blob: 6007821217dcd8a9bdb00544eb21f1bc665fc88c [file] [log] [blame]
/*
* arch/ia64/include/klibc/archsys.h
*
* Architecture-specific syscall definitions
*/
#ifndef _KLIBC_ARCHSYS_H
#define _KLIBC_ARCHSYS_H
#define __IA64_BREAK "break 0x100000;;\n\t"
#define _syscall0(type,name) \
type \
name (void) \
{ \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
__asm __volatile (__IA64_BREAK \
: "=r" (_r8), "=r" (_r10), "=r" (_r15) \
: "2" (_r15) ASM_ARGS_0 \
: "memory" ASM_CLOBBERS_0); \
_retval = _r8; \
if (_r10 == -1) { \
errno = (_retval); \
_retval = -1; \
} \
return (type)_retval; \
}
#define _syscall1(type,name,type1,arg1) \
type \
name (type1 arg1) \
{ \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_1(arg1); \
__asm __volatile (__IA64_BREAK \
: "=r" (_r8), "=r" (_r10), "=r" (_r15), \
ASM_OUTARGS_1 \
: "2" (_r15) ASM_ARGS_1 \
: "memory" ASM_CLOBBERS_1); \
_retval = _r8; \
if (_r10 == -1) { \
errno = (_retval); \
_retval = -1; \
} \
return (type)_retval; \
}
#define _syscall2(type,name,type1,arg1,type2,arg2) \
type \
name (type1 arg1, type2 arg2) \
{ \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_2(arg1, arg2); \
__asm __volatile (__IA64_BREAK \
: "=r" (_r8), "=r" (_r10), "=r" (_r15), \
ASM_OUTARGS_2 \
: "2" (_r15) ASM_ARGS_2 \
: "memory" ASM_CLOBBERS_2); \
_retval = _r8; \
if (_r10 == -1) { \
errno = (_retval); \
_retval = -1; \
} \
return (type)_retval; \
}
#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
type \
name (type1 arg1, type2 arg2, type3 arg3) \
{ \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_3(arg1, arg2, arg3); \
__asm __volatile (__IA64_BREAK \
: "=r" (_r8), "=r" (_r10), "=r" (_r15), \
ASM_OUTARGS_3 \
: "2" (_r15) ASM_ARGS_3 \
: "memory" ASM_CLOBBERS_3); \
_retval = _r8; \
if (_r10 == -1) { \
errno = (_retval); \
_retval = -1; \
} \
return (type)_retval; \
}
#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
type \
name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
{ \
register long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_4(arg1, arg2, arg3, arg4); \
__asm __volatile (__IA64_BREAK \
: "=r" (_r8), "=r" (_r10), "=r" (_r15), \
ASM_OUTARGS_4 \
: "2" (_r15) ASM_ARGS_4 \
: "memory" ASM_CLOBBERS_4); \
_retval = _r8; \
if (_r10 == -1) { \
errno = (_retval); \
_retval = -1; \
} \
return (type)_retval; \
}
#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 long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_5(arg1, arg2, arg3, arg4, arg5); \
__asm __volatile (__IA64_BREAK \
: "=r" (_r8), "=r" (_r10), "=r" (_r15), \
ASM_OUTARGS_5 \
: "2" (_r15) ASM_ARGS_5 \
: "memory" ASM_CLOBBERS_5); \
_retval = _r8; \
if (_r10 == -1) { \
errno = (_retval); \
_retval = -1; \
} \
return (type)_retval; \
}
#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 long _r8 asm ("r8"); \
register long _r10 asm ("r10"); \
register long _r15 asm ("r15") = __NR_##name; \
long _retval; \
LOAD_ARGS_6(arg1, arg2, arg3, arg4, arg5, arg6); \
__asm __volatile (__IA64_BREAK \
: "=r" (_r8), "=r" (_r10), "=r" (_r15), \
ASM_OUTARGS_6 \
: "2" (_r15) ASM_ARGS_6 \
: "memory" ASM_CLOBBERS_6); \
_retval = _r8; \
if (_r10 == -1) { \
errno = (_retval); \
_retval = -1; \
} \
return (type)_retval; \
}
#define LOAD_ARGS_0() do { } while (0)
#define LOAD_ARGS_1(out0) \
register long _out0 asm ("out0") = (long) (out0); \
LOAD_ARGS_0 ()
#define LOAD_ARGS_2(out0, out1) \
register long _out1 asm ("out1") = (long) (out1); \
LOAD_ARGS_1 (out0)
#define LOAD_ARGS_3(out0, out1, out2) \
register long _out2 asm ("out2") = (long) (out2); \
LOAD_ARGS_2 (out0, out1)
#define LOAD_ARGS_4(out0, out1, out2, out3) \
register long _out3 asm ("out3") = (long) (out3); \
LOAD_ARGS_3 (out0, out1, out2)
#define LOAD_ARGS_5(out0, out1, out2, out3, out4) \
register long _out4 asm ("out4") = (long) (out4); \
LOAD_ARGS_4 (out0, out1, out2, out3)
#define LOAD_ARGS_6(out0, out1, out2, out3, out4, out5) \
register long _out5 asm ("out5") = (long) (out5); \
LOAD_ARGS_5 (out0, out1, out2, out3, out4)
#define ASM_OUTARGS_1 "=r" (_out0)
#define ASM_OUTARGS_2 ASM_OUTARGS_1, "=r" (_out1)
#define ASM_OUTARGS_3 ASM_OUTARGS_2, "=r" (_out2)
#define ASM_OUTARGS_4 ASM_OUTARGS_3, "=r" (_out3)
#define ASM_OUTARGS_5 ASM_OUTARGS_4, "=r" (_out4)
#define ASM_OUTARGS_6 ASM_OUTARGS_5, "=r" (_out5)
#define ASM_ARGS_0
#define ASM_ARGS_1 ASM_ARGS_0, "3" (_out0)
#define ASM_ARGS_2 ASM_ARGS_1, "4" (_out1)
#define ASM_ARGS_3 ASM_ARGS_2, "5" (_out2)
#define ASM_ARGS_4 ASM_ARGS_3, "6" (_out3)
#define ASM_ARGS_5 ASM_ARGS_4, "7" (_out4)
#define ASM_ARGS_6 ASM_ARGS_5, "8" (_out5)
#define ASM_CLOBBERS_0 ASM_CLOBBERS_1, "out0"
#define ASM_CLOBBERS_1 ASM_CLOBBERS_2, "out1"
#define ASM_CLOBBERS_2 ASM_CLOBBERS_3, "out2"
#define ASM_CLOBBERS_3 ASM_CLOBBERS_4, "out3"
#define ASM_CLOBBERS_4 ASM_CLOBBERS_5, "out4"
#define ASM_CLOBBERS_5 ASM_CLOBBERS_6, "out5"
#define ASM_CLOBBERS_6 , "out6", "out7", \
/* Non-stacked integer registers, minus r8, r10, r15. */ \
"r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", \
"r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", \
"r28", "r29", "r30", "r31", \
/* Predicate registers. */ \
"p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", \
/* Non-rotating fp registers. */ \
"f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \
/* Branch registers. */ \
"b6", "b7"
#endif /* _KLIBC_ARCHSYS_H */