diff options
Diffstat (limited to 'arch/powerpc/kernel/vdso/Makefile')
| -rw-r--r-- | arch/powerpc/kernel/vdso/Makefile | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/arch/powerpc/kernel/vdso/Makefile b/arch/powerpc/kernel/vdso/Makefile index 096b0bf1335f..1b93655c2857 100644 --- a/arch/powerpc/kernel/vdso/Makefile +++ b/arch/powerpc/kernel/vdso/Makefile @@ -2,7 +2,7 @@ # List of files in the vdso, has to be asm only for now -ARCH_REL_TYPE_ABS := R_PPC_JUMP_SLOT|R_PPC_GLOB_DAT|R_PPC_ADDR32|R_PPC_ADDR24|R_PPC_ADDR16|R_PPC_ADDR16_LO|R_PPC_ADDR16_HI|R_PPC_ADDR16_HA|R_PPC_ADDR14|R_PPC_ADDR14_BRTAKEN|R_PPC_ADDR14_BRNTAKEN|R_PPC_REL24 +# Include the generic Makefile to check the built vdso. include $(srctree)/lib/vdso/Makefile obj-vdso32 = sigtramp32-32.o gettimeofday-32.o datapage-32.o cacheflush-32.o note-32.o getcpu-32.o @@ -16,6 +16,11 @@ ifneq ($(c-gettimeofday-y),) CFLAGS_vgettimeofday-32.o += -ffreestanding -fasynchronous-unwind-tables CFLAGS_REMOVE_vgettimeofday-32.o = $(CC_FLAGS_FTRACE) CFLAGS_REMOVE_vgettimeofday-32.o += -mcmodel=medium -mabi=elfv1 -mabi=elfv2 -mcall-aixdesc + # This flag is supported by clang for 64-bit but not 32-bit so it will cause + # an unused command line flag warning for this file. + ifdef CONFIG_CC_IS_CLANG + CFLAGS_REMOVE_vgettimeofday-32.o += -fno-stack-clash-protection + endif CFLAGS_vgettimeofday-64.o += -include $(c-gettimeofday-y) CFLAGS_vgettimeofday-64.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) CFLAGS_vgettimeofday-64.o += $(call cc-option, -fno-stack-protector) @@ -46,20 +51,27 @@ GCOV_PROFILE := n KCOV_INSTRUMENT := n UBSAN_SANITIZE := n KASAN_SANITIZE := n +KCSAN_SANITIZE := n -ccflags-y := -shared -fno-common -fno-builtin -nostdlib -Wl,--hash-style=both -ccflags-$(CONFIG_LD_IS_LLD) += $(call cc-option,--ld-path=$(LD),-fuse-ld=lld) +ccflags-y := -fno-common -fno-builtin +ldflags-y := -Wl,--hash-style=both -nostdlib -shared -z noexecstack $(CLANG_FLAGS) +ldflags-$(CONFIG_LD_IS_LLD) += $(call cc-option,--ld-path=$(LD),-fuse-ld=lld) +ldflags-$(CONFIG_LD_ORPHAN_WARN) += -Wl,--orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL) -CC32FLAGS := -Wl,-soname=linux-vdso32.so.1 -m32 -AS32FLAGS := -D__VDSO32__ -s +# Filter flags that clang will warn are unused for linking +ldflags-y += $(filter-out $(CC_AUTO_VAR_INIT_ZERO_ENABLER) $(CC_FLAGS_FTRACE) -Wa$(comma)%, $(KBUILD_CFLAGS)) -CC64FLAGS := -Wl,-soname=linux-vdso64.so.1 -AS64FLAGS := -D__VDSO64__ -s +CC32FLAGS := -m32 +LD32FLAGS := -Wl,-soname=linux-vdso32.so.1 +AS32FLAGS := -D__VDSO32__ + +LD64FLAGS := -Wl,-soname=linux-vdso64.so.1 +AS64FLAGS := -D__VDSO64__ targets += vdso32.lds CPPFLAGS_vdso32.lds += -P -C -Upowerpc targets += vdso64.lds -CPPFLAGS_vdso64.lds += -P -C -U$(ARCH) +CPPFLAGS_vdso64.lds += -P -C # link rule for the .so file, .lds has to be first $(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) $(obj)/vgettimeofday-32.o FORCE @@ -92,13 +104,15 @@ include/generated/vdso64-offsets.h: $(obj)/vdso64.so.dbg FORCE # actual build commands quiet_cmd_vdso32ld_and_check = VDSO32L $@ - cmd_vdso32ld_and_check = $(VDSOCC) $(c_flags) $(CC32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) ; $(cmd_vdso_check) + cmd_vdso32ld_and_check = $(VDSOCC) $(ldflags-y) $(CC32FLAGS) $(LD32FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^); $(cmd_vdso_check) quiet_cmd_vdso32as = VDSO32A $@ cmd_vdso32as = $(VDSOCC) $(a_flags) $(CC32FLAGS) $(AS32FLAGS) -c -o $@ $< quiet_cmd_vdso32cc = VDSO32C $@ cmd_vdso32cc = $(VDSOCC) $(c_flags) $(CC32FLAGS) -c -o $@ $< quiet_cmd_vdso64ld_and_check = VDSO64L $@ - cmd_vdso64ld_and_check = $(VDSOCC) $(c_flags) $(CC64FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^) ; $(cmd_vdso_check) + cmd_vdso64ld_and_check = $(VDSOCC) $(ldflags-y) $(LD64FLAGS) -o $@ -Wl,-T$(filter %.lds,$^) $(filter %.o,$^); $(cmd_vdso_check) quiet_cmd_vdso64as = VDSO64A $@ - cmd_vdso64as = $(VDSOCC) $(a_flags) $(CC64FLAGS) $(AS64FLAGS) -c -o $@ $< + cmd_vdso64as = $(VDSOCC) $(a_flags) $(AS64FLAGS) -c -o $@ $< + +OBJECT_FILES_NON_STANDARD := y |