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-rw-r--r--tools/perf/util/annotate.c23
-rw-r--r--tools/perf/util/annotate.h5
-rw-r--r--tools/perf/util/evsel.c61
-rw-r--r--tools/perf/util/evsel.h1
-rw-r--r--tools/perf/util/symbol.c3
-rw-r--r--tools/perf/util/thread_map.c22
-rw-r--r--tools/perf/util/thread_map.h1
7 files changed, 98 insertions, 18 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index ea7e0de4b9c1..06cc04e5806a 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -223,13 +223,19 @@ bool ins__is_call(const struct ins *ins)
static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map *map __maybe_unused)
{
const char *s = strchr(ops->raw, '+');
+ const char *c = strchr(ops->raw, ',');
- ops->target.addr = strtoull(ops->raw, NULL, 16);
+ if (c++ != NULL)
+ ops->target.addr = strtoull(c, NULL, 16);
+ else
+ ops->target.addr = strtoull(ops->raw, NULL, 16);
- if (s++ != NULL)
+ if (s++ != NULL) {
ops->target.offset = strtoull(s, NULL, 16);
- else
- ops->target.offset = UINT64_MAX;
+ ops->target.offset_avail = true;
+ } else {
+ ops->target.offset_avail = false;
+ }
return 0;
}
@@ -237,7 +243,7 @@ static int jump__parse(struct arch *arch __maybe_unused, struct ins_operands *op
static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
struct ins_operands *ops)
{
- if (!ops->target.addr)
+ if (!ops->target.addr || ops->target.offset < 0)
return ins__raw_scnprintf(ins, bf, size, ops);
return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
@@ -641,7 +647,8 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
- if (addr < sym->start || addr >= sym->end) {
+ if ((addr < sym->start || addr >= sym->end) &&
+ (addr != sym->end || sym->start != sym->end)) {
pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
__func__, __LINE__, sym->name, sym->start, addr, sym->end);
return -ERANGE;
@@ -1205,9 +1212,11 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
if (dl == NULL)
return -1;
- if (dl->ops.target.offset == UINT64_MAX)
+ if (!disasm_line__has_offset(dl)) {
dl->ops.target.offset = dl->ops.target.addr -
map__rip_2objdump(map, sym->start);
+ dl->ops.target.offset_avail = true;
+ }
/* kcore has no symbols, so add the call target name */
if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.name) {
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 87e4cadc5d27..09776b5af991 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -24,7 +24,8 @@ struct ins_operands {
char *raw;
char *name;
u64 addr;
- u64 offset;
+ s64 offset;
+ bool offset_avail;
} target;
union {
struct {
@@ -68,7 +69,7 @@ struct disasm_line {
static inline bool disasm_line__has_offset(const struct disasm_line *dl)
{
- return dl->ops.target.offset != UINT64_MAX;
+ return dl->ops.target.offset_avail;
}
void disasm_line__free(struct disasm_line *dl);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index b2365a63db45..04e536ae4d88 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -990,6 +990,8 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
* it overloads any global configuration.
*/
apply_config_terms(evsel, opts);
+
+ evsel->ignore_missing_thread = opts->ignore_missing_thread;
}
static int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
@@ -1419,6 +1421,33 @@ static int __open_attr__fprintf(FILE *fp, const char *name, const char *val,
return fprintf(fp, " %-32s %s\n", name, val);
}
+static bool ignore_missing_thread(struct perf_evsel *evsel,
+ struct thread_map *threads,
+ int thread, int err)
+{
+ if (!evsel->ignore_missing_thread)
+ return false;
+
+ /* The system wide setup does not work with threads. */
+ if (evsel->system_wide)
+ return false;
+
+ /* The -ESRCH is perf event syscall errno for pid's not found. */
+ if (err != -ESRCH)
+ return false;
+
+ /* If there's only one thread, let it fail. */
+ if (threads->nr == 1)
+ return false;
+
+ if (thread_map__remove(threads, thread))
+ return false;
+
+ pr_warning("WARNING: Ignored open failure for pid %d\n",
+ thread_map__pid(threads, thread));
+ return true;
+}
+
static int __perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
struct thread_map *threads)
{
@@ -1474,7 +1503,7 @@ retry_sample_id:
for (cpu = 0; cpu < cpus->nr; cpu++) {
for (thread = 0; thread < nthreads; thread++) {
- int group_fd;
+ int fd, group_fd;
if (!evsel->cgrp && !evsel->system_wide)
pid = thread_map__pid(threads, thread);
@@ -1484,21 +1513,37 @@ retry_open:
pr_debug2("sys_perf_event_open: pid %d cpu %d group_fd %d flags %#lx",
pid, cpus->map[cpu], group_fd, flags);
- FD(evsel, cpu, thread) = sys_perf_event_open(&evsel->attr,
- pid,
- cpus->map[cpu],
- group_fd, flags);
- if (FD(evsel, cpu, thread) < 0) {
+ fd = sys_perf_event_open(&evsel->attr, pid, cpus->map[cpu],
+ group_fd, flags);
+
+ FD(evsel, cpu, thread) = fd;
+
+ if (fd < 0) {
err = -errno;
+
+ if (ignore_missing_thread(evsel, threads, thread, err)) {
+ /*
+ * We just removed 1 thread, so take a step
+ * back on thread index and lower the upper
+ * nthreads limit.
+ */
+ nthreads--;
+ thread--;
+
+ /* ... and pretend like nothing have happened. */
+ err = 0;
+ continue;
+ }
+
pr_debug2("\nsys_perf_event_open failed, error %d\n",
err);
goto try_fallback;
}
- pr_debug2(" = %d\n", FD(evsel, cpu, thread));
+ pr_debug2(" = %d\n", fd);
if (evsel->bpf_fd >= 0) {
- int evt_fd = FD(evsel, cpu, thread);
+ int evt_fd = fd;
int bpf_fd = evsel->bpf_fd;
err = ioctl(evt_fd,
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 6abb89cd27f9..06ef6f29efa1 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -120,6 +120,7 @@ struct perf_evsel {
bool tracking;
bool per_pkg;
bool precise_max;
+ bool ignore_missing_thread;
/* parse modifier helper */
int exclude_GH;
int nr_members;
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index df2482b2ba45..dc93940de351 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1459,7 +1459,8 @@ int dso__load(struct dso *dso, struct map *map)
* Read the build id if possible. This is required for
* DSO_BINARY_TYPE__BUILDID_DEBUGINFO to work
*/
- if (is_regular_file(dso->long_name) &&
+ if (!dso->has_build_id &&
+ is_regular_file(dso->long_name) &&
filename__read_build_id(dso->long_name, build_id, BUILD_ID_SIZE) > 0)
dso__set_build_id(dso, build_id);
diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index 40585f5b7027..f9eab200fd75 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -448,3 +448,25 @@ bool thread_map__has(struct thread_map *threads, pid_t pid)
return false;
}
+
+int thread_map__remove(struct thread_map *threads, int idx)
+{
+ int i;
+
+ if (threads->nr < 1)
+ return -EINVAL;
+
+ if (idx >= threads->nr)
+ return -EINVAL;
+
+ /*
+ * Free the 'idx' item and shift the rest up.
+ */
+ free(threads->map[idx].comm);
+
+ for (i = idx; i < threads->nr - 1; i++)
+ threads->map[i] = threads->map[i + 1];
+
+ threads->nr--;
+ return 0;
+}
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index bd3b971588da..ea0ef08c6303 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -58,4 +58,5 @@ static inline char *thread_map__comm(struct thread_map *map, int thread)
void thread_map__read_comms(struct thread_map *threads);
bool thread_map__has(struct thread_map *threads, pid_t pid);
+int thread_map__remove(struct thread_map *threads, int idx);
#endif /* __PERF_THREAD_MAP_H */
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-28 20:41:20 +0100