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string/test-memcpy error reporting

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http://sourceware.org/ml/libc-alpha/2013-08/msg00094.html

Using plain %s here runs the risk of segfaulting when displaying the
string.  src and dst aren't zero terminated strings.

	* string/test-memcpy.c (do_one_test): When reporting errors, print
	string address and don't overrun end of string.
This commit is contained in:
Alan Modra 2013-08-17 18:37:58 +09:30
parent 466b039332
commit e0f7a38046
2 changed files with 7 additions and 2 deletions
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ChangeLog
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@ -1,3 +1,8 @@
2013-10-04 Alan Modra <amodra@gmail.com>
* string/test-memcpy.c (do_one_test): When reporting errors, print
string address and don't overrun end of string.
2013-10-04 Alan Modra <amodra@gmail.com>
* sysdeps/powerpc/powerpc64/power7/memchr.S: Replace rlwimi with

4
string/test-memcpy.c
View File

@ -63,8 +63,8 @@ do_one_test (impl_t *impl, char *dst, const char *src,
if (memcmp (dst, src, len) != 0)
{
error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
impl->name, dst, src);
error (0, 0, "Wrong result in function %s dst %p \"%.*s\" src %p \"%.*s\" len %zu",
impl->name, dst, (int) len, dst, src, (int) len, src, len);
ret = 1;
return;
}