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1.1 root 1: /*-
2: * Copyright (c) 1982, 1986 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
1.1.1.2 ! root 33: * from: @(#)exec.h 7.5 (Berkeley) 2/15/91
! 34: * exec.h,v 1.14 1993/07/05 01:54:22 cgd Exp
1.1 root 35: */
36:
1.1.1.2 ! root 37: #ifndef _SYS_EXEC_H_
! 38: #define _SYS_EXEC_H_
1.1 root 39:
1.1.1.2 ! root 40: #include <sys/param.h>
! 41: #include <sys/cdefs.h>
! 42:
! 43: /*
! 44: * Header prepended to each a.out file.
! 45: * only manipulate the a_midmag field via the
! 46: * N_SETMAGIC/N_GET{MAGIC,MID,FLAG} macros in a.out.h
! 47: */
1.1 root 48: struct exec {
1.1.1.2 ! root 49: unsigned long a_midmag; /* htonl(flags<<26 | mid<<16 | magic) */
! 50: unsigned long a_text; /* text segment size */
! 51: unsigned long a_data; /* initialized data size */
! 52: unsigned long a_bss; /* uninitialized data size */
! 53: unsigned long a_syms; /* symbol table size */
! 54: unsigned long a_entry; /* entry point */
! 55: unsigned long a_trsize; /* text relocation size */
! 56: unsigned long a_drsize; /* data relocation size */
1.1 root 57: };
58:
59: /* a_magic */
60: #define OMAGIC 0407 /* old impure format */
61: #define NMAGIC 0410 /* read-only text */
62: #define ZMAGIC 0413 /* demand load format */
1.1.1.2 ! root 63: #define QMAGIC 0314 /* "compact" demand load format -- DEPRICATE */
1.1 root 64:
1.1.1.2 ! root 65: /*
! 66: * a_mid - keep sorted in numerical order for sanity's sake
! 67: * ensure that: 0 < mid < 0x3ff
! 68: */
1.1 root 69: #define MID_ZERO 0 /* unknown - implementation dependent */
70: #define MID_SUN010 1 /* sun 68010/68020 binary */
71: #define MID_SUN020 2 /* sun 68020-only binary */
1.1.1.2 ! root 72: #define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */
1.1 root 73: #define MID_HP200 200 /* hp200 (68010) BSD binary */
1.1.1.2 ! root 74: #define MID_I386 134 /* i386 BSD binary */
1.1 root 75: #define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
76: #define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
77: #define MID_HPUX800 0x20B /* hp800 HP-UX binary */
78:
1.1.1.2 ! root 79: /*
! 80: * Magic number/exec function table... (execution class loader)
! 81: */
! 82: struct execsw {
! 83: int magic; /* magic number this loader sees*/
! 84: int m_size; /* size of magic number (significant bytes)*/
! 85: int (*load)(); /* loader function*/
! 86: };
! 87:
! 88: extern struct execsw execsw[];
! 89: extern int nexecs;
! 90:
! 91: /*
! 92: * i (cgd) give up; it's damned impossible to find out where a process's
! 93: * args are. 4.4 actually puts pointers in the process address space,
! 94: * above the stack. this is reasonable, and also allows the process to
! 95: * set its ps-visible arguments.
! 96: *
! 97: * PS_STRINGS defines the location of a process's ps_strings structure.
! 98: */
! 99:
! 100: struct ps_strings {
! 101: char *ps_argvstr; /* the argv strings */
! 102: int ps_nargvstr; /* number of argv strings */
! 103: char *ps_envstr; /* the environment strings */
! 104: int ps_nenvstr; /* number of environment strings */
! 105: };
! 106: #define PS_STRINGS \
! 107: ((struct ps_strings *)(USRSTACK - sizeof(struct ps_strings)))
! 108:
! 109: /*
! 110: * the following structures allow exec to put together processes
! 111: * in a more extensible and cleaner way.
! 112: *
! 113: * the exec_package struct defines an executable being execve()'d.
! 114: * it contains the header, the vmspace-building commands, the vnode
! 115: * information, and the arguments associated with the newly-execve'd
! 116: * process.
! 117: *
! 118: * the exec_vmcmd struct defines a command description to be used
! 119: * in creating the new process's vmspace.
! 120: */
! 121:
! 122: struct exec_package {
! 123: struct exec *ep_execp; /* file's exec header */
! 124: struct exec_vmcmd *ep_vcp; /* exec_vmcmds used to build the vmspace */
! 125: struct vnode *ep_vp; /* executable's vnode */
! 126: struct vattr *ep_vap; /* executable's attributes */
! 127: unsigned long ep_taddr; /* process's text address */
! 128: unsigned long ep_tsize; /* size of process's text */
! 129: unsigned long ep_daddr; /* process's data(+bss) address */
! 130: unsigned long ep_dsize; /* size of process's data(+bss) */
! 131: unsigned long ep_maxsaddr; /* process's max stack address ("top") */
! 132: unsigned long ep_minsaddr; /* process's min stack address ("bottom") */
! 133: unsigned long ep_ssize; /* size of process's stack */
! 134: unsigned long ep_entry; /* process's entry point */
! 135: #ifdef notdef
! 136: char *ep_argbuf; /* argument buffer. generally same as argv */
! 137: int ep_argc; /* count of process arguments */
! 138: char *ep_argv; /* process arguments, null seperated */
! 139: int ep_envc; /* count of process environment strings */
! 140: char *ep_env; /* process enviornment strings, null seperated */
! 141: #endif
! 142: };
! 143:
! 144: struct proc;
! 145:
! 146: struct exec_vmcmd {
! 147: struct exec_vmcmd *ev_next; /* next command on the chain */
! 148: /* procedure to run */
! 149: int (*ev_proc) __P((struct proc *p, struct exec_vmcmd *cmd));
! 150: unsigned long ev_len; /* length of the segment to map */
! 151: unsigned long ev_addr; /* address in the vmspace to place it at */
! 152: struct vnode *ev_vp; /* vnode pointer for the file w/the data */
! 153: unsigned long ev_offset; /* offset in the file for the data */
! 154: unsigned ev_prot; /* protections for segment */
! 155: };
! 156:
! 157: #ifdef KERNEL
! 158: struct exec_vmcmd *new_vmcmd __P(( \
! 159: int (*proc) __P((struct proc *p, struct exec_vmcmd *)), \
! 160: unsigned long len, \
! 161: unsigned long addr, \
! 162: struct vnode *vp, \
! 163: unsigned long offset, \
! 164: unsigned long prot));
! 165: void kill_vmcmd __P((struct exec_vmcmd **));
! 166: int exec_makecmds __P((struct proc *, struct exec_package *));
! 167: int exec_runcmds __P((struct proc *, struct exec_package *));
! 168: int exec_prep_qmagic __P((struct proc *, struct exec_package *));
! 169: int exec_prep_zmagic __P((struct proc *, struct exec_package *));
! 170: int vmcmd_map_pagedvn __P((struct proc *, struct exec_vmcmd *));
! 171: int vmcmd_map_zero __P((struct proc *, struct exec_vmcmd *));
! 172: #endif
! 173:
! 174: #endif /* !_SYS_EXEC_H_ */
! 175:
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