+++ /dev/null
-/* Add an uninitialized data section to an executable.
- Copyright (C) 1999, 2001-2014 Free Software Foundation, Inc.
-
-This file is part of GNU Emacs.
-
-GNU Emacs is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-GNU Emacs is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
-
-
- Andrew Innes <andrewi@harlequin.co.uk> 04-Jan-1999
- based on code from unexw32.c
-*/
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <time.h>
-#if defined(__GNUC__) && !defined(_W64)
-#define _ANONYMOUS_UNION
-#define _ANONYMOUS_STRUCT
-#endif
-#include <windows.h>
-
-/* Include relevant definitions from IMAGEHLP.H, which can be found
- in \\win32sdk\mstools\samples\image\include\imagehlp.h. */
-
-PIMAGE_NT_HEADERS
-(__stdcall * pfnCheckSumMappedFile) (PVOID BaseAddress,
- DWORD_PTR FileLength,
- PDWORD_PTR HeaderSum,
- PDWORD_PTR CheckSum);
-
-#undef min
-#undef max
-#define min(x, y) (((x) < (y)) ? (x) : (y))
-#define max(x, y) (((x) > (y)) ? (x) : (y))
-
-
-/* File handling. */
-
-typedef struct file_data {
- const char *name;
- unsigned long size;
- HANDLE file;
- HANDLE file_mapping;
- unsigned char *file_base;
-} file_data;
-
-int
-open_input_file (file_data *p_file, const char *filename)
-{
- HANDLE file;
- HANDLE file_mapping;
- void *file_base;
- unsigned long size, upper_size;
-
- file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL,
- OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
- if (file == INVALID_HANDLE_VALUE)
- return FALSE;
-
- size = GetFileSize (file, &upper_size);
- file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY,
- 0, size, NULL);
- if (!file_mapping)
- return FALSE;
-
- file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size);
- if (file_base == 0)
- return FALSE;
-
- p_file->name = filename;
- p_file->size = size;
- p_file->file = file;
- p_file->file_mapping = file_mapping;
- p_file->file_base = file_base;
-
- return TRUE;
-}
-
-int
-open_output_file (file_data *p_file, const char *filename, unsigned long size)
-{
- HANDLE file;
- HANDLE file_mapping;
- void *file_base;
-
- file = CreateFile (filename, GENERIC_READ | GENERIC_WRITE, 0, NULL,
- CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
- if (file == INVALID_HANDLE_VALUE)
- return FALSE;
-
- file_mapping = CreateFileMapping (file, NULL, PAGE_READWRITE,
- 0, size, NULL);
- if (!file_mapping)
- return FALSE;
-
- file_base = MapViewOfFile (file_mapping, FILE_MAP_WRITE, 0, 0, size);
- if (file_base == 0)
- return FALSE;
-
- p_file->name = filename;
- p_file->size = size;
- p_file->file = file;
- p_file->file_mapping = file_mapping;
- p_file->file_base = file_base;
-
- return TRUE;
-}
-
-/* Close the system structures associated with the given file. */
-void
-close_file_data (file_data *p_file)
-{
- UnmapViewOfFile (p_file->file_base);
- CloseHandle (p_file->file_mapping);
- /* For the case of output files, set final size. */
- SetFilePointer (p_file->file, p_file->size, NULL, FILE_BEGIN);
- SetEndOfFile (p_file->file);
- CloseHandle (p_file->file);
-}
-
-
-/* Routines to manipulate NT executable file sections. */
-
-unsigned long
-get_unrounded_section_size (PIMAGE_SECTION_HEADER p_section)
-{
- /* The true section size, before rounding, for an initialized data or
- code section. (Supposedly some linkers swap the meaning of these
- two values.) */
- return min (p_section->SizeOfRawData,
- p_section->Misc.VirtualSize);
-}
-
-/* Return pointer to section header for named section. */
-IMAGE_SECTION_HEADER *
-find_section (const char *name, IMAGE_NT_HEADERS *nt_header)
-{
- PIMAGE_SECTION_HEADER section;
- int i;
-
- section = IMAGE_FIRST_SECTION (nt_header);
-
- for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++)
- {
- if (strcmp (section->Name, name) == 0)
- return section;
- section++;
- }
- return NULL;
-}
-
-/* Return pointer to section header for section containing the given
- relative virtual address. */
-IMAGE_SECTION_HEADER *
-rva_to_section (DWORD_PTR rva, IMAGE_NT_HEADERS * nt_header)
-{
- PIMAGE_SECTION_HEADER section;
- int i;
-
- section = IMAGE_FIRST_SECTION (nt_header);
-
- for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++)
- {
- /* Some linkers (eg. the NT SDK linker I believe) swapped the
- meaning of these two values - or rather, they ignored
- VirtualSize entirely and always set it to zero. This affects
- some very old exes (eg. gzip dated Dec 1993). Since
- w32_executable_type relies on this function to work reliably,
- we need to cope with this. */
- DWORD_PTR real_size = max (section->SizeOfRawData,
- section->Misc.VirtualSize);
- if (rva >= section->VirtualAddress
- && rva < section->VirtualAddress + real_size)
- return section;
- section++;
- }
- return NULL;
-}
-
-/* Return pointer to section header for section containing the given
- offset in its raw data area. */
-IMAGE_SECTION_HEADER *
-offset_to_section (DWORD_PTR offset, IMAGE_NT_HEADERS * nt_header)
-{
- PIMAGE_SECTION_HEADER section;
- int i;
-
- section = IMAGE_FIRST_SECTION (nt_header);
-
- for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++)
- {
- if (offset >= section->PointerToRawData
- && offset < section->PointerToRawData + section->SizeOfRawData)
- return section;
- section++;
- }
- return NULL;
-}
-
-/* Return offset to an object in dst, given offset in src. We assume
- there is at least one section in both src and dst images, and that
- the some sections may have been added to dst (after sections in src). */
-static DWORD_PTR
-relocate_offset (DWORD_PTR offset,
- IMAGE_NT_HEADERS * src_nt_header,
- IMAGE_NT_HEADERS * dst_nt_header)
-{
- PIMAGE_SECTION_HEADER src_section = IMAGE_FIRST_SECTION (src_nt_header);
- PIMAGE_SECTION_HEADER dst_section = IMAGE_FIRST_SECTION (dst_nt_header);
- int i = 0;
-
- while (offset >= src_section->PointerToRawData)
- {
- if (offset < src_section->PointerToRawData + src_section->SizeOfRawData)
- break;
- i++;
- if (i == src_nt_header->FileHeader.NumberOfSections)
- {
- /* Handle offsets after the last section. */
- dst_section = IMAGE_FIRST_SECTION (dst_nt_header);
- dst_section += dst_nt_header->FileHeader.NumberOfSections - 1;
- while (dst_section->PointerToRawData == 0)
- dst_section--;
- while (src_section->PointerToRawData == 0)
- src_section--;
- return offset
- + (dst_section->PointerToRawData + dst_section->SizeOfRawData)
- - (src_section->PointerToRawData + src_section->SizeOfRawData);
- }
- src_section++;
- dst_section++;
- }
- return offset +
- (dst_section->PointerToRawData - src_section->PointerToRawData);
-}
-
-#define OFFSET_TO_RVA(offset, section) \
- (section->VirtualAddress + ((DWORD_PTR)(offset) - section->PointerToRawData))
-
-#define RVA_TO_OFFSET(rva, section) \
- (section->PointerToRawData + ((DWORD_PTR)(rva) - section->VirtualAddress))
-
-#define RVA_TO_SECTION_OFFSET(rva, section) \
- ((DWORD_PTR)(rva) - section->VirtualAddress)
-
-/* Convert address in executing image to RVA. */
-#define PTR_TO_RVA(ptr) ((DWORD_PTR)(ptr) - (DWORD_PTR) GetModuleHandle (NULL))
-
-#define PTR_TO_OFFSET(ptr, pfile_data) \
- ((unsigned const char *)(ptr) - (pfile_data)->file_base)
-
-#define OFFSET_TO_PTR(offset, pfile_data) \
- ((pfile_data)->file_base + (DWORD_PTR)(offset))
-
-#define ROUND_UP(p, align) \
- (((DWORD_PTR)(p) + (align)-1) & ~((DWORD_PTR)(align)-1))
-#define ROUND_DOWN(p, align) ((DWORD_PTR)(p) & ~((DWORD_PTR)(align)-1))
-
-
-static void
-copy_executable_and_add_section (file_data *p_infile,
- file_data *p_outfile,
- const char *new_section_name,
- DWORD_PTR new_section_size)
-{
- unsigned char *dst;
- PIMAGE_DOS_HEADER dos_header;
- PIMAGE_NT_HEADERS nt_header;
- PIMAGE_NT_HEADERS dst_nt_header;
- PIMAGE_SECTION_HEADER section;
- PIMAGE_SECTION_HEADER dst_section;
- DWORD_PTR offset;
- int i;
- int be_verbose = GetEnvironmentVariable ("DEBUG_DUMP", NULL, 0) > 0;
-
-#define COPY_CHUNK(message, src, size, verbose) \
- do { \
- unsigned const char *s = (void *)(src); \
- unsigned long count = (size); \
- if (verbose) \
- { \
- printf ("%s\n", (message)); \
- printf ("\t0x%08x Offset in input file.\n", s - p_infile->file_base); \
- printf ("\t0x%08x Offset in output file.\n", dst - p_outfile->file_base); \
- printf ("\t0x%08x Size in bytes.\n", count); \
- } \
- memcpy (dst, s, count); \
- dst += count; \
- } while (0)
-
-#define DST_TO_OFFSET() PTR_TO_OFFSET (dst, p_outfile)
-#define ROUND_UP_DST_AND_ZERO(align) \
- do { \
- unsigned char *newdst = p_outfile->file_base \
- + ROUND_UP (DST_TO_OFFSET (), (align)); \
- /* Zero the alignment slop; it may actually initialize real data. */ \
- memset (dst, 0, newdst - dst); \
- dst = newdst; \
- } while (0)
-
- /* Copy the source image sequentially, ie. section by section after
- copying the headers and section table, to simplify the process of
- adding an extra section table entry (which might force the raw
- section data to be relocated).
-
- Note that dst is updated implicitly by each COPY_CHUNK. */
-
- dos_header = (PIMAGE_DOS_HEADER) p_infile->file_base;
- nt_header = (PIMAGE_NT_HEADERS) (((unsigned char *) dos_header) +
- dos_header->e_lfanew);
- section = IMAGE_FIRST_SECTION (nt_header);
-
- dst = (unsigned char *) p_outfile->file_base;
-
- COPY_CHUNK ("Copying DOS header...", dos_header,
- (DWORD_PTR) nt_header - (DWORD_PTR) dos_header, be_verbose);
- dst_nt_header = (PIMAGE_NT_HEADERS) dst;
- COPY_CHUNK ("Copying NT header...", nt_header,
- (DWORD_PTR) section - (DWORD_PTR) nt_header, be_verbose);
- dst_section = (PIMAGE_SECTION_HEADER) dst;
- COPY_CHUNK ("Copying section table...", section,
- nt_header->FileHeader.NumberOfSections * sizeof (*section),
- be_verbose);
-
- /* To improve the efficiency of demand loading, make the file
- alignment match the section alignment (VC++ 6.0 does this by
- default anyway). */
- dst_nt_header->OptionalHeader.FileAlignment =
- dst_nt_header->OptionalHeader.SectionAlignment;
-
- /* Add an uninitialized data section at the end, of the specified name
- and virtual size. */
- if (find_section (new_section_name, nt_header) == NULL)
- /* Leave room for extra section table entry; filled in below. */
- dst += sizeof (*section);
- else
- new_section_name = NULL;
-
- /* Align the first section's raw data area, and set the header size
- field accordingly. */
- ROUND_UP_DST_AND_ZERO (dst_nt_header->OptionalHeader.FileAlignment);
- dst_nt_header->OptionalHeader.SizeOfHeaders = DST_TO_OFFSET ();
-
- for (i = 0; i < nt_header->FileHeader.NumberOfSections; i++)
- {
- char msg[100];
- /* Windows section names are fixed 8-char strings, only
- zero-terminated if the name is shorter than 8 characters. */
- sprintf (msg, "Copying raw data for %.8s...", section->Name);
-
- /* Update the file-relative offset for this section's raw data (if
- it has any) in case things have been relocated; we will update
- the other offsets below once we know where everything is. */
- if (dst_section->PointerToRawData)
- dst_section->PointerToRawData = DST_TO_OFFSET ();
-
- /* Can always copy the original raw data. */
- COPY_CHUNK
- (msg, OFFSET_TO_PTR (section->PointerToRawData, p_infile),
- section->SizeOfRawData, be_verbose);
-
- /* Round up the raw data size to the new alignment. */
- dst_section->SizeOfRawData =
- ROUND_UP (dst_section->SizeOfRawData,
- dst_nt_header->OptionalHeader.FileAlignment);
-
- /* Align the next section's raw data area. */
- ROUND_UP_DST_AND_ZERO (dst_nt_header->OptionalHeader.FileAlignment);
-
- section++;
- dst_section++;
- }
-
- /* Add the extra section entry (which adds no raw data). */
- if (new_section_name != NULL)
- {
- dst_nt_header->FileHeader.NumberOfSections++;
- dst_nt_header->OptionalHeader.SizeOfImage += new_section_size;
- strncpy (dst_section->Name, new_section_name, sizeof (dst_section->Name));
- dst_section->VirtualAddress =
- section[-1].VirtualAddress
- + ROUND_UP (section[-1].Misc.VirtualSize,
- dst_nt_header->OptionalHeader.SectionAlignment);
- dst_section->Misc.VirtualSize = new_section_size;
- dst_section->PointerToRawData = 0;
- dst_section->SizeOfRawData = 0;
- dst_section->Characteristics =
- IMAGE_SCN_CNT_UNINITIALIZED_DATA
- | IMAGE_SCN_MEM_READ
- | IMAGE_SCN_MEM_WRITE;
- }
-
- /* Copy remainder of source image. */
- section--;
- offset = ROUND_UP (section->PointerToRawData + section->SizeOfRawData,
- nt_header->OptionalHeader.FileAlignment);
- COPY_CHUNK
- ("Copying remainder of executable...",
- OFFSET_TO_PTR (offset, p_infile),
- p_infile->size - offset, be_verbose);
-
- /* Final size for new image. */
- p_outfile->size = DST_TO_OFFSET ();
-
- /* Now patch up remaining file-relative offsets. */
- section = IMAGE_FIRST_SECTION (nt_header);
- dst_section = IMAGE_FIRST_SECTION (dst_nt_header);
-
-#define ADJUST_OFFSET(var) \
- do { \
- if ((var) != 0) \
- (var) = relocate_offset ((var), nt_header, dst_nt_header); \
- } while (0)
-
- dst_nt_header->OptionalHeader.SizeOfInitializedData = 0;
- dst_nt_header->OptionalHeader.SizeOfUninitializedData = 0;
- for (i = 0; i < dst_nt_header->FileHeader.NumberOfSections; i++)
- {
- /* Recompute data sizes for completeness. */
- if (dst_section[i].Characteristics & IMAGE_SCN_CNT_INITIALIZED_DATA)
- dst_nt_header->OptionalHeader.SizeOfInitializedData +=
- ROUND_UP (dst_section[i].Misc.VirtualSize, dst_nt_header->OptionalHeader.FileAlignment);
- else if (dst_section[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
- dst_nt_header->OptionalHeader.SizeOfUninitializedData +=
- ROUND_UP (dst_section[i].Misc.VirtualSize, dst_nt_header->OptionalHeader.FileAlignment);
-
- ADJUST_OFFSET (dst_section[i].PointerToLinenumbers);
- }
-
- ADJUST_OFFSET (dst_nt_header->FileHeader.PointerToSymbolTable);
-
- /* Update offsets in debug directory entries. */
- {
- IMAGE_DATA_DIRECTORY debug_dir =
- dst_nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG];
- PIMAGE_DEBUG_DIRECTORY debug_entry;
-
- section = rva_to_section (debug_dir.VirtualAddress, dst_nt_header);
- if (section)
- {
- debug_entry = (PIMAGE_DEBUG_DIRECTORY)
- (RVA_TO_OFFSET (debug_dir.VirtualAddress, section) + p_outfile->file_base);
- debug_dir.Size /= sizeof (IMAGE_DEBUG_DIRECTORY);
-
- for (i = 0; i < debug_dir.Size; i++, debug_entry++)
- ADJUST_OFFSET (debug_entry->PointerToRawData);
- }
- }
-}
-
-
-int
-main (int argc, char **argv)
-{
- file_data in_file, out_file;
- char out_filename[MAX_PATH], in_filename[MAX_PATH];
- unsigned long size;
- PIMAGE_DOS_HEADER dos_header;
- PIMAGE_NT_HEADERS nt_header;
-
-#define OLD_NAME argv[1]
-#define NEW_NAME argv[2]
-#define SECTION_NAME argv[3]
-#define SECTION_SIZE argv[4]
-
- strcpy (in_filename, OLD_NAME);
- strcpy (out_filename, NEW_NAME);
-
- printf ("Dumping from %s\n", in_filename);
- printf (" to %s\n", out_filename);
-
- /* Open the undumped executable file. */
- if (!open_input_file (&in_file, in_filename))
- {
- printf ("Failed to open %s (%d)...bailing.\n",
- in_filename, GetLastError ());
- exit (1);
- }
- dos_header = (PIMAGE_DOS_HEADER) in_file.file_base;
- nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header + dos_header->e_lfanew);
- /* Allow for expansion due to increasing file align to section align.
- We can overestimate here, since close_file_data will update the
- size exactly. */
- size = in_file.size
- + nt_header->OptionalHeader.SectionAlignment
- * nt_header->FileHeader.NumberOfSections;
- if (!open_output_file (&out_file, out_filename, size))
- {
- printf ("Failed to open %s (%d)...bailing.\n",
- out_filename, GetLastError ());
- exit (1);
- }
-
- copy_executable_and_add_section (&in_file, &out_file,
- SECTION_NAME,
- atoi (SECTION_SIZE) * 1024 * 1024);
-
- /* Patch up header fields; profiler is picky about this. */
- {
- HANDLE hImagehelp = LoadLibrary ("imagehlp.dll");
- DWORD_PTR headersum;
- DWORD_PTR checksum;
-
- dos_header = (PIMAGE_DOS_HEADER) out_file.file_base;
- nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header + dos_header->e_lfanew);
-
- nt_header->OptionalHeader.CheckSum = 0;
-// nt_header->FileHeader.TimeDateStamp = time (NULL);
-// dos_header->e_cp = size / 512;
-// nt_header->OptionalHeader.SizeOfImage = size;
-
- pfnCheckSumMappedFile = (void *) GetProcAddress (hImagehelp, "CheckSumMappedFile");
- if (pfnCheckSumMappedFile)
- {
-// nt_header->FileHeader.TimeDateStamp = time (NULL);
- pfnCheckSumMappedFile (out_file.file_base,
- out_file.size,
- &headersum,
- &checksum);
- nt_header->OptionalHeader.CheckSum = checksum;
- }
- FreeLibrary (hImagehelp);
- }
-
- close_file_data (&in_file);
- close_file_data (&out_file);
-
- return 0;
-}
-
-/* eof */
-
HCoop / bpt / emacs.git / commitdiff