[people/ms/u-boot.git] / arch / mips / config.mk

#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# SPDX-License-Identifier:	GPL-2.0+
#

ifdef CONFIG_SYS_BIG_ENDIAN
32bit-emul		:= elf32btsmip
64bit-emul		:= elf64btsmip
32bit-bfd		:= elf32-tradbigmips
64bit-bfd		:= elf64-tradbigmips
PLATFORM_CPPFLAGS	+= -EB
PLATFORM_LDFLAGS	+= -EB
endif

ifdef CONFIG_SYS_LITTLE_ENDIAN
32bit-emul		:= elf32ltsmip
64bit-emul		:= elf64ltsmip
32bit-bfd		:= elf32-tradlittlemips
64bit-bfd		:= elf64-tradlittlemips
PLATFORM_CPPFLAGS	+= -EL
PLATFORM_LDFLAGS	+= -EL
endif

ifdef CONFIG_32BIT
PLATFORM_CPPFLAGS	+= -mabi=32
PLATFORM_LDFLAGS	+= -m $(32bit-emul)
OBJCOPYFLAGS		+= -O $(32bit-bfd)
endif

ifdef CONFIG_64BIT
PLATFORM_CPPFLAGS	+= -mabi=64
PLATFORM_LDFLAGS	+= -m$(64bit-emul)
OBJCOPYFLAGS		+= -O $(64bit-bfd)
endif

PLATFORM_CPPFLAGS += -D__MIPS__
PLATFORM_ELFENTRY = "__start"
PLATFORM_ELFFLAGS += -B mips $(OBJCOPYFLAGS)

#
# From Linux arch/mips/Makefile
#
# 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
# use of global pointer optimizations but their use of $28 conflicts with
# the current pointer optimization.
#
# The DECStation requires an ECOFF kernel for remote booting, other MIPS
# machines may also.  Since BFD is incredibly buggy with respect to
# crossformat linking we rely on the elf2ecoff tool for format conversion.
#
# cflags-y			+= -G 0 -mno-abicalls -fno-pic -pipe
# cflags-y			+= -msoft-float
# LDFLAGS_vmlinux		+= -G 0 -static -n -nostdlib
# MODFLAGS			+= -mlong-calls
#
# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
# to RAM. $28 is always used as gp.
#
ifdef CONFIG_SPL_BUILD
PF_ABICALLS			:= -mno-abicalls
PF_PIC				:= -fno-pic
PF_PIE				:=
else
PF_ABICALLS			:= -mabicalls
PF_PIC				:= -fpic
PF_PIE				:= -pie
PF_OBJCOPY			:= -j .got -j .rel.dyn -j .padding
PF_OBJCOPY			+= -j .dtb.init.rodata
endif

PLATFORM_CPPFLAGS		+= -G 0 $(PF_ABICALLS) $(PF_PIC)
PLATFORM_CPPFLAGS		+= -msoft-float
PLATFORM_LDFLAGS		+= -G 0 -static -n -nostdlib
PLATFORM_RELFLAGS		+= -ffunction-sections -fdata-sections
LDFLAGS_FINAL			+= --gc-sections $(PF_PIE)
OBJCOPYFLAGS			+= -j .text -j .rodata -j .data -j .u_boot_list
OBJCOPYFLAGS			+= $(PF_OBJCOPY)
Commit	Line	Data
6069ff26 WD	1	#
	2	# (C) Copyright 2003
	3	# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	#
1a459660	5	# SPDX-License-Identifier: GPL-2.0+
6069ff26 WD	6	#
6069ff26 WD	7
837cad1e DS	8	ifdef CONFIG_SYS_BIG_ENDIAN
	9	32bit-emul := elf32btsmip
	10	64bit-emul := elf64btsmip
	11	32bit-bfd := elf32-tradbigmips
	12	64bit-bfd := elf64-tradbigmips
	13	PLATFORM_CPPFLAGS += -EB
	14	PLATFORM_LDFLAGS += -EB
9b6e2c36	15	endif
1ea6bcd8	16
837cad1e DS	17	ifdef CONFIG_SYS_LITTLE_ENDIAN
	18	32bit-emul := elf32ltsmip
	19	64bit-emul := elf64ltsmip
	20	32bit-bfd := elf32-tradlittlemips
	21	64bit-bfd := elf64-tradlittlemips
	22	PLATFORM_CPPFLAGS += -EL
	23	PLATFORM_LDFLAGS += -EL
2c0e3de3 DS	24	endif
2c0e3de3 DS	25
837cad1e DS	26	ifdef CONFIG_32BIT
	27	PLATFORM_CPPFLAGS += -mabi=32
	28	PLATFORM_LDFLAGS += -m $(32bit-emul)
	29	OBJCOPYFLAGS += -O $(32bit-bfd)
2c0e3de3 DS	30	endif
2c0e3de3 DS	31
837cad1e DS	32	ifdef CONFIG_64BIT
	33	PLATFORM_CPPFLAGS += -mabi=64
	34	PLATFORM_LDFLAGS += -m$(64bit-emul)
	35	OBJCOPYFLAGS += -O $(64bit-bfd)
2c0e3de3 DS	36	endif
2c0e3de3 DS	37
90f984e3	38	PLATFORM_CPPFLAGS += -D__MIPS__
47cf465c ÁFR	39	PLATFORM_ELFENTRY = "__start"
47cf465c ÁFR	40	PLATFORM_ELFFLAGS += -B mips $(OBJCOPYFLAGS)
00101dd7 SK	41
	42	#
	43	# From Linux arch/mips/Makefile
	44	#
	45	# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
	46	# code since it only slows down the whole thing. At some point we might make
	47	# use of global pointer optimizations but their use of $28 conflicts with
	48	# the current pointer optimization.
	49	#
	50	# The DECStation requires an ECOFF kernel for remote booting, other MIPS
	51	# machines may also. Since BFD is incredibly buggy with respect to
	52	# crossformat linking we rely on the elf2ecoff tool for format conversion.
	53	#
	54	# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
	55	# cflags-y += -msoft-float
	56	# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
	57	# MODFLAGS += -mlong-calls
	58	#
f0d5a6f0 SK	59	# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
f0d5a6f0 SK	60	# to RAM. $28 is always used as gp.
00101dd7	61	#
e92d9124 DS	62	ifdef CONFIG_SPL_BUILD
	63	PF_ABICALLS := -mno-abicalls
	64	PF_PIC := -fno-pic
	65	PF_PIE :=
	66	else
	67	PF_ABICALLS := -mabicalls
	68	PF_PIC := -fpic
	69	PF_PIE := -pie
07f5b966	70	PF_OBJCOPY := -j .got -j .rel.dyn -j .padding
0fc13a90	71	PF_OBJCOPY += -j .dtb.init.rodata
e92d9124 DS	72	endif
	73
	74	PLATFORM_CPPFLAGS += -G 0 $(PF_ABICALLS) $(PF_PIC)
00101dd7	75	PLATFORM_CPPFLAGS += -msoft-float
837cad1e	76	PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib
660da094	77	PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
e92d9124	78	LDFLAGS_FINAL += --gc-sections $(PF_PIE)
07f5b966 DS	79	OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list
07f5b966 DS	80	OBJCOPYFLAGS += $(PF_OBJCOPY)