syscall overhaul part two - unify public and internal syscall interface

[musl] / arch / x86_64 / bits / syscall.h

diff --git a/arch/x86_64/bits/syscall.h b/arch/x86_64/bits/syscall.h
index ca75019..c6f1223 100644 (file)
--- a/arch/x86_64/bits/syscall.h
+++ b/arch/x86_64/bits/syscall.h
@@ -1,3 +1,67 @@
+#define __SYSCALL_LL(x) (x)
+
+static inline long __syscall0(long __n)
+{
+       unsigned long __ret;
+       __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n) : "rcx", "r11", "memory");
+       return __ret;
+}
+
+static inline long __syscall1(long __n, long __a1)
+{
+       unsigned long __ret;
+       __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1) : "rcx", "r11", "memory");
+       return __ret;
+}
+
+static inline long __syscall2(long __n, long __a1, long __a2)
+{
+       unsigned long __ret;
+       __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2)
+                                                 : "rcx", "r11", "memory");
+       return __ret;
+}
+
+static inline long __syscall3(long __n, long __a1, long __a2, long __a3)
+{
+       unsigned long __ret;
+       __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
+                                                 "d"(__a3) : "rcx", "r11", "memory");
+       return __ret;
+}
+
+static inline long __syscall4(long __n, long __a1, long __a2, long __a3, long __a4)
+{
+       unsigned long __ret;
+       register long __r10 __asm__("r10") = __a4;
+       __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
+                                                 "d"(__a3), "r"(__r10): "rcx", "r11", "memory");
+       return __ret;
+}
+
+static inline long __syscall5(long __n, long __a1, long __a2, long __a3, long __a4, long __a5)
+{
+       unsigned long __ret;
+       register long __r10 __asm__("r10") = __a4;
+       register long__ r8 __asm__("r8") = __a5;
+       __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
+                                                 "d"(__a3), "r"(__r10), "r"(__r8) : "rcx", "r11", "memory");
+       return __ret;
+}
+
+static inline long __syscall6(long __n, long __a1, long __a2, long __a3, long __a4, long __a5, long __a6)
+{
+       unsigned long __ret;
+       register long __r10 __asm__("r10") = __a4;
+       register long __r8 __asm__("r8") = __a5;
+       register long __r9 __asm__("r9") = __a6;
+       __asm__ __volatile__ ("syscall" : "=a"(__ret) : "a"(__n), "D"(__a1), "S"(__a2),
+                                                 "d"(__a3), "r"(__r10), "r"(__r8), "r"(__r9) : "rcx", "r11", "memory");
+       return __ret;
+}
+
+#define __socketcall(nm, a, b, c, d, e, f) syscall(__NR_##nm, a, b, c, d, e, f)
+
 #define __NR_read                              0
 #define __NR_write                             1
 #define __NR_open                              2