125b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Add string to a section. 225b3c049e70834cf33790a28643ab058b507b35cBen Cheng Copyright (C) 2002 Red Hat, Inc. 325b3c049e70834cf33790a28643ab058b507b35cBen Cheng This file is part of Red Hat elfutils. 425b3c049e70834cf33790a28643ab058b507b35cBen Cheng Written by Ulrich Drepper <drepper@redhat.com>, 2002. 525b3c049e70834cf33790a28643ab058b507b35cBen Cheng 625b3c049e70834cf33790a28643ab058b507b35cBen Cheng Red Hat elfutils is free software; you can redistribute it and/or modify 725b3c049e70834cf33790a28643ab058b507b35cBen Cheng it under the terms of the GNU General Public License as published by the 825b3c049e70834cf33790a28643ab058b507b35cBen Cheng Free Software Foundation; version 2 of the License. 925b3c049e70834cf33790a28643ab058b507b35cBen Cheng 1025b3c049e70834cf33790a28643ab058b507b35cBen Cheng Red Hat elfutils is distributed in the hope that it will be useful, but 1125b3c049e70834cf33790a28643ab058b507b35cBen Cheng WITHOUT ANY WARRANTY; without even the implied warranty of 1225b3c049e70834cf33790a28643ab058b507b35cBen Cheng MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1325b3c049e70834cf33790a28643ab058b507b35cBen Cheng General Public License for more details. 1425b3c049e70834cf33790a28643ab058b507b35cBen Cheng 1525b3c049e70834cf33790a28643ab058b507b35cBen Cheng You should have received a copy of the GNU General Public License along 1625b3c049e70834cf33790a28643ab058b507b35cBen Cheng with Red Hat elfutils; if not, write to the Free Software Foundation, 1725b3c049e70834cf33790a28643ab058b507b35cBen Cheng Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 1825b3c049e70834cf33790a28643ab058b507b35cBen Cheng 1925b3c049e70834cf33790a28643ab058b507b35cBen Cheng Red Hat elfutils is an included package of the Open Invention Network. 2025b3c049e70834cf33790a28643ab058b507b35cBen Cheng An included package of the Open Invention Network is a package for which 2125b3c049e70834cf33790a28643ab058b507b35cBen Cheng Open Invention Network licensees cross-license their patents. No patent 2225b3c049e70834cf33790a28643ab058b507b35cBen Cheng license is granted, either expressly or impliedly, by designation as an 2325b3c049e70834cf33790a28643ab058b507b35cBen Cheng included package. Should you wish to participate in the Open Invention 2425b3c049e70834cf33790a28643ab058b507b35cBen Cheng Network licensing program, please visit www.openinventionnetwork.com 2525b3c049e70834cf33790a28643ab058b507b35cBen Cheng <http://www.openinventionnetwork.com>. */ 2625b3c049e70834cf33790a28643ab058b507b35cBen Cheng 2725b3c049e70834cf33790a28643ab058b507b35cBen Cheng#ifdef HAVE_CONFIG_H 2825b3c049e70834cf33790a28643ab058b507b35cBen Cheng# include <config.h> 2925b3c049e70834cf33790a28643ab058b507b35cBen Cheng#endif 3025b3c049e70834cf33790a28643ab058b507b35cBen Cheng 3125b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <ctype.h> 3225b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <stdio.h> 3325b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <string.h> 3425b3c049e70834cf33790a28643ab058b507b35cBen Cheng 3525b3c049e70834cf33790a28643ab058b507b35cBen Cheng#include <libasmP.h> 3625b3c049e70834cf33790a28643ab058b507b35cBen Cheng 3725b3c049e70834cf33790a28643ab058b507b35cBen Cheng 3825b3c049e70834cf33790a28643ab058b507b35cBen Cheng/* Add zero terminated string STR of size LEN to (sub)section ASMSCN. */ 3925b3c049e70834cf33790a28643ab058b507b35cBen Chengint 4025b3c049e70834cf33790a28643ab058b507b35cBen Chengasm_addstrz (asmscn, str, len) 4125b3c049e70834cf33790a28643ab058b507b35cBen Cheng AsmScn_t *asmscn; 4225b3c049e70834cf33790a28643ab058b507b35cBen Cheng const char *str; 4325b3c049e70834cf33790a28643ab058b507b35cBen Cheng size_t len; 4425b3c049e70834cf33790a28643ab058b507b35cBen Cheng{ 4525b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (asmscn == NULL) 4625b3c049e70834cf33790a28643ab058b507b35cBen Cheng return -1; 4725b3c049e70834cf33790a28643ab058b507b35cBen Cheng 4825b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (unlikely (asmscn->type == SHT_NOBITS)) 4925b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 5025b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (len == 0) 5125b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 5225b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (str[0] != '\0') 5325b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 5425b3c049e70834cf33790a28643ab058b507b35cBen Cheng __libasm_seterrno (ASM_E_TYPE); 5525b3c049e70834cf33790a28643ab058b507b35cBen Cheng return -1; 5625b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 5725b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 5825b3c049e70834cf33790a28643ab058b507b35cBen Cheng else 5925b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 6025b3c049e70834cf33790a28643ab058b507b35cBen Cheng size_t cnt; 6125b3c049e70834cf33790a28643ab058b507b35cBen Cheng 6225b3c049e70834cf33790a28643ab058b507b35cBen Cheng for (cnt = 0; cnt < len; ++cnt) 6325b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (str[cnt] != '\0') 6425b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 6525b3c049e70834cf33790a28643ab058b507b35cBen Cheng __libasm_seterrno (ASM_E_TYPE); 6625b3c049e70834cf33790a28643ab058b507b35cBen Cheng return -1; 6725b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 6825b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 6925b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 7025b3c049e70834cf33790a28643ab058b507b35cBen Cheng 7125b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (len == 0) 7225b3c049e70834cf33790a28643ab058b507b35cBen Cheng len = strlen (str) + 1; 7325b3c049e70834cf33790a28643ab058b507b35cBen Cheng 7425b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (unlikely (asmscn->ctx->textp)) 7525b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 7625b3c049e70834cf33790a28643ab058b507b35cBen Cheng bool nextline = true; 7725b3c049e70834cf33790a28643ab058b507b35cBen Cheng 7825b3c049e70834cf33790a28643ab058b507b35cBen Cheng do 7925b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 8025b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (nextline) 8125b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 8225b3c049e70834cf33790a28643ab058b507b35cBen Cheng fputs ("\t.string\t\"", asmscn->ctx->out.file); 8325b3c049e70834cf33790a28643ab058b507b35cBen Cheng nextline = false; 8425b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 8525b3c049e70834cf33790a28643ab058b507b35cBen Cheng 8625b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (*str == '\0') 8725b3c049e70834cf33790a28643ab058b507b35cBen Cheng fputs ("\\000", asmscn->ctx->out.file); 8825b3c049e70834cf33790a28643ab058b507b35cBen Cheng else if (! isascii (*str)) 8925b3c049e70834cf33790a28643ab058b507b35cBen Cheng fprintf (asmscn->ctx->out.file, "\\%03o", 9025b3c049e70834cf33790a28643ab058b507b35cBen Cheng (unsigned int) *((unsigned char *)str)); 9125b3c049e70834cf33790a28643ab058b507b35cBen Cheng else if (*str == '\\') 9225b3c049e70834cf33790a28643ab058b507b35cBen Cheng fputs ("\\\\", asmscn->ctx->out.file); 9325b3c049e70834cf33790a28643ab058b507b35cBen Cheng else if (*str == '\n') 9425b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 9525b3c049e70834cf33790a28643ab058b507b35cBen Cheng fputs ("\\n\"", asmscn->ctx->out.file); 9625b3c049e70834cf33790a28643ab058b507b35cBen Cheng nextline = true; 9725b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 9825b3c049e70834cf33790a28643ab058b507b35cBen Cheng else 9925b3c049e70834cf33790a28643ab058b507b35cBen Cheng fputc (*str, asmscn->ctx->out.file); 10025b3c049e70834cf33790a28643ab058b507b35cBen Cheng 10125b3c049e70834cf33790a28643ab058b507b35cBen Cheng ++str; 10225b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 10325b3c049e70834cf33790a28643ab058b507b35cBen Cheng while (--len > 0 && (len > 1 || *str != '\0')); 10425b3c049e70834cf33790a28643ab058b507b35cBen Cheng 10525b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (! nextline) 10625b3c049e70834cf33790a28643ab058b507b35cBen Cheng fputs ("\"\n", asmscn->ctx->out.file); 10725b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 10825b3c049e70834cf33790a28643ab058b507b35cBen Cheng else 10925b3c049e70834cf33790a28643ab058b507b35cBen Cheng { 11025b3c049e70834cf33790a28643ab058b507b35cBen Cheng /* Make sure there is enough room. */ 11125b3c049e70834cf33790a28643ab058b507b35cBen Cheng if (__libasm_ensure_section_space (asmscn, len) != 0) 11225b3c049e70834cf33790a28643ab058b507b35cBen Cheng return -1; 11325b3c049e70834cf33790a28643ab058b507b35cBen Cheng 11425b3c049e70834cf33790a28643ab058b507b35cBen Cheng /* Copy the string. */ 11525b3c049e70834cf33790a28643ab058b507b35cBen Cheng memcpy (&asmscn->content->data[asmscn->content->len], str, len); 11625b3c049e70834cf33790a28643ab058b507b35cBen Cheng 11725b3c049e70834cf33790a28643ab058b507b35cBen Cheng /* Adjust the pointer in the data buffer. */ 11825b3c049e70834cf33790a28643ab058b507b35cBen Cheng asmscn->content->len += len; 11925b3c049e70834cf33790a28643ab058b507b35cBen Cheng 12025b3c049e70834cf33790a28643ab058b507b35cBen Cheng /* Increment the offset in the (sub)section. */ 12125b3c049e70834cf33790a28643ab058b507b35cBen Cheng asmscn->offset += len; 12225b3c049e70834cf33790a28643ab058b507b35cBen Cheng } 12325b3c049e70834cf33790a28643ab058b507b35cBen Cheng 12425b3c049e70834cf33790a28643ab058b507b35cBen Cheng return 0; 12525b3c049e70834cf33790a28643ab058b507b35cBen Cheng} 126