89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
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/* parse_pe.cc
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Copyright 1999 Cygnus Solutions.
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Written by Egor Duda <deo@logos-m.ru>
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include <bfd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "dumper.h"
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int
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exclusion::add ( LPBYTE mem_base, DWORD mem_size )
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{
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while ( last >= size ) size += step;
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region = (process_mem_region*) realloc ( region, size * sizeof ( process_mem_region ) );
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if ( region == NULL ) return 0;
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region [ last ].base = mem_base;
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region [ last ].size = mem_size;
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last++;
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return 1;
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};
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int cmp_regions ( const void* r1, const void* r2 )
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{
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if ( ((process_mem_region*) r1)->base < ((process_mem_region*) r2)->base )
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return -1;
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if ( ((process_mem_region*) r1)->base > ((process_mem_region*) r2)->base )
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return 1;
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return 0;
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}
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int
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exclusion::sort_and_check ()
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{
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qsort ( region, last, sizeof ( process_mem_region ), &cmp_regions );
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for ( process_mem_region* p = region; p < region + last - 1; p++ )
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{
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process_mem_region* q = p + 1;
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if ( p->base + size > q->base )
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{
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fprintf ( stderr, "region error @ %08x", p->base );
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return 0;
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}
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}
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return 1;
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}
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static void
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select_data_section ( bfd *abfd, asection *sect, PTR obj )
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{
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exclusion* excl_list = (exclusion*) obj;
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if ( ( sect->flags & ( SEC_CODE | SEC_DEBUGGING ) ) &&
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sect->vma && sect->_raw_size )
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{
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excl_list->add ( (LPBYTE)sect->vma, (DWORD)sect->_raw_size );
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deb_printf ( "excluding section: %20s %08lx\n", sect->name, sect->_raw_size);
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}
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}
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int
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parse_pe ( const char* file_name, exclusion* excl_list )
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{
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if ( file_name == NULL || excl_list == NULL ) return 0;
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bfd* abfd = bfd_openr ( file_name, "pei-i386" );
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if ( abfd == NULL )
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{
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bfd_perror ( "failed to open file" );
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return 0;
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}
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bfd_check_format ( abfd, bfd_object );
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bfd_map_over_sections ( abfd, &select_data_section, (PTR)excl_list );
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excl_list->sort_and_check ();
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bfd_close ( abfd );
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return 1;
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}
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