Here adds test support for little endian 64-bit PowerPC.
The powernv machine of qemu-system-ppc64le is used for there is just a
working powernv_defconfig.
As the document [1] shows:
PowerNV (as Non-Virtualized) is the “bare metal” platform using the
OPAL firmware. It runs Linux on IBM and OpenPOWER systems and it can be
used as an hypervisor OS, running KVM guests, or simply as a host OS.
[1]: https://qemu.readthedocs.io/en/latest/system/ppc/powernv.html
Signed-off-by: Zhangjin Wu <[email protected]>
---
tools/testing/selftests/nolibc/Makefile | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 9c375fab84e5..fbdf7fd9bf96 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -19,6 +19,7 @@ endif
XARCH ?= $(or $(XARCH_$(ARCH)),$(ARCH))
# ARCH is supported by kernel
+ARCH_powerpc64le = powerpc
ARCH := $(or $(ARCH_$(XARCH)),$(XARCH))
# kernel image names by architecture
@@ -29,6 +30,7 @@ IMAGE_arm64 = arch/arm64/boot/Image
IMAGE_arm = arch/arm/boot/zImage
IMAGE_mips = vmlinuz
IMAGE_powerpc = vmlinux
+IMAGE_powerpc64le= arch/powerpc/boot/zImage
IMAGE_riscv = arch/riscv/boot/Image
IMAGE_s390 = arch/s390/boot/bzImage
IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
@@ -43,6 +45,7 @@ DEFCONFIG_arm64 = defconfig
DEFCONFIG_arm = multi_v7_defconfig
DEFCONFIG_mips = malta_defconfig
DEFCONFIG_powerpc = pmac32_defconfig
+DEFCONFIG_powerpc64le= powernv_defconfig
DEFCONFIG_riscv = defconfig
DEFCONFIG_s390 = defconfig
DEFCONFIG_loongarch = defconfig
@@ -62,6 +65,7 @@ QEMU_ARCH_arm64 = aarch64
QEMU_ARCH_arm = arm
QEMU_ARCH_mips = mipsel # works with malta_defconfig
QEMU_ARCH_powerpc = ppc
+QEMU_ARCH_powerpc64le= ppc64le
QEMU_ARCH_riscv = riscv64
QEMU_ARCH_s390 = s390x
QEMU_ARCH_loongarch = loongarch64
@@ -75,6 +79,7 @@ QEMU_ARGS_arm64 = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC
QEMU_ARGS_arm = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_mips = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_powerpc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_powerpc64le= -M powernv -append "console=hvc0 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=%)"
@@ -90,6 +95,7 @@ else
Q=@
endif
+CFLAGS_powerpc64le = -m64 -mlittle-endian -Wl,-EL,-melf64ppc
CFLAGS_s390 = -m64
CFLAGS_mips = -EL
CFLAGS_STACKPROTECTOR ?= $(call cc-option,-mstack-protector-guard=global $(call cc-option,-fstack-protector-all))
--
2.25.1
On Wed, Jul 19, 2023 at 05:17:26AM +0800, Zhangjin Wu wrote:
> Here adds test support for little endian 64-bit PowerPC.
>
> The powernv machine of qemu-system-ppc64le is used for there is just a
> working powernv_defconfig.
>
> As the document [1] shows:
>
> PowerNV (as Non-Virtualized) is the "bare metal" platform using the
> OPAL firmware. It runs Linux on IBM and OpenPOWER systems and it can be
> used as an hypervisor OS, running KVM guests, or simply as a host OS.
>
> [1]: https://qemu.readthedocs.io/en/latest/system/ppc/powernv.html
>
> Signed-off-by: Zhangjin Wu <[email protected]>
> ---
> tools/testing/selftests/nolibc/Makefile | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
> index 9c375fab84e5..fbdf7fd9bf96 100644
> --- a/tools/testing/selftests/nolibc/Makefile
> +++ b/tools/testing/selftests/nolibc/Makefile
> @@ -19,6 +19,7 @@ endif
> XARCH ?= $(or $(XARCH_$(ARCH)),$(ARCH))
>
> # ARCH is supported by kernel
> +ARCH_powerpc64le = powerpc
Given that this one will only be used as an alias, I really think you
should call it "ppc64le" and not with that long a name. Everyone knows
that arch under the name ppc64 anyway so it's not like it would cause
any confusion.
Willy