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