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Annotation of sys/compat/freebsd/freebsd_exec.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: freebsd_exec.h,v 1.7 2004/04/15 00:22:42 tedu Exp $   */
                      2:
                      3: /*-
                      4:  * Copyright (c) 1992, 1993
                      5:  *     The Regents of the University of California.  All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. Neither the name of the University nor the names of its contributors
                     16:  *    may be used to endorse or promote products derived from this software
                     17:  *    without specific prior written permission.
                     18:  *
                     19:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     29:  * SUCH DAMAGE.
                     30:  *
                     31:  *     from: @(#)exec.h        8.1 (Berkeley) 6/11/93
                     32:  *     from: imgact_aout.h,v 1.2 1994/12/30 08:06:19 bde Exp
                     33:  */
                     34:
                     35: #ifndef        _FREEBSD_EXEC_H
                     36: #define        _FREEBSD_EXEC_H
                     37:
                     38: #define FREEBSD_N_GETMAGIC(ex) \
                     39:        ( (ex).a_midmag & 0xffff )
                     40: #define FREEBSD_N_GETMID(ex) \
                     41:        ( ((ex).a_midmag >> 16) & 0x03ff )
                     42: #define FREEBSD_N_GETFLAG(ex) \
                     43:        ( ((ex).a_midmag >> 26) & 0x3f )
                     44: #define FREEBSD_N_SETMAGIC(ex,mag,mid,flag) \
                     45:        ( (ex).a_midmag = (((flag) & 0x3f) <<26) | (((mid) & 0x03ff) << 16) | \
                     46:        ((mag) & 0xffff) )
                     47:
                     48: #define FREEBSD_N_ALIGN(ex,x) \
                     49:        (FREEBSD_N_GETMAGIC(ex) == ZMAGIC || \
                     50:         FREEBSD_N_GETMAGIC(ex) == QMAGIC ? \
                     51:         ((x) + FREEBSD___LDPGSZ - 1) & \
                     52:         ~(unsigned long)(FREEBSD___LDPGSZ - 1) : (x))
                     53:
                     54: /* Valid magic number check. */
                     55: #define        FREEBSD_N_BADMAG(ex) \
                     56:        (FREEBSD_N_GETMAGIC(ex) != OMAGIC && \
                     57:         FREEBSD_N_GETMAGIC(ex) != NMAGIC && \
                     58:         FREEBSD_N_GETMAGIC(ex) != ZMAGIC && \
                     59:         FREEBSD_N_GETMAGIC(ex) != QMAGIC)
                     60:
                     61: /* Address of the bottom of the text segment. */
                     62: #define FREEBSD_N_TXTADDR(ex) \
                     63:        ((FREEBSD_N_GETMAGIC(ex) == OMAGIC || \
                     64:          FREEBSD_N_GETMAGIC(ex) == NMAGIC || \
                     65:          FREEBSD_N_GETMAGIC(ex) == ZMAGIC) ? 0 : __LDPGSZ)
                     66:
                     67: /* Address of the bottom of the data segment. */
                     68: #define FREEBSD_N_DATADDR(ex) \
                     69:        FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTADDR(ex) + (ex).a_text)
                     70:
                     71: /* Text segment offset. */
                     72: #define        FREEBSD_N_TXTOFF(ex) \
                     73:        (FREEBSD_N_GETMAGIC(ex) == ZMAGIC ? __LDPGSZ : \
                     74:         FREEBSD_N_GETMAGIC(ex) == QMAGIC ? 0 : sizeof(struct exec))
                     75:
                     76: /* Data segment offset. */
                     77: #define        FREEBSD_N_DATOFF(ex) \
                     78:        FREEBSD_N_ALIGN(ex, FREEBSD_N_TXTOFF(ex) + (ex).a_text)
                     79:
                     80: /* Relocation table offset. */
                     81: #define FREEBSD_N_RELOFF(ex) \
                     82:        FREEBSD_N_ALIGN(ex, FREEBSD_N_DATOFF(ex) + (ex).a_data)
                     83:
                     84: /* Symbol table offset. */
                     85: #define FREEBSD_N_SYMOFF(ex) \
                     86:        (FREEBSD_N_RELOFF(ex) + (ex).a_trsize + (ex).a_drsize)
                     87:
                     88: /* String table offset. */
                     89: #define        FREEBSD_N_STROFF(ex)    (FREEBSD_N_SYMOFF(ex) + (ex).a_syms)
                     90:
                     91: #define FREEBSD_ELF_AUX_ARGSIZ (sizeof(AuxInfo) * 15 / sizeof(char *))
                     92:
                     93: #define        FREEBSD_AOUT_HDR_SIZE   sizeof(struct exec)
                     94:
                     95: int exec_freebsd_aout_makecmds(struct proc *, struct exec_package *);
                     96: int exec_freebsd_elf32_makecmds(struct proc *, struct exec_package *);
                     97: int freebsd_elf_probe(struct proc *, struct exec_package *, char *,
                     98:     u_long *, u_int8_t *);
                     99:
                    100: extern char freebsd_sigcode[], freebsd_esigcode[];
                    101:
                    102: #endif /* !_FREEBSD_EXEC_H */