133 lines
4.6 KiB
C
133 lines
4.6 KiB
C
/* $NetBSD: reloc.h,v 1.3 2000/12/04 01:49:34 mrg Exp $ */
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/*
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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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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* 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, Lawrence Berkeley Laboratory.
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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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* @(#)reloc.h 8.1 (Berkeley) 6/11/93
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*/
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/*
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* SPARC relocations. The linker has, unfortunately, a large number
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* of link types. We do not do dynamic linking (yet?) but we define
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* the dynamic link types.
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*/
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enum reloc_type {
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/* architecturally-required types */
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RELOC_8, /* 8-bit absolute */
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RELOC_16, /* 16-bit absolute */
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RELOC_32, /* 32-bit absolute */
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RELOC_DISP8, /* 8-bit pc-relative */
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RELOC_DISP16, /* 16-bit pc-relative */
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RELOC_DISP32, /* 32-bit pc-relative */
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RELOC_WDISP30, /* 30-bit pc-relative signed word */
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RELOC_WDISP22, /* 22-bit pc-relative signed word */
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RELOC_HI22, /* 22-bit `%hi' (ie, sethi %hi(X),%l0) */
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RELOC_22, /* 22-bit non-%hi (i.e., sethi X,%l0) */
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RELOC_13, /* 13-bit absolute */
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RELOC_LO10, /* 10-bit `%lo' */
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/* gnu ld understands some of these, but I do not */
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RELOC_SFA_BASE, /* ? */
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RELOC_SFA_OFF13, /* ? */
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RELOC_BASE10, /* ? */
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RELOC_BASE13, /* ? */
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RELOC_BASE22, /* ? */
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/* gnu ld does not use these but Sun linker does */
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/* we define them anyway (note that they are included
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in the freely-available gas sources!) */
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RELOC_PC10, /* ? */
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RELOC_PC22, /* ? */
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RELOC_JMP_TBL, /* ? */
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RELOC_SEGOFF16, /* ? */
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RELOC_GLOB_DAT, /* ? */
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RELOC_JMP_SLOT, /* ? */
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RELOC_RELATIVE, /* ? */
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RELOC_UA_32,
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/* The following are LP64 relocations */
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RELOC_PLT32,
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RELOC_HIPLT22,
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RELOC_LOPLT10,
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RELOC_LOPLT10,
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RELOC_PCPLT22,
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RELOC_PCPLT32,
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RELOC_10,
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RELOC_11,
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RELOC_64,
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RELOC_OLO10,
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RELOC_HH22,
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RELOC_HM10,
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RELOC_LM22,
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RELOC_PC_HH22,
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RELOC_PC_HM10,
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RELOC_PC_LM22,
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RELOC_WDISP16,
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RELOC_WDISP19,
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RELOC_GLOB_JMP,
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RELOC_7,
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RELOC_5,
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RELOC_6
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};
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/*
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* SPARC relocation info.
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*
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* Symbol-relative relocation is done by:
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* 1. locating the appropriate symbol
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* 2. if defined, adding (value + r_addend), subtracting pc if pc-rel,
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* and then shifting down 2 or 10 or 13 if necessary.
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* The resulting value is then to be stuffed into the appropriate bits
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* in the object (the low 22, or the high 30, or ..., etc).
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*/
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struct reloc_info_sparc {
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u_long r_address; /* relocation addr (offset in segment) */
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u_int r_index:24, /* segment (r_extern==0) or symbol index */
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r_extern:1, /* if set, r_index is symbol index */
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:2; /* unused */
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enum reloc_type r_type:5; /* relocation type, from above */
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long r_addend; /* value to add to symbol value */
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};
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