diff options
Diffstat (limited to 'klibc/include/arch/s390/klibc/archsys.h')
| -rw-r--r-- | klibc/include/arch/s390/klibc/archsys.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/klibc/include/arch/s390/klibc/archsys.h b/klibc/include/arch/s390/klibc/archsys.h new file mode 100644 index 0000000000..1cd0948f3c --- /dev/null +++ b/klibc/include/arch/s390/klibc/archsys.h @@ -0,0 +1,41 @@ +/* + * arch/s390/include/klibc/archsys.h + * + * Architecture-specific syscall definitions + */ + +#ifndef _KLIBC_ARCHSYS_H +#define _KLIBC_ARCHSYS_H + +/* S/390 only has five syscall parameters, and uses a structure for + 6-argument syscalls. */ + +#ifndef _syscall6 + +#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) { \ + unsigned long __arg[6] = { \ + (unsigned long) arg1, \ + (unsigned long) arg2, \ + (unsigned long) arg3, \ + (unsigned long) arg4, \ + (unsigned long) arg5, \ + (unsigned long) arg6 \ + }; \ + register void *__argp asm("2") = &__arg; \ + long __res; \ + __asm__ __volatile__ ( \ + " svc %b1\n" \ + " lr %0,2" \ + : "=d" (__res) \ + : "i" (__NR_##name), \ + "d" (__argp) \ + : _svc_clobber); \ + __syscall_return(type, __res); \ +} + +#endif /* _syscall6() missing */ + +#endif /* _KLIBC_ARCHSYS_H */ |