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#ifndef _BITS_SYSCALLS_H
#define _BITS_SYSCALLS_H
#ifndef _SYSCALL_H
# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
#endif
/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
* header files. It also defines the traditional `SYS_<name>' macros for older
* programs. */
#include <bits/sysnum.h>
#ifndef __set_errno
# define __set_errno(val) (*__errno_location ()) = (val)
#endif
#ifndef SYS_ify
# define SYS_ify(syscall_name) (__NR_##syscall_name)
#endif
#ifndef __ASSEMBLER__
/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
#define _syscall0(type,name) \
type name(void) \
{ \
long __res, __err; \
__asm__ volatile ("li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name) \
: "$2","$7","$8","$9","$10","$11","$12","$13","$14","$15", \
"$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-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) \
{ \
long __res, __err; \
__asm__ volatile ("move\t$4,%3\n\t" \
"li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name),"r" ((unsigned long)(a)) \
: "$2","$4","$7","$8","$9","$10","$11","$12","$13","$14","$15","$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-1; \
}
#define _syscall2(type,name,atype,a,btype,b) \
type name(atype a,btype b) \
{ \
long __res, __err; \
__asm__ volatile ("move\t$4,%3\n\t" \
"move\t$5,%4\n\t" \
"li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name),"r" ((unsigned long)(a)), \
"r" ((unsigned long)(b)) \
: "$2","$4","$5","$7","$8","$9","$10","$11","$12","$13", \
"$14","$15", "$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-1; \
}
#define _syscall3(type,name,atype,a,btype,b,ctype,c) \
type name (atype a, btype b, ctype c) \
{ \
long __res, __err; \
__asm__ volatile ("move\t$4,%3\n\t" \
"move\t$5,%4\n\t" \
"move\t$6,%5\n\t" \
"li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name),"r" ((unsigned long)(a)), \
"r" ((unsigned long)(b)), \
"r" ((unsigned long)(c)) \
: "$2","$4","$5","$6","$7","$8","$9","$10","$11","$12", \
"$13","$14","$15","$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-1; \
}
#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \
type name (atype a, btype b, ctype c, dtype d) \
{ \
long __res, __err; \
__asm__ volatile ("move\t$4,%3\n\t" \
"move\t$5,%4\n\t" \
"move\t$6,%5\n\t" \
"move\t$7,%6\n\t" \
"li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name),"r" ((unsigned long)(a)), \
"r" ((unsigned long)(b)), \
"r" ((unsigned long)(c)), \
"r" ((unsigned long)(d)) \
: "$2","$4","$5","$6","$7","$8","$9","$10","$11","$12", \
"$13","$14","$15","$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-1; \
}
#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) \
{ \
long __res, __err; \
const unsigned long *constE = (unsigned long *) e; \
__asm__ volatile ("move\t$4,%3\n\t" \
"move\t$5,%4\n\t" \
"move\t$6,%5\n\t" \
"lw\t$2,%7\n\t" \
"move\t$7,%6\n\t" \
"subu\t$29,24\n\t" \
"sw\t$2,16($29)\n\t" \
"li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7\n\t" \
"addiu\t$29,24" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name),"r" ((unsigned long)(a)), \
"r" ((unsigned long)(b)), \
"r" ((unsigned long)(c)), \
"r" ((unsigned long)(d)), \
"m" ((constE)) \
: "$2","$4","$5","$6","$7","$8","$9","$10","$11","$12", \
"$13","$14","$15","$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-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) \
{ \
long __res, __err; \
const unsigned long *constE = (unsigned long *) e; \
const unsigned long *constF = (unsigned long *) f; \
__asm__ volatile ("move\t$4,%3\n\t" \
"move\t$5,%4\n\t" \
"move\t$6,%5\n\t" \
"lw\t$2,%7\n\t" \
"lw\t$3,%8\n\t" \
"move\t$7,%6\n\t" \
"subu\t$29,24\n\t" \
"sw\t$2,16($29)\n\t" \
"sw\t$3,20($29)\n\t" \
"li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7\n\t" \
"addiu\t$29,24" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name),"r" ((unsigned long)(a)), \
"r" ((unsigned long)(b)), \
"r" ((unsigned long)(c)), \
"r" ((unsigned long)(d)), \
"m" ((constE)), \
"m" ((constF)) \
: "$2","$3","$4","$5","$6","$7","$8","$9","$10","$11", \
"$12","$13","$14","$15","$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-1; \
}
#define _syscall7(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f,gtype,g) \
type name (atype a,btype b,ctype c,dtype d,etype e,ftype f,gtype g) \
{ \
long __res, __err; \
const unsigned long *constE = (unsigned long *) e; \
const unsigned long *constF = (unsigned long *) f; \
const unsigned long *constG = (unsigned long *) g; \
__asm__ volatile ("move\t$4,%3\n\t" \
"move\t$5,%4\n\t" \
"move\t$6,%5\n\t" \
"lw\t$2,%7\n\t" \
"lw\t$3,%8\n\t" \
"move\t$7,%6\n\t" \
"subu\t$29,32\n\t" \
"sw\t$2,16($29)\n\t" \
"lw\t$2,%9\n\t" \
"sw\t$3,20($29)\n\t" \
"sw\t$2,24($29)\n\t" \
"li\t$2,%2\n\t" \
"syscall\n\t" \
"move\t%0, $2\n\t" \
"move\t%1, $7\n\t" \
"addiu\t$29,32" \
: "=r" (__res), "=r" (__err) \
: "i" (__NR_##name),"r" ((unsigned long)(a)), \
"r" ((unsigned long)(b)), \
"r" ((unsigned long)(c)), \
"r" ((unsigned long)(d)), \
"m" ((constE)), \
"m" ((constF)), \
"m" ((constG)) \
: "$2","$3","$4","$5","$6","$7","$8","$9","$10","$11", \
"$12","$13","$14","$15","$24","memory"); \
if (__err == 0) \
return (type) __res; \
__set_errno(__res); \
return (type)-1; \
}
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
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