diff options
Diffstat (limited to 'libc/sysdeps')
| -rw-r--r-- | libc/sysdeps/linux/alpha/bits/syscalls.h | 192 |
1 files changed, 185 insertions, 7 deletions
diff --git a/libc/sysdeps/linux/alpha/bits/syscalls.h b/libc/sysdeps/linux/alpha/bits/syscalls.h index 62541b873..3c227e643 100644 --- a/libc/sysdeps/linux/alpha/bits/syscalls.h +++ b/libc/sysdeps/linux/alpha/bits/syscalls.h @@ -4,16 +4,194 @@ # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." #endif -#include <features.h> - -/* Do something very evil for now. Until we create our own syscall - * macros, short circuit bits/sysnum.h and use asm/unistd.h instead */ -#include <asm/unistd.h> - /* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel * header files. It also defines the traditional `SYS_<name>' macros for older * programs. */ #include <bits/sysnum.h> -#endif /* _BITS_SYSCALLS_H */ +#ifndef __set_errno +# define __set_errno(val) (*__errno_location ()) = (val) +#endif + +#ifndef __ASSEMBLER__ + +#define _syscall_return(type) \ + return (_sc_err ? __set_errno(_sc_ret), _sc_ret = -1L : 0), (type) _sc_ret + +#define _syscall_clobbers \ + "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", \ + "$22", "$23", "$24", "$25", "$27", "$28" \ + +#define _syscall0(type, name) \ +type name(void) \ +{ \ + long _sc_ret, _sc_err; \ + { \ + 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) \ + : _syscall_clobbers); \ + _sc_ret = _sc_0, _sc_err = _sc_19; \ + } \ + _syscall_return(type); \ +} +#define _syscall1(type,name,type1,arg1) \ +type name(type1 arg1) \ +{ \ + long _sc_ret, _sc_err; \ + { \ + 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) \ + : _syscall_clobbers); \ + _sc_ret = _sc_0, _sc_err = _sc_19; \ + } \ + _syscall_return(type); \ +} + +#define _syscall2(type,name,type1,arg1,type2,arg2) \ +type name(type1 arg1,type2 arg2) \ +{ \ + long _sc_ret, _sc_err; \ + { \ + 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) \ + : _syscall_clobbers); \ + _sc_ret = _sc_0, _sc_err = _sc_19; \ + } \ + _syscall_return(type); \ +} + +#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ +type name(type1 arg1,type2 arg2,type3 arg3) \ +{ \ + long _sc_ret, _sc_err; \ + { \ + 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) \ + : _syscall_clobbers); \ + _sc_ret = _sc_0, _sc_err = _sc_19; \ + } \ + _syscall_return(type); \ +} + +#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ +type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \ +{ \ + long _sc_ret, _sc_err; \ + { \ + 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) \ + : _syscall_clobbers); \ + _sc_ret = _sc_0, _sc_err = _sc_19; \ + } \ + _syscall_return(type); \ +} + +#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ + type5,arg5) \ +type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ +{ \ + long _sc_ret, _sc_err; \ + { \ + 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) \ + : _syscall_clobbers); \ + _sc_ret = _sc_0, _sc_err = _sc_19; \ + } \ + _syscall_return(type); \ +} + +#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ + type5,arg5,type6,arg6) \ +type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, type6 arg6)\ +{ \ + long _sc_ret, _sc_err; \ + { \ + 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) \ + : _syscall_clobbers); \ + _sc_ret = _sc_0, _sc_err = _sc_19; \ + } \ + _syscall_return(type); \ +} + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ |