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21841f0d56
This patch enables the option to influence hwcaps used by PowerPC.
The environment variable, GLIBC_TUNABLES=glibc.cpu.hwcaps=-xxx,yyy,-zzz....,
can be used to enable CPU/ARCH feature yyy, disable CPU/ARCH feature xxx
and zzz, where the feature name is case-sensitive and has to match the ones
mentioned in the file{sysdeps/powerpc/dl-procinfo.c}.
Note that the hwcap tunables only used in the IFUNC selection.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
41 lines
992 B
Makefile
41 lines
992 B
Makefile
abi-variants := 32 64-v1 64-v2
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abi-32-condition := __WORDSIZE == 32
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abi-64-v1-condition := __WORDSIZE == 64 && _CALL_ELF != 2
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abi-64-v2-condition := __WORDSIZE == 64 && _CALL_ELF == 2
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ifeq ($(subdir),rt)
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librt-routines += rt-sysdep
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librt-shared-only-routines += rt-sysdep
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endif
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ifeq ($(subdir),stdlib)
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gen-as-const-headers += ucontext_i.sym
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endif
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ifeq ($(subdir),elf)
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# Otherwise tst-tls-dlinfo fails due to tst-tlsmod2.so using static tls.
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ifeq ($(have-tls-get-addr-optimize),yes)
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LDFLAGS-tst-tlsmod2.so += -Wl,--no-tls-get-addr-optimize
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endif
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endif
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ifeq ($(subdir),misc)
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sysdep_headers += bits/ppc.h
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sysdep_routines += get_timebase_freq
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tests-static += test-gettimebasefreq-static
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tests += \
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$(tests-static) \
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test-gettimebasefreq \
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test-powerpc-linux-sysconf \
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tst-hwcap-tunables \
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# tests
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tst-hwcap-tunables-ARGS = -- $(host-test-program-cmd)
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endif
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ifeq ($(subdir),csu)
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# to relocate stinfo->main
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CPPFLAGS-libc-start.o += -I../elf
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CPPFLAGS-libc-start.op += -I../elf
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endif
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