diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h | 57 |
1 files changed, 56 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h index 78ff4edcc6..524a32b9b4 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1992,1997,1998,1999,2000,2001 Free Software Foundation, Inc. +/* Copyright (C) 1992,97,98,99,2000,01,02 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -32,4 +32,59 @@ # define SYS_ify(syscall_name) __NR_/**/syscall_name #endif +#ifndef __ASSEMBLER__ + +# include <errno.h> + +# undef INLINE_SYSCALL +# define INLINE_SYSCALL(name, nr, args...) \ + ({ \ + long ret, err; \ + LOADARGS_##nr(name, args); \ + __asm__ ("sc\n\t" \ + "mfcr %1\n\t" \ + : "=r" (r3), "=r" (err) \ + : ASM_INPUT_##nr \ + : "cc", "memory"); \ + ret = r3; \ + if (err & 1 << 28) \ + { \ + __set_errno (ret); \ + ret = -1L; \ + } \ + ret; \ + }) + +# define LOADARGS_0(name) \ + register long r0 __asm__ ("r0") = __NR_##name; \ + register long r3 __asm__ ("r3") +# define LOADARGS_1(name, arg1) \ + LOADARGS_0(name) = (long) (arg1) +# define LOADARGS_2(name, arg1, arg2) \ + LOADARGS_1(name, arg1); \ + register long r4 __asm__ ("r4") = (long) (arg2) +# define LOADARGS_3(name, arg1, arg2, arg3) \ + LOADARGS_2(name, arg1, arg2); \ + register long r5 __asm__ ("r5") = (long) (arg3) +# define LOADARGS_4(name, arg1, arg2, arg3, arg4) \ + LOADARGS_3(name, arg1, arg2, arg3); \ + register long r6 __asm__ ("r6") = (long) (arg4) +# define LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5) \ + LOADARGS_4(name, arg1, arg2, arg3, arg4); \ + register long r7 __asm__ ("r7") = (long) (arg5) +# define LOADARGS_6(name, arg1, arg2, arg3, arg4, arg5, arg6) \ + LOADARGS_5(name, arg1, arg2, arg3, arg4, arg5); \ + register long r8 __asm__ ("r8") = (long) (arg6) + +# define ASM_INPUT_0 "r" (r0) +# define ASM_INPUT_1 ASM_INPUT_0, "0" (r3) +# define ASM_INPUT_2 ASM_INPUT_1, "r" (r4) +# define ASM_INPUT_3 ASM_INPUT_2, "r" (r5) +# define ASM_INPUT_4 ASM_INPUT_3, "r" (r6) +# define ASM_INPUT_5 ASM_INPUT_4, "r" (r7) +# define ASM_INPUT_6 ASM_INPUT_5, "r" (r8) + +#endif /* __ASSEMBLER__ */ + + #endif /* linux/powerpc/sysdep.h */ |