diff options
Diffstat (limited to 'mwrap_core.h')
| -rw-r--r-- | mwrap_core.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/mwrap_core.h b/mwrap_core.h index ec08ee1..2ef550a 100644 --- a/mwrap_core.h +++ b/mwrap_core.h @@ -714,6 +714,14 @@ char **bt_syms(void * const *addrlist, uint32_t size) return s; } +/* supported by modern gcc + clang */ +#define AUTO_FREE __attribute__((__cleanup__(cleanup_free))) +static void cleanup_free(void *any) +{ + void **p = any; + free(*p); +} + static void *dump_to_file(struct dump_arg *a) { struct cds_lfht_iter iter; @@ -730,13 +738,11 @@ static void *dump_to_file(struct dump_arg *a) if (l->total <= a->min) continue; if (loc_is_addr(l)) { - char **s = bt_syms(l->bt, 1); + AUTO_FREE char **s = bt_syms(l->bt, 1); - if (s) { + if (s) fprintf(a->fp, "%16zu %12zu %s\n", l->total, l->allocations, s[0]); - free(s); - } } else { fprintf(a->fp, "%16zu %12zu %s:%zu\n", l->total, l->allocations, l->f->fn, l->lineno); |