Lines Matching +full:no +full:- +full:unaligned +full:- +full:direct +full:- +full:access
1 # SPDX-License-Identifier: GPL-2.0
4 # Copyright (C) 2020-2022 Loongson Technology Corporation Limited
11 image-name-y := vmlinux
12 image-name-$(CONFIG_EFI_ZBOOT) := vmlinuz
17 KBUILD_IMAGE := $(boot)/$(image-name-y).efi
23 64bit-tool-archpref = loongarch64
24 32bit-bfd = elf32-loongarch
25 64bit-bfd = elf64-loongarch
26 32bit-emul = elf32loongarch
27 64bit-emul = elf64loongarch
30 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY
31 CC_FLAGS_FTRACE := -fpatchable-function-entry=2
35 tool-archpref = $(64bit-tool-archpref)
41 …OSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(too…
46 ld-emul = $(64bit-emul)
47 cflags-y += -mabi=lp64s
50 cflags-y += -pipe -msoft-float
51 LDFLAGS_vmlinux += -static -n -nostdlib
54 # GCC may have -mexplicit-relocs off by default if it was built with an old
66 # Also, -mdirect-extern-access is useful in case of building with explicit
70 cflags-y += $(call cc-option,-mexplicit-relocs)
71 KBUILD_CFLAGS_KERNEL += $(call cc-option,-mdirect-extern-access)
72 KBUILD_CFLAGS_KERNEL += $(call cc-option,-fdirect-access-external-data)
73 KBUILD_AFLAGS_MODULE += $(call cc-option,-fno-direct-access-external-data)
74 KBUILD_CFLAGS_MODULE += $(call cc-option,-fno-direct-access-external-data)
75 KBUILD_AFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax)
76 KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-relax) $(call cc-option,-Wa$(comma)-mno-relax)
78 cflags-y += $(call cc-option,-mno-explicit-relocs)
79 KBUILD_AFLAGS_KERNEL += -Wa,-mla-global-with-pcrel
80 KBUILD_CFLAGS_KERNEL += -Wa,-mla-global-with-pcrel
81 KBUILD_AFLAGS_MODULE += -Wa,-mla-global-with-abs
82 KBUILD_CFLAGS_MODULE += -fplt -Wa,-mla-global-with-abs,-mla-local-with-abs
85 KBUILD_RUSTFLAGS_MODULE += -Crelocation-model=pic
88 KBUILD_CFLAGS_KERNEL += -fPIE
89 KBUILD_RUSTFLAGS_KERNEL += -Crelocation-model=pie
90 LDFLAGS_vmlinux += -static -pie --no-dynamic-linker -z notext $(call ld-option, --apply-dynamic-r…
93 cflags-y += $(call cc-option, -mno-check-zero-division)
96 cflags-y += -fno-builtin-memcpy -fno-builtin-memmove -fno-builtin-memset
99 load-y = 0x9000000000200000
100 bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y)
102 drivers-$(CONFIG_PCI) += arch/loongarch/pci/
104 KBUILD_AFLAGS += $(cflags-y)
105 KBUILD_CFLAGS += $(cflags-y)
106 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
110 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
113 # Don't emit unaligned accesses.
114 # Not all LoongArch cores support unaligned access, and as kernel we can't
116 KBUILD_CFLAGS += $(call cc-option,-mstrict-align)
118 # Optimise for performance on hardware supports unaligned access.
119 KBUILD_CFLAGS += $(call cc-option,-mno-strict-align)
122 KBUILD_CFLAGS += -isystem $(shell $(CC) -print-file-name=include)
124 KBUILD_LDFLAGS += -m $(ld-emul)
126 ifdef need-compiler
127 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
128 grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
129 sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
132 libs-y += arch/loongarch/lib/
133 libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
135 drivers-y += arch/loongarch/crypto/
138 drivers-$(CONFIG_PM) += arch/loongarch/power/
143 $(Q)$(MAKE) $(build)=arch/loongarch/vdso include/generated/vdso-offsets.h
146 vdso-install-y += arch/loongarch/vdso/vdso.so.dbg
153 $(Q)$(MAKE) $(build)=$(boot) $(bootvars-y) $(boot)/$@
156 $(Q)install -D -m 755 $(KBUILD_IMAGE) $(INSTALL_PATH)/$(image-name-y)-$(KERNELRELEASE)
157 $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
158 $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
161 echo ' install - install kernel into $(INSTALL_PATH)'