* [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support
@ 2023-07-26 14:48 Zhangjin Wu
2023-07-26 14:49 ` [PATCH v2 1/7] tools/nolibc: add support for powerpc Zhangjin Wu
` (6 more replies)
0 siblings, 7 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:48 UTC (permalink / raw)
To: w; +Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas
Hi, Willy, Thomas
The suggestions of v1 nolibc powerpc patchset [1] from you have been applied,
here is v2.
Testing results:
- run with tinyconfig
arch/board | result
------------|------------
ppc/g3beige | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning.
ppc/ppce500 | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning.
ppc64le/pseries | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning.
ppc64le/powernv | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning.
ppc64/pseries | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning.
ppc64/powernv | 165 test(s): 158 passed, 7 skipped, 0 failed => status: warning.
- run-user
(Tested with -Os, -O0 and -O2)
// for 32-bit PowerPC
$ for arch in powerpc ppc; do make run-user ARCH=$arch CROSS_COMPILE=powerpc-linux-gnu- ; done | grep status
165 test(s): 157 passed, 8 skipped, 0 failed => status: warning
165 test(s): 157 passed, 8 skipped, 0 failed => status: warning
// for 64-bit big-endian PowerPC and 64-bit little-endian PowerPC
$ for arch in ppc64 ppc64le; do make run-user ARCH=$arch CROSS_COMPILE=powerpc64le-linux-gnu- ; done | grep status
165 test(s): 157 passed, 8 skipped, 0 failed => status: warning
165 test(s): 157 passed, 8 skipped, 0 failed => status: warning
Changes from v1 --> v2:
- tools/nolibc: add support for powerpc
Add missing arch-powerpc.h lines to arch.h
Align with the other arch-<ARCH>.h, naming the variables
with more meaningful words, such as _ret, _num, _arg1 ...
Clean up the syscall instructions
No line from musl now.
Suggestons from Thomas
* tools/nolibc: add support for pppc64
No change
* selftests/nolibc: add extra configs customize support
To reduce complexity, merge the commands from the new extraconfig
target to defconfig target and drop the extconfig target completely.
Derived from Willy's suggestion of the tinyconfig patchset
* selftests/nolibc: add XARCH and ARCH mapping support
To reduce complexity, let's use XARCH internally and only reserve
ARCH as the input variable.
Derived from Willy's suggestion
* selftests/nolibc: add test support for powerpc
Add ppc as the default 32-bit variant for powerpc target, allow pass
ARCH=ppc or ARCH=powerpc to test 32-bit powerpc
Derived from Willy's suggestion
* selftests/nolibc: add test support for pppc64le
Rename powerpc64le to ppc64le
Suggestion from Willy
* selftests/nolibc: add test support for pppc64
Rename powerpc64 to ppc64
Suggestion from Willy
Best regards,
Zhangjin
---
[1]: https://lore.kernel.org/lkml/cover.1689713175.git.falcon@tinylab.org/
Zhangjin Wu (7):
tools/nolibc: add support for powerpc
tools/nolibc: add support for powerpc64
selftests/nolibc: add extra configs customize support
selftests/nolibc: add XARCH and ARCH mapping support
selftests/nolibc: add test support for ppc
selftests/nolibc: add test support for ppc64le
selftests/nolibc: add test support for ppc64
tools/include/nolibc/arch-powerpc.h | 202 ++++++++++++++++++++++++
tools/include/nolibc/arch.h | 2 +
tools/testing/selftests/nolibc/Makefile | 48 +++++-
3 files changed, 244 insertions(+), 8 deletions(-)
create mode 100644 tools/include/nolibc/arch-powerpc.h
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 1/7] tools/nolibc: add support for powerpc
2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
@ 2023-07-26 14:49 ` Zhangjin Wu
2023-07-26 14:50 ` [PATCH v2 2/7] tools/nolibc: add support for powerpc64 Zhangjin Wu
` (5 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:49 UTC (permalink / raw)
To: w
Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas,
Thomas Weißschuh
Both syscall declarations and _start code definition are added for
powerpc to nolibc.
Like mips, powerpc uses a register (exactly, the summary overflow bit)
to record the error occurred, and uses another register to return the
value [1]. So, the return value of every syscall declaration must be
normalized to easier the __sysret helper, return -value when there is an
error, otheriwse, return value directly.
Glibc and musl use different methods to check the summary overflow bit,
glibc (sysdeps/unix/sysv/linux/powerpc/sysdep.h) saves the cr register
to r0 at first, and then check the summary overflow bit in cr0:
mfcr r0
r0 & (1 << 28) ? -r3 : r3
-->
10003c14: 7c 00 00 26 mfcr r0
10003c18: 74 09 10 00 andis. r9,r0,4096
10003c1c: 41 82 00 08 beq 0x10003c24
10003c20: 7c 63 00 d0 neg r3,r3
Musl (arch/powerpc/syscall_arch.h) directly checks the summary overflow
bit with the 'bns' instruction, it is smaller:
/* no summary overflow bit means no error, return value directly */
bns+ 1f
/* otherwise, return negated value */
neg r3, r3
1:
-->
10000418: 40 a3 00 08 bns 0x10000420
1000041c: 7c 63 00 d0 neg r3,r3
Like musl, Linux (arch/powerpc/include/asm/vdso/gettimeofday.h) uses the
same method for do_syscall_2() too.
Here applies the second method to get smaller size.
[1]: https://man7.org/linux/man-pages/man2/syscall.2.html
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/include/nolibc/arch-powerpc.h | 188 ++++++++++++++++++++++++++++
tools/include/nolibc/arch.h | 2 +
2 files changed, 190 insertions(+)
create mode 100644 tools/include/nolibc/arch-powerpc.h
diff --git a/tools/include/nolibc/arch-powerpc.h b/tools/include/nolibc/arch-powerpc.h
new file mode 100644
index 000000000000..caa943e1521a
--- /dev/null
+++ b/tools/include/nolibc/arch-powerpc.h
@@ -0,0 +1,188 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * PowerPC specific definitions for NOLIBC
+ * Copyright (C) 2023 Zhangjin Wu <falcon@tinylab.org>
+ */
+
+#ifndef _NOLIBC_ARCH_POWERPC_H
+#define _NOLIBC_ARCH_POWERPC_H
+
+#include "compiler.h"
+#include "crt.h"
+
+/* Syscalls for PowerPC :
+ * - stack is 16-byte aligned
+ * - syscall number is passed in r0
+ * - arguments are in r3, r4, r5, r6, r7, r8, r9
+ * - the system call is performed by calling "sc"
+ * - syscall return comes in r3, and the summary overflow bit is checked
+ * to know if an error occurred, in which case errno is in r3.
+ * - the arguments are cast to long and assigned into the target
+ * registers which are then simply passed as registers to the asm code,
+ * so that we don't have to experience issues with register constraints.
+ */
+
+#define _NOLIBC_SYSCALL_CLOBBERLIST \
+ "memory", "cr0", "r12", "r11", "r10", "r9"
+
+#define my_syscall0(num) \
+({ \
+ register long _ret __asm__ ("r3"); \
+ register long _num __asm__ ("r0") = (num); \
+ \
+ __asm__ volatile ( \
+ " sc\n" \
+ " bns+ 1f\n" \
+ " neg %0, %0\n" \
+ "1:\n" \
+ : "=r"(_ret), "+r"(_num) \
+ : \
+ : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6", "r5", "r4" \
+ ); \
+ _ret; \
+})
+
+#define my_syscall1(num, arg1) \
+({ \
+ register long _ret __asm__ ("r3"); \
+ register long _num __asm__ ("r0") = (num); \
+ register long _arg1 __asm__ ("r3") = (long)(arg1); \
+ \
+ __asm__ volatile ( \
+ " sc\n" \
+ " bns+ 1f\n" \
+ " neg %0, %0\n" \
+ "1:\n" \
+ : "=r"(_ret), "+r"(_num) \
+ : "0"(_arg1) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6", "r5", "r4" \
+ ); \
+ _ret; \
+})
+
+
+#define my_syscall2(num, arg1, arg2) \
+({ \
+ register long _ret __asm__ ("r3"); \
+ register long _num __asm__ ("r0") = (num); \
+ register long _arg1 __asm__ ("r3") = (long)(arg1); \
+ register long _arg2 __asm__ ("r4") = (long)(arg2); \
+ \
+ __asm__ volatile ( \
+ " sc\n" \
+ " bns+ 1f\n" \
+ " neg %0, %0\n" \
+ "1:\n" \
+ : "=r"(_ret), "+r"(_num), "+r"(_arg2) \
+ : "0"(_arg1) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6", "r5" \
+ ); \
+ _ret; \
+})
+
+
+#define my_syscall3(num, arg1, arg2, arg3) \
+({ \
+ register long _ret __asm__ ("r3"); \
+ register long _num __asm__ ("r0") = (num); \
+ register long _arg1 __asm__ ("r3") = (long)(arg1); \
+ register long _arg2 __asm__ ("r4") = (long)(arg2); \
+ register long _arg3 __asm__ ("r5") = (long)(arg3); \
+ \
+ __asm__ volatile ( \
+ " sc\n" \
+ " bns+ 1f\n" \
+ " neg %0, %0\n" \
+ "1:\n" \
+ : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3) \
+ : "0"(_arg1) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7", "r6" \
+ ); \
+ _ret; \
+})
+
+
+#define my_syscall4(num, arg1, arg2, arg3, arg4) \
+({ \
+ register long _ret __asm__ ("r3"); \
+ register long _num __asm__ ("r0") = (num); \
+ register long _arg1 __asm__ ("r3") = (long)(arg1); \
+ register long _arg2 __asm__ ("r4") = (long)(arg2); \
+ register long _arg3 __asm__ ("r5") = (long)(arg3); \
+ register long _arg4 __asm__ ("r6") = (long)(arg4); \
+ \
+ __asm__ volatile ( \
+ " sc\n" \
+ " bns+ 1f\n" \
+ " neg %0, %0\n" \
+ "1:\n" \
+ : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3), \
+ "+r"(_arg4) \
+ : "0"(_arg1) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST, "r8", "r7" \
+ ); \
+ _ret; \
+})
+
+
+#define my_syscall5(num, arg1, arg2, arg3, arg4, arg5) \
+({ \
+ register long _ret __asm__ ("r3"); \
+ register long _num __asm__ ("r0") = (num); \
+ register long _arg1 __asm__ ("r3") = (long)(arg1); \
+ register long _arg2 __asm__ ("r4") = (long)(arg2); \
+ register long _arg3 __asm__ ("r5") = (long)(arg3); \
+ register long _arg4 __asm__ ("r6") = (long)(arg4); \
+ register long _arg5 __asm__ ("r7") = (long)(arg5); \
+ \
+ __asm__ volatile ( \
+ " sc\n" \
+ " bns+ 1f\n" \
+ " neg %0, %0\n" \
+ "1:\n" \
+ : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3), \
+ "+r"(_arg4), "+r"(_arg5) \
+ : "0"(_arg1) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST, "r8" \
+ ); \
+ _ret; \
+})
+
+#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \
+({ \
+ register long _ret __asm__ ("r3"); \
+ register long _num __asm__ ("r0") = (num); \
+ register long _arg1 __asm__ ("r3") = (long)(arg1); \
+ register long _arg2 __asm__ ("r4") = (long)(arg2); \
+ register long _arg3 __asm__ ("r5") = (long)(arg3); \
+ register long _arg4 __asm__ ("r6") = (long)(arg4); \
+ register long _arg5 __asm__ ("r7") = (long)(arg5); \
+ register long _arg6 __asm__ ("r8") = (long)(arg6); \
+ \
+ __asm__ volatile ( \
+ " sc\n" \
+ " bns+ 1f\n" \
+ " neg %0, %0\n" \
+ "1:\n" \
+ : "=r"(_ret), "+r"(_num), "+r"(_arg2), "+r"(_arg3), \
+ "+r"(_arg4), "+r"(_arg5), "+r"(_arg6) \
+ : "0"(_arg1) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _ret; \
+})
+
+/* startup code */
+void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void)
+{
+ __asm__ volatile (
+ "mr 3, 1\n" /* save stack pointer to r3, as arg1 of _start_c */
+ "clrrwi 1, 1, 4\n" /* align the stack to 16 bytes */
+ "li 0, 0\n" /* zero the frame pointer */
+ "stwu 1, -16(1)\n" /* the initial stack frame */
+ "bl _start_c\n" /* transfer to c runtime */
+ );
+ __builtin_unreachable();
+}
+
+#endif /* _NOLIBC_ARCH_POWERPC_H */
diff --git a/tools/include/nolibc/arch.h b/tools/include/nolibc/arch.h
index 82b43935650f..e276fb0680af 100644
--- a/tools/include/nolibc/arch.h
+++ b/tools/include/nolibc/arch.h
@@ -25,6 +25,8 @@
#include "arch-aarch64.h"
#elif defined(__mips__) && defined(_ABIO32)
#include "arch-mips.h"
+#elif defined(__powerpc__)
+#include "arch-powerpc.h"
#elif defined(__riscv)
#include "arch-riscv.h"
#elif defined(__s390x__)
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 2/7] tools/nolibc: add support for powerpc64
2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
2023-07-26 14:49 ` [PATCH v2 1/7] tools/nolibc: add support for powerpc Zhangjin Wu
@ 2023-07-26 14:50 ` Zhangjin Wu
2023-07-26 14:52 ` [PATCH v2 3/7] selftests/nolibc: add extra configs customize support Zhangjin Wu
` (4 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:50 UTC (permalink / raw)
To: w
Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas,
Thomas Weißschuh
This follows the 64-bit PowerPC ABI [1], refers to the slides: "A new
ABI for little-endian PowerPC64 Design & Implementation" [2] and the
musl code in arch/powerpc64/crt_arch.h.
Firstly, stdu and clrrdi are used instead of stwu and clrrwi for
powerpc64.
Second, the stack frame size is increased to 32 bytes for powerpc64, 32
bytes is the minimal stack frame size supported described in [2].
Besides, the TOC pointer (GOT pointer) must be saved to r2.
This works on both little endian and big endian 64-bit PowerPC.
[1]: https://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.pdf
[2]: https://www.llvm.org/devmtg/2014-04/PDFs/Talks/Euro-LLVM-2014-Weigand.pdf
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/include/nolibc/arch-powerpc.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/tools/include/nolibc/arch-powerpc.h b/tools/include/nolibc/arch-powerpc.h
index caa943e1521a..d783ed0b5dbd 100644
--- a/tools/include/nolibc/arch-powerpc.h
+++ b/tools/include/nolibc/arch-powerpc.h
@@ -175,6 +175,19 @@
/* startup code */
void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_stack_protector _start(void)
{
+#ifdef __powerpc64__
+ /* On 64-bit PowerPC, save TOC/GOT pointer to r2 */
+ extern char TOC __asm__ (".TOC.");
+ register volatile long r2 __asm__ ("r2") = (void *)&TOC - (void *)_start;
+
+ __asm__ volatile (
+ "mr 3, 1\n" /* save stack pointer to r3, as arg1 of _start_c */
+ "clrrdi 1, 1, 4\n" /* align the stack to 16 bytes */
+ "li 0, 0\n" /* zero the frame pointer */
+ "stdu 1, -32(1)\n" /* the initial stack frame */
+ "bl _start_c\n" /* transfer to c runtime */
+ );
+#else
__asm__ volatile (
"mr 3, 1\n" /* save stack pointer to r3, as arg1 of _start_c */
"clrrwi 1, 1, 4\n" /* align the stack to 16 bytes */
@@ -182,6 +195,7 @@ void __attribute__((weak, noreturn, optimize("Os", "omit-frame-pointer"))) __no_
"stwu 1, -16(1)\n" /* the initial stack frame */
"bl _start_c\n" /* transfer to c runtime */
);
+#endif
__builtin_unreachable();
}
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 3/7] selftests/nolibc: add extra configs customize support
2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
2023-07-26 14:49 ` [PATCH v2 1/7] tools/nolibc: add support for powerpc Zhangjin Wu
2023-07-26 14:50 ` [PATCH v2 2/7] tools/nolibc: add support for powerpc64 Zhangjin Wu
@ 2023-07-26 14:52 ` Zhangjin Wu
2023-07-26 14:54 ` [PATCH v2 4/7] selftests/nolibc: add XARCH and ARCH mapping support Zhangjin Wu
` (3 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:52 UTC (permalink / raw)
To: w
Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas,
Thomas Weißschuh
The default DEFCONFIG_<ARCH> may not always work for all architectures,
some architectures require to add extra kernel config options, this
allows to add extra options in the defconfig target.
It allows to customize extra kernel config options via the common
common.config and the architecture specific <ARCH>.config, at last
trigger 'allnoconfig' to let them take effect with missing config
options as disabled.
The scripts/kconfig/merge_config.sh tool is used to merge the extra
config files.
Suggested-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/lkml/67eb70d4-c9ff-4afc-bac7-7f36cc2c81bc@t-8ch.de/
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/testing/selftests/nolibc/Makefile | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index f42adef87e12..9576f1a0a98d 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -39,6 +39,9 @@ DEFCONFIG_s390 = defconfig
DEFCONFIG_loongarch = defconfig
DEFCONFIG = $(DEFCONFIG_$(ARCH))
+# extra kernel config files under configs/, include common + architecture specific
+EXTCONFIG = common.config $(ARCH).config
+
# optional tests to run (default = all)
TEST =
@@ -161,6 +164,8 @@ initramfs: nolibc-test
defconfig:
$(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) mrproper $(DEFCONFIG) prepare
+ $(Q)$(srctree)/scripts/kconfig/merge_config.sh -O "$(srctree)" -m "$(srctree)/.config" $(foreach c,$(EXTCONFIG),$(wildcard $(CURDIR)/configs/$c))
+ $(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) KCONFIG_ALLCONFIG="$(srctree)/.config" allnoconfig
kernel: initramfs
$(Q)$(MAKE) -C $(srctree) ARCH=$(ARCH) CC=$(CC) CROSS_COMPILE=$(CROSS_COMPILE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 4/7] selftests/nolibc: add XARCH and ARCH mapping support
2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
` (2 preceding siblings ...)
2023-07-26 14:52 ` [PATCH v2 3/7] selftests/nolibc: add extra configs customize support Zhangjin Wu
@ 2023-07-26 14:54 ` Zhangjin Wu
2023-07-26 15:39 ` Zhangjin Wu
2023-07-26 14:55 ` [PATCH v2 5/7] selftests/nolibc: add test support for ppc Zhangjin Wu
` (2 subsequent siblings)
6 siblings, 1 reply; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:54 UTC (permalink / raw)
To: w
Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas,
Thomas Weißschuh
Most of the CPU architectures have different variants, but kernel
usually only accept parts of them via the ARCH variable, the others
should be customized via kernel config file.
To simplify testing, the external ARCH variable is extended to accept
more CPU variants from user's input, a new internal XARCH variable is
added to save users' ARCH input and used to customize variant specific
variables, at last convert XARCH to the internal ARCH variable
acceptable by kernel:
e.g. make run-user ARCH=<variants>
|
v
external ARCH from cmdline -> internal XARCH -> internal ARCH for kernel
|
`--> variant specific variables
XARCH and ARCH are carefully mapped to allow users to pass architecture
variants via external ARCH (or XARCH) from cmdline:
- From developers' perspective
- XARCH records the architecture variant from user's ARCH input, after
'override ARCH', ARCH is overridden by the one supported by kernel
- Map from XARCH to the kernel supported ARCH: 'ARCH_<XARCH> = <ARCH>'
- Configure a default variant for kernel supported ARCH: 'XARCH_<ARCH> = <XARCH>'
- From users' perspective
- ARCH (or XARCH) are architecture variants of a target architecture
- the variants are XARCH names from the "ARCH_<XARCH> = <ARCH>" mapping list
Suggested-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/lkml/20230702171715.GD16233@1wt.eu/
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/testing/selftests/nolibc/Makefile | 27 ++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
index 9576f1a0a98d..f04ec1cc132b 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -14,6 +14,14 @@ include $(srctree)/scripts/subarch.include
ARCH = $(SUBARCH)
endif
+# XARCH is used to save user-input ARCH variant
+# allow configure default variant for target ARCH
+XARCH := $(or $(XARCH_$(ARCH)),$(ARCH))
+
+# ARCH is supported by kernel
+# map from user-input variant to kernel-supported
+override ARCH := $(or $(ARCH_$(XARCH)),$(XARCH))
+
# kernel image names by architecture
IMAGE_i386 = arch/x86/boot/bzImage
IMAGE_x86_64 = arch/x86/boot/bzImage
@@ -24,7 +32,7 @@ IMAGE_mips = vmlinuz
IMAGE_riscv = arch/riscv/boot/Image
IMAGE_s390 = arch/s390/boot/bzImage
IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
-IMAGE = $(IMAGE_$(ARCH))
+IMAGE = $(IMAGE_$(XARCH))
IMAGE_NAME = $(notdir $(IMAGE))
# default kernel configurations that appear to be usable
@@ -37,10 +45,10 @@ DEFCONFIG_mips = malta_defconfig
DEFCONFIG_riscv = defconfig
DEFCONFIG_s390 = defconfig
DEFCONFIG_loongarch = defconfig
-DEFCONFIG = $(DEFCONFIG_$(ARCH))
+DEFCONFIG = $(DEFCONFIG_$(XARCH))
# extra kernel config files under configs/, include common + architecture specific
-EXTCONFIG = common.config $(ARCH).config
+EXTCONFIG = common.config $(XARCH).config
# optional tests to run (default = all)
TEST =
@@ -55,7 +63,7 @@ QEMU_ARCH_mips = mipsel # works with malta_defconfig
QEMU_ARCH_riscv = riscv64
QEMU_ARCH_s390 = s390x
QEMU_ARCH_loongarch = loongarch64
-QEMU_ARCH = $(QEMU_ARCH_$(ARCH))
+QEMU_ARCH = $(QEMU_ARCH_$(XARCH))
# QEMU_ARGS : some arch-specific args to pass to qemu
QEMU_ARGS_i386 = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
@@ -67,7 +75,7 @@ QEMU_ARGS_mips = -M malta -append "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=%)"
-QEMU_ARGS = $(QEMU_ARGS_$(ARCH)) $(QEMU_ARGS_EXTRA)
+QEMU_ARGS = $(QEMU_ARGS_$(XARCH)) $(QEMU_ARGS_EXTRA)
# OUTPUT is only set when run from the main makefile, otherwise
# it defaults to this nolibc directory.
@@ -84,7 +92,7 @@ CFLAGS_mips = -EL
CFLAGS_STACKPROTECTOR ?= $(call cc-option,-mstack-protector-guard=global $(call cc-option,-fstack-protector-all))
CFLAGS ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 \
$(call cc-option,-fno-stack-protector) \
- $(CFLAGS_$(ARCH)) $(CFLAGS_STACKPROTECTOR)
+ $(CFLAGS_$(XARCH)) $(CFLAGS_STACKPROTECTOR)
LDFLAGS := -s
REPORT ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \
@@ -102,7 +110,7 @@ help:
@echo " run-user runs the executable under QEMU (uses \$$ARCH, \$$TEST)"
@echo " initramfs prepare the initramfs with nolibc-test"
@echo " defconfig create a fresh new default config (uses \$$ARCH)"
- @echo " kernel (re)build the kernel with the initramfs (uses \$$ARCH)"
+ @echo " kernel (re)build the kernel with the initramfs (uses $$ARCH)"
@echo " run runs the kernel in QEMU after building it (uses \$$ARCH, \$$TEST)"
@echo " rerun runs a previously prebuilt kernel in QEMU (uses \$$ARCH, \$$TEST)"
@echo " clean clean the sysroot, initramfs, build and output files"
@@ -111,12 +119,13 @@ help:
@echo ""
@echo "Currently using the following variables:"
@echo " ARCH = $(ARCH)"
+ @echo " XARCH = $(XARCH)"
@echo " CROSS_COMPILE = $(CROSS_COMPILE)"
@echo " CC = $(CC)"
@echo " OUTPUT = $(OUTPUT)"
@echo " TEST = $(TEST)"
- @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$ARCH]"
- @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$ARCH]"
+ @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$XARCH]"
+ @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$XARCH]"
@echo ""
all: run
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 5/7] selftests/nolibc: add test support for ppc
2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
` (3 preceding siblings ...)
2023-07-26 14:54 ` [PATCH v2 4/7] selftests/nolibc: add XARCH and ARCH mapping support Zhangjin Wu
@ 2023-07-26 14:55 ` Zhangjin Wu
2023-07-26 15:29 ` Zhangjin Wu
2023-07-26 14:57 ` [PATCH v2 6/7] selftests/nolibc: add test support for ppc64le Zhangjin Wu
2023-07-26 14:58 ` [PATCH v2 7/7] selftests/nolibc: add test support for ppc64 Zhangjin Wu
6 siblings, 1 reply; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:55 UTC (permalink / raw)
To: w
Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas,
Thomas Weißschuh
The default qemu-system-ppc g3beige machine [1] is used to run 32-bit
powerpc kernel.
The pmac32_defconfig is used with extra PMACZILOG console options to
enable normal print.
Note, zImage doesn't boot due to "qemu-system-ppc: Some ROM regions are
overlapping" error, so, vmlinux is used instead.
Kernel uses ARCH=powerpc for both 32-bit and 64-bit PowerPC, here adds a
ppc variant for 32-bit PowerPC and use it as the default variant of
powerpc architecture.
Users can pass ARCH=powerpc or ARCH=ppc to test 32-bit PowerPC.
[1]: https://qemu.readthedocs.io/en/latest/system/ppc/powermac.html
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
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 f04ec1cc132b..0e9abb7f3d4f 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -16,10 +16,12 @@ endif
# XARCH is used to save user-input ARCH variant
# allow configure default variant for target ARCH
+XARCH_powerpc = ppc
XARCH := $(or $(XARCH_$(ARCH)),$(ARCH))
# ARCH is supported by kernel
# map from user-input variant to kernel-supported
+ARCH_ppc = powerpc
override ARCH := $(or $(ARCH_$(XARCH)),$(XARCH))
# kernel image names by architecture
@@ -29,6 +31,7 @@ IMAGE_x86 = arch/x86/boot/bzImage
IMAGE_arm64 = arch/arm64/boot/Image
IMAGE_arm = arch/arm/boot/zImage
IMAGE_mips = vmlinuz
+IMAGE_ppc = vmlinux
IMAGE_riscv = arch/riscv/boot/Image
IMAGE_s390 = arch/s390/boot/bzImage
IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
@@ -42,6 +45,7 @@ DEFCONFIG_x86 = defconfig
DEFCONFIG_arm64 = defconfig
DEFCONFIG_arm = multi_v7_defconfig
DEFCONFIG_mips = malta_defconfig
+DEFCONFIG_ppc = pmac32_defconfig
DEFCONFIG_riscv = defconfig
DEFCONFIG_s390 = defconfig
DEFCONFIG_loongarch = defconfig
@@ -60,6 +64,7 @@ QEMU_ARCH_x86 = x86_64
QEMU_ARCH_arm64 = aarch64
QEMU_ARCH_arm = arm
QEMU_ARCH_mips = mipsel # works with malta_defconfig
+QEMU_ARCH_ppc = ppc
QEMU_ARCH_riscv = riscv64
QEMU_ARCH_s390 = s390x
QEMU_ARCH_loongarch = loongarch64
@@ -72,6 +77,7 @@ 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_ppc = -M g3beige -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=%)"
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 6/7] selftests/nolibc: add test support for ppc64le
2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
` (4 preceding siblings ...)
2023-07-26 14:55 ` [PATCH v2 5/7] selftests/nolibc: add test support for ppc Zhangjin Wu
@ 2023-07-26 14:57 ` Zhangjin Wu
2023-07-26 14:58 ` [PATCH v2 7/7] selftests/nolibc: add test support for ppc64 Zhangjin Wu
6 siblings, 0 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:57 UTC (permalink / raw)
To: w
Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas,
Thomas Weißschuh
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.
Kernel uses ARCH=powerpc for both 32-bit and 64-bit PowerPC, here adds a
ppc64le variant for little endian 64-bit PowerPC, users can pass
ARCH=ppc64le to test it.
Note, since the VSX support may be disabled in kernel side, to avoid
"illegal instruction" errors due to missing VSX kernel support, let's
simply let compiler not generate vector/scalar (VSX) instructions via
the '-mno-vsx' option.
[1]: https://qemu.readthedocs.io/en/latest/system/ppc/powernv.html
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
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 0e9abb7f3d4f..cd46b97983a4 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -22,6 +22,7 @@ XARCH := $(or $(XARCH_$(ARCH)),$(ARCH))
# ARCH is supported by kernel
# map from user-input variant to kernel-supported
ARCH_ppc = powerpc
+ARCH_ppc64le = powerpc
override ARCH := $(or $(ARCH_$(XARCH)),$(XARCH))
# kernel image names by architecture
@@ -32,6 +33,7 @@ IMAGE_arm64 = arch/arm64/boot/Image
IMAGE_arm = arch/arm/boot/zImage
IMAGE_mips = vmlinuz
IMAGE_ppc = vmlinux
+IMAGE_ppc64le = arch/powerpc/boot/zImage
IMAGE_riscv = arch/riscv/boot/Image
IMAGE_s390 = arch/s390/boot/bzImage
IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
@@ -46,6 +48,7 @@ DEFCONFIG_arm64 = defconfig
DEFCONFIG_arm = multi_v7_defconfig
DEFCONFIG_mips = malta_defconfig
DEFCONFIG_ppc = pmac32_defconfig
+DEFCONFIG_ppc64le = powernv_defconfig
DEFCONFIG_riscv = defconfig
DEFCONFIG_s390 = defconfig
DEFCONFIG_loongarch = defconfig
@@ -65,6 +68,7 @@ QEMU_ARCH_arm64 = aarch64
QEMU_ARCH_arm = arm
QEMU_ARCH_mips = mipsel # works with malta_defconfig
QEMU_ARCH_ppc = ppc
+QEMU_ARCH_ppc64le = ppc64le
QEMU_ARCH_riscv = riscv64
QEMU_ARCH_s390 = s390x
QEMU_ARCH_loongarch = loongarch64
@@ -78,6 +82,7 @@ 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_ppc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_ppc64le = -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=%)"
@@ -93,6 +98,7 @@ else
Q=@
endif
+CFLAGS_ppc64le = -m64 -mlittle-endian -Wl,-EL,-melf64ppc -mno-vsx
CFLAGS_s390 = -m64
CFLAGS_mips = -EL
CFLAGS_STACKPROTECTOR ?= $(call cc-option,-mstack-protector-guard=global $(call cc-option,-fstack-protector-all))
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 7/7] selftests/nolibc: add test support for ppc64
2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
` (5 preceding siblings ...)
2023-07-26 14:57 ` [PATCH v2 6/7] selftests/nolibc: add test support for ppc64le Zhangjin Wu
@ 2023-07-26 14:58 ` Zhangjin Wu
6 siblings, 0 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 14:58 UTC (permalink / raw)
To: w
Cc: falcon, arnd, linux-kernel, linux-kselftest, thomas,
Thomas Weißschuh
Here adds test support for big endian 64-bit PowerPC.
The powernv machine of qemu-system-ppc64 is used with
powernv_be_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.
Kernel uses ARCH=powerpc for both 32-bit and 64-bit PowerPC, here adds a
ppc64 variant for big endian 64-bit PowerPC, users can pass ARCH=ppc64
to test it.
Notes,
- differs from little endian 64-bit PowerPC, vmlinux is used instead of
zImage, because big endian zImage [2] only boot on qemu with x-vof=on
(added from qemu v7.0) and a fixup patch [3] for qemu v7.0.51:
- since the VSX support may be disabled in kernel side, to avoid
"illegal instruction" errors due to missing VSX kernel support, let's
simply let compiler not generate vector/scalar (VSX) instructions via
the '-mno-vsx' option.
- as 'man gcc' shows, '-mmultiple' is used to generate code that uses
the load multiple word instructions and the store multiple word
instructions. those instructions do not work when the processor is in
little-endian mode (except PPC740/PPC750), so, we only enable it
for big endian powerpc.
[1]: https://qemu.readthedocs.io/en/latest/system/ppc/powernv.html
[2]: https://github.com/linuxppc/issues/issues/402
[3]: https://lore.kernel.org/qemu-devel/20220504065536.3534488-1-aik@ozlabs.ru/
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
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 cd46b97983a4..b751e9fdf30d 100644
--- a/tools/testing/selftests/nolibc/Makefile
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -22,6 +22,7 @@ XARCH := $(or $(XARCH_$(ARCH)),$(ARCH))
# ARCH is supported by kernel
# map from user-input variant to kernel-supported
ARCH_ppc = powerpc
+ARCH_ppc64 = powerpc
ARCH_ppc64le = powerpc
override ARCH := $(or $(ARCH_$(XARCH)),$(XARCH))
@@ -33,6 +34,7 @@ IMAGE_arm64 = arch/arm64/boot/Image
IMAGE_arm = arch/arm/boot/zImage
IMAGE_mips = vmlinuz
IMAGE_ppc = vmlinux
+IMAGE_ppc64 = vmlinux
IMAGE_ppc64le = arch/powerpc/boot/zImage
IMAGE_riscv = arch/riscv/boot/Image
IMAGE_s390 = arch/s390/boot/bzImage
@@ -48,6 +50,7 @@ DEFCONFIG_arm64 = defconfig
DEFCONFIG_arm = multi_v7_defconfig
DEFCONFIG_mips = malta_defconfig
DEFCONFIG_ppc = pmac32_defconfig
+DEFCONFIG_ppc64 = powernv_be_defconfig
DEFCONFIG_ppc64le = powernv_defconfig
DEFCONFIG_riscv = defconfig
DEFCONFIG_s390 = defconfig
@@ -68,6 +71,7 @@ QEMU_ARCH_arm64 = aarch64
QEMU_ARCH_arm = arm
QEMU_ARCH_mips = mipsel # works with malta_defconfig
QEMU_ARCH_ppc = ppc
+QEMU_ARCH_ppc64 = ppc64
QEMU_ARCH_ppc64le = ppc64le
QEMU_ARCH_riscv = riscv64
QEMU_ARCH_s390 = s390x
@@ -82,6 +86,7 @@ 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_ppc = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_ppc64 = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
QEMU_ARGS_ppc64le = -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=%)"
@@ -98,6 +103,7 @@ else
Q=@
endif
+CFLAGS_ppc64 = -m64 -mbig-endian -Wl,-EB,-melf64ppc -mmultiple -mno-vsx
CFLAGS_ppc64le = -m64 -mlittle-endian -Wl,-EL,-melf64ppc -mno-vsx
CFLAGS_s390 = -m64
CFLAGS_mips = -EL
--
2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 5/7] selftests/nolibc: add test support for ppc
2023-07-26 14:55 ` [PATCH v2 5/7] selftests/nolibc: add test support for ppc Zhangjin Wu
@ 2023-07-26 15:29 ` Zhangjin Wu
0 siblings, 0 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 15:29 UTC (permalink / raw)
To: w; +Cc: falcon, arnd, linux-kernel, linux-kselftest, linux, thomas
Hi, Willy
I'm very sorry, the extra configs/powerpc.config file is missing in this
patch, perhaps a failed rebase introduced this issue.
Please don't merge it, to avoid manually merge another addtional patch, if no
other issues in this v2 series, I will send v3 immediately, just wait for your
feedbacks, no hurry.
Best regards,
Zhangjin
> The default qemu-system-ppc g3beige machine [1] is used to run 32-bit
> powerpc kernel.
>
> The pmac32_defconfig is used with extra PMACZILOG console options to
> enable normal print.
>
> Note, zImage doesn't boot due to "qemu-system-ppc: Some ROM regions are
> overlapping" error, so, vmlinux is used instead.
>
> Kernel uses ARCH=powerpc for both 32-bit and 64-bit PowerPC, here adds a
> ppc variant for 32-bit PowerPC and use it as the default variant of
> powerpc architecture.
>
> Users can pass ARCH=powerpc or ARCH=ppc to test 32-bit PowerPC.
>
> [1]: https://qemu.readthedocs.io/en/latest/system/ppc/powermac.html
>
> Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
> Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
> ---
> 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 f04ec1cc132b..0e9abb7f3d4f 100644
> --- a/tools/testing/selftests/nolibc/Makefile
> +++ b/tools/testing/selftests/nolibc/Makefile
> @@ -16,10 +16,12 @@ endif
>
> # XARCH is used to save user-input ARCH variant
> # allow configure default variant for target ARCH
> +XARCH_powerpc = ppc
> XARCH := $(or $(XARCH_$(ARCH)),$(ARCH))
>
> # ARCH is supported by kernel
> # map from user-input variant to kernel-supported
> +ARCH_ppc = powerpc
> override ARCH := $(or $(ARCH_$(XARCH)),$(XARCH))
>
> # kernel image names by architecture
> @@ -29,6 +31,7 @@ IMAGE_x86 = arch/x86/boot/bzImage
> IMAGE_arm64 = arch/arm64/boot/Image
> IMAGE_arm = arch/arm/boot/zImage
> IMAGE_mips = vmlinuz
> +IMAGE_ppc = vmlinux
> IMAGE_riscv = arch/riscv/boot/Image
> IMAGE_s390 = arch/s390/boot/bzImage
> IMAGE_loongarch = arch/loongarch/boot/vmlinuz.efi
> @@ -42,6 +45,7 @@ DEFCONFIG_x86 = defconfig
> DEFCONFIG_arm64 = defconfig
> DEFCONFIG_arm = multi_v7_defconfig
> DEFCONFIG_mips = malta_defconfig
> +DEFCONFIG_ppc = pmac32_defconfig
> DEFCONFIG_riscv = defconfig
> DEFCONFIG_s390 = defconfig
> DEFCONFIG_loongarch = defconfig
> @@ -60,6 +64,7 @@ QEMU_ARCH_x86 = x86_64
> QEMU_ARCH_arm64 = aarch64
> QEMU_ARCH_arm = arm
> QEMU_ARCH_mips = mipsel # works with malta_defconfig
> +QEMU_ARCH_ppc = ppc
> QEMU_ARCH_riscv = riscv64
> QEMU_ARCH_s390 = s390x
> QEMU_ARCH_loongarch = loongarch64
> @@ -72,6 +77,7 @@ 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_ppc = -M g3beige -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=%)"
> --
> 2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 4/7] selftests/nolibc: add XARCH and ARCH mapping support
2023-07-26 14:54 ` [PATCH v2 4/7] selftests/nolibc: add XARCH and ARCH mapping support Zhangjin Wu
@ 2023-07-26 15:39 ` Zhangjin Wu
0 siblings, 0 replies; 10+ messages in thread
From: Zhangjin Wu @ 2023-07-26 15:39 UTC (permalink / raw)
To: falcon; +Cc: arnd, linux-kernel, linux-kselftest, linux, thomas, w
> [...]
> Suggested-by: Willy Tarreau <w@1wt.eu>
> Link: https://lore.kernel.org/lkml/20230702171715.GD16233@1wt.eu/
> Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
> Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
> ---
> tools/testing/selftests/nolibc/Makefile | 27 ++++++++++++++++---------
> 1 file changed, 18 insertions(+), 9 deletions(-)
>
> [...]
> REPORT ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \
> @@ -102,7 +110,7 @@ help:
> @echo " run-user runs the executable under QEMU (uses \$$ARCH, \$$TEST)"
> @echo " initramfs prepare the initramfs with nolibc-test"
> @echo " defconfig create a fresh new default config (uses \$$ARCH)"
> - @echo " kernel (re)build the kernel with the initramfs (uses \$$ARCH)"
> + @echo " kernel (re)build the kernel with the initramfs (uses $$ARCH)"
and a wrongly removed '\' here.
Thanks,
Zhangjin
> @echo " run runs the kernel in QEMU after building it (uses \$$ARCH, \$$TEST)"
> @echo " rerun runs a previously prebuilt kernel in QEMU (uses \$$ARCH, \$$TEST)"
> @echo " clean clean the sysroot, initramfs, build and output files"
> @@ -111,12 +119,13 @@ help:
> @echo ""
> @echo "Currently using the following variables:"
> @echo " ARCH = $(ARCH)"
> + @echo " XARCH = $(XARCH)"
> @echo " CROSS_COMPILE = $(CROSS_COMPILE)"
> @echo " CC = $(CC)"
> @echo " OUTPUT = $(OUTPUT)"
> @echo " TEST = $(TEST)"
> - @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$ARCH]"
> - @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$ARCH]"
> + @echo " QEMU_ARCH = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$XARCH]"
> + @echo " IMAGE_NAME = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$XARCH]"
> @echo ""
>
> all: run
> --
> 2.25.1
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2023-07-26 15:39 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
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2023-07-26 14:48 [PATCH v2 0/7] tools/nolibc: add 32/64-bit powerpc support Zhangjin Wu
2023-07-26 14:49 ` [PATCH v2 1/7] tools/nolibc: add support for powerpc Zhangjin Wu
2023-07-26 14:50 ` [PATCH v2 2/7] tools/nolibc: add support for powerpc64 Zhangjin Wu
2023-07-26 14:52 ` [PATCH v2 3/7] selftests/nolibc: add extra configs customize support Zhangjin Wu
2023-07-26 14:54 ` [PATCH v2 4/7] selftests/nolibc: add XARCH and ARCH mapping support Zhangjin Wu
2023-07-26 15:39 ` Zhangjin Wu
2023-07-26 14:55 ` [PATCH v2 5/7] selftests/nolibc: add test support for ppc Zhangjin Wu
2023-07-26 15:29 ` Zhangjin Wu
2023-07-26 14:57 ` [PATCH v2 6/7] selftests/nolibc: add test support for ppc64le Zhangjin Wu
2023-07-26 14:58 ` [PATCH v2 7/7] selftests/nolibc: add test support for ppc64 Zhangjin Wu
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