74 lines
3.0 KiB
C
74 lines
3.0 KiB
C
/* $NetBSD: reloc.h,v 1.8 2003/08/07 16:28:28 agc Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* 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. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
|
|
*
|
|
* @(#)reloc.h 8.1 (Berkeley) 6/10/93
|
|
*
|
|
* from: Header: reloc.h,v 1.6 92/06/20 09:59:37 torek Exp
|
|
*/
|
|
|
|
#ifndef __MIPS_RELOC_H__
|
|
#define __MIPS_RELOC_H__
|
|
/*
|
|
* MIPS relocation types.
|
|
*/
|
|
enum reloc_type {
|
|
MIPS_RELOC_32, /* 32-bit absolute */
|
|
MIPS_RELOC_JMP, /* 26-bit absolute << 2 | high 4 bits of pc */
|
|
MIPS_RELOC_WDISP16, /* 16-bit signed pc-relative << 2 */
|
|
MIPS_RELOC_HI16, /* 16-bit absolute << 16 */
|
|
MIPS_RELOC_HI16_S, /* 16-bit absolute << 16 (+1 if needed) */
|
|
MIPS_RELOC_LO16 /* 16-bit absolute */
|
|
};
|
|
|
|
/*
|
|
* MIPS relocation info.
|
|
*
|
|
* Symbol-relative relocation is done by:
|
|
* 1. start with the value r_addend,
|
|
* 2. locate the appropriate symbol and if defined, add symbol value,
|
|
* 3. if pc relative, subtract pc,
|
|
* 4. if the reloc_type is MIPS_RELOC_HI16_S and the result bit 15 is set,
|
|
* add 0x00010000,
|
|
* 5. shift down 2 or 16 if necessary.
|
|
* The resulting value is then to be stuffed into the appropriate bits
|
|
* in the object (the low 16, or the low 26 bits).
|
|
*/
|
|
struct reloc_info_mips {
|
|
u_long r_address; /* relocation addr (offset in segment) */
|
|
u_int r_index:24, /* segment (r_extern==0) or symbol index */
|
|
r_extern:1, /* if set, r_index is symbol index */
|
|
:2; /* unused */
|
|
enum reloc_type r_type:5; /* relocation type, from above */
|
|
long r_addend; /* value to add to symbol value */
|
|
};
|
|
|
|
#define relocation_info reloc_info_mips
|
|
#endif /* __MIPS_RELOC_H__ */
|