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https://sourceware.org/git/glibc.git
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0aac205a81
Compiler generates the following instruction sequence for GNU2 dynamic TLS access: leaq tls_var@TLSDESC(%rip), %rax call *tls_var@TLSCALL(%rax) or leal tls_var@TLSDESC(%ebx), %eax call *tls_var@TLSCALL(%eax) CALL instruction is transparent to compiler which assumes all registers, except for EFLAGS and RAX/EAX, are unchanged after CALL. When _dl_tlsdesc_dynamic is called, it calls __tls_get_addr on the slow path. __tls_get_addr is a normal function which doesn't preserve any caller-saved registers. _dl_tlsdesc_dynamic saved and restored integer caller-saved registers, but didn't preserve any other caller-saved registers. Add _dl_tlsdesc_dynamic IFUNC functions for FNSAVE, FXSAVE, XSAVE and XSAVEC to save and restore all caller-saved registers. This fixes BZ #31372. Add GLRO(dl_x86_64_runtime_resolve) with GLRO(dl_x86_tlsdesc_dynamic) to optimize elf_machine_runtime_setup. Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
154 lines
3.9 KiB
Makefile
154 lines
3.9 KiB
Makefile
ifeq ($(subdir),csu)
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gen-as-const-headers += cpu-features-offsets.sym features-offsets.sym
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endif
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ifeq ($(subdir),elf)
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sysdep_routines += get-cpuid-feature-leaf
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sysdep-dl-routines += dl-get-cpu-features
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sysdep_headers += \
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bits/platform/features.h \
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bits/platform/x86.h \
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sys/platform/x86.h \
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# sysdep_headers
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CFLAGS-dl-get-cpu-features.os += $(rtld-early-cflags)
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CFLAGS-get-cpuid-feature-leaf.o += $(no-stack-protector)
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tests += \
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tst-cpu-features-cpuinfo \
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tst-cpu-features-cpuinfo-static \
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tst-cpu-features-supports \
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tst-cpu-features-supports-static \
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tst-get-cpu-features \
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tst-get-cpu-features-static \
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tst-hwcap-tunables \
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# tests
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tests-static += \
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tst-cpu-features-cpuinfo-static \
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tst-cpu-features-supports-static \
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tst-get-cpu-features-static \
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# tests-static
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ifeq (yes,$(have-ifunc))
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ifeq (yes,$(have-gcc-ifunc))
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tests += \
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tst-ifunc-isa-1 \
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tst-ifunc-isa-1-static \
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# tests
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tests-static += \
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tst-ifunc-isa-1-static \
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# tests-static
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test-xfail-tst-ifunc-isa-1 = $(with-lld)
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test-xfail-tst-ifunc-isa-1-static = $(with-lld)
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tests += \
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tst-ifunc-isa-2 \
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tst-ifunc-isa-2-static \
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# tests
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tests-static += \
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tst-ifunc-isa-2-static \
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# tests-static
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test-xfail-tst-ifunc-isa-2 = $(with-lld)
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test-xfail-tst-ifunc-isa-2-static = $(with-lld)
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endif
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endif
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ifeq (yes,$(enable-x86-isa-level))
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tests += \
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tst-isa-level-1 \
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# tests
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modules-names += \
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tst-isa-level-mod-1-baseline \
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tst-isa-level-mod-1-v2 \
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tst-isa-level-mod-1-v3 \
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tst-isa-level-mod-1-v4 \
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# modules-names
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# X86 ISA level baseline
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CFLAGS-tst-isa-level-mod-1-baseline.c += -DINCLUDE_X86_ISA_LEVEL \
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-DISA_LEVEL=0x1 \
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-march=x86-64
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# X86 ISA level v2
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CFLAGS-tst-isa-level-mod-1-v2.c += -DINCLUDE_X86_ISA_LEVEL \
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-DISA_LEVEL=0x3 \
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-march=x86-64
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# X86 ISA level v3
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CFLAGS-tst-isa-level-mod-1-v3.c += -DINCLUDE_X86_ISA_LEVEL \
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-DISA_LEVEL=0x7 \
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-march=x86-64
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# X86 ISA level v4
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CFLAGS-tst-isa-level-mod-1-v4.c += -DINCLUDE_X86_ISA_LEVEL \
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-DISA_LEVEL=0xf \
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-march=x86-64
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$(objpfx)tst-isa-level-1.out: $(objpfx)tst-isa-level-mod-1-baseline.so \
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$(objpfx)tst-isa-level-mod-1-v2.so \
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$(objpfx)tst-isa-level-mod-1-v3.so \
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$(objpfx)tst-isa-level-mod-1-v4.so
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endif
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tst-ifunc-isa-2-ENV = GLIBC_TUNABLES=glibc.cpu.hwcaps=-SSE4_2,-AVX,-AVX2,-AVX512F
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tst-ifunc-isa-2-static-ENV = $(tst-ifunc-isa-2-ENV)
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tst-hwcap-tunables-ARGS = -- $(host-test-program-cmd)
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CFLAGS-tst-gnu2-tls2.c += -msse
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CFLAGS-tst-gnu2-tls2mod0.c += -msse2 -mtune=haswell
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CFLAGS-tst-gnu2-tls2mod1.c += -msse2 -mtune=haswell
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CFLAGS-tst-gnu2-tls2mod2.c += -msse2 -mtune=haswell
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endif
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ifeq ($(subdir),math)
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tests += \
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tst-ldbl-nonnormal-printf \
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# tests
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endif # $(subdir) == math
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ifeq ($(subdir),setjmp)
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gen-as-const-headers += jmp_buf-ssp.sym
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sysdep_routines += __longjmp_cancel
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endif
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ifeq ($(subdir),string)
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sysdep_routines += cacheinfo
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tests += \
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tst-memchr-rtm \
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tst-memcmp-rtm \
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tst-memmove-rtm \
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tst-memrchr-rtm \
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tst-memset-rtm \
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tst-strcasecmp-rtm \
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tst-strchr-rtm \
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tst-strcmp-rtm \
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tst-strcpy-rtm \
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tst-strlen-rtm \
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tst-strncasecmp-rtm \
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tst-strncmp-rtm \
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tst-strrchr-rtm \
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tst-wcscmp-rtm \
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tst-wcsncmp-rtm \
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# tests
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CFLAGS-tst-memchr-rtm.c += -mrtm
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CFLAGS-tst-memcmp-rtm.c += -mrtm
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CFLAGS-tst-memmove-rtm.c += -mrtm
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CFLAGS-tst-memrchr-rtm.c += -mrtm
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CFLAGS-tst-memset-rtm.c += -mrtm
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CFLAGS-tst-strcasecmp-rtm.c += -mrtm
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CFLAGS-tst-strchr-rtm.c += -mrtm
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CFLAGS-tst-strcmp-rtm.c += -mrtm
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CFLAGS-tst-strcpy-rtm.c += -mrtm
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CFLAGS-tst-strlen-rtm.c += -mrtm
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CFLAGS-tst-strncasecmp-rtm.c += -mrtm -Wno-error
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CFLAGS-tst-strncmp-rtm.c += -mrtm -Wno-error
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CFLAGS-tst-strrchr-rtm.c += -mrtm
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CFLAGS-tst-wcscmp-rtm.c += -mrtm
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CFLAGS-tst-wcsncmp-rtm.c += -mrtm -Wno-error
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endif
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ifeq ($(subdir),posix)
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tests += \
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tst-sysconf-cache-linesize \
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tst-sysconf-cache-linesize-static \
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# tests
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tests-static += \
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tst-sysconf-cache-linesize-static \
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# tests-static
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endif
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