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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org
Subject: [PULL 01/34] common-user/host/sparc64: Fix safe_syscall_base
Date: Fri, 11 Feb 2022 12:30:26 +1100	[thread overview]
Message-ID: <20220211013059.17994-2-richard.henderson@linaro.org> (raw)
In-Reply-To: <20220211013059.17994-1-richard.henderson@linaro.org>

Use the "retl" instead of "ret" instruction alias, since we
do not allocate a register window in this function.

Fix the offset to the first stacked parameter, which lies
beyond the register window save area.

Fixes: 95c021dac835 ("linux-user/host/sparc64: Add safe-syscall.inc.S")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 common-user/host/sparc64/safe-syscall.inc.S | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/common-user/host/sparc64/safe-syscall.inc.S b/common-user/host/sparc64/safe-syscall.inc.S
index a2f2b9c967..c7be8f2d25 100644
--- a/common-user/host/sparc64/safe-syscall.inc.S
+++ b/common-user/host/sparc64/safe-syscall.inc.S
@@ -24,7 +24,8 @@
         .type   safe_syscall_end, @function
 
 #define STACK_BIAS  2047
-#define PARAM(N)    STACK_BIAS + N*8
+#define WINDOW_SIZE 16 * 8
+#define PARAM(N)    STACK_BIAS + WINDOW_SIZE + N * 8
 
         /*
          * This is the entry point for making a system call. The calling
@@ -74,7 +75,7 @@ safe_syscall_end:
         /* code path for having successfully executed the syscall */
         bcs,pn  %xcc, 1f
          nop
-        ret
+        retl
          nop
 
         /* code path when we didn't execute the syscall */
-- 
2.25.1



  reply	other threads:[~2022-02-11  1:35 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-11  1:30 [PULL 00/34] tcg patch queue Richard Henderson
2022-02-11  1:30 ` Richard Henderson [this message]
2022-02-11  1:30 ` [PULL 02/34] linux-user: Introduce host_signal_mask Richard Henderson
2022-02-11  1:30 ` [PULL 03/34] linux-user: Introduce host_sigcontext Richard Henderson
2022-02-11  1:30 ` [PULL 04/34] linux-user: Move sparc/host-signal.h to sparc64/host-signal.h Richard Henderson
2022-02-11  1:30 ` [PULL 05/34] linux-user/include/host/sparc64: Fix host_sigcontext Richard Henderson
2022-02-11  1:30 ` [PULL 06/34] accel/tcg: Optimize jump cache flush during tlb range flush Richard Henderson
2022-02-11  1:30 ` [PULL 07/34] softmmu/cpus: Check if the cpu work list is empty atomically Richard Henderson
2022-02-11  1:30 ` [PULL 08/34] replay: use CF_NOIRQ for special exception-replaying TB Richard Henderson
2022-02-11  1:30 ` [PULL 09/34] tcg/loongarch64: Fix fallout from recent MO_Q renaming Richard Henderson
2022-02-11  1:30 ` [PULL 10/34] tcg/i386: Support raising sigbus for user-only Richard Henderson
2022-02-11  1:30 ` [PULL 11/34] tcg/aarch64: " Richard Henderson
2022-02-11  1:30 ` [PULL 12/34] tcg/ppc: " Richard Henderson
2022-02-11  1:30 ` [PULL 13/34] tcg/riscv: " Richard Henderson
2022-02-11  1:30 ` [PULL 14/34] tcg/s390x: " Richard Henderson
2022-02-11  1:30 ` [PULL 15/34] tcg/tci: " Richard Henderson
2022-02-11  1:30 ` [PULL 16/34] tcg/loongarch64: " Richard Henderson
2022-02-11  1:30 ` [PULL 17/34] tcg/arm: Drop support for armv4 and armv5 hosts Richard Henderson
2022-02-11  1:30 ` [PULL 18/34] tcg/arm: Remove use_armv5t_instructions Richard Henderson
2022-02-11  1:30 ` [PULL 19/34] tcg/arm: Remove use_armv6_instructions Richard Henderson
2022-02-11  1:30 ` [PULL 20/34] tcg/arm: Check alignment for ldrd and strd Richard Henderson
2022-02-11  1:30 ` [PULL 21/34] tcg/arm: Support unaligned access for softmmu Richard Henderson
2022-02-11  1:30 ` [PULL 22/34] tcg/arm: Reserve a register for guest_base Richard Henderson
2022-02-11  1:30 ` [PULL 23/34] tcg/arm: Support raising sigbus for user-only Richard Henderson
2022-02-11  1:30 ` [PULL 24/34] tcg/mips: Support unaligned access " Richard Henderson
2022-02-11  1:30 ` [PULL 25/34] tcg/mips: Support unaligned access for softmmu Richard Henderson
2022-02-11  1:30 ` [PULL 26/34] tcg/sparc: Use tcg_out_movi_imm13 in tcg_out_addsub2_i64 Richard Henderson
2022-02-11  1:30 ` [PULL 27/34] tcg/sparc: Split out tcg_out_movi_imm32 Richard Henderson
2022-02-11  1:30 ` [PULL 28/34] tcg/sparc: Add scratch argument to tcg_out_movi_int Richard Henderson
2022-02-11  1:30 ` [PULL 29/34] tcg/sparc: Improve code gen for shifted 32-bit constants Richard Henderson
2022-02-11  1:30 ` [PULL 30/34] tcg/sparc: Convert patch_reloc to return bool Richard Henderson
2022-02-11  1:30 ` [PULL 31/34] tcg/sparc: Use the constant pool for 64-bit constants Richard Henderson
2022-02-11  1:30 ` [PULL 32/34] tcg/sparc: Add tcg_out_jmpl_const for better tail calls Richard Henderson
2022-02-11  1:30 ` [PULL 33/34] tcg/sparc: Support unaligned access for user-only Richard Henderson
2022-02-11  1:30 ` [PULL 34/34] tests/tcg/multiarch: Add sigbus.c Richard Henderson
2022-02-14 19:53 ` [PULL 00/34] tcg patch queue Peter Maydell

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