1cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng/* PPC64 specific symbolic name handling. 2cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Copyright (C) 2004, 2005 Red Hat, Inc. 3cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng This file is part of Red Hat elfutils. 4cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Written by Ulrich Drepper <drepper@redhat.com>, 2004. 5cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 6cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is free software; you can redistribute it and/or modify 7cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng it under the terms of the GNU General Public License as published by the 8cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Free Software Foundation; version 2 of the License. 9cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 10cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is distributed in the hope that it will be useful, but 11cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng WITHOUT ANY WARRANTY; without even the implied warranty of 12cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng General Public License for more details. 14cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 15cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng You should have received a copy of the GNU General Public License along 16cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng with Red Hat elfutils; if not, write to the Free Software Foundation, 17cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 18cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 19cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is an included package of the Open Invention Network. 20cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng An included package of the Open Invention Network is a package for which 21cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Open Invention Network licensees cross-license their patents. No patent 22cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng license is granted, either expressly or impliedly, by designation as an 23cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng included package. Should you wish to participate in the Open Invention 24cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Network licensing program, please visit www.openinventionnetwork.com 25cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng <http://www.openinventionnetwork.com>. */ 26cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 27cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#ifdef HAVE_CONFIG_H 28cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng# include <config.h> 29cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#endif 30cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 31cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#include <assert.h> 32cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#include <elf.h> 33cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#include <stddef.h> 34cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#include <string.h> 35cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 36cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#define BACKEND ppc64_ 37cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#include "libebl_CPU.h" 38cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 39cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 40cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng/* Check for the simple reloc types. */ 41cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben ChengElf_Type 42cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengppc64_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type) 43cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng{ 44cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng switch (type) 45cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 46cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case R_PPC64_ADDR64: 47cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case R_PPC64_UADDR64: 48cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return ELF_T_XWORD; 49cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case R_PPC64_ADDR32: 50cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case R_PPC64_UADDR32: 51cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return ELF_T_WORD; 52cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case R_PPC64_UADDR16: 53cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return ELF_T_HALF; 54cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng default: 55cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return ELF_T_NUM; 56cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 57cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng} 58cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 59cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 60cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengconst char * 61cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengppc64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)), 62cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng size_t len __attribute__ ((unused))) 63cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng{ 64cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng switch (tag) 65cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 66cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case DT_PPC64_GLINK: 67cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return "PPC64_GLINK"; 68cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case DT_PPC64_OPD: 69cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return "PPC64_OPD"; 70cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case DT_PPC64_OPDSZ: 71cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return "PPC64_OPDSZ"; 72cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng default: 73cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng break; 74cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 75cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return NULL; 76cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng} 77cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 78cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 79cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengbool 80cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengppc64_dynamic_tag_check (int64_t tag) 81cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng{ 82cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return (tag == DT_PPC64_GLINK 83cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng || tag == DT_PPC64_OPD 84cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng || tag == DT_PPC64_OPDSZ); 85cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng} 86cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 87cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 88cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng/* Check whether given symbol's st_value and st_size are OK despite failing 89cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng normal checks. */ 90cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengbool 91cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengppc64_check_special_symbol (Elf *elf, GElf_Ehdr *ehdr, 92cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng const GElf_Sym *sym __attribute__ ((unused)), 93cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng const char *name __attribute__ ((unused)), 94cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng const GElf_Shdr *destshdr) 95cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng{ 96cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng const char *sname = elf_strptr (elf, ehdr->e_shstrndx, destshdr->sh_name); 97cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng if (sname == NULL) 98cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return false; 99cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return strcmp (sname, ".opd") == 0; 100cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng} 101cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 102cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 103cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng/* Check if backend uses a bss PLT in this file. */ 104cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengbool 105cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengppc64_bss_plt_p (Elf *elf __attribute__ ((unused)), 106cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng GElf_Ehdr *ehdr __attribute__ ((unused))) 107cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng{ 108cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return true; 109cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng} 110