diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h new file mode 100644 index 0000000000..be343aabca --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/sysdep.h @@ -0,0 +1,242 @@ +/* Copyright (C) 2000, 2002, 2003, 2004 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 + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _LINUX_MIPS_SYSDEP_H +#define _LINUX_MIPS_SYSDEP_H 1 + +/* There is some commonality. */ +#include <sysdeps/unix/mips/mips64/n32/sysdep.h> + +/* For Linux we can use the system call table in the header file + /usr/include/asm/unistd.h + of the kernel. But these symbols do not follow the SYS_* syntax + so we have to redefine the `SYS_ify' macro here. */ +#undef SYS_ify +#ifdef __STDC__ +# define SYS_ify(syscall_name) __NR_N32_##syscall_name +#else +# define SYS_ify(syscall_name) __NR_N32_/**/syscall_name +#endif + +#ifdef __ASSEMBLER__ + +/* We don't want the label for the error handler to be visible in the symbol + table when we define it here. */ +#ifdef __PIC__ +# define SYSCALL_ERROR_LABEL 99b +#endif + +#else /* ! __ASSEMBLER__ */ + +/* Define a macro which expands into the inline wrapper code for a system + call. */ +#undef INLINE_SYSCALL +#define INLINE_SYSCALL(name, nr, args...) \ + ({ INTERNAL_SYSCALL_DECL(err); \ + long result_var = INTERNAL_SYSCALL (name, err, nr, args); \ + if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \ + { \ + __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \ + result_var = -1L; \ + } \ + result_var; }) + +#undef INTERNAL_SYSCALL_DECL +#define INTERNAL_SYSCALL_DECL(err) long err + +#undef INTERNAL_SYSCALL_ERROR_P +#define INTERNAL_SYSCALL_ERROR_P(val, err) ((long) (err)) + +#undef INTERNAL_SYSCALL_ERRNO +#define INTERNAL_SYSCALL_ERRNO(val, err) (val) + +#undef INTERNAL_SYSCALL +#define INTERNAL_SYSCALL(name, err, nr, args...) internal_syscall##nr(name, err, args) + +#define internal_syscall0(name, err, dummy...) \ +({ \ + long _sys_result; \ + \ + { \ + register long __v0 asm("$2"); \ + register long __a3 asm("$7"); \ + __asm__ volatile ( \ + ".set\tnoreorder\n\t" \ + "li\t$2, %2\t\t\t# " #name "\n\t" \ + "syscall\n\t" \ + ".set reorder" \ + : "=r" (__v0), "=r" (__a3) \ + : "i" (SYS_ify(name)) \ + : __SYSCALL_CLOBBERS); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall1(name, err, arg1) \ +({ \ + long _sys_result; \ + \ + { \ + register long long __v0 asm("$2"); \ + register long long __a0 asm("$4") = (long long) arg1; \ + register long long __a3 asm("$7"); \ + __asm__ volatile ( \ + ".set\tnoreorder\n\t" \ + "li\t$2, %3\t\t\t# " #name "\n\t" \ + "syscall\n\t" \ + ".set reorder" \ + : "=r" (__v0), "=r" (__a3) \ + : "r" (__a0), "i" (SYS_ify(name)) \ + : __SYSCALL_CLOBBERS); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall2(name, err, arg1, arg2) \ +({ \ + long _sys_result; \ + \ + { \ + register long long __v0 asm("$2"); \ + register long long __a0 asm("$4") = (long long) arg1; \ + register long long __a1 asm("$5") = (long long) arg2; \ + register long long __a3 asm("$7"); \ + __asm__ volatile ( \ + ".set\tnoreorder\n\t" \ + "li\t$2, %4\t\t\t# " #name "\n\t" \ + "syscall\n\t" \ + ".set\treorder" \ + : "=r" (__v0), "=r" (__a3) \ + : "r" (__a0), "r" (__a1), "i" (SYS_ify(name)) \ + : __SYSCALL_CLOBBERS); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall3(name, err, arg1, arg2, arg3) \ +({ \ + long _sys_result; \ + \ + { \ + register long long __v0 asm("$2"); \ + register long long __a0 asm("$4") = (long long) arg1; \ + register long long __a1 asm("$5") = (long long) arg2; \ + register long long __a2 asm("$6") = (long long) arg3; \ + register long long __a3 asm("$7"); \ + __asm__ volatile ( \ + ".set\tnoreorder\n\t" \ + "li\t$2, %5\t\t\t# " #name "\n\t" \ + "syscall\n\t" \ + ".set\treorder" \ + : "=r" (__v0), "=r" (__a3) \ + : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \ + : __SYSCALL_CLOBBERS); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall4(name, err, arg1, arg2, arg3, arg4) \ +({ \ + long _sys_result; \ + \ + { \ + register long long __v0 asm("$2"); \ + register long long __a0 asm("$4") = (long long) arg1; \ + register long long __a1 asm("$5") = (long long) arg2; \ + register long long __a2 asm("$6") = (long long) arg3; \ + register long long __a3 asm("$7") = (long long) arg4; \ + __asm__ volatile ( \ + ".set\tnoreorder\n\t" \ + "li\t$2, %5\t\t\t# " #name "\n\t" \ + "syscall\n\t" \ + ".set\treorder" \ + : "=r" (__v0), "+r" (__a3) \ + : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \ + : __SYSCALL_CLOBBERS); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall5(name, err, arg1, arg2, arg3, arg4, arg5) \ +({ \ + long _sys_result; \ + \ + { \ + register long long __v0 asm("$2"); \ + register long long __a0 asm("$4") = (long long) arg1; \ + register long long __a1 asm("$5") = (long long) arg2; \ + register long long __a2 asm("$6") = (long long) arg3; \ + register long long __a3 asm("$7") = (long long) arg4; \ + register long long __a4 asm("$8") = (long long) arg5; \ + __asm__ volatile ( \ + ".set\tnoreorder\n\t" \ + "li\t$2, %5\t\t\t# " #name "\n\t" \ + "syscall\n\t" \ + ".set\treorder" \ + : "=r" (__v0), "+r" (__a3) \ + : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \ + "r" (__a4) \ + : __SYSCALL_CLOBBERS); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define internal_syscall6(name, err, arg1, arg2, arg3, arg4, arg5, arg6)\ +({ \ + long _sys_result; \ + \ + { \ + register long long __v0 asm("$2"); \ + register long long __a0 asm("$4") = (long long) arg1; \ + register long long __a1 asm("$5") = (long long) arg2; \ + register long long __a2 asm("$6") = (long long) arg3; \ + register long long __a3 asm("$7") = (long long) arg4; \ + register long long __a4 asm("$8") = (long long) arg5; \ + register long long __a5 asm("$9") = (long long) arg6; \ + __asm__ volatile ( \ + ".set\tnoreorder\n\t" \ + "li\t$2, %5\t\t\t# " #name "\n\t" \ + "syscall\n\t" \ + ".set\treorder" \ + : "=r" (__v0), "+r" (__a3) \ + : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \ + "r" (__a4), "r" (__a5) \ + : __SYSCALL_CLOBBERS); \ + err = __a3; \ + _sys_result = __v0; \ + } \ + _sys_result; \ +}) + +#define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \ + "$14", "$15", "$24", "$25", "memory" +#endif /* __ASSEMBLER__ */ + +#endif /* linux/mips/sysdep.h */ |