diff options
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | string/Makefile | 2 | ||||
| -rw-r--r-- | string/tst-strtok_r.c | 38 | ||||
| -rw-r--r-- | sysdeps/x86_64/strtok.S | 17 |
4 files changed, 55 insertions, 10 deletions
@@ -1,3 +1,11 @@ +2012-06-14 H.J. Lu <hongjiu.lu@intel.com> + + [BZ #14229] + * string/Makefile (tests): Add tst-strtok_r. + * string/tst-strtok_r.c: New file. + * sysdeps/x86_64/strtok.S: Use LP_SIZE on save_ptr and use + RAX_LP/RDX_LP on SAVE_PTR. + 2012-06-14 Roland McGrath <roland@hack.frob.com> * manual/Makefile ($(objpfx)texis): Do $(make-target-directory). diff --git a/string/Makefile b/string/Makefile index 80923a25d2..1628b6adfc 100644 --- a/string/Makefile +++ b/string/Makefile @@ -56,7 +56,7 @@ tests := tester inl-tester noinl-tester testcopy test-ffs \ tst-strtok tst-strxfrm bug-strcoll1 tst-strfry \ bug-strtok1 $(addprefix test-,$(strop-tests)) \ bug-envz1 tst-strxfrm2 tst-endian tst-svc2 \ - bug-strstr1 bug-strchr1 + bug-strstr1 bug-strchr1 tst-strtok_r include ../Rules diff --git a/string/tst-strtok_r.c b/string/tst-strtok_r.c new file mode 100644 index 0000000000..5f1cee37f0 --- /dev/null +++ b/string/tst-strtok_r.c @@ -0,0 +1,38 @@ +/* Test strtok_r regression for BZ #14229. + Copyright (C) 2012 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#define TEST_MAIN +#define BUF1PAGES 1 +#include "test-string.h" + +int +test_main (void) +{ + char line[] = "udf 75868 1 - Live 0xffffffffa0bfb000\n"; + char **saveptrp; + char *tok; + + test_init (); + + /* Check strtok_r won't write beyond the size of (*saveptrp). */ + saveptrp = (char **) (buf1 + page_size - sizeof (*saveptrp)); + tok = strtok_r (line, " \t", saveptrp); + return strcmp (tok, "udf") != 0; +} + +#include "../test-skeleton.c" diff --git a/sysdeps/x86_64/strtok.S b/sysdeps/x86_64/strtok.S index 150f4d642a..fe4a9475b3 100644 --- a/sysdeps/x86_64/strtok.S +++ b/sysdeps/x86_64/strtok.S @@ -1,6 +1,6 @@ /* strtok (str, delim) -- Return next DELIM separated token from STR. For AMD x86-64. - Copyright (C) 1998,2000-2003,2005,2006 Free Software Foundation, Inc. + Copyright (C) 1998-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. Based on i686 version contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. @@ -45,9 +45,9 @@ .bss .local save_ptr ASM_TYPE_DIRECTIVE (save_ptr, @object) - .size save_ptr, 8 + .size save_ptr, LP_SIZE save_ptr: - .space 8 + .space LP_SIZE # ifdef PIC # define SAVE_PTR save_ptr(%rip) @@ -79,13 +79,12 @@ ENTRY (BP_SYM (FUNCTION)) #ifdef USE_AS_STRTOK_R /* The value is stored in the third argument. */ - movq %rdx, %rax - movq %rdx, %r9 /* Save value - see def. of SAVE_PTR. */ - movq (%rax), %rax + mov %RDX_LP, %R9_LP /* Save value - see def. of SAVE_PTR. */ + mov (%rdx), %RAX_LP #else /* The value is in the local variable defined above. But we have to take care for PIC code. */ - movq SAVE_PTR, %rax + mov SAVE_PTR, %RAX_LP #endif movq %r8, %rdx /* Get start of string. */ @@ -194,7 +193,7 @@ L(8): cmpq %rax, %rdx cmovne %rcx, %rdx /* Store the pointer to the next character. */ - movq %rdx, SAVE_PTR + mov %RDX_LP, SAVE_PTR L(epilogue): /* Remove the stopset table. */ @@ -205,7 +204,7 @@ L(epilogue): L(returnNULL): xorl %eax, %eax /* Store the pointer to the next character. */ - movq %rdx, SAVE_PTR + mov %RDX_LP, SAVE_PTR jmp L(epilogue) END (BP_SYM (FUNCTION)) |