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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
#ifndef __ASSEMBLER__
#include <errno.h>
#define SYS_ify(syscall_name) (__NR_##syscall_name)
/* user-visible error numbers are in the range -1 - -4095: see <asm-frv/errno.h> */
#if defined _LIBC && !defined __set_errno
# define __syscall_return(type, res) \
do { \
unsigned long __sr2 = (res); \
if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \
extern int __syscall_error (int); \
return (type) __syscall_error (__sr2); \
} \
return (type) (__sr2); \
} while (0)
#else
# define __syscall_return(type, res) \
do { \
unsigned long __sr2 = (res); \
if (unlikely ((unsigned long)(__sr2) >= (unsigned long)(-4095))) { \
__set_errno (-__sr2); \
__sr2 = -1; \
} \
return (type) (__sr2); \
} while (0)
#endif
#ifndef __set_errno
# define __set_errno(val) ((*__errno_location ()) = (val))
#endif
/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
#define _syscall0(type,name) \
type name(void) \
{ \
register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
register unsigned long __sc0 __asm__ ("gr8"); \
__asm__ __volatile__ ("tra gr0,gr0" \
: "=r" (__sc0) \
: "r" (__scnum)); \
__syscall_return(type,__sc0); \
}
#define _syscall1(type,name,type1,arg1) \
type name(type1 arg1) \
{ \
register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
__asm__ __volatile__ ("tra gr0,gr0" \
: "+r" (__sc0) \
: "r" (__scnum)); \
__syscall_return(type,__sc0); \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1,type2 arg2) \
{ \
register unsigned long __scnum __asm__ ("gr7") = (__NR_##name); \
register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
__asm__ __volatile__ ("tra gr0,gr0" \
: "+r" (__sc0) \
: "r" (__scnum), "r" (__sc1)); \
__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 __scnum __asm__ ("gr7") = (__NR_##name); \
register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
__asm__ __volatile__ ("tra gr0,gr0" \
: "+r" (__sc0) \
: "r" (__scnum), "r" (__sc1), "r" (__sc2)); \
__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 __scnum __asm__ ("gr7") = (__NR_##name); \
register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \
__asm__ __volatile__ ("tra gr0,gr0" \
: "+r" (__sc0) \
: "r" (__scnum), "r" (__sc1), "r" (__sc2), "r" (__sc3)); \
__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 __scnum __asm__ ("gr7") = (__NR_##name); \
register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \
register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \
__asm__ __volatile__ ("tra gr0,gr0" \
: "+r" (__sc0) \
: "r" (__scnum), "r" (__sc1), "r" (__sc2), \
"r" (__sc3), "r" (__sc4)); \
__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 __scnum __asm__ ("gr7") = (__NR_##name); \
register unsigned long __sc0 __asm__ ("gr8") = (unsigned long) arg1; \
register unsigned long __sc1 __asm__ ("gr9") = (unsigned long) arg2; \
register unsigned long __sc2 __asm__ ("gr10") = (unsigned long) arg3; \
register unsigned long __sc3 __asm__ ("gr11") = (unsigned long) arg4; \
register unsigned long __sc4 __asm__ ("gr12") = (unsigned long) arg5; \
register unsigned long __sc5 __asm__ ("gr13") = (unsigned long) arg6; \
__asm__ __volatile__ ("tra gr0,gr0" \
: "+r" (__sc0) \
: "r" (__scnum), "r" (__sc1), "r" (__sc2), \
"r" (__sc3), "r" (__sc4), "r" (__sc5)); \
__syscall_return(type,__sc0); \
}
#endif /* __ASSEMBLER__ */
#endif /* _BITS_SYSCALLS_H */
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