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u-boot/arch/riscv/config.mk

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SPDX: Convert all of our single license tags to Linux Kernel style When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-06 21:58:06 +00:00
# SPDX-License-Identifier: GPL-2.0+
riscv: Add Kconfig to support RISC-V Add Kconfig and makefile for RISC-V Also modify MAINTAINERS for it. Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Signed-off-by: Greentime Hu <green.hu@gmail.com> Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
2017-12-26 05:55:52 +00:00
#
# (C) Copyright 2000-2002
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# Copyright (c) 2017 Microsemi Corporation.
# Padmarao Begari, Microsemi Corporation <padmarao.begari@microsemi.com>
#
# Copyright (C) 2017 Andes Technology Corporation
# Rick Chen, Andes Technology Corporation <rick@andestech.com>
#
32bit-emul := elf32lriscv
64bit-emul := elf64lriscv
ifdef CONFIG_32BIT
PLATFORM_LDFLAGS += -m $(32bit-emul)
riscv: Add EFI application infrastructure The hello world binary and a few selftests require to build EFI target binaries, not just the EFI host environment. This patch adds all required files to generate an EFI binary for RISC-V. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-04-23 05:59:45 +00:00
EFI_LDS := elf_riscv32_efi.lds
riscv: Add Kconfig to support RISC-V Add Kconfig and makefile for RISC-V Also modify MAINTAINERS for it. Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Signed-off-by: Greentime Hu <green.hu@gmail.com> Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
2017-12-26 05:55:52 +00:00
endif
ifdef CONFIG_64BIT
PLATFORM_LDFLAGS += -m $(64bit-emul)
riscv: Add EFI application infrastructure The hello world binary and a few selftests require to build EFI target binaries, not just the EFI host environment. This patch adds all required files to generate an EFI binary for RISC-V. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-04-23 05:59:45 +00:00
EFI_LDS := elf_riscv64_efi.lds
riscv: Add Kconfig to support RISC-V Add Kconfig and makefile for RISC-V Also modify MAINTAINERS for it. Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Signed-off-by: Greentime Hu <green.hu@gmail.com> Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
2017-12-26 05:55:52 +00:00
endif
Kbuild: add LDFLAGS_STANDALONE Introduce a new Makefile variable for passing LDFLAGS to standalone programs. Currently the variable CONFIG_STANDALONE_LOAD_ADDR is misued on some archs to pass a specific linker script. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Rick Chen <rick@andestech.com>
2018-09-23 17:15:15 +00:00
CONFIG_STANDALONE_LOAD_ADDR = 0x00000000
LDFLAGS_STANDALONE += -T $(srctree)/examples/standalone/riscv.lds
riscv: Add Kconfig to support RISC-V Add Kconfig and makefile for RISC-V Also modify MAINTAINERS for it. Signed-off-by: Rick Chen <rick@andestech.com> Signed-off-by: Rick Chen <rickchen36@gmail.com> Signed-off-by: Greentime Hu <green.hu@gmail.com> Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
2017-12-26 05:55:52 +00:00
PLATFORM_CPPFLAGS += -ffixed-gp -fpic
riscv: enable -fdata-sections Enable the -fdata-sections compiler option for RISC-V. Buildman reports the binary size decrease from this as 8365.3 bytes. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Rick Chen <rick@andestech.com>
2018-11-22 10:26:16 +00:00
PLATFORM_RELFLAGS += -fno-common -gdwarf-2 -ffunction-sections \
-fdata-sections
riscv: Explicitly pass -march and -mabi to the compiler At present the compiler flag against which architecture and abi variant the riscv image is built for is not explicitly indicated which means the default compiler configuration is used. But this does not work if we want to build a different target (eg: 32-bit riscv images using a toolchain configured for 64-bit riscv). Fix this by explicitly passing -march and -mabi to the compiler. Since generically we don't use floating point in U-Boot, specify the RV[32|64]IMA ISA and software floating ABI. This also fix some alignment coding style issues. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
2018-09-26 13:55:13 +00:00
LDFLAGS_u-boot += --gc-sections -static -pie
riscv: Add EFI application infrastructure The hello world binary and a few selftests require to build EFI target binaries, not just the EFI host environment. This patch adds all required files to generate an EFI binary for RISC-V. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-04-23 05:59:45 +00:00
EFI_CRT0 := crt0_riscv_efi.o
EFI_RELOC := reloc_riscv_efi.o
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