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#define __NR_io_setup 243
#define __NR_io_destroy 244
#define __NR_io_getevents 245
#define __NR_io_submit 246
#define __NR_io_cancel 247
#define _svc_clobber "2", "cc", "memory"
#ifdef __s390x__
#define __LR "lgr " /* 64 bit load register */
#else
#define __LR "lr " /* 32 bit load register */
#endif
#define io_syscall0(type,name) \
type name(void) { \
long __res; \
__asm__ __volatile__ ( \
" svc %b1\n" \
" "__LR" %0,2" \
: "=d" (__res) \
: "i" (__NR_##name) \
: _svc_clobber ); \
return (type) __res; \
}
#define io_syscall1(type,name,type1,arg1) \
type name(type1 arg1) { \
register type1 __arg1 asm("2") = arg1; \
long __res; \
__asm__ __volatile__ ( \
" svc %b1\n" \
" "__LR" %0,2" \
: "=d" (__res) \
: "i" (__NR_##name), \
"d" (__arg1) \
: _svc_clobber ); \
return (type) __res; \
}
#define io_syscall2(type,name,type1,arg1,type2,arg2) \
type name(type1 arg1, type2 arg2) { \
register type1 __arg1 asm("2") = arg1; \
register type2 __arg2 asm("3") = arg2; \
long __res; \
__asm__ __volatile__ ( \
" svc %b1\n" \
" "__LR" %0,2" \
: "=d" (__res) \
: "i" (__NR_##name), \
"d" (__arg1), \
"d" (__arg2) \
: _svc_clobber ); \
return (type) __res; \
}
#define io_syscall3(type,name,type1,arg1,type2,arg2, \
type3,arg3) \
type name(type1 arg1, type2 arg2, type3 arg3) { \
register type1 __arg1 asm("2") = arg1; \
register type2 __arg2 asm("3") = arg2; \
register type3 __arg3 asm("4") = arg3; \
long __res; \
__asm__ __volatile__ ( \
" svc %b1\n" \
" "__LR" %0,2" \
: "=d" (__res) \
: "i" (__NR_##name), \
"d" (__arg1), \
"d" (__arg2), \
"d" (__arg3) \
: _svc_clobber ); \
return (type) __res; \
}
#define io_syscall4(type,name,type1,arg1,type2,arg2, \
type3,arg3,type4,arg4) \
type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
register type1 __arg1 asm("2") = arg1; \
register type2 __arg2 asm("3") = arg2; \
register type3 __arg3 asm("4") = arg3; \
register type4 __arg4 asm("5") = arg4; \
long __res; \
__asm__ __volatile__ ( \
" svc %b1\n" \
" "__LR" %0,2" \
: "=d" (__res) \
: "i" (__NR_##name), \
"d" (__arg1), \
"d" (__arg2), \
"d" (__arg3), \
"d" (__arg4) \
: _svc_clobber ); \
return (type) __res; \
}
#define io_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 type1 __arg1 asm("2") = arg1; \
register type2 __arg2 asm("3") = arg2; \
register type3 __arg3 asm("4") = arg3; \
register type4 __arg4 asm("5") = arg4; \
register type5 __arg5 asm("6") = arg5; \
long __res; \
__asm__ __volatile__ ( \
" svc %b1\n" \
" "__LR" %0,2" \
: "=d" (__res) \
: "i" (__NR_##name), \
"d" (__arg1), \
"d" (__arg2), \
"d" (__arg3), \
"d" (__arg4), \
"d" (__arg5) \
: _svc_clobber ); \
return (type) __res; \
}
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