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