diff options
Diffstat (limited to 'tools/perf/util')
-rw-r--r-- | tools/perf/util/bpf-event.c | 6 | ||||
-rw-r--r-- | tools/perf/util/data.c | 7 | ||||
-rw-r--r-- | tools/perf/util/debug.c | 2 | ||||
-rw-r--r-- | tools/perf/util/env.c | 5 | ||||
-rw-r--r-- | tools/perf/util/env.h | 2 | ||||
-rw-r--r-- | tools/perf/util/hist.h | 1 | ||||
-rw-r--r-- | tools/perf/util/probe-event.c | 3 | ||||
-rw-r--r-- | tools/perf/util/session.c | 15 | ||||
-rw-r--r-- | tools/perf/util/symbol.c | 2 | ||||
-rw-r--r-- | tools/perf/util/util.c | 14 | ||||
-rw-r--r-- | tools/perf/util/util.h | 2 |
11 files changed, 38 insertions, 21 deletions
diff --git a/tools/perf/util/bpf-event.c b/tools/perf/util/bpf-event.c index c766813d56be..782c0c8a9a83 100644 --- a/tools/perf/util/bpf-event.c +++ b/tools/perf/util/bpf-event.c @@ -108,7 +108,11 @@ static int perf_env__fetch_btf(struct perf_env *env, node->data_size = data_size; memcpy(node->data, data, data_size); - perf_env__insert_btf(env, node); + if (!perf_env__insert_btf(env, node)) { + /* Insertion failed because of a duplicate. */ + free(node); + return -1; + } return 0; } diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c index a3f912615690..3c874f52f1a2 100644 --- a/tools/perf/util/data.c +++ b/tools/perf/util/data.c @@ -44,10 +44,6 @@ int perf_data__create_dir(struct perf_data *data, int nr) if (!files) return -ENOMEM; - data->dir.version = PERF_DIR_VERSION; - data->dir.files = files; - data->dir.nr = nr; - for (i = 0; i < nr; i++) { struct perf_data_file *file = &files[i]; @@ -62,6 +58,9 @@ int perf_data__create_dir(struct perf_data *data, int nr) file->fd = ret; } + data->dir.version = PERF_DIR_VERSION; + data->dir.files = files; + data->dir.nr = nr; return 0; out_err: diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c index e55114f0336f..682146d04379 100644 --- a/tools/perf/util/debug.c +++ b/tools/perf/util/debug.c @@ -143,7 +143,7 @@ static int trace_event_printer(enum binary_printer_ops op, break; case BINARY_PRINT_CHAR_DATA: printed += color_fprintf(fp, color, "%c", - isprint(ch) ? ch : '.'); + isprint(ch) && isascii(ch) ? ch : '.'); break; case BINARY_PRINT_CHAR_PAD: printed += color_fprintf(fp, color, " "); diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index 0fafcf264d23..ef64e197bc8d 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -69,12 +69,13 @@ out: return node; } -void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node) +bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node) { struct rb_node *parent = NULL; __u32 btf_id = btf_node->id; struct btf_node *node; struct rb_node **p; + bool ret = true; down_write(&env->bpf_progs.lock); p = &env->bpf_progs.btfs.rb_node; @@ -88,6 +89,7 @@ void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node) p = &(*p)->rb_right; } else { pr_debug("duplicated btf %u\n", btf_id); + ret = false; goto out; } } @@ -97,6 +99,7 @@ void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node) env->bpf_progs.btfs_cnt++; out: up_write(&env->bpf_progs.lock); + return ret; } struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id) diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h index db40906e2937..37028215d4a5 100644 --- a/tools/perf/util/env.h +++ b/tools/perf/util/env.h @@ -117,6 +117,6 @@ void perf_env__insert_bpf_prog_info(struct perf_env *env, struct bpf_prog_info_node *info_node); struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env, __u32 prog_id); -void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node); +bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node); struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id); #endif /* __PERF_ENV_H */ diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h index 479273130794..ecce30f086de 100644 --- a/tools/perf/util/hist.h +++ b/tools/perf/util/hist.h @@ -361,7 +361,6 @@ enum { }; void perf_hpp__init(void); -void perf_hpp__column_unregister(struct perf_hpp_fmt *format); void perf_hpp__cancel_cumulate(void); void perf_hpp__setup_output_field(struct perf_hpp_list *list); void perf_hpp__reset_output_field(struct perf_hpp_list *list); diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c index 6357ac508ad1..67b7d2af1755 100644 --- a/tools/perf/util/probe-event.c +++ b/tools/perf/util/probe-event.c @@ -2954,6 +2954,9 @@ static int find_probe_trace_events_from_map(struct perf_probe_event *pev, for (j = 0; j < num_matched_functions; j++) { sym = syms[j]; + if (sym->type != STT_FUNC) + continue; + tev = (*tevs) + ret; tp = &tev->point; if (ret == num_matched_functions) { diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 8ff2c98e9032..01e15b445cb5 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1960,6 +1960,7 @@ prefetch_event(char *buf, u64 head, size_t mmap_size, bool needs_swap, union perf_event *error) { union perf_event *event; + u16 event_size; /* * Ensure we have enough space remaining to read @@ -1972,15 +1973,23 @@ prefetch_event(char *buf, u64 head, size_t mmap_size, if (needs_swap) perf_event_header__bswap(&event->header); - if (head + event->header.size <= mmap_size) + event_size = event->header.size; + if (head + event_size <= mmap_size) return event; /* We're not fetching the event so swap back again */ if (needs_swap) perf_event_header__bswap(&event->header); - pr_debug("%s: head=%#" PRIx64 " event->header_size=%#x, mmap_size=%#zx:" - " fuzzed or compressed perf.data?\n",__func__, head, event->header.size, mmap_size); + /* Check if the event fits into the next mmapped buf. */ + if (event_size <= mmap_size - head % page_size) { + /* Remap buf and fetch again. */ + return NULL; + } + + /* Invalid input. Event size should never exceed mmap_size. */ + pr_debug("%s: head=%#" PRIx64 " event->header.size=%#x, mmap_size=%#zx:" + " fuzzed or compressed perf.data?\n", __func__, head, event_size, mmap_size); return error; } diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 901ad7f6f4dc..ea2c7beff486 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -231,7 +231,7 @@ void symbols__fixup_end(struct rb_root_cached *symbols) prev = curr; curr = rb_entry(nd, struct symbol, rb_node); - if (prev->end == prev->start && prev->end != curr->start) + if (prev->end == prev->start || prev->end != curr->start) arch__symbols__fixup_end(prev, curr); } diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index ae56c766eda1..b3c1ae288b47 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -343,32 +343,32 @@ fetch_kernel_version(unsigned int *puint, char *str, return 0; } -const char *perf_tip(const char *dirpath) +int perf_tip(char **strp, const char *dirpath) { struct strlist *tips; struct str_node *node; - char *tip = NULL; struct strlist_config conf = { .dirname = dirpath, .file_only = true, }; + int ret = 0; + *strp = NULL; tips = strlist__new("tips.txt", &conf); if (tips == NULL) - return errno == ENOENT ? NULL : - "Tip: check path of tips.txt or get more memory! ;-p"; + return -errno; if (strlist__nr_entries(tips) == 0) goto out; node = strlist__entry(tips, random() % strlist__nr_entries(tips)); - if (asprintf(&tip, "Tip: %s", node->s) < 0) - tip = (char *)"Tip: get more memory! ;-)"; + if (asprintf(strp, "Tip: %s", node->s) < 0) + ret = -ENOMEM; out: strlist__delete(tips); - return tip; + return ret; } char *perf_exe(char *buf, int len) diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 9969b8b46f7c..e4a7e1cafc70 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -37,7 +37,7 @@ int fetch_kernel_version(unsigned int *puint, #define KVER_FMT "%d.%d.%d" #define KVER_PARAM(x) KVER_VERSION(x), KVER_PATCHLEVEL(x), KVER_SUBLEVEL(x) -const char *perf_tip(const char *dirpath); +int perf_tip(char **strp, const char *dirpath); #ifndef HAVE_SCHED_GETCPU_SUPPORT int sched_getcpu(void); |