diff options
Diffstat (limited to 'malloc/mtrace.c')
| -rw-r--r-- | malloc/mtrace.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/malloc/mtrace.c b/malloc/mtrace.c index d9960bdaf3..c369ab577c 100644 --- a/malloc/mtrace.c +++ b/malloc/mtrace.c @@ -50,7 +50,7 @@ static FILE *mallstream; static const char mallenv[]= "MALLOC_TRACE"; -static char malloc_trace_buffer[TRACE_BUFFER_SIZE]; +static char *malloc_trace_buffer; __libc_lock_define_initialized (static, lock); @@ -237,7 +237,7 @@ tr_reallochook (ptr, size, caller) /* This function gets called to make sure all memory the library allocates get freed and so does not irritate the user when studying the mtrace output. */ -static void +static void __libc_freeres_fn_section release_libc_mem (void) { /* Only call the free function if we still are running in mtrace mode. */ @@ -274,6 +274,10 @@ mtrace () #endif if (mallfile != NULL || mallwatch != NULL) { + char *mtb = malloc (TRACE_BUFFER_SIZE); + if (mtb == NULL) + return; + mallstream = fopen (mallfile != NULL ? mallfile : "/dev/null", "w"); if (mallstream != NULL) { @@ -285,6 +289,7 @@ mtrace () __fcntl (fileno (mallstream), F_SETFD, flags); } /* Be sure it doesn't malloc its buffer! */ + malloc_trace_buffer = mtb; setvbuf (mallstream, malloc_trace_buffer, _IOFBF, TRACE_BUFFER_SIZE); fprintf (mallstream, "= Start\n"); tr_old_free_hook = __free_hook; @@ -303,6 +308,8 @@ mtrace () } #endif } + else + free (mtb); } } |