45 lines
1.5 KiB
Diff
45 lines
1.5 KiB
Diff
|
commit b2f32e746492615a6eb3e66fac1e766e32e8deb1
|
||
|
|
Author: Florian Weimer <fweimer@redhat.com>
|
||
|
|
Date: Thu Jul 21 12:12:08 2022 +0200
|
||
|
|
|
||
|
|
malloc: Simplify implementation of __malloc_assert
|
||
|
|
|
||
|
|
It is prudent not to run too much code after detecting heap
|
||
|
|
corruption, and __fxprintf is really complex. The line number
|
||
|
|
and file name do not carry much information, so it is not included
|
||
|
|
in the error message. (__libc_message only supports %s formatting.)
|
||
|
|
The function name and assertion should provide some context.
|
||
|
|
|
||
|
|
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
|
||
|
|
(cherry picked from commit ac8047cdf326504f652f7db97ec96c0e0cee052f)
|
||
|
|
|
||
|
|
diff --git a/malloc/malloc.c b/malloc/malloc.c
|
||
|
|
index 7882c70f0a0312d1..d31e985ecce968fe 100644
|
||
|
|
--- a/malloc/malloc.c
|
||
|
|
+++ b/malloc/malloc.c
|
||
|
|
@@ -294,19 +294,14 @@
|
||
|
|
# define __assert_fail(assertion, file, line, function) \
|
||
|
|
__malloc_assert(assertion, file, line, function)
|
||
|
|
|
||
|
|
-extern const char *__progname;
|
||
|
|
-
|
||
|
|
-static void
|
||
|
|
+_Noreturn static void
|
||
|
|
__malloc_assert (const char *assertion, const char *file, unsigned int line,
|
||
|
|
const char *function)
|
||
|
|
{
|
||
|
|
- (void) __fxprintf (NULL, "%s%s%s:%u: %s%sAssertion `%s' failed.\n",
|
||
|
|
- __progname, __progname[0] ? ": " : "",
|
||
|
|
- file, line,
|
||
|
|
- function ? function : "", function ? ": " : "",
|
||
|
|
- assertion);
|
||
|
|
- fflush (stderr);
|
||
|
|
- abort ();
|
||
|
|
+ __libc_message (do_abort, "\
|
||
|
|
+Fatal glibc error: malloc assertion failure in %s: %s\n",
|
||
|
|
+ function, assertion);
|
||
|
|
+ __builtin_unreachable ();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|