[cfe-dev] Debug Info for Symbolification on Darwin using Address Sanitizer?

[Jeffrey Walton]

Hi All,

What additional switches should be added to get a good trace below? Or
do I need to post-process the output?

Under gdb, I have symbols with -g3.

$export DYLD_FALLBACK_LIBRARY_PATH=/usr/local/lib/clang/3.3/lib/darwin/
$ ./testlib
...

crypt/sha2.c:342:37: runtime error: left shift of 128 by 24 places
cannot be represented in type 'int'
=================================================================
==78966==ERROR: AddressSanitizer: global-buffer-overflow on address
0x000102b71340 at pc 0x100bc4ce5 bp 0x7fff5f27de90 sp 0x7fff5f27de88
READ of size 1 at 0x000102b71340 thread T0
    #0 0x100bc4ce4 (…/./testlib+0x10024cce4)
    #1 0x10136caaf (…/./testlib+0x1009f4aaf)
    #2 0x10132058f (…/./testlib+0x1009a858f)
    #3 0x101329531 (…/./testlib+0x1009b1531)
    #4 0x101319acc (…/./testlib+0x1009a1acc)
    #5 0x10149a118 (…/./testlib+0x100b22118)
    #6 0x101494e56 (…/./testlib+0x100b1ce56)
    #7 0x101e6e8f7 (…/./testlib+0x1014f68f7)
    #8 0x101d8d477 (…/./testlib+0x101415477)
    #9 0x101d7e3a8 (…/./testlib+0x1014063a8)
    #10 0x1020d9a7b (…/./testlib+0x101761a7b)
    #11 0x1020d66cb (…/./testlib+0x10175e6cb)
    #12 0x101eddb27 (…/./testlib+0x101565b27)
    #13 0x101d8d477 (…/./testlib+0x101415477)
    #14 0x101d7e3a8 (…/./testlib+0x1014063a8)
    #15 0x101dbe7e8 (…/./testlib+0x1014467e8)
    #16 0x101dbb6cf (…/./testlib+0x1014436cf)
    #17 0x100aeee50 (…/./testlib+0x100176e50)
    #18 0x100af6c56 (…/./testlib+0x10017ec56)
    #19 0x7fff98b657e0 (/usr/lib/system/libdyld.dylib+0x27e0)
    #20 0x0

(The "…" were added for email formatting).

Thanks in advance,

Jeff

$ uname -a
Darwin riemann.home.pvt 12.4.0 Darwin Kernel Version 12.4.0: Wed May
1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64

$ /usr/local/bin/clang -v
clang version 3.3 (tags/RELEASE_33/final)
Target: x86_64-apple-darwin12.4.0
Thread model: posix

$ make clean
rm -f *.o core testlib stestlib tools/endian libcl.a libcl.so.3.4.3
$ make CC="/usr/local/bin/clang -Wl,-lresolv -fsanitize=address
-fsanitize=undefined"
ODBC interface detected, enabling ODBC support.
LDAP interface detected, enabling LDAP support
  (Enabling additional source code options for development version).
/usr/local/bin/clang -Wl,-lresolv -fsanitize=address
-fsanitize=undefined -c -D__UNIX__ -DNDEBUG -I. -DDATA_LITTLEENDIAN
-DHAS_ODBC -DUSE_ODBC -DHAS_LDAP -DUSE_LDAP -DUSE_CERT_DNSTRING
-DUSE_DNSSRV -DUSE_ECC -g3 -DDEBUG=1 -UNDEBUG -DHAS_RECURSIVE_MUTEX
-DHAS_ROBUST_MUTEX -DOSVERSION=1 -fomit-frame-pointer -o
./static-obj/bn_add.o bn/bn_add.c
...