blob: faf4129ac16c3c18a49444bea3e4744324c79f3d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
ifdef CONFIG_SYS_BIG_ENDIAN
32bit-emul := elf32btsmip
64bit-emul := elf64btsmip
32bit-bfd := elf32-tradbigmips
64bit-bfd := elf64-tradbigmips
PLATFORM_CPPFLAGS += -EB
KBUILD_LDFLAGS += -EB
endif
ifdef CONFIG_SYS_LITTLE_ENDIAN
32bit-emul := elf32ltsmip
64bit-emul := elf64ltsmip
32bit-bfd := elf32-tradlittlemips
64bit-bfd := elf64-tradlittlemips
PLATFORM_CPPFLAGS += -EL
KBUILD_LDFLAGS += -EL
endif
ifdef CONFIG_32BIT
PLATFORM_CPPFLAGS += -mabi=32
KBUILD_LDFLAGS += -m $(32bit-emul)
OBJCOPYFLAGS += -O $(32bit-bfd)
CONFIG_STANDALONE_LOAD_ADDR ?= 0x80200000
endif
ifdef CONFIG_64BIT
PLATFORM_CPPFLAGS += -mabi=64
KBUILD_LDFLAGS += -m$(64bit-emul)
OBJCOPYFLAGS += -O $(64bit-bfd)
CONFIG_STANDALONE_LOAD_ADDR ?= 0xffffffff80200000
endif
PLATFORM_CPPFLAGS += -D__MIPS__
PLATFORM_ELFFLAGS += -B mips $(OBJCOPYFLAGS)
#
# From Linux arch/mips/Makefile
#
# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
# code since it only slows down the whole thing. At some point we might make
# use of global pointer optimizations but their use of $28 conflicts with
# the current pointer optimization.
#
# The DECStation requires an ECOFF kernel for remote booting, other MIPS
# machines may also. Since BFD is incredibly buggy with respect to
# crossformat linking we rely on the elf2ecoff tool for format conversion.
#
# cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
# cflags-y += -msoft-float
# LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
# MODFLAGS += -mlong-calls
#
ifndef CONFIG_SPL_BUILD
OBJCOPYFLAGS += -j .data.reloc -j .dtb.init.rodata
LDFLAGS_FINAL += --emit-relocs
endif
PLATFORM_CPPFLAGS += -G 0 -mno-abicalls -fno-pic
PLATFORM_CPPFLAGS += -msoft-float
KBUILD_LDFLAGS += -G 0 -static -n -nostdlib
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
LDFLAGS_FINAL += --gc-sections
OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list
LDFLAGS_STANDALONE += --gc-sections
|
