http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55502
--- Comment #4 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-11-28
00:58:03 UTC ---
Similar failures are seen for....
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O1
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O2
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O3
-fomit-frame-pointer
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O3
-fomit-frame-pointer -funroll-loops
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O3
-fomit-frame-pointer -funroll-all-loops -finline-functions
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O3 -g
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -Os
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -Og -g
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O2 -flto
-flto-partition=none
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O2 -flto
which appears 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/builtins/mempcpy-chk.c
/sw/src/fink.build/gcc48-4.8.0-1000/gcc-4.8-20121127/gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy-chk-lib.c
/sw/src/fink.build/gcc48-4.8.0-1000/gcc-4.8-20121127/gcc/testsuite/gcc.c-torture/execute/builtins/lib/main.c
-fno-diagnostics-show-caret -w -O0 -fno-tree-loop-distribute-patterns -lm
-fsanitize=address -o
/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/testsuite/gcc/mempcpy-chk.x0
(timeout = 300)
PASS: gcc.c-torture/execute/builtins/mempcpy-chk.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
PASS: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O0
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/builtins/mempcpy-chk.c
/sw/src/fink.build/gcc48-4.8.0-1000/gcc-4.8-20121127/gcc/testsuite/gcc.c-torture/execute/builtins/mempcpy-chk-lib.c
/sw/src/fink.build/gcc48-4.8.0-1000/gcc-4.8-20121127/gcc/testsuite/gcc.c-torture/execute/builtins/lib/main.c
-fno-diagnostics-show-caret -w -O1 -fno-tree-loop-distribute-patterns -lm
-fsanitize=address -o
/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/testsuite/gcc/mempcpy-chk.x1
(timeout = 300)
PASS: gcc.c-torture/execute/builtins/mempcpy-chk.c compilation, -O1
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
=================================================================
==68188== ERROR: AddressSanitizer: stack-buffer-overflow on address
0x7fff5f518a34 at pc 0x1006e9a09 bp 0x7fff5f5189e0 sp 0x7fff5f5189d8
WRITE of size 1 at 0x7fff5f518a34 thread T0
#0 0x1006e9a08
(/sw/src/fink.build/gcc48-4.8.0-1000/darwin_objdir/gcc/testsuite/gcc/mempcpy-chk.x1+0x100005a08)
#1 0x0
Address 0x7fff5f518a34 is located at offset 52 in frame <test4> of T0's stack:
This frame has 1 object(s):
[32, 52) 'buf3'
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:
0x1fffebea3146: 4
0x1fffebea3140: f1 f1 f1 f1 00 00 04 f4
More shadow bytes:
0x1fffebea3120: 00 00 00 00 00 00 00 00
0x1fffebea3128: 00 00 00 00 00 00 00 00
0x1fffebea3130: 00 00 00 00 00 00 00 00
0x1fffebea3138: 00 00 00 00 00 00 00 00
=>0x1fffebea3140: f1 f1 f1 f1 00 00 04 f4
0x1fffebea3148: f3 f3 f3 f3 00 00 00 00
0x1fffebea3150: 00 00 00 00 00 00 00 00
0x1fffebea3158: 00 00 00 00 00 00 00 00
0x1fffebea3160: 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
==68188== ABORTING
FAIL: gcc.c-torture/execute/builtins/mempcpy-chk.c execution, -O1
