unistd.h

ARM 嵌入式 系统 设计与实例开发 实验教材 二源码

#define __NR_readdir            204 /* Linux Specific                              */
#define __NR_readahead          205 /* Linux Specific                              */
#define __NR_socketcall         206 /* Linux Specific                              */
#define __NR_syslog             207 /* Linux Specific                              */
/* #define __NR_olduname        208    Linux Specific                              */
/* #define __NR_iopl            209    Linux Specific - i386 specific, unused      */
/* #define __NR_idle            210    Linux Specific - was sys_idle, now unused   */
/* #define __NR_vm86            211    Linux Specific - i386 specific, unused      */
#define __NR_waitpid            212 /* Linux Specific                              */
#define __NR_swapoff            213 /* Linux Specific                              */
#define __NR_sysinfo            214 /* Linux Specific                              */
#define __NR_ipc                215 /* Linux Specific                              */
#define __NR_sigreturn          216 /* Linux Specific                              */
#define __NR_clone              217 /* Linux Specific                              */
/* #define __NR_modify_ldt      218    Linux Specific - i386 specific, unused      */
#define __NR_adjtimex           219 /* Linux Specific                              */
#define __NR_sigprocmask        220 /* Linux Specific                              */
#define __NR_create_module      221 /* Linux Specific                              */
#define __NR_delete_module      222 /* Linux Specific                              */
#define __NR_get_kernel_syms    223 /* Linux Specific                              */
#define __NR_getpgid            224 /* Linux Specific                              */
#define __NR_bdflush            225 /* Linux Specific                              */
#define __NR_sysfs              226 /* Linux Specific                              */
#define __NR_afs_syscall        227 /* Linux Specific                              */
#define __NR_setfsuid           228 /* Linux Specific                              */
#define __NR_setfsgid           229 /* Linux Specific                              */
#define __NR__newselect         230 /* Linux Specific                              */
#define __NR_time               231 /* Linux Specific                              */
/* #define __NR_oldstat         232    Linux Specific                              */
#define __NR_stime              233 /* Linux Specific                              */
/* #define __NR_oldfstat        234    Linux Specific                              */
/* #define __NR_phys            235    Linux Specific                              */
#define __NR__llseek            236 /* Linux Specific                              */
#define __NR_mlock              237
#define __NR_munlock            238
#define __NR_mlockall           239
#define __NR_munlockall         240
#define __NR_sched_setparam     241
#define __NR_sched_getparam     242
#define __NR_sched_setscheduler 243
#define __NR_sched_getscheduler 244
#define __NR_sched_yield        245
#define __NR_sched_get_priority_max 246
#define __NR_sched_get_priority_min 247
#define __NR_sched_rr_get_interval  248
#define __NR_nanosleep          249
#define __NR_mremap             250
#define __NR__sysctl            251
#define __NR_getsid             252
#define __NR_fdatasync          253
#define __NR_nfsservctl         254
#define __NR_aplib              255

#define _syscall0(type,name) \
type name(void) \
{ \
long __res; \
register long __g1 __asm__ ("g1") = __NR_##name; \
__asm__ __volatile__ ("t 0x10\n\t" \
		      "bcc 1f\n\t" \
		      "mov %%o0, %0\n\t" \
		      "sub %%g0, %%o0, %0\n\t" \
		      "1:\n\t" \
		      : "=r" (__res)\
		      : "r" (__g1) \
		      : "o0", "cc"); \
if (__res < -255 || __res >= 0) \
    return (type) __res; \
errno = -__res; \
return -1; \
}

#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
long __res; \
register long __g1 __asm__ ("g1") = __NR_##name; \
register long __o0 __asm__ ("o0") = (long)(arg1); \
__asm__ __volatile__ ("t 0x10\n\t" \
		      "bcc 1f\n\t" \
		      "mov %%o0, %0\n\t" \
		      "sub %%g0, %%o0, %0\n\t" \
		      "1:\n\t" \
		      : "=r" (__res), "=&r" (__o0) \
		      : "1" (__o0), "r" (__g1) \
		      : "cc"); \
if (__res < -255 || __res >= 0) \
	return (type) __res; \
errno = -__res; \
return -1; \
}

#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) \
{ \
long __res; \
register long __g1 __asm__ ("g1") = __NR_##name; \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
__asm__ __volatile__ ("t 0x10\n\t" \
		      "bcc 1f\n\t" \
		      "mov %%o0, %0\n\t" \
		      "sub %%g0, %%o0, %0\n\t" \
		      "1:\n\t" \
		      : "=r" (__res), "=&r" (__o0) \
		      : "1" (__o0), "r" (__o1), "r" (__g1) \
		      : "cc"); \
if (__res < -255 || __res >= 0) \
	return (type) __res; \
errno = -__res; \
return -1; \
}

#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1,type2 arg2,type3 arg3) \
{ \
long __res; \
register long __g1 __asm__ ("g1") = __NR_##name; \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
register long __o2 __asm__ ("o2") = (long)(arg3); \
__asm__ __volatile__ ("t 0x10\n\t" \
		      "bcc 1f\n\t" \
		      "mov %%o0, %0\n\t" \
		      "sub %%g0, %%o0, %0\n\t" \
		      "1:\n\t" \
		      : "=r" (__res), "=&r" (__o0) \
		      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1) \
		      : "cc"); \
if (__res < -255 || __res>=0) \
	return (type) __res; \
errno = -__res; \
return -1; \
}

#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
long __res; \
register long __g1 __asm__ ("g1") = __NR_##name; \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
register long __o2 __asm__ ("o2") = (long)(arg3); \
register long __o3 __asm__ ("o3") = (long)(arg4); \
__asm__ __volatile__ ("t 0x10\n\t" \
		      "bcc 1f\n\t" \
		      "mov %%o0, %0\n\t" \
		      "sub %%g0, %%o0, %0\n\t" \
		      "1:\n\t" \
		      : "=r" (__res), "=&r" (__o0) \
		      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3), "r" (__g1) \
		      : "cc"); \
if (__res < -255 || __res>=0) \
	return (type) __res; \
errno = -__res; \
return -1; \
} 

#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 __res; \
register long __g1 __asm__ ("g1") = __NR_##name; \
register long __o0 __asm__ ("o0") = (long)(arg1); \
register long __o1 __asm__ ("o1") = (long)(arg2); \
register long __o2 __asm__ ("o2") = (long)(arg3); \
register long __o3 __asm__ ("o3") = (long)(arg4); \
register long __o4 __asm__ ("o4") = (long)(arg5); \
__asm__ __volatile__ ("t 0x10\n\t" \
		      "bcc 1f\n\t" \
		      "mov %%o0, %0\n\t" \
		      "sub %%g0, %%o0, %0\n\t" \
		      "1:\n\t" \
		      : "=r" (__res), "=&r" (__o0) \
		      : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__o3), "r" (__o4), "r" (__g1) \
		      : "cc"); \
if (__res < -255 || __res>=0) \
	return (type) __res; \
errno = -__res; \
return -1; \
}
#ifdef __KERNEL_SYSCALLS__

/*
 * we need this inline - forking from kernel space will result
 * in NO COPY ON WRITE (!!!), until an execve is executed. This
 * is no problem, but for the stack. This is handled by not letting
 * main() use the stack at all after fork(). Thus, no function
 * calls - which means inline code for fork too, as otherwise we
 * would use the stack upon exit from 'fork()'.
 *
 * Actually only pause and fork are needed inline, so that there
 * won't be any messing with the stack from main(), but we define
 * some others too.
 */
#define __NR__exit __NR_exit
static __inline__ _syscall0(int,pause)
static __inline__ _syscall0(int,sync)
static __inline__ _syscall0(pid_t,setsid)
static __inline__ _syscall3(int,write,int,fd,__const__ char *,buf,off_t,count)
static __inline__ _syscall3(int,read,int,fd,char *,buf,off_t,count)
static __inline__ _syscall3(off_t,lseek,int,fd,off_t,offset,int,count)
static __inline__ _syscall1(int,dup,int,fd)
static __inline__ _syscall3(int,execve,__const__ char *,file,char **,argv,char **,envp)
static __inline__ _syscall3(int,open,__const__ char *,file,int,flag,int,mode)
static __inline__ _syscall1(int,close,int,fd)
static __inline__ _syscall1(int,_exit,int,exitcode)
static __inline__ _syscall3(pid_t,waitpid,pid_t,pid,int *,wait_stat,int,options)
static __inline__ _syscall1(int,delete_module,const char *,name)

static __inline__ pid_t wait(int * wait_stat)
{
	return waitpid(-1,wait_stat,0);
}

#endif /* __KERNEL_SYSCALLS__ */

#endif /* _SPARC_UNISTD_H */