92 lines
2.0 KiB
C++
92 lines
2.0 KiB
C++
/* 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)
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size += step;
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region = (process_mem_region *) realloc (region, size * sizeof (process_mem_region));
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if (region == NULL)
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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
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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", (unsigned) 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)
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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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