125b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* IA-64 specific symbolic name handling. 203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes Copyright (C) 2002-2009, 2014 Red Hat, Inc. 303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes This file is part of elfutils. 425b3c049e70834cf33790a28643ab058b507b35cBen Cheng Written by Ulrich Drepper <drepper@redhat.com>, 2002. 525b3c049e70834cf33790a28643ab058b507b35cBen Cheng 603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes This file is free software; you can redistribute it and/or modify 703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes it under the terms of either 825b3c049e70834cf33790a28643ab058b507b35cBen Cheng 903333823c75a1c1887e923828113a1b0fd12020cElliott Hughes * the GNU Lesser General Public License as published by the Free 1003333823c75a1c1887e923828113a1b0fd12020cElliott Hughes Software Foundation; either version 3 of the License, or (at 1103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes your option) any later version 1203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 1303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes or 1403333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 1503333823c75a1c1887e923828113a1b0fd12020cElliott Hughes * the GNU General Public License as published by the Free 1603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes Software Foundation; either version 2 of the License, or (at 1703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes your option) any later version 1803333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 1903333823c75a1c1887e923828113a1b0fd12020cElliott Hughes or both in parallel, as here. 2003333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 2103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes elfutils is distributed in the hope that it will be useful, but 2225b3c049e70834cf33790a28643ab058b507b35cBen Cheng WITHOUT ANY WARRANTY; without even the implied warranty of 2325b3c049e70834cf33790a28643ab058b507b35cBen Cheng MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 2425b3c049e70834cf33790a28643ab058b507b35cBen Cheng General Public License for more details. 2525b3c049e70834cf33790a28643ab058b507b35cBen Cheng 2603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes You should have received copies of the GNU General Public License and 2703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes the GNU Lesser General Public License along with this program. If 2803333823c75a1c1887e923828113a1b0fd12020cElliott Hughes not, see <http://www.gnu.org/licenses/>. */ 2925b3c049e70834cf33790a28643ab058b507b35cBen Cheng 3025b3c049e70834cf33790a28643ab058b507b35cBen Cheng#ifdef HAVE_CONFIG_H 3125b3c049e70834cf33790a28643ab058b507b35cBen Cheng# include <config.h> 3225b3c049e70834cf33790a28643ab058b507b35cBen Cheng#endif 3325b3c049e70834cf33790a28643ab058b507b35cBen Cheng 3425b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <elf.h> 3525b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <stddef.h> 3625b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <assert.h> 3725b3c049e70834cf33790a28643ab058b507b35cBen Cheng 3825b3c049e70834cf33790a28643ab058b507b35cBen Cheng#define BACKEND ia64_ 3925b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include "libebl_CPU.h" 4025b3c049e70834cf33790a28643ab058b507b35cBen Cheng 4125b3c049e70834cf33790a28643ab058b507b35cBen Cheng 4225b3c049e70834cf33790a28643ab058b507b35cBen Chengconst char * 4325b3c049e70834cf33790a28643ab058b507b35cBen Chengia64_segment_type_name (int segment, char *buf __attribute__ ((unused)), 4425b3c049e70834cf33790a28643ab058b507b35cBen Cheng size_t len __attribute__ ((unused))) 4525b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 4625b3c049e70834cf33790a28643ab058b507b35cBen Cheng switch (segment) 4725b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 4825b3c049e70834cf33790a28643ab058b507b35cBen Cheng case PT_IA_64_ARCHEXT: 4925b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_ARCHEXT"; 5025b3c049e70834cf33790a28643ab058b507b35cBen Cheng case PT_IA_64_UNWIND: 5125b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_UNWIND"; 5225b3c049e70834cf33790a28643ab058b507b35cBen Cheng case PT_IA_64_HP_OPT_ANOT: 5325b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_HP_OPT_ANOT"; 5425b3c049e70834cf33790a28643ab058b507b35cBen Cheng case PT_IA_64_HP_HSL_ANOT: 5525b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_HP_HSL_ANOT"; 5625b3c049e70834cf33790a28643ab058b507b35cBen Cheng case PT_IA_64_HP_STACK: 5725b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_HP_STACK"; 5825b3c049e70834cf33790a28643ab058b507b35cBen Cheng default: 5925b3c049e70834cf33790a28643ab058b507b35cBen Cheng break; 6025b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 6125b3c049e70834cf33790a28643ab058b507b35cBen Cheng return NULL; 6225b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 6325b3c049e70834cf33790a28643ab058b507b35cBen Cheng 6425b3c049e70834cf33790a28643ab058b507b35cBen Chengconst char * 6525b3c049e70834cf33790a28643ab058b507b35cBen Chengia64_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)), 6625b3c049e70834cf33790a28643ab058b507b35cBen Cheng size_t len __attribute__ ((unused))) 6725b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 6825b3c049e70834cf33790a28643ab058b507b35cBen Cheng switch (tag) 6925b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 7025b3c049e70834cf33790a28643ab058b507b35cBen Cheng case DT_IA_64_PLT_RESERVE: 7125b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_PLT_RESERVE"; 7225b3c049e70834cf33790a28643ab058b507b35cBen Cheng default: 7325b3c049e70834cf33790a28643ab058b507b35cBen Cheng break; 7425b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 7525b3c049e70834cf33790a28643ab058b507b35cBen Cheng return NULL; 7625b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 7725b3c049e70834cf33790a28643ab058b507b35cBen Cheng 7825b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Check dynamic tag. */ 7925b3c049e70834cf33790a28643ab058b507b35cBen Chengbool 8025b3c049e70834cf33790a28643ab058b507b35cBen Chengia64_dynamic_tag_check (int64_t tag) 8125b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 8225b3c049e70834cf33790a28643ab058b507b35cBen Cheng return tag == DT_IA_64_PLT_RESERVE; 8325b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 8425b3c049e70834cf33790a28643ab058b507b35cBen Cheng 8525b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Check whether machine flags are valid. */ 8625b3c049e70834cf33790a28643ab058b507b35cBen Chengbool 8725b3c049e70834cf33790a28643ab058b507b35cBen Chengia64_machine_flag_check (GElf_Word flags) 8825b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 8925b3c049e70834cf33790a28643ab058b507b35cBen Cheng return ((flags &~ EF_IA_64_ABI64) == 0); 9025b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 9125b3c049e70834cf33790a28643ab058b507b35cBen Cheng 9225b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Check whether SHF_MASKPROC flags are valid. */ 9325b3c049e70834cf33790a28643ab058b507b35cBen Chengbool 9425b3c049e70834cf33790a28643ab058b507b35cBen Chengia64_machine_section_flag_check (GElf_Xword sh_flags) 9525b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 9625b3c049e70834cf33790a28643ab058b507b35cBen Cheng return (sh_flags &~ (SHF_IA_64_SHORT | SHF_IA_64_NORECOV)) == 0; 9725b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 9825b3c049e70834cf33790a28643ab058b507b35cBen Cheng 9925b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Return symbolic representation of section type. */ 10025b3c049e70834cf33790a28643ab058b507b35cBen Chengconst char * 10125b3c049e70834cf33790a28643ab058b507b35cBen Chengia64_section_type_name (int type, 10225b3c049e70834cf33790a28643ab058b507b35cBen Cheng char *buf __attribute__ ((unused)), 10325b3c049e70834cf33790a28643ab058b507b35cBen Cheng size_t len __attribute__ ((unused))) 10425b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 10525b3c049e70834cf33790a28643ab058b507b35cBen Cheng switch (type) 10625b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 10725b3c049e70834cf33790a28643ab058b507b35cBen Cheng case SHT_IA_64_EXT: 10825b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_EXT"; 10925b3c049e70834cf33790a28643ab058b507b35cBen Cheng case SHT_IA_64_UNWIND: 11025b3c049e70834cf33790a28643ab058b507b35cBen Cheng return "IA_64_UNWIND"; 11125b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 11225b3c049e70834cf33790a28643ab058b507b35cBen Cheng 11325b3c049e70834cf33790a28643ab058b507b35cBen Cheng return NULL; 11425b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 11525b3c049e70834cf33790a28643ab058b507b35cBen Cheng 11625b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Check for the simple reloc types. */ 11725b3c049e70834cf33790a28643ab058b507b35cBen ChengElf_Type 11825b3c049e70834cf33790a28643ab058b507b35cBen Chengia64_reloc_simple_type (Ebl *ebl, int type) 11925b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 12025b3c049e70834cf33790a28643ab058b507b35cBen Cheng switch (type) 12125b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 12225b3c049e70834cf33790a28643ab058b507b35cBen Cheng /* The SECREL types when used with non-allocated sections 12325b3c049e70834cf33790a28643ab058b507b35cBen Cheng like .debug_* are the same as direct absolute relocs 12425b3c049e70834cf33790a28643ab058b507b35cBen Cheng applied to those sections, since a 0 section address is assumed. 12525b3c049e70834cf33790a28643ab058b507b35cBen Cheng So we treat them the same here. */ 12625b3c049e70834cf33790a28643ab058b507b35cBen Cheng 12725b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_SECREL32MSB: 12825b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_DIR32MSB: 12925b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (ebl->data == ELFDATA2MSB) 13025b3c049e70834cf33790a28643ab058b507b35cBen Cheng return ELF_T_WORD; 13125b3c049e70834cf33790a28643ab058b507b35cBen Cheng break; 13225b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_SECREL32LSB: 13325b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_DIR32LSB: 13425b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (ebl->data == ELFDATA2LSB) 13525b3c049e70834cf33790a28643ab058b507b35cBen Cheng return ELF_T_WORD; 13625b3c049e70834cf33790a28643ab058b507b35cBen Cheng break; 13725b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_DIR64MSB: 13825b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_SECREL64MSB: 13925b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (ebl->data == ELFDATA2MSB) 14025b3c049e70834cf33790a28643ab058b507b35cBen Cheng return ELF_T_XWORD; 14125b3c049e70834cf33790a28643ab058b507b35cBen Cheng break; 14225b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_SECREL64LSB: 14325b3c049e70834cf33790a28643ab058b507b35cBen Cheng case R_IA64_DIR64LSB: 14425b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (ebl->data == ELFDATA2LSB) 14525b3c049e70834cf33790a28643ab058b507b35cBen Cheng return ELF_T_XWORD; 14625b3c049e70834cf33790a28643ab058b507b35cBen Cheng break; 14725b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 14825b3c049e70834cf33790a28643ab058b507b35cBen Cheng 14925b3c049e70834cf33790a28643ab058b507b35cBen Cheng return ELF_T_NUM; 15025b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 15103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 15203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes/* The SHT_IA_64_UNWIND section type is a valid target for relocation. */ 15303333823c75a1c1887e923828113a1b0fd12020cElliott Hughesbool 15403333823c75a1c1887e923828113a1b0fd12020cElliott Hughesia64_check_reloc_target_type (Ebl *ebl __attribute__ ((unused)), Elf64_Word sh_type) 15503333823c75a1c1887e923828113a1b0fd12020cElliott Hughes{ 15603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes return sh_type == SHT_IA_64_UNWIND; 15703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes} 158