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freebsd-dev/sys/compat/ndis/pe_var.h
Bill Paul d02239a3af Create new i386 windows/bsd thunking layer, similar to the amd64 thunking 
layer, but with a twist.

The twist has to do with the fact that Microsoft supports structured
exception handling in kernel mode. On the i386 arch, exception handling
is implemented by hanging an exception registration list off the
Thread Environment Block (TEB), and the TEB is accessed via the %fs
register. The problem is, we use %fs as a pointer to the pcpu stucture,
which means any driver that tries to write through %fs:0 will overwrite
the curthread pointer and make a serious mess of things.

To get around this, Project Evil now creates a special entry in
the GDT on each processor. When we call into Windows code, a context
switch routine will fix up %fs so it points to our new descriptor,
which in turn points to a fake TEB. When the Windows code returns,
or calls out to an external routine, we swap %fs back again. Currently,
Project Evil makes use of GDT slot 7, which is all 0s by default.
I fully expect someone to jump up and say I can't do that, but I
couldn't find any code that makes use of this entry anywhere. Sadly,
this was the only method I could come up with that worked on both
UP and SMP. (Modifying the LDT works on UP, but becomes incredibly
complicated on SMP.) If necessary, the context switching stuff can
be yanked out while preserving the convention calling wrappers.

(Fortunately, it looks like Microsoft uses some special epilog/prolog
code on amd64 to implement exception handling, so the same nastiness
won't be necessary on that arch.)

The advantages are:

- Any driver that uses %fs as though it were a TEB pointer won't
  clobber pcpu.
- All the __stdcall/__fastcall/__regparm stuff that's specific to
  gcc goes away.

Also, while I'm here, switch NdisGetSystemUpTime() back to using
nanouptime() again. It turns out nanouptime() is way more accurate
than just using ticks(). On slower machines, the Atheros drivers
I tested seem to take a long time to associate due to the loss
in accuracy.
2005-04-11 02:02:35 +00:00

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/*-
* Copyright (c) 2003
* Bill Paul <wpaul@windriver.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _PE_VAR_H_
#define _PE_VAR_H_
/*
* Image Format
*/
#define IMAGE_DOS_SIGNATURE 0x5A4D /* MZ */
#define IMAGE_OS2_SIGNATURE 0x454E /* NE */
#define IMAGE_OS2_SIGNATURE_LE 0x454C /* LE */
#define IMAGE_VXD_SIGNATURE 0x454C /* LE */
#define IMAGE_NT_SIGNATURE 0x00004550 /* PE00 */
/*
* All PE files have one of these, just so if you attempt to
* run them, they'll print out a message telling you they can
* only be run in Windows.
*/
struct image_dos_header {
uint16_t idh_magic; /* Magic number */
uint16_t idh_cblp; /* Bytes on last page of file */
uint16_t idh_cp; /* Pages in file */
uint16_t idh_crlc; /* Relocations */
uint16_t idh_cparhdr; /* Size of header in paragraphs */
uint16_t idh_minalloc; /* Minimum extra paragraphs needed */
uint16_t idh_maxalloc; /* Maximum extra paragraphs needed */
uint16_t idh_ss; /* Initial (relative) SS value */
uint16_t idh_sp; /* Initial SP value */
uint16_t idh_csum; /* Checksum */
uint16_t idh_ip; /* Initial IP value */
uint16_t idh_cs; /* Initial (relative) CS value */
uint16_t idh_lfarlc; /* File address of relocation table */
uint16_t idh_ovno; /* Overlay number */
uint16_t idh_rsvd1[4]; /* Reserved words */
uint16_t idh_oemid; /* OEM identifier (for idh_oeminfo) */
uint16_t idh_oeminfo; /* OEM information; oemid specific */
uint16_t idh_rsvd2[10]; /* Reserved words */
uint32_t idh_lfanew; /* File address of new exe header */
};
typedef struct image_dos_header image_dos_header;
/*
* File header format.
*/
struct image_file_header {
uint16_t ifh_machine; /* Machine type */
uint16_t ifh_numsections; /* # of sections */
uint32_t ifh_timestamp; /* Date/time stamp */
uint32_t ifh_symtblptr; /* Offset to symbol table */
uint32_t ifh_numsyms; /* # of symbols */
uint16_t ifh_optionalhdrlen; /* Size of optional header */
uint16_t ifh_characteristics; /* Characteristics */
};
typedef struct image_file_header image_file_header;
/* Machine types */
#define IMAGE_FILE_MACHINE_UNKNOWN 0
#define IMAGE_FILE_MACHINE_I860 0x014d
#define IMAGE_FILE_MACHINE_I386 0x014c
#define IMAGE_FILE_MACHINE_R3000 0x0162
#define IMAGE_FILE_MACHINE_R4000 0x0166
#define IMAGE_FILE_MACHINE_R10000 0x0168
#define IMAGE_FILE_MACHINE_WCEMIPSV2 0x0169
#define IMAGE_FILE_MACHINE_ALPHA 0x0184
#define IMAGE_FILE_MACHINE_SH3 0x01a2
#define IMAGE_FILE_MACHINE_SH3DSP 0x01a3
#define IMAGE_FILE_MACHINE_SH3E 0x01a4
#define IMAGE_FILE_MACHINE_SH4 0x01a6
#define IMAGE_FILE_MACHINE_SH5 0x01a8
#define IMAGE_FILE_MACHINE_ARM 0x01c0
#define IMAGE_FILE_MACHINE_THUMB 0x01c2
#define IMAGE_FILE_MACHINE_AM33 0x01d3
#define IMAGE_FILE_MACHINE_POWERPC 0x01f0
#define IMAGE_FILE_MACHINE_POWERPCFP 0x01f1
#define IMAGE_FILE_MACHINE_IA64 0x0200
#define IMAGE_FILE_MACHINE_MIPS16 0x0266
#define IMAGE_FILE_MACHINE_ALPHA64 0x0284
#define IMAGE_FILE_MACHINE_MIPSFPU 0x0366
#define IMAGE_FILE_MACHINE_MIPSFPU16 0x0466
#define IMAGE_FILE_MACHINE_AXP64 IMAGE_FILE_MACHINE_ALPHA64
#define IMAGE_FILE_MACHINE_TRICORE 0x0520
#define IMAGE_FILE_MACHINE_CEF 0x0cef
#define IMAGE_FILE_MACHINE_EBC 0x0ebc
#define IMAGE_FILE_MACHINE_AMD64 0x8664
#define IMAGE_FILE_MACHINE_M32R 0x9041
#define IMAGE_FILE_MACHINE_CEE 0xc0ee
/* Characteristics */
#define IMAGE_FILE_RELOCS_STRIPPED 0x0001 /* No relocation info */
#define IMAGE_FILE_EXECUTABLE_IMAGE 0x0002
#define IMAGE_FILE_LINE_NUMS_STRIPPED 0x0004
#define IMAGE_FILE_LOCAL_SYMS_STRIPPED 0x0008
#define IMAGE_FILE_AGGRESIVE_WS_TRIM 0x0010
#define IMAGE_FILE_LARGE_ADDRESS_AWARE 0x0020
#define IMAGE_FILE_16BIT_MACHINE 0x0040
#define IMAGE_FILE_BYTES_REVERSED_LO 0x0080
#define IMAGE_FILE_32BIT_MACHINE 0x0100
#define IMAGE_FILE_DEBUG_STRIPPED 0x0200
#define IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP 0x0400
#define IMAGE_FILE_NET_RUN_FROM_SWAP 0x0800
#define IMAGE_FILE_SYSTEM 0x1000
#define IMAGE_FILE_DLL 0x2000
#define IMAGE_FILE_UP_SYSTEM_ONLY 0x4000
#define IMAGE_FILE_BYTES_REVERSED_HI 0x8000
#define IMAGE_SIZEOF_FILE_HEADER 20
/*
* Directory format.
*/
struct image_data_directory {
uint32_t idd_vaddr; /* virtual address */
uint32_t idd_size; /* size */
};
typedef struct image_data_directory image_data_directory;
#define IMAGE_DIRECTORY_ENTRIES_MAX 16
/*
* Optional header format.
*/
struct image_optional_header {
/* Standard fields */
uint16_t ioh_magic;
uint8_t ioh_linkerver_major;
uint8_t ioh_linkerver_minor;
uint32_t ioh_codesize;
uint32_t ioh_datasize;
uint32_t ioh_bsssize;
uint32_t ioh_entryaddr;
uint32_t ioh_codebaseaddr;
#ifndef __amd64__
uint32_t ioh_databaseaddr;
#endif
/* NT-specific fields */
uintptr_t ioh_imagebase;
uint32_t ioh_sectalign;
uint32_t ioh_filealign;
uint16_t ioh_osver_major;
uint16_t ioh_osver_minor;
uint16_t ioh_imagever_major;
uint16_t ioh_imagever_minor;
uint16_t ioh_subsys_major;
uint16_t ioh_subsys_minor;
uint32_t ioh_win32ver;
uint32_t ioh_imagesize;
uint32_t ioh_headersize;
uint32_t ioh_csum;
uint16_t ioh_subsys;
uint16_t ioh_dll_characteristics;
uintptr_t ioh_stackreservesize;
uintptr_t ioh_stackcommitsize;
uintptr_t ioh_heapreservesize;
uintptr_t ioh_heapcommitsize;
uint16_t ioh_loaderflags;
uint32_t ioh_rva_size_cnt;
image_data_directory ioh_datadir[IMAGE_DIRECTORY_ENTRIES_MAX];
};
typedef struct image_optional_header image_optional_header;
struct image_nt_header {
uint32_t inh_signature;
image_file_header inh_filehdr;
image_optional_header inh_optionalhdr;
};
typedef struct image_nt_header image_nt_header;
/* Directory Entries */
#define IMAGE_DIRECTORY_ENTRY_EXPORT 0 /* Export Directory */
#define IMAGE_DIRECTORY_ENTRY_IMPORT 1 /* Import Directory */
#define IMAGE_DIRECTORY_ENTRY_RESOURCE 2 /* Resource Directory */
#define IMAGE_DIRECTORY_ENTRY_EXCEPTION 3 /* Exception Directory */
#define IMAGE_DIRECTORY_ENTRY_SECURITY 4 /* Security Directory */
#define IMAGE_DIRECTORY_ENTRY_BASERELOC 5 /* Base Relocation Table */
#define IMAGE_DIRECTORY_ENTRY_DEBUG 6 /* Debug Directory */
#define IMAGE_DIRECTORY_ENTRY_COPYRIGHT 7 /* Description String */
#define IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8 /* Machine Value (MIPS GP) */
#define IMAGE_DIRECTORY_ENTRY_TLS 9 /* TLS Directory */
#define IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10 /* Load Configuration Directory */
#define IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11 /* Bound Import Directory in headers */
#define IMAGE_DIRECTORY_ENTRY_IAT 12 /* Import Address Table */
#define IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13
#define IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14
/* Resource types */
#define RT_CURSOR 1
#define RT_BITMAP 2
#define RT_ICON 3
#define RT_MENU 4
#define RT_DIALOG 5
#define RT_STRING 6
#define RT_FONTDIR 7
#define RT_FONT 8
#define RT_ACCELERATOR 9
#define RT_RCDATA 10
#define RT_MESSAGETABLE 11
#define RT_GROUP_CURSOR 12
#define RT_GROUP_ICON 14
#define RT_VERSION 16
#define RT_DLGINCLUDE 17
#define RT_PLUGPLAY 19
#define RT_VXD 20
#define RT_ANICURSOR 21
#define RT_ANIICON 22
#define RT_HTML 23
/*
* Section header format.
*/
#define IMAGE_SHORT_NAME_LEN 8
struct image_section_header {
uint8_t ish_name[IMAGE_SHORT_NAME_LEN];
union {
uint32_t ish_paddr;
uint32_t ish_vsize;
} ish_misc;
uint32_t ish_vaddr;
uint32_t ish_rawdatasize;
uint32_t ish_rawdataaddr;
uint32_t ish_relocaddr;
uint32_t ish_linenumaddr;
uint16_t ish_numrelocs;
uint16_t ish_numlinenums;
uint32_t ish_characteristics;
};
typedef struct image_section_header image_section_header;
#define IMAGE_SIZEOF_SECTION_HEADER 40
/*
* Import format
*/
struct image_import_by_name {
uint16_t iibn_hint;
uint8_t iibn_name[1];
};
#define IMAGE_ORDINAL_FLAG 0x80000000
#define IMAGE_ORDINAL(Ordinal) (Ordinal & 0xffff)
struct image_import_descriptor {
uint32_t iid_import_name_table_addr;
uint32_t iid_timestamp;
uint32_t iid_forwardchain;
uint32_t iid_nameaddr;
uint32_t iid_import_address_table_addr;
};
typedef struct image_import_descriptor image_import_descriptor;
struct image_base_reloc {
uint32_t ibr_vaddr;
uint32_t ibr_blocksize;
uint16_t ibr_rel[1];
};
typedef struct image_base_reloc image_base_reloc;
#define IMR_RELTYPE(x) ((x >> 12) & 0xF)
#define IMR_RELOFFSET(x) (x & 0xFFF)
/* generic relocation types */
#define IMAGE_REL_BASED_ABSOLUTE 0
#define IMAGE_REL_BASED_HIGH 1
#define IMAGE_REL_BASED_LOW 2
#define IMAGE_REL_BASED_HIGHLOW 3
#define IMAGE_REL_BASED_HIGHADJ 4
#define IMAGE_REL_BASED_MIPS_JMPADDR 5
#define IMAGE_REL_BASED_SECTION 6
#define IMAGE_REL_BASED_REL 7
#define IMAGE_REL_BASED_MIPS_JMPADDR16 9
#define IMAGE_REL_BASED_IA64_IMM64 9 /* yes, 9 too */
#define IMAGE_REL_BASED_DIR64 10
#define IMAGE_REL_BASED_HIGH3ADJ 11
struct image_resource_directory_entry {
uint32_t irde_name;
uint32_t irde_dataoff;
};
typedef struct image_resource_directory_entry image_resource_directory_entry;
#define RESOURCE_NAME_STR 0x80000000
#define RESOURCE_DIR_FLAG 0x80000000
struct image_resource_directory {
uint32_t ird_characteristics;
uint32_t ird_timestamp;
uint16_t ird_majorver;
uint16_t ird_minorver;
uint16_t ird_named_entries;
uint16_t ird_id_entries;
#ifdef notdef
image_resource_directory_entry ird_entries[1];
#endif
};
typedef struct image_resource_directory image_resource_directory;
struct image_resource_directory_string {
uint16_t irds_len;
char irds_name[1];
};
typedef struct image_resource_directory_string image_resource_directory_string;
struct image_resource_directory_string_u {
uint16_t irds_len;
char irds_name[1];
};
typedef struct image_resource_directory_string_u
image_resource_directory_string_u;
struct image_resource_data_entry {
uint32_t irde_offset;
uint32_t irde_size;
uint32_t irde_codepage;
uint32_t irde_rsvd;
};
typedef struct image_resource_data_entry image_resource_data_entry;
struct message_resource_data {
uint32_t mrd_numblocks;
#ifdef notdef
message_resource_block mrd_blocks[1];
#endif
};
typedef struct message_resource_data message_resource_data;
struct message_resource_block {
uint32_t mrb_lowid;
uint32_t mrb_highid;
uint32_t mrb_entryoff;
};
typedef struct message_resource_block message_resource_block;
struct message_resource_entry {
uint16_t mre_len;
uint16_t mre_flags;
char mre_text[];
};
typedef struct message_resource_entry message_resource_entry;
#define MESSAGE_RESOURCE_UNICODE 0x0001
struct image_patch_table {
char *ipt_name;
void (*ipt_func)(void);
void (*ipt_wrap)(void);
int ipt_argcnt;
int ipt_ftype;
};
typedef struct image_patch_table image_patch_table;
/*
* AMD64 support. Microsoft uses a different calling convention
* than everyone else on the amd64 platform. Sadly, gcc has no
* built-in support for it (yet).
*
* The three major differences we're concerned with are:
*
* - The first 4 register-sized arguments are passed in the
* %rcx, %rdx, %r8 and %r9 registers, and the rest are pushed
* onto the stack. (The ELF ABI uses 6 registers, not 4).
*
* - The caller must reserve space on the stack for the 4
* register arguments in case the callee has to spill them.
*
* - The stack myst be 16-byte aligned by the time the callee
* executes. A call instruction implicitly pushes an 8 byte
* return address onto the stack. We have to make sure that
* the amount of space we consume, plus the return address,
* is a multiple of 16 bytes in size. This means that in
* some cases, we may need to chew up an extra 8 bytes on
* the stack that will be unused.
*
* On the bright side, Microsoft seems to be using just the one
* calling convention for all functions on amd64, unlike x86 where
* they use a mix of _stdcall, _fastcall and _cdecl.
*/
#ifdef __amd64__
extern uint64_t x86_64_call1(void *, uint64_t);
extern uint64_t x86_64_call2(void *, uint64_t, uint64_t);
extern uint64_t x86_64_call3(void *, uint64_t, uint64_t, uint64_t);
extern uint64_t x86_64_call4(void *, uint64_t, uint64_t, uint64_t, uint64_t);
extern uint64_t x86_64_call5(void *, uint64_t, uint64_t, uint64_t, uint64_t,
uint64_t);
extern uint64_t x86_64_call6(void *, uint64_t, uint64_t, uint64_t, uint64_t,
uint64_t, uint64_t);
#define MSCALL1(fn, a) \
x86_64_call1((fn), (uint64_t)(a))
#define MSCALL2(fn, a, b) \
x86_64_call2((fn), (uint64_t)(a), (uint64_t)(b))
#define MSCALL3(fn, a, b, c) \
x86_64_call3((fn), (uint64_t)(a), (uint64_t)(b), \
(uint64_t)(c))
#define MSCALL4(fn, a, b, c, d) \
x86_64_call4((fn), (uint64_t)(a), (uint64_t)(b), \
(uint64_t)(c), (uint64_t)(d))
#define MSCALL5(fn, a, b, c, d, e) \
x86_64_call5((fn), (uint64_t)(a), (uint64_t)(b), \
(uint64_t)(c), (uint64_t)(d), (uint64_t)(e))
#define MSCALL6(fn, a, b, c, d, e, f) \
x86_64_call6((fn), (uint64_t)(a), (uint64_t)(b), \
(uint64_t)(c), (uint64_t)(d), (uint64_t)(e), (uint64_t)(f))
#endif /* __amd64__ */
#ifdef __i386__
extern uint32_t x86_stdcall_call(void *, int, ...);
#define MSCALL1(fn, a) x86_stdcall_call(fn, 1, (a))
#define MSCALL2(fn, a, b) x86_stdcall_call(fn, 2, (a), (b))
#define MSCALL3(fn, a, b, c) x86_stdcall_call(fn, 3, (a), (b), (c))
#define MSCALL4(fn, a, b, c, d) x86_stdcall_call(fn, 4, (a), (b), (c), (d))
#define MSCALL5(fn, a, b, c, d, e) \
x86_stdcall_call(fn, 5, (a), (b), (c), (d), (e))
#define MSCALL6(fn, a, b, c, d, e, f) \
x86_stdcall_call(fn, 6, (a), (b), (c), (d), (e), (f))
#endif /* __i386__ */
#define FUNC void(*)(void)
#ifdef __i386__
#define IMPORT_SFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_STDCALL }
#define IMPORT_SFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_STDCALL }
#define IMPORT_FFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_FASTCALL }
#define IMPORT_FFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_FASTCALL }
#define IMPORT_RFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_REGPARM }
#define IMPORT_RFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_REGPARM }
#define IMPORT_CFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_CDECL }
#define IMPORT_CFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_CDECL }
#endif /* __i386__ */
#ifdef __amd64__
#define IMPORT_SFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_AMD64 }
#define IMPORT_SFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_AMD64 }
#define IMPORT_FFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_AMD64 }
#define IMPORT_FFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_AMD64 }
#define IMPORT_RFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_AMD64 }
#define IMPORT_RFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_AMD64 }
#define IMPORT_CFUNC(x, y) { #x, (FUNC)x, NULL, y, WINDRV_WRAP_AMD64 }
#define IMPORT_CFUNC_MAP(x, y, z) \
{ #x, (FUNC)y, NULL, z, WINDRV_WRAP_AMD64 }
#endif /* __amd64__ */
__BEGIN_DECLS
extern int pe_get_dos_header(vm_offset_t, image_dos_header *);
extern int pe_is_nt_image(vm_offset_t);
extern int pe_get_optional_header(vm_offset_t, image_optional_header *);
extern int pe_get_file_header(vm_offset_t, image_file_header *);
extern int pe_get_section_header(vm_offset_t, image_section_header *);
extern int pe_numsections(vm_offset_t);
extern vm_offset_t pe_imagebase(vm_offset_t);
extern vm_offset_t pe_directory_offset(vm_offset_t, uint32_t);
extern vm_offset_t pe_translate_addr (vm_offset_t, vm_offset_t);
extern int pe_get_section(vm_offset_t, image_section_header *, const char *);
extern int pe_relocate(vm_offset_t);
extern int pe_get_import_descriptor(vm_offset_t, image_import_descriptor *, char *);
extern int pe_patch_imports(vm_offset_t, char *, image_patch_table *);
extern int pe_get_messagetable(vm_offset_t, message_resource_data **);
extern int pe_get_message(vm_offset_t, uint32_t, char **, int *, uint16_t *);
__END_DECLS
#endif /* _PE_VAR_H_ */
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