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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#
5# See file CREDITS for list of people who contributed to this
6# project.
7#
8# This program is free software; you can redistribute it and/or
9# modify it under the terms of the GNU General Public License as
10# published by the Free Software Foundation; either version 2 of
11# the License, or (at your option) any later version.
12#
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16# GNU General Public License for more details.
17#
18# You should have received a copy of the GNU General Public License
19# along with this program; if not, write to the Free Software
20# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21# MA 02111-1307 USA
22#
23
Mike Frysinger1ea6bcd2009-06-14 23:33:14 -040024CROSS_COMPILE ?= mips_4KC-
25
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +020026# Handle special prefix in ELDK 4.0 toolchain
27ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
28ENDIANNESS := -EL
29endif
30
31ifdef CONFIG_SYS_LITTLE_ENDIAN
32ENDIANNESS := -EL
33endif
34
35ifdef CONFIG_SYS_BIG_ENDIAN
36ENDIANNESS := -EB
37endif
38
39# Default to EB if no endianess is configured
40ENDIANNESS ?= -EB
41
wdenk6069ff22003-02-28 00:49:47 +000042PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +090043
44#
45# From Linux arch/mips/Makefile
46#
47# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
48# code since it only slows down the whole thing. At some point we might make
49# use of global pointer optimizations but their use of $28 conflicts with
50# the current pointer optimization.
51#
52# The DECStation requires an ECOFF kernel for remote booting, other MIPS
53# machines may also. Since BFD is incredibly buggy with respect to
54# crossformat linking we rely on the elf2ecoff tool for format conversion.
55#
56# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
57# cflags-y += -msoft-float
58# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
59# MODFLAGS += -mlong-calls
60#
Shinya Kuribayashif0d5a6f2008-06-05 22:29:00 +090061# On the other hand, we want PIC in the U-Boot code to relocate it from ROM
62# to RAM. $28 is always used as gp.
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +090063#
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +020064PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic $(ENDIANNESS)
Shinya Kuribayashi00101dd2007-10-21 21:30:42 +090065PLATFORM_CPPFLAGS += -msoft-float
Daniel Schwierzeck2c0e3de2012-08-21 23:27:37 +020066PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib $(ENDIANNESS)
Daniel Schwierzeck660da092011-04-15 17:16:44 +020067PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
Gabor Juhos04380c62013-02-12 22:22:13 +010068LDFLAGS_FINAL += --gc-sections -pie
69OBJCFLAGS += --remove-section=.dynsym