#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__ #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ ({ \ LOAD_ARGS_##nr (args); \ register int __ret __asm__("r1"); \ register int _scno __asm__("r8") = name; \ __asm__ __volatile__("scall" \ : "=r" (__ret) \ : "r"(_scno) ASM_ARGS_##nr \ : __SYSCALL_CLOBBERS ); \ __ret; \ }) /* original port had ret >= -125 ?! */ #define LOAD_ARGS_0() do { } while(0) #define ASM_ARGS_0 #define LOAD_ARGS_1(a1) \ int _a1 = (int)(a1); \ LOAD_ARGS_0(); \ register int __a1 __asm__("r1") = _a1 #define ASM_ARGS_1 ASM_ARGS_0, "0"(__a1) #define LOAD_ARGS_2(a1, a2) \ int _a2 = (int)(a2); \ LOAD_ARGS_1(a1); \ register int __a2 __asm__("r2") = _a2 #define ASM_ARGS_2 ASM_ARGS_1, "r"(__a2) #define LOAD_ARGS_3(a1, a2, a3) \ int _a3 = (int)(a3); \ LOAD_ARGS_2(a1, a2); \ register int __a3 __asm__("r3") = _a3 #define ASM_ARGS_3 ASM_ARGS_2, "r"(__a3) #define LOAD_ARGS_4(a1, a2, a3, a4) \ int _a4 = (int)(a4); \ LOAD_ARGS_3(a1, a2, a3); \ register int __a4 __asm__("r4") = _a4 #define ASM_ARGS_4 ASM_ARGS_3, "r"(__a4) #define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ int _a5 = (int)(a5); \ LOAD_ARGS_4(a1, a2, a3, a4); \ register int __a5 __asm__("r5") = _a5 #define ASM_ARGS_5 ASM_ARGS_4, "r"(__a5) #define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ int _a6 = (int)(a6); \ LOAD_ARGS_5(a1, a2, a3, a4, a5); \ register int __a6 __asm__("r6") = _a6 #define ASM_ARGS_6 ASM_ARGS_5, "r"(__a6) #define __SYSCALL_CLOBBERS #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */