aboutsummaryrefslogtreecommitdiffstats
path: root/efi/wrapper.h
blob: 0e6b38ea7ac81e50f42c09b738447dc69268dc05 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
#ifndef EFI_WRAPPER_H
#define EFI_WRAPPER_H

#define MSDOS_SIGNATURE	0x5a4d
#define PE_SIGNATURE	0x4550
#define PE32_FORMAT	0x10b
#define PE32P_FORMAT	0x20b	/* PE32+ */

#define IMAGE_FILE_MACHINE_I386			0x14c
#define IMAGE_FILE_MACHINE_X86_64		0x8664
#define IMAGE_FILE_EXECUTABLE_IMAGE		0x0002
#define IMAGE_FILE_LINE_NUMBERS_STRIPPED	0x0004
#define IMAGE_FILE_32BIT_MACHINE		0x0100
#define IMAGE_FILE_DEBUG_STRIPPED		0x0200

#define IMAGE_SUBSYSTEM_EFI_APPLICATION		0x0a

#define IMAGE_SCN_CNT_CODE		0x00000020
#define IMAGE_SCN_CNT_INITIALIZED_DATA	0x00000040
#define IMAGE_SCN_ALIGN_1BYTES		0x00100000
#define IMAGE_SCN_ALIGN_16BYTES		0x00500000
#define IMAGE_SCN_MEM_DISCARDABLE	0x02000000
#define IMAGE_SCN_MEM_EXECUTE		0x20000000
#define IMAGE_SCN_MEM_READ		0x40000000

#define __packed	__attribute__((packed))
#define OFFSETOF(t,m)	((size_t)&((t *)0)->m)

struct header {
	__uint16_t msdos_signature;
	__uint8_t _pad1[0x16];
	__uint16_t relocs_ptr;
	__uint8_t __pad2[0x3c - 0x1a];
	__uint32_t pe_hdr;
	__uint16_t pe_signature;
	__uint16_t _pad2;
} __packed;

/* FIXME: when setting up coff_hdr, set up optional_hdr_sz
 * based on PE32 or PE32+ format
 */
/*
 * COFF header
 */
struct coff_hdr {
	__uint16_t arch;
	__uint16_t nr_sections;
	__uint32_t timedatestamp;
	__uint32_t symtab;
	__uint32_t nr_syms;
	__uint16_t optional_hdr_sz;
	__uint16_t characteristics;
} __packed;

struct optional_hdr {
	__uint16_t format;
	__uint8_t major_linker_version;
	__uint8_t minor_linker_version;
	__uint32_t code_sz;
	__uint32_t initialized_data_sz;
	__uint32_t uninitialized_data_sz;
	__uint32_t entry_point;
	__uint32_t base_code;
	__uint32_t data;
} __packed;

/* For PE32+, the optional_header does NOT have
 * data after base_code
 */
struct optional_hdr_pe32p {
	__uint16_t format;
	__uint8_t major_linker_version;
	__uint8_t minor_linker_version;
	__uint32_t code_sz;
	__uint32_t initialized_data_sz;
	__uint32_t uninitialized_data_sz;
	__uint32_t entry_point;
	__uint32_t base_code;
} __packed;
/*
 * Extra header fields
 */
struct extra_hdr {
	__uint32_t image_base;
	__uint32_t section_align;
	__uint32_t file_align;
	__uint16_t major_os_version;
	__uint16_t minor_os_version;
	__uint16_t major_image_version;
	__uint16_t minor_image_version;
	__uint16_t major_subsystem_version;
	__uint16_t minor_subsystem_version;
	__uint32_t win32_version;
	__uint32_t image_sz;
	__uint32_t headers_sz;
	__uint32_t checksum;
	__uint16_t subsystem;
	__uint16_t dll_characteristics;
	__uint32_t stack_reserve_sz;
	__uint32_t stack_commit_sz;
	__uint32_t heap_reserve_sz;
	__uint32_t heap_commit_sz;
	__uint32_t loader_flags;
	__uint32_t rva_and_sizes_nr;
	struct {
		__uint64_t export_table;
		__uint64_t import_table;
		__uint64_t resource_table;
		__uint64_t exception_table;
		__uint64_t certification_table;
		__uint64_t base_relocation_table;
	} data_directory;
} __packed;

/* Extra header for PE32+ format 
 * FIXME: There are additional fields in Microsoft PE COFF v8
 */

struct extra_hdr_pe32p {
	__uint64_t image_base;
	__uint32_t section_align;
	__uint32_t file_align;
	__uint16_t major_os_version;
	__uint16_t minor_os_version;
	__uint16_t major_image_version;
	__uint16_t minor_image_version;
	__uint16_t major_subsystem_version;
	__uint16_t minor_subsystem_version;
	__uint32_t win32_version;
	__uint32_t image_sz;
	__uint32_t headers_sz;
	__uint32_t checksum;
	__uint16_t subsystem;
	__uint16_t dll_characteristics;
	__uint64_t stack_reserve_sz;
	__uint64_t stack_commit_sz;
	__uint64_t heap_reserve_sz;
	__uint64_t heap_commit_sz;
	__uint32_t loader_flags;
	__uint32_t rva_and_sizes_nr;
	struct {
		__uint64_t export_table;
		__uint64_t import_table;
		__uint64_t resource_table;
		__uint64_t exception_table;
		__uint64_t certification_table;
		__uint64_t base_relocation_table;
	} data_directory;
} __packed;

struct section {
	__uint8_t name[8];
	__uint32_t virtual_sz;
	__uint32_t virtual_address;
	__uint32_t raw_data_sz;
	__uint32_t raw_data;
	__uint32_t relocs;
	__uint32_t line_numbers;
	__uint16_t relocs_nr;
	__uint16_t line_numbers_nr;
	__uint32_t characteristics;
} __packed;

struct coff_reloc {
	__uint32_t virtual_address;
	__uint32_t symtab_index;
	__uint16_t type;
};

#endif /* EFI_WRAPPER_H */