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-rw-r--r--tools/perf/arch/x86/annotate/instructions.c46
-rw-r--r--tools/perf/builtin-top.c2
-rw-r--r--tools/perf/ui/browsers/annotate.c4
-rw-r--r--tools/perf/ui/gtk/annotate.c2
-rw-r--r--tools/perf/util/annotate.c22
-rw-r--r--tools/perf/util/annotate.h3
-rw-r--r--tools/perf/util/evsel.c7
-rw-r--r--tools/perf/util/evsel.h1
8 files changed, 81 insertions, 6 deletions
diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c
index c1625f256df3..d84b72063a30 100644
--- a/tools/perf/arch/x86/annotate/instructions.c
+++ b/tools/perf/arch/x86/annotate/instructions.c
@@ -76,3 +76,49 @@ static struct ins x86__instructions[] = {
{ .name = "xbeginq", .ops = &jump_ops, },
{ .name = "retq", .ops = &ret_ops, },
};
+
+static bool x86__ins_is_fused(struct arch *arch, const char *ins1,
+ const char *ins2)
+{
+ if (arch->family != 6 || arch->model < 0x1e || strstr(ins2, "jmp"))
+ return false;
+
+ if (arch->model == 0x1e) {
+ /* Nehalem */
+ if ((strstr(ins1, "cmp") && !strstr(ins1, "xchg")) ||
+ strstr(ins1, "test")) {
+ return true;
+ }
+ } else {
+ /* Newer platform */
+ if ((strstr(ins1, "cmp") && !strstr(ins1, "xchg")) ||
+ strstr(ins1, "test") ||
+ strstr(ins1, "add") ||
+ strstr(ins1, "sub") ||
+ strstr(ins1, "and") ||
+ strstr(ins1, "inc") ||
+ strstr(ins1, "dec")) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static int x86__cpuid_parse(struct arch *arch, char *cpuid)
+{
+ unsigned int family, model, stepping;
+ int ret;
+
+ /*
+ * cpuid = "GenuineIntel,family,model,stepping"
+ */
+ ret = sscanf(cpuid, "%*[^,],%u,%u,%u", &family, &model, &stepping);
+ if (ret == 3) {
+ arch->family = family;
+ arch->model = model;
+ return 0;
+ }
+
+ return -1;
+}
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 6052376634c0..022486dc67f5 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -134,7 +134,7 @@ static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
return err;
}
- err = symbol__disassemble(sym, map, NULL, 0, NULL);
+ err = symbol__disassemble(sym, map, NULL, 0, NULL, NULL);
if (err == 0) {
out_assign:
top->sym_filter_entry = he;
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 27f41f28dcb4..c4336138b673 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -9,6 +9,7 @@
#include "../../util/symbol.h"
#include "../../util/evsel.h"
#include "../../util/config.h"
+#include "../../util/evlist.h"
#include <inttypes.h>
#include <pthread.h>
#include <linux/kernel.h>
@@ -1074,7 +1075,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
}
err = symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
- sizeof_bdl, &browser.arch);
+ sizeof_bdl, &browser.arch,
+ perf_evsel__env_cpuid(evsel));
if (err) {
char msg[BUFSIZ];
symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg));
diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
index d903fd493416..87e3760624f2 100644
--- a/tools/perf/ui/gtk/annotate.c
+++ b/tools/perf/ui/gtk/annotate.c
@@ -169,7 +169,7 @@ static int symbol__gtk_annotate(struct symbol *sym, struct map *map,
return -1;
err = symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
- 0, NULL);
+ 0, NULL, NULL);
if (err) {
char msg[BUFSIZ];
symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg));
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index be1caabb9290..8748ebb3f932 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -47,7 +47,12 @@ struct arch {
bool sorted_instructions;
bool initialized;
void *priv;
+ unsigned int model;
+ unsigned int family;
int (*init)(struct arch *arch);
+ bool (*ins_is_fused)(struct arch *arch, const char *ins1,
+ const char *ins2);
+ int (*cpuid_parse)(struct arch *arch, char *cpuid);
struct {
char comment_char;
char skip_functions_char;
@@ -129,6 +134,8 @@ static struct arch architectures[] = {
.name = "x86",
.instructions = x86__instructions,
.nr_instructions = ARRAY_SIZE(x86__instructions),
+ .ins_is_fused = x86__ins_is_fused,
+ .cpuid_parse = x86__cpuid_parse,
.objdump = {
.comment_char = '#',
},
@@ -171,6 +178,14 @@ int ins__scnprintf(struct ins *ins, char *bf, size_t size,
return ins__raw_scnprintf(ins, bf, size, ops);
}
+bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
+{
+ if (!arch || !arch->ins_is_fused)
+ return false;
+
+ return arch->ins_is_fused(arch, ins1, ins2);
+}
+
static int call__parse(struct arch *arch, struct ins_operands *ops, struct map *map)
{
char *endptr, *tok, *name;
@@ -1381,7 +1396,7 @@ static const char *annotate__norm_arch(const char *arch_name)
int symbol__disassemble(struct symbol *sym, struct map *map,
const char *arch_name, size_t privsize,
- struct arch **parch)
+ struct arch **parch, char *cpuid)
{
struct dso *dso = map->dso;
char command[PATH_MAX * 2];
@@ -1418,6 +1433,9 @@ int symbol__disassemble(struct symbol *sym, struct map *map,
}
}
+ if (arch->cpuid_parse && cpuid)
+ arch->cpuid_parse(arch, cpuid);
+
pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
symfs_filename, sym->name, map->unmap_ip(map, sym->start),
map->unmap_ip(map, sym->end));
@@ -1907,7 +1925,7 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
u64 len;
if (symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
- 0, NULL) < 0)
+ 0, NULL, NULL) < 0)
return -1;
len = symbol__size(sym);
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 21055034aedd..72d72728a0fc 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -53,6 +53,7 @@ bool ins__is_jump(const struct ins *ins);
bool ins__is_call(const struct ins *ins);
bool ins__is_ret(const struct ins *ins);
int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops);
+bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
struct annotation;
@@ -160,7 +161,7 @@ void symbol__annotate_zero_histograms(struct symbol *sym);
int symbol__disassemble(struct symbol *sym, struct map *map,
const char *arch_name, size_t privsize,
- struct arch **parch);
+ struct arch **parch, char *cpuid);
enum symbol_disassemble_errno {
SYMBOL_ANNOTATE_ERRNO__SUCCESS = 0,
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 413f74df08de..0e4cd6092564 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -2610,3 +2610,10 @@ char *perf_evsel__env_arch(struct perf_evsel *evsel)
return evsel->evlist->env->arch;
return NULL;
}
+
+char *perf_evsel__env_cpuid(struct perf_evsel *evsel)
+{
+ if (evsel && evsel->evlist && evsel->evlist->env)
+ return evsel->evlist->env->cpuid;
+ return NULL;
+}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index d101695c482c..219ad0cdb9f4 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -436,5 +436,6 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
attr__fprintf_f attr__fprintf, void *priv);
char *perf_evsel__env_arch(struct perf_evsel *evsel);
+char *perf_evsel__env_cpuid(struct perf_evsel *evsel);
#endif /* __PERF_EVSEL_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.