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| author | Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> | 2022-09-21 10:51:05 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-10-05 18:04:13 -0300 |
| commit | 442e3a21724b07b3ae1c3c5eeba4a8e44a1a50a3 (patch) | |
| tree | 68bc49e38807dfaa2d93e07ec710c834323a2cdd /posix | |
| parent | 9ec1c8cd243e9d7d63e188620a7e70a3b69777e6 (diff) | |
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posix: Suppress -Os may be used uninitialized warnings on regexec
GCC with -Os issues may uninitialized warnings on regexec code.
Checked on x86_64-linux-gnu and i686-linux-gnu.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/regexec.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/posix/regexec.c b/posix/regexec.c index cffeaf2845..386a757f35 100644 --- a/posix/regexec.c +++ b/posix/regexec.c @@ -3768,7 +3768,13 @@ check_node_accept_bytes (const re_dfa_t *dfa, Idx node_idx, _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB); for (i = 0; i < cset->ncoll_syms; ++i) { + /* The compiler might warn that extra may be used uninitialized, + however the loop will be executed iff ncoll_syms is larger + than 0,which means extra will be already initialized. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_Os_NEEDS_COMMENT (8, "-Wmaybe-uninitialized"); const unsigned char *coll_sym = extra + cset->coll_syms[i]; + DIAG_POP_NEEDS_COMMENT; /* Compare the length of input collating element and the length of current collating element. */ if (*coll_sym != elem_len) |