|
 |
446cf2 |
commit f267e1c9dd7fb8852cc32d6eafd96bbcfd5cbb2b
|
|
|
446cf2 |
Author: Florian Weimer <fweimer@redhat.com>
|
|
|
446cf2 |
Date: Fri Dec 4 09:13:43 2020 +0100
|
|
|
446cf2 |
|
|
|
446cf2 |
x86_64: Add glibc-hwcaps support
|
|
|
446cf2 |
|
|
|
446cf2 |
The subdirectories match those in the x86-64 psABI:
|
|
|
446cf2 |
|
|
|
446cf2 |
https://gitlab.com/x86-psABIs/x86-64-ABI/-/commit/77566eb03bc6a326811cb7e9a6b9396884b67c7c
|
|
|
446cf2 |
|
|
|
446cf2 |
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
|
446cf2 |
|
|
|
446cf2 |
diff --git a/elf/Makefile b/elf/Makefile
|
|
|
446cf2 |
index f67b231c0f8e3aff..7f2fc73877f0a4c8 100644
|
|
|
446cf2 |
--- a/elf/Makefile
|
|
|
446cf2 |
+++ b/elf/Makefile
|
|
|
446cf2 |
@@ -1751,7 +1751,7 @@ $(objpfx)argv0test.out: tst-rtld-argv0.sh $(objpfx)ld.so \
|
|
|
446cf2 |
# glibc-hwcaps mechanism for this architecture). Used to obtain test
|
|
|
446cf2 |
# coverage for some glibc-hwcaps tests for the widest possible range
|
|
|
446cf2 |
# of systems.
|
|
|
446cf2 |
-glibc-hwcaps-first-subdirs-for-tests =
|
|
|
446cf2 |
+glibc-hwcaps-first-subdirs-for-tests = x86-64-v2
|
|
|
446cf2 |
|
|
|
446cf2 |
# The test modules are parameterized by preprocessor macros.
|
|
|
446cf2 |
LDFLAGS-libmarkermod1-1.so += -Wl,-soname,libmarkermod1.so
|
|
|
446cf2 |
diff --git a/elf/tst-glibc-hwcaps-cache.script b/elf/tst-glibc-hwcaps-cache.script
|
|
|
446cf2 |
index 6356d152089cdd9a..66d6942402b7233b 100644
|
|
|
446cf2 |
--- a/elf/tst-glibc-hwcaps-cache.script
|
|
|
446cf2 |
+++ b/elf/tst-glibc-hwcaps-cache.script
|
|
|
446cf2 |
@@ -4,3 +4,13 @@
|
|
|
446cf2 |
cp $B/elf/libmarkermod2-1.so $L/libmarkermod2.so
|
|
|
446cf2 |
cp $B/elf/libmarkermod3-1.so $L/libmarkermod3.so
|
|
|
446cf2 |
cp $B/elf/libmarkermod4-1.so $L/libmarkermod4.so
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+mkdirp 0770 $L/glibc-hwcaps/x86-64-v2
|
|
|
446cf2 |
+cp $B/elf/libmarkermod2-2.so $L/glibc-hwcaps/x86-64-v2/libmarkermod2.so
|
|
|
446cf2 |
+mkdirp 0770 $L/glibc-hwcaps/x86-64-v3
|
|
|
446cf2 |
+cp $B/elf/libmarkermod3-2.so $L/glibc-hwcaps/x86-64-v2/libmarkermod3.so
|
|
|
446cf2 |
+cp $B/elf/libmarkermod3-3.so $L/glibc-hwcaps/x86-64-v3/libmarkermod3.so
|
|
|
446cf2 |
+mkdirp 0770 $L/glibc-hwcaps/x86-64-v4
|
|
|
446cf2 |
+cp $B/elf/libmarkermod4-2.so $L/glibc-hwcaps/x86-64-v2/libmarkermod4.so
|
|
|
446cf2 |
+cp $B/elf/libmarkermod4-3.so $L/glibc-hwcaps/x86-64-v3/libmarkermod4.so
|
|
|
446cf2 |
+cp $B/elf/libmarkermod4-4.so $L/glibc-hwcaps/x86-64-v4/libmarkermod4.so
|
|
|
446cf2 |
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile
|
|
|
446cf2 |
index 42b97c5cc73892cc..d1d7cb9d2eeca9c5 100644
|
|
|
446cf2 |
--- a/sysdeps/x86_64/Makefile
|
|
|
446cf2 |
+++ b/sysdeps/x86_64/Makefile
|
|
|
446cf2 |
@@ -144,8 +144,47 @@ CFLAGS-tst-auditmod10b.c += $(AVX512-CFLAGS)
|
|
|
446cf2 |
CFLAGS-tst-avx512-aux.c += $(AVX512-CFLAGS)
|
|
|
446cf2 |
CFLAGS-tst-avx512mod.c += $(AVX512-CFLAGS)
|
|
|
446cf2 |
endif
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+$(objpfx)tst-glibc-hwcaps: $(objpfx)libmarkermod2-1.so \
|
|
|
446cf2 |
+ $(objpfx)libmarkermod3-1.so $(objpfx)libmarkermod4-1.so
|
|
|
446cf2 |
+$(objpfx)tst-glibc-hwcaps.out: \
|
|
|
446cf2 |
+ $(objpfx)libmarkermod2.so \
|
|
|
446cf2 |
+ $(objpfx)glibc-hwcaps/x86-64-v2/libmarkermod2.so \
|
|
|
446cf2 |
+ $(objpfx)libmarkermod3.so \
|
|
|
446cf2 |
+ $(objpfx)glibc-hwcaps/x86-64-v2/libmarkermod3.so \
|
|
|
446cf2 |
+ $(objpfx)glibc-hwcaps/x86-64-v3/libmarkermod3.so \
|
|
|
446cf2 |
+ $(objpfx)libmarkermod4.so \
|
|
|
446cf2 |
+ $(objpfx)glibc-hwcaps/x86-64-v2/libmarkermod4.so \
|
|
|
446cf2 |
+ $(objpfx)glibc-hwcaps/x86-64-v3/libmarkermod4.so \
|
|
|
446cf2 |
+ $(objpfx)glibc-hwcaps/x86-64-v4/libmarkermod4.so \
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+$(objpfx)glibc-hwcaps/x86-64-v2/libmarkermod2.so: $(objpfx)libmarkermod2-2.so
|
|
|
446cf2 |
+ $(make-target-directory)
|
|
|
446cf2 |
+ cp $< $@
|
|
|
446cf2 |
+$(objpfx)glibc-hwcaps/x86-64-v2/libmarkermod3.so: $(objpfx)libmarkermod3-2.so
|
|
|
446cf2 |
+ $(make-target-directory)
|
|
|
446cf2 |
+ cp $< $@
|
|
|
446cf2 |
+$(objpfx)glibc-hwcaps/x86-64-v3/libmarkermod3.so: $(objpfx)libmarkermod3-3.so
|
|
|
446cf2 |
+ $(make-target-directory)
|
|
|
446cf2 |
+ cp $< $@
|
|
|
446cf2 |
+$(objpfx)glibc-hwcaps/x86-64-v2/libmarkermod4.so: $(objpfx)libmarkermod4-2.so
|
|
|
446cf2 |
+ $(make-target-directory)
|
|
|
446cf2 |
+ cp $< $@
|
|
|
446cf2 |
+$(objpfx)glibc-hwcaps/x86-64-v3/libmarkermod4.so: $(objpfx)libmarkermod4-3.so
|
|
|
446cf2 |
+ $(make-target-directory)
|
|
|
446cf2 |
+ cp $< $@
|
|
|
446cf2 |
+$(objpfx)glibc-hwcaps/x86-64-v4/libmarkermod4.so: $(objpfx)libmarkermod4-4.so
|
|
|
446cf2 |
+ $(make-target-directory)
|
|
|
446cf2 |
+ cp $< $@
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ifeq (no,$(build-hardcoded-path-in-tests))
|
|
|
446cf2 |
+# This is an ld.so.cache test, and RPATH/RUNPATH in the executable
|
|
|
446cf2 |
+# interferes with its test objectives.
|
|
|
446cf2 |
+tests-container += tst-glibc-hwcaps-cache
|
|
|
446cf2 |
endif
|
|
|
446cf2 |
|
|
|
446cf2 |
+endif # $(subdir) == elf
|
|
|
446cf2 |
+
|
|
|
446cf2 |
ifeq ($(subdir),csu)
|
|
|
446cf2 |
gen-as-const-headers += tlsdesc.sym rtld-offsets.sym
|
|
|
446cf2 |
endif
|
|
|
446cf2 |
diff --git a/sysdeps/x86_64/dl-hwcaps-subdirs.c b/sysdeps/x86_64/dl-hwcaps-subdirs.c
|
|
|
446cf2 |
new file mode 100644
|
|
|
446cf2 |
index 0000000000000000..8810a822efe36962
|
|
|
446cf2 |
--- /dev/null
|
|
|
446cf2 |
+++ b/sysdeps/x86_64/dl-hwcaps-subdirs.c
|
|
|
446cf2 |
@@ -0,0 +1,66 @@
|
|
|
446cf2 |
+/* Architecture-specific glibc-hwcaps subdirectories. x86 version.
|
|
|
446cf2 |
+ Copyright (C) 2020 Free Software Foundation, Inc.
|
|
|
446cf2 |
+ This file is part of the GNU C Library.
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
446cf2 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
446cf2 |
+ License as published by the Free Software Foundation; either
|
|
|
446cf2 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
446cf2 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
446cf2 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
446cf2 |
+ Lesser General Public License for more details.
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
446cf2 |
+ License along with the GNU C Library; if not, see
|
|
|
446cf2 |
+ <https://www.gnu.org/licenses/>. */
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+#include <dl-hwcaps.h>
|
|
|
446cf2 |
+#include <cpu-features.h>
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+const char _dl_hwcaps_subdirs[] = "x86-64-v4:x86-64-v3:x86-64-v2";
|
|
|
446cf2 |
+enum { subdirs_count = 3 }; /* Number of components in _dl_hwcaps_subdirs. */
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+uint32_t
|
|
|
446cf2 |
+_dl_hwcaps_subdirs_active (void)
|
|
|
446cf2 |
+{
|
|
|
446cf2 |
+ int active = 0;
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ /* Test in reverse preference order. */
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ /* x86-64-v2. */
|
|
|
446cf2 |
+ if (!(CPU_FEATURE_USABLE (CMPXCHG16B)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (LAHF64_SAHF64)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (POPCNT)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (SSE3)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (SSE4_1)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (SSE4_2)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (SSSE3)))
|
|
|
446cf2 |
+ return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active);
|
|
|
446cf2 |
+ ++active;
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ /* x86-64-v3. */
|
|
|
446cf2 |
+ if (!(CPU_FEATURE_USABLE (AVX)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (AVX2)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (BMI1)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (BMI2)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (F16C)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (FMA)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (LZCNT)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (MOVBE)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (OSXSAVE)))
|
|
|
446cf2 |
+ return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active);
|
|
|
446cf2 |
+ ++active;
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ /* x86-64-v4. */
|
|
|
446cf2 |
+ if (!(CPU_FEATURE_USABLE (AVX512F)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (AVX512BW)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (AVX512CD)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (AVX512DQ)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE (AVX512VL)))
|
|
|
446cf2 |
+ return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active);
|
|
|
446cf2 |
+ ++active;
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ return _dl_hwcaps_subdirs_build_bitmask (subdirs_count, active);
|
|
|
446cf2 |
+}
|
|
|
446cf2 |
diff --git a/sysdeps/x86_64/tst-glibc-hwcaps.c b/sysdeps/x86_64/tst-glibc-hwcaps.c
|
|
|
446cf2 |
new file mode 100644
|
|
|
446cf2 |
index 0000000000000000..3075a8286dc30768
|
|
|
446cf2 |
--- /dev/null
|
|
|
446cf2 |
+++ b/sysdeps/x86_64/tst-glibc-hwcaps.c
|
|
|
446cf2 |
@@ -0,0 +1,76 @@
|
|
|
446cf2 |
+/* glibc-hwcaps subdirectory test. x86_64 version.
|
|
|
446cf2 |
+ Copyright (C) 2020 Free Software Foundation, Inc.
|
|
|
446cf2 |
+ This file is part of the GNU C Library.
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ The GNU C Library is free software; you can redistribute it and/or
|
|
|
446cf2 |
+ modify it under the terms of the GNU Lesser General Public
|
|
|
446cf2 |
+ License as published by the Free Software Foundation; either
|
|
|
446cf2 |
+ version 2.1 of the License, or (at your option) any later version.
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
|
446cf2 |
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
446cf2 |
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
446cf2 |
+ Lesser General Public License for more details.
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ You should have received a copy of the GNU Lesser General Public
|
|
|
446cf2 |
+ License along with the GNU C Library; if not, see
|
|
|
446cf2 |
+ <https://www.gnu.org/licenses/>. */
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+#include <stdio.h>
|
|
|
446cf2 |
+#include <support/check.h>
|
|
|
446cf2 |
+#include <sys/param.h>
|
|
|
446cf2 |
+#include <sys/platform/x86.h>
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+extern int marker2 (void);
|
|
|
446cf2 |
+extern int marker3 (void);
|
|
|
446cf2 |
+extern int marker4 (void);
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+/* Return the x86-64-vN level, 1 for the baseline. */
|
|
|
446cf2 |
+static int
|
|
|
446cf2 |
+compute_level (void)
|
|
|
446cf2 |
+{
|
|
|
446cf2 |
+ const struct cpu_features *cpu_features
|
|
|
446cf2 |
+ = __x86_get_cpu_features (COMMON_CPUID_INDEX_MAX);
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+ if (!(CPU_FEATURE_USABLE_P (cpu_features, CMPXCHG16B)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, LAHF64_SAHF64)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, POPCNT)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, MMX)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, SSE)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, SSE2)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, SSE3)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, SSSE3)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, SSE4_1)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, SSE4_2)))
|
|
|
446cf2 |
+ return 1;
|
|
|
446cf2 |
+ if (!(CPU_FEATURE_USABLE_P (cpu_features, AVX)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, AVX2)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, BMI1)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, BMI2)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, F16C)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, FMA)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, LZCNT)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, MOVBE)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, OSXSAVE)))
|
|
|
446cf2 |
+ return 2;
|
|
|
446cf2 |
+ if (!(CPU_FEATURE_USABLE_P (cpu_features, AVX512F)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, AVX512BW)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, AVX512CD)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, AVX512DQ)
|
|
|
446cf2 |
+ && CPU_FEATURE_USABLE_P (cpu_features, AVX512VL)))
|
|
|
446cf2 |
+ return 3;
|
|
|
446cf2 |
+ return 4;
|
|
|
446cf2 |
+}
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+static int
|
|
|
446cf2 |
+do_test (void)
|
|
|
446cf2 |
+{
|
|
|
446cf2 |
+ int level = compute_level ();
|
|
|
446cf2 |
+ printf ("info: detected x86-64 micro-architecture level: %d\n", level);
|
|
|
446cf2 |
+ TEST_COMPARE (marker2 (), MIN (level, 2));
|
|
|
446cf2 |
+ TEST_COMPARE (marker3 (), MIN (level, 3));
|
|
|
446cf2 |
+ TEST_COMPARE (marker4 (), MIN (level, 4));
|
|
|
446cf2 |
+ return 0;
|
|
|
446cf2 |
+}
|
|
|
446cf2 |
+
|
|
|
446cf2 |
+#include <support/test-driver.c>
|