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| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2025-06-13 17:12:57 +0100 |
|---|---|---|
| committer | Leo Yu-Chi Liang <ycliang@andestech.com> | 2025-07-03 18:10:50 +0800 |
| commit | 7bd65e89addd62999bd26e8c4b78b1658bba6a5c (patch) | |
| tree | 361a62cf4cfc04ffe08f64e54a9d29788166ec00 | |
| parent | a23c1b3fc09431a2787c0ff5f9b3aea5c754ad6d (diff) | |
riscv: add build support for big-endian
Add support to build code big-endian if the board supports
it. Updates the makefile to pass the correct compiler and
elf flags.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Tom Rini <trini@konsulko.com>
| -rw-r--r-- | arch/riscv/config.mk | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/arch/riscv/config.mk b/arch/riscv/config.mk index 9f16dda92a0..eddd6a3b9a2 100644 --- a/arch/riscv/config.mk +++ b/arch/riscv/config.mk @@ -10,19 +10,29 @@ # Rick Chen, Andes Technology Corporation <rick@andestech.com> # -32bit-emul := elf32lriscv -64bit-emul := elf64lriscv +ifdef CONFIG_SYS_BIG_ENDIAN +small-endian := b +large-endian := big +PLATFORM_CPPFLAGS += -mbig-endian +KBUILD_LDFLAGS += -mbig-endian +else +small-endian := l +large-endian := little +endif + +32bit-emul := elf32$(small-endian)riscv +64bit-emul := elf64$(small-endian)riscv ifdef CONFIG_32BIT KBUILD_LDFLAGS += -m $(32bit-emul) EFI_LDS := elf_riscv32_efi.lds -PLATFORM_ELFFLAGS += -B riscv -O elf32-littleriscv +PLATFORM_ELFFLAGS += -B riscv -O elf32-$(large-endian)riscv endif ifdef CONFIG_64BIT KBUILD_LDFLAGS += -m $(64bit-emul) EFI_LDS := elf_riscv64_efi.lds -PLATFORM_ELFFLAGS += -B riscv -O elf64-littleriscv +PLATFORM_ELFFLAGS += -B riscv -O elf64-$(large-endian)riscv endif PLATFORM_CPPFLAGS += -ffixed-x3 -fpic |