1cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng/* Copyright (C) 2002, 2005 Red Hat, Inc. 2cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng This file is part of Red Hat elfutils. 3441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Written by Ulrich Drepper <drepper@redhat.com>, 2002. 4441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 5cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is free software; you can redistribute it and/or modify 6cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng it under the terms of the GNU General Public License as published by the 7cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Free Software Foundation; version 2 of the License. 8441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 9cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is distributed in the hope that it will be useful, but 10cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng WITHOUT ANY WARRANTY; without even the implied warranty of 11cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng General Public License for more details. 13cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 14cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng You should have received a copy of the GNU General Public License along 15cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng with Red Hat elfutils; if not, write to the Free Software Foundation, 16cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 17cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 18cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is an included package of the Open Invention Network. 19cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng An included package of the Open Invention Network is a package for which 20cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Open Invention Network licensees cross-license their patents. No patent 21cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng license is granted, either expressly or impliedly, by designation as an 22cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng included package. Should you wish to participate in the Open Invention 23cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Network licensing program, please visit www.openinventionnetwork.com 24cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng <http://www.openinventionnetwork.com>. */ 25cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 26cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#ifdef HAVE_CONFIG_H 27cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng# include <config.h> 28cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#endif 29441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 30441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <fcntl.h> 31441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <inttypes.h> 32cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#include ELFUTILS_HEADER(asm) 33441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <libelf.h> 34441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <stdio.h> 35441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <unistd.h> 36441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 37441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 38441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic const char fname[] = "asm-tst8-out.o"; 39441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 40441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 41441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectint 42441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectmain (void) 43441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 44441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project int result = 0; 45441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project size_t cnt; 46441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project AsmCtx_t *ctx; 47441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf *elf; 48441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project int fd; 49441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 50441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project elf_version (EV_CURRENT); 51441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 52cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Ebl *ebl = ebl_openbackend_machine (EM_386); 53cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng if (ebl == NULL) 54cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng { 55cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng puts ("cannot open backend library"); 56cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return 1; 57cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } 58cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 59cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng ctx = asm_begin (fname, ebl, false); 60441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (ctx == NULL) 61441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 62441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); 63441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return 1; 64441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 65441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 66441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (asm_newabssym (ctx, "tst8-out.s", 4, 0xfeedbeef, STT_FILE, STB_LOCAL) 67441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project == NULL) 68441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 69441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot create absolute symbol: %s\n", asm_errmsg (-1)); 70441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project asm_abort (ctx); 71441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return 1; 72441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 73441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 74441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Create the output file. */ 75441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (asm_end (ctx) != 0) 76441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 77441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot create output file: %s\n", asm_errmsg (-1)); 78441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project asm_abort (ctx); 79441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return 1; 80441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 81441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 82441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* Check the file. */ 83441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project fd = open (fname, O_RDONLY); 84441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (fd == -1) 85441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 86441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot open generated file: %m\n"); 87441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 88441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project goto out; 89441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 90441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 91441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project elf = elf_begin (fd, ELF_C_READ, NULL); 92441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (elf == NULL) 93441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 94441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot create ELF descriptor: %s\n", elf_errmsg (-1)); 95441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 96441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project goto out_close; 97441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 98441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (elf_kind (elf) != ELF_K_ELF) 99441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 100441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project puts ("not a valid ELF file"); 101441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 102441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project goto out_close2; 103441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 104441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 105441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project for (cnt = 1; 1; ++cnt) 106441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 107441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Elf_Scn *scn; 108441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Shdr shdr_mem; 109441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Shdr *shdr; 110441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 111441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project scn = elf_getscn (elf, cnt); 112441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (scn == NULL) 113441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 114441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot get section %Zd: %s\n", cnt, elf_errmsg (-1)); 115441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 116441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project continue; 117441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 118441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 119441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project shdr = gelf_getshdr (scn, &shdr_mem); 120441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (shdr == NULL) 121441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 122441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot get section header for section %Zd: %s\n", 123441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project cnt, elf_errmsg (-1)); 124441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 125441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project continue; 126441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 127441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* We are looking for the symbol table. */ 128441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (shdr->sh_type != SHT_SYMTAB) 129441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project continue; 130441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 131441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project for (cnt = 1; cnt< (shdr->sh_size 132441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project / gelf_fsize (elf, ELF_T_SYM, 1, EV_CURRENT)); 133441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ++cnt) 134441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 135441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Sym sym_mem; 136441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project GElf_Sym *sym; 137441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 138441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (cnt > 1) 139441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 140441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project puts ("too many symbol"); 141441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 142441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project break; 143441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 144441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 145441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project sym = gelf_getsym (elf_getdata (scn, NULL), cnt, &sym_mem); 146441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (sym == NULL) 147441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 148441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("cannot get symbol %zu: %s\n", cnt, elf_errmsg (-1)); 149441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 150441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 151441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project else 152441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 153441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (sym->st_shndx != SHN_ABS) 154441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 155441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("expected common symbol, got section %u\n", 156441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unsigned int) sym->st_shndx); 157441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 158441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 159441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 160441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (sym->st_value != 0xfeedbeef) 161441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 162441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("requested value 0xfeedbeef, is %#" PRIxMAX "\n", 163441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (uintmax_t) sym->st_value); 164441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 165441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 166441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 167441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (sym->st_size != 4) 168441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 169441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("requested size 4, is %" PRIuMAX "\n", 170441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (uintmax_t) sym->st_value); 171441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 172441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 173441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 174441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (GELF_ST_TYPE (sym->st_info) != STT_FILE) 175441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 176441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project printf ("requested type FILE, is %u\n", 177441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unsigned int) GELF_ST_TYPE (sym->st_info)); 178441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project result = 1; 179441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 180441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 181441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 182441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 183441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project break; 184441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } 185441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 186441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project out_close2: 187441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project elf_end (elf); 188441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project out_close: 189441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project close (fd); 190441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project out: 191441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project /* We don't need the file anymore. */ 192441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project unlink (fname); 193441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 194cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng ebl_closebackend (ebl); 195cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 196441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return result; 197441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 198