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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 9549867c861fdb186512df7593f543d5fe2020f4 / . / arch / mips / config.mk
blob: 52e28f2ca5cc7e4fc16dd06e21bb251b0f824eb7 [file] [log] [blame]
wdenk6069ff22003-02-28 00:49:47 +0000[diff] [blame]1#
2# (C) Copyright 2003
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
Wolfgang Denk1a459662013-07-08 09:37:19 +0200[diff] [blame]5# SPDX-License-Identifier: GPL-2.0+
wdenk6069ff22003-02-28 00:49:47 +0000[diff] [blame]6#
7
Daniel Schwierzeck837cad12014-10-26 14:16:23 +0100[diff] [blame]8ifdef CONFIG_SYS_BIG_ENDIAN
932bit-emul := elf32btsmip
1064bit-emul := elf64btsmip
1132bit-bfd := elf32-tradbigmips
1264bit-bfd := elf64-tradbigmips
13PLATFORM_CPPFLAGS += -EB
14PLATFORM_LDFLAGS += -EB
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +0200[diff] [blame]15endif
16
17ifdef CONFIG_SYS_LITTLE_ENDIAN
Daniel Schwierzeck837cad12014-10-26 14:16:23 +0100[diff] [blame]1832bit-emul := elf32ltsmip
1964bit-emul := elf64ltsmip
2032bit-bfd := elf32-tradlittlemips
2164bit-bfd := elf64-tradlittlemips
22PLATFORM_CPPFLAGS += -EL
23PLATFORM_LDFLAGS += -EL
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +0200[diff] [blame]24endif
25
Daniel Schwierzeck837cad12014-10-26 14:16:23 +0100[diff] [blame]26ifdef CONFIG_32BIT
27PLATFORM_CPPFLAGS += -mabi=32
28PLATFORM_LDFLAGS += -m $(32bit-emul)
29OBJCOPYFLAGS += -O $(32bit-bfd)
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +0200[diff] [blame]30endif
31
Daniel Schwierzeck837cad12014-10-26 14:16:23 +0100[diff] [blame]32ifdef CONFIG_64BIT
33PLATFORM_CPPFLAGS += -mabi=64
34PLATFORM_LDFLAGS += -m$(64bit-emul)
35OBJCOPYFLAGS += -O $(64bit-bfd)
36endif
37
38cpuflags-$(CONFIG_CPU_MIPS32_R1) += -march=mips32 -Wa,-mips32
39cpuflags-$(CONFIG_CPU_MIPS32_R2) += -march=mips32r2 -Wa,-mips32r2
40cpuflags-$(CONFIG_CPU_MIPS64_R1) += -march=mips64 -Wa,-mips64
41cpuflags-$(CONFIG_CPU_MIPS64_R2) += -march=mips64r2 -Wa,-mips64r2
42PLATFORM_CPPFLAGS += $(cpuflags-y)
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +0200[diff] [blame]43
Masahiro Yamada90f984e2014-07-30 14:08:23 +0900[diff] [blame]44PLATFORM_CPPFLAGS += -D__MIPS__
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +0900[diff] [blame]45
46#
47# From Linux arch/mips/Makefile
48#
49# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
50# code since it only slows down the whole thing. At some point we might make
51# use of global pointer optimizations but their use of $28 conflicts with
52# the current pointer optimization.
53#
54# The DECStation requires an ECOFF kernel for remote booting, other MIPS
55# machines may also. Since BFD is incredibly buggy with respect to
56# crossformat linking we rely on the elf2ecoff tool for format conversion.
57#
58# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
59# cflags-y += -msoft-float
60# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
61# MODFLAGS += -mlong-calls
62#
Shinya Kuribayashif0d5a6f2008-06-05 22:29:00 +0900[diff] [blame]63# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
64# to RAM. $28 is always used as gp.
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +0900[diff] [blame]65#
Daniel Schwierzeck837cad12014-10-26 14:16:23 +0100[diff] [blame]66PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +0900[diff] [blame]67PLATFORM_CPPFLAGS += -msoft-float
Daniel Schwierzeck837cad12014-10-26 14:16:23 +0100[diff] [blame]68PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib
Daniel Schwierzeck660da092011-04-15 17:16:44 +0200[diff] [blame]69PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
Gabor Juhos04380c62013-02-12 22:22:13 +0100[diff] [blame]70LDFLAGS_FINAL += --gc-sections -pie
Daniel Schwierzeck79fd7e62013-10-11 17:46:59 +0200[diff] [blame]71OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got
Daniel Schwierzeck265072b2014-10-29 17:30:36 +0100[diff] [blame]72OBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn -j .padding