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0ad10c0f CF |
1 | /* parse_pe.cc |
2 | ||
61522196 | 3 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2012, 2013 Red Hat, Inc. |
0ad10c0f CF |
4 | |
5 | Written by Egor Duda <deo@logos-m.ru> | |
6 | ||
eedc36cb | 7 | This file is part of Cygwin. |
0ad10c0f | 8 | |
dd67e696 CV |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License (file COPYING.dumper) for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ | |
0ad10c0f | 22 | |
4c36016b | 23 | #define PACKAGE |
0ad10c0f CF |
24 | #include <bfd.h> |
25 | #include <stdio.h> | |
26 | #include <stdlib.h> | |
27 | ||
28 | #include "dumper.h" | |
29 | ||
30 | int | |
61522196 | 31 | exclusion::add (LPBYTE mem_base, SIZE_T mem_size) |
0ad10c0f | 32 | { |
eedc36cb CF |
33 | while (last >= size) |
34 | size += step; | |
35 | region = (process_mem_region *) realloc (region, size * sizeof (process_mem_region)); | |
36 | if (region == NULL) | |
37 | return 0; | |
38 | region[last].base = mem_base; | |
39 | region[last].size = mem_size; | |
0ad10c0f CF |
40 | last++; |
41 | return 1; | |
42 | }; | |
43 | ||
4bfc614b | 44 | int |
eedc36cb | 45 | cmp_regions (const void *r1, const void *r2) |
0ad10c0f | 46 | { |
eedc36cb | 47 | if (((process_mem_region *) r1)->base < ((process_mem_region *) r2)->base) |
0ad10c0f | 48 | return -1; |
eedc36cb | 49 | if (((process_mem_region *) r1)->base > ((process_mem_region *) r2)->base) |
0ad10c0f CF |
50 | return 1; |
51 | return 0; | |
52 | } | |
53 | ||
54 | int | |
55 | exclusion::sort_and_check () | |
56 | { | |
eedc36cb CF |
57 | qsort (region, last, sizeof (process_mem_region), &cmp_regions); |
58 | for (process_mem_region * p = region; p < region + last - 1; p++) | |
0ad10c0f | 59 | { |
eedc36cb | 60 | process_mem_region *q = p + 1; |
b1e00863 CF |
61 | if (q == p + 1) |
62 | continue; | |
eedc36cb CF |
63 | if (p->base + size > q->base) |
64 | { | |
61522196 | 65 | fprintf (stderr, "region error @ (%p + %zd) > %p\n", p->base, size, q->base); |
eedc36cb CF |
66 | return 0; |
67 | } | |
0ad10c0f CF |
68 | } |
69 | return 1; | |
70 | } | |
71 | ||
72 | static void | |
eedc36cb | 73 | select_data_section (bfd * abfd, asection * sect, PTR obj) |
0ad10c0f | 74 | { |
eedc36cb | 75 | exclusion *excl_list = (exclusion *) obj; |
0ad10c0f | 76 | |
eedc36cb | 77 | if ((sect->flags & (SEC_CODE | SEC_DEBUGGING)) && |
64b49cce | 78 | sect->vma && bfd_get_section_size (sect)) |
0ad10c0f | 79 | { |
61522196 | 80 | excl_list->add ((LPBYTE) sect->vma, (SIZE_T) bfd_get_section_size (sect)); |
64b49cce AM |
81 | deb_printf ("excluding section: %20s %08lx\n", sect->name, |
82 | bfd_get_section_size (sect)); | |
0ad10c0f CF |
83 | } |
84 | } | |
85 | ||
86 | int | |
eedc36cb | 87 | parse_pe (const char *file_name, exclusion * excl_list) |
0ad10c0f | 88 | { |
eedc36cb CF |
89 | if (file_name == NULL || excl_list == NULL) |
90 | return 0; | |
0ad10c0f | 91 | |
eedc36cb CF |
92 | bfd *abfd = bfd_openr (file_name, "pei-i386"); |
93 | if (abfd == NULL) | |
0ad10c0f | 94 | { |
eedc36cb | 95 | bfd_perror ("failed to open file"); |
0ad10c0f CF |
96 | return 0; |
97 | } | |
98 | ||
eedc36cb CF |
99 | bfd_check_format (abfd, bfd_object); |
100 | bfd_map_over_sections (abfd, &select_data_section, (PTR) excl_list); | |
0ad10c0f CF |
101 | excl_list->sort_and_check (); |
102 | ||
eedc36cb | 103 | bfd_close (abfd); |
0ad10c0f CF |
104 | return 1; |
105 | } |