[Bug sanitizer/55309] gcc's address-sanitizer 66% slower than clang's

[kcc at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55309



--- Comment #49 from Kostya Serebryany <kcc at gcc dot gnu.org> 2013-02-22 
14:29:27 UTC ---

with -gdwarf-3: 

==11621== ERROR: AddressSanitizer: global-buffer-overflow on address

0x00000078e2a5 at pc 0x4e47d7 bp 0x7fff553d4cc0 sp 0x7fff553d4cb8

READ of size 1 at 0x00000078e2a5 thread T0

    #0 0x4e47d6 in PerlIO_find_layer perlio.c:751

    #1 0x4e63e6 in PerlIO_default_buffer perlio.c:1015

    #2 0x4e678e in PerlIO_default_layers perlio.c:1113

    #3 0x4e7a41 in PerlIO_resolve_layers perlio.c:1433

    #4 0x4e8145 in PerlIO_openn perlio.c:1519

    #5 0x4f5c08 in PerlIO_fdopen perlio.c:4745

    #6 0x4e68a3 in PerlIO_stdstreams perlio.c:1150

    #7 0x4f5b46 in Perl_PerlIO_stdin perlio.c:4686

    #8 0x4dd7ee in S_open_script perl.c:3348

    #9 0x4d3be6 in S_parse_body perl.c:1718

    #10 0x4d2a4b in perl_parse perl.c:1312

    #11 0x4f6ee8 in main perlmain.c:96

    #12 0x7f686f32576c in __libc_start_main libc-start.c:226

    #13 0x4037d8 in _start ??:0

0x00000078e2a5 is located 0 bytes to the right of global variable '*.LC50

(perlio.c)' (0x78e2a0) of size 5

  '*.LC50 (perlio.c)' is ascii string 'unix'