unistd.h

来自「Linux Kernel 2.6.9 for OMAP1710」· C头文件 代码 · 共 1,168 行 · 第 1/3 页

#define __NR_epoll_wait			(__NR_Linux + 209)
#define __NR_remap_file_pages		(__NR_Linux + 210)
#define __NR_rt_sigreturn		(__NR_Linux + 211)
#define __NR_fcntl64			(__NR_Linux + 212)
#define __NR_set_tid_address		(__NR_Linux + 213)
#define __NR_restart_syscall		(__NR_Linux + 214)
#define __NR_semtimedop			(__NR_Linux + 215)
#define __NR_fadvise64			(__NR_Linux + 216)
#define __NR_statfs64			(__NR_Linux + 217)
#define __NR_fstatfs64			(__NR_Linux + 218)
#define __NR_sendfile64			(__NR_Linux + 219)
#define __NR_timer_create		(__NR_Linux + 220)
#define __NR_timer_settime		(__NR_Linux + 221)
#define __NR_timer_gettime		(__NR_Linux + 222)
#define __NR_timer_getoverrun		(__NR_Linux + 223)
#define __NR_timer_delete		(__NR_Linux + 224)
#define __NR_clock_settime		(__NR_Linux + 225)
#define __NR_clock_gettime		(__NR_Linux + 226)
#define __NR_clock_getres		(__NR_Linux + 227)
#define __NR_clock_nanosleep		(__NR_Linux + 228)
#define __NR_tgkill			(__NR_Linux + 229)
#define __NR_utimes			(__NR_Linux + 230)
#define __NR_mbind			(__NR_Linux + 231)
#define __NR_get_mempolicy		(__NR_Linux + 232)
#define __NR_set_mempolicy		(__NR_Linux + 233)
#define __NR_mq_open			(__NR_Linux + 234)
#define __NR_mq_unlink			(__NR_Linux + 235)
#define __NR_mq_timedsend		(__NR_Linux + 236)
#define __NR_mq_timedreceive		(__NR_Linux + 237)
#define __NR_mq_notify			(__NR_Linux + 238)
#define __NR_mq_getsetattr		(__NR_Linux + 239)
#define __NR_vserver			(__NR_Linux + 240)

/*
 * Offset of the last N32 flavoured syscall
 */
#define __NR_Linux_syscalls		240

#endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */

#define __NR_N32_Linux			6000
#define __NR_N32_Linux_syscalls		240

#ifndef __ASSEMBLY__

/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
#define _syscall0(type,name) \
type name(void) \
{ \
	register unsigned long __a3 asm("$7"); \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"li\t$2, %2\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "=r" (__a3) \
	: "i" (__NR_##name) \
	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

/*
 * DANGER: This macro isn't usable for the pipe(2) call
 * which has a unusual return convention.
 */
#define _syscall1(type,name,atype,a) \
type name(atype a) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a3 asm("$7"); \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"li\t$2, %3\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "=r" (__a3) \
	: "r" (__a0), "i" (__NR_##name) \
	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#define _syscall2(type,name,atype,a,btype,b) \
type name(atype a, btype b) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a1 asm("$5") = (unsigned long) b; \
	register unsigned long __a3 asm("$7"); \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"li\t$2, %4\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "=r" (__a3) \
	: "r" (__a0), "r" (__a1), "i" (__NR_##name) \
	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#define _syscall3(type,name,atype,a,btype,b,ctype,c) \
type name(atype a, btype b, ctype c) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a1 asm("$5") = (unsigned long) b; \
	register unsigned long __a2 asm("$6") = (unsigned long) c; \
	register unsigned long __a3 asm("$7"); \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"li\t$2, %5\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "=r" (__a3) \
	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \
	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
type name(atype a, btype b, ctype c, dtype d) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a1 asm("$5") = (unsigned long) b; \
	register unsigned long __a2 asm("$6") = (unsigned long) c; \
	register unsigned long __a3 asm("$7") = (unsigned long) d; \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"li\t$2, %5\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "+r" (__a3) \
	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \
	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#if (_MIPS_SIM == _MIPS_SIM_ABI32)

/*
 * Using those means your brain needs more than an oil change ;-)
 */

#define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
type name(atype a, btype b, ctype c, dtype d, etype e) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a1 asm("$5") = (unsigned long) b; \
	register unsigned long __a2 asm("$6") = (unsigned long) c; \
	register unsigned long __a3 asm("$7") = (unsigned long) d; \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"lw\t$2, %6\n\t" \
	"subu\t$29, 32\n\t" \
	"sw\t$2, 16($29)\n\t" \
	"li\t$2, %5\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	"addiu\t$29, 32\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "+r" (__a3) \
	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name), \
	  "m" ((unsigned long)e) \
	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \
type name(atype a, btype b, ctype c, dtype d, etype e, ftype f) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a1 asm("$5") = (unsigned long) b; \
	register unsigned long __a2 asm("$6") = (unsigned long) c; \
	register unsigned long __a3 asm("$7") = (unsigned long) d; \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"lw\t$2, %6\n\t" \
	"lw\t$8, %7\n\t" \
	"subu\t$29, 32\n\t" \
	"sw\t$2, 16($29)\n\t" \
	"sw\t$8, 20($29)\n\t" \
	"li\t$2, %5\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	"addiu\t$29, 32\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "+r" (__a3) \
	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name), \
	  "m" ((unsigned long)e), "m" ((unsigned long)f) \
	: "$2", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#endif /* (_MIPS_SIM == _MIPS_SIM_ABI32) */

#if (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64)

#define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \
type name (atype a,btype b,ctype c,dtype d,etype e) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a1 asm("$5") = (unsigned long) b; \
	register unsigned long __a2 asm("$6") = (unsigned long) c; \
	register unsigned long __a3 asm("$7") = (unsigned long) d; \
	register unsigned long __a4 asm("$8") = (unsigned long) e; \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"li\t$2, %6\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "+r" (__a3), "+r" (__a4) \
	: "r" (__a0), "r" (__a1), "r" (__a2), "i" (__NR_##name) \
	: "$2","$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \
type name (atype a,btype b,ctype c,dtype d,etype e,ftype f) \
{ \
	register unsigned long __a0 asm("$4") = (unsigned long) a; \
	register unsigned long __a1 asm("$5") = (unsigned long) b; \
	register unsigned long __a2 asm("$6") = (unsigned long) c; \
	register unsigned long __a3 asm("$7") = (unsigned long) d; \
	register unsigned long __a4 asm("$8") = (unsigned long) e; \
	register unsigned long __a5 asm("$9") = (unsigned long) f; \
	unsigned long __v0; \
	\
	__asm__ volatile ( \
	".set\tnoreorder\n\t" \
	"li\t$2, %7\t\t\t# " #name "\n\t" \
	"syscall\n\t" \
	"move\t%0, $2\n\t" \
	".set\treorder" \
	: "=&r" (__v0), "+r" (__a3) \
	: "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a4), "r" (__a5), \
	  "i" (__NR_##name) \
	: "$2","$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24"); \
	\
	if (__a3 == 0) \
		return (type) __v0; \
	errno = __v0; \
	return -1; \
}

#endif /* (_MIPS_SIM == _MIPS_SIM_NABI32) || (_MIPS_SIM == _MIPS_SIM_ABI64) */

#ifdef __KERNEL__
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR
#define __ARCH_WANT_SYS_ALARM
#define __ARCH_WANT_SYS_GETHOSTNAME
#define __ARCH_WANT_SYS_PAUSE
#define __ARCH_WANT_SYS_SGETMASK
#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
# ifndef __mips64
#  define __ARCH_WANT_STAT64
# endif
#endif

#ifdef __KERNEL_SYSCALLS__

#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/linkage.h>
#include <asm/ptrace.h>
#include <asm/sim.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.
 */
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)
struct rusage;
static inline _syscall4(pid_t,wait4,pid_t,pid,int *,stat_addr,int,options,struct rusage *,ru)

static inline pid_t waitpid(int pid, int * wait_stat, int flags)
{
	return wait4(pid, wait_stat, flags, NULL);
}

asmlinkage unsigned long sys_mmap(
				unsigned long addr, size_t len,
				int prot, int flags,
				int fd, off_t offset);
asmlinkage long sys_mmap2(
			unsigned long addr, unsigned long len,
			unsigned long prot, unsigned long flags,
			unsigned long fd, unsigned long pgoff);
asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs);
asmlinkage int sys_pipe(nabi_no_regargs struct pt_regs regs);
asmlinkage int sys_ptrace(long request, long pid, long addr, long data);
struct sigaction;
asmlinkage long sys_rt_sigaction(int sig,
				const struct sigaction __user *act,
				struct sigaction __user *oact,
				size_t sigsetsize);

#endif /* __KERNEL_SYSCALLS__ */
#endif /* !__ASSEMBLY__ */

/*
 * "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
 */
#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall");

#endif /* _ASM_UNISTD_H */