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d057b5e76c
"#if 0" surrounding most of contents. (SYSCALL_ERROR_LABEL): Define. (__SYSCALL_CLOBBERS): Add $10. (internal_syscall7): Remove. * sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Likewise.
242 lines
7.5 KiB
C
242 lines
7.5 KiB
C
/* Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _LINUX_MIPS_SYSDEP_H
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#define _LINUX_MIPS_SYSDEP_H 1
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/* There is some commonality. */
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#include <sysdeps/unix/mips/mips64/n64/sysdep.h>
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/* For Linux we can use the system call table in the header file
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/usr/include/asm/unistd.h
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of the kernel. But these symbols do not follow the SYS_* syntax
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so we have to redefine the `SYS_ify' macro here. */
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#undef SYS_ify
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#ifdef __STDC__
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# define SYS_ify(syscall_name) __NR_N64_##syscall_name
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#else
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# define SYS_ify(syscall_name) __NR_N64_/**/syscall_name
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#endif
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#ifdef __ASSEMBLER__
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/* We don't want the label for the error handler to be visible in the symbol
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table when we define it here. */
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#ifdef __PIC__
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# define SYSCALL_ERROR_LABEL 99b
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#endif
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#else /* ! __ASSEMBLER__ */
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/* Define a macro which expands into the inline wrapper code for a system
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call. */
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#undef INLINE_SYSCALL
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#define INLINE_SYSCALL(name, nr, args...) \
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({ INTERNAL_SYSCALL_DECL(err); \
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long result_var = INTERNAL_SYSCALL (name, err, nr, args); \
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if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
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{ \
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__set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
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result_var = -1L; \
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} \
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result_var; })
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#undef INTERNAL_SYSCALL_DECL
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#define INTERNAL_SYSCALL_DECL(err) long err
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#undef INTERNAL_SYSCALL_ERROR_P
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#define INTERNAL_SYSCALL_ERROR_P(val, err) ((long) (err))
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#undef INTERNAL_SYSCALL_ERRNO
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#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
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#undef INTERNAL_SYSCALL
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#define INTERNAL_SYSCALL(name, err, nr, args...) internal_syscall##nr(name, err, args)
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#define internal_syscall0(name, err, dummy...) \
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({ \
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long _sys_result; \
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\
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{ \
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register long __v0 asm("$2"); \
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register long __a3 asm("$7"); \
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__asm__ volatile ( \
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".set\tnoreorder\n\t" \
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"li\t$2, %2\t\t\t# " #name "\n\t" \
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"syscall\n\t" \
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".set reorder" \
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: "=r" (__v0), "=r" (__a3) \
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: "i" (SYS_ify(name)) \
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: __SYSCALL_CLOBBERS); \
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err = __a3; \
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_sys_result = __v0; \
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} \
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_sys_result; \
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})
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#define internal_syscall1(name, err, arg1) \
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({ \
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long _sys_result; \
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\
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{ \
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register long __v0 asm("$2"); \
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register long __a0 asm("$4") = (long) arg1; \
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register long __a3 asm("$7"); \
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__asm__ volatile ( \
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".set\tnoreorder\n\t" \
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"li\t$2, %3\t\t\t# " #name "\n\t" \
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"syscall\n\t" \
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".set reorder" \
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: "=r" (__v0), "=r" (__a3) \
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: "r" (__a0), "i" (SYS_ify(name)) \
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: __SYSCALL_CLOBBERS); \
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err = __a3; \
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_sys_result = __v0; \
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} \
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_sys_result; \
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})
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#define internal_syscall2(name, err, arg1, arg2) \
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({ \
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long _sys_result; \
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\
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{ \
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register long __v0 asm("$2"); \
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register long __a0 asm("$4") = (long) arg1; \
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register long __a1 asm("$5") = (long) arg2; \
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register long __a3 asm("$7"); \
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__asm__ volatile ( \
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".set\tnoreorder\n\t" \
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"li\t$2, %4\t\t\t# " #name "\n\t" \
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"syscall\n\t" \
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".set\treorder" \
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: "=r" (__v0), "=r" (__a3) \
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: "r" (__a0), "r" (__a1), "i" (SYS_ify(name)) \
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: __SYSCALL_CLOBBERS); \
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err = __a3; \
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_sys_result = __v0; \
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} \
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_sys_result; \
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})
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#define internal_syscall3(name, err, arg1, arg2, arg3) \
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({ \
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long _sys_result; \
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\
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{ \
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register long __v0 asm("$2"); \
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register long __a0 asm("$4") = (long) arg1; \
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register long __a1 asm("$5") = (long) arg2; \
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register long __a2 asm("$6") = (long) arg3; \
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register long __a3 asm("$7"); \
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__asm__ volatile ( \
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".set\tnoreorder\n\t" \
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"li\t$2, %5\t\t\t# " #name "\n\t" \
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"syscall\n\t" \
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".set\treorder" \
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: "=r" (__v0), "=r" (__a3) \
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: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
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: __SYSCALL_CLOBBERS); \
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err = __a3; \
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_sys_result = __v0; \
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} \
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_sys_result; \
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})
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#define internal_syscall4(name, err, arg1, arg2, arg3, arg4) \
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({ \
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long _sys_result; \
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\
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{ \
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register long __v0 asm("$2"); \
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register long __a0 asm("$4") = (long) arg1; \
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register long __a1 asm("$5") = (long) arg2; \
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register long __a2 asm("$6") = (long) arg3; \
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register long __a3 asm("$7") = (long) arg4; \
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__asm__ volatile ( \
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".set\tnoreorder\n\t" \
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"li\t$2, %5\t\t\t# " #name "\n\t" \
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"syscall\n\t" \
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".set\treorder" \
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: "=r" (__v0), "+r" (__a3) \
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: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
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: __SYSCALL_CLOBBERS); \
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err = __a3; \
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_sys_result = __v0; \
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} \
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_sys_result; \
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})
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#define internal_syscall5(name, err, arg1, arg2, arg3, arg4, arg5) \
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({ \
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long _sys_result; \
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\
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{ \
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register long __v0 asm("$2"); \
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register long __a0 asm("$4") = (long) arg1; \
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register long __a1 asm("$5") = (long) arg2; \
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register long __a2 asm("$6") = (long) arg3; \
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register long __a3 asm("$7") = (long) arg4; \
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register long __a4 asm("$8") = (long) arg5; \
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__asm__ volatile ( \
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".set\tnoreorder\n\t" \
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"li\t$2, %5\t\t\t# " #name "\n\t" \
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"syscall\n\t" \
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".set\treorder" \
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: "=r" (__v0), "+r" (__a3) \
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: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
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"r" (__a4) \
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: __SYSCALL_CLOBBERS); \
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err = __a3; \
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_sys_result = __v0; \
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} \
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_sys_result; \
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})
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#define internal_syscall6(name, err, arg1, arg2, arg3, arg4, arg5, arg6)\
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({ \
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long _sys_result; \
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\
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{ \
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register long __v0 asm("$2"); \
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register long __a0 asm("$4") = (long) arg1; \
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register long __a1 asm("$5") = (long) arg2; \
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register long __a2 asm("$6") = (long) arg3; \
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register long __a3 asm("$7") = (long) arg4; \
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register long __a4 asm("$8") = (long) arg5; \
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register long __a5 asm("$9") = (long) arg6; \
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__asm__ volatile ( \
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".set\tnoreorder\n\t" \
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"li\t$2, %5\t\t\t# " #name "\n\t" \
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"syscall\n\t" \
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".set\treorder" \
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: "=r" (__v0), "+r" (__a3) \
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: "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
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"r" (__a4), "r" (__a5) \
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: __SYSCALL_CLOBBERS); \
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err = __a3; \
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_sys_result = __v0; \
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} \
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_sys_result; \
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})
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#define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", "$14", "$15", "$24", "$25"
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#endif /* __ASSEMBLER__ */
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#endif /* linux/mips/sysdep.h */
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