* [PATCH 1/2] selftests/nolibc: explicitly enable ARM mode
2025-03-01 11:23 [PATCH 0/2] selftests/nolibc: add armthumb configuration Thomas Weißschuh
@ 2025-03-01 11:23 ` Thomas Weißschuh
2025-03-01 11:24 ` [PATCH 2/2] selftests/nolibc: add armthumb configuration Thomas Weißschuh
2025-03-01 16:32 ` [PATCH 0/2] " Willy Tarreau
2 siblings, 0 replies; 4+ messages in thread
From: Thomas Weißschuh @ 2025-03-01 11:23 UTC (permalink / raw)
To: Willy Tarreau, Shuah Khan
Cc: linux-kselftest, linux-kernel, Thomas Weißschuh
The default could also be -mthumb.
Explicitly use -marm to keep everything predictable.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
tools/testing/selftests/nolibc/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 14fc8c7e7c3067efddf0f729890fb78df731efb3..1dd2841a5fe781254a7f4b7b1ade677bd4bc0691 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -160,6 +160,7 @@ Q=@
endif
CFLAGS_i386 = $(call cc-option,-m32)
+CFLAGS_arm = -marm
CFLAGS_ppc = -m32 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
CFLAGS_ppc64 = -m64 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
CFLAGS_ppc64le = -m64 -mlittle-endian -mno-vsx $(call cc-option,-mabi=elfv2)
--
2.48.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH 2/2] selftests/nolibc: add armthumb configuration
2025-03-01 11:23 [PATCH 0/2] selftests/nolibc: add armthumb configuration Thomas Weißschuh
2025-03-01 11:23 ` [PATCH 1/2] selftests/nolibc: explicitly enable ARM mode Thomas Weißschuh
@ 2025-03-01 11:24 ` Thomas Weißschuh
2025-03-01 16:32 ` [PATCH 0/2] " Willy Tarreau
2 siblings, 0 replies; 4+ messages in thread
From: Thomas Weißschuh @ 2025-03-01 11:24 UTC (permalink / raw)
To: Willy Tarreau, Shuah Khan
Cc: linux-kselftest, linux-kernel, Thomas Weißschuh
While nolibc does support ARM Thumb instructions,
that support was not tested specifically.
Add a new test configuration for it.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
tools/testing/selftests/nolibc/Makefile | 6 ++++++
tools/testing/selftests/nolibc/run-tests.sh | 5 +++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 1dd2841a5fe781254a7f4b7b1ade677bd4bc0691..58bcbbd029bc3ad9ccac968191b703ccf5df0717 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -47,6 +47,7 @@ XARCH_riscv = riscv64
XARCH = $(or $(XARCH_$(ARCH)),$(ARCH))
# map from user input variants to their kernel supported architectures
+ARCH_armthumb = arm
ARCH_ppc = powerpc
ARCH_ppc64 = powerpc
ARCH_ppc64le = powerpc
@@ -63,6 +64,7 @@ IMAGE_x86_64 = arch/x86/boot/bzImage
IMAGE_x86 = arch/x86/boot/bzImage
IMAGE_arm64 = arch/arm64/boot/Image
IMAGE_arm = arch/arm/boot/zImage
+IMAGE_armthumb = arch/arm/boot/zImage
IMAGE_mips32le = vmlinuz
IMAGE_mips32be = vmlinuz
IMAGE_ppc = vmlinux
@@ -83,6 +85,7 @@ DEFCONFIG_x86_64 = defconfig
DEFCONFIG_x86 = defconfig
DEFCONFIG_arm64 = defconfig
DEFCONFIG_arm = multi_v7_defconfig
+DEFCONFIG_armthumb = multi_v7_defconfig
DEFCONFIG_mips32le = malta_defconfig
DEFCONFIG_mips32be = malta_defconfig generic/eb.config
DEFCONFIG_ppc = pmac32_defconfig
@@ -107,6 +110,7 @@ QEMU_ARCH_x86_64 = x86_64
QEMU_ARCH_x86 = x86_64
QEMU_ARCH_arm64 = aarch64
QEMU_ARCH_arm = arm
+QEMU_ARCH_armthumb = arm
QEMU_ARCH_mips32le = mipsel # works with malta_defconfig
QEMU_ARCH_mips32be = mips
QEMU_ARCH_ppc = ppc
@@ -136,6 +140,7 @@ QEMU_ARGS_x86_64 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(
QEMU_ARGS_x86 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
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_armthumb = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_mips32le = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_mips32be = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_ppc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
@@ -161,6 +166,7 @@ endif
CFLAGS_i386 = $(call cc-option,-m32)
CFLAGS_arm = -marm
+CFLAGS_armthumb = -mthumb -march=armv6t2
CFLAGS_ppc = -m32 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
CFLAGS_ppc64 = -m64 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
CFLAGS_ppc64le = -m64 -mlittle-endian -mno-vsx $(call cc-option,-mabi=elfv2)
diff --git a/tools/testing/selftests/nolibc/run-tests.sh b/tools/testing/selftests/nolibc/run-tests.sh
index d716124f5e82b74deb48c9c2c3c699e4c076418c..0299a0912d4049dd12217f9835b81d231e1d2bfd 100755
--- a/tools/testing/selftests/nolibc/run-tests.sh
+++ b/tools/testing/selftests/nolibc/run-tests.sh
@@ -19,7 +19,7 @@ werror=1
llvm=
all_archs=(
i386 x86_64
- arm64 arm
+ arm64 arm armthumb
mips32le mips32be
ppc ppc64 ppc64le
riscv32 riscv64
@@ -103,6 +103,7 @@ fi
crosstool_arch() {
case "$1" in
arm64) echo aarch64;;
+ armthumb) echo arm;;
ppc) echo powerpc;;
ppc64) echo powerpc64;;
ppc64le) echo powerpc64;;
@@ -116,7 +117,7 @@ crosstool_arch() {
crosstool_abi() {
case "$1" in
- arm) echo linux-gnueabi;;
+ arm | armthumb) echo linux-gnueabi;;
*) echo linux;;
esac
}
--
2.48.1
^ permalink raw reply related [flat|nested] 4+ messages in thread