xref: /openbmc/u-boot/arch/mips/config.mk (revision 26749582)
1#
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
24CROSS_COMPILE ?= mips_4KC-
25
26CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000 -T mips.lds
27
28PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__
29
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#
47# 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.
49#
50PLATFORM_CPPFLAGS		+= -G 0 -mabicalls -fpic
51PLATFORM_CPPFLAGS		+= -msoft-float
52PLATFORM_LDFLAGS		+= -G 0 -static -n -nostdlib
53PLATFORM_RELFLAGS		+= -ffunction-sections -fdata-sections
54LDFLAGS_FINAL			+= --gc-sections
55