mirror of
https://sourceware.org/git/glibc.git
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107e6a3c22
Support usable check for all CPU features with the following changes:
1. Change struct cpu_features to
struct cpuid_features
{
struct cpuid_registers cpuid;
struct cpuid_registers usable;
};
struct cpu_features
{
struct cpu_features_basic basic;
struct cpuid_features features[COMMON_CPUID_INDEX_MAX];
unsigned int preferred[PREFERRED_FEATURE_INDEX_MAX];
...
};
so that there is a usable bit for each cpuid bit.
2. After the cpuid bits have been initialized, copy the known bits to the
usable bits. EAX/EBX from INDEX_1 and EAX from INDEX_7 aren't used for
CPU feature detection.
3. Clear the usable bits which require OS support.
4. If the feature is supported by OS, copy its cpuid bit to its usable
bit.
5. Replace HAS_CPU_FEATURE and CPU_FEATURES_CPU_P with CPU_FEATURE_USABLE
and CPU_FEATURE_USABLE_P to check if a feature is usable.
6. Add DEPR_FPU_CS_DS for INDEX_7_EBX_13.
7. Unset MPX feature since it has been deprecated.
The results are
1. If the feature is known and doesn't requre OS support, its usable bit
is copied from the cpuid bit.
2. Otherwise, its usable bit is copied from the cpuid bit only if the
feature is known to supported by OS.
3. CPU_FEATURE_USABLE/CPU_FEATURE_USABLE_P are used to check if the
feature can be used.
4. HAS_CPU_FEATURE/CPU_FEATURE_CPU_P are used to check if CPU supports
the feature.
168 lines
5.3 KiB
Makefile
168 lines
5.3 KiB
Makefile
# The i387 `long double' is a distinct type we support.
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long-double-fcts = yes
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ifeq ($(subdir),csu)
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gen-as-const-headers += link-defines.sym
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endif
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ifeq ($(subdir),gmon)
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sysdep_routines += _mcount
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# We cannot compile _mcount.S with -pg because that would create
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# recursive calls when ENTRY is used. Just copy the normal static
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# object.
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sysdep_noprof += _mcount
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endif
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ifeq ($(subdir),malloc)
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tests += tst-mallocalign1
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endif
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ifeq ($(subdir),string)
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sysdep_routines += strcasecmp_l-nonascii strncase_l-nonascii
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gen-as-const-headers += locale-defines.sym
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endif
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ifeq ($(subdir),elf)
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# There is no good reason to use MMX in x86-64 ld.so with GCC.
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CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
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-mno-mmx)
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sysdep-dl-routines += tlsdesc dl-tlsdesc tls_get_addr
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tests += ifuncmain8
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modules-names += ifuncmod8
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$(objpfx)ifuncmain8: $(objpfx)ifuncmod8.so
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tests += tst-quad1 tst-quad2
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modules-names += tst-quadmod1 tst-quadmod2
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$(objpfx)tst-quad1: $(objpfx)tst-quadmod1.so
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$(objpfx)tst-quad2: $(objpfx)tst-quadmod2.so
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quad-pie-test += tst-quad1pie tst-quad2pie
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tests += $(quad-pie-test)
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tests-pie += $(quad-pie-test)
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test-extras += tst-quadmod1pie tst-quadmod2pie
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extra-test-objs += tst-quadmod1pie.o tst-quadmod2pie.o
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$(objpfx)tst-quad1pie: $(objpfx)tst-quadmod1pie.o
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$(objpfx)tst-quad2pie: $(objpfx)tst-quadmod2pie.o
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CFLAGS-tst-quad1pie.c = $(PIE-ccflag)
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CFLAGS-tst-quad2pie.c = $(PIE-ccflag)
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tests += tst-x86_64-1
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modules-names += x86_64/tst-x86_64mod-1
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LDFLAGS-tst-x86_64mod-1.so = -Wl,-soname,tst-x86_64mod-1.so
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ifneq (no,$(have-tunables))
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# Test the state size for XSAVE when XSAVEC is disabled.
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tst-x86_64-1-ENV = GLIBC_TUNABLES=glibc.cpu.hwcaps=-XSAVEC
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endif
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$(objpfx)tst-x86_64-1: $(objpfx)x86_64/tst-x86_64mod-1.so
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ifneq (no,$(have-tunables))
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tests += tst-platform-1
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modules-names += tst-platformmod-1 x86_64/tst-platformmod-2
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CFLAGS-tst-platform-1.c = -mno-avx
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CFLAGS-tst-platformmod-1.c = -mno-avx
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CFLAGS-tst-platformmod-2.c = -mno-avx
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LDFLAGS-tst-platformmod-2.so = -Wl,-soname,tst-platformmod-2.so
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$(objpfx)tst-platform-1: $(objpfx)tst-platformmod-1.so
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$(objpfx)tst-platform-1.out: $(objpfx)x86_64/tst-platformmod-2.so
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# Turn off AVX512F and AVX2 so that GLRO(dl_platform) is
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# always set to x86_64.
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tst-platform-1-ENV = LD_PRELOAD=$(objpfx)\$$PLATFORM/tst-platformmod-2.so \
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GLIBC_TUNABLES=glibc.cpu.hwcaps=-AVX512F,-AVX2
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endif
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tests += tst-audit3 tst-audit4 tst-audit5 tst-audit6 tst-audit7 \
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tst-audit10 tst-sse tst-avx tst-avx512
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test-extras += tst-audit4-aux tst-audit10-aux \
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tst-avx-aux tst-avx512-aux
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extra-test-objs += tst-audit4-aux.o tst-audit10-aux.o \
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tst-avx-aux.o tst-avx512-aux.o
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ifeq ($(have-insert),yes)
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tests += tst-split-dynreloc
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LDFLAGS-tst-split-dynreloc = -Wl,-T,$(..)sysdeps/x86_64/tst-split-dynreloc.lds
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tst-split-dynreloc-ENV = LD_BIND_NOW=1
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endif
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modules-names += tst-auditmod3a tst-auditmod3b \
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tst-auditmod4a tst-auditmod4b \
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tst-auditmod5a tst-auditmod5b \
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tst-auditmod6a tst-auditmod6b tst-auditmod6c \
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tst-auditmod7a tst-auditmod7b \
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tst-auditmod10a tst-auditmod10b \
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tst-ssemod tst-avxmod tst-avx512mod
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$(objpfx)tst-audit3: $(objpfx)tst-auditmod3a.so
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$(objpfx)tst-audit3.out: $(objpfx)tst-auditmod3b.so
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tst-audit3-ENV = LD_AUDIT=$(objpfx)tst-auditmod3b.so
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$(objpfx)tst-audit4: $(objpfx)tst-audit4-aux.o $(objpfx)tst-auditmod4a.so
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$(objpfx)tst-audit4.out: $(objpfx)tst-auditmod4b.so
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tst-audit4-ENV = LD_AUDIT=$(objpfx)tst-auditmod4b.so
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$(objpfx)tst-audit5: $(objpfx)tst-auditmod5a.so
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$(objpfx)tst-audit5.out: $(objpfx)tst-auditmod5b.so
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tst-audit5-ENV = LD_AUDIT=$(objpfx)tst-auditmod5b.so
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$(objpfx)tst-audit6: $(objpfx)tst-auditmod6a.so
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$(objpfx)tst-audit6.out: $(objpfx)tst-auditmod6b.so \
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$(objpfx)tst-auditmod6c.so
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tst-audit6-ENV = LD_AUDIT=$(objpfx)tst-auditmod6b.so:$(objpfx)tst-auditmod6c.so
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$(objpfx)tst-audit7: $(objpfx)tst-auditmod7a.so
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$(objpfx)tst-audit7.out: $(objpfx)tst-auditmod7b.so
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tst-audit7-ENV = LD_AUDIT=$(objpfx)tst-auditmod7b.so
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$(objpfx)tst-audit10: $(objpfx)tst-audit10-aux.o $(objpfx)tst-auditmod10a.so
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$(objpfx)tst-audit10.out: $(objpfx)tst-auditmod10b.so
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tst-audit10-ENV = LD_AUDIT=$(objpfx)tst-auditmod10b.so
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$(objpfx)tst-sse: $(objpfx)tst-ssemod.so
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$(objpfx)tst-avx: $(objpfx)tst-avx-aux.o $(objpfx)tst-avxmod.so
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$(objpfx)tst-avx512: $(objpfx)tst-avx512-aux.o $(objpfx)tst-avx512mod.so
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AVX-CFLAGS=-mavx -mno-vzeroupper
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CFLAGS-tst-audit4-aux.c += $(AVX-CFLAGS)
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CFLAGS-tst-auditmod4a.c += $(AVX-CFLAGS)
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CFLAGS-tst-auditmod4b.c += $(AVX-CFLAGS)
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CFLAGS-tst-auditmod6b.c += $(AVX-CFLAGS)
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CFLAGS-tst-auditmod6c.c += $(AVX-CFLAGS)
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CFLAGS-tst-auditmod7b.c += $(AVX-CFLAGS)
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CFLAGS-tst-avx-aux.c += $(AVX-CFLAGS)
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CFLAGS-tst-avxmod.c += $(AVX-CFLAGS)
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ifeq (yes,$(config-cflags-avx512))
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AVX512-CFLAGS = -mavx512f
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CFLAGS-tst-audit10-aux.c += $(AVX512-CFLAGS)
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CFLAGS-tst-auditmod10a.c += $(AVX512-CFLAGS)
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CFLAGS-tst-auditmod10b.c += $(AVX512-CFLAGS)
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CFLAGS-tst-avx512-aux.c += $(AVX512-CFLAGS)
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CFLAGS-tst-avx512mod.c += $(AVX512-CFLAGS)
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endif
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endif
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ifeq ($(subdir),csu)
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gen-as-const-headers += tlsdesc.sym rtld-offsets.sym
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endif
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$(objpfx)x86_64/tst-x86_64mod-1.os: $(objpfx)tst-x86_64mod-1.os
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$(make-target-directory)
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rm -f $@
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ln $< $@
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do-tests-clean common-mostlyclean: tst-x86_64-1-clean
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.PHONY: tst-x86_64-1-clean
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tst-x86_64-1-clean:
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-rm -rf $(objpfx)x86_64
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$(objpfx)x86_64/tst-platformmod-2.os: $(objpfx)tst-platformmod-2.os
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$(make-target-directory)
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rm -f $@
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ln $< $@
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