Annotation of prex-old/boot/avr32/avr32/elf_reloc.c, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * $Id$
! 3: */
! 4: /*-
! 5: * Copyright (c) 2006, Kohsuke Ohtani
! 6: * All rights reserved.
! 7: *
! 8: * Redistribution and use in source and binary forms, with or without
! 9: * modification, are permitted provided that the following conditions
! 10: * are met:
! 11: * 1. Redistributions of source code must retain the above copyright
! 12: * notice, this list of conditions and the following disclaimer.
! 13: * 2. Redistributions in binary form must reproduce the above copyright
! 14: * notice, this list of conditions and the following disclaimer in the
! 15: * documentation and/or other materials provided with the distribution.
! 16: * 3. Neither the name of the author nor the names of any co-contributors
! 17: * may be used to endorse or promote products derived from this software
! 18: * without specific prior written permission.
! 19: *
! 20: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 23: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 30: * SUCH DAMAGE.
! 31: */
! 32:
! 33: #include <boot.h>
! 34: #include <sys/elf.h>
! 35: #include <prex/bootinfo.h>
! 36: #include <platform.h>
! 37:
! 38: int
! 39: relocate_rel(Elf32_Rel *rel, Elf32_Addr sym_val, char *target_sect)
! 40: {
! 41: Elf32_Addr *where, tmp;
! 42: Elf32_Sword addend;
! 43:
! 44: where = (Elf32_Addr *)(target_sect + rel->r_offset);
! 45:
! 46: switch (ELF32_R_TYPE(rel->r_info)) {
! 47: case R_AVR32_NONE:
! 48: break;
! 49: case R_AVR32_32:
! 50: *where += (Elf32_Addr)phys_to_virt(sym_val);
! 51: elf_print("R_AVR32_32: %x -> %x\n", where, *where);
! 52: break;
! 53: case R_AVR32_32_PCREL:
! 54: addend = *where & 0x00ffffff;
! 55: if (addend & 0x00800000)
! 56: addend |= 0xff000000;
! 57: tmp = sym_val - (Elf32_Addr)where + (addend << 2);
! 58: tmp >>= 2;
! 59: *where = (*where & 0xff000000) | (tmp & 0x00ffffff);
! 60: elf_print("R_AVR32_32_PCREL: %x -> %x\n", where, *where);
! 61: break;
! 62: default:
! 63: panic("relocation fail");
! 64: return -1;
! 65: }
! 66: return 0;
! 67: }
! 68:
! 69: int
! 70: relocate_rela(Elf32_Rela *rela, Elf32_Addr sym_val, char *target_sec)
! 71: {
! 72:
! 73: panic("Invalid relocation type");
! 74: return -1;
! 75: }
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