diff options
Diffstat (limited to 'libc/sysdeps/linux/nios2/bits/syscalls.h')
| -rw-r--r-- | libc/sysdeps/linux/nios2/bits/syscalls.h | 290 |
1 files changed, 285 insertions, 5 deletions
diff --git a/libc/sysdeps/linux/nios2/bits/syscalls.h b/libc/sysdeps/linux/nios2/bits/syscalls.h index b21851333..ec5370712 100644 --- a/libc/sysdeps/linux/nios2/bits/syscalls.h +++ b/libc/sysdeps/linux/nios2/bits/syscalls.h @@ -4,12 +4,292 @@ # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead." #endif -#include <features.h> +#ifndef __ASSEMBLER__ -/* Do something very evil for now. Until we create our own syscall - * macros, short circuit bits/sysnum.h and use asm/unistd.h instead */ -#warning "fixme -- add arch specific syscall macros.h" -#include <asm/unistd.h> +#include <errno.h> +#include <asm/traps.h> +#define __syscall_return(type, res) \ +do { \ + if ((unsigned long)(res) >= (unsigned long)(-125)) { \ + \ + /* avoid using res which is declared to be in \ + register r2; errno might expand to a function \ + call and clobber it. */ \ + \ + int __err = -(res); \ + errno = __err; \ + res = -1; \ + } \ + return (type) (res); \ +} while (0) + +#define _syscall0(type,name) \ +type name(void) \ +{ \ + long __res; \ + \ + __asm__ __volatile__ ( \ + \ + " \n\t" \ + \ + " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + " movi r3, %1\n\t" /* __NR_##name */ \ + \ + " trap\n\t" \ + " mov %0, r2\n\t" /* syscall rtn */ \ + \ + " \n\t" \ + \ + : "=r" (__res) /* %0 */ \ + \ + : "i" (__NR_##name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + \ + : "r2" /* Clobbered */ \ + , "r3" /* Clobbered */ \ + ); \ + \ +__syscall_return(type,__res); \ +} + +#define _syscall1(type,name,atype,a) \ +type name(atype a) \ +{ \ + long __res; \ + \ + __asm__ __volatile__ ( \ + \ + " \n\t" \ + \ + " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + " movi r3, %1\n\t" /* __NR_##name */ \ + " mov r4, %3\n\t" /* (long) a */ \ + \ + " trap\n\t" \ + " mov %0, r2\n\t" /* syscall rtn */ \ + \ + " \n\t" \ + \ + : "=r" (__res) /* %0 */ \ + \ + : "i" (__NR_##name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + , "r" ((long) a) /* %3 */ \ + \ + : "r2" /* Clobbered */ \ + , "r3" /* Clobbered */ \ + , "r4" /* Clobbered */ \ + ); \ + \ +__syscall_return(type,__res); \ +} + +#define _syscall2(type,name,atype,a,btype,b) \ +type name(atype a,btype b) \ +{ \ + long __res; \ + \ + __asm__ __volatile__ ( \ + \ + " \n\t" \ + \ + " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + " movi r3, %1\n\t" /* __NR_##name */ \ + " mov r4, %3\n\t" /* (long) a */ \ + " mov r5, %4\n\t" /* (long) b */ \ + \ + " trap\n\t" \ + " mov %0, r2\n\t" /* syscall rtn */ \ + \ + " \n\t" \ + \ + : "=r" (__res) /* %0 */ \ + \ + : "i" (__NR_##name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + , "r" ((long) a) /* %3 */ \ + , "r" ((long) b) /* %4 */ \ + \ + : "r2" /* Clobbered */ \ + , "r3" /* Clobbered */ \ + , "r4" /* Clobbered */ \ + , "r5" /* Clobbered */ \ + ); \ + \ +__syscall_return(type,__res); \ +} + +#define _syscall3(type,name,atype,a,btype,b,ctype,c) \ +type name(atype a,btype b,ctype c) \ +{ \ + long __res; \ + \ + __asm__ __volatile__ ( \ + \ + " \n\t" \ + \ + " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + " movi r3, %1\n\t" /* __NR_##name */ \ + " mov r4, %3\n\t" /* (long) a */ \ + " mov r5, %4\n\t" /* (long) b */ \ + " mov r6, %5\n\t" /* (long) c */ \ + \ + " trap\n\t" \ + " mov %0, r2\n\t" /* syscall rtn */ \ + \ + " \n\t" \ + \ + : "=r" (__res) /* %0 */ \ + \ + : "i" (__NR_##name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + , "r" ((long) a) /* %3 */ \ + , "r" ((long) b) /* %4 */ \ + , "r" ((long) c) /* %5 */ \ + \ + : "r2" /* Clobbered */ \ + , "r3" /* Clobbered */ \ + , "r4" /* Clobbered */ \ + , "r5" /* Clobbered */ \ + , "r6" /* Clobbered */ \ + ); \ + \ +__syscall_return(type,__res); \ +} + +#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \ +type name (atype a, btype b, ctype c, dtype d) \ +{ \ + long __res; \ + \ + __asm__ __volatile__ ( \ + \ + " \n\t" \ + \ + " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + " movi r3, %1\n\t" /* __NR_##name */ \ + " mov r4, %3\n\t" /* (long) a */ \ + " mov r5, %4\n\t" /* (long) b */ \ + " mov r6, %5\n\t" /* (long) c */ \ + " mov r7, %6\n\t" /* (long) d */ \ + \ + " trap\n\t" \ + " mov %0, r2\n\t" /* syscall rtn */ \ + \ + " \n\t" \ + \ + : "=r" (__res) /* %0 */ \ + \ + : "i" (__NR_##name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + , "r" ((long) a) /* %3 */ \ + , "r" ((long) b) /* %4 */ \ + , "r" ((long) c) /* %5 */ \ + , "r" ((long) d) /* %6 */ \ + \ + : "r2" /* Clobbered */ \ + , "r3" /* Clobbered */ \ + , "r4" /* Clobbered */ \ + , "r5" /* Clobbered */ \ + , "r6" /* Clobbered */ \ + , "r7" /* Clobbered */ \ + ); \ + \ +__syscall_return(type,__res); \ +} + +#define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \ +type name (atype a,btype b,ctype c,dtype d,etype e) \ +{ \ + long __res; \ + \ + __asm__ __volatile__ ( \ + \ + " \n\t" \ + \ + " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + " movi r3, %1\n\t" /* __NR_##name */ \ + " mov r4, %3\n\t" /* (long) a */ \ + " mov r5, %4\n\t" /* (long) b */ \ + " mov r6, %5\n\t" /* (long) c */ \ + " mov r7, %6\n\t" /* (long) c */ \ + " mov r8, %7\n\t" /* (long) e */ \ + \ + " trap\n\t" \ + " mov %0, r2\n\t" /* syscall rtn */ \ + \ + " \n\t" \ + \ + : "=r" (__res) /* %0 */ \ + \ + : "i" (__NR_##name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + , "r" ((long) a) /* %3 */ \ + , "r" ((long) b) /* %4 */ \ + , "r" ((long) c) /* %5 */ \ + , "r" ((long) d) /* %6 */ \ + , "r" ((long) e) /* %7 */ \ + \ + : "r2" /* Clobbered */ \ + , "r3" /* Clobbered */ \ + , "r4" /* Clobbered */ \ + , "r5" /* Clobbered */ \ + , "r6" /* Clobbered */ \ + , "r7" /* Clobbered */ \ + , "r8" /* Clobbered */ \ + ); \ + \ +__syscall_return(type,__res); \ +} + +#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \ +type name (atype a,btype b,ctype c,dtype d,etype e,ftype f) \ +{ \ + long __res; \ + \ + __asm__ __volatile__ ( \ + \ + " \n\t" \ + \ + " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + " movi r3, %1\n\t" /* __NR_##name */ \ + " mov r4, %3\n\t" /* (long) a */ \ + " mov r5, %4\n\t" /* (long) b */ \ + " mov r6, %5\n\t" /* (long) c */ \ + " mov r7, %6\n\t" /* (long) c */ \ + " mov r8, %7\n\t" /* (long) e */ \ + " mov r9, %8\n\t" /* (long) f */ \ + \ + " trap\n\t" \ + " mov %0, r2\n\t" /* syscall rtn */ \ + \ + " \n\t" \ + \ + : "=r" (__res) /* %0 */ \ + \ + : "i" (__NR_##name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + , "r" ((long) a) /* %3 */ \ + , "r" ((long) b) /* %4 */ \ + , "r" ((long) c) /* %5 */ \ + , "r" ((long) d) /* %6 */ \ + , "r" ((long) e) /* %7 */ \ + , "r" ((long) f) /* %8 */ \ + \ + : "r2" /* Clobbered */ \ + , "r3" /* Clobbered */ \ + , "r4" /* Clobbered */ \ + , "r5" /* Clobbered */ \ + , "r6" /* Clobbered */ \ + , "r7" /* Clobbered */ \ + , "r8" /* Clobbered */ \ + , "r9" /* Clobbered */ \ + ); \ + \ +__syscall_return(type,__res); \ +} + +#endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */ |