From: Zhangjin Wu <falcon@tinylab.org>
To: w@1wt.eu
Cc: falcon@tinylab.org, arnd@arndb.de, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org,
thomas@t-8ch.de, "Thomas Weißschuh" <linux@weissschuh.net>
Subject: [PATCH v5 5/5] selftests/nolibc: riscv: customize makefile for rv32
Date: Mon, 19 Jun 2023 20:29:38 +0800 [thread overview]
Message-ID: <2ebfb48c66b18a5fd7d0bd6b7c832a5d8ce6486f.1687176996.git.falcon@tinylab.org> (raw)
In-Reply-To: <cover.1687176996.git.falcon@tinylab.org>
Both riscv64 and riscv32 have:
* the same arch/riscv source code tree
* the same tools/include/nolibc/arch-riscv.h
* the same ARCH=riscv value passed to top-level kernel Makefile
The only differences are:
* riscv64 uses defconfig, riscv32 uses rv32_defconfig
* riscv64 uses qemu-system-riscv64, riscv32 uses qemu-system-riscv32
* riscv32 has different compiler options (-march= and -mabi=)
So, riscv32 can share most of the settings with riscv64, add riscv32
support like the original ARCH=riscv support.
To align with x86, the default riscv is reserved for riscv64 and a new
riscv64 is also added to allow users pass ARCH=riscv64 directly.
Since top-level kernel Makefile only accept ARCH=riscv, to make kernel
happy, let's set kernel specific KARCH as riscv for both riscv32 and
riscv64.
And since they share the same arch-riscv.h, let's set nolibc specific
NARCH as riscv too.
Usage:
$ make defconfig ARCH=riscv32 CROSS_COMPILE=riscv64-linux-gnu- ...
$ make run ARCH=riscv32 CROSS_COMPILE=riscv64-linux-gnu- ...
Suggested-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/linux-riscv/4a3b1cdf-91d5-4668-925e-21f8f5c64a92@t-8ch.de/
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/linux-riscv/d1c83340-af4c-4780-a101-b9d22b47379c@app.fastmail.com/
Suggested-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/lkml/ZIAywHvr6UB1J4of@1wt.eu/
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/include/nolibc/Makefile | 4 ++++
tools/testing/selftests/nolibc/Makefile | 11 +++++++++++
2 files changed, 15 insertions(+)
diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile
index 14a6416fa57f..875e13e3c851 100644
--- a/tools/include/nolibc/Makefile
+++ b/tools/include/nolibc/Makefile
@@ -24,9 +24,13 @@ Q=@
endif
# kernel supported ARCH names by architecture
+KARCH_riscv32 = riscv
+KARCH_riscv64 = riscv
KARCH = $(or $(KARCH_$(ARCH)),$(ARCH))
# nolibc supported ARCH names by architecture
+NARCH_riscv32 = riscv
+NARCH_riscv64 = riscv
NARCH_arm64 = aarch64
NARCH = $(or $(NARCH_$(ARCH)),$(ARCH))
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index ebecb8cfd947..848884204a84 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -15,6 +15,8 @@ ARCH = $(SUBARCH)
endif
# kernel supported ARCH names by architecture
+KARCH_riscv32 = riscv
+KARCH_riscv64 = riscv
KARCH = $(or $(KARCH_$(ARCH)),$(ARCH))
# kernel image names by architecture
@@ -24,6 +26,8 @@ IMAGE_x86 = arch/x86/boot/bzImage
IMAGE_arm64 = arch/arm64/boot/Image
IMAGE_arm = arch/arm/boot/zImage
IMAGE_mips = vmlinuz
+IMAGE_riscv32 = arch/riscv/boot/Image
+IMAGE_riscv64 = arch/riscv/boot/Image
IMAGE_riscv = arch/riscv/boot/Image
IMAGE_s390 = arch/s390/boot/bzImage
IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
@@ -37,6 +41,8 @@ DEFCONFIG_x86 = defconfig
DEFCONFIG_arm64 = defconfig
DEFCONFIG_arm = multi_v7_defconfig
DEFCONFIG_mips = malta_defconfig
+DEFCONFIG_riscv32 = rv32_defconfig
+DEFCONFIG_riscv64 = defconfig
DEFCONFIG_riscv = defconfig
DEFCONFIG_s390 = defconfig
DEFCONFIG_loongarch = defconfig
@@ -52,6 +58,8 @@ QEMU_ARCH_x86 = x86_64
QEMU_ARCH_arm64 = aarch64
QEMU_ARCH_arm = arm
QEMU_ARCH_mips = mipsel # works with malta_defconfig
+QEMU_ARCH_riscv32 = riscv32
+QEMU_ARCH_riscv64 = riscv64
QEMU_ARCH_riscv = riscv64
QEMU_ARCH_s390 = s390x
QEMU_ARCH_loongarch = loongarch64
@@ -64,6 +72,8 @@ QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(
QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_mips = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_riscv32 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_riscv64 = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_riscv = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_s390 = -M s390-ccw-virtio -m 1G -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_loongarch = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
@@ -79,6 +89,7 @@ else
Q=@
endif
+CFLAGS_riscv32 = -march=rv32im -mabi=ilp32
CFLAGS_s390 = -m64
CFLAGS_mips = -EL
CFLAGS_STACKPROTECTOR ?= $(call cc-option,-mstack-protector-guard=global $(call cc-option,-fstack-protector-all))
--
2.25.1
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next prev parent reply other threads:[~2023-06-19 12:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-19 12:22 [PATCH v5 0/5] nolibc: add part2 of support for rv32 Zhangjin Wu
2023-06-19 12:24 ` [PATCH v5 1/5] tools/nolibc: fix up #error compile failures with -ENOSYS Zhangjin Wu
2023-07-02 16:51 ` Willy Tarreau
2023-06-19 12:25 ` [PATCH v5 2/5] tools/nolibc: fix up undeclared syscall macros with #ifdef and -ENOSYS Zhangjin Wu
2023-06-19 12:27 ` [PATCH v5 3/5] selftests/nolibc: allow customize kernel specific ARCH variable Zhangjin Wu
2023-06-19 12:28 ` [PATCH v5 4/5] tools/nolibc: add kernel and nolibc specific ARCH variables Zhangjin Wu
2023-06-19 12:29 ` Zhangjin Wu [this message]
2023-07-02 17:17 ` [PATCH v5 5/5] selftests/nolibc: riscv: customize makefile for rv32 Willy Tarreau
2023-07-03 15:51 ` Zhangjin Wu
2023-07-02 17:19 ` [PATCH v5 0/5] nolibc: add part2 of support " Willy Tarreau
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