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tests/plugin: Remove duplicate insn log from libinsn.so 

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>
This commit is contained in:
Richard Henderson 2023-06-10 10:19:59 -07:00
parent 1d3daf9525
commit ea185a557b
4 changed files with 1 additions and 32 deletions
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9
tests/plugin/insn.c
View File

@ -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++;
}

9
tests/tcg/i386/Makefile.softmmu-target
View File

@ -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

6
tests/tcg/i386/Makefile.target
View File

@ -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)

9
tests/tcg/x86_64/Makefile.softmmu-target
View File

@ -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