultfd.c'))
   endif
 endif
@@ -108,7 +108,7 @@ if have_block
   else
     util_ss.add(files('filemonitor-stub.c'))
   endif
-  if targetos == 'linux'
+  if host_os == 'linux'
     util_ss.add(files('vhost-user-server.c'), vhost_user)
     util_ss.add(files('vfio-helpers.c'))
     util_ss.add(files('chardev_open.c'))
-- 
2.43.0

[PULL 46/46] meson.build: report graphics backends separately

[Paolo Bonzini]

From: Alex Bennée <alex.bennee@linaro.org>

To enable accelerated VirtIO GPUs for the guest we need the rendering
support on the host, which currently it's reported in the configuration
summary under the "dependencies" section. Add a graphics backend section
and report the status of the VirGL and Rutabaga support libraries.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20231222114846.2850741-1-alex.bennee@linaro.org>
[Remove from dependencies as suggested by Philippe. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 meson.build | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/meson.build b/meson.build
index 44bc5bf0c0e..5a2582776ce 100644
--- a/meson.build
+++ b/meson.build
@@ -4302,6 +4302,12 @@ summary_info += {'curses support':    curses}
 summary_info += {'brlapi support':    brlapi}
 summary(summary_info, bool_yn: true, section: 'User interface')
 
+# Graphics backends
+summary_info = {}
+summary_info += {'VirGL support':     virgl}
+summary_info += {'Rutabaga support':  rutabaga}
+summary(summary_info, bool_yn: true, section: 'Graphics backends')
+
 # Audio backends
 summary_info = {}
 if host_os not in ['darwin', 'haiku', 'windows']
@@ -4337,8 +4343,6 @@ summary_info = {}
 summary_info += {'libtasn1':          tasn1}
 summary_info += {'PAM':               pam}
 summary_info += {'iconv support':     iconv}
-summary_info += {'virgl support':     virgl}
-summary_info += {'rutabaga support':  rutabaga}
 summary_info += {'blkio support':     blkio}
 summary_info += {'curl support':      curl}
 summary_info += {'Multipath support': mpathpersist}
-- 
2.43.0

Re: [PULL 00/46] (mostly) target/i386 and meson changes for 2023-12-31

[Peter Maydell]

On Sun, 31 Dec 2023 at 08:50, Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> The following changes since commit 191710c221f65b1542f6ea7fa4d30dde6e134fd7:
>
>   Merge tag 'pull-request-2023-12-20' of https://gitlab.com/thuth/qemu into staging (2023-12-20 09:40:16 -0500)
>
> are available in the Git repository at:
>
>   https://gitlab.com/bonzini/qemu.git tags/for-upstream
>
> for you to fetch changes up to f705c1f25d9a075534f8279048082af4ce2066bf:
>
>   meson.build: report graphics backends separately (2023-12-31 09:11:29 +0100)
>
> ----------------------------------------------------------------
> * configure: use a native non-cross compiler for linux-user
> * meson: cleanups
> * target/i386: miscellaneous cleanups and optimizations
> * target/i386: implement CMPccXADD
> * target/i386: the sgx_epc_get_section stub is reachable
> * esp: check for NULL result from scsi_device_find()
>


Applied, thanks.

Please update the changelog at https://wiki.qemu.org/ChangeLog/9.0
for any user-visible changes.

-- PMM