/*- * Copyright (c) 1992 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * * from: @(#)reloc.h 7.2 (Berkeley) 2/4/93 * from: Header: reloc.h,v 1.6 92/06/20 09:59:37 torek Exp * $Id: reloc.h,v 1.1.1.1 1993/10/12 03:22:41 deraadt Exp $ */ /* * 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 */ };