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author | Jakub Jelinek <jakub@redhat.com> | 2011-12-30 17:13:56 -0500 |
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committer | Ulrich Drepper <drepper@gmail.com> | 2011-12-30 17:13:56 -0500 |
commit | 2ba92745c36eb3c3f3af0ce1b0aebd255c63a13b (patch) | |
tree | a903cdfb8d240977cabd19e853a1bf213f3026f6 /csu | |
parent | c0da14cdda1fa552262ce3624156194eef43e973 (diff) | |
download | glibc-2ba92745c36eb3c3f3af0ce1b0aebd255c63a13b.tar.gz glibc-2ba92745c36eb3c3f3af0ce1b0aebd255c63a13b.tar.xz glibc-2ba92745c36eb3c3f3af0ce1b0aebd255c63a13b.zip |
Fix up regcomp/regexec
The problem is that parse_bracket_symbol is miscompiled, and it turns out it is because of an incorrect attribute on re_string_fetch_byte_case. Unlike re_string_peek_byte_case, this one is really not pure, it modifies memory (increments pstr->cur_idx), and with the pure attribute GCC assumed it doesn't and it cached the presumed value of regexp->cur_idx in a variable across the for (;; ++i) { if (i >= BRACKET_NAME_BUF_SIZE) return REG_EBRACK; if (token->type == OP_OPEN_CHAR_CLASS) ch = re_string_fetch_byte_case (regexp); else ch = re_string_fetch_byte (regexp); if (re_string_eoi(regexp)) return REG_EBRACK; if (ch == delim && re_string_peek_byte (regexp, 0) == ']') break; elem->opr.name[i] = ch; }
Diffstat (limited to 'csu')
0 files changed, 0 insertions, 0 deletions