motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-05 00:33:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

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

Browse source 
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
Download patch file Download diff file Expand all files Collapse all files

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++;
}