diff options
Diffstat (limited to 'libc/sysdeps/linux/sh64/bits/syscalls.h')
| -rw-r--r-- | libc/sysdeps/linux/sh64/bits/syscalls.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sh64/bits/syscalls.h b/libc/sysdeps/linux/sh64/bits/syscalls.h new file mode 100644 index 000000000..e6190303a --- /dev/null +++ b/libc/sysdeps/linux/sh64/bits/syscalls.h @@ -0,0 +1,134 @@ +#ifndef _BITS_SYSCALLS_H +#define _BITS_SYSCALLS_H +#ifndef _SYSCALL_H +# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." +#endif + +/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel + * header files. It also defines the traditional `SYS_<name>' macros for older + * programs. */ +#include <bits/sysnum.h> + +#ifndef __set_errno +# define __set_errno(val) (*__errno_location ()) = (val) +#endif +#ifndef SYS_ify +# define SYS_ify(syscall_name) (__NR_##syscall_name) +#endif + +#ifndef __ASSEMBLER__ + +/* user-visible error numbers are in the range -1 - -125: see <asm-sh64/errno.h> */ +#define __syscall_return(type, res) \ +do { \ + /* Note: when returning from kernel the return value is in r9 \ + ** This prevents conflicts between return value and arg1 \ + ** when dispatching signal handler, in other words makes \ + ** life easier in the system call epilogue (see entry.S) \ + */ \ + register unsigned long __sr2 __asm__ ("r2") = res; \ + if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + errno = -(res); \ + __sr2 = -1; \ + } \ + return (type) (__sr2); \ +} while (0) + +/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */ + +#define _syscall0(type,name) \ +type name(void) \ +{ \ +register unsigned long __sc0 __asm__ ("r9") = ((0x10 << 16) | __NR_##name); \ +__asm__ __volatile__ ("trapa %1" \ + : "=r" (__sc0) \ + : "r" (__sc0) ); \ +__syscall_return(type,__sc0); \ +} + +#define _syscall1(type,name,type1,arg1) \ +type name(type1 arg1) \ +{ \ +register unsigned long __sc0 __asm__ ("r9") = ((0x11 << 16) | __NR_##name); \ +register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \ +__asm__ __volatile__ ("trapa %1" \ + : "=r" (__sc0) \ + : "r" (__sc0), "r" (__sc2)); \ +__syscall_return(type,__sc0); \ +} + +#define _syscall2(type,name,type1,arg1,type2,arg2) \ +type name(type1 arg1,type2 arg2) \ +{ \ +register unsigned long __sc0 __asm__ ("r9") = ((0x12 << 16) | __NR_##name); \ +register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \ +register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \ +__asm__ __volatile__ ("trapa %1" \ + : "=r" (__sc0) \ + : "r" (__sc0), "r" (__sc2), "r" (__sc3) ); \ +__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 __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_##name); \ +register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \ +register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \ +register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \ +__asm__ __volatile__ ("trapa %1" \ + : "=r" (__sc0) \ + : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) ); \ +__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 __sc0 __asm__ ("r9") = ((0x14 << 16) | __NR_##name); \ +register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \ +register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \ +register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \ +register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \ +__asm__ __volatile__ ("trapa %1" \ + : "=r" (__sc0) \ + : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\ +__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 __sc0 __asm__ ("r9") = ((0x15 << 16) | __NR_##name); \ +register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \ +register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \ +register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \ +register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \ +register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5; \ +__asm__ __volatile__ ("trapa %1" \ + : "=r" (__sc0) \ + : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \ + "r" (__sc6)); \ +__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 __sc0 __asm__ ("r9") = ((0x16 << 16) | __NR_##name); \ +register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1; \ +register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2; \ +register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3; \ +register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4; \ +register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5; \ +register unsigned long __sc7 __asm__ ("r7") = (unsigned long) arg6; \ +__asm__ __volatile__ ("trapa %1" \ + : "=r" (__sc0) \ + : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \ + "r" (__sc6), "r" (__sc7)); \ +__syscall_return(type,__sc0); \ +} + +#endif /* __ASSEMBLER__ */ +#endif /* _BITS_SYSCALLS_H */ + |