wdenk | 4fc9569 | 2003-02-28 00:49:47 +0000 | [diff] [blame] | 1 | # |
| 2 | # (C) Copyright 2003 |
| 3 | # Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | # |
Wolfgang Denk | d79de1d | 2013-07-08 09:37:19 +0200 | [diff] [blame] | 5 | # SPDX-License-Identifier: GPL-2.0+ |
wdenk | 4fc9569 | 2003-02-28 00:49:47 +0000 | [diff] [blame] | 6 | # |
| 7 | |
Masahiro Yamada | f0ac9e0 | 2014-02-28 14:33:30 +0900 | [diff] [blame] | 8 | ifeq ($(CROSS_COMPILE),) |
| 9 | CROSS_COMPILE := mips_4KC- |
| 10 | endif |
Mike Frysinger | 8378ba4 | 2009-06-14 23:33:14 -0400 | [diff] [blame] | 11 | |
Daniel Schwierzeck | c390ba5 | 2012-08-21 23:27:37 +0200 | [diff] [blame] | 12 | # Handle special prefix in ELDK 4.0 toolchain |
| 13 | ifneq (,$(findstring 4KCle,$(CROSS_COMPILE))) |
| 14 | ENDIANNESS := -EL |
| 15 | endif |
| 16 | |
| 17 | ifdef CONFIG_SYS_LITTLE_ENDIAN |
| 18 | ENDIANNESS := -EL |
| 19 | endif |
| 20 | |
| 21 | ifdef CONFIG_SYS_BIG_ENDIAN |
| 22 | ENDIANNESS := -EB |
| 23 | endif |
| 24 | |
| 25 | # Default to EB if no endianess is configured |
| 26 | ENDIANNESS ?= -EB |
| 27 | |
wdenk | 4fc9569 | 2003-02-28 00:49:47 +0000 | [diff] [blame] | 28 | PLATFORM_CPPFLAGS += -DCONFIG_MIPS -D__MIPS__ |
Shinya Kuribayashi | 4b6d280 | 2007-10-21 21:30:42 +0900 | [diff] [blame] | 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 | # |
Shinya Kuribayashi | 8bf10e2 | 2008-06-05 22:29:00 +0900 | [diff] [blame] | 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. |
Shinya Kuribayashi | 4b6d280 | 2007-10-21 21:30:42 +0900 | [diff] [blame] | 49 | # |
Daniel Schwierzeck | c390ba5 | 2012-08-21 23:27:37 +0200 | [diff] [blame] | 50 | PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic $(ENDIANNESS) |
Shinya Kuribayashi | 4b6d280 | 2007-10-21 21:30:42 +0900 | [diff] [blame] | 51 | PLATFORM_CPPFLAGS += -msoft-float |
Daniel Schwierzeck | c390ba5 | 2012-08-21 23:27:37 +0200 | [diff] [blame] | 52 | PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib $(ENDIANNESS) |
Daniel Schwierzeck | 089f2a1 | 2011-04-15 17:16:44 +0200 | [diff] [blame] | 53 | PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections |
Gabor Juhos | 84937ab | 2013-02-12 22:22:13 +0100 | [diff] [blame] | 54 | LDFLAGS_FINAL += --gc-sections -pie |
Daniel Schwierzeck | 1263ea8 | 2013-10-11 17:46:59 +0200 | [diff] [blame] | 55 | OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .got |
| 56 | OBJCOPYFLAGS += -j .u_boot_list -j .rel.dyn |