Re: [U-Boot] [PATCH v2 06/29] riscv: set -march and -mabi based on the Kconfig configuration

On Tue, Oct 30, 2018 at 8:57 PM Lukas Auer lukas.auer@aisec.fraunhofer.de wrote:

Use the new Kconfig entries to construct the ISA string for the -march compiler flag. The -mabi compiler flag is selected based on the base integer instruction set.

With this change, the C (compressed instructions) ISA extension is now enabled for all boards with CONFIG_RISCV_ISA_C set. Buildman reports a decrease in binary size of 71590 bytes.

Signed-off-by: Lukas Auer lukas.auer@aisec.fraunhofer.de

Changes in v2:

• Change ISA string construction, as suggested by Bin Meng

arch/riscv/Makefile | 20 ++++++++++++++++++++ arch/riscv/config.mk | 4 ---- 2 files changed, 20 insertions(+), 4 deletions(-)

Reviewed-by: Bin Meng bmeng.cn@gmail.com