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Add quarantine unit tests.

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Verify that freed regions are quarantined, and that redzone corruption
is detected.

Introduce a testing idiom for intercepting/replacing internal functions.
In this case the replaced function is ordinarily a static function, but
the idiom should work similarly for library-private functions.
This commit is contained in:
Jason Evans
2013-12-17 15:14:36 -08:00
parent eca367b779
commit 0d6c5d8bd0
7 changed files with 193 additions and 15 deletions
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13
src/quarantine.c
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@@ -141,8 +141,17 @@ quarantine(void *ptr)
obj->usize = usize;
quarantine->curbytes += usize;
quarantine->curobjs++;
if (opt_junk)
memset(ptr, 0x5a, usize);
if (config_fill && opt_junk) {
/*
* Only do redzone validation if Valgrind isn't in
* operation.
*/
if ((config_valgrind == false || opt_valgrind == false)
&& usize <= SMALL_MAXCLASS)
arena_quarantine_junk_small(ptr, usize);
else
memset(ptr, 0x5a, usize);
}
} else {
assert(quarantine->curbytes == 0);
idalloc(ptr);