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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
Mike Frysinger8378ba42009-06-14 23:33:14 -04008CROSS_COMPILE ?= mips_4KC-
9
Daniel Schwierzeckc390ba52012-08-21 23:27:37 +020010# Handle special prefix in ELDK 4.0 toolchain
11ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
12ENDIANNESS := -EL
13endif
14
15ifdef CONFIG_SYS_LITTLE_ENDIAN
16ENDIANNESS := -EL
17endif
18
19ifdef CONFIG_SYS_BIG_ENDIAN
20ENDIANNESS := -EB
21endif
22
23# Default to EB if no endianess is configured
24ENDIANNESS ?= -EB
25
wdenk4fc95692003-02-28 00:49:47 +000026PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
Shinya Kuribayashi4b6d2802007-10-21 21:30:42 +090027
28#
29# From Linux arch/mips/Makefile
30#
31# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
32# code since it only slows down the whole thing. At some point we might make
33# use of global pointer optimizations but their use of $28 conflicts with
34# the current pointer optimization.
35#
36# The DECStation requires an ECOFF kernel for remote booting, other MIPS
37# machines may also. Since BFD is incredibly buggy with respect to
38# crossformat linking we rely on the elf2ecoff tool for format conversion.
39#
40# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
41# cflags-y += -msoft-float
42# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
43# MODFLAGS += -mlong-calls
44#
Shinya Kuribayashi8bf10e22008-06-05 22:29:00 +090045# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
46# to RAM. $28 is always used as gp.
Shinya Kuribayashi4b6d2802007-10-21 21:30:42 +090047#
Daniel Schwierzeckc390ba52012-08-21 23:27:37 +020048PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic $(ENDIANNESS)
Shinya Kuribayashi4b6d2802007-10-21 21:30:42 +090049PLATFORM_CPPFLAGS += -msoft-float
Daniel Schwierzeckc390ba52012-08-21 23:27:37 +020050PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib $(ENDIANNESS)
Daniel Schwierzeck089f2a12011-04-15 17:16:44 +020051PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
Gabor Juhos84937ab2013-02-12 22:22:13 +010052LDFLAGS_FINAL += --gc-sections -pie
53OBJCFLAGS += --remove-section=.dynsym