From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2178) id 892173944821; Thu, 26 Nov 2020 18:12:02 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 892173944821 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Florian Weimer To: glibc-cvs@sourceware.org Subject: [glibc/fw/glibc-hwcaps] s390x: Add Add glibc-hwcaps support X-Act-Checkin: glibc X-Git-Author: Florian Weimer X-Git-Refname: refs/heads/fw/glibc-hwcaps X-Git-Oldrev: 7db3818867a84494e33ae74ddc638aadee11c8fc X-Git-Newrev: 9ce42fcddc7bc6b7dcfdd2e25d4a96fc8332f664 Message-Id: <20201126181202.892173944821@sourceware.org> Date: Thu, 26 Nov 2020 18:12:02 +0000 (GMT) X-BeenThere: glibc-cvs@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Glibc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Nov 2020 18:12:02 -0000 https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9ce42fcddc7bc6b7dcfdd2e25d4a96fc8332f664 commit 9ce42fcddc7bc6b7dcfdd2e25d4a96fc8332f664 Author: Florian Weimer Date: Thu Nov 26 16:59:44 2020 +0100 s390x: Add Add glibc-hwcaps support Subdirectories z13, z14, z15 can be selected, mostly based on the level of support for vector instructions. Diff: --- elf/Makefile | 2 +- elf/tst-glibc-hwcaps-cache.script | 10 ++++++ sysdeps/s390/s390-64/Makefile | 39 +++++++++++++++++++++++ sysdeps/s390/s390-64/dl-hwcaps-subdirs.c | 53 ++++++++++++++++++++++++++++++++ 4 files changed, 103 insertions(+), 1 deletion(-) diff --git a/elf/Makefile b/elf/Makefile index 37d3af593c..2b8458a18f 100644 --- a/elf/Makefile +++ b/elf/Makefile @@ -1828,7 +1828,7 @@ $(objpfx)argv0test.out: tst-rtld-argv0.sh $(objpfx)ld.so \ # Most likely search subdirectories, for each supported architecture. # Used to obtain test coverage wide test coverage. -glibc-hwcaps-first-subdirs-for-tests = power9 x86-64-v2 +glibc-hwcaps-first-subdirs-for-tests = power9 x86-64-v2 z13 # The test modules are parameterized by preprocessor macros. LDFLAGS-libmarkermod1-1.so += -Wl,-soname,libmarkermod1.so diff --git a/elf/tst-glibc-hwcaps-cache.script b/elf/tst-glibc-hwcaps-cache.script index 6a4675f9bd..19b06d0adc 100644 --- a/elf/tst-glibc-hwcaps-cache.script +++ b/elf/tst-glibc-hwcaps-cache.script @@ -11,6 +11,16 @@ mkdirp 0770 $L/glibc-hwcaps/power10 cp $B/elf/libmarkermod3-2.so $L/glibc-hwcaps/power9/libmarkermod3.so cp $B/elf/libmarkermod3-3.so $L/glibc-hwcaps/power10/libmarkermod3.so +mkdirp 0770 $L/glibc-hwcaps/z13 +cp $B/elf/libmarkermod2-2.so $L/glibc-hwcaps/z13/libmarkermod2.so +mkdirp 0770 $L/glibc-hwcaps/z14 +cp $B/elf/libmarkermod3-2.so $L/glibc-hwcaps/z14/libmarkermod3.so +cp $B/elf/libmarkermod3-3.so $L/glibc-hwcaps/z14/libmarkermod3.so +mkdirp 0770 $L/glibc-hwcaps/z15 +cp $B/elf/libmarkermod4-2.so $L/glibc-hwcaps/z15/libmarkermod4.so +cp $B/elf/libmarkermod4-3.so $L/glibc-hwcaps/z15/libmarkermod4.so +cp $B/elf/libmarkermod4-4.so $L/glibc-hwcaps/z15/libmarkermod4.so + mkdirp 0770 $L/glibc-hwcaps/x86-64-v2 cp $B/elf/libmarkermod2-2.so $L/glibc-hwcaps/x86-64-v2/libmarkermod2.so mkdirp 0770 $L/glibc-hwcaps/x86-64-v3 diff --git a/sysdeps/s390/s390-64/Makefile b/sysdeps/s390/s390-64/Makefile index b4d793bb3d..e5da26871c 100644 --- a/sysdeps/s390/s390-64/Makefile +++ b/sysdeps/s390/s390-64/Makefile @@ -6,4 +6,43 @@ ifeq ($(subdir),elf) CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused CFLAGS-dl-load.c += -Wno-unused CFLAGS-dl-reloc.c += -Wno-unused + +$(objpfx)tst-glibc-hwcaps: $(objpfx)libmarkermod2-1.so \ + $(objpfx)libmarkermod3-1.so $(objpfx)libmarkermod4-1.so +$(objpfx)tst-glibc-hwcaps.out: \ + $(objpfx)libmarkermod2.so \ + $(objpfx)glibc-hwcaps/z13/libmarkermod2.so \ + $(objpfx)libmarkermod3.so \ + $(objpfx)glibc-hwcaps/z13/libmarkermod3.so \ + $(objpfx)glibc-hwcaps/z14/libmarkermod3.so \ + $(objpfx)libmarkermod4.so \ + $(objpfx)glibc-hwcaps/z13/libmarkermod4.so \ + $(objpfx)glibc-hwcaps/z14/libmarkermod4.so \ + $(objpfx)glibc-hwcaps/z15/libmarkermod4.so \ + +$(objpfx)glibc-hwcaps/z13/libmarkermod2.so: $(objpfx)libmarkermod2-2.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z13/libmarkermod3.so: $(objpfx)libmarkermod3-2.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z14/libmarkermod3.so: $(objpfx)libmarkermod3-3.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z13/libmarkermod4.so: $(objpfx)libmarkermod4-2.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z14/libmarkermod4.so: $(objpfx)libmarkermod4-3.so + $(make-target-directory) + cp $< $@ +$(objpfx)glibc-hwcaps/z15/libmarkermod4.so: $(objpfx)libmarkermod4-4.so + $(make-target-directory) + cp $< $@ + +ifeq (no,$(build-hardcoded-path-in-tests)) +# This is an ld.so.cache test, and RPATH/RUNPATH in the executable +# interferes with its test objectives. +tests-container += tst-glibc-hwcaps-cache endif + +endif # $(subdir) == elf diff --git a/sysdeps/s390/s390-64/dl-hwcaps-subdirs.c b/sysdeps/s390/s390-64/dl-hwcaps-subdirs.c new file mode 100644 index 0000000000..fa8d2ce1f1 --- /dev/null +++ b/sysdeps/s390/s390-64/dl-hwcaps-subdirs.c @@ -0,0 +1,53 @@ +/* Architecture-specific glibc-hwcaps subdirectories. s390x version. + 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 + . */ + +#include +#include + +const char _dl_hwcaps_subdirs[] = "z15:z14:z13"; +enum { subdirs_count = 3 }; /* Number of components in _dl_hwcaps_subdirs. */ + +uint32_t +_dl_hwcaps_subdirs_active (void) +{ + int active = 0; + + /* Test in reverse preference order. */ + + /* z13. */ + if (!(GLRO (dl_hwcap) & HWCAP_S390_VX)) + return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active); + ++active; + + /* z14. */ + if (!((GLRO (dl_hwcap) & HWCAP_S390_VXD) + && (GLRO (dl_hwcap) & HWCAP_S390_VXE) + && (GLRO (dl_hwcap) & HWCAP_S390_GS))) + return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active); + ++active; + + /* z15. */ + if (!((GLRO (dl_hwcap) & HWCAP_S390_VXRS_EXT2) + && (GLRO (dl_hwcap) & HWCAP_S390_VXRS_PDE) + && (GLRO (dl_hwcap) & HWCAP_S390_SORT) + && (GLRO (dl_hwcap) & HWCAP_S390_DFLT))) + return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active); + ++active; + + return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active); +}