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40 Commits

Author SHA1 Message Date
Adhemerval Zanella
ac4e838289 powerpc: Remove POWER7 strncasecmp optimization 
These routines are not extensively used (gnulib documentation even
recommend use a replacement [1]), and there is already a POWER8
version that uses proper vectorized instructions.

[1] https://www.gnu.org/software/gnulib/manual/gnulib.html#C-strings

Checked with a build for some powerpc variations.
Reviewed-by: Peter Bergner <bergner@linux.ibm.com>
 2025-05-06 13:31:01 -03:00
Paul Eggert
2642002380 Update copyright dates with scripts/update-copyrights 2025-01-01 11:22:09 -08:00
Paul Eggert
dff8da6b3e Update copyright dates with scripts/update-copyrights 2024-01-01 10:53:40 -08:00
Mahesh Bodapati
21841f0d56 PowerPC: Influence cpu/arch hwcap features via GLIBC_TUNABLES 
This patch enables the option to influence hwcaps used by PowerPC.
The environment variable, GLIBC_TUNABLES=glibc.cpu.hwcaps=-xxx,yyy,-zzz....,
can be used to enable CPU/ARCH feature yyy, disable CPU/ARCH feature xxx
and zzz, where the feature name is case-sensitive and has to match the ones
mentioned in the file{sysdeps/powerpc/dl-procinfo.c}.

Note that the hwcap tunables only used in the IFUNC selection.
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 2023-08-01 07:41:17 -05:00
Adhemerval Zanella Netto
a46bb1523d powerpc: Remove strncmp variants 
The default, power4, and power7 implementation just adds word aligned
access when inputs have the same aligment.  The unaligned case
is still done by byte operations.

This is already covered by the generic implementation, which also add
the unaligned input optimization.

Checked on powerpc-linux-gnu built without multi-arch for powerpc,
power4, and power7.
Reviewed-by: Rajalakshmi Srinivasaraghavan <rajis@linux.ibm.com>
 2023-03-02 16:41:43 -03:00
Joseph Myers
6d7e8eda9b Update copyright dates with scripts/update-copyrights 2023-01-06 21:14:39 +00:00
Wilco Dijkstra
fdaf78656f Add bounds check to __libc_ifunc_impl_list 
Add a proper bounds check to __libc_ifunc_impl_list. This makes MAX_IFUNC
redundant and fixes several targets that will write outside the array.
To avoid unnecessary large diffs, pass the maximum in the argument 'i' to
IFUNC_IMPL_ADD - 'max' can be used in new ifunc definitions and existing
ones can be updated if desired.

Passes buildmanyglibc.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 2022-06-10 17:13:29 +01:00
Adhemerval Zanella
68122d8a04 powerpc: Remove powerpc32 bzero optimizations 
The symbol is not present in current POSIX specification and compiler
already generates memset call.
 2022-02-23 14:18:18 -03:00
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
Adhemerval Zanella
f82ed45d7f powerpc: Use generic wcsrchr optimization 
This patch removes the power6 wcsrchr optimization and uses generic
implementation instead.  Currently, both power6 and power7 IFUNC variant
resulting binary are essentially the same and the generic implementation
with unrolling loop set to 8 also results in similar performance.

Checked on powerpc64-linux-gnu.

	* sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcsrchr.c):
	New rule.
	* sysdeps/powerpc/power6/wcsrchr.c: Remove file.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c: Likewise.
	* sysdeps/powerpc/powerpc64/power6/wcsrchr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
	[$(subdir) == wcsmbs] (sysdeps_routines): Remove wcsrchr-power6 and
	wcsrchr-power7.
	(CFLAGS-wcsrchr-power7.c, CFLAGS-wcsrchr-power6.c): Remove rule.
	* sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c:
	Remove wcsrchr optimizations.
	* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
 2019-04-04 16:01:14 +07:00
Adhemerval Zanella
421e3005ca powerpc: Use generic wcschr optimization 
This patch removes the power6 wcschr optimization and uses generic
implementation instead.  Currently, both power6 and power7 IFUNC variant
resulting binary are essentially the same and the generic implementation
with unrolling loop set to 8 also results in similar performance.

Checked on powerpc64-linux-gnu.

	* sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcschr.c):
	New rule.
	* sysdeps/powerpc/power6/wcschr.c: Remove file.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-power6.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-power7.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-ppc32.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcschr-power6.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcschr-power7.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcschr-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcschr.c: Likewise.
	* sysdeps/powerpc/powerpc64/power6/wcschr.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
	[$(subdir) == wcsmbs] (sysdeps_routines): Remove wcschr-power6 and
	wcschr-power7.
	(CFLAGS-wcschr-power7.c, CFLAGS-wcschr-power6.c): Remove rule.
	* sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c:
	Remove wcschr optimizations.
	* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
 2019-04-04 16:01:14 +07:00
Adhemerval Zanella
447a1306c3 powerpc: Use generic wcscpy optimization 
This patch removes the power6 wcscpy optimization and uses generic
implementation instead.  Currently, both power6 and power7 IFUNC variant
resulting binary are essentially the same and the generic implementation
with unrolling loop set to 8 also results in similar performance.

Checked on powerpc64-linux-gnu.

	* sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcscpy.c):
	New rule.
	* sysdeps/powerpc/power6/wcscpy.c: Remove file.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power6.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power7.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-ppc32.c:
	Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcscpy-power6.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcscpy-power7.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcscpy-ppc64.c: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/wcscpy.c: Likewise.
	* sysdeps/powerpc/powerpc64/power6/wcscpy.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/Makefile
	[$(subdir) == wcsmbs] (sysdeps_routines): Remove wcscpy-power6 and
	wcscpy-power7.
	(CFLAGS-wcscpy-power7.c, CFLAGS-wcscpy-power6.c): Remove rule.
	* sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise.
	* sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c:
	Remove wcscpy optimizations.
	* sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
 2019-04-04 16:01:14 +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
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
Adhemerval Zanella
91f4b564bd PowerPC: Add ifunc tests for memmove 
This patch add the missing ifunc tests definition for memmove ppc32
optimization patch (commit 07aedd7).
 2014-07-08 09:16:09 -05:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Adhemerval Zanella
93be09e725 PowerPC: multiarch wcscpy for PowerPC32 2013-12-06 05:47:02 -06:00
Adhemerval Zanella
bb04e529f6 PowerPC: multiarch wcsrchr for PowerPC32 2013-12-06 05:47:02 -06:00
Adhemerval Zanella
05b5cd1ce5 PowerPC: multiarch wcschr for PowerPC32 2013-12-06 05:47:02 -06:00
Adhemerval Zanella
ba9641477e PowerPC: multiarch strchr for PowerPC32 2013-12-06 05:47:01 -06:00
Adhemerval Zanella
31c81aaa01 PowerPC: multiarch strchrnul for PowerPC32 2013-12-06 05:47:01 -06:00
Adhemerval Zanella
0d0607d9ab PowerPC: multiarch strncasecmp for PowerPC32 2013-12-06 05:47:01 -06:00
Adhemerval Zanella
4dfd5c8647 PowerPC: multiarch strcasecmp for PowerPC32 2013-12-06 05:47:01 -06:00
Adhemerval Zanella
a19e01a355 PowerPC: multiarch strncmp for PowerPC32 2013-12-06 05:47:01 -06:00
Adhemerval Zanella
ae9cf7a2e8 PowerPC: multiarch strnlen for PowerPC32 2013-12-06 05:47:00 -06:00
Adhemerval Zanella
3148bb7d2c PowerPC: multiarch strlen for PowerPC32 2013-12-06 05:47:00 -06:00
Adhemerval Zanella
7af8b94625 PowerPC: multiarch rawmemchr for PowerPC32 2013-12-06 05:47:00 -06:00
Adhemerval Zanella
03a6aa6a63 PowerPC: multiarch memrchr for PowerPC32 2013-12-06 05:47:00 -06:00
Adhemerval Zanella
1c62e6d960 PowerPC: multiarch memchr for PowerPC32 2013-12-06 05:47:00 -06:00
Adhemerval Zanella
87da8bdbe1 PowerPC: multiarch mempcpy for PowerPC32 2013-12-06 05:46:59 -06:00
Adhemerval Zanella
20ed471427 PowerPC: multiarch memset/bzero for PowerPC32 2013-12-06 05:46:59 -06:00
Adhemerval Zanella
ab3e3a46d5 PowerPC: multiarch memcmp for PowerPC32 2013-12-06 05:46:59 -06:00
Adhemerval Zanella
930de6f09e PowerPC: multiarch memcpy for PowerPC32 2013-12-06 05:46:59 -06:00
Adhemerval Zanella
4c628e0026 PowerPC: initial support for multilib for PowerPC32 
This patch add a empty Makefile, the C IFUNC helper macros, and a empty
available IFUNC implementation enumeration.
 2013-12-06 05:46:59 -06:00