Commit Graph

7 Commits

Author SHA1 Message Date
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
Martin Sebor
1626a1cfcd Add support for GCC 9 attribute copy.
GCC 9 has gained an enhancement to help detect attribute mismatches
between alias declarations and their targets.  It consists of a new
warning, -Wattribute-alias, an enhancement to an existing warning,
-Wmissing-attributes, and a new attribute called copy.

The purpose of the warnings is to help identify either possible bugs
(an alias declared with more restrictive attributes than its target
promises) or optimization or diagnostic opportunities (an alias target
missing some attributes that it could be declared with that might
benefit analysis and code generation).  The purpose of the new
attribute is to easily apply (almost) the same set of attributes
to one declaration as those already present on another.

As expected (and intended) the enhancement triggers warnings for
many alias declarations in Glibc code.  This change, tested on
x86_64-linux, avoids all instances of the new warnings by making
use of the attribute where appropriate.  To fully benefit from
the enhancement Glibc will need to be compiled with
 -Wattribute-alias=2 and remaining warnings reviewed and dealt with
(there are a couple of thousand but most should be straightforward
to deal with).

ChangeLog:

	* include/libc-symbols.h (__attribute_copy__): Define macro unless
	it's already defined.
	(_strong_alias): Use __attribute_copy__.
	(_weak_alias,  __hidden_ver1,  __hidden_nolink2): Same.
	* misc/sys/cdefs.h (__attribute_copy__): New macro.
	* sysdeps/x86_64/multiarch/memchr.c (memchr): Use __attribute_copy__.
	* sysdeps/x86_64/multiarch/memcmp.c (memcmp): Same.
	* sysdeps/x86_64/multiarch/mempcpy.c (mempcpy): Same.
	* sysdeps/x86_64/multiarch/memset.c (memset): Same.
	* sysdeps/x86_64/multiarch/stpcpy.c (stpcpy): Same.
	* sysdeps/x86_64/multiarch/strcat.c (strcat): Same.
	* sysdeps/x86_64/multiarch/strchr.c (strchr): Same.
	* sysdeps/x86_64/multiarch/strcmp.c (strcmp): Same.
	* sysdeps/x86_64/multiarch/strcpy.c (strcpy): Same.
	* sysdeps/x86_64/multiarch/strcspn.c (strcspn): Same.
	* sysdeps/x86_64/multiarch/strlen.c (strlen): Same.
	* sysdeps/x86_64/multiarch/strncmp.c (strncmp): Same.
	* sysdeps/x86_64/multiarch/strncpy.c (strncpy): Same.
	* sysdeps/x86_64/multiarch/strnlen.c (strnlen): Same.
	* sysdeps/x86_64/multiarch/strpbrk.c (strpbrk): Same.
	* sysdeps/x86_64/multiarch/strrchr.c (strrchr): Same.
	* sysdeps/x86_64/multiarch/strspn.c (strspn): Same.
2018-11-09 17:24:12 -07:00
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
Adhemerval Zanella
65687ac76c Remove remaining _HAVE_STRING_ARCH_* definitions (BZ #18858)
Since the removal of bits/string.h, _HAVE_STRING_ARCH_* are no
longer used.  This patch removes the unused macros from i686
and x86_64 sysdeps folder.

Checked on x86_64-linux-gnu and i686-linux-gnu.

	* sysdeps/i386/i686/multiarch/strncpy.c (_HAVE_STRING_ARCH_strncpy):
	Remove define.
	* sysdeps/x86_64/multiarch/stpcpy.c (_HAVE_STRING_ARCH_stpcpy):
	Likewise.
	* sysdeps/x86_64/multiarch/strcspn.c (_HAVE_STRING_ARCH_strcspn):
	Likewise.
	* sysdeps/x86_64/multiarch/strncat.c (_HAVE_STRING_ARCH_strncat):
	Likewise.
	* sysdeps/x86_64/multiarch/strncpy.c (_HAVE_STRING_ARCH_strncpy):
	Likewise.
	* sysdeps/x86_64/multiarch/strpbrk.c (_HAVE_STRING_ARCH_strpbrk):
	Likewise.
	* sysdeps/x86_64/multiarch/strspn.c (_HAVE_STRING_ARCH_strspn):
	Likewise.
2017-09-06 14:35:23 -03:00
H.J. Lu
70fe2eb794 x86-64: Implement strcspn/strpbrk/strspn IFUNC selectors in C
Implement strcspn/strpbrk/strspn IFUNC selectors in C

All internal calls within libc.so can use IFUNC on x86-64 since unlike
x86, x86-64 supports PC-relative addressing to access the GOT entry so
that it can call via PLT without using an extra register.  For libc.a,
we can't use IFUNC for functions which are called before IFUNC has been
initialized.  Use IFUNC internally reduces the icache footprint since
libc.so and other codes in the process use the same implementations.
This patch uses IFUNC for strcspn/strpbrk/strspn functions within libc.

	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	strcspn-sse2, strpbrk-sse2 and strspn-sse2.
	* sysdeps/x86_64/strcspn.S (STRPBRK_P): Removed.
	Check USE_AS_STRPBRK instead of STRPBRK_P.
	* sysdeps/x86_64/strpbrk.S (USE_AS_STRPBRK): New.
	* sysdeps/x86_64/multiarch/ifunc-sse4_2.h: New file.
	* sysdeps/x86_64/multiarch/strcspn-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strcspn.c: Likewise.
	* sysdeps/x86_64/multiarch/strpbrk-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strpbrk.c: Likewise.
	* sysdeps/x86_64/multiarch/strspn-sse2.S: Likewise.
	* sysdeps/x86_64/multiarch/strspn.c: Likewise.
	* sysdeps/x86_64/multiarch/strcspn.S: Removed.
	* sysdeps/x86_64/multiarch/strpbrk.S: Likewise.
	* sysdeps/x86_64/multiarch/strspn.S: Likewise.
	* sysdeps/x86_64/multiarch/strpbrk-c.c: Remove "#ifdef SHARED"
	and "#endif".
2017-06-15 08:59:05 -07:00