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| author | Ian Lance Taylor <iant@google.com> | 2015-09-08 16:46:16 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2015-09-08 16:46:16 +0000 |
| commit | c478516be7517e20e150150fea4399d60434bfc3 (patch) | |
| tree | eae6d20512a5643294e17bfb41e704ab2559be16 /libbacktrace/internal.h | |
| parent | 2eab96661b6c08679ffd4a084f59f3935cfcddb9 (diff) | |
| download | gcc-c478516be7517e20e150150fea4399d60434bfc3.zip gcc-c478516be7517e20e150150fea4399d60434bfc3.tar.gz gcc-c478516be7517e20e150150fea4399d60434bfc3.tar.bz2 | |
re PR other/67457 (segfault in libbacktrace)
PR other/67457
* backtrace.c: #include "internal.h".
(struct backtrace_data): Add can_alloc field.
(unwind): If can_alloc is false, don't try to get file/line
information.
(backtrace_full): Set can_alloc field in bdata.
* alloc.c (backtrace_alloc): Don't call error_callback if it is
NULL.
* mmap.c (backtrace_alloc): Likewise.
* internal.h: Update comments for backtrace_alloc and
backtrace_free.
From-SVN: r227533
Diffstat (limited to 'libbacktrace/internal.h')
| -rw-r--r-- | libbacktrace/internal.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libbacktrace/internal.h b/libbacktrace/internal.h index 30f99ca..b139e50 100644 --- a/libbacktrace/internal.h +++ b/libbacktrace/internal.h @@ -201,13 +201,15 @@ extern int backtrace_close (int descriptor, extern void backtrace_qsort (void *base, size_t count, size_t size, int (*compar) (const void *, const void *)); -/* Allocate memory. This is like malloc. */ +/* Allocate memory. This is like malloc. If ERROR_CALLBACK is NULL, + this does not report an error, it just returns NULL. */ extern void *backtrace_alloc (struct backtrace_state *state, size_t size, backtrace_error_callback error_callback, void *data) ATTRIBUTE_MALLOC; -/* Free memory allocated by backtrace_alloc. */ +/* Free memory allocated by backtrace_alloc. If ERROR_CALLBACK is + NULL, this does not report an error. */ extern void backtrace_free (struct backtrace_state *state, void *mem, size_t size, |