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Diffstat (limited to 'dwarfdump2/print_locs.cc')
| -rw-r--r-- | dwarfdump2/print_locs.cc | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/dwarfdump2/print_locs.cc b/dwarfdump2/print_locs.cc new file mode 100644 index 0000000..b4c5edc --- /dev/null +++ b/dwarfdump2/print_locs.cc @@ -0,0 +1,131 @@ +/* + Copyright (C) 2000-2006 Silicon Graphics, Inc. All Rights Reserved. + Portions Copyright 2007-2010 Sun Microsystems, Inc. All rights reserved. + Portions Copyright 2009-2010 SN Systems Ltd. All rights reserved. + Portions Copyright 2008-2010 David Anderson. All rights reserved. + + This program is free software; you can redistribute it and/or modify it + under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation. + + This program is distributed in the hope that it would be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + + Further, this software is distributed without any warranty that it is + free of the rightful claim of any third person regarding infringement + or the like. Any license provided herein, whether implied or + otherwise, applies only to this software file. Patent licenses, if + any, provided herein do not apply to combinations of this program with + other software, or any other product whatsoever. + + You should have received a copy of the GNU General Public License along + with this program; if not, write the Free Software Foundation, Inc., 51 + Franklin Street - Fifth Floor, Boston MA 02110-1301, USA. + + Contact information: Silicon Graphics, Inc., 1500 Crittenden Lane, + Mountain View, CA 94043, or: + + http://www.sgi.com + + For further information regarding this notice, see: + + http://oss.sgi.com/projects/GenInfo/NoticeExplan + + + +$Header: /plroot/cmplrs.src/v7.4.5m/.RCS/PL/dwarfdump/RCS/print_sections.c,v 1.69 2006/04/17 00:09:56 davea Exp $ */ +/* The address of the Free Software Foundation is + Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, + Boston, MA 02110-1301, USA. + SGI has moved from the Crittenden Lane address. +*/ + +#include "globals.h" +#include <vector> +#include "naming.h" +#include "dwconf.h" + +#include "print_frames.h" + +using std::string; +using std::cout; +using std::cerr; +using std::endl; + +/* print data in .debug_loc + There is no guarantee this will work because we are assuming + that all bytes are valid loclist data, that there are no + odd padding or garbage bytes. In normal use one gets + into here via an offset from .debug_info, so it could be + that bytes not referenced from .debug_info are garbage + or even zero padding. So this can fail (error off) as such bytes + can lead dwarf_get_loclist_entry() astray. + + It is also broken because we do not know what CU is involved + so if address_size varies by CU we cannot know that here. +*/ + +void +print_locs(Dwarf_Debug dbg) +{ + Dwarf_Unsigned offset = 0; + Dwarf_Addr hipc_offset = 0; + Dwarf_Addr lopc_offset = 0; + Dwarf_Ptr data = 0; + Dwarf_Unsigned entry_len = 0; + Dwarf_Unsigned next_entry = 0; + int index = 0; + int lres = 0; + Dwarf_Half address_size = 0; + + error_message_data.current_section_id = DEBUG_LOC; + if(!do_print_dwarf) { + return; + } + + /* This is sometimes wrong, we need a frame-specific size. */ + int fres = dwarf_get_address_size(dbg, &address_size, &err); + if (fres != DW_DLV_OK) { + print_error(dbg, "dwarf_get_address_size", fres, err); + } + + + cout << endl; + cout << ".debug_loc" << endl; + cout <<"Format <i o b e l>: " + "index section-offset begin-addr end-addr length-of-block-entry"; + cout << endl; + while ((lres = dwarf_get_loclist_entry(dbg, offset, + &hipc_offset, &lopc_offset, + &data, &entry_len, + &next_entry, + &err)) == DW_DLV_OK) { + + string exprstring; + get_string_from_locs(dbg,data,entry_len,address_size,exprstring); + if( display_offsets) { + ++index; + cout <<" <iobel> [" << IToDec(index,8); + cout <<"] " << IToHex0N(offset,10); + // We print this offset so it matches what the debug_info + // loclist offset shows (so we can relate them). + // This offset is the offset of the expression byte blob. + if(verbose) { + cout << string(" ") << + BracketSurround(string("expr-off ") + + IToHex0N(next_entry - entry_len,10)); + } + } + cout <<" "<< IToHex0N(lopc_offset,10); + cout <<" "<< IToHex0N(hipc_offset,10); + cout <<" "<< IToDec(entry_len,8); + cout <<" "<< exprstring; + cout << endl; + offset = next_entry; + } + if (lres == DW_DLV_ERROR) { + print_error(dbg, "dwarf_get_loclist_entry", lres, err); + } +} + |