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
Subject: [PATCH v3 07/12] tools/nolibc: arm: add missing my_syscall6
Date: Sat, 3 Jun 2023 16:09:41 +0800 [thread overview]
Message-ID: <75c37f86eb9ae5173d136676432d5ace3a8c54df.1685777982.git.falcon@tinylab.org> (raw)
In-Reply-To: <cover.1685777982.git.falcon@tinylab.org>
This is required by the coming removal of the oldselect and newselect
support.
pselect6/pselect6_time64 will be used unconditionally, they have 6
arguments.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/linux-riscv/bf3e07c1-75f5-425b-9124-f3f2b230e63a@app.fastmail.com/
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/include/nolibc/arch-arm.h | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/tools/include/nolibc/arch-arm.h b/tools/include/nolibc/arch-arm.h
index 45b89ffe8247..ca4c66987497 100644
--- a/tools/include/nolibc/arch-arm.h
+++ b/tools/include/nolibc/arch-arm.h
@@ -198,6 +198,29 @@ struct sys_stat_struct {
_arg1; \
})
+#define my_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \
+({ \
+ register long _num __asm__(_NOLIBC_SYSCALL_REG) = (num); \
+ register long _arg1 __asm__ ("r0") = (long)(arg1); \
+ register long _arg2 __asm__ ("r1") = (long)(arg2); \
+ register long _arg3 __asm__ ("r2") = (long)(arg3); \
+ register long _arg4 __asm__ ("r3") = (long)(arg4); \
+ register long _arg5 __asm__ ("r4") = (long)(arg5); \
+ register long _arg6 __asm__ ("r5") = (long)(arg6); \
+ \
+ __asm__ volatile ( \
+ _NOLIBC_THUMB_SET_R7 \
+ "svc #0\n" \
+ _NOLIBC_THUMB_RESTORE_R7 \
+ : "=r"(_arg1), "=r" (_num) \
+ : "r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
+ "r"(_arg6), "r"(_num) \
+ : "memory", "cc", "lr" \
+ ); \
+ _arg1; \
+})
+
+
char **environ __attribute__((weak));
const unsigned long *_auxv __attribute__((weak));
--
2.25.1
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2023-06-03 8:11 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-03 7:59 [PATCH v3 00/12] nolibc: add generic part1 of prepare for rv32 Zhangjin Wu
2023-06-03 8:00 ` [PATCH v3 01/12] selftests/nolibc: syscall_args: use generic __NR_statx Zhangjin Wu
2023-06-03 8:02 ` [PATCH v3 02/12] tools/nolibc: add missing nanoseconds support for __NR_statx Zhangjin Wu
2023-06-04 11:18 ` Willy Tarreau
2023-06-04 12:00 ` Thomas Weißschuh
2023-06-04 12:53 ` Willy Tarreau
2023-06-03 8:04 ` [PATCH v3 03/12] selftests/nolibc: allow specify extra arguments for qemu Zhangjin Wu
2023-06-03 8:05 ` [PATCH v3 04/12] selftests/nolibc: fix up compile warning with glibc on x86_64 Zhangjin Wu
2023-06-03 8:06 ` [PATCH v3 05/12] selftests/nolibc: not include limits.h for nolibc Zhangjin Wu
2023-06-03 8:08 ` [PATCH v3 06/12] selftests/nolibc: use INT_MAX instead of __INT_MAX__ Zhangjin Wu
2023-06-03 8:09 ` Zhangjin Wu [this message]
2023-06-03 8:11 ` [PATCH v3 08/12] tools/nolibc: open: fix up compile warning for arm Zhangjin Wu
2023-06-03 8:13 ` [PATCH v3 09/12] selftests/nolibc: support two errnos with EXPECT_SYSER2() Zhangjin Wu
2023-06-03 8:14 ` [PATCH v3 10/12] selftests/nolibc: remove gettimeofday_bad1/2 completely Zhangjin Wu
2023-06-03 8:16 ` [PATCH v3 11/12] selftests/nolibc: add new gettimeofday test cases Zhangjin Wu
2023-06-04 6:46 ` Thomas Weißschuh
[not found] ` <tencent_4668A50A08C3D31E7531619E@qq.com>
2023-06-04 9:24 ` Arnd Bergmann
2023-06-04 11:27 ` Willy Tarreau
2023-06-04 11:38 ` Arnd Bergmann
2023-06-04 11:46 ` Willy Tarreau
2023-06-05 11:12 ` Zhangjin Wu
2023-06-03 8:17 ` [PATCH v3 12/12] selftests/nolibc: test_fork: fix up duplicated print Zhangjin Wu
2023-06-04 6:49 ` [PATCH v3 00/12] nolibc: add generic part1 of prepare for rv32 Thomas Weißschuh
2023-06-04 12:54 ` Willy Tarreau
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=75c37f86eb9ae5173d136676432d5ace3a8c54df.1685777982.git.falcon@tinylab.org \
--to=falcon@tinylab.org \
--cc=arnd@arndb.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=thomas@t-8ch.de \
--cc=w@1wt.eu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).