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From: guoren@kernel.org
To: paul.walmsley@sifive.com, palmer@dabbelt.com,
	aou@eecs.berkeley.edu, Anup.Patel@wdc.com,
	vincent.chen@sifive.com, zong.li@sifive.com,
	greentime.hu@sifive.com, bmeng.cn@gmail.com, atish.patra@wdc.com,
	schwab@linux-m68k.org
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
	arnd@arndb.de, linux-csky@vger.kernel.org,
	linux-riscv@lists.infradead.org, Guo Ren <ren_guo@c-sky.com>
Subject: [PATCH V2 1/4] riscv: Separate patch for cflags and aflags
Date: Thu, 16 Jan 2020 22:30:26 +0800
Message-ID: <20200116143029.31441-1-guoren@kernel.org> (raw)

From: Guo Ren <ren_guo@c-sky.com>

Use "subst fd" in Makefile is a hack way and it's not convenient
to add new ISA feature. Just separate them into riscv-march-cflags
and riscv-march-aflags.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Cc: Anup Patel <Anup.Patel@wdc.com>
---
 arch/riscv/Makefile | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index b9009a2fbaf5..6d09b53cf106 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -35,12 +35,18 @@ else
 endif
 
 # ISA string setting
-riscv-march-$(CONFIG_ARCH_RV32I)	:= rv32ima
-riscv-march-$(CONFIG_ARCH_RV64I)	:= rv64ima
-riscv-march-$(CONFIG_FPU)		:= $(riscv-march-y)fd
-riscv-march-$(CONFIG_RISCV_ISA_C)	:= $(riscv-march-y)c
-KBUILD_CFLAGS += -march=$(subst fd,,$(riscv-march-y))
-KBUILD_AFLAGS += -march=$(riscv-march-y)
+riscv-march-cflags-$(CONFIG_ARCH_RV32I)		:= rv32ima
+riscv-march-cflags-$(CONFIG_ARCH_RV64I)		:= rv64ima
+riscv-march-$(CONFIG_FPU)			:= $(riscv-march-y)fd
+riscv-march-cflags-$(CONFIG_RISCV_ISA_C)	:= $(riscv-march-cflags-y)c
+
+riscv-march-aflags-$(CONFIG_ARCH_RV32I)		:= rv32ima
+riscv-march-aflags-$(CONFIG_ARCH_RV64I)		:= rv64ima
+riscv-march-aflags-$(CONFIG_FPU)		:= $(riscv-march-aflags-y)fd
+riscv-march-aflags-$(CONFIG_RISCV_ISA_C)	:= $(riscv-march-aflags-y)c
+
+KBUILD_CFLAGS += -march=$(riscv-march-cflags-y)
+KBUILD_AFLAGS += -march=$(riscv-march-aflags-y)
 
 KBUILD_CFLAGS += -mno-save-restore
 KBUILD_CFLAGS += -DCONFIG_PAGE_OFFSET=$(CONFIG_PAGE_OFFSET)
-- 
2.17.0


             reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-16 14:30 guoren [this message]
2020-01-16 14:30 ` [PATCH V2 2/4] riscv: Rename __switch_to_aux -> fpu guoren
2020-01-23  5:44   ` Anup Patel
2020-01-16 14:30 ` [PATCH V2 3/4] riscv: Extending cpufeature.c to detect V-extension guoren
2020-01-23  5:45   ` Anup Patel
2020-01-16 14:30 ` [PATCH V2 4/4] riscv: Add vector ISA support guoren
2020-01-23  6:04   ` Anup Patel
2020-01-23  5:44 ` [PATCH V2 1/4] riscv: Separate patch for cflags and aflags Anup Patel

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