efbbd9c33a
Store ISA level in the portion of the unused upper 32 bits of the hwcaps field in cache and the unused pad field in aux cache. ISA level is stored and checked only for shared objects in glibc-hwcaps subdirectories. The shared objects in the default directories aren't checked since there are no fallbacks for these shared objects. Tested on x86-64-v2, x86-64-v3 and x86-64-v4 machines with --disable-hardcoded-path-in-tests and --enable-hardcoded-path-in-tests.
67 lines
2 KiB
Makefile
67 lines
2 KiB
Makefile
ifeq ($(subdir),misc)
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sysdep_routines += ioperm iopl
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endif
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ifeq ($(subdir),stdlib)
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sysdep_routines += __start_context
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endif
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ifeq ($(subdir),csu)
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gen-as-const-headers += ucontext_i.sym
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endif
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ifeq ($(subdir),misc)
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gen-as-const-headers += sigaltstack-offsets.sym
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endif
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ifeq ($(subdir),elf)
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ifeq (yes,$(enable-x86-isa-level))
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tests += \
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tst-glibc-hwcaps-2
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ifeq (no,$(build-hardcoded-path-in-tests))
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# This is an ld.so.cache test, and RPATH/RUNPATH in the executable
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# interferes with its test objectives.
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tests-container += \
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tst-glibc-hwcaps-2-cache
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endif
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modules-names += \
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libx86-64-isa-level-1 \
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libx86-64-isa-level-2 \
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libx86-64-isa-level-3 \
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libx86-64-isa-level-4
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$(objpfx)tst-glibc-hwcaps-2: $(objpfx)libx86-64-isa-level.so
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$(objpfx)tst-glibc-hwcaps-2.out: \
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$(objpfx)glibc-hwcaps/x86-64-v2/libx86-64-isa-level.so \
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$(objpfx)glibc-hwcaps/x86-64-v4/libx86-64-isa-level.so \
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$(objpfx)glibc-hwcaps/x86-64-v3/libx86-64-isa-level.so
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$(objpfx)glibc-hwcaps/x86-64-v2/libx86-64-isa-level.so: \
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$(objpfx)libx86-64-isa-level-2.so
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$(make-target-directory)
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cp $< $@
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$(objpfx)glibc-hwcaps/x86-64-v3/libx86-64-isa-level.so: \
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$(objpfx)libx86-64-isa-level-3.so
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$(make-target-directory)
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cp $< $@
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$(objpfx)glibc-hwcaps/x86-64-v4/libx86-64-isa-level.so: \
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$(objpfx)libx86-64-isa-level-4.so
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$(make-target-directory)
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cp $< $@
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CFLAGS-libx86-64-isa-level-1.os += -march=x86-64
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CFLAGS-libx86-64-isa-level-2.os += -march=x86-64
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CFLAGS-libx86-64-isa-level-3.os += -march=x86-64
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CFLAGS-libx86-64-isa-level-4.os += -march=x86-64
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# The test modules are parameterized by preprocessor macros.
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LDFLAGS-libx86-64-isa-level-1.so += -Wl,-soname,libx86-64-isa-level.so
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LDFLAGS-libx86-64-isa-level-4.so += -Wl,-soname,libx86-64-isa-level.so
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$(objpfx)libx86-64-isa-level%.os: $(..)/sysdeps/unix/sysv/linux/x86_64/x86-64-isa-level-VALUE.c
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$(compile-command.c) -DVALUE=$(lastword $(subst -, ,$*)) \
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-DISA_LEVEL="(1 << ($(lastword $(subst -, ,$*)) - 1))"
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$(objpfx)libx86-64-isa-level.so: $(objpfx)libx86-64-isa-level-1.so
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cp $< $@
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endif
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endif # $(subdir) == elf
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