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* [Bug sanitizer/61693] New: [asan] is not intercepting aligned_alloc
@ 2014-07-03 23:01 larsbj at gullik dot net
2014-07-04 6:55 ` [Bug sanitizer/61693] " kcc at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: larsbj at gullik dot net @ 2014-07-03 23:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61693
Bug ID: 61693
Summary: [asan] is not intercepting aligned_alloc
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
Assignee: unassigned at gcc dot gnu.org
Reporter: larsbj at gullik dot net
CC: dodji at gcc dot gnu.org, dvyukov at gcc dot gnu.org,
jakub at gcc dot gnu.org, kcc at gcc dot gnu.org
cat aligned_alloc.c
#include <stdlib.h>
int main(void)
{
void * p = aligned_alloc(128, 1024);
free(p);
}
$ gcc -std=c11 -fsanitize=address aligned_alloc.c && ./a.out
=================================================================
==28341==ERROR: AddressSanitizer: attempting free on address which was not
malloc()-ed: 0x000000728080 in thread T0
#0 0x7fa78060d2d7 in __interceptor_free
../../../../gcc/libsanitizer/asan/asan_malloc_linux.cc:62
#1 0x40077e in main (/home/lgb/Development/test/a.out+0x40077e)
#2 0x31c0821d64 in __libc_start_main (/lib64/libc.so.6+0x31c0821d64)
#3 0x400688 (/home/lgb/Development/test/a.out+0x400688)
AddressSanitizer can not describe address in more detail (wild memory access
suspected).
SUMMARY: AddressSanitizer: bad-free
../../../../gcc/libsanitizer/asan/asan_malloc_linux.cc:62 __interceptor_free
==28341==ABORTING
AFAICS the asan interceptor for aligned_alloc is missing.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug sanitizer/61693] [asan] is not intercepting aligned_alloc
2014-07-03 23:01 [Bug sanitizer/61693] New: [asan] is not intercepting aligned_alloc larsbj at gullik dot net
@ 2014-07-04 6:55 ` kcc at gcc dot gnu.org
2014-07-04 7:17 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: kcc at gcc dot gnu.org @ 2014-07-04 6:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61693
Kostya Serebryany <kcc at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2014-07-04
Assignee|unassigned at gcc dot gnu.org |kcc at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
Interesting. This is a relatively new c11 feature.
On older Linux distros this does not compile nor link:
aligned_alloc.c: In function ‘main’:
aligned_alloc.c:5:3: warning: implicit declaration of function ‘aligned_alloc’
[-Wimplicit-function-declaration]
void * p = aligned_alloc(128, 1024);
...
/tmp/ccJJcsqx.o: In function `main':
aligned_alloc.c:(.text+0x13): undefined reference to `aligned_alloc'
On Ubuntu 14.04 it behaves as you describe and indeed we need to add an
interceptor. The tricky part is to add a test that will work on older distros
>From gcc-bugs-return-455624-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Fri Jul 04 07:04:10 2014
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From: "manuel.lauss at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/61654] [4.9/4.10 Regression] ICE in release_function_body, at cgraph.c:1699
Date: Fri, 04 Jul 2014 07:04:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?ida654
--- Comment #4 from Manuel Lauss <manuel.lauss at googlemail dot com> ---
The patch shifted the ICE to the following, same source file:
In file included from ./engines/tony/input.h:32:0,
from engines/tony/font.cpp:32:
./common/events.h:239:7: internal compiler error: in ipa_propagate_frequency,
at ipa-profile.c:411
class DefaultEventMapper : public EventMapper {
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://bugs.gentoo.org/> for instructions.
Makefile.common:98: recipe for target 'engines/tony/font.o' failed
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug sanitizer/61693] [asan] is not intercepting aligned_alloc
2014-07-03 23:01 [Bug sanitizer/61693] New: [asan] is not intercepting aligned_alloc larsbj at gullik dot net
2014-07-04 6:55 ` [Bug sanitizer/61693] " kcc at gcc dot gnu.org
@ 2014-07-04 7:17 ` jakub at gcc dot gnu.org
2014-07-04 7:23 ` kcc at gcc dot gnu.org
2014-07-04 7:43 ` kcc at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2014-07-04 7:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61693
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Just declare it yourself? If libasan always contains the aligned_alloc symbol,
then the testcase will link even when system glibc does not contain it...
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug sanitizer/61693] [asan] is not intercepting aligned_alloc
2014-07-03 23:01 [Bug sanitizer/61693] New: [asan] is not intercepting aligned_alloc larsbj at gullik dot net
2014-07-04 6:55 ` [Bug sanitizer/61693] " kcc at gcc dot gnu.org
2014-07-04 7:17 ` jakub at gcc dot gnu.org
@ 2014-07-04 7:23 ` kcc at gcc dot gnu.org
2014-07-04 7:43 ` kcc at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: kcc at gcc dot gnu.org @ 2014-07-04 7:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61693
--- Comment #3 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
yep, that's the plan...
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug sanitizer/61693] [asan] is not intercepting aligned_alloc
2014-07-03 23:01 [Bug sanitizer/61693] New: [asan] is not intercepting aligned_alloc larsbj at gullik dot net
` (2 preceding siblings ...)
2014-07-04 7:23 ` kcc at gcc dot gnu.org
@ 2014-07-04 7:43 ` kcc at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: kcc at gcc dot gnu.org @ 2014-07-04 7:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61693
Kostya Serebryany <kcc at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |eugeni.stepanov at gmail dot com,
| |glider at google dot com,
| |timurrrr at google dot com
--- Comment #4 from Kostya Serebryany <kcc at gcc dot gnu.org> ---
http://llvm.org/viewvc/llvm-project?view=revision&revision=212322 implements
aligned_alloc support on Linux.
I will let others implement Android/Windows/Mac support if relevant.
This will reach GCC with the next libsanitizer merge (not sure when),
or feel free to cherry pick in a couple of days (to make sure it works well)
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-07-04 7:43 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2014-07-03 23:01 [Bug sanitizer/61693] New: [asan] is not intercepting aligned_alloc larsbj at gullik dot net
2014-07-04 6:55 ` [Bug sanitizer/61693] " kcc at gcc dot gnu.org
2014-07-04 7:17 ` jakub at gcc dot gnu.org
2014-07-04 7:23 ` kcc at gcc dot gnu.org
2014-07-04 7:43 ` kcc at gcc dot gnu.org
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