efi/wrapper.h

   1 #ifndef EFI_WRAPPER_H
   2 #define EFI_WRAPPER_H
   3
   4 #define MSDOS_SIGNATURE 0x5a4d
   5 #define PE_SIGNATURE    0x4550
   6 #define PE32_FORMAT     0x10b
   7 #define PE32P_FORMAT    0x20b   /* PE32+ */
   8
   9 #define IMAGE_FILE_MACHINE_I386                 0x14c
  10 #define IMAGE_FILE_MACHINE_X86_64               0x8664
  11 #define IMAGE_FILE_EXECUTABLE_IMAGE             0x0002
  12 #define IMAGE_FILE_LINE_NUMBERS_STRIPPED        0x0004
  13 #define IMAGE_FILE_32BIT_MACHINE                0x0100
  14 #define IMAGE_FILE_DEBUG_STRIPPED               0x0200
  15
  16 #define IMAGE_SUBSYSTEM_EFI_APPLICATION         0x0a
  17
  18 #define IMAGE_SCN_CNT_CODE              0x00000020
  19 #define IMAGE_SCN_CNT_INITIALIZED_DATA  0x00000040
  20 #define IMAGE_SCN_ALIGN_1BYTES          0x00100000
  21 #define IMAGE_SCN_ALIGN_16BYTES         0x00500000
  22 #define IMAGE_SCN_MEM_DISCARDABLE       0x02000000
  23 #define IMAGE_SCN_MEM_EXECUTE           0x20000000
  24 #define IMAGE_SCN_MEM_READ              0x40000000
  25
  26 #define __packed        __attribute__((packed))
  27 #define OFFSETOF(t,m)   ((size_t)&((t *)0)->m)
  28
  29 struct header {
  30         __uint16_t msdos_signature;
  31         __uint8_t _pad1[0x16];
  32         __uint16_t relocs_ptr;
  33         __uint8_t __pad2[0x3c - 0x1a];
  34         __uint32_t pe_hdr;
  35         __uint16_t pe_signature;
  36         __uint16_t _pad2;
  37 } __packed;
  38
  39 /* FIXME: when setting up coff_hdr, set up optional_hdr_sz
  40  * based on PE32 or PE32+ format
  41  */
  42 /*
  43  * COFF header
  44  */
  45 struct coff_hdr {
  46         __uint16_t arch;
  47         __uint16_t nr_sections;
  48         __uint32_t timedatestamp;
  49         __uint32_t symtab;
  50         __uint32_t nr_syms;
  51         __uint16_t optional_hdr_sz;
  52         __uint16_t characteristics;
  53 } __packed;
  54
  55 struct optional_hdr {
  56         __uint16_t format;
  57         __uint8_t major_linker_version;
  58         __uint8_t minor_linker_version;
  59         __uint32_t code_sz;
  60         __uint32_t initialized_data_sz;
  61         __uint32_t uninitialized_data_sz;
  62         __uint32_t entry_point;
  63         __uint32_t base_code;
  64         __uint32_t data;
  65 } __packed;
  66
  67 /* For PE32+, the optional_header does NOT have
  68  * data after base_code
  69  */
  70 struct optional_hdr_pe32p {
  71         __uint16_t format;
  72         __uint8_t major_linker_version;
  73         __uint8_t minor_linker_version;
  74         __uint32_t code_sz;
  75         __uint32_t initialized_data_sz;
  76         __uint32_t uninitialized_data_sz;
  77         __uint32_t entry_point;
  78         __uint32_t base_code;
  79 } __packed;
  80 /*
  81  * Extra header fields
  82  */
  83 struct extra_hdr {
  84         __uint32_t image_base;
  85         __uint32_t section_align;
  86         __uint32_t file_align;
  87         __uint16_t major_os_version;
  88         __uint16_t minor_os_version;
  89         __uint16_t major_image_version;
  90         __uint16_t minor_image_version;
  91         __uint16_t major_subsystem_version;
  92         __uint16_t minor_subsystem_version;
  93         __uint32_t win32_version;
  94         __uint32_t image_sz;
  95         __uint32_t headers_sz;
  96         __uint32_t checksum;
  97         __uint16_t subsystem;
  98         __uint16_t dll_characteristics;
  99         __uint32_t stack_reserve_sz;
 100         __uint32_t stack_commit_sz;
 101         __uint32_t heap_reserve_sz;
 102         __uint32_t heap_commit_sz;
 103         __uint32_t loader_flags;
 104         __uint32_t rva_and_sizes_nr;
 105         struct {
 106                 __uint64_t export_table;
 107                 __uint64_t import_table;
 108                 __uint64_t resource_table;
 109                 __uint64_t exception_table;
 110                 __uint64_t certification_table;
 111                 __uint64_t base_relocation_table;
 112         } data_directory;
 113 } __packed;
 114
 115 /* Extra header for PE32+ format
 116  * FIXME: There are additional fields in Microsoft PE COFF v8
 117  */
 118
 119 struct extra_hdr_pe32p {
 120         __uint64_t image_base;
 121         __uint32_t section_align;
 122         __uint32_t file_align;
 123         __uint16_t major_os_version;
 124         __uint16_t minor_os_version;
 125         __uint16_t major_image_version;
 126         __uint16_t minor_image_version;
 127         __uint16_t major_subsystem_version;
 128         __uint16_t minor_subsystem_version;
 129         __uint32_t win32_version;
 130         __uint32_t image_sz;
 131         __uint32_t headers_sz;
 132         __uint32_t checksum;
 133         __uint16_t subsystem;
 134         __uint16_t dll_characteristics;
 135         __uint64_t stack_reserve_sz;
 136         __uint64_t stack_commit_sz;
 137         __uint64_t heap_reserve_sz;
 138         __uint64_t heap_commit_sz;
 139         __uint32_t loader_flags;
 140         __uint32_t rva_and_sizes_nr;
 141         struct {
 142                 __uint64_t export_table;
 143                 __uint64_t import_table;
 144                 __uint64_t resource_table;
 145                 __uint64_t exception_table;
 146                 __uint64_t certification_table;
 147                 __uint64_t base_relocation_table;
 148         } data_directory;
 149 } __packed;
 150
 151 struct section {
 152         __uint8_t name[8];
 153         __uint32_t virtual_sz;
 154         __uint32_t virtual_address;
 155         __uint32_t raw_data_sz;
 156         __uint32_t raw_data;
 157         __uint32_t relocs;
 158         __uint32_t line_numbers;
 159         __uint16_t relocs_nr;
 160         __uint16_t line_numbers_nr;
 161         __uint32_t characteristics;
 162 } __packed;
 163
 164 struct coff_reloc {
 165         __uint32_t virtual_address;
 166         __uint32_t symtab_index;
 167         __uint16_t type;
 168 };
 169
 170 #endif /* EFI_WRAPPER_H */