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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
124 lines
4.3 KiB
C
124 lines
4.3 KiB
C
/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)exec.h 8.3 (Berkeley) 1/21/94
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* $FreeBSD$
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*/
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#ifndef _SYS_EXEC_H_
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#define _SYS_EXEC_H_
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/*
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* The following structure is found at the top of the user stack of each
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* user process. The ps program uses it to locate argv and environment
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* strings. Programs that wish ps to display other information may modify
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* it; normally ps_argvstr points to the argv vector, and ps_nargvstr
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* is the same as the program's argc. The fields ps_envstr and ps_nenvstr
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* are the equivalent for the environment.
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*/
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struct ps_strings {
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char **ps_argvstr; /* first of 0 or more argument strings */
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int ps_nargvstr; /* the number of argument strings */
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char **ps_envstr; /* first of 0 or more environment strings */
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int ps_nenvstr; /* the number of environment strings */
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};
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/*
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* Address of ps_strings structure (in user space).
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*/
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#define PS_STRINGS (USRSTACK - sizeof(struct ps_strings))
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#define SPARE_USRSPACE 256
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struct image_params;
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struct execsw {
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int (*ex_imgact) __P((struct image_params *));
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const char *ex_name;
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};
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#include <machine/exec.h>
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#ifdef _KERNEL
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#include <sys/cdefs.h>
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int exec_map_first_page __P((struct image_params *));
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void exec_unmap_first_page __P((struct image_params *));
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int exec_register __P((const struct execsw *));
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int exec_unregister __P((const struct execsw *));
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/*
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* note: name##_mod cannot be const storage because the
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* linker_file_sysinit() function modifies _file in the
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* moduledata_t.
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*/
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#include <sys/module.h>
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#define EXEC_SET(name, execsw_arg) \
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static int name ## _modevent(module_t mod, int type, void *data) \
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{ \
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struct execsw *exec = (struct execsw *)data; \
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int error = 0; \
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switch (type) { \
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case MOD_LOAD: \
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/* printf(#name " module loaded\n"); */ \
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error = exec_register(exec); \
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if (error) \
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printf(#name "register failed\n"); \
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break; \
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case MOD_UNLOAD: \
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/* printf(#name " module unloaded\n"); */ \
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error = exec_unregister(exec); \
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if (error) \
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printf(#name " unregister failed\n"); \
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break; \
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default: \
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break; \
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} \
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return error; \
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} \
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static moduledata_t name ## _mod = { \
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#name, \
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name ## _modevent, \
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(void *)& execsw_arg \
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}; \
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DECLARE_MODULE(name, name ## _mod, SI_SUB_EXEC, SI_ORDER_ANY)
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#endif
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#endif
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