#ifndef _BITS_SYSCALLS_H #define _BITS_SYSCALLS_H #ifndef _SYSCALL_H # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." #endif #ifndef __ASSEMBLER__ #include <errno.h> #define SYS_ify(syscall_name) (__NR_##syscall_name) #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 */