(INLINE_SYSCALL*): New.

(inline_syscall*): New.

diff --git a/sysdeps/unix/alpha/sysdep.h b/sysdeps/unix/alpha/sysdep.h
index f43c7f8..80cb3e2 100644 (file)
--- a/sysdeps/unix/alpha/sysdep.h
+++ b/sysdeps/unix/alpha/sysdep.h
@@ -109,4 +109,167 @@ __LABEL(name)                                     \
 
 #define MOVE(x,y)      mov x,y
 
-#endif
+#else /* !ASSEMBLER */
+
+/* Define a macro which expands inline into the wrapper code for a
+   system call.  */
+
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...)  INLINE_SYSCALL1(name, nr, args)
+
+#define INLINE_SYSCALL1(name, nr, args...)     \
+({                                             \
+       long _sc_ret, _sc_err;                  \
+       inline_syscall##nr(name, args);         \
+       if (_sc_err)                            \
+         {                                     \
+           __set_errno (_sc_ret);              \
+           _sc_ret = -1L;                      \
+         }                                     \
+       _sc_ret;                                \
+})
+
+#define inline_syscall_clobbers                                \
+       "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", \
+       "$22", "$23", "$24", "$25", "$27", "$28"
+
+/* It is moderately important optimization-wise to limit the lifetime
+   of the hard-register variables as much as possible.  Thus we copy
+   in/out as close to the asm as possible.  */
+
+#define inline_syscall0(name)                  \
+{                                              \
+       register long _sc_0 __asm__("$0");      \
+       register long _sc_19 __asm__("$19");    \
+                                               \
+       _sc_0 = __NR_##name;                    \
+       __asm__("callsys # %0 %1 <= %2"         \
+               : "=r"(_sc_0), "=r"(_sc_19)     \
+               : "0"(_sc_0)                    \
+               : inline_syscall_clobbers);     \
+       _sc_ret = _sc_0, _sc_err = _sc_19;      \
+}
+
+#define inline_syscall1(name,arg1)             \
+{                                              \
+       register long _sc_0 __asm__("$0");      \
+       register long _sc_16 __asm__("$16");    \
+       register long _sc_19 __asm__("$19");    \
+                                               \
+       _sc_0 = __NR_##name;                    \
+       _sc_16 = (long) (arg1);                 \
+       __asm__("callsys # %0 %1 <= %2 %3"      \
+               : "=r"(_sc_0), "=r"(_sc_19)     \
+               : "0"(_sc_0), "r"(_sc_16)       \
+               : inline_syscall_clobbers);     \
+       _sc_ret = _sc_0, _sc_err = _sc_19;      \
+}
+
+#define inline_syscall2(name,arg1,arg2)                        \
+{                                                      \
+       register long _sc_0 __asm__("$0");              \
+       register long _sc_16 __asm__("$16");            \
+       register long _sc_17 __asm__("$17");            \
+       register long _sc_19 __asm__("$19");            \
+                                                       \
+       _sc_0 = __NR_##name;                            \
+       _sc_16 = (long) (arg1);                         \
+       _sc_17 = (long) (arg2);                         \
+       __asm__("callsys # %0 %1 <= %2 %3 %4"           \
+               : "=r"(_sc_0), "=r"(_sc_19)             \
+               : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17)  \
+               : inline_syscall_clobbers);             \
+       _sc_ret = _sc_0, _sc_err = _sc_19;              \
+}
+
+#define inline_syscall3(name,arg1,arg2,arg3)           \
+{                                                      \
+       register long _sc_0 __asm__("$0");              \
+       register long _sc_16 __asm__("$16");            \
+       register long _sc_17 __asm__("$17");            \
+       register long _sc_18 __asm__("$18");            \
+       register long _sc_19 __asm__("$19");            \
+                                                       \
+       _sc_0 = __NR_##name;                            \
+       _sc_16 = (long) (arg1);                         \
+       _sc_17 = (long) (arg2);                         \
+       _sc_18 = (long) (arg3);                         \
+       __asm__("callsys # %0 %1 <= %2 %3 %4 %5"        \
+               : "=r"(_sc_0), "=r"(_sc_19)             \
+               : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17), \
+                 "r"(_sc_18)                           \
+               : inline_syscall_clobbers);             \
+       _sc_ret = _sc_0, _sc_err = _sc_19;              \
+}
+
+#define inline_syscall4(name,arg1,arg2,arg3,arg4)      \
+{                                                      \
+       register long _sc_0 __asm__("$0");              \
+       register long _sc_16 __asm__("$16");            \
+       register long _sc_17 __asm__("$17");            \
+       register long _sc_18 __asm__("$18");            \
+       register long _sc_19 __asm__("$19");            \
+                                                       \
+       _sc_0 = __NR_##name;                            \
+       _sc_16 = (long) (arg1);                         \
+       _sc_17 = (long) (arg2);                         \
+       _sc_18 = (long) (arg3);                         \
+       _sc_19 = (long) (arg4);                         \
+       __asm__("callsys # %0 %1 <= %2 %3 %4 %5 %6"     \
+               : "=r"(_sc_0), "=r"(_sc_19)             \
+               : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17), \
+                 "r"(_sc_18), "1"(_sc_19)              \
+               : inline_syscall_clobbers);             \
+       _sc_ret = _sc_0, _sc_err = _sc_19;              \
+}
+
+#define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5) \
+{                                                      \
+       register long _sc_0 __asm__("$0");              \
+       register long _sc_16 __asm__("$16");            \
+       register long _sc_17 __asm__("$17");            \
+       register long _sc_18 __asm__("$18");            \
+       register long _sc_19 __asm__("$19");            \
+       register long _sc_20 __asm__("$20");            \
+                                                       \
+       _sc_0 = __NR_##name;                            \
+       _sc_16 = (long) (arg1);                         \
+       _sc_17 = (long) (arg2);                         \
+       _sc_18 = (long) (arg3);                         \
+       _sc_19 = (long) (arg4);                         \
+       _sc_20 = (long) (arg5);                         \
+       __asm__("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7"  \
+               : "=r"(_sc_0), "=r"(_sc_19)             \
+               : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17), \
+                 "r"(_sc_18), "1"(_sc_19), "r"(_sc_20) \
+               : inline_syscall_clobbers);             \
+       _sc_ret = _sc_0, _sc_err = _sc_19;              \
+}
+
+#define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6)    \
+{                                                              \
+       register long _sc_0 __asm__("$0");                      \
+       register long _sc_16 __asm__("$16");                    \
+       register long _sc_17 __asm__("$17");                    \
+       register long _sc_18 __asm__("$18");                    \
+       register long _sc_19 __asm__("$19");                    \
+       register long _sc_20 __asm__("$20");                    \
+       register long _sc_21 __asm__("$21");                    \
+                                                               \
+       _sc_0 = __NR_##name;                                    \
+       _sc_16 = (long) (arg1);                                 \
+       _sc_17 = (long) (arg2);                                 \
+       _sc_18 = (long) (arg3);                                 \
+       _sc_19 = (long) (arg4);                                 \
+       _sc_20 = (long) (arg5);                                 \
+       _sc_21 = (long) (arg6);                                 \
+       __asm__("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7 %8"       \
+               : "=r"(_sc_0), "=r"(_sc_19)                     \
+               : "0"(_sc_0), "r"(_sc_16), "r"(_sc_17),         \
+                 "r"(_sc_18), "1"(_sc_19), "r"(_sc_20),        \
+                 "r"(_sc_21)                                   \
+               : inline_syscall_clobbers);                     \
+       _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#endif /* ASSEMBLER */