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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 __ASSEMBLER__
#include <errno.h>
#define SYS_ify(syscall_name) (__NR_##syscall_name)
#define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", \
"$14", "$15", "$24", "$25", "memory"
#define _syscall0(type,name) \
type name(void) \
{ \
long err; \
long sys_result; \
{ \
register unsigned long __v0 asm("$2"); \
register unsigned long __a3 asm("$7"); \
__asm__ volatile ( \
".set noreorder\n\t" \
"li $2, %2 # " #name "\n\t" \
"syscall\n\t" \
".set reorder" \
: "=r" (__v0), "=r" (__a3) \
: "i" (SYS_ify(name)) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
return (type)-1; \
}
#define _syscall1(type,name,atype,a) \
type name(atype a) \
{ \
long err; \
long sys_result; \
{ \
register unsigned long __v0 asm("$2"); \
register unsigned long __a0 asm("$4") = (unsigned long) a; \
register unsigned long __a3 asm("$7"); \
__asm__ volatile ( \
".set noreorder\n\t" \
"li $2, %3\t\t\t# " #name "\n\t" \
"syscall\n\t" \
".set reorder" \
: "=r" (__v0), "=r" (__a3) \
: "r" (__a0), "i" (SYS_ify(name)) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
return (type)-1; \
}
#define _syscall2(type,name,atype,a,btype,b) \
type name(atype a,btype b) \
{ \
long err; \
long sys_result; \
{ \
register unsigned long __v0 asm("$2"); \
register unsigned long __a0 asm("$4") = (unsigned long) a; \
register unsigned long __a1 asm("$5") = (unsigned long) b; \
register unsigned long __a3 asm("$7"); \
__asm__ volatile ( \
".set noreorder\n\t" \
"li $2, %4\t\t\t# " #name "\n\t" \
"syscall\n\t" \
".set reorder" \
: "=r" (__v0), "=r" (__a3) \
: "r" (__a0), "r" (__a1), "i" (SYS_ify(name)) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
return (type)-1; \
}
#define _syscall3(type,name,atype,a,btype,b,ctype,c) \
type name (atype a, btype b, ctype c) \
{ \
long err; \
long sys_result; \
{ \
register unsigned long __v0 asm("$2"); \
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"); \
__asm__ volatile ( \
".set noreorder\n\t" \
"li $2, %5\t\t\t# " #name "\n\t" \
"syscall\n\t" \
".set reorder" \
: "=r" (__v0), "=r" (__a3) \
: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
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 err; \
long sys_result; \
{ \
register unsigned long __v0 asm("$2"); \
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; \
__asm__ volatile ( \
".set noreorder\n\t" \
"li $2, %5\t\t\t# " #name "\n\t" \
"syscall\n\t" \
".set reorder" \
: "=r" (__v0), "+r" (__a3) \
: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
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 err; \
long sys_result; \
const unsigned long *constE = (void*)(unsigned long) e; \
{ \
register unsigned long __v0 asm("$2"); \
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; \
__asm__ volatile ( \
".set noreorder\n\t" \
"lw $2, %6\n\t" \
"subu $29, 32\n\t" \
"sw $2, 16($29)\n\t" \
"li $2, %5\t\t\t# " #name "\n\t" \
"syscall\n\t" \
"addiu $29, 32\n\t" \
".set reorder" \
: "=r" (__v0), "+r" (__a3) \
: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
"m" (constE) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
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 err; \
long sys_result; \
const unsigned long *constE = (void*)(unsigned long) e; \
const unsigned long *constF = (void*)(unsigned long) f; \
{ \
register unsigned long __v0 asm("$2"); \
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; \
__asm__ volatile ( \
".set noreorder\n\t" \
"lw $2, %6\n\t" \
"lw $8, %7\n\t" \
"subu $29, 32\n\t" \
"sw $2, 16($29)\n\t" \
"sw $8, 20($29)\n\t" \
"li $2, %5\t\t\t# " #name "\n\t" \
"syscall\n\t" \
"addiu $29, 32\n\t" \
".set reorder" \
: "=r" (__v0), "+r" (__a3) \
: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
"m" (constE), "m" (constF) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
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 err; \
long sys_result; \
const unsigned long *constE = (void*)(unsigned long) e; \
const unsigned long *constF = (void*)(unsigned long) f; \
const unsigned long *constG = (void*)(unsigned long) g; \
{ \
register unsigned long __v0 asm("$2"); \
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; \
__asm__ volatile ( \
".set noreorder\n\t" \
"lw $2, %6\n\t" \
"lw $8, %7\n\t" \
"lw $9, %8\n\t" \
"subu $29, 32\n\t" \
"sw $2, 16($29)\n\t" \
"sw $8, 20($29)\n\t" \
"sw $9, 24($29)\n\t" \
"li $2, %5\t\t\t# " #name "\n\t" \
"syscall\n\t" \
"addiu $29, 32\n\t" \
".set reorder" \
: "=r" (__v0), "+r" (__a3) \
: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
"m" (constE), "m" (constF), "m" (constG) \
: __SYSCALL_CLOBBERS); \
err = __a3; \
sys_result = __v0; \
} \
if (err == 0) \
return (type) sys_result; \
__set_errno(sys_result); \
return (type)-1; \
}
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
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