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| author | Jakub Jelinek <jakub@redhat.com> | 2013-02-09 19:41:00 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2013-02-09 19:41:00 +0100 |
| commit | 4ab7747c26fa2416e19c3bb1205f795d0753c605 (patch) | |
| tree | b47ee0dea338499bcaca57895e4cc02cb96debec /libiberty/regex.c | |
| parent | 0c88522946c393464b4f00d1bac1a5387c158048 (diff) | |
| download | gcc-4ab7747c26fa2416e19c3bb1205f795d0753c605.zip gcc-4ab7747c26fa2416e19c3bb1205f795d0753c605.tar.gz gcc-4ab7747c26fa2416e19c3bb1205f795d0753c605.tar.bz2 | |
re PR other/56245 (-fsanitize=address miscompiles GCC)
PR other/56245
* regex.c (PTR_INT_TYPE): Define.
(EXTEND_BUFFER): Change incr type from int to PTR_INT_TYPE.
From-SVN: r195918
Diffstat (limited to 'libiberty/regex.c')
| -rw-r--r-- | libiberty/regex.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/libiberty/regex.c b/libiberty/regex.c index d65eedb..17091ce 100644 --- a/libiberty/regex.c +++ b/libiberty/regex.c @@ -4,7 +4,7 @@ internationalization features.) Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, - 2002, 2005, 2010 Free Software Foundation, Inc. + 2002, 2005, 2010, 2013 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -46,9 +46,11 @@ # if defined STDC_HEADERS && !defined emacs # include <stddef.h> +# define PTR_INT_TYPE ptrdiff_t # else /* We need this for `regex.h', and perhaps for the Emacs include files. */ # include <sys/types.h> +# define PTR_INT_TYPE long # endif # define WIDE_CHAR_SUPPORT (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC) @@ -2045,7 +2047,7 @@ static reg_errcode_t byte_compile_range (unsigned int range_start, /* How many characters the new buffer can have? */ \ wchar_count = bufp->allocated / sizeof(UCHAR_T); \ if (wchar_count == 0) wchar_count = 1; \ - /* Truncate the buffer to CHAR_T align. */ \ + /* Truncate the buffer to CHAR_T align. */ \ bufp->allocated = wchar_count * sizeof(UCHAR_T); \ RETALLOC (COMPILED_BUFFER_VAR, wchar_count, UCHAR_T); \ bufp->buffer = (char*)COMPILED_BUFFER_VAR; \ @@ -2054,7 +2056,7 @@ static reg_errcode_t byte_compile_range (unsigned int range_start, /* If the buffer moved, move all the pointers into it. */ \ if (old_buffer != COMPILED_BUFFER_VAR) \ { \ - int incr = COMPILED_BUFFER_VAR - old_buffer; \ + PTR_INT_TYPE incr = COMPILED_BUFFER_VAR - old_buffer; \ MOVE_BUFFER_POINTER (b); \ MOVE_BUFFER_POINTER (begalt); \ if (fixup_alt_jump) \ @@ -2082,7 +2084,7 @@ static reg_errcode_t byte_compile_range (unsigned int range_start, /* If the buffer moved, move all the pointers into it. */ \ if (old_buffer != COMPILED_BUFFER_VAR) \ { \ - int incr = COMPILED_BUFFER_VAR - old_buffer; \ + PTR_INT_TYPE incr = COMPILED_BUFFER_VAR - old_buffer; \ MOVE_BUFFER_POINTER (b); \ MOVE_BUFFER_POINTER (begalt); \ if (fixup_alt_jump) \ |