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/*
Copyright 2018-2019 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.
*/
#include "globals.h"
#include "naming.h"
#include "esb.h"
#include "esb_using_functions.h"
#include "sanitized.h"
/* print data in .debug_str_offsets.
There is no guarantee this will work because
the DWARF5 standard is silent about
whether arbitrary non-zero bytes, or odd
alignments, or unused data spaces are allowed
in the section
*/
int
print_str_offsets_section(Dwarf_Debug dbg,Dwarf_Error *err)
{
int res = 0;
Dwarf_Str_Offsets_Table sot = 0;
Dwarf_Unsigned wasted_byte_count = 0;
Dwarf_Unsigned table_count = 0;
Dwarf_Unsigned tabnum = 0;
res = dwarf_open_str_offsets_table_access(dbg, &sot,err);
if(res == DW_DLV_NO_ENTRY) {
/* No such table */
return res;
}
if(res == DW_DLV_ERROR) {
return res;
}
for(;; ++tabnum) {
Dwarf_Unsigned unit_length =0;
Dwarf_Unsigned unit_length_offset =0;
Dwarf_Unsigned table_start_offset =0;
Dwarf_Half entry_size = 0;
Dwarf_Half version =0;
Dwarf_Half padding =0;
Dwarf_Unsigned table_value_count =0;
Dwarf_Unsigned i = 0;
Dwarf_Unsigned table_entry_value = 0;
unsigned rowlim = 4;
unsigned count_in_row = 0;
res = dwarf_next_str_offsets_table(sot,
&unit_length, &unit_length_offset,
&table_start_offset,
&entry_size,&version,&padding,
&table_value_count,err);
if (res == DW_DLV_NO_ENTRY) {
/* We have dealt with all tables */
break;
}
if (res == DW_DLV_ERROR) {
dwarf_close_str_offsets_table_access(sot,err);
return res;
}
if (tabnum == 0) {
struct esb_s truename;
char buf[DWARF_SECNAME_BUFFER_SIZE];
esb_constructor_fixed(&truename,buf,sizeof(buf));
get_true_section_name(dbg,".debug_str_offsets",
&truename,TRUE);
printf("\n%s\n",sanitized(esb_get_string(&truename)));
esb_destructor(&truename);
} else {
printf("\n");
}
printf(" table %" DW_PR_DUu "\n",tabnum);
printf(" tableheader 0x%" DW_PR_XZEROS DW_PR_DUx "\n",
unit_length_offset);
printf(" arrayoffset 0x%" DW_PR_XZEROS DW_PR_DUx "\n",
table_start_offset);
printf(" unit length 0x%" DW_PR_XZEROS DW_PR_DUx "\n",
unit_length);
printf(" entry size %u\n",entry_size);
printf(" version %u\n",version);
if (padding) {
printf("Error: padding is non-zero. Something is wrong.\n");
}
printf(" padding 0x%x\n",padding);
printf(" arraysize %" DW_PR_DUu "\n",table_value_count);
/* Lets print 4 per row. */
count_in_row = 0;
for (i=0; i < table_value_count; ++i) {
res = dwarf_str_offsets_value_by_index(sot,i,
&table_entry_value,err);
if (res != DW_DLV_OK) {
dwarf_close_str_offsets_table_access(sot,err);
return res;
}
if (!count_in_row) {
printf(" Entry [%4" DW_PR_DUu "]: ",i);
}
printf(" 0x%" DW_PR_XZEROS DW_PR_DUx ,
table_entry_value);
++count_in_row;
if( count_in_row < rowlim) {
continue;
}
printf("\n");
count_in_row = 0;
}
if (count_in_row) {
printf("\n");
}
res = dwarf_str_offsets_statistics(sot,&wasted_byte_count,
&table_count,err);
if (res == DW_DLV_OK) {
printf(" wasted %" DW_PR_DUu " bytes\n",
wasted_byte_count);
}
if (res == DW_DLV_ERROR) {
res = dwarf_close_str_offsets_table_access(sot,err);
return res;
}
}
if (wasted_byte_count) {
res = dwarf_str_offsets_statistics(sot,&wasted_byte_count,
&table_count,err);
if (res == DW_DLV_OK) {
printf(" finalwasted %" DW_PR_DUu " bytes\n",
wasted_byte_count);
} else {
res = dwarf_close_str_offsets_table_access(sot,err);
return res;
}
}
res = dwarf_close_str_offsets_table_access(sot,err);
sot = 0;
return res;
}
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