From: Zhangjin Wu <falcon@tinylab.org>
To: w@1wt.eu
Cc: david.laight@aculab.com, arnd@arndb.de, falcon@tinylab.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-riscv@lists.infradead.org, thomas@t-8ch.de
Subject: [PATCH v4 00/10] tools/nolibc: add a new syscall helper
Date: Mon, 19 Jun 2023 23:40:10 +0800 [thread overview]
Message-ID: <cover.1687187451.git.falcon@tinylab.org> (raw)
Hi, Thomas, David, Willy
Thanks very much for your kindly review.
This is the revision of v3 "tools/nolibc: add a new syscall helper" [1],
this mainly applies the suggestion from David in this reply [2] and
rebased everything on the dev.2023.06.14a branch of linux-rcu [3].
The old __sysret() doesn't support the syscalls with pointer return
value, this revision now supports such syscalls. The left mmap() syscall
is converted to use this new __sysret() with additional test cases.
Changes from v3 -> v4:
* tools/nolibc: sys.h: add a syscall return helper
tools/nolibc: unistd.h: apply __sysret() helper
tools/nolibc: sys.h: apply __sysret() helper
The original v3 series, no code change, except the Reviewed-by lines
from Thomas.
* tools/nolibc: unistd.h: reorder the syscall macros
reorder the syscall macros in using order and align most of them.
* tools/nolibc: add missing my_syscall6() for mips
required by mmap() syscall, this is the last missing my_syscall6().
* tools/nolibc: __sysret: support syscalls who return a pointer
Apply suggestion from David.
Let __sysret() also supports syscalls with pointer return value, so, the
return value is converted to unsigned long and the comparing of < 0 is
converted to the comparing of [(unsigned long)-MAX_ERRNO, (unsigned long)-1].
This also allows return a huge value (not pointer) with highest bit as 1.
It is able to merge this one to the first one if necessary.
* tools/nolibc: clean up mmap() support
Apply new __sysret(), clean up #ifdef and some macros.
* selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER
selftests/nolibc: add sbrk_0 to test current brk getting
selftests/nolibc: add mmap and munmap test cases
Add some mmap & munmap test cases and the corresponding helpers, to
verify one of the new helpers, a sbrk_0 test case is also added.
Best regards,
Zhangjin
---
[1]: https://lore.kernel.org/linux-riscv/87e7a391-b97b-4001-b12a-76d20790563e@t-8ch.de/
[2]: https://lore.kernel.org/linux-riscv/94dd5170929f454fbc0a10a2eb3b108d@AcuMS.aculab.com/
[3]: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/
Zhangjin Wu (10):
tools/nolibc: sys.h: add a syscall return helper
tools/nolibc: unistd.h: apply __sysret() helper
tools/nolibc: sys.h: apply __sysret() helper
tools/nolibc: unistd.h: reorder the syscall macros
tools/nolibc: add missing my_syscall6() for mips
tools/nolibc: __sysret: support syscalls who return a pointer
tools/nolibc: clean up mmap() support
selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER
selftests/nolibc: add sbrk_0 to test current brk getting
selftests/nolibc: add mmap and munmap test cases
tools/include/nolibc/arch-mips.h | 26 ++
tools/include/nolibc/nolibc.h | 9 +-
tools/include/nolibc/sys.h | 391 +++----------------
tools/include/nolibc/types.h | 11 +
tools/include/nolibc/unistd.h | 13 +-
tools/testing/selftests/nolibc/nolibc-test.c | 90 +++++
6 files changed, 191 insertions(+), 349 deletions(-)
--
2.25.1
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next reply other threads:[~2023-06-19 15:40 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-19 15:40 Zhangjin Wu [this message]
2023-06-19 15:41 ` [PATCH v4 01/10] tools/nolibc: sys.h: add a syscall return helper Zhangjin Wu
2023-06-19 15:42 ` [PATCH v4 02/10] tools/nolibc: unistd.h: apply __sysret() helper Zhangjin Wu
2023-06-19 15:44 ` [PATCH v4 03/10] tools/nolibc: sys.h: " Zhangjin Wu
2023-06-19 15:45 ` [PATCH v4 04/10] tools/nolibc: unistd.h: reorder the syscall macros Zhangjin Wu
2023-06-19 15:47 ` [PATCH v4 05/10] tools/nolibc: add missing my_syscall6() for mips Zhangjin Wu
2023-06-19 15:48 ` [PATCH v4 06/10] tools/nolibc: __sysret: support syscalls who return a pointer Zhangjin Wu
2023-06-19 15:51 ` [PATCH v4 07/10] tools/nolibc: clean up mmap() support Zhangjin Wu
2023-06-21 18:48 ` Thomas Weißschuh
2023-06-22 19:08 ` Zhangjin Wu
2023-06-19 15:52 ` [PATCH v4 08/10] selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER Zhangjin Wu
2023-06-19 15:54 ` [PATCH v4 09/10] selftests/nolibc: add sbrk_0 to test current brk getting Zhangjin Wu
2023-06-19 15:55 ` [PATCH v4 10/10] selftests/nolibc: add mmap and munmap test cases Zhangjin Wu
2023-06-19 16:14 ` Zhangjin Wu
2023-06-21 18:58 ` Thomas Weißschuh
2023-06-22 19:32 ` Zhangjin Wu
2023-06-22 19:56 ` Thomas Weißschuh
2023-06-24 7:47 ` Zhangjin Wu
2023-06-28 13:07 ` [PATCH v5 00/14] tools/nolibc: add a new syscall helper Zhangjin Wu
2023-06-28 13:08 ` [PATCH v5 01/14] tools/nolibc: sys.h: add a syscall return helper Zhangjin Wu
2023-06-28 13:11 ` [PATCH v5 02/14] tools/nolibc: unistd.h: apply __sysret() helper Zhangjin Wu
2023-06-28 13:13 ` [PATCH v5 03/14] tools/nolibc: sys.h: " Zhangjin Wu
2023-06-28 13:14 ` [PATCH v5 04/14] tools/nolibc: unistd.h: reorder the syscall macros Zhangjin Wu
2023-06-28 13:17 ` [PATCH v5 05/14] tools/nolibc: string.h: clean up multiple whitespaces with tab Zhangjin Wu
2023-06-28 13:19 ` [PATCH v5 06/14] tools/nolibc: arch-*.h: clean up multiple whitespaces Zhangjin Wu
2023-07-02 18:44 ` Willy Tarreau
2023-07-03 14:02 ` Zhangjin Wu
2023-06-28 13:22 ` [PATCH v5 07/14] tools/nolibc: arch-loongarch.h: shrink with SYSCALL_CLOBBERLIST Zhangjin Wu
2023-07-02 18:50 ` Willy Tarreau
2023-07-03 11:28 ` Zhangjin Wu
2023-06-28 13:31 ` [PATCH v5 08/14] tools/nolibc: arch-mips.h: " Zhangjin Wu
2023-06-28 13:37 ` [PATCH v5 09/14] tools/nolibc: add missing my_syscall6() for mips Zhangjin Wu
2023-07-02 18:55 ` Willy Tarreau
2023-07-03 10:13 ` Zhangjin Wu
2023-06-28 13:39 ` [PATCH v5 10/14] tools/nolibc: __sysret: support syscalls who return a pointer Zhangjin Wu
2023-07-02 19:17 ` Willy Tarreau
2023-07-03 8:36 ` Zhangjin Wu
2023-07-03 10:03 ` Willy Tarreau
2023-07-03 11:15 ` Zhangjin Wu
2023-06-28 13:41 ` [PATCH v5 11/14] tools/nolibc: clean up mmap() support Zhangjin Wu
2023-07-02 19:23 ` Willy Tarreau
2023-07-03 6:51 ` Zhangjin Wu
2023-06-28 13:44 ` [PATCH v5 12/14] selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER Zhangjin Wu
2023-06-28 13:46 ` [PATCH v5 13/14] selftests/nolibc: add sbrk_0 to test current brk getting Zhangjin Wu
2023-06-28 13:51 ` [PATCH v5 14/14] selftests/nolibc: add mmap and munmap test cases Zhangjin Wu
2023-07-02 19:33 ` Willy Tarreau
2023-07-03 6:03 ` Zhangjin Wu
2023-07-03 7:25 ` Willy Tarreau
2023-07-03 8:06 ` Zhangjin Wu
2023-07-03 8:20 ` Thomas Weißschuh
2023-07-03 9:15 ` Zhangjin Wu
2023-07-03 9:56 ` Willy Tarreau
2023-07-03 11:24 ` Zhangjin Wu
2023-07-02 19:34 ` [PATCH v5 00/14] tools/nolibc: add a new syscall helper Willy Tarreau
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