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wdenk4fc95692003-02-28 00:49:47 +00001#
2# (C) Copyright 2003
3# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4#
Wolfgang Denkd79de1d2013-07-08 09:37:19 +02005# SPDX-License-Identifier: GPL-2.0+
wdenk4fc95692003-02-28 00:49:47 +00006#
7
Masahiro Yamadaf0ac9e02014-02-28 14:33:30 +09008ifeq ($(CROSS_COMPILE),)
9CROSS_COMPILE := mips_4KC-
10endif
Mike Frysinger8378ba42009-06-14 23:33:14 -040011
Daniel Schwierzeckc390ba52012-08-21 23:27:37 +020012# Handle special prefix in ELDK 4.0 toolchain
13ifneq (,$(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
wdenk4fc95692003-02-28 00:49:47 +000028PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
Shinya Kuribayashi4b6d2802007-10-21 21:30:42 +090029
30#
31# From Linux arch/mips/Makefile
32#
33# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
34# code since it only slows down the whole thing. At some point we might make
35# use of global pointer optimizations but their use of $28 conflicts with
36# the current pointer optimization.
37#
38# The DECStation requires an ECOFF kernel for remote booting, other MIPS
39# machines may also. Since BFD is incredibly buggy with respect to
40# crossformat linking we rely on the elf2ecoff tool for format conversion.
41#
42# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
43# cflags-y += -msoft-float
44# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
45# MODFLAGS += -mlong-calls
46#
Shinya Kuribayashi8bf10e22008-06-05 22:29:00 +090047# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
48# to RAM. $28 is always used as gp.
Shinya Kuribayashi4b6d2802007-10-21 21:30:42 +090049#
Daniel Schwierzeckc390ba52012-08-21 23:27:37 +020050PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic $(ENDIANNESS)
Shinya Kuribayashi4b6d2802007-10-21 21:30:42 +090051PLATFORM_CPPFLAGS += -msoft-float
Daniel Schwierzeckc390ba52012-08-21 23:27:37 +020052PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib $(ENDIANNESS)
Daniel Schwierzeck089f2a12011-04-15 17:16:44 +020053PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
Gabor Juhos84937ab2013-02-12 22:22:13 +010054LDFLAGS_FINAL += --gc-sections -pie
Daniel Schwierzeck1263ea82013-10-11 17:46:59 +020055OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got
56OBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn