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Annotation of prex-old/boot/i386/i386/elf_reloc.c, Revision 1.1.1.1

1.1       nbrk        1: /*-
                      2:  * Copyright (c) 2006, Kohsuke Ohtani
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. Neither the name of the author nor the names of any co-contributors
                     14:  *    may be used to endorse or promote products derived from this software
                     15:  *    without specific prior written permission.
                     16:  *
                     17:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
                     18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     27:  * SUCH DAMAGE.
                     28:  */
                     29: #include <boot.h>
                     30: #include <sys/elf.h>
                     31: #include <prex/bootinfo.h>
                     32: #include <platform.h>
                     33:
                     34: int
                     35: relocate_rel(Elf32_Rel *rel, Elf32_Addr sym_val, char *target_sect)
                     36: {
                     37:        Elf32_Addr *where;
                     38:
                     39:        where = (Elf32_Addr *)(target_sect + rel->r_offset);
                     40:
                     41:        switch (ELF32_R_TYPE(rel->r_info)) {
                     42:        case R_386_NONE:
                     43:                break;
                     44:        case R_386_32:
                     45:                *where += (Elf32_Addr)phys_to_virt(sym_val);
                     46:                elf_print("R_386_32: %x -> %x\n", where, *where);
                     47:                break;
                     48:        case R_386_PC32:
                     49:                *where += sym_val - (Elf32_Addr)where;
                     50:                elf_print("R_386_PC32: %x -> %x\n", where, *where);
                     51:                break;
                     52:        default:
                     53:                panic("relocation fail\n");
                     54:                return -1;
                     55:        }
                     56:        return 0;
                     57: }
                     58:
                     59: int
                     60: relocate_rela(Elf32_Rela *rela, Elf32_Addr sym_val, char *target_sec)
                     61: {
                     62:
                     63:        panic("Invalid relocation type\n");
                     64:        return -1;
                     65: }