gdb and binutils branch master updated. ebf13736b42af47c9907b5157c8e80c78dbe00e1

[palves at sourceware dot org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ebf13736b42af47c9907b5157c8e80c78dbe00e1

commit ebf13736b42af47c9907b5157c8e80c78dbe00e1
Author: Pedro Alves <palves@redhat.com>
Date:   Thu Sep 4 21:46:28 2014 +0100

    parse_number("0") reads uninitialized memory
    
    valgrind caught that parse_number reads uninitialized memory when we
    parse literal "0":
    
     $ valgrind ./gdb -q -nx -ex "set height 0"
     (...)
     ==10378== Conditional jump or move depends on uninitialised value(s)
     ==10378==    at 0x548A10: parse_number (c-exp.y:1828)
     ==10378==    by 0x54A340: lex_one_token (c-exp.y:2638)
     ==10378==    by 0x54B4BB: c_lex (c-exp.y:3089)
     ==10378==    by 0x544951: c_parse_internal (c-exp.c:2208)
     ==10378==    by 0x54BF8C: c_parse (c-exp.y:3260)
     ==10378==    by 0x6502E7: parse_exp_in_context_1 (parse.c:1221)
     ==10378==    by 0x650064: parse_exp_in_context (parse.c:1122)
     ==10378==    by 0x65001F: parse_exp_1 (parse.c:1114)
     ==10378==    by 0x650421: parse_expression (parse.c:1266)
     ==10378==    by 0x5A74B7: parse_and_eval_long (eval.c:92)
     ==10378==    by 0x501ABD: do_set_command (cli-setshow.c:302)
     ==10378==    by 0x721059: execute_command (top.c:452)
     ==10378==
     (gdb)
    
    I've pushed the obvious fix.
    
    Tested on x86_64 Fedora 20.
    
    gdb/ChangeLog:
    	* c-exp.y (parse_number): Skip handling base-switching prefixes if
    	the input is only one character long.

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

Summary of changes:
 gdb/ChangeLog |    5 +++++
 gdb/c-exp.y   |    2 +-
 2 files changed, 6 insertions(+), 1 deletions(-)


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