Commit 59b3e8e9 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

[MIPS] Makefile crapectomy. 


    
Dump all the ridiculously complicated stuff that was needed support
compilers older and newer than 3.0.
    
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Signed-off-by: default avatarThiemo Seufer <ths@networkno.de>
parent 0cea043b

arch/mips/Makefile

+39 −169
Original line number Diff line number Diff line
@@ -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



#