diff options
| -rw-r--r-- | arch/mips/Makefile | 208 |
1 files changed, 39 insertions, 169 deletions
diff --git a/arch/mips/Makefile b/arch/mips/Makefile index c626dd5942f..9a69e0f0ab7 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -12,10 +12,6 @@ # for "archclean" cleaning up for this architecture. # -as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \ - -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \ - else echo "$(2)"; fi ;) - cflags-y := # @@ -38,12 +34,10 @@ else endif ifdef CONFIG_32BIT -gcc-abi = 32 tool-prefix = $(32bit-tool-prefix) UTS_MACHINE := mips endif ifdef CONFIG_64BIT -gcc-abi = 64 tool-prefix = $(64bit-tool-prefix) UTS_MACHINE := mips64 endif @@ -52,40 +46,28 @@ ifdef CONFIG_CROSSCOMPILE CROSS_COMPILE := $(tool-prefix) endif -CHECKFLAGS-y += -D__linux__ -D__mips__ \ - -D_MIPS_SZINT=32 \ - -D_ABIO32=1 \ - -D_ABIN32=2 \ - -D_ABI64=3 -CHECKFLAGS-$(CONFIG_32BIT) += -D_MIPS_SIM=_ABIO32 \ - -D_MIPS_SZLONG=32 \ - -D_MIPS_SZPTR=32 \ - -D__PTRDIFF_TYPE__=int -CHECKFLAGS-$(CONFIG_64BIT) += -m64 -D_MIPS_SIM=_ABI64 \ - -D_MIPS_SZLONG=64 \ - -D_MIPS_SZPTR=64 \ - -D__PTRDIFF_TYPE__="long int" -CHECKFLAGS-$(CONFIG_CPU_BIG_ENDIAN) += -D__MIPSEB__ -CHECKFLAGS-$(CONFIG_CPU_LITTLE_ENDIAN) += -D__MIPSEL__ - -CHECKFLAGS = $(CHECKFLAGS-y) - ifdef CONFIG_32BIT -gas-abi = 32 ld-emul = $(32bit-emul) vmlinux-32 = vmlinux vmlinux-64 = vmlinux.64 + +cflags-y += -mabi=32 endif ifdef CONFIG_64BIT -gas-abi = 64 ld-emul = $(64bit-emul) vmlinux-32 = vmlinux.32 vmlinux-64 = vmlinux +cflags-y += -mabi=64 +ifdef CONFIG_BUILD_ELF64 cflags-y += $(call cc-option,-mno-explicit-relocs) +else +cflags-y += $(call cc-option,-msym32) +endif endif + # # GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel # code since it only slows down the whole thing. At some point we might make @@ -107,162 +89,44 @@ MODFLAGS += -mlong-calls # carefully avoid to add it redundantly because gcc 3.3/3.4 complains # when fed the toolchain default! # -cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB) -cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL) +cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB -D__MIPSEB__) +cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL -D__MIPSEL__) cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \ -fno-omit-frame-pointer # -# Use: $(call set_gccflags,<cpu0>,<isa0>,<cpu1>,<isa1>,<isa2>) -# -# <cpu0>,<isa0> -- preferred CPU and ISA designations (may require -# recent tools) -# <cpu1>,<isa1> -- fallback CPU and ISA designations (have to work -# with up to the oldest supported tools) -# <isa2> -- an ISA designation used as an ABI selector for -# gcc versions that do not support "-mabi=32" -# (depending on the CPU type, either "mips1" or -# "mips2") -# -set_gccflags = $(shell \ -while :; do \ - cpu=$(1); isa=-$(2); \ - for gcc_opt in -march= -mcpu=; do \ - $(CC) $$gcc_opt$$cpu $$isa -S -o /dev/null \ - -xc /dev/null > /dev/null 2>&1 && \ - break 2; \ - done; \ - cpu=$(3); isa=-$(4); \ - for gcc_opt in -march= -mcpu=; do \ - $(CC) $$gcc_opt$$cpu $$isa -S -o /dev/null \ - -xc /dev/null > /dev/null 2>&1 && \ - break 2; \ - done; \ - break; \ -done; \ -gcc_abi=-mabi=$(gcc-abi); gcc_cpu=$$cpu; \ -if $(CC) $$gcc_abi -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then \ - gcc_isa=$$isa; \ -else \ - gcc_abi=; gcc_isa=-$(5); \ -fi; \ -gas_abi=-Wa,-$(gcc-abi); gas_cpu=$$cpu; gas_isa=-Wa,$$isa; \ -while :; do \ - for gas_opt in -Wa,-march= -Wa,-mcpu=; do \ - $(CC) $$gas_abi $$gas_opt$$cpu $$gas_isa -Wa,-Z -c \ - -o /dev/null -xassembler /dev/null > /dev/null 2>&1 && \ - break 2; \ - done; \ - gas_abi=; gas_opt=; gas_cpu=; gas_isa=; \ - break; \ -done; \ -if test "$(gcc-abi)" != "$(gas-abi)"; then \ - gas_abi="-Wa,-$(gas-abi) -Wa,-mgp$(gcc-abi)"; \ -fi; \ -if test "$$gcc_opt" = -march= && test -n "$$gcc_abi"; then \ - $(CC) $$gcc_abi $$gcc_opt$$gcc_cpu -S -o /dev/null \ - -xc /dev/null > /dev/null 2>&1 && \ - gcc_isa=; \ -fi; \ -echo $$gcc_abi $$gcc_opt$$gcc_cpu $$gcc_isa $$gas_abi $$gas_opt$$gas_cpu $$gas_isa) - -# # CPU-dependent compiler/assembler options for optimization. # -cflags-$(CONFIG_CPU_R3000) += \ - $(call set_gccflags,r3000,mips1,r3000,mips1,mips1) -CHECKFLAGS-$(CONFIG_CPU_R3000) += -D_MIPS_ISA=_MIPS_ISA_MIPS1 - -cflags-$(CONFIG_CPU_TX39XX) += \ - $(call set_gccflags,r3900,mips1,r3000,mips1,mips1) -CHECKFLAGS-$(CONFIG_CPU_TX39XX) += -D_MIPS_ISA=_MIPS_ISA_MIPS1 - -cflags-$(CONFIG_CPU_R6000) += \ - $(call set_gccflags,r6000,mips2,r6000,mips2,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_R6000) += -D_MIPS_ISA=_MIPS_ISA_MIPS2 - -cflags-$(CONFIG_CPU_R4300) += \ - $(call set_gccflags,r4300,mips3,r4300,mips3,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_R4300) += -D_MIPS_ISA=_MIPS_ISA_MIPS3 - -cflags-$(CONFIG_CPU_VR41XX) += \ - $(call set_gccflags,r4100,mips3,r4600,mips3,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_VR41XX) += -D_MIPS_ISA=_MIPS_ISA_MIPS3 - -cflags-$(CONFIG_CPU_R4X00) += \ - $(call set_gccflags,r4600,mips3,r4600,mips3,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_R4X00) += -D_MIPS_ISA=_MIPS_ISA_MIPS3 - -cflags-$(CONFIG_CPU_TX49XX) += \ - $(call set_gccflags,r4600,mips3,r4600,mips3,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_TX49XX) += -D_MIPS_ISA=_MIPS_ISA_MIPS3 - -cflags-$(CONFIG_CPU_MIPS32_R1) += \ - $(call set_gccflags,mips32,mips32,r4600,mips3,mips2) \ +cflags-$(CONFIG_CPU_R3000) += -march=r3000 +cflags-$(CONFIG_CPU_TX39XX) += -march=r3900 +cflags-$(CONFIG_CPU_R6000) += -march=r6000 -Wa,--trap +cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap +cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap +cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap +cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap +cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips2 -mtune=r4600) \ + -Wa,-mips32 -Wa,--trap +cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips2 -mtune=r4600) \ + -Wa,-mips32r2 -Wa,--trap +cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips2 -mtune=r4600) \ + -Wa,-mips64 -Wa,--trap +cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips2 -mtune=r4600 ) \ + -Wa,-mips64r2 -Wa,--trap +cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap +cflags-$(CONFIG_CPU_R5432) += $(call cc-options,-march=r5400,-march=r5000) \ -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_MIPS32_R1) += -D_MIPS_ISA=_MIPS_ISA_MIPS32 - -cflags-$(CONFIG_CPU_MIPS32_R2) += \ - $(call set_gccflags,mips32r2,mips32r2,r4600,mips3,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_MIPS32_R2) += -D_MIPS_ISA=_MIPS_ISA_MIPS32 - -cflags-$(CONFIG_CPU_MIPS64_R1) += \ - $(call set_gccflags,mips64,mips64,r4600,mips3,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_MIPS64_R1) += -D_MIPS_ISA=_MIPS_ISA_MIPS64 - -cflags-$(CONFIG_CPU_MIPS64_R2) += \ - $(call set_gccflags,mips64r2,mips64r2,r4600,mips3,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_MIPS64_R2) += -D_MIPS_ISA=_MIPS_ISA_MIPS64 - -cflags-$(CONFIG_CPU_R5000) += \ - $(call set_gccflags,r5000,mips4,r5000,mips4,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_R5000) += -D_MIPS_ISA=_MIPS_ISA_MIPS4 - -cflags-$(CONFIG_CPU_R5432) += \ - $(call set_gccflags,r5400,mips4,r5000,mips4,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_R5432) += -D_MIPS_ISA=_MIPS_ISA_MIPS4 - -cflags-$(CONFIG_CPU_NEVADA) += \ - $(call set_gccflags,rm5200,mips4,r5000,mips4,mips2) \ +cflags-$(CONFIG_CPU_NEVADA) += $(call cc-options,-march=rm5200,-march=r5000) \ -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_NEVADA) += -D_MIPS_ISA=_MIPS_ISA_MIPS4 - -cflags-$(CONFIG_CPU_RM7000) += \ - $(call set_gccflags,rm7000,mips4,r5000,mips4,mips2) \ +cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \ -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_RM7000) += -D_MIPS_ISA=_MIPS_ISA_MIPS4 - -cflags-$(CONFIG_CPU_RM9000) += \ - $(call set_gccflags,rm9000,mips4,r5000,mips4,mips2) \ - -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_RM9000) += -D_MIPS_ISA=_MIPS_ISA_MIPS4 - - -cflags-$(CONFIG_CPU_SB1) += \ - $(call set_gccflags,sb1,mips64,r5000,mips4,mips2) \ +cflags-$(CONFIG_CPU_RM9000) += $(call cc-option,-march=rm9000,-march=r5000) \ -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_SB1) += -D_MIPS_ISA=_MIPS_ISA_MIPS64 - -cflags-$(CONFIG_CPU_R8000) += \ - $(call set_gccflags,r8000,mips4,r8000,mips4,mips2) \ +cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \ -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_R8000) += -D_MIPS_ISA=_MIPS_ISA_MIPS4 - -cflags-$(CONFIG_CPU_R10000) += \ - $(call set_gccflags,r10000,mips4,r8000,mips4,mips2) \ +cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap +cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \ -Wa,--trap -CHECKFLAGS-$(CONFIG_CPU_R10000) += -D_MIPS_ISA=_MIPS_ISA_MIPS4 ifdef CONFIG_CPU_SB1 ifdef CONFIG_SB1_PASS_1_WORKAROUNDS @@ -748,6 +612,12 @@ CFLAGS += $(cflags-y) LDFLAGS += -m $(ld-emul) +ifdef CONFIG_MIPS +CHECKFLAGS += $(shell $(CC) $(CFLAGS) -dM -E -xc /dev/null | \ + egrep -vw '__GNUC_(MAJOR|MINOR|PATCHLEVEL)__' | \ + sed -e 's/^\#define /-D/' -e 's/ /="/' -e 's/$$/"/') +endif + OBJCOPYFLAGS += --remove-section=.reginfo # |