diff options
Diffstat (limited to 'arch/loongarch/Makefile')
| -rw-r--r-- | arch/loongarch/Makefile | 49 |
1 files changed, 40 insertions, 9 deletions
diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index 983aa2b1629a..b0703a4e02a2 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -26,6 +26,21 @@ endif 32bit-emul = elf32loongarch 64bit-emul = elf64loongarch +CC_FLAGS_FPU := -mfpu=64 +CC_FLAGS_NO_FPU := -msoft-float + +ifdef CONFIG_UNWINDER_ORC +orc_hash_h := arch/$(SRCARCH)/include/generated/asm/orc_hash.h +orc_hash_sh := $(srctree)/scripts/orc_hash.sh +targets += $(orc_hash_h) +quiet_cmd_orc_hash = GEN $@ + cmd_orc_hash = mkdir -p $(dir $@); \ + $(CONFIG_SHELL) $(orc_hash_sh) < $< > $@ +$(orc_hash_h): $(srctree)/arch/loongarch/include/asm/orc_types.h $(orc_hash_sh) FORCE + $(call if_changed,orc_hash) +archprepare: $(orc_hash_h) +endif + ifdef CONFIG_DYNAMIC_FTRACE KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY CC_FLAGS_FTRACE := -fpatchable-function-entry=2 @@ -44,10 +59,10 @@ endif ifdef CONFIG_64BIT ld-emul = $(64bit-emul) -cflags-y += -mabi=lp64s +cflags-y += -mabi=lp64s -mcmodel=normal endif -cflags-y += -pipe -msoft-float +cflags-y += -pipe $(CC_FLAGS_NO_FPU) LDFLAGS_vmlinux += -static -n -nostdlib # When the assembler supports explicit relocation hint, we must use it. @@ -72,8 +87,6 @@ KBUILD_CFLAGS_KERNEL += $(call cc-option,-mdirect-extern-access) KBUILD_CFLAGS_KERNEL += $(call cc-option,-fdirect-access-external-data) KBUILD_AFLAGS_MODULE += $(call cc-option,-fno-direct-access-external-data) KBUILD_CFLAGS_MODULE += $(call cc-option,-fno-direct-access-external-data) -KBUILD_AFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) -KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) else cflags-y += $(call cc-option,-mno-explicit-relocs) KBUILD_AFLAGS_KERNEL += -Wa,-mla-global-with-pcrel @@ -82,7 +95,22 @@ KBUILD_AFLAGS_MODULE += -Wa,-mla-global-with-abs KBUILD_CFLAGS_MODULE += -fplt -Wa,-mla-global-with-abs,-mla-local-with-abs endif -KBUILD_RUSTFLAGS_MODULE += -Crelocation-model=pic +KBUILD_AFLAGS += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) +KBUILD_CFLAGS += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax) +KBUILD_AFLAGS += $(call cc-option,-mthin-add-sub) $(call cc-option,-Wa$(comma)-mthin-add-sub) +KBUILD_CFLAGS += $(call cc-option,-mthin-add-sub) $(call cc-option,-Wa$(comma)-mthin-add-sub) + +ifdef CONFIG_OBJTOOL +ifdef CONFIG_CC_HAS_ANNOTATE_TABLEJUMP +KBUILD_CFLAGS += -mannotate-tablejump +else +KBUILD_CFLAGS += -fno-jump-tables # keep compatibility with older compilers +endif +endif + +KBUILD_RUSTFLAGS += --target=loongarch64-unknown-none-softfloat -Ccode-model=small +KBUILD_RUSTFLAGS_KERNEL += -Zdirect-access-external-data=yes +KBUILD_RUSTFLAGS_MODULE += -Zdirect-access-external-data=no ifeq ($(CONFIG_RELOCATABLE),y) KBUILD_CFLAGS_KERNEL += -fPIE @@ -153,11 +181,14 @@ vmlinux.elf vmlinux.efi vmlinuz.efi: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(bootvars-y) $(boot)/$@ install: - $(Q)install -D -m 755 $(KBUILD_IMAGE) $(INSTALL_PATH)/$(image-name-y)-$(KERNELRELEASE) - $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE) - $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE) + $(call cmd,install) define archhelp - echo ' install - install kernel into $(INSTALL_PATH)' + echo ' vmlinux.elf - Uncompressed ELF kernel image (arch/loongarch/boot/vmlinux.elf)' + echo ' vmlinux.efi - Uncompressed EFI kernel image (arch/loongarch/boot/vmlinux.efi)' + echo ' vmlinuz.efi - GZIP/ZSTD-compressed EFI kernel image (arch/loongarch/boot/vmlinuz.efi)' + echo ' Default when CONFIG_EFI_ZBOOT=y' + echo ' install - Install kernel using (your) ~/bin/$(INSTALLKERNEL) or' + echo ' (distribution) /sbin/$(INSTALLKERNEL) or install.sh to $$(INSTALL_PATH)' echo endef |