summaryrefslogtreecommitdiffstats
path: root/tools/lib
diff options
context:
space:
mode:
Diffstat (limited to 'tools/lib')
-rw-r--r--tools/lib/perf/Makefile2
-rw-r--r--tools/lib/perf/cpumap.c85
-rw-r--r--tools/lib/perf/include/internal/cpumap.h5
3 files changed, 50 insertions, 42 deletions
diff --git a/tools/lib/perf/Makefile b/tools/lib/perf/Makefile
index d8cad124e4c5..3a9b2140aa04 100644
--- a/tools/lib/perf/Makefile
+++ b/tools/lib/perf/Makefile
@@ -188,7 +188,7 @@ install_lib: libs
cp -fpR $(LIBPERF_ALL) $(DESTDIR)$(libdir_SQ)
HDRS := bpf_perf.h core.h cpumap.h threadmap.h evlist.h evsel.h event.h mmap.h
-INTERNAL_HDRS := cpumap.h evlist.h evsel.h lib.h mmap.h threadmap.h xyarray.h
+INTERNAL_HDRS := cpumap.h evlist.h evsel.h lib.h mmap.h rc_check.h threadmap.h xyarray.h
INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/perf
INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS))
diff --git a/tools/lib/perf/cpumap.c b/tools/lib/perf/cpumap.c
index 27c3e73c6db2..1229b18bcdb1 100644
--- a/tools/lib/perf/cpumap.c
+++ b/tools/lib/perf/cpumap.c
@@ -12,19 +12,19 @@
void perf_cpu_map__set_nr(struct perf_cpu_map *map, int nr_cpus)
{
- map->nr = nr_cpus;
+ RC_CHK_ACCESS(map)->nr = nr_cpus;
}
struct perf_cpu_map *perf_cpu_map__alloc(int nr_cpus)
{
- struct perf_cpu_map *cpus = malloc(sizeof(*cpus) + sizeof(struct perf_cpu) * nr_cpus);
+ RC_STRUCT(perf_cpu_map) *cpus = malloc(sizeof(*cpus) + sizeof(struct perf_cpu) * nr_cpus);
+ struct perf_cpu_map *result;
- if (cpus != NULL) {
+ if (ADD_RC_CHK(result, cpus)) {
cpus->nr = nr_cpus;
refcount_set(&cpus->refcnt, 1);
-
}
- return cpus;
+ return result;
}
struct perf_cpu_map *perf_cpu_map__dummy_new(void)
@@ -32,7 +32,7 @@ struct perf_cpu_map *perf_cpu_map__dummy_new(void)
struct perf_cpu_map *cpus = perf_cpu_map__alloc(1);
if (cpus)
- cpus->map[0].cpu = -1;
+ RC_CHK_ACCESS(cpus)->map[0].cpu = -1;
return cpus;
}
@@ -42,21 +42,28 @@ static void cpu_map__delete(struct perf_cpu_map *map)
if (map) {
WARN_ONCE(refcount_read(perf_cpu_map__refcnt(map)) != 0,
"cpu_map refcnt unbalanced\n");
- free(map);
+ RC_CHK_FREE(map);
}
}
struct perf_cpu_map *perf_cpu_map__get(struct perf_cpu_map *map)
{
- if (map)
+ struct perf_cpu_map *result;
+
+ if (RC_CHK_GET(result, map))
refcount_inc(perf_cpu_map__refcnt(map));
- return map;
+
+ return result;
}
void perf_cpu_map__put(struct perf_cpu_map *map)
{
- if (map && refcount_dec_and_test(perf_cpu_map__refcnt(map)))
- cpu_map__delete(map);
+ if (map) {
+ if (refcount_dec_and_test(perf_cpu_map__refcnt(map)))
+ cpu_map__delete(map);
+ else
+ RC_CHK_PUT(map);
+ }
}
static struct perf_cpu_map *cpu_map__default_new(void)
@@ -73,7 +80,7 @@ static struct perf_cpu_map *cpu_map__default_new(void)
int i;
for (i = 0; i < nr_cpus; ++i)
- cpus->map[i].cpu = i;
+ RC_CHK_ACCESS(cpus)->map[i].cpu = i;
}
return cpus;
@@ -99,15 +106,15 @@ static struct perf_cpu_map *cpu_map__trim_new(int nr_cpus, const struct perf_cpu
int i, j;
if (cpus != NULL) {
- memcpy(cpus->map, tmp_cpus, payload_size);
- qsort(cpus->map, nr_cpus, sizeof(struct perf_cpu), cmp_cpu);
+ memcpy(RC_CHK_ACCESS(cpus)->map, tmp_cpus, payload_size);
+ qsort(RC_CHK_ACCESS(cpus)->map, nr_cpus, sizeof(struct perf_cpu), cmp_cpu);
/* Remove dups */
j = 0;
for (i = 0; i < nr_cpus; i++) {
- if (i == 0 || cpus->map[i].cpu != cpus->map[i - 1].cpu)
- cpus->map[j++].cpu = cpus->map[i].cpu;
+ if (i == 0 || RC_CHK_ACCESS(cpus)->map[i].cpu != RC_CHK_ACCESS(cpus)->map[i - 1].cpu)
+ RC_CHK_ACCESS(cpus)->map[j++].cpu = RC_CHK_ACCESS(cpus)->map[i].cpu;
}
- cpus->nr = j;
+ perf_cpu_map__set_nr(cpus, j);
assert(j <= nr_cpus);
}
return cpus;
@@ -268,20 +275,20 @@ struct perf_cpu perf_cpu_map__cpu(const struct perf_cpu_map *cpus, int idx)
.cpu = -1
};
- if (cpus && idx < cpus->nr)
- return cpus->map[idx];
+ if (cpus && idx < RC_CHK_ACCESS(cpus)->nr)
+ return RC_CHK_ACCESS(cpus)->map[idx];
return result;
}
int perf_cpu_map__nr(const struct perf_cpu_map *cpus)
{
- return cpus ? cpus->nr : 1;
+ return cpus ? RC_CHK_ACCESS(cpus)->nr : 1;
}
bool perf_cpu_map__empty(const struct perf_cpu_map *map)
{
- return map ? map->map[0].cpu == -1 : true;
+ return map ? RC_CHK_ACCESS(map)->map[0].cpu == -1 : true;
}
int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu)
@@ -292,10 +299,10 @@ int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu)
return -1;
low = 0;
- high = cpus->nr;
+ high = RC_CHK_ACCESS(cpus)->nr;
while (low < high) {
int idx = (low + high) / 2;
- struct perf_cpu cpu_at_idx = cpus->map[idx];
+ struct perf_cpu cpu_at_idx = RC_CHK_ACCESS(cpus)->map[idx];
if (cpu_at_idx.cpu == cpu.cpu)
return idx;
@@ -321,7 +328,7 @@ struct perf_cpu perf_cpu_map__max(const struct perf_cpu_map *map)
};
// cpu_map__trim_new() qsort()s it, cpu_map__default_new() sorts it as well.
- return map->nr > 0 ? map->map[map->nr - 1] : result;
+ return RC_CHK_ACCESS(map)->nr > 0 ? RC_CHK_ACCESS(map)->map[RC_CHK_ACCESS(map)->nr - 1] : result;
}
/** Is 'b' a subset of 'a'. */
@@ -329,15 +336,15 @@ bool perf_cpu_map__is_subset(const struct perf_cpu_map *a, const struct perf_cpu
{
if (a == b || !b)
return true;
- if (!a || b->nr > a->nr)
+ if (!a || RC_CHK_ACCESS(b)->nr > RC_CHK_ACCESS(a)->nr)
return false;
- for (int i = 0, j = 0; i < a->nr; i++) {
- if (a->map[i].cpu > b->map[j].cpu)
+ for (int i = 0, j = 0; i < RC_CHK_ACCESS(a)->nr; i++) {
+ if (RC_CHK_ACCESS(a)->map[i].cpu > RC_CHK_ACCESS(b)->map[j].cpu)
return false;
- if (a->map[i].cpu == b->map[j].cpu) {
+ if (RC_CHK_ACCESS(a)->map[i].cpu == RC_CHK_ACCESS(b)->map[j].cpu) {
j++;
- if (j == b->nr)
+ if (j == RC_CHK_ACCESS(b)->nr)
return true;
}
}
@@ -367,27 +374,27 @@ struct perf_cpu_map *perf_cpu_map__merge(struct perf_cpu_map *orig,
return perf_cpu_map__get(other);
}
- tmp_len = orig->nr + other->nr;
+ tmp_len = RC_CHK_ACCESS(orig)->nr + RC_CHK_ACCESS(other)->nr;
tmp_cpus = malloc(tmp_len * sizeof(struct perf_cpu));
if (!tmp_cpus)
return NULL;
/* Standard merge algorithm from wikipedia */
i = j = k = 0;
- while (i < orig->nr && j < other->nr) {
- if (orig->map[i].cpu <= other->map[j].cpu) {
- if (orig->map[i].cpu == other->map[j].cpu)
+ while (i < RC_CHK_ACCESS(orig)->nr && j < RC_CHK_ACCESS(other)->nr) {
+ if (RC_CHK_ACCESS(orig)->map[i].cpu <= RC_CHK_ACCESS(other)->map[j].cpu) {
+ if (RC_CHK_ACCESS(orig)->map[i].cpu == RC_CHK_ACCESS(other)->map[j].cpu)
j++;
- tmp_cpus[k++] = orig->map[i++];
+ tmp_cpus[k++] = RC_CHK_ACCESS(orig)->map[i++];
} else
- tmp_cpus[k++] = other->map[j++];
+ tmp_cpus[k++] = RC_CHK_ACCESS(other)->map[j++];
}
- while (i < orig->nr)
- tmp_cpus[k++] = orig->map[i++];
+ while (i < RC_CHK_ACCESS(orig)->nr)
+ tmp_cpus[k++] = RC_CHK_ACCESS(orig)->map[i++];
- while (j < other->nr)
- tmp_cpus[k++] = other->map[j++];
+ while (j < RC_CHK_ACCESS(other)->nr)
+ tmp_cpus[k++] = RC_CHK_ACCESS(other)->map[j++];
assert(k <= tmp_len);
merged = cpu_map__trim_new(k, tmp_cpus);
diff --git a/tools/lib/perf/include/internal/cpumap.h b/tools/lib/perf/include/internal/cpumap.h
index 1e840dd53a11..49649eb51ce4 100644
--- a/tools/lib/perf/include/internal/cpumap.h
+++ b/tools/lib/perf/include/internal/cpumap.h
@@ -4,6 +4,7 @@
#include <linux/refcount.h>
#include <perf/cpumap.h>
+#include <internal/rc_check.h>
/**
* A sized, reference counted, sorted array of integers representing CPU
@@ -12,7 +13,7 @@
* gaps if CPU numbers were used. For events associated with a pid, rather than
* a CPU, a single dummy map with an entry of -1 is used.
*/
-struct perf_cpu_map {
+DECLARE_RC_STRUCT(perf_cpu_map) {
refcount_t refcnt;
/** Length of the map array. */
int nr;
@@ -32,6 +33,6 @@ void perf_cpu_map__set_nr(struct perf_cpu_map *map, int nr_cpus);
static inline refcount_t *perf_cpu_map__refcnt(struct perf_cpu_map *map)
{
- return &map->refcnt;
+ return &RC_CHK_ACCESS(map)->refcnt;
}
#endif /* __LIBPERF_INTERNAL_CPUMAP_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 14:53:06 +0000