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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 13/22] tests/plugin: Remove duplicate insn log from libinsn.so
Date: Mon, 26 Jun 2023 17:39:36 +0200	[thread overview]
Message-ID: <20230626153945.76180-14-richard.henderson@linaro.org> (raw)
In-Reply-To: <20230626153945.76180-1-richard.henderson@linaro.org>

This is a perfectly natural occurrence for x86 "rep movb",
where the "rep" prefix forms a counted loop of the one insn.

During the tests/tcg/multiarch/memory test, this logging is
triggered over 350000 times.  Within the context of cross-i386-tci
build, which is already slow by nature, the logging is sufficient
to push the test into timeout.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 tests/plugin/insn.c                      | 9 +--------
 tests/tcg/i386/Makefile.softmmu-target   | 9 ---------
 tests/tcg/i386/Makefile.target           | 6 ------
 tests/tcg/x86_64/Makefile.softmmu-target | 9 ---------
 4 files changed, 1 insertion(+), 32 deletions(-)

diff --git a/tests/plugin/insn.c b/tests/plugin/insn.c
index cd5ea5d4ae..9bd6e44f73 100644
--- a/tests/plugin/insn.c
+++ b/tests/plugin/insn.c
@@ -19,7 +19,6 @@ QEMU_PLUGIN_EXPORT int qemu_plugin_version = QEMU_PLUGIN_VERSION;
 #define MAX_CPUS 8 /* lets not go nuts */
 
 typedef struct {
-    uint64_t last_pc;
     uint64_t insn_count;
 } InstructionCount;
 
@@ -51,13 +50,7 @@ static void vcpu_insn_exec_before(unsigned int cpu_index, void *udata)
 {
     unsigned int i = cpu_index % MAX_CPUS;
     InstructionCount *c = &counts[i];
-    uint64_t this_pc = GPOINTER_TO_UINT(udata);
-    if (this_pc == c->last_pc) {
-        g_autofree gchar *out = g_strdup_printf("detected repeat execution @ 0x%"
-                                                PRIx64 "\n", this_pc);
-        qemu_plugin_outs(out);
-    }
-    c->last_pc = this_pc;
+
     c->insn_count++;
 }
 
diff --git a/tests/tcg/i386/Makefile.softmmu-target b/tests/tcg/i386/Makefile.softmmu-target
index ed922d59c8..5266f2335a 100644
--- a/tests/tcg/i386/Makefile.softmmu-target
+++ b/tests/tcg/i386/Makefile.softmmu-target
@@ -33,14 +33,5 @@ EXTRA_RUNS+=$(MULTIARCH_RUNS)
 
 memory: CFLAGS+=-DCHECK_UNALIGNED=1
 
-# non-inline runs will trigger the duplicate instruction heuristics in libinsn.so
-run-plugin-%-with-libinsn.so:
-	$(call run-test, $@, \
-	  $(QEMU) -monitor none -display none \
-		  -chardev file$(COMMA)path=$@.out$(COMMA)id=output \
-                  -plugin ../../plugin/libinsn.so$(COMMA)inline=on \
-	    	  -d plugin -D $*-with-libinsn.so.pout \
-		  $(QEMU_OPTS) $*)
-
 # Running
 QEMU_OPTS+=-device isa-debugcon,chardev=output -device isa-debug-exit,iobase=0xf4,iosize=0x4 -kernel
diff --git a/tests/tcg/i386/Makefile.target b/tests/tcg/i386/Makefile.target
index 821822ed0c..f2ee7a4db7 100644
--- a/tests/tcg/i386/Makefile.target
+++ b/tests/tcg/i386/Makefile.target
@@ -63,12 +63,6 @@ else
 SKIP_I386_TESTS+=test-i386-fprem
 endif
 
-# non-inline runs will trigger the duplicate instruction heuristics in libinsn.so
-run-plugin-%-with-libinsn.so:
-	$(call run-test, $@, $(QEMU) $(QEMU_OPTS) \
-	       -plugin ../../plugin/libinsn.so$(COMMA)inline=on \
-	       -d plugin -D $*-with-libinsn.so.pout $*)
-
 # Update TESTS
 I386_TESTS:=$(filter-out $(SKIP_I386_TESTS), $(ALL_X86_TESTS))
 TESTS=$(MULTIARCH_TESTS) $(I386_TESTS)
diff --git a/tests/tcg/x86_64/Makefile.softmmu-target b/tests/tcg/x86_64/Makefile.softmmu-target
index 7207fee94c..1bd763f2e6 100644
--- a/tests/tcg/x86_64/Makefile.softmmu-target
+++ b/tests/tcg/x86_64/Makefile.softmmu-target
@@ -33,14 +33,5 @@ EXTRA_RUNS+=$(MULTIARCH_RUNS)
 
 memory: CFLAGS+=-DCHECK_UNALIGNED=1
 
-# non-inline runs will trigger the duplicate instruction heuristics in libinsn.so
-run-plugin-%-with-libinsn.so:
-	$(call run-test, $@, \
-	  $(QEMU) -monitor none -display none \
-		  -chardev file$(COMMA)path=$@.out$(COMMA)id=output \
-                  -plugin ../../plugin/libinsn.so$(COMMA)inline=on \
-	    	  -d plugin -D $*-with-libinsn.so.pout \
-		  $(QEMU_OPTS) $*)
-
 # Running
 QEMU_OPTS+=-device isa-debugcon,chardev=output -device isa-debug-exit,iobase=0xf4,iosize=0x4 -kernel
-- 
2.34.1



  parent reply	other threads:[~2023-06-26 15:45 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-06-26 15:39 [PULL 00/22] tcg patch queue Richard Henderson
2023-06-26 15:39 ` [PULL 01/22] accel: Replace target_ulong in tlb_*() Richard Henderson
2023-06-26 15:39 ` [PULL 02/22] accel/tcg/translate-all.c: Widen pc and cs_base Richard Henderson
2023-07-11 16:39   ` Peter Maydell
2023-06-26 15:39 ` [PULL 03/22] target: Widen pc/cs_base in cpu_get_tb_cpu_state Richard Henderson
2023-06-26 15:39 ` [PULL 04/22] accel/tcg/cputlb.c: Widen CPUTLBEntry access functions Richard Henderson
2023-06-26 15:39 ` [PULL 05/22] accel/tcg/cputlb.c: Widen addr in MMULookupPageData Richard Henderson
2023-06-26 15:39 ` [PULL 06/22] accel/tcg/cpu-exec.c: Widen pc to vaddr Richard Henderson
2023-07-11 16:40   ` Peter Maydell
2023-06-26 15:39 ` [PULL 07/22] accel/tcg: Widen pc to vaddr in CPUJumpCache Richard Henderson
2023-06-26 15:39 ` [PULL 08/22] accel: Replace target_ulong with vaddr in probe_*() Richard Henderson
2023-06-26 15:39 ` [PULL 09/22] accel/tcg: Replace target_ulong with vaddr in *_mmu_lookup() Richard Henderson
2023-06-26 15:39 ` [PULL 10/22] accel/tcg: Replace target_ulong with vaddr in translator_*() Richard Henderson
2023-06-26 15:39 ` [PULL 11/22] cpu: Replace target_ulong with hwaddr in tb_invalidate_phys_addr() Richard Henderson
2023-06-26 15:39 ` [PULL 12/22] softfloat: use QEMU_FLATTEN to avoid mistaken isra inlining Richard Henderson
2023-06-26 15:39 ` Richard Henderson [this message]
2023-06-26 15:39 ` [PULL 14/22] accel/tcg: remove CONFIG_PROFILER Richard Henderson
2023-06-26 15:39 ` [PULL 15/22] tcg: Fix temporary variable in tcg_gen_gvec_andcs Richard Henderson
2023-06-26 15:39 ` [PULL 16/22] target/microblaze: Define TCG_GUEST_DEFAULT_MO Richard Henderson
2023-06-26 15:39 ` [PULL 17/22] tcg: Do not elide memory barriers for !CF_PARALLEL in system mode Richard Henderson
2023-06-26 15:39 ` [PULL 18/22] tcg: Add host memory barriers to cpu_ldst.h interfaces Richard Henderson
2023-06-26 15:39 ` [PULL 19/22] accel/tcg: Remove check_tcg_memory_orders_compatible Richard Henderson
2023-06-26 15:39 ` [PULL 20/22] accel/tcg: Store some tlb flags in CPUTLBEntryFull Richard Henderson
2023-06-26 15:39 ` [PULL 21/22] accel/tcg: Move TLB_WATCHPOINT to TLB_SLOW_FLAGS_MASK Richard Henderson
2023-06-26 15:39 ` [PULL 22/22] accel/tcg: Renumber TLB_DISCARD_WRITE Richard Henderson
2023-06-26 18:11 ` [PULL 00/22] tcg patch queue Richard Henderson

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