From: Zhangjin Wu <falcon@tinylab.org>
To: w@1wt.eu
Cc: falcon@tinylab.org, arnd@arndb.de, david.laight@aculab.com,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-riscv@lists.infradead.org, thomas@t-8ch.de
Subject: [PATCH v6 04/15] tools/nolibc: arch-mips.h: shrink with _NOLIBC_SYSCALL_CLOBBERLIST
Date: Fri, 7 Jul 2023 22:54:26 +0800 [thread overview]
Message-ID: <3ba25ebd88fcef91a6a411472684b4b30e6018ef.1688739492.git.falcon@tinylab.org> (raw)
In-Reply-To: <cover.1688739492.git.falcon@tinylab.org>
my_syscall<N> share the same long clobber list, define a macro for them.
Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
---
tools/include/nolibc/arch-mips.h | 22 ++++++++++------------
1 file changed, 10 insertions(+), 12 deletions(-)
diff --git a/tools/include/nolibc/arch-mips.h b/tools/include/nolibc/arch-mips.h
index 22aacc07b1fc..1848f57777c4 100644
--- a/tools/include/nolibc/arch-mips.h
+++ b/tools/include/nolibc/arch-mips.h
@@ -57,6 +57,10 @@ struct sys_stat_struct {
* don't have to experience issues with register constraints.
*/
+#define _NOLIBC_SYSCALL_CLOBBERLIST \
+ "memory", "cc", "at", "v1", "hi", "lo", \
+ "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9"
+
#define my_syscall0(num) \
({ \
register long _num __asm__ ("v0") = (num); \
@@ -68,8 +72,7 @@ struct sys_stat_struct {
"addiu $sp, $sp, 32\n" \
: "=r"(_num), "=r"(_arg4) \
: "r"(_num) \
- : "memory", "cc", "at", "v1", "hi", "lo", \
- "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
); \
_arg4 ? -_num : _num; \
})
@@ -87,8 +90,7 @@ struct sys_stat_struct {
: "=r"(_num), "=r"(_arg4) \
: "0"(_num), \
"r"(_arg1) \
- : "memory", "cc", "at", "v1", "hi", "lo", \
- "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
); \
_arg4 ? -_num : _num; \
})
@@ -107,8 +109,7 @@ struct sys_stat_struct {
: "=r"(_num), "=r"(_arg4) \
: "0"(_num), \
"r"(_arg1), "r"(_arg2) \
- : "memory", "cc", "at", "v1", "hi", "lo", \
- "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
); \
_arg4 ? -_num : _num; \
})
@@ -128,8 +129,7 @@ struct sys_stat_struct {
: "=r"(_num), "=r"(_arg4) \
: "0"(_num), \
"r"(_arg1), "r"(_arg2), "r"(_arg3) \
- : "memory", "cc", "at", "v1", "hi", "lo", \
- "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
); \
_arg4 ? -_num : _num; \
})
@@ -149,8 +149,7 @@ struct sys_stat_struct {
: "=r" (_num), "=r"(_arg4) \
: "0"(_num), \
"r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4) \
- : "memory", "cc", "at", "v1", "hi", "lo", \
- "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
); \
_arg4 ? -_num : _num; \
})
@@ -172,8 +171,7 @@ struct sys_stat_struct {
: "=r" (_num), "=r"(_arg4) \
: "0"(_num), \
"r"(_arg1), "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5) \
- : "memory", "cc", "at", "v1", "hi", "lo", \
- "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9" \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
); \
_arg4 ? -_num : _num; \
})
--
2.25.1
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next prev parent reply other threads:[~2023-07-07 14:54 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-07 14:49 [PATCH v6 00/15] tools/nolibc: add a new syscall helper Zhangjin Wu
2023-07-07 14:50 ` [PATCH v6 01/15] tools/nolibc: arch-*.h: fix up code indent errors Zhangjin Wu
2023-07-09 9:17 ` Willy Tarreau
2023-07-07 14:52 ` [PATCH v6 02/15] toolc/nolibc: arch-*.h: clean up whitespaces after __asm__ Zhangjin Wu
2023-07-07 14:53 ` [PATCH v6 03/15] tools/nolibc: arch-loongarch.h: shrink with _NOLIBC_SYSCALL_CLOBBERLIST Zhangjin Wu
2023-07-07 14:54 ` Zhangjin Wu [this message]
2023-07-07 14:55 ` [PATCH v6 05/15] tools/nolibc: add missing my_syscall6() for mips Zhangjin Wu
2023-07-07 14:56 ` [PATCH v6 06/15] tools/nolibc: __sysret: support syscalls who return a pointer Zhangjin Wu
2023-07-07 14:58 ` [PATCH v6 07/15] tools/nolibc: clean up mmap() routine Zhangjin Wu
2023-07-07 14:59 ` [PATCH v6 08/15] tools/nolibc: clean up sbrk() routine Zhangjin Wu
2023-07-07 15:01 ` [PATCH v6 09/15] selftests/nolibc: export argv0 for some tests Zhangjin Wu
2023-07-07 15:02 ` [PATCH v6 10/15] selftests/nolibc: prepare: create /dev/zero Zhangjin Wu
2023-07-07 15:03 ` [PATCH v6 11/15] selftests/nolibc: add EXPECT_PTREQ, EXPECT_PTRNE and EXPECT_PTRER Zhangjin Wu
2023-07-07 15:04 ` [PATCH v6 12/15] selftests/nolibc: add sbrk_0 to test current brk getting Zhangjin Wu
2023-07-07 15:05 ` [PATCH v6 13/15] selftests/nolibc: add mmap_bad test case Zhangjin Wu
2023-07-09 9:15 ` Willy Tarreau
2023-07-09 18:33 ` Zhangjin Wu
2023-07-10 7:04 ` Willy Tarreau
2023-07-07 15:07 ` [PATCH v6 14/15] selftests/nolibc: add munmap_bad " Zhangjin Wu
2023-07-07 15:08 ` [PATCH v6 15/15] selftests/nolibc: add mmap_munmap_good " Zhangjin Wu
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