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wdenk6069ff22003-02-28 00:49:47 +00001#
2# (C) Copyright 2003
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
Wolfgang Denk1a459662013-07-08 09:37:19 +02005# SPDX-License-Identifier: GPL-2.0+
wdenk6069ff22003-02-28 00:49:47 +00006#
7
Masahiro Yamada9b6e2c32014-02-28 14:33:30 +09008ifeq ($(CROSS_COMPILE),)
9CROSS_COMPILE := mips_4KC-
10endif
Mike Frysinger1ea6bcd2009-06-14 23:33:14 -040011
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +020012# Handle special prefix in ELDK 4.0 toolchain
13ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
14ENDIANNESS := -EL
15endif
16
17ifdef CONFIG_SYS_LITTLE_ENDIAN
18ENDIANNESS := -EL
19endif
20
21ifdef CONFIG_SYS_BIG_ENDIAN
22ENDIANNESS := -EB
23endif
24
25# Default to EB if no endianess is configured
26ENDIANNESS ?= -EB
27
Masahiro Yamada90f984e2014-07-30 14:08:23 +090028PLATFORM_CPPFLAGS += -D__MIPS__
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +090029
Paul Burton9f0868f2014-04-07 10:11:22 +010030__HAVE_ARCH_GENERIC_BOARD := y
31
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +090032#
33# From Linux arch/mips/Makefile
34#
35# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
36# code since it only slows down the whole thing. At some point we might make
37# use of global pointer optimizations but their use of $28 conflicts with
38# the current pointer optimization.
39#
40# The DECStation requires an ECOFF kernel for remote booting, other MIPS
41# machines may also. Since BFD is incredibly buggy with respect to
42# crossformat linking we rely on the elf2ecoff tool for format conversion.
43#
44# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
45# cflags-y += -msoft-float
46# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
47# MODFLAGS += -mlong-calls
48#
Shinya Kuribayashif0d5a6f2008-06-05 22:29:00 +090049# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
50# to RAM. $28 is always used as gp.
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +090051#
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +020052PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic $(ENDIANNESS)
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +090053PLATFORM_CPPFLAGS += -msoft-float
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +020054PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib $(ENDIANNESS)
Daniel Schwierzeck660da092011-04-15 17:16:44 +020055PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
Gabor Juhos04380c62013-02-12 22:22:13 +010056LDFLAGS_FINAL += --gc-sections -pie
Daniel Schwierzeck79fd7e62013-10-11 17:46:59 +020057OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got
58OBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn