mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 13:45:13 +07:00
893ab00439
Some Makefiles already pass -fno-stack-protector unconditionally. For example, arch/arm64/kernel/vdso/Makefile, arch/x86/xen/Makefile. No problem report so far about hard-coding this option. So, we can assume all supported compilers know -fno-stack-protector. GCC 4.8 and Clang support this option (https://godbolt.org/z/_HDGzN) Get rid of cc-option from -fno-stack-protector. Remove CONFIG_CC_HAS_STACKPROTECTOR_NONE, which is always 'y'. Note: arch/mips/vdso/Makefile adds -fno-stack-protector twice, first unconditionally, and second conditionally. I removed the second one. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
73 lines
2.1 KiB
Makefile
73 lines
2.1 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
#
|
|
# Makefile for x86 specific library files.
|
|
#
|
|
|
|
# Produces uninteresting flaky coverage.
|
|
KCOV_INSTRUMENT_delay.o := n
|
|
|
|
# KCSAN uses udelay for introducing watchpoint delay; avoid recursion.
|
|
KCSAN_SANITIZE_delay.o := n
|
|
ifdef CONFIG_KCSAN
|
|
# In case KCSAN+lockdep+ftrace are enabled, disable ftrace for delay.o to avoid
|
|
# lockdep -> [other libs] -> KCSAN -> udelay -> ftrace -> lockdep recursion.
|
|
CFLAGS_REMOVE_delay.o = $(CC_FLAGS_FTRACE)
|
|
endif
|
|
|
|
# Early boot use of cmdline; don't instrument it
|
|
ifdef CONFIG_AMD_MEM_ENCRYPT
|
|
KCOV_INSTRUMENT_cmdline.o := n
|
|
KASAN_SANITIZE_cmdline.o := n
|
|
KCSAN_SANITIZE_cmdline.o := n
|
|
|
|
ifdef CONFIG_FUNCTION_TRACER
|
|
CFLAGS_REMOVE_cmdline.o = -pg
|
|
endif
|
|
|
|
CFLAGS_cmdline.o := -fno-stack-protector
|
|
endif
|
|
|
|
inat_tables_script = $(srctree)/arch/x86/tools/gen-insn-attr-x86.awk
|
|
inat_tables_maps = $(srctree)/arch/x86/lib/x86-opcode-map.txt
|
|
quiet_cmd_inat_tables = GEN $@
|
|
cmd_inat_tables = $(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@
|
|
|
|
$(obj)/inat-tables.c: $(inat_tables_script) $(inat_tables_maps)
|
|
$(call cmd,inat_tables)
|
|
|
|
$(obj)/inat.o: $(obj)/inat-tables.c
|
|
|
|
clean-files := inat-tables.c
|
|
|
|
obj-$(CONFIG_SMP) += msr-smp.o cache-smp.o
|
|
|
|
lib-y := delay.o misc.o cmdline.o cpu.o
|
|
lib-y += usercopy_$(BITS).o usercopy.o getuser.o putuser.o
|
|
lib-y += memcpy_$(BITS).o
|
|
lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o insn-eval.o
|
|
lib-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
|
|
lib-$(CONFIG_FUNCTION_ERROR_INJECTION) += error-inject.o
|
|
lib-$(CONFIG_RETPOLINE) += retpoline.o
|
|
|
|
obj-y += msr.o msr-reg.o msr-reg-export.o hweight.o
|
|
obj-y += iomem.o
|
|
|
|
ifeq ($(CONFIG_X86_32),y)
|
|
obj-y += atomic64_32.o
|
|
lib-y += atomic64_cx8_32.o
|
|
lib-y += checksum_32.o
|
|
lib-y += strstr_32.o
|
|
lib-y += string_32.o
|
|
ifneq ($(CONFIG_X86_CMPXCHG64),y)
|
|
lib-y += cmpxchg8b_emu.o atomic64_386_32.o
|
|
endif
|
|
lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
|
|
else
|
|
obj-y += iomap_copy_64.o
|
|
lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o
|
|
lib-y += clear_page_64.o copy_page_64.o
|
|
lib-y += memmove_64.o memset_64.o
|
|
lib-y += copy_user_64.o
|
|
lib-y += cmpxchg16b_emu.o
|
|
endif
|