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Hash :
61d378f5
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Date :
2019-02-03T00:11:15
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/*
* Copyright © 2009 Guillem Jover <guillem@hadrons.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LIBBSD_NLIST_H
#define LIBBSD_NLIST_H
#ifdef LIBBSD_OVERLAY
#include <sys/cdefs.h>
#else
#include <bsd/sys/cdefs.h>
#endif
struct nlist {
union {
char *n_name;
union {
char *n_name;
struct n_list *n_next;
long n_strx;
} n_un;
};
unsigned char n_type;
char n_other;
short n_desc;
unsigned long n_value;
};
#define n_hash n_desc /* used internally by ld(1); XXX */
/*
* Defines for n_type.
*/
#define N_UNDF 0x00 /* Undefined */
#define N_ABS 0x02 /* Absolute address */
#define N_TEXT 0x04 /* Text segment */
#define N_DATA 0x06 /* Data segment */
#define N_BSS 0x08 /* Bss segment */
#define N_INDR 0x0a /* Alias definition */
#define N_SIZE 0x0c /* Pseudo type, defines a symbol's size */
#define N_COMM 0x12 /* Common reference */
/* GNU extensions */
#define N_SETA 0x14 /* Absolute set element symbol */
#define N_SETT 0x16 /* Text set element symbol */
#define N_SETD 0x18 /* Data set element symbol */
#define N_SETB 0x1a /* Bss set element symbol */
#define N_SETV 0x1c /* Set vector symbol */
/* end GNU extensions */
#define N_FN 0x1e /* File name (N_EXT on) */
#define N_WARN 0x1e /* Warning message (N_EXT off) */
#define N_EXT 0x01 /* External (global) bit, OR'ed in */
#define N_TYPE 0x1e /* Mask for all the type bits */
#define N_STAB 0xe0 /* Mask for debugger symbols -- stab(5) */
#define N_NAME(p) ((p)->n_un.n_name)
/*
* Defines for n_other. It contains the ".type" (AUX) field in the least
* significant 4 bits, and the binding (for weak symbols) in the most
* significant 4 bits.
*/
#define N_AUX(p) ((p)->n_other & 0xf)
#define N_BIND(p) (((unsigned int)(p)->n_other >> 4) & 0xf)
#define N_OTHER(r, v) (((unsigned int)(r) << 4) | ((v) & 0xf))
#define AUX_OBJECT 1 /* Data object */
#define AUX_FUNC 2 /* Function */
/*#define BIND_LOCAL 0 Not used */
/*#define BIND_GLOBAL 1 Not used */
#define BIND_WEAK 2 /* Weak binding */
#define N_FORMAT "%08x" /* namelist value format; XXX */
__BEGIN_DECLS
extern int nlist(const char *filename, struct nlist *list);
__END_DECLS
#endif