commit 0dca38c4afd868da65e0b5c0d76fc30bd3114994 Author: Stefan Liebler Date: Tue Jun 25 08:57:40 2019 +0200 Fix build warnings in locale/programs/ld-ctype.c This patch fixes the gcc warnings seen with gcc 9 -march>=z13 on s390x: programs/ld-ctype.c: In function ‘ctype_read’: programs/ld-ctype.c:1392:13: error: ‘wch’ may be used uninitialized in this function [-Werror=maybe-uninitialized] 1392 | uint32_t wch; | ^~~ programs/ld-ctype.c:1401:7: error: ‘seq’ may be used uninitialized in this function [-Werror=maybe-uninitialized] 1401 | if (seq != NULL && seq->nbytes == 1) | ^ programs/ld-ctype.c:1391:20: note: ‘seq’ was declared here 1391 | struct charseq *seq; | ^~~ Both seq and wch are uninitialized if get_character fails. Thus we are now returning with an error. ChangeLog: * locale/programs/ld-ctype.c (charclass_symbolic_ellipsis): Return error if get_character fails. diff --git a/locale/programs/ld-ctype.c b/locale/programs/ld-ctype.c index e6105928da..cfc9c43fd5 100644 --- a/locale/programs/ld-ctype.c +++ b/locale/programs/ld-ctype.c @@ -1396,7 +1396,8 @@ charclass_symbolic_ellipsis (struct linereader *ldfile, (int) (now->val.str.lenmb - (cp - last_str)), from); - get_character (now, charmap, repertoire, &seq, &wch); + if (get_character (now, charmap, repertoire, &seq, &wch)) + goto invalid_range; if (seq != NULL && seq->nbytes == 1) /* Yep, we can store information about this byte sequence. */