1 /* Copyright (C) 2002-2012 Red Hat, Inc. 2 This file is part of elfutils. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2002. 4 5 This file is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 elfutils is distributed in the hope that it will be useful, but 11 WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 #ifdef HAVE_CONFIG_H 19 # include <config.h> 20 #endif 21 22 #include ELFUTILS_HEADER(asm) 23 #include <libelf.h> 24 #include <stdio.h> 25 #include <stdlib.h> 26 #include <unistd.h> 27 #include <sys/wait.h> 28 29 #include <system.h> 30 31 32 static const char fname[] = "asm-tst6-out.o"; 33 34 35 int 36 main (void) 37 { 38 AsmCtx_t *ctx; 39 int result = 0; 40 size_t cnt; 41 42 elf_version (EV_CURRENT); 43 44 Ebl *ebl = ebl_openbackend_machine (EM_386); 45 if (ebl == NULL) 46 { 47 puts ("cannot open backend library"); 48 return 1; 49 } 50 51 ctx = asm_begin (fname, ebl, false); 52 if (ctx == NULL) 53 { 54 printf ("cannot create assembler context: %s\n", asm_errmsg (-1)); 55 return 1; 56 } 57 58 for (cnt = 0; cnt < 22000; ++cnt) 59 { 60 char buf[512]; 61 AsmScnGrp_t *grp; 62 AsmScn_t *scn; 63 AsmSym_t *sym; 64 65 snprintf (buf, sizeof (buf), ".grp%zu", cnt); 66 grp = asm_newscngrp (ctx, buf, NULL, 0); 67 if (grp == NULL) 68 { 69 printf ("cannot section group %zu: %s\n", cnt, asm_errmsg (-1)); 70 asm_abort (ctx); 71 return 1; 72 } 73 74 scn = asm_newscn_ingrp (ctx, ".data", SHT_PROGBITS, 75 SHF_ALLOC | SHF_WRITE, grp); 76 if (scn == NULL) 77 { 78 printf ("cannot data section for group %zu: %s\n", 79 cnt, asm_errmsg (-1)); 80 asm_abort (ctx); 81 return 1; 82 } 83 84 /* Add a name. */ 85 snprintf (buf, sizeof (buf), "%zu", cnt); 86 sym = asm_newsym (scn, buf, sizeof (uint32_t), STT_OBJECT, 87 STB_GLOBAL); 88 if (sym == NULL) 89 { 90 printf ("cannot create symbol \"%s\": %s\n", buf, asm_errmsg (-1)); 91 asm_abort (ctx); 92 return 1; 93 } 94 95 /* Add some content. */ 96 if (asm_adduint32 (scn, cnt) != 0) 97 { 98 printf ("cannot create content of section \"%s\": %s\n", 99 buf, asm_errmsg (-1)); 100 asm_abort (ctx); 101 return 1; 102 } 103 104 /* Now we have a symbol, use it as the signature. */ 105 if (asm_scngrp_newsignature (grp, sym) != 0) 106 { 107 printf ("cannot set signature for section group %zu: %s\n", 108 cnt, asm_errmsg (-1)); 109 asm_abort (ctx); 110 return 1; 111 } 112 113 /* Create a phony debug info section. */ 114 scn = asm_newscn_ingrp (ctx, ".stab", SHT_PROGBITS, 0, grp); 115 if (scn == NULL) 116 { 117 printf ("cannot stab section for group %zu: %s\n", 118 cnt, asm_errmsg (-1)); 119 asm_abort (ctx); 120 return 1; 121 } 122 123 /* Add some content. */ 124 if (asm_adduint32 (scn, cnt) != 0) 125 { 126 printf ("cannot create content of section \"%s\": %s\n", 127 buf, asm_errmsg (-1)); 128 asm_abort (ctx); 129 return 1; 130 } 131 } 132 133 /* Create the output file. */ 134 if (asm_end (ctx) != 0) 135 { 136 printf ("cannot create output file: %s\n", asm_errmsg (-1)); 137 asm_abort (ctx); 138 return 1; 139 } 140 141 if (result == 0) 142 result = WEXITSTATUS (system ("../src/elflint -q asm-tst6-out.o")); 143 144 /* We don't need the file anymore. */ 145 unlink (fname); 146 147 ebl_closebackend (ebl); 148 149 return result; 150 } 151
