unistd.h

来自「Linux Kernel 2.6.9 for OMAP1710」· C头文件 代码 · 共 556 行 · 第 1/2 页

#define __NR_setxattr		254
#define __NR_lsetxattr		255
#define __NR_fsetxattr		256
#define __NR_getxattr		257
#define __NR_lgetxattr		258
#define __NR_fgetxattr		269
#define __NR_listxattr		260
#define __NR_llistxattr		261
#define __NR_flistxattr		262
#define __NR_removexattr	263
#define __NR_lremovexattr	264
#define __NR_fremovexattr	265
#define __NR_tkill		266
#define __NR_sendfile64		267
#define __NR_futex		268
#define __NR_sched_setaffinity	269
#define __NR_sched_getaffinity	270
#define __NR_set_thread_area	271
#define __NR_get_thread_area	272
#define __NR_io_setup		273
#define __NR_io_destroy		274
#define __NR_io_getevents	275
#define __NR_io_submit		276
#define __NR_io_cancel		277
#define __NR_fadvise64		278
#define __NR_exit_group		280

#define __NR_lookup_dcookie	281
#define __NR_epoll_create	282
#define __NR_epoll_ctl		283
#define __NR_epoll_wait		284
#define __NR_remap_file_pages	285
#define __NR_set_tid_address	286
#define __NR_timer_create	287
#define __NR_timer_settime	(__NR_timer_create+1)
#define __NR_timer_gettime	(__NR_timer_create+2)
#define __NR_timer_getoverrun	(__NR_timer_create+3)
#define __NR_timer_delete	(__NR_timer_create+4)
#define __NR_clock_settime	(__NR_timer_create+5)
#define __NR_clock_gettime	(__NR_timer_create+6)
#define __NR_clock_getres	(__NR_timer_create+7)
#define __NR_clock_nanosleep	(__NR_timer_create+8)
#define __NR_statfs64		296
#define __NR_fstatfs64		297
#define __NR_tgkill		298
#define __NR_utimes		299
#define __NR_fadvise64_64	300
#define __NR_vserver		301
#define __NR_mbind              302
#define __NR_get_mempolicy      303
#define __NR_set_mempolicy      304
#define __NR_mq_open            305
#define __NR_mq_unlink          (__NR_mq_open+1)
#define __NR_mq_timedsend       (__NR_mq_open+2)
#define __NR_mq_timedreceive    (__NR_mq_open+3)
#define __NR_mq_notify          (__NR_mq_open+4)
#define __NR_mq_getsetattr      (__NR_mq_open+5)

#define NR_syscalls 311

/* user-visible error numbers are in the range -1 - -125: see <asm-sh64/errno.h> */

#define __syscall_return(type, res) \
do { \
	/* Note: when returning from kernel the return value is in r9	    \
	**       This prevents conflicts between return value and arg1      \
	**       when dispatching signal handler, in other words makes	    \
	**       life easier in the system call epilogue (see entry.S)      \
	*/								    \
        register unsigned long __sr2 __asm__ ("r2") = res;		    \
	if ((unsigned long)(res) >= (unsigned long)(-125)) { \
		errno = -(res);						    \
		__sr2 = -1; 						    \
	} \
	return (type) (__sr2); 						    \
} while (0)

/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */

#define _syscall0(type,name) \
type name(void) \
{ \
register unsigned long __sc0 __asm__ ("r9") = ((0x10 << 16) | __NR_##name); \
__asm__ __volatile__ ("trapa	%1 !\t\t\t" #name "()"			    \
	: "=r" (__sc0) 							    \
	: "r" (__sc0) ); 						    \
__syscall_return(type,__sc0); 						    \
}

	/*
	 * The apparent spurious "dummy" assembler comment is *needed*,
	 * as without it, the compiler treats the arg<n> variables
	 * as no longer live just before the asm. The compiler can
	 * then optimize the storage into any registers it wishes.
	 * The additional dummy statement forces the compiler to put
	 * the arguments into the correct registers before the TRAPA.
	 */
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
register unsigned long __sc0 __asm__ ("r9") = ((0x11 << 16) | __NR_##name); \
register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
__asm__ __volatile__ ("trapa	%1 !\t\t\t" #name "(%2)"		    \
	: "=r" (__sc0) 							    \
	: "r" (__sc0), "r" (__sc2));					    \
__asm__ __volatile__ ("!dummy	%0 %1"				   	    \
	:								    \
	: "r" (__sc0), "r" (__sc2));					    \
__syscall_return(type,__sc0); 						    \
}

#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) \
{ \
register unsigned long __sc0 __asm__ ("r9") = ((0x12 << 16) | __NR_##name); \
register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
__asm__ __volatile__ ("trapa	%1 !\t\t\t" #name "(%2,%3)"		    \
	: "=r" (__sc0) 							    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3) );			    \
__asm__ __volatile__ ("!dummy	%0 %1 %2"			   	    \
	:								    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3) );			    \
__syscall_return(type,__sc0); 						    \
}

#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type name(type1 arg1,type2 arg2,type3 arg3) \
{ \
register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_##name); \
register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
__asm__ __volatile__ ("trapa	%1 !\t\t\t" #name "(%2,%3,%4)"		    \
	: "=r" (__sc0) 							    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );		    \
__asm__ __volatile__ ("!dummy	%0 %1 %2 %3"			   	    \
	:								    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );	   	    \
__syscall_return(type,__sc0); 						    \
}

#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
register unsigned long __sc0 __asm__ ("r9") = ((0x14 << 16) | __NR_##name); \
register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4;	    \
__asm__ __volatile__ ("trapa	%1 !\t\t\t" #name "(%2,%3,%4,%5)"	    \
	: "=r" (__sc0) 							    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\
__asm__ __volatile__ ("!dummy	%0 %1 %2 %3 %4"			   	    \
	:								    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\
__syscall_return(type,__sc0); 						    \
}

#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) \
{ \
register unsigned long __sc0 __asm__ ("r9") = ((0x15 << 16) | __NR_##name); \
register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4;	    \
register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5;	    \
__asm__ __volatile__ ("trapa	%1 !\t\t\t" #name "(%2,%3,%4,%5,%6)"	    \
	: "=r" (__sc0) 							    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5),  \
	  "r" (__sc6));							    \
__asm__ __volatile__ ("!dummy	%0 %1 %2 %3 %4 %5"		   	    \
	:								    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5),  \
	  "r" (__sc6));							    \
__syscall_return(type,__sc0); 						    \
}

#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) \
{ \
register unsigned long __sc0 __asm__ ("r9") = ((0x16 << 16) | __NR_##name); \
register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4;	    \
register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5;	    \
register unsigned long __sc7 __asm__ ("r7") = (unsigned long) arg6;	    \
__asm__ __volatile__ ("trapa	%1 !\t\t\t" #name "(%2,%3,%4,%5,%6,%7)"	    \
	: "=r" (__sc0) 							    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5),  \
	  "r" (__sc6), "r" (__sc7));					    \
__asm__ __volatile__ ("!dummy	%0 %1 %2 %3 %4 %5 %6"		   	    \
	:								    \
	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5),  \
	  "r" (__sc6), "r" (__sc7));					    \
__syscall_return(type,__sc0); 						    \
}

#ifdef __KERNEL__
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_OLD_STAT
#define __ARCH_WANT_STAT64
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_PAUSE
#define __ARCH_WANT_SYS_SGETMASK
#define __ARCH_WANT_SYS_SIGNAL
#define __ARCH_WANT_SYS_TIME
#define __ARCH_WANT_SYS_UTIME
#define __ARCH_WANT_SYS_WAITPID
#define __ARCH_WANT_SYS_SOCKETCALL
#define __ARCH_WANT_SYS_FADVISE64
#define __ARCH_WANT_SYS_GETPGRP
#define __ARCH_WANT_SYS_LLSEEK
#define __ARCH_WANT_SYS_NICE
#define __ARCH_WANT_SYS_OLD_GETRLIMIT
#define __ARCH_WANT_SYS_OLDUMOUNT
#define __ARCH_WANT_SYS_SIGPENDING
#define __ARCH_WANT_SYS_SIGPROCMASK
#define __ARCH_WANT_SYS_RT_SIGACTION
#endif

#ifdef __KERNEL_SYSCALLS__

/* Copy from sh */
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm/ptrace.h>

/*
 * 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 _syscall1(int,setup,int,magic)
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

/*
 * "Conditional" syscalls
 *
 * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
 * but it doesn't work on all toolchains, so we just do it by hand
 */
#ifndef cond_syscall
#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
#endif

#endif /* __ASM_SH64_UNISTD_H */