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add filelist and backport many patch

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This commit is contained in:
wangshuo 2020-07-02 20:33:14 +08:00
parent d4a140875a
commit b9801063d3
9 changed files with 864 additions and 129 deletions
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62
Do-not-use-gettimeofday-in-random-id.patch Normal file
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@ -0,0 +1,62 @@
From 359653aaacad463d916323f03c0ac3c47405aafa Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed, 16 Jan 2019 18:10:56 +0000
Subject: [PATCH] Do not use HP_TIMING_NOW for random bits
This patch removes the HP_TIMING_BITS usage for fast random bits and replace
with clock_gettime (CLOCK_MONOTONIC). It has unspecified starting time and
nano-second accuracy, so its randomness is significantly better than
gettimeofday.
Althoug it should incur in more overhead (specially for architecture that
support hp-timing), the symbol is also common implemented as a vDSO.
Checked on aarch64-linux-gnu, x86_64-linux-gnu, and i686-linux-gnu. I also
checked on a i686-gnu build.
* include/random-bits.h: New file.
* resolv/res_mkquery.c [HP_TIMING_AVAIL] (RANDOM_BITS,
(__res_context_mkquery): Remove usage hp-timing usage and replace with
random_bits.
* resolv/res_send.c [HP_TIMING_AVAIL] (nameserver_offset): Likewise.
* sysdeps/posix/tempname.c [HP_TIMING_AVAIL] (__gen_tempname):
Likewise.
note that this patch is just parts of the origin one to adapt glibc-2.28 
---
resolv/res_mkquery.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/resolv/res_mkquery.c b/resolv/res_mkquery.c
index 213abeef..7ba40640 100644
--- a/resolv/res_mkquery.c
+++ b/resolv/res_mkquery.c
@@ -95,6 +95,7 @@
#include <hp-timing.h>
#include <stdint.h>
+#include <time.h>
#if HP_TIMING_AVAIL
# define RANDOM_BITS(Var) { uint64_t v64; HP_TIMING_NOW (v64); Var = v64; }
#endif
@@ -124,9 +125,12 @@ __res_context_mkquery (struct resolv_context *ctx, int op, const char *dname,
#ifdef RANDOM_BITS
RANDOM_BITS (randombits);
#else
- struct timeval tv;
- __gettimeofday (&tv, NULL);
- randombits = (tv.tv_sec << 8) ^ tv.tv_usec;
+ struct timespec tv;
+ clock_gettime (CLOCK_MONOTONIC, &tv);
+ /* Shuffle the lower bits to minimize the clock bias. */
+ uint32_t ret = tv.tv_nsec ^ tv.tv_sec;
+ ret ^= (ret << 24) | (ret >> 8);
+ randombits = ret;
#endif
hp->id = randombits;
--
2.19.1

52
Fix-avx2-strncmp-offset-compare-condition-check-BZ-2.patch Normal file
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@ -0,0 +1,52 @@
From 75870237ff3bb363447b03f4b0af100227570910 Mon Sep 17 00:00:00 2001
From: Sunil K Pandey <skpgkp1@gmail.com>
Date: Fri, 12 Jun 2020 08:57:16 -0700
Subject: [PATCH] Fix avx2 strncmp offset compare condition check [BZ #25933]
strcmp-avx2.S: In avx2 strncmp function, strings are compared in
chunks of 4 vector size(i.e. 32x4=128 byte for avx2). After first 4
vector size comparison, code must check whether it already passed
the given offset. This patch implement avx2 offset check condition
for strncmp function, if both string compare same for first 4 vector
size.
---
sysdeps/x86_64/multiarch/strcmp-avx2.S | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/sysdeps/x86_64/multiarch/strcmp-avx2.S b/sysdeps/x86_64/multiarch/strcmp-avx2.S
index 5f88a68262..d42b04b54f 100644
--- a/sysdeps/x86_64/multiarch/strcmp-avx2.S
+++ b/sysdeps/x86_64/multiarch/strcmp-avx2.S
@@ -591,7 +591,14 @@ L(loop_cross_page_2_vec):
movl $(PAGE_SIZE / (VEC_SIZE * 4) - 1), %esi
testq %rdi, %rdi
+# ifdef USE_AS_STRNCMP
+ /* At this point, if %rdi value is 0, it already tested
+ VEC_SIZE*4+%r10 byte starting from %rax. This label
+ checks whether strncmp maximum offset reached or not. */
+ je L(string_nbyte_offset_check)
+# else
je L(back_to_loop)
+# endif
tzcntq %rdi, %rcx
addq %r10, %rcx
/* Adjust for number of bytes skipped. */
@@ -627,6 +634,14 @@ L(loop_cross_page_2_vec):
VZEROUPPER
ret
+# ifdef USE_AS_STRNCMP
+L(string_nbyte_offset_check):
+ leaq (VEC_SIZE * 4)(%r10), %r10
+ cmpq %r10, %r11
+ jbe L(zero)
+ jmp L(back_to_loop)
+# endif
+
.p2align 4
L(cross_page_loop):
/* Check one byte/dword at a time. */
--
2.19.1

251
Reset-converter-state-after-second-wchar_t-output-Bu.patch Normal file
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@ -0,0 +1,251 @@
From c580e6466d6da8262820cdbad19f32c5546226cf Mon Sep 17 00:00:00 2001
From: Carlos O'Donell <carlos@redhat.com>
Date: Fri, 27 Mar 2020 17:03:36 -0400
Subject: [PATCH] Reset converter state after second wchar_t output (Bug 25734)
An input BIG5-HKSCS character may be converted into at most 2 wchar_t
characters. After outputting the second whcar_t character (which was
saved in the converter state) we must reset the state. If we fail
to reset the state we will be stuck continually copying that
character to the output even if we have further input to consider.
We add a new test case that covers the 4 BIG5-HKSCS characters
that may become 2 wchar_t characters.
Reviewed-by: Tom Honermann <tom@honermann.net>
---
iconvdata/Makefile | 17 ++-
iconvdata/big5hkscs.c | 3 +
iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c | 160 ++++++++++++++++++++++
3 files changed, 176 insertions(+), 4 deletions(-)
create mode 100644 iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c
diff --git a/iconvdata/Makefile b/iconvdata/Makefile
index c83962f351b..4ec2741cdce 100644
--- a/iconvdata/Makefile
+++ b/iconvdata/Makefile
@@ -73,7 +73,7 @@ modules.so := $(addsuffix .so, $(modules))
ifeq (yes,$(build-shared))
tests = bug-iconv1 bug-iconv2 tst-loading tst-e2big tst-iconv4 bug-iconv4 \
tst-iconv6 bug-iconv5 bug-iconv6 tst-iconv7 bug-iconv8 bug-iconv9 \
- bug-iconv10 bug-iconv11 bug-iconv12
+ bug-iconv10 bug-iconv11 bug-iconv12 tst-iconv-big5-hkscs-to-2ucs4
ifeq ($(have-thread-library),yes)
tests += bug-iconv3
endif
@@ -275,16 +275,21 @@ endif
endif
endif
-include ../Rules
-
ifeq ($(run-built-tests),yes)
-LOCALES := de_DE.UTF-8
+LOCALES := \
+ de_DE.UTF-8 \
+ zh_HK.BIG5-HKSCS \
+ $(NULL)
+
include ../gen-locales.mk
$(objpfx)bug-iconv6.out: $(gen-locales)
$(objpfx)tst-iconv7.out: $(gen-locales)
+$(objpfx)tst-iconv-big5-hkscs-to-2ucs4.out: $(gen-locales)
endif
+include ../Rules
+
# Set libof-* for each routine.
cpp-srcs-left := $(modules) $(generated-modules) $(libJIS-routines) \
$(libKSC-routines) $(libGB-routines) $(libCNS-routines) \
@@ -340,3 +345,7 @@ tst-tables-clean:
$(objpfx)gconv-modules: gconv-modules
cat $(sysdeps-gconv-modules) $^ > $@
+
+# Test requires BIG5HKSCS.
+$(objpfx)tst-iconv-big5-hkscs-to-2ucs4.out: $(objpfx)gconv-modules \
+ $(addprefix $(objpfx),$(modules.so))
diff --git a/iconvdata/big5hkscs.c b/iconvdata/big5hkscs.c
index 01fcfeba76b..ef325119b18 100644
--- a/iconvdata/big5hkscs.c
+++ b/iconvdata/big5hkscs.c
@@ -17895,6 +17895,9 @@ static struct
else \
++inptr; \
} \
+ else \
+ /* Clear the queue and proceed to output the saved character. */ \
+ *statep = 0; \
\
put32 (outptr, ch); \
outptr += 4; \
diff --git a/iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c b/iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c
new file mode 100644
index 00000000000..8389adebf27
--- /dev/null
+++ b/iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c
@@ -0,0 +1,160 @@
+/* Verify the BIG5HKSCS outputs that generate 2 wchar_t's (Bug 25734).
+ Copyright (C) 2020 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
+ <https://www.gnu.org/licenses/>. */
+
+#include <stdio.h>
+#include <string.h>
+#include <locale.h>
+#include <wchar.h>
+#include <support/check.h>
+#include <support/support.h>
+
+/* A few BIG5-HKSCS characters map in two unicode code points.
+ They are:
+ /x88/x62 => <U00CA><U0304>
+ /x88/x64 => <U00CA><U030C>
+ /x88/xa3 => <U00EA><U0304>
+ /x88/xa5 => <U00EA><U030C>
+ Each of these is special cased in iconvdata/big5hkscs.c.
+ This test ensures that we correctly reset the shift state after
+ outputting any of these characters. We do this by converting
+ each them followed by converting an ASCII character. If we fail
+ to reset the shift state (bug 25734) then we'll see the last
+ character in the queue output again. */
+
+/* Each test has name, input bytes, and expected wide character
+ output. */
+struct testdata {
+ const char *name;
+ const char input[3];
+ wchar_t expected[3];
+};
+
+/* In BIG5-HKSCS (2008) there are 4 characters that generate multiple
+ wide characters. */
+struct testdata tests[4] = {
+ /* <H-8862>X => <U+00CA><U+0304>X */
+ { "<H-8862>", "\x88\x62\x58", { 0x00CA, 0x0304, 0x0058 } },
+ /* <H-8864>X => <U+00CA><U+030C>X */
+ { "<H-8864>", "\x88\x64\x58", { 0x00CA, 0x030C, 0x0058 } },
+ /* <H-88A3>X => <U+00EA><U+0304>X */
+ { "<H-88A3>", "\x88\xa3\x58", { 0x00EA, 0x0304, 0x0058 } },
+ /* <H-88A5>X => <U+00EA><U+030C>X */
+ { "<H-88A5>", "\x88\xa5\x58", { 0x00EA, 0x030C, 0x0058 } }
+};
+
+/* Each test is of the form:
+ - Translate first code sequence (two bytes)
+ - Translate second (zero bytes)
+ - Translate the third (one byte). */
+static int
+check_conversion (struct testdata test)
+{
+ int err = 0;
+ wchar_t wc;
+ mbstate_t st;
+ size_t ret;
+ const char *mbs = test.input;
+ int consumed = 0;
+ /* Input is always 3 bytes long. */
+ int inlen = 3;
+
+ memset (&st, 0, sizeof (st));
+ /* First conversion: Consumes first 2 bytes. */
+ ret = mbrtowc (&wc, mbs, inlen - consumed, &st);
+ if (ret != 2)
+ {
+ printf ("error: First conversion consumed only %zd bytes.\n", ret);
+ err++;
+ }
+ /* Advance the two consumed bytes. */
+ mbs += ret;
+ consumed += ret;
+ if (wc != test.expected[0])
+ {
+ printf ("error: Result of first conversion was wrong.\n");
+ err++;
+ }
+ /* Second conversion: Consumes 0 bytes. */
+ ret = mbrtowc (&wc, mbs, inlen - consumed, &st);
+ if (ret != 0)
+ {
+ printf ("error: Second conversion consumed only %zd bytes.\n", ret);
+ err++;
+ }
+ /* Advance the zero consumed bytes. */
+ mbs += ret;
+ consumed += ret;
+ if (wc != test.expected[1])
+ {
+ printf ("error: Result of second conversion was wrong.\n");
+ err++;
+ }
+ /* After the second conversion the state of the converter should be
+ in the initial state. It is in the initial state because the two
+ input BIG5-HKSCS bytes have been consumed and the 2 wchar_t's have
+ been output. */
+ if (mbsinit (&st) == 0)
+ {
+ printf ("error: Converter not in initial state.\n");
+ err++;
+ }
+ /* Third conversion: Consumes 1 byte (it's an ASCII character). */
+ ret = mbrtowc (&wc, mbs, inlen - consumed, &st);
+ if (ret != 1)
+ {
+ printf ("error: Third conversion consumed only %zd bytes.\n", ret);
+ err++;
+ }
+ /* Advance the one byte. */
+ mbs += ret;
+ consumed += ret;
+ if (wc != test.expected[2])
+ {
+ printf ("error: Result of third conversion was wrong.\n");
+ err++;
+ }
+ /* Return 0 if we saw no errors. */
+ return err;
+}
+
+static int
+do_test (void)
+{
+ int err = 0;
+ int ret;
+ /* Testing BIG5-HKSCS. */
+ setlocale (LC_ALL, "zh_HK.BIG5-HKSCS");
+
+ /* Run all the special conversions. */
+ for (int i = 0; i < (sizeof (tests) / sizeof (struct testdata)); i++)
+ {
+ printf ("Running test for %s\n", tests[i].name);
+ ret = check_conversion (tests[i]);
+ if (ret > 0)
+ printf ("Test %s failed.\n", tests[i].name);
+ err += ret;
+ }
+
+ /* Fail if any conversion had an error. */
+ if (err > 0)
+ FAIL_EXIT1 ("One or more conversions failed.");
+
+ return 0;
+}
+
+#include <support/test-driver.c>
--
2.19.1

417
glibc.spec
View File

@ -59,7 +59,7 @@
############################################################################## ##############################################################################
Name: glibc Name: glibc
Version: 2.28 Version: 2.28
Release: 40 Release: 41
Summary: The GNU libc libraries Summary: The GNU libc libraries
License: %{all_license} License: %{all_license}
URL: http://www.gnu.org/software/glibc/ URL: http://www.gnu.org/software/glibc/
@ -77,6 +77,14 @@ Patch0: Fix-use-after-free-in-glob-when-expanding-user-bug-2.patch
Patch1: backport-Kunpeng-patches.patch Patch1: backport-Kunpeng-patches.patch
Patch2: Avoid-ldbl-96-stack-corruption-from-range-reduction-.patch Patch2: Avoid-ldbl-96-stack-corruption-from-range-reduction-.patch
Patch3: backport-CVE-2020-1751-Fix-array-overflow-in-backtrace-on-PowerPC-bug-25423.patch Patch3: backport-CVE-2020-1751-Fix-array-overflow-in-backtrace-on-PowerPC-bug-25423.patch
Patch4: Do-not-use-gettimeofday-in-random-id.patch
Patch5: Reset-converter-state-after-second-wchar_t-output-Bu.patch
Patch6: Fix-avx2-strncmp-offset-compare-condition-check-BZ-2.patch
Patch7: nptl-wait-for-pending-setxid-request-also-in-detache.patch
Patch8: x86-64-Use-RDX_LP-on-__x86_shared_non_temporal_thres.patch
Patch9: x86_64-Use-xmmN-with-vpxor-to-clear-a-vector-registe.patch
Patch10: nptl-Don-t-madvise-user-provided-stack.patch
Patch11: turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch
Provides: ldconfig rtld(GNU_HASH) bundled(gnulib) Provides: ldconfig rtld(GNU_HASH) bundled(gnulib)
@ -161,6 +169,7 @@ Summary: All language packs for %{name}.
Requires: %{name} = %{version}-%{release} Requires: %{name} = %{version}-%{release}
Requires: %{name}-common = %{version}-%{release} Requires: %{name}-common = %{version}-%{release}
Provides: %{name}-langpack = %{version}-%{release} Provides: %{name}-langpack = %{version}-%{release}
Obsoletes: %{name}-minimal-langpack = 2.28
%{lua: %{lua:
-- List the Symbol provided by all-langpacks -- List the Symbol provided by all-langpacks
@ -168,7 +177,7 @@ lang_provides = {}
for line in io.lines(rpm.expand("%{SOURCE7}")) do for line in io.lines(rpm.expand("%{SOURCE7}")) do
print(rpm.expand([[ print(rpm.expand([[
Provides:]]..line..[[ = %{version}-%{release} Provides:]]..line..[[ = %{version}-%{release}
Obsoletes:]]..line..[[ Obsoletes:]]..line..[[ = 2.28
]])) ]]))
end end
} }
@ -212,8 +221,8 @@ Provides: %{name}-headers = %{version}-%{release}
Provides: %{name}-headers(%{_target_cpu}) Provides: %{name}-headers(%{_target_cpu})
Provides: %{name}-headers%{_isa} = %{version}-%{release} Provides: %{name}-headers%{_isa} = %{version}-%{release}
Obsoletes: %{name}-static Obsoletes: %{name}-static = 2.28
Obsoletes: %{name}-headers Obsoletes: %{name}-headers = 2.28
%description devel %description devel
The glibc-devel package contains the object files necessary for developing The glibc-devel package contains the object files necessary for developing
@ -248,7 +257,7 @@ Provides: nss_db = %{version}-%{release}
Provides: nss_db%{_isa} = %{version}-%{release} Provides: nss_db%{_isa} = %{version}-%{release}
Provides: nss_hesiod = %{version}-%{release} Provides: nss_hesiod = %{version}-%{release}
Provides: nss_hesiod%{_isa} = %{version}-%{release} Provides: nss_hesiod%{_isa} = %{version}-%{release}
Obsoletes: nss_db nss_hesiod Obsoletes: nss_db = 2.28, nss_hesiod = 2.28
%description -n nss_modules %description -n nss_modules
This package contains nss_db and nss_hesiod. The former uses hash-indexed files This package contains nss_db and nss_hesiod. The former uses hash-indexed files
@ -299,19 +308,47 @@ to run microbenchmark tests on the system.
%package debugutils %package debugutils
Summary: debug files for %{name} Summary: debug files for %{name}
Requires: %{name} = %{version}-%{release} Requires: %{name} = %{version}-%{release}
Requires: %{name}-debuginfo = %{version}-%{release}
Provides: %{name}-debuginfo = %{version}-%{release}
Provides: %{name}-debuginfo%{_isa} = %{version}-%{release}
Provides: %{name}-utils = %{version}-%{release} Provides: %{name}-utils = %{version}-%{release}
Provides: %{name}-utils%{_isa} = %{version}-%{release} Provides: %{name}-utils%{_isa} = %{version}-%{release}
Obsoletes: %{name}-utils Obsoletes: %{name}-utils = 2.28
%description debugutils %description debugutils
This package provides many static files for debug. Besides, It contain memusage, This package provides memusage, a memory usage profiler, mtrace, a memory leak
a memory usage profiler, mtrace, a memory leak tracer and xtrace, a function tracer and xtrace, a function call tracer, all of which is not necessory for you.
call tracer, all of which is not necessory for you.
##############################################################################
# glibc debuginfo sub-package
##############################################################################
%if 0%{?_enable_debug_packages}
%define debug_package %{nil}
%define __debug_install_post %{nil}
%global __debug_package 1
%undefine _debugsource_packages
%undefine _debuginfo_subpackages
%undefine _unique_debug_names
%undefine _unique_debug_srcs
%package debuginfo
Summary: Debug information for %{name}
AutoReqProv: no
%description debuginfo
This package provides debug information for package %{name}.
Debug information is useful when developing applications that use this
package or when debugging this package.
%package debugsource
Summary: Debug source for %{name}
AutoReqProv: no
%description debugsource
This package provides debug sources for package %{name}.
Debug sources are useful when developing applications that use this
package or when debugging this package.
%endif # 0%{?_enable_debug_packages}
############################################################################## ##############################################################################
# glibc help sub-package # glibc help sub-package
@ -344,6 +381,7 @@ touch locale/programs/*-kw.h
%build %build
BuildFlags="-O2 -g -Wno-error" BuildFlags="-O2 -g -Wno-error"
BuildFlags="$BuildFlags -DNDEBUG"
reference=" \ reference=" \
"-Wp,-D_GLIBCXX_ASSERTIONS" \ "-Wp,-D_GLIBCXX_ASSERTIONS" \
"-fasynchronous-unwind-tables" \ "-fasynchronous-unwind-tables" \
@ -607,7 +645,216 @@ for i in $RPM_BUILD_ROOT%{_prefix}/bin/{xtrace,memusage}; do
-e 's~='\''/\\\$LIB/libmemusage.so~='\''%{_prefix}/\\$LIB/libmemusage.so~' \ -e 's~='\''/\\\$LIB/libmemusage.so~='\''%{_prefix}/\\$LIB/libmemusage.so~' \
-i $i -i $i
done done
touch master.filelist
touch glibc.filelist
touch common.filelist
touch devel.filelist
touch nscd.filelist
touch nss_modules.filelist
touch nss-devel.filelist
touch libnsl.filelist
touch debugutils.filelist
touch benchtests.filelist
touch debuginfo.filelist
{
find $RPM_BUILD_ROOT \( -type f -o -type l \) \
\( \
-name etc -printf "%%%%config " -o \
-name gconv-modules \
-printf "%%%%verify(not md5 size mtime) %%%%config(noreplace) " -o \
-name gconv-modules.cache \
-printf "%%%%verify(not md5 size mtime) " \
, \
! -path "*/lib/debug/*" -printf "/%%P\n" \)
find $RPM_BUILD_ROOT -type d \
\( -path '*%{_prefix}/share/locale' -prune -o \
\( -path '*%{_prefix}/share/*' \
%if %{with docs}
! -path '*%{_infodir}' -o \
%endif
-path "*%{_prefix}/include/*" \
\) -printf "%%%%dir /%%P\n" \)
} | {
sed -e '\,.*/share/locale/\([^/_]\+\).*/LC_MESSAGES/.*\.mo,d' \
-e '\,.*/share/i18n/locales/.*,d' \
-e '\,.*/share/i18n/charmaps/.*,d' \
-e '\,.*/etc/\(localtime\|nsswitch.conf\|ld\.so\.conf\|ld\.so\.cache\|default\|rpc\|gai\.conf\),d' \
-e '\,.*/%{_libdir}/lib\(pcprofile\|memusage\)\.so,d' \
-e '\,.*/bin/\(memusage\|mtrace\|xtrace\|pcprofiledump\),d'
} | sort > master.filelist
chmod 0444 master.filelist
##############################################################################
# glibc - The GNU C Library (glibc) core package.
##############################################################################
cat master.filelist \
| grep -v \
-e '%{_infodir}' \
-e '%{_libdir}/lib.*_p.a' \
-e '%{_prefix}/include' \
-e '%{_libdir}/lib.*\.a' \
-e '%{_libdir}/.*\.o' \
-e '%{_libdir}/lib.*\.so' \
-e 'nscd' \
-e '%{_prefix}/bin' \
-e '%{_prefix}/lib/locale' \
-e '%{_prefix}/sbin/[^gi]' \
-e '%{_prefix}/share' \
-e '/var/db/Makefile' \
-e '/libnss_.*\.so[0-9.]*$' \
-e '/libnsl' \
-e 'glibc-benchtests' \
-e 'aux-cache' \
-e 'build-locale-archive' \
> glibc.filelist
for module in compat files dns; do
cat master.filelist \
| grep -E \
-e "/libnss_$module(\.so\.[0-9.]+|-[0-9.]+\.so)$" \
>> glibc.filelist
done
grep -e "libmemusage.so" -e "libpcprofile.so" master.filelist >> glibc.filelist
##############################################################################
# glibc "common" sub-package
##############################################################################
grep '%{_prefix}/bin' master.filelist > common.filelist
grep '%{_prefix}/sbin/[^gi]' master.filelist \
| grep -v 'nscd' >> common.filelist
grep '%{_prefix}/share' master.filelist \
| grep -v \
-e '%{_prefix}/share/info/libc.info.*' \
-e '%%dir %{prefix}/share/info' \
-e '%%dir %{prefix}/share' \
>> common.filelist
echo '%{_prefix}/sbin/build-locale-archive' >> common.filelist
###############################################################################
# glibc "devel" sub-package
###############################################################################
%if %{with docs}
grep '%{_infodir}' master.filelist | grep -v '%{_infodir}/dir' > devel.filelist
%endif
grep '%{_libdir}/lib.*\.a' master.filelist \
| grep '/lib\(\(c\|pthread\|nldbl\|mvec\)_nonshared\|g\|ieee\|mcheck\)\.a$' \
>> devel.filelist
grep '%{_libdir}/.*\.o' < master.filelist >> devel.filelist
grep '%{_libdir}/lib.*\.so' < master.filelist >> devel.filelist
sed -i -e '\,libmemusage.so,d' \
-e '\,libpcprofile.so,d' \
-e '\,/libnss_[a-z]*\.so$,d' \
devel.filelist
grep '%{_prefix}/include' < master.filelist >> devel.filelist
grep '%{_libdir}/lib.*\.a' < master.filelist \
| grep -v '/lib\(\(c\|pthread\|nldbl\|mvec\)_nonshared\|g\|ieee\|mcheck\)\.a$' \
>> devel.filelist
##############################################################################
# glibc "nscd" sub-package
##############################################################################
echo '%{_prefix}/sbin/nscd' > nscd.filelist
##############################################################################
# nss modules sub-package
##############################################################################
grep -E "/libnss_(db|hesiod)(\.so\.[0-9.]+|-[0-9.]+\.so)$" \
master.filelist > nss_modules.filelist
##############################################################################
# nss-devel sub-package
##############################################################################
grep '/libnss_[a-z]*\.so$' master.filelist > nss-devel.filelist
##############################################################################
# libnsl subpackage
##############################################################################
grep '/libnsl-[0-9.]*.so$' master.filelist > libnsl.filelist
test $(wc -l < libnsl.filelist) -eq 1
##############################################################################
# glibc debugutils sub-package
##############################################################################
cat > debugutils.filelist <<EOF
%if %{without bootstrap}
%{_prefix}/bin/memusage
%{_prefix}/bin/memusagestat
%endif
%{_prefix}/bin/mtrace
%{_prefix}/bin/pcprofiledump
%{_prefix}/bin/xtrace
EOF
##############################################################################
# glibc benchtests sub-package
##############################################################################
find build-%{target}/benchtests -type f -executable | while read b; do
echo "%{_prefix}/libexec/glibc-benchtests/$(basename $b)"
done > benchtests.filelist
# ... and the makefile.
for b in %{SOURCE4} %{SOURCE5}; do
echo "%{_prefix}/libexec/glibc-benchtests/$(basename $b)" >> benchtests.filelist
done
# ... and finally, the comparison scripts.
echo "%{_prefix}/libexec/glibc-benchtests/benchout.schema.json" >> benchtests.filelist
echo "%{_prefix}/libexec/glibc-benchtests/compare_bench.py*" >> benchtests.filelist
echo "%{_prefix}/libexec/glibc-benchtests/import_bench.py*" >> benchtests.filelist
echo "%{_prefix}/libexec/glibc-benchtests/validate_benchout.py*" >> benchtests.filelist
%endif # 0%{?_enable_debug_packages} %endif # 0%{?_enable_debug_packages}
##############################################################################
# glibc debuginfo sub-package
##############################################################################
touch debuginfo_additional.filelist
find_debuginfo_args='--strict-build-id -i'
%ifarch %{x86_arches}
find_debuginfo_args="$find_debuginfo_args \
-l common.filelist \
-l debugutils.filelist \
-l nscd.filelist \
-p '.*/(sbin|libexec)/.*' \
-o debuginfo_additional.filelist \
-l nss_modules.filelist \
-l libnsl.filelist \
-l glibc.filelist \
%if %{with benchtests}
-l benchtests.filelist
%endif
"
%endif
/usr/lib/rpm/find-debuginfo.sh $find_debuginfo_args -o debuginfo.filelist
%ifarch %{x86_arches}
sed -i '\#^$RPM_BUILD_ROOT%{_prefix}/src/debug/#d' debuginfo_additional.filelist
cat debuginfo_additional.filelist >> debuginfo.filelist
find $RPM_BUILD_ROOT%{_prefix}/src/debug \
\( -type d -printf '%%%%dir ' \) , \
-printf '%{_prefix}/src/debug/%%P\n' >> debuginfo.filelist
add_dir=%{_prefix}/lib/debug%{_libdir}
find $RPM_BUILD_ROOT$add_dir -name "*.a" -printf "$add_dir/%%P\n" >> debuginfo.filelist
%endif # %{x86_arches}
remove_dir="%{_prefix}/src/debug"
remove_dir="$remove_dir $(echo %{_prefix}/lib/debug{,/%{_lib},/bin,/sbin})"
remove_dir="$remove_dir $(echo %{_prefix}/lib/debug%{_prefix}{,/%{_lib},/libexec,/bin,/sbin})"
for d in $(echo $remove_dir | sed 's/ /\n/g'); do
sed -i "\|^%%dir $d/\?$|d" debuginfo.filelist
done
%endif # %{with benchtests} %endif # %{with benchtests}
############################################################################## ##############################################################################
# Run the glibc testsuite # Run the glibc testsuite
@ -734,68 +981,35 @@ fi
############################################################################## ##############################################################################
# Files list # Files list
############################################################################## ##############################################################################
%files %files -f glibc.filelist
%dir %{_prefix}/%{_lib}/audit
%verify(not md5 size mtime) %config(noreplace) /etc/nsswitch.conf %verify(not md5 size mtime) %config(noreplace) /etc/nsswitch.conf
%verify(not md5 size mtime) %config(noreplace) /etc/ld.so.conf %verify(not md5 size mtime) %config(noreplace) /etc/ld.so.conf
%verify(not md5 size mtime) %config(noreplace) /etc/rpc %verify(not md5 size mtime) %config(noreplace) /etc/rpc
%verify(not md5 size mtime) %config(noreplace) /usr/lib64/gconv/gconv-modules
%verify(not md5 size mtime) /usr/lib64/gconv/gconv-modules.cache
%dir /etc/ld.so.conf.d %dir /etc/ld.so.conf.d
%dir %{_prefix}/libexec/getconf %dir %{_prefix}/libexec/getconf
%{_prefix}/libexec/getconf/*
%dir %{_libdir}/gconv %dir %{_libdir}/gconv
%{_libdir}/gconv/*.so
%dir %{_libdir}/audit
%{_libdir}/audit/*
%dir %attr(0700,root,root) /var/cache/ldconfig %dir %attr(0700,root,root) /var/cache/ldconfig
%attr(0600,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/cache/ldconfig/aux-cache %attr(0600,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/cache/ldconfig/aux-cache
%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /etc/ld.so.cache %attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /etc/ld.so.cache
%attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /etc/gai.conf %attr(0644,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /etc/gai.conf
%{_sbindir}/glibc* %{!?_licensedir:%global license %%doc}
%{_sbindir}/iconvconfig
/lib/*
%{_libdir}/libmemusage.so
%{_libdir}/libpcprofile.so
/sbin/ldconfig
/%{_lib}/*.*
%exclude /%{_lib}/libnss_db*
%exclude /%{_lib}/libnss_hesiod*
%exclude /%{_lib}/libnsl*
%exclude /lib/systemd
%license COPYING COPYING.LIB LICENSES %license COPYING COPYING.LIB LICENSES
%files common %files -f common.filelist common
%dir %{_prefix}/share/i18n
%dir %{_prefix}/share/i18n/charmaps
%dir %{_prefix}/share/i18n/locales
%attr(0644,root,root) %verify(not md5 size mtime) %{_prefix}/lib/locale/locale-archive.tmpl %attr(0644,root,root) %verify(not md5 size mtime) %{_prefix}/lib/locale/locale-archive.tmpl
%attr(0644,root,root) %verify(not md5 size mtime mode) %ghost %config(missingok,noreplace) %{_prefix}/lib/locale/locale-archive %attr(0644,root,root) %verify(not md5 size mtime mode) %ghost %config(missingok,noreplace) %{_prefix}/lib/locale/locale-archive
%{_prefix}/lib/locale/C.utf8 %dir %{_prefix}/lib/locale
%dir %{_prefix}/lib/locale/C.utf8
%{_prefix}/lib/locale/C.utf8/*
%{_prefix}/lib/locale/zh_CN.utf8 %{_prefix}/lib/locale/zh_CN.utf8
%{_prefix}/lib/locale/en_US.utf8 %{_prefix}/lib/locale/en_US.utf8
%{_prefix}/share/locale/zh_CN %{_prefix}/share/locale/zh_CN
%{_prefix}/share/locale/en_GB %{_prefix}/share/locale/en_GB
%{_prefix}/bin/catchsegv
%{_prefix}/bin/gencat
%{_prefix}/bin/getconf
%{_prefix}/bin/getent
%{_prefix}/bin/iconv
%{_prefix}/bin/ldd
%{_prefix}/bin/locale
%{_prefix}/bin/localedef
%{_prefix}/bin/makedb
%{_prefix}/bin/pldd
%{_prefix}/bin/sotruss
%{_prefix}/bin/sprof
%{_prefix}/bin/tzselect
%dir %attr(755,root,root) /etc/default %dir %attr(755,root,root) /etc/default
%verify(not md5 size mtime) %config(noreplace) /etc/default/nss %verify(not md5 size mtime) %config(noreplace) /etc/default/nss
%{_prefix}/share/locale/locale.alias
%{_sbindir}/build-locale-archive
%{_sbindir}/zdump
%{_sbindir}/zic
%files all-langpacks -f libc.lang %files -f libc.lang all-langpacks
%{_prefix}/lib/locale %{_prefix}/lib/locale
%exclude %{_prefix}/lib/locale/locale-archive %exclude %{_prefix}/lib/locale/locale-archive
%exclude %{_prefix}/lib/locale/locale-archive.tmpl %exclude %{_prefix}/lib/locale/locale-archive.tmpl
@ -806,61 +1020,14 @@ fi
%exclude %{_prefix}/share/locale/en_GB %exclude %{_prefix}/share/locale/en_GB
%files locale-source %files locale-source
%dir %{_prefix}/share/i18n/locales
%{_prefix}/share/i18n/locales/* %{_prefix}/share/i18n/locales/*
%dir %{_prefix}/share/i18n/charmaps
%{_prefix}/share/i18n/charmaps/* %{_prefix}/share/i18n/charmaps/*
%files devel %files -f devel.filelist devel
%{_infodir}/*
%{_libdir}/*.a
%{_libdir}/*.o
%{_libdir}/*.so
%{_prefix}/include/*.h
%dir %{_prefix}/include/arpa
%dir %{_prefix}/include/bits
%dir %{_prefix}/include/bits/types
%dir %{_prefix}/include/gnu
%dir %{_prefix}/include/net
%dir %{_prefix}/include/netash
%dir %{_prefix}/include/netatalk
%dir %{_prefix}/include/netax25
%dir %{_prefix}/include/neteconet
%dir %{_prefix}/include/netinet
%dir %{_prefix}/include/netipx
%dir %{_prefix}/include/netiucv
%dir %{_prefix}/include/netpacket
%dir %{_prefix}/include/netrom
%dir %{_prefix}/include/netrose
%dir %{_prefix}/include/nfs
%dir %{_prefix}/include/protocols
%dir %{_prefix}/include/rpc
%dir %{_prefix}/include/scsi
%dir %{_prefix}/include/sys
%{_prefix}/include/arpa/*
%{_prefix}/include/bits/*
%{_prefix}/include/gnu/*
%{_prefix}/include/net/*
%{_prefix}/include/netash/*
%{_prefix}/include/netatalk/*
%{_prefix}/include/netax25/*
%{_prefix}/include/neteconet/*
%{_prefix}/include/netinet/*
%{_prefix}/include/netipx/*
%{_prefix}/include/netiucv/*
%{_prefix}/include/netpacket/*
%{_prefix}/include/netrom/*
%{_prefix}/include/netrose/*
%{_prefix}/include/nfs/*
%{_prefix}/include/protocols/*
%{_prefix}/include/rpc/*
%{_prefix}/include/scsi/*
%{_prefix}/include/sys/*
%exclude %{_libdir}/libmemusage.so
%exclude %{_libdir}/libpcprofile.so
%exclude %{_libdir}/libnss*
%exclude %{_prefix}/bin/rpcgen
%exclude %{_prefix}/include/rpcsvc/*
%files -n nscd %files -f nscd.filelist -n nscd
%config(noreplace) /etc/nscd.conf %config(noreplace) /etc/nscd.conf
%dir %attr(0755,root,root) /var/run/nscd %dir %attr(0755,root,root) /var/run/nscd
%dir %attr(0755,root,root) /var/db/nscd %dir %attr(0755,root,root) /var/db/nscd
@ -878,50 +1045,42 @@ fi
%attr(0600,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/db/nscd/hosts %attr(0600,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/db/nscd/hosts
%attr(0600,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/db/nscd/services %attr(0600,root,root) %verify(not md5 size mtime) %ghost %config(missingok,noreplace) /var/db/nscd/services
%ghost %config(missingok,noreplace) /etc/sysconfig/nscd %ghost %config(missingok,noreplace) /etc/sysconfig/nscd
%{_sbindir}/nscd
%files -n nss_modules %files -f nss_modules.filelist -n nss_modules
/var/db/Makefile /var/db/Makefile
/%{_lib}/libnss_db*
/%{_lib}/libnss_hesiod*
%files nss-devel %files -f nss-devel.filelist nss-devel
%{_libdir}/libnss*
%files -n libnsl %files -f libnsl.filelist -n libnsl
/%{_lib}/libnsl* /%{_lib}/libnsl.so.1
%files -f debugutils.filelist debugutils
%if %{with benchtests} %if %{with benchtests}
%files benchtests %files -f benchtests.filelist benchtests
%{_prefix}/libexec/glibc-benchtests/*
%endif %endif
%files debugutils %if 0%{?_enable_debug_packages}
%if %{without bootstrap} %files -f debuginfo.filelist debuginfo
%{_prefix}/bin/memusage
%{_prefix}/bin/memusagestat
%endif
%{_prefix}/bin/mtrace
%{_prefix}/bin/pcprofiledump
%{_prefix}/bin/xtrace
%{_prefix}/lib/debug/usr/bin/*.debug
%{_prefix}/lib/debug/usr/lib64/*.a
%files debugsource
%endif
%files help %files help
#Doc of glibc package #Doc of glibc package
%doc README NEWS INSTALL elf/rtld-debugger-interface.txt %doc README NEWS INSTALL elf/rtld-debugger-interface.txt
#Doc of common sub-package #Doc of common sub-package
%doc documentation/README.timezone %doc documentation/README.timezone
%doc documentation/gai.conf %doc documentation/gai.conf
#Doc of nss_modules sub-package #Doc of nss_modules sub-package
%doc hesiod/README.hesiod %doc hesiod/README.hesiod
%changelog %changelog
* Sat May 23 2020 liqingqing<liqignqing3@huawei.com> - 2.28-40 * Thu Jul 2 2020 Wang Shuo<wangshuo47@huawei.com> - 2.28-41
- add filelist to improve the scalability
- backport many patch for bugfix
* Sat May 30 2020 liqingqing<liqignqing3@huawei.com> - 2.28-40
- Fix array overflow in backtrace on PowerPC (bug 25423) - Fix array overflow in backtrace on PowerPC (bug 25423)
* Thu May 28 2020 jdkboy<guoge1@huawei.com> - 2.28-39 * Thu May 28 2020 jdkboy<guoge1@huawei.com> - 2.28-39

41
nptl-Don-t-madvise-user-provided-stack.patch Normal file
View File

@ -0,0 +1,41 @@
From 087942251f26d5fd5802b8d14e47d460263a0c4d Mon Sep 17 00:00:00 2001
From: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date: Wed, 24 Jun 2020 07:47:15 +0100
Subject: [PATCH] nptl: Don't madvise user provided stack
User provided stack should not be released nor madvised at
thread exit because it's owned by the user.
If the memory is shared or file based then MADV_DONTNEED
can have unwanted effects. With memory tagging on aarch64
linux the tags are dropped and thus it may invalidate
pointers.
Tested on aarch64-linux-gnu with MTE, it fixes
FAIL: nptl/tst-stack3
FAIL: nptl/tst-stack3-mem
---
nptl/pthread_create.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/nptl/pthread_create.c b/nptl/pthread_create.c
index 179f07a1..00931c19 100644
--- a/nptl/pthread_create.c
+++ b/nptl/pthread_create.c
@@ -573,8 +573,9 @@ START_THREAD_DEFN
}
#endif
- advise_stack_range (pd->stackblock, pd->stackblock_size, (uintptr_t) pd,
- pd->guardsize);
+ if (!pd->user_stack)
+ advise_stack_range (pd->stackblock, pd->stackblock_size, (uintptr_t) pd,
+ pd->guardsize);
if (__glibc_unlikely (pd->cancelhandling & SETXID_BITMASK))
{
--
2.19.1

52
nptl-wait-for-pending-setxid-request-also-in-detache.patch Normal file
View File

@ -0,0 +1,52 @@
From 4cab20fa49b3ea3e3454fdc4f13bf3828d8efd19 Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@suse.de>
Date: Thu, 7 May 2020 15:50:09 +0200
Subject: [PATCH] nptl: wait for pending setxid request also in detached thread
(bug 25942)
There is a race between __nptl_setxid and exiting detached thread, which
causes a deadlock on stack_cache_lock. The deadlock happens in this
state:
T1: setgroups -> __nptl_setxid (holding stack_cache_lock, waiting on cmdp->cntr == 0)
T2 (detached, exiting): start_thread -> __deallocate_stack (waiting on stack_cache_lock)
more threads waiting on stack_cache_lock in pthread_create
For non-detached threads, start_thread waits for its own setxid handler to
finish before exiting. Do this for detached threads as well.
---
nptl/pthread_create.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/nptl/pthread_create.c b/nptl/pthread_create.c
index afd379e89a..a43089065c 100644
--- a/nptl/pthread_create.c
+++ b/nptl/pthread_create.c
@@ -552,11 +552,7 @@ START_THREAD_DEFN
advise_stack_range (pd->stackblock, pd->stackblock_size, (uintptr_t) pd,
pd->guardsize);
- /* If the thread is detached free the TCB. */
- if (IS_DETACHED (pd))
- /* Free the TCB. */
- __free_tcb (pd);
- else if (__glibc_unlikely (pd->cancelhandling & SETXID_BITMASK))
+ if (__glibc_unlikely (pd->cancelhandling & SETXID_BITMASK))
{
/* Some other thread might call any of the setXid functions and expect
us to reply. In this case wait until we did that. */
@@ -572,6 +568,11 @@ START_THREAD_DEFN
pd->setxid_futex = 0;
}
+ /* If the thread is detached free the TCB. */
+ if (IS_DETACHED (pd))
+ /* Free the TCB. */
+ __free_tcb (pd);
+
/* We cannot call '_exit' here. '_exit' will terminate the process.
The 'exit' implementation in the kernel will signal when the
--
2.19.1

25
turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch Normal file
View File

@ -0,0 +1,25 @@
From 44314a556239a7524b5a6451025737c1bdbb1cd0 Mon Sep 17 00:00:00 2001
From: Wang Shuo <wangshuo47@huawei.com>
Date: Thu, 21 May 2020 11:23:06 +0800
Subject: [PATCH] turn REP_STOSB_THRESHOLD from 2k to 1M
---
sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
index dcd63c92..92c08eed 100644
--- a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
+++ b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
@@ -65,7 +65,7 @@
Enhanced REP STOSB. Since the stored value is fixed, larger register
size has minimal impact on threshold. */
#ifndef REP_STOSB_THRESHOLD
-# define REP_STOSB_THRESHOLD 2048
+# define REP_STOSB_THRESHOLD 1048576
#endif
#ifndef SECTION
--
2.19.1

50
x86-64-Use-RDX_LP-on-__x86_shared_non_temporal_thres.patch Normal file
View File

@ -0,0 +1,50 @@
From 55c7bcc71b84123d5d4bd2814366a6b05fcf8ebd Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Sat, 9 May 2020 12:04:23 -0700
Subject: [PATCH] x86-64: Use RDX_LP on __x86_shared_non_temporal_threshold [BZ
#25966]
Since __x86_shared_non_temporal_threshold is defined as
long int __x86_shared_non_temporal_threshold;
and long int is 4 bytes for x32, use RDX_LP to compare against
__x86_shared_non_temporal_threshold in assembly code.
---
sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
index c763b7d871..74953245aa 100644
--- a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
+++ b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
@@ -244,7 +244,7 @@ L(return):
ret
L(movsb):
- cmpq __x86_shared_non_temporal_threshold(%rip), %rdx
+ cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP
jae L(more_8x_vec)
cmpq %rsi, %rdi
jb 1f
@@ -402,7 +402,7 @@ L(more_8x_vec):
addq %r8, %rdx
#if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc)
/* Check non-temporal store threshold. */
- cmpq __x86_shared_non_temporal_threshold(%rip), %rdx
+ cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP
ja L(large_forward)
#endif
L(loop_4x_vec_forward):
@@ -454,7 +454,7 @@ L(more_8x_vec_backward):
subq %r8, %rdx
#if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc)
/* Check non-temporal store threshold. */
- cmpq __x86_shared_non_temporal_threshold(%rip), %rdx
+ cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP
ja L(large_backward)
#endif
L(loop_4x_vec_backward):
--
2.19.1

43
x86_64-Use-xmmN-with-vpxor-to-clear-a-vector-registe.patch Normal file
View File

@ -0,0 +1,43 @@
From a35a59036ebae3efcdf5e8167610e0656fca9770 Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Thu, 11 Jun 2020 12:41:18 -0700
Subject: [PATCH] x86_64: Use %xmmN with vpxor to clear a vector register
Since "vpxor %xmmN, %xmmN, %xmmN" clears the whole vector register, use
%xmmN, instead of %ymmN, with vpxor to clear a vector register.
---
sysdeps/x86_64/multiarch/strcmp-avx2.S | 4 ++--
sysdeps/x86_64/multiarch/strrchr-avx2.S | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/sysdeps/x86_64/multiarch/strcmp-avx2.S b/sysdeps/x86_64/multiarch/strcmp-avx2.S
index 48d03a9f46..5f88a68262 100644
--- a/sysdeps/x86_64/multiarch/strcmp-avx2.S
+++ b/sysdeps/x86_64/multiarch/strcmp-avx2.S
@@ -91,8 +91,8 @@ ENTRY (STRCMP)
# endif
movl %edi, %eax
xorl %edx, %edx
- /* Make %ymm7 all zeros in this function. */
- vpxor %ymm7, %ymm7, %ymm7
+ /* Make %xmm7 (%ymm7) all zeros in this function. */
+ vpxor %xmm7, %xmm7, %xmm7
orl %esi, %eax
andl $(PAGE_SIZE - 1), %eax
cmpl $(PAGE_SIZE - (VEC_SIZE * 4)), %eax
diff --git a/sysdeps/x86_64/multiarch/strrchr-avx2.S b/sysdeps/x86_64/multiarch/strrchr-avx2.S
index 23077b4c45..146bdd51d0 100644
--- a/sysdeps/x86_64/multiarch/strrchr-avx2.S
+++ b/sysdeps/x86_64/multiarch/strrchr-avx2.S
@@ -44,7 +44,7 @@ ENTRY (STRRCHR)
movl %edi, %ecx
/* Broadcast CHAR to YMM4. */
VPBROADCAST %xmm4, %ymm4
- vpxor %ymm0, %ymm0, %ymm0
+ vpxor %xmm0, %xmm0, %xmm0
/* Check if we may cross page boundary with one vector load. */
andl $(2 * VEC_SIZE - 1), %ecx
--
2.19.1