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From: "howarth at nitro dot med.uc.edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug bootstrap/55289] darwin bootstrap fails due to missing libsanitizer/interception/mach_override directory and files
Date: Tue, 13 Nov 2012 20:50:00 -0000 [thread overview]
Message-ID: <bug-55289-4-KDPOqkfG75@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-55289-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55289
--- Comment #14 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-11-13 20:50:37 UTC ---
Actually, this appears to be just noise on the output from a functional
libasan. If I use the testcase from
http://code.google.com/p/address-sanitizer/wiki/AddressSanitizer of...
% cat tests/use-after-free.c
#include <stdlib.h>
int main() {
char *x = (char*)malloc(10 * sizeof(char*));
free(x);
return x[5];
}
I get...
howarth% gcc-fsf-4.8 -faddress-sanitizer -framework CoreFoundation -O1
-fno-omit-frame-pointer -g use-after-free.c -lasan
howarth% ./a.out
mach_override: some instructions unknown! Need to update mach_override.c
err = f8000001
../../../../gcc-4.8-20121113/libsanitizer/interception/mach_override/mach_override.c:308
err = f8000001
../../../../gcc-4.8-20121113/libsanitizer/interception/mach_override/mach_override.c:321
err = f8000001
../../../../gcc-4.8-20121113/libsanitizer/interception/mach_override/mach_override.c:327
err = f8000001
../../../../gcc-4.8-20121113/libsanitizer/interception/mach_override/mach_override.c:340
err = f8000001
../../../../gcc-4.8-20121113/libsanitizer/interception/mach_override/mach_override.c:345
=================================================================
==88551== ERROR: AddressSanitizer heap-use-after-free on address 0x000105cbaf45
at pc 0x103001f12 bp 0x7fff5cbfe8f0 sp 0x7fff5cbfe8e8
READ of size 1 at 0x000105cbaf45 thread T0
#0 0x103001f11 (/Users/howarth/./a.out+0x100000f11)
#1 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0)
#2 0x0
0x000105cbaf45 is located 5 bytes inside of 80-byte region
[0x000105cbaf40,0x000105cbaf90)
freed by thread T0 here:
#0 0x1030147a4 (/sw/lib/gcc4.8/lib/libasan.0.dylib+0xb7a4)
#1 0x10301492a (/sw/lib/gcc4.8/lib/libasan.0.dylib+0xb92a)
#2 0x103001ee5 (/Users/howarth/./a.out+0x100000ee5)
#3 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0)
#4 0x0
previously allocated by thread T0 here:
#0 0x103014255 (/sw/lib/gcc4.8/lib/libasan.0.dylib+0xb255)
#1 0x7fff94c3b152 (/usr/lib/system/libsystem_c.dylib+0x2d152)
#2 0x7fff94c3bba6 (/usr/lib/system/libsystem_c.dylib+0x2dba6)
#3 0x103001eda (/Users/howarth/./a.out+0x100000eda)
#4 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0)
Shadow byte and word:
0x100020b975e8: fd
0x100020b975e8: fd fd fd fd fd fd fd fd
More shadow bytes:
0x100020b975c8: fa fa fa fa fa fa fa fa
0x100020b975d0: fa fa fa fa fa fa fa fa
0x100020b975d8: fa fa fa fa fa fa fa fa
0x100020b975e0: fa fa fa fa fa fa fa fa
=>0x100020b975e8: fd fd fd fd fd fd fd fd
0x100020b975f0: fd fd fd fd fd fd fd fd
0x100020b975f8: fa fa fa fa fa fa fa fa
0x100020b97600: fa fa fa fa fa fa fa fa
0x100020b97608: fa fa fa fa fa fa fa fa
Stats: 0M malloced (0M for red zones) by 1 calls
Stats: 0M realloced by 0 calls
Stats: 0M freed by 1 calls
Stats: 0M really freed by 0 calls
Stats: 0M (128 full pages) mmaped in 1 calls
mmaps by size class: 8:2047;
mallocs by size class: 8:1;
frees by size class: 8:1;
rfrees by size class:
Stats: malloc large: 0 small slow: 1
==88551== ABORTING
compared to...
howarth% /sw/opt/llvm-3.2/bin/clang -fsanitize=address -O1
-fno-omit-frame-pointer -g use-after-free.c
howarth% ./a.out
=================================================================
==88537== ERROR: AddressSanitizer: heap-use-after-free on address
0x00010a0a2f45 at pc 0x107dcae54 bp 0x7fff57e358f0 sp 0x7fff57e358e8
READ of size 1 at 0x00010a0a2f45 thread T0
#0 0x107dcae53 (/Users/howarth/./a.out+0x100000e53)
#1 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0)
#2 0x0
0x00010a0a2f45 is located 5 bytes inside of 80-byte region
[0x00010a0a2f40,0x00010a0a2f90)
freed by thread T0 here:
#0 0x107dd3878 (/Users/howarth/./a.out+0x100009878)
#1 0x107dd2ef2 (/Users/howarth/./a.out+0x100008ef2)
#2 0x107dcae1a (/Users/howarth/./a.out+0x100000e1a)
#3 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0)
#4 0x0
previously allocated by thread T0 here:
#0 0x107dd3682 (/Users/howarth/./a.out+0x100009682)
#1 0x7fff94c3b152 (/usr/lib/system/libsystem_c.dylib+0x2d152)
#2 0x7fff94c3bba6 (/usr/lib/system/libsystem_c.dylib+0x2dba6)
#3 0x107dcae0f (/Users/howarth/./a.out+0x100000e0f)
#4 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0)
Shadow byte and word:
0x1000214145e8: fd
0x1000214145e8: fd fd fd fd fd fd fd fd
More shadow bytes:
0x1000214145c8: fa fa fa fa fa fa fa fa
0x1000214145d0: fa fa fa fa fa fa fa fa
0x1000214145d8: fa fa fa fa fa fa fa fa
0x1000214145e0: fa fa fa fa fa fa fa fa
=>0x1000214145e8: fd fd fd fd fd fd fd fd
0x1000214145f0: fd fd fd fd fd fd fd fd
0x1000214145f8: fa fa fa fa fa fa fa fa
0x100021414600: fa fa fa fa fa fa fa fa
0x100021414608: fa fa fa fa fa fa fa fa
Stats: 0M malloced (0M for red zones) by 1 calls
Stats: 0M realloced by 0 calls
Stats: 0M freed by 1 calls
Stats: 0M really freed by 0 calls
Stats: 0M (128 full pages) mmaped in 1 calls
mmaps by size class: 8:2047;
mallocs by size class: 8:1;
frees by size class: 8:1;
rfrees by size class:
Stats: malloc large: 0 small slow: 1
==88537== ABORTING
next prev parent reply other threads:[~2012-11-13 20:50 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-12 19:32 [Bug bootstrap/55289] New: " howarth at nitro dot med.uc.edu
2012-11-12 19:32 ` [Bug bootstrap/55289] " howarth at nitro dot med.uc.edu
2012-11-12 20:53 ` dominiq at lps dot ens.fr
2012-11-13 0:47 ` howarth at nitro dot med.uc.edu
2012-11-13 13:24 ` dominiq at lps dot ens.fr
2012-11-13 13:55 ` iains at gcc dot gnu.org
2012-11-13 14:07 ` howarth at nitro dot med.uc.edu
2012-11-13 14:11 ` dominiq at lps dot ens.fr
2012-11-13 14:30 ` howarth at nitro dot med.uc.edu
2012-11-13 14:39 ` howarth at nitro dot med.uc.edu
2012-11-13 19:50 ` howarth at nitro dot med.uc.edu
2012-11-13 19:52 ` howarth at nitro dot med.uc.edu
2012-11-13 20:13 ` howarth at nitro dot med.uc.edu
2012-11-13 20:21 ` howarth at nitro dot med.uc.edu
2012-11-13 20:26 ` howarth at nitro dot med.uc.edu
2012-11-13 20:50 ` howarth at nitro dot med.uc.edu [this message]
2012-11-13 21:27 ` konstantin.s.serebryany at gmail dot com
2012-11-13 21:55 ` howarth at nitro dot med.uc.edu
2012-11-13 22:14 ` howarth at nitro dot med.uc.edu
2012-11-13 23:21 ` dominiq at lps dot ens.fr
2012-11-14 1:29 ` howarth at nitro dot med.uc.edu
2012-11-14 1:30 ` howarth at nitro dot med.uc.edu
2012-11-14 14:24 ` howarth at nitro dot med.uc.edu
2012-11-14 14:46 ` howarth at nitro dot med.uc.edu
2012-11-14 15:52 ` howarth at nitro dot med.uc.edu
2012-11-14 16:00 ` howarth at nitro dot med.uc.edu
2012-11-14 16:02 ` howarth at nitro dot med.uc.edu
2012-11-14 16:03 ` howarth at nitro dot med.uc.edu
2012-11-14 16:06 ` howarth at nitro dot med.uc.edu
2012-11-14 16:14 ` glider at google dot com
2012-11-14 16:41 ` glider at google dot com
2012-11-14 16:54 ` howarth at nitro dot med.uc.edu
2012-11-14 19:10 ` howarth at nitro dot med.uc.edu
2012-11-14 20:21 ` konstantin.s.serebryany at gmail dot com
2012-11-14 20:57 ` howarth at nitro dot med.uc.edu
2012-11-14 22:09 ` howarth at nitro dot med.uc.edu
2012-11-14 23:10 ` konstantin.s.serebryany at gmail dot com
2012-11-14 23:49 ` dominiq at lps dot ens.fr
2012-11-15 2:07 ` howarth at nitro dot med.uc.edu
2012-11-15 2:10 ` howarth at nitro dot med.uc.edu
2012-11-15 8:18 ` glider at google dot com
2012-11-15 13:46 ` howarth at nitro dot med.uc.edu
2012-11-15 13:51 ` howarth at nitro dot med.uc.edu
2012-11-15 15:04 ` dominiq at lps dot ens.fr
2012-11-15 15:13 ` howarth at nitro dot med.uc.edu
2012-11-15 17:54 ` howarth at nitro dot med.uc.edu
2012-11-15 17:58 ` iains at gcc dot gnu.org
2012-11-15 18:29 ` howarth at nitro dot med.uc.edu
2012-11-15 19:09 ` howarth at nitro dot med.uc.edu
2012-11-15 19:19 ` howarth at nitro dot med.uc.edu
2012-11-22 10:43 ` [Bug sanitizer/55289] " glider at google dot com
2012-11-24 22:37 ` howarth at nitro dot med.uc.edu
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