#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 INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ ({ \ register int _a1 __asm__("r12"); \ register int _scno __asm__("r8") = name; \ LOAD_ARGS_##nr (args); \ __asm__ __volatile__("scall /* syscall " #name " */" \ : "=r" (_a1) \ : "r"(_scno) ASM_ARGS_##nr \ : "cc", "memory"); \ _a1; \ }) #define INTERNAL_SYSCALL_ERROR_P(val, err) \ ((unsigned int)(val) >= 0xfffff001U) #define LOAD_ARGS_0() do { } while(0) #define ASM_ARGS_0 #define LOAD_ARGS_1(a1) \ _a1 = (int) (a1); \ LOAD_ARGS_0() #define ASM_ARGS_1 ASM_ARGS_0, "r"(_a1) #define LOAD_ARGS_2(a1, a2) \ register int _a2 __asm__("r11") = (int)(a2); \ LOAD_ARGS_1(a1) #define ASM_ARGS_2 ASM_ARGS_1, "r"(_a2) #define LOAD_ARGS_3(a1, a2, a3) \ register int _a3 __asm__("r10") = (int)(a3); \ LOAD_ARGS_2(a1, a2) #define ASM_ARGS_3 ASM_ARGS_2, "r"(_a3) #define LOAD_ARGS_4(a1, a2, a3, a4) \ register int _a4 __asm__("r9") = (int)(a4); \ LOAD_ARGS_3(a1, a2, a3) #define ASM_ARGS_4 ASM_ARGS_3, "r"(_a4) #define LOAD_ARGS_5(a1, a2, a3, a4, a5) \ register int _a5 __asm__("r5") = (int)(a5); \ LOAD_ARGS_4(a1, a2, a3, a4) #define ASM_ARGS_5 ASM_ARGS_4, "r"(_a5) #define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \ register int _a6 __asm__("r3") = (int)(a6); \ LOAD_ARGS_5(a1, a2, a3, a4, a5) #define ASM_ARGS_6 ASM_ARGS_5, "r"(_a6) #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */