diff mbox series

[v6,04/15] tools/nolibc: arch-mips.h: shrink with _NOLIBC_SYSCALL_CLOBBERLIST

Message ID 3ba25ebd88fcef91a6a411472684b4b30e6018ef.1688739492.git.falcon@tinylab.org
State Accepted
Commit 8b9bdab635870e44fd0684be6e70056201f7bc0c
Headers show
Series tools/nolibc: add a new syscall helper | expand

Commit Message

Zhangjin Wu July 7, 2023, 2:54 p.m. UTC 
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 mbox series

Patch

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;                                                 \
 })