From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Corbin Date: Thu, 19 Sep 2019 16:40:35 +0100 Subject: [Buildroot] [PATCH 1/1] arch/riscv: set the default float ABI based on ISA extensions Message-ID: <20190919154036.23245-1-mark.corbin@embecosm.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net 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 --- arch/Config.in.riscv | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) 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" -- 2.19.1