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18 Commits

Author SHA1 Message Date
Paul Eggert
dff8da6b3e Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Frédéric Bérat
dd8486ffc1 string: Ensure *_chk routines have their hidden builtin definition available 
If libc_hidden_builtin_{def,proto} isn't properly set for *_chk routines,
there are unwanted PLT entries in libc.so.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
 2023-07-05 16:59:48 +02:00
Frederic Berat
1bc85effd5 sysdeps/{i386, x86_64}/mempcpy_chk.S: fix linknamespace for __mempcpy_chk 
On i386 and x86_64, for libc.a specifically, __mempcpy_chk calls
mempcpy which leads POSIX routines to call non-POSIX mempcpy indirectly.

This leads the linknamespace test to fail when glibc is built with
__FORTIFY_SOURCE=3.

Since calling mempcpy doesn't bring any benefit for libc.a, directly
call __mempcpy instead.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
 2023-06-22 00:20:52 -04:00
Joseph Myers
6d7e8eda9b Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Paul Eggert
581c785bf3 Update copyright dates with scripts/update-copyrights 
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
 2022-01-01 11:40:24 -08:00
Paul Eggert
2b778ceb40 Update copyright dates with scripts/update-copyrights 
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
 2021-01-02 12:17:34 -08:00
Joseph Myers
d614a75396 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Paul Eggert
5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
 2019-09-07 02:43:31 -07:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2019-01-01 00:11:28 +00:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
Mike Frysinger
fbe355fbd1 x86_64: fix static build of __mempcpy_chk for compilers defaulting to PIC/PIE 
When glibc is compiled with gcc 6.2 that has been configured with
to default to PIC/PIE, the static version of __mempcpy_chk is not built,
as the test is done on PIC instead of SHARED.  Fix the test to check for
SHARED, like it is done for similar functions like __memcpy_chk.

2017-03-12  Mike Frysinger  <vapier@gentoo.org>

	* sysdeps/x86_64/mempcpy_chk.S (__mempcpy_chk): Check for SHARED
	instead of PIC.
 2017-03-15 16:10:05 -07:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
b5cc329c4f 2004-10-15 Jakub Jelinek <jakub@redhat.com> 
* elf/dl-minimal.c (__chk_fail): New.  Add rtld_hidden_def.
	* sysdeps/unix/sysv/linux/readonly-area.c: New file.
	* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
	routine.
	* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
	* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
	* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
	* sysdeps/i386/i686/memmove-chk.S: New file.
	* sysdeps/i386/i686/memcpy-chk.S: Likewise.
	* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
	* sysdeps/i386/i686/memset-chk.S: Likewise.
	* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
	if exactly fitting into buffer.
	* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
	* sysdeps/generic/readonly-area.c: New file.
	* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
	destlen once.
	* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
	* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
	* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
	* sysdeps/x86_64/memcpy-chk.S: New file.
	* sysdeps/x86_64/mempcpy-chk.S: Likewise.
	* sysdeps/x86_64/memset-chk.S: Likewise.
	* sysdeps/x86_64/strcpy-chk.S: Likewise.
	* sysdeps/x86_64/stpcpy-chk.S: Likewise.
	* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
	* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
	* debug/tst-chk1.c: New test.
	* debug/tst-chk2.c: Likewise.
	* debug/tst-chk3.c: Likewise.
	* debug/test-strcpy_chk.c: Likewise.
	* debug/test-stpcpy_chk.c: Likewise.
	* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
	_IO_FLAGS2_CHECK_PERCENT_N.  Add libc_hidden_def.
	* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
	vfprintf_chk, gets_chk and readonly-area.
	(CFLAGS-*_chk.c): Set.
	(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
	test-stpcpy_chk.
	* debug/vprintf_chk.c: New file.
	* debug/printf_chk.c: Likewise.
	* debug/vfprintf_chk.c: Likewise.
	* debug/fprintf_chk.c: Likewise.
	* debug/gets_chk.c: Likewise.
	* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
	* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
	passed to __vsnprintf_chk.
	* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
	__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
	* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
	__vsnprintf, instead create a temporary file with
	_IO_strn_jumps jumptable.  If flags > 0, request
	_IO_FLAGS2_CHECK_PERCENT_N.  Add libc_hidden_def.
	* libio/Makefile (headers): Add bits/stdio2.h.
	* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
	(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
	* libio/strfile.h (_IO_strnfile): New type.
	(_IO_strn_jumps): New extern.
	* libio/vsnprintf.c (_IO_strnfile): Remove.
	(_IO_strn_jumps): Remove static.
	* libio/bits/stdio2.h: New file.
	* libio/vswprintf.c (_IO_strnfile): Rename type to...
	(_IO_wstrnfile): ...this.  Adjust all uses.
	* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
	* stdio-common/vfprintf.c (STR_LEN): Define.
	(vfprintf): Add readonly_format variable.
	Handle _IO_FLAGS2_CHECK_PERCENT_N.
	(buffered_vfprintf): Copy _flags2.
	* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
	__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
	__vfprintf_chk): New prototypes.
	(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
	* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
	__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
	__strncat_chk): New prototypes.
	* include/bits/string3.h: New file.
	* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
	and rtld_hidden_proto.
	* string/Makefile (headers): Add bits/string3.h.
	* string/bits/string3.h (bcopy, bzero): New defines.
	(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
	macros so that inlines are used only if unknown destination size
	or side-effects in destination argument.
	(mempcpy, stpcpy): Likewise.  Protect with #ifdef __USE_GNU.

2004-09-16  Ulrich Drepper  <drepper@redhat.com>

	* debug/Makefile (routines): Add *_chk.
	* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
	__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
	__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
	__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
	@GLIBC_2.3.4.
	* debug/chk_fail.c: New file.
	* debug/snprintf_chk.c: Likewise.
	* debug/sprintf_chk.c: Likewise.
	* debug/vsnprintf_chk.c: Likewise.
	* debug/vsprintf_chk.c: Likewise.
	* include/features.h (_FORTIFY_SOURCE): Document, handle.
	(__USE_FORTIFY_LEVEL): Define.
	(__GNUC_PREREQ): Move to earlier location.
	* include/sys/cdefs.h (__chk_fail): New prototype.
	* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
	Define if __USE_FORTIFY_LEVEL.
	* misc/sys/cdefs.h (__bos, __bos0): Define.
	* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
	* bits/string/string3.h: New header.
	* sysdeps/generic/memcpy_chk.c: New file.
	* sysdeps/generic/memmove_chk.c: Likewise.
	* sysdeps/generic/mempcpy_chk.c: Likewise.
	* sysdeps/generic/memset_chk.c: Likewise.
	* sysdeps/generic/stpcpy_chk.c: Likewise.
	* sysdeps/generic/strcat_chk.c: Likewise.
	* sysdeps/generic/strcpy_chk.c: Likewise.
	* sysdeps/generic/strncat_chk.c: Likewise.
	* sysdeps/generic/strncpy_chk.c: Likewise.
2004-10-15  Jakub Jelinek  <jakub@redhat.com>

	* elf/dl-minimal.c (__chk_fail): New.  Add rtld_hidden_def.
	* sysdeps/unix/sysv/linux/readonly-area.c: New file.
	* sysdeps/i386/i686/memmove.S (__memmove_chk): Add checking
	routine.
	* sysdeps/i386/i686/memcpy.S (__memcpy_chk): Likewise.
	* sysdeps/i386/i686/mempcpy.S (__mempcpy_chk): Likewise.
	* sysdeps/i386/i686/memset.S (__memset_chk): Likewise.
	* sysdeps/i386/i686/memmove-chk.S: New file.
	* sysdeps/i386/i686/memcpy-chk.S: Likewise.
	* sysdeps/i386/i686/mempcpy-chk.S: Likewise.
	* sysdeps/i386/i686/memset-chk.S: Likewise.
	* sysdeps/generic/strcat-chk.c (__strcat_chk): Don't __chk_fail
	if exactly fitting into buffer.
	* sysdeps/generic/strncat-chk.c (__strncat_chk): Likewise.
	* sysdeps/generic/readonly-area.c: New file.
	* sysdeps/generic/strncpy-chk.c (__strncpy_chk): Only test
	destlen once.
	* sysdeps/x86_64/memset.S (__memset_chk): Add checking routine.
	* sysdeps/x86_64/memcpy.S (__memcpy_chk): Likewise.
	* sysdeps/x86_64/mempcpy.S (__memcpy_chk): Define to __mempcpy_chk.
	* sysdeps/x86_64/memcpy-chk.S: New file.
	* sysdeps/x86_64/mempcpy-chk.S: Likewise.
	* sysdeps/x86_64/memset-chk.S: Likewise.
	* sysdeps/x86_64/strcpy-chk.S: Likewise.
	* sysdeps/x86_64/stpcpy-chk.S: Likewise.
	* argp/argp-xinl.c (__OPTIMIZE__): Define to 1 instead of nothing.
	* argp/argp-fs-xinl.c (__OPTIMIZE__): Likewise.
	* debug/tst-chk1.c: New test.
	* debug/tst-chk2.c: Likewise.
	* debug/tst-chk3.c: Likewise.
	* debug/test-strcpy_chk.c: Likewise.
	* debug/test-stpcpy_chk.c: Likewise.
	* debug/vsprintf_chk.c (__vsprintf_chk): If flags > 0, request
	_IO_FLAGS2_CHECK_PERCENT_N.  Add libc_hidden_def.
	* debug/Makefile (routines): Add printf_chk, fprintf_chk, vprintf_chk,
	vfprintf_chk, gets_chk and readonly-area.
	(CFLAGS-*_chk.c): Set.
	(tests): Add tst-chk1, tst-chk2, tst-chk3, test-strcpy_chk and
	test-stpcpy_chk.
	* debug/vprintf_chk.c: New file.
	* debug/printf_chk.c: Likewise.
	* debug/vfprintf_chk.c: Likewise.
	* debug/fprintf_chk.c: Likewise.
	* debug/gets_chk.c: Likewise.
	* debug/chk_fail.c (__chk_fail): Add libc_hidden_def.
	* debug/snprintf_chk.c (__snprintf_chk): Fix order of arguments
	passed to __vsnprintf_chk.
	* debug/Versions (libc): Export __printf_chk, __fprintf_chk,
	__vprintf_chk, __vfprintf_chk and __gets_chk @GLIBC_2.3.4.
	* debug/vsnprintf_chk.c (__vsnprintf_chk): Don't call
	__vsnprintf, instead create a temporary file with
	_IO_strn_jumps jumptable.  If flags > 0, request
	_IO_FLAGS2_CHECK_PERCENT_N.  Add libc_hidden_def.
	* libio/Makefile (headers): Add bits/stdio2.h.
	* libio/stdio.h: Include <bits/stdio2.h> if __USE_FORTIFY_LEVEL.
	(sprintf, snprintf, vsprintf, vsnprintf): Remove defines.
	* libio/strfile.h (_IO_strnfile): New type.
	(_IO_strn_jumps): New extern.
	* libio/vsnprintf.c (_IO_strnfile): Remove.
	(_IO_strn_jumps): Remove static.
	* libio/bits/stdio2.h: New file.
	* libio/vswprintf.c (_IO_strnfile): Rename type to...
	(_IO_wstrnfile): ...this.  Adjust all uses.
	* libio/libio.h (_IO_FLAGS2_CHECK_PERCENT_N): Define.
	* stdio-common/vfprintf.c (STR_LEN): Define.
	(vfprintf): Add readonly_format variable.
	Handle _IO_FLAGS2_CHECK_PERCENT_N.
	(buffered_vfprintf): Copy _flags2.
	* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
	__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
	__vfprintf_chk): New prototypes.
	(__vsprintf_chk, __vsnprintf_chk): Add libc_hidden_proto.
	* include/string.h (__memcpy_chk, __memmove_chk, __mempcpy_chk,
	__memset_chk, __strcpy_chk, __stpcpy_chk, __strncpy_chk, __strcat_chk,
	__strncat_chk): New prototypes.
	* include/bits/string3.h: New file.
	* include/sys/cdefs.h (__chk_fail): Add libc_hidden_proto
	and rtld_hidden_proto.
	* string/Makefile (headers): Add bits/string3.h.
	* string/bits/string3.h (bcopy, bzero): New defines.
	(memset, memcpy, memmove, strcpy, strncpy, strcat, strncat): Change
	macros so that inlines are used only if unknown destination size
	or side-effects in destination argument.
	(mempcpy, stpcpy): Likewise.  Protect with #ifdef __USE_GNU.

2004-09-16  Ulrich Drepper  <drepper@redhat.com>

	* debug/Makefile (routines): Add *_chk.
	* debug/Versions (libc): Export __chk_fail, __memcpy_chk,
	__memmove_chk, __mempcpy_chk, __memset_chk, __stpcpy_chk,
	__strcat_chk, __strcpy_chk, __strncat_chk, __strncpy_chk,
	__sprintf_chk, __vsprintf_chk, __snprintf_chk, __vsnprintf_chk
	@GLIBC_2.3.4.
	* debug/chk_fail.c: New file.
	* debug/snprintf_chk.c: Likewise.
	* debug/sprintf_chk.c: Likewise.
	* debug/vsnprintf_chk.c: Likewise.
	* debug/vsprintf_chk.c: Likewise.
	* include/features.h (_FORTIFY_SOURCE): Document, handle.
	(__USE_FORTIFY_LEVEL): Define.
	(__GNUC_PREREQ): Move to earlier location.
	* include/sys/cdefs.h (__chk_fail): New prototype.
	* libio/bits/stdio.h (sprintf, vsprintf, snprintf, vsnprintf):
	Define if __USE_FORTIFY_LEVEL.
	* misc/sys/cdefs.h (__bos, __bos0): Define.
	* string/string.h: Include <bits/string3.h> if __USE_FORTIFY_LEVEL.
	* bits/string/string3.h: New header.
	* sysdeps/generic/memcpy_chk.c: New file.
	* sysdeps/generic/memmove_chk.c: Likewise.
	* sysdeps/generic/mempcpy_chk.c: Likewise.
	* sysdeps/generic/memset_chk.c: Likewise.
	* sysdeps/generic/stpcpy_chk.c: Likewise.
	* sysdeps/generic/strcat_chk.c: Likewise.
	* sysdeps/generic/strcpy_chk.c: Likewise.
	* sysdeps/generic/strncat_chk.c: Likewise.
	* sysdeps/generic/strncpy_chk.c: Likewise.
 2004-10-18 04:17:19 +00:00