http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55505
Bug #: 55505
Summary: gcc.c-torture/execute/921202-1.c execution failures
with -fsanitize=address
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: sanitizer
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: howa...@nitro.med.uc.edu
CC: do...@gcc.gnu.org, dvyu...@gcc.gnu.org,
ja...@gcc.gnu.org, k...@gcc.gnu.org
Using...
make -k check-gcc RUNTESTFLAGS="--target_board=unix'{-fsanitize=address}'"
on x86_64-apple-darwin12 produces execution failures in...
FAIL: gcc.c-torture/execute/921202-1.c execution, -O0
FAIL: gcc.c-torture/execute/921202-1.c execution, -Og -g
which are of the form...
Executing on host: /sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/
/sw/src/fink.build/gcc48-4.8.0-1000/gcc-4.8-20121127/gcc/testsuite/gcc.c-torture/execute/921202-1.c
-fno-diagnostics-show-caret -w -O0 -lm -fsanitize=address -o
/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/testsuite/gcc/921202-1.x0
(timeout = 300)
PASS: gcc.c-torture/execute/921202-1.c compilation, -O0
Setting LD_LIBRARY_PATH to
:/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc::/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc
=================================================================
==51205== ERROR: AddressSanitizer: stack-buffer-overflow on address
0x7fff552f9a38 at pc 0x10a8ffc42 bp 0x7fff552f1950 sp 0x7fff552f1948
WRITE of size 8 at 0x7fff552f9a38 thread T0
#0 0x10a8ffc41
(/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/testsuite/gcc/921202-1.x0+0x100000c41)
#1 0x7fff8bd827e0 (/usr/lib/system/libdyld.dylib+0x27e0)
#2 0x0
Address 0x7fff552f9a38 is located at offset 32952 in frame <main> of T0's
stack:
This frame has 3 object(s):
[32, 16472) 'dx'
[16512, 32952) 'dy'
[32992, 49432) 's1'
HINT: this may be a false positive if your program uses some custom stack
unwind mechanism or swapcontext
(longjmp and C++ exceptions *are* supported)
Shadow byte and word:
0x1fffeaa5f347: f4
0x1fffeaa5f340: 00 00 00 00 00 00 00 f4
More shadow bytes:
0x1fffeaa5f320: 00 00 00 00 00 00 00 00
0x1fffeaa5f328: 00 00 00 00 00 00 00 00
0x1fffeaa5f330: 00 00 00 00 00 00 00 00
0x1fffeaa5f338: 00 00 00 00 00 00 00 00
=>0x1fffeaa5f340: 00 00 00 00 00 00 00 f4
0x1fffeaa5f348: f2 f2 f2 f2 00 00 00 00
0x1fffeaa5f350: 00 00 00 00 00 00 00 00
0x1fffeaa5f358: 00 00 00 00 00 00 00 00
0x1fffeaa5f360: 00 00 00 00 00 00 00 00
Stats: 0M malloced (0M for red zones) by 0 calls
Stats: 0M realloced by 0 calls
Stats: 0M freed by 0 calls
Stats: 0M really freed by 0 calls
Stats: 0M (0 full pages) mmaped in 0 calls
mmaps by size class:
mallocs by size class:
frees by size class:
rfrees by size class:
Stats: malloc large: 0 small slow: 0
==51205== ABORTING
FAIL: gcc.c-torture/execute/921202-1.c execution, -O0
