diff options
Diffstat (limited to 'src/syscall-s390.h')
-rw-r--r-- | src/syscall-s390.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/syscall-s390.h b/src/syscall-s390.h index f0805f5..515c217 100644 --- a/src/syscall-s390.h +++ b/src/syscall-s390.h @@ -3,3 +3,117 @@ #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,fname,sname) \ +type fname(void) { \ + long __res; \ + __asm__ __volatile__ ( \ + " svc %b1\n" \ + " "__LR" %0,2" \ + : "=d" (__res) \ + : "i" (__NR_##sname) \ + : _svc_clobber ); \ + return (type) __res; \ +} + +#define io_syscall1(type,fname,sname,type1,arg1) \ +type fname(type1 arg1) { \ + register type1 __arg1 asm("2") = arg1; \ + long __res; \ + __asm__ __volatile__ ( \ + " svc %b1\n" \ + " "__LR" %0,2" \ + : "=d" (__res) \ + : "i" (__NR_##sname), \ + "d" (__arg1) \ + : _svc_clobber ); \ + return (type) __res; \ +} + +#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2) \ +type fname(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_##sname), \ + "d" (__arg1), \ + "d" (__arg2) \ + : _svc_clobber ); \ + return (type) __res; \ +} + +#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2, \ + type3,arg3) \ +type fname(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_##sname), \ + "d" (__arg1), \ + "d" (__arg2), \ + "d" (__arg3) \ + : _svc_clobber ); \ + return (type) __res; \ +} + +#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2, \ + type3,arg3,type4,arg4) \ +type fname(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_##sname), \ + "d" (__arg1), \ + "d" (__arg2), \ + "d" (__arg3), \ + "d" (__arg4) \ + : _svc_clobber ); \ + return (type) __res; \ +} + +#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2, \ + type3,arg3,type4,arg4,type5,arg5) \ +type fname(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_##sname), \ + "d" (__arg1), \ + "d" (__arg2), \ + "d" (__arg3), \ + "d" (__arg4), \ + "d" (__arg5) \ + : _svc_clobber ); \ + return (type) __res; \ +} |