From: Mark Corbin Date: Thu, 19 Sep 2019 15:40:35 +0000 (+0100) Subject: arch/riscv: set the default float ABI based on ISA extensions X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=aee39cbf27e;p=buildroot.git arch/riscv: set the default float ABI based on ISA extensions This patch sets the default floating point ABI based on the ISA extensions that have been selected rather than defaulting to soft float. For 64-bit: ISA 'D' selects lp64d ISA 'F' selects lp64f Otherwise select lp64 For 32-bit: ISA 'D' selects ilp32d ISA 'F' selects ilp32f Otherwise select ilp32 This change was proposed by Palmer Dabbelt at SiFive. Signed-off-by: Mark Corbin Reviewed-by: Palmer Dabbelt Signed-off-by: Thomas Petazzoni --- diff --git a/arch/Config.in.riscv b/arch/Config.in.riscv index bdd2672602..1fc20e5de7 100644 --- a/arch/Config.in.riscv +++ b/arch/Config.in.riscv @@ -80,8 +80,12 @@ endchoice choice prompt "Target ABI" - default BR2_RISCV_ABI_ILP32 if !BR2_ARCH_IS_64 - default BR2_RISCV_ABI_LP64 if BR2_ARCH_IS_64 + default BR2_RISCV_ABI_ILP32D if !BR2_ARCH_IS_64 && BR2_RISCV_ISA_RVD + default BR2_RISCV_ABI_ILP32F if !BR2_ARCH_IS_64 && BR2_RISCV_ISA_RVF + default BR2_RISCV_ABI_ILP32 if !BR2_ARCH_IS_64 + default BR2_RISCV_ABI_LP64D if BR2_ARCH_IS_64 && BR2_RISCV_ISA_RVD + default BR2_RISCV_ABI_LP64F if BR2_ARCH_IS_64 && BR2_RISCV_ISA_RVF + default BR2_RISCV_ABI_LP64 if BR2_ARCH_IS_64 config BR2_RISCV_ABI_ILP32 bool "ilp32"