arch/x32/syscall_arch.h

   1 #define __SYSCALL_LL_E(x) (x)
   2 #define __SYSCALL_LL_O(x) (x)
   3
   4 #define __scc(X) sizeof(1?(X):0ULL) < 8 ? (unsigned long) (X) : (long long) (X)
   5 typedef long long syscall_arg_t;
   6 struct __timespec { long long tv_sec; long tv_nsec; };
   7 struct __timespec_kernel { long long tv_sec; long long tv_nsec; };
   8 #define __tsc(X) ((struct __timespec*)(unsigned long)(X))
   9 #define __fixup(X) do { if(X) { \
  10         ts->tv_sec = __tsc(X)->tv_sec; \
  11         ts->tv_nsec = __tsc(X)->tv_nsec; \
  12         (X) = (unsigned long)ts; } } while(0)
  13 #define __fixup_case_2 \
  14         case SYS_nanosleep: \
  15                 __fixup(a1); break; \
  16         case SYS_clock_settime: \
  17                 __fixup(a2); break;
  18 #define __fixup_case_3 \
  19         case SYS_clock_nanosleep: case SYS_rt_sigtimedwait: case SYS_ppoll: \
  20                 __fixup(a3); break; \
  21         case SYS_utimensat: \
  22                 if(a3) { \
  23                         ts[0].tv_sec = __tsc(a3)[0].tv_sec; \
  24                         ts[0].tv_nsec = __tsc(a3)[0].tv_nsec; \
  25                         ts[1].tv_sec = __tsc(a3)[1].tv_sec; \
  26                         ts[1].tv_nsec = __tsc(a3)[1].tv_nsec; \
  27                         a3 = (unsigned long)ts; \
  28                 } break;
  29 #define __fixup_case_4 \
  30         case SYS_futex: \
  31                 if((a2 & (~128 /* FUTEX_PRIVATE_FLAG */)) == 0 /* FUTEX_WAIT */) __fixup(a4); break;
  32 #define __fixup_case_5 \
  33         case SYS_mq_timedsend: case SYS_mq_timedreceive: case SYS_pselect6: \
  34                 __fixup(a5); break;
  35
  36 static __inline long __syscall0(long long n)
  37 {
  38         unsigned long ret;
  39         __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n) : "rcx", "r11", "memory");
  40         return ret;
  41 }
  42
  43 static __inline long __syscall1(long long n, long long a1)
  44 {
  45         unsigned long ret;
  46         __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1) : "rcx", "r11", "memory");
  47         return ret;
  48 }
  49
  50 static __inline long __syscall2(long long n, long long a1, long long a2)
  51 {
  52         unsigned long ret;
  53         struct __timespec_kernel ts[1];
  54         switch (n) {
  55                 __fixup_case_2;
  56         }
  57         __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2)
  58                                         : "rcx", "r11", "memory");
  59         return ret;
  60 }
  61
  62 static __inline long __syscall3(long long n, long long a1, long long a2, long long a3)
  63 {
  64         unsigned long ret;
  65         struct __timespec_kernel ts[2];
  66         switch (n) {
  67                 __fixup_case_2;
  68                 __fixup_case_3;
  69         }
  70         __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
  71                                                   "d"(a3) : "rcx", "r11", "memory");
  72         return ret;
  73 }
  74
  75 static __inline long __syscall4(long long n, long long a1, long long a2, long long a3,
  76                                      long long a4_)
  77 {
  78         unsigned long ret;
  79         register long long a4 __asm__("r10") = a4_;
  80         struct __timespec_kernel ts[2];
  81         switch (n) {
  82                 __fixup_case_2;
  83                 __fixup_case_3;
  84                 __fixup_case_4;
  85         }
  86         __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
  87                                           "d"(a3), "r"(a4): "rcx", "r11", "memory");
  88         return ret;
  89 }
  90
  91 static __inline long __syscall5(long long n, long long a1, long long a2, long long a3,
  92                                      long long a4_, long long a5_)
  93 {
  94         unsigned long ret;
  95         register long long a4 __asm__("r10") = a4_;
  96         register long long a5 __asm__("r8") = a5_;
  97         struct __timespec_kernel ts[2];
  98         switch (n) {
  99                 __fixup_case_2;
 100                 __fixup_case_3;
 101                 __fixup_case_4;
 102                 __fixup_case_5;
 103         }
 104         __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
 105                                           "d"(a3), "r"(a4), "r"(a5) : "rcx", "r11", "memory");
 106         return ret;
 107 }
 108
 109 static __inline long __syscall6(long long n, long long a1, long long a2, long long a3,
 110                                      long long a4_, long long a5_, long long a6_)
 111 {
 112         unsigned long ret;
 113         register long long a4 __asm__("r10") = a4_;
 114         register long long a5 __asm__("r8") = a5_;
 115         register long long a6 __asm__("r9") = a6_;
 116         struct __timespec_kernel ts[2];
 117         switch (n) {
 118                 __fixup_case_2;
 119                 __fixup_case_3;
 120                 __fixup_case_4;
 121                 __fixup_case_5;
 122         }
 123         __asm__ __volatile__ ("syscall" : "=a"(ret) : "a"(n), "D"(a1), "S"(a2),
 124                                           "d"(a3), "r"(a4), "r"(a5), "r"(a6) : "rcx", "r11", "memory");
 125         return ret;
 126 }