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author | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
commit | 28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch) | |
tree | 15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/mach/sysdep.h | |
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initial import
Diffstat (limited to 'sysdeps/mach/sysdep.h')
-rw-r--r-- | sysdeps/mach/sysdep.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/sysdeps/mach/sysdep.h b/sysdeps/mach/sysdep.h new file mode 100644 index 0000000..9a8dbd5 --- /dev/null +++ b/sysdeps/mach/sysdep.h @@ -0,0 +1,82 @@ +/* Copyright (C) 1994, 1995 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#ifdef ASSEMBLER + +/* Get the Mach definitions of ENTRY and kernel_trap. */ +#include <mach/machine/syscall_sw.h> + +/* The Mach definitions assume underscores should be prepended to + symbol names. Redefine them to do so only when appropriate. */ +#undef EXT +#undef LEXT +#define EXT(x) C_SYMBOL_NAME(x) +#define LEXT(x) C_SYMBOL_NAME(x##:) + +#endif + +/* This is invoked by things run when there is random lossage, before they + try to do anything else. Just to be safe, deallocate the reply port so + bogons arriving on it don't foul up future RPCs. */ + +#ifndef ASSEMBLER +#define FATAL_PREPARE_INCLUDE <mach/mig_support.h> +#define FATAL_PREPARE __mig_dealloc_reply_port (MACH_PORT_NULL) +#endif + +/* sysdeps/mach/MACHINE/sysdep.h should define the following macros. */ + +/* Produce a text assembler label for the C global symbol NAME. */ +#ifndef ENTRY +#define ENTRY(name) .error ENTRY not defined by sysdeps/mach/MACHINE/sysdep.h +/* This is not used on all machines. */ +#endif + +/* Set variables ARGC, ARGV, and ENVP for the arguments + left on the stack by the microkernel. */ +#ifndef SNARF_ARGS +#define SNARF_ARGS(argc, argv, envp) +#error SNARF_ARGS not defined by sysdeps/mach/MACHINE/sysdep.h +#endif + +/* Call the C function FN with no arguments, + on a stack starting at SP (as returned by *_cthread_init_routine). + You don't need to deal with FN returning; it shouldn't. */ +#ifndef CALL_WITH_SP +#define CALL_WITH_SP(fn, sp) +#error CALL_WITH_SP not defined by sysdeps/mach/MACHINE/sysdep.h +#endif + +/* LOSE can be defined as the `halt' instruction or something + similar which will cause the process to die in a characteristic + way suggesting a bug. */ +#ifndef LOSE +#define LOSE ({ volatile int zero = 0; zero / zero; }) +#endif + +/* One of these should be defined to specify the stack direction. */ +#if !defined (STACK_GROWTH_UP) && !defined (STACK_GROWTH_DOWN) +#error stack direction unspecified +#endif + +/* Used by some assembly code. */ +#ifdef NO_UNDERSCORES +#define C_SYMBOL_NAME(name) name +#else +#define C_SYMBOL_NAME(name) _##name +#endif |