1 #ifndef _BITS_SYSCALLS_H 2 #define _BITS_SYSCALLS_H 3 #ifndef _SYSCALL_H 4 # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." 5 #endif 6 7 8 #ifndef __ASSEMBLER__ 9 10 #include <errno.h> 11 12 #define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ 13 (__extension__ \ 14 ({ \ 15 register int __ret __asm__("r3"); \ 16 register int _scno __asm__("r12") = name; \ 17 LOAD_ARGS_##nr (args); \ 18 __asm__ __volatile__("brki r14, 0x8" \ 19 : "=r" (__ret) \ 20 : "r"(_scno) ASM_ARGS_##nr \ 21 : __SYSCALL_CLOBBERS ); \ 22 __ret; \ 23 }) \ 24 ) 25 #define INTERNAL_SYSCALL_ERROR_P(val, err) \ 26 ((unsigned int)(val) >= 0xfffff001U) 27 28 #define LOAD_ARGS_0() do { } while(0) 29 #define ASM_ARGS_0 30 #define LOAD_ARGS_1(a1) \ 31 register int _a1 __asm__("r5") = (int)(a1); \ 32 LOAD_ARGS_0() 33 #define ASM_ARGS_1 ASM_ARGS_0, "r"(_a1) 34 #define LOAD_ARGS_2(a1, a2) \ 35 register int _a2 __asm__("r6") = (int)(a2); \ 36 LOAD_ARGS_1(a1) 37 #define ASM_ARGS_2 ASM_ARGS_1, "r"(_a2) 38 #define LOAD_ARGS_3(a1, a2, a3) \ 39 register int _a3 __asm__("r7") = (int)(a3); \ 40 LOAD_ARGS_2(a1, a2) 41 #define ASM_ARGS_3 ASM_ARGS_2, "r"(_a3) 42 #define LOAD_ARGS_4(a1, a2, a3, a4) \ 43 register int _a4 __asm__("r8") = (int)(a4); \ 44 LOAD_ARGS_3(a1, a2, a3) 45 #define ASM_ARGS_4 ASM_ARGS_3, "r"(_a4) 46 #define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ 47 register int _a5 __asm__("r9") = (int)(a5); \ 48 LOAD_ARGS_4(a1, a2, a3, a4) 49 #define ASM_ARGS_5 ASM_ARGS_4, "r"(_a5) 50 #define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ 51 register int _a6 __asm__("r10") = (int)(a6); \ 52 LOAD_ARGS_5(a1, a2, a3, a4, a5) 53 #define ASM_ARGS_6 ASM_ARGS_5, "r"(_a6) 54 55 #define __SYSCALL_CLOBBERS "r4", "r14", "cc", "memory" 56 57 #endif /* __ASSEMBLER__ */ 58 #endif /* _BITS_SYSCALLS_H */ 59