libc-top-half/musl/arch/aarch64/syscall_arch.h

   1 #define __SYSCALL_LL_E(x) (x)
   2 #define __SYSCALL_LL_O(x) (x)
   3
   4 #define __asm_syscall(...) do { \
   5         __asm__ __volatile__ ( "svc 0" \
   6         : "=r"(x0) : __VA_ARGS__ : "memory", "cc"); \
   7         return x0; \
   8         } while (0)
   9
  10 static inline long __syscall0(long n)
  11 {
  12         register long x8 __asm__("x8") = n;
  13         register long x0 __asm__("x0");
  14         __asm_syscall("r"(x8));
  15 }
  16
  17 static inline long __syscall1(long n, long a)
  18 {
  19         register long x8 __asm__("x8") = n;
  20         register long x0 __asm__("x0") = a;
  21         __asm_syscall("r"(x8), "0"(x0));
  22 }
  23
  24 static inline long __syscall2(long n, long a, long b)
  25 {
  26         register long x8 __asm__("x8") = n;
  27         register long x0 __asm__("x0") = a;
  28         register long x1 __asm__("x1") = b;
  29         __asm_syscall("r"(x8), "0"(x0), "r"(x1));
  30 }
  31
  32 static inline long __syscall3(long n, long a, long b, long c)
  33 {
  34         register long x8 __asm__("x8") = n;
  35         register long x0 __asm__("x0") = a;
  36         register long x1 __asm__("x1") = b;
  37         register long x2 __asm__("x2") = c;
  38         __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2));
  39 }
  40
  41 static inline long __syscall4(long n, long a, long b, long c, long d)
  42 {
  43         register long x8 __asm__("x8") = n;
  44         register long x0 __asm__("x0") = a;
  45         register long x1 __asm__("x1") = b;
  46         register long x2 __asm__("x2") = c;
  47         register long x3 __asm__("x3") = d;
  48         __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3));
  49 }
  50
  51 static inline long __syscall5(long n, long a, long b, long c, long d, long e)
  52 {
  53         register long x8 __asm__("x8") = n;
  54         register long x0 __asm__("x0") = a;
  55         register long x1 __asm__("x1") = b;
  56         register long x2 __asm__("x2") = c;
  57         register long x3 __asm__("x3") = d;
  58         register long x4 __asm__("x4") = e;
  59         __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4));
  60 }
  61
  62 static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
  63 {
  64         register long x8 __asm__("x8") = n;
  65         register long x0 __asm__("x0") = a;
  66         register long x1 __asm__("x1") = b;
  67         register long x2 __asm__("x2") = c;
  68         register long x3 __asm__("x3") = d;
  69         register long x4 __asm__("x4") = e;
  70         register long x5 __asm__("x5") = f;
  71         __asm_syscall("r"(x8), "0"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4), "r"(x5));
  72 }
  73
  74 #define VDSO_USEFUL
  75 #define VDSO_CGT_SYM "__kernel_clock_gettime"
  76 #define VDSO_CGT_VER "LINUX_2.6.39"
  77
  78 #define IPC_64 0