tools/nolibc: arch-mips.h: shrink with _NOLIBC_SYSCALL_CLOBBERLIST
authorZhangjin Wu <falcon@tinylab.org>
Fri, 7 Jul 2023 14:54:26 +0000 (22:54 +0800)
committerWilly Tarreau <w@1wt.eu>
Wed, 23 Aug 2023 02:38:02 +0000 (04:38 +0200)
my_syscall<N> share the same long clobber list, define a macro for them.

Signed-off-by: Zhangjin Wu <falcon@tinylab.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
tools/include/nolibc/arch-mips.h

index 22aacc07b1fc259404ff0633ae3618719aa665f9..1848f57777c41570b4acc8875d82a3940795d556 100644 (file)
@@ -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;                                                 \
 })