gdb and binutils branch master updated. 6694c4110a37bc951d01132d6e56445d57350627

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6694c4110a37bc951d01132d6e56445d57350627

commit 6694c4110a37bc951d01132d6e56445d57350627
Author: Jan Kratochvil <jan.kratochvil@redhat.com>
Date:   Tue Aug 19 22:55:10 2014 +0200

    Fix -fsanitize=address on unreadable inferior strings
    
    echo 'void f(char *s){}main(){f((char *)1);}'|gcc -g -x c -;../gdb ./a.out -ex 'b f' -ex r
    ====ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020000aaccf at pc 0x96eea7 bp 0x7fff75bdbc90 sp 0x7fff75bdbc80
    READ of size 1 at 0x6020000aaccf thread T0
        #0 0x96eea6 in extract_unsigned_integer .../gdb/findvar.c:108
        #1 0x9df02b in val_print_string .../gdb/valprint.c:2513
    [...]
    0x6020000aaccf is located 1 bytes to the left of 8-byte region [0x6020000aacd0,0x6020000aacd8)
    allocated by thread T0 here:
        #0 0x7f45fad26b97 in malloc (/lib64/libasan.so.1+0x57b97)
        #1 0xdb3409 in xmalloc common/common-utils.c:45
        #2 0x9d8cf9 in read_string .../gdb/valprint.c:1845
        #3 0x9defca in val_print_string .../gdb/valprint.c:2502
    [..]
    ====ABORTING
    
    gdb/
    2014-08-18  Jan Kratochvil  <jan.kratochvil@redhat.com>
    
    	Fix -fsanitize=address on unreadable inferior strings.
    	* valprint.c (val_print_string): Fix access before BUFFER.

-----------------------------------------------------------------------

Summary of changes:
 gdb/ChangeLog  |    5 +++++
 gdb/valprint.c |    6 ++++--
 2 files changed, 9 insertions(+), 2 deletions(-)


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