bindexplib: Import original implementation from CERN

Download the original implementation provided by root.cern.ch with the
following session:

$ wget https://raw.githubusercontent.com/gordonwatts/root-vc-port/f0ee59af/build/win/bindexplib/bindexplib.cxx
$ sha1sum bindexplib.cxx
fa6efafb2c58a0644bd0f6a56fe02ee0d55c7fcd  bindexplib.cxx
$ sed -i 's/ *$//;s/'$'\t''/        /' bindexplib.cxx
This commit is contained in:
Bill Hoffman 2015-06-19 16:12:43 -04:00 committed by Brad King
parent 2fd05f411b
commit 65086ad778
1 changed files with 739 additions and 0 deletions

739
Source/bindexplib.cxx Normal file
View File

@ -0,0 +1,739 @@
/*
*----------------------------------------------------------------------
* Program: dumpexts.exe
* Author: Gordon Chaffee
*
* History: The real functionality of this file was written by
* Matt Pietrek in 1993 in his pedump utility. I've
* modified it to dump the externals in a bunch of object
* files to create a .def file.
*
* Notes: Visual C++ puts an underscore before each exported symbol.
* This file removes them. I don't know if this is a problem
* this other compilers. If _MSC_VER is defined,
* the underscore is removed. If not, it isn't. To get a
* full dump of an object file, use the -f option. This can
* help determine the something that may be different with a
* compiler other than Visual C++.
* ======================================
* Corrections (Axel 2006-04-04):
* Conversion to C++. Mostly.
*
* Extension (Axel 2006-03-15)
* As soon as an object file contains an /EXPORT directive (which
* is generated by the compiler when a symbol is declared as
* declspec(dllexport)) no to-be-exported symbols are printed,
* as the linker will see these directives, and if those directives
* are present we only export selectively (i.e. we trust the
* programmer).
*
* ======================================
* ======================================
* Corrections (Valery Fine 23/02/98):
*
* The "(vector) deleting destructor" MUST not be exported
* To recognize it the following test are introduced:
* "@@UAEPAXI@Z" scalar deleting dtor
* "@@QAEPAXI@Z" vector deleting dtor
* "AEPAXI@Z" vector deleting dtor with thunk adjustor
* ======================================
* Corrections (Valery Fine 12/02/97):
*
* It created a wrong EXPORTS for the global pointers and constants.
* The Section Header has been involved to discover the missing information
* Now the pointers are correctly supplied supplied with "DATA" descriptor
* the constants with no extra descriptor.
*
* Corrections (Valery Fine 16/09/96):
*
* It didn't work for C++ code with global variables and class definitons
* The DumpExternalObject function has been introduced to generate .DEF file
*
* Author: Valery Fine 16/09/96 (E-mail: fine@vxcern.cern.ch)
*----------------------------------------------------------------------
*/
static char sccsid[] = "@(#) winDumpExts.c 1.2 95/10/03 15:27:34";
#include <windows.h>
#include <stdio.h>
#include <string>
#include <fstream>
/*
*----------------------------------------------------------------------
* GetArgcArgv --
*
* Break up a line into argc argv
*----------------------------------------------------------------------
*/
int
GetArgcArgv(std::string &s, char **argv)
{
int quote = 0;
int argc = 0;
std::string::iterator bp = s.begin();
while (1) {
while (isspace(*bp)) {
bp++;
}
if (*bp == '\n' || *bp == '\0') {
*bp = '\0';
return argc;
}
if (*bp == '\"') {
quote = 1;
bp++;
}
argv[argc++] = &(*bp);
while (*bp != '\0') {
if (quote) {
if (*bp == '\"') {
quote = 0;
*bp = '\0';
bp++;
break;
}
bp++;
continue;
}
if (isspace(*bp)) {
*bp = '\0';
bp++;
break;
}
bp++;
}
}
}
/*
* The names of the first group of possible symbol table storage classes
*/
char * SzStorageClass1[] = {
"NULL","AUTOMATIC","EXTERNAL","STATIC","REGISTER","EXTERNAL_DEF","LABEL",
"UNDEFINED_LABEL","MEMBER_OF_STRUCT","ARGUMENT","STRUCT_TAG",
"MEMBER_OF_UNION","UNION_TAG","TYPE_DEFINITION","UNDEFINED_STATIC",
"ENUM_TAG","MEMBER_OF_ENUM","REGISTER_PARAM","BIT_FIELD"
};
/*
* The names of the second group of possible symbol table storage classes
*/
char * SzStorageClass2[] = {
"BLOCK","FUNCTION","END_OF_STRUCT","FILE","SECTION","WEAK_EXTERNAL"
};
/*
*----------------------------------------------------------------------
* GetSZStorageClass --
*
* Given a symbol storage class value, return a descriptive
* ASCII string
*----------------------------------------------------------------------
*/
PSTR
GetSZStorageClass(BYTE storageClass)
{
if ( storageClass <= IMAGE_SYM_CLASS_BIT_FIELD )
return SzStorageClass1[storageClass];
else if ( (storageClass >= IMAGE_SYM_CLASS_BLOCK)
&& (storageClass <= IMAGE_SYM_CLASS_WEAK_EXTERNAL) )
return SzStorageClass2[storageClass-IMAGE_SYM_CLASS_BLOCK];
else
return "???";
}
void AddHex(std::string& buf, long val, bool caps=false)
{
buf += "0x";
size_t len=buf.length();
while (val) {
char hex = (char)(val & 16);
val = val >> 4;
if (hex<10) hex+='0';
else if (caps) hex+='A'-10;
else hex+='a'-10;
buf.insert(len, hex, 1);
}
}
/*
*----------------------------------------------------------------------
* GetSectionName --
*
* Used by DumpSymbolTable, it gives meaningful names to
* the non-normal section number.
*
* Results:
* A name is returned in buffer
*----------------------------------------------------------------------
*/
void
GetSectionName(PIMAGE_SYMBOL pSymbolTable, std::string& buffer)
{
DWORD section;
section = pSymbolTable->SectionNumber;
switch ( (SHORT)section )
{
case IMAGE_SYM_UNDEFINED: if (pSymbolTable->Value) buffer += "COMM"; else buffer += "UNDEF"; break;
case IMAGE_SYM_ABSOLUTE: buffer += "ABS "; break;
case IMAGE_SYM_DEBUG: buffer += "DEBUG"; break;
default: AddHex(buffer, section, true);
}
}
/*
*----------------------------------------------------------------------
* GetSectionCharacteristics --
*
* Converts the Characteristics field of IMAGE_SECTION_HEADER
* to print.
*
* Results:
* A definiton of the section symbol type
*----------------------------------------------------------------------
*/
void
GetSectionCharacteristics(PIMAGE_SECTION_HEADER pSectionHeaders, int nSectNum, std::string &buffer)
{
DWORD SectChar;
std::string TempBuf;
buffer.clear();
if (nSectNum > 0) {
SectChar = pSectionHeaders[nSectNum-1].Characteristics;
buffer = " ";
AddHex(buffer, SectChar);
if (SectChar & IMAGE_SCN_CNT_CODE) buffer += " Code";
else if (SectChar & IMAGE_SCN_CNT_INITIALIZED_DATA) buffer += " Init. data";
else if (SectChar & IMAGE_SCN_CNT_UNINITIALIZED_DATA ) buffer += " UnInit data";
else buffer += " Unknow type";
if (SectChar & IMAGE_SCN_MEM_READ) {
buffer += " Read";
if (SectChar & IMAGE_SCN_MEM_WRITE)
buffer += " and Write";
else buffer += " only";
}
else if (SectChar & IMAGE_SCN_MEM_WRITE)
buffer +=" Write only";
}
}
/*
*----------------------------------------------------------------------
* DumpSymbolTable --
*
* Dumps a COFF symbol table from an EXE or OBJ. We only use
* it to dump tables from OBJs.
*----------------------------------------------------------------------
*/
void
DumpSymbolTable(PIMAGE_SYMBOL pSymbolTable, PIMAGE_SECTION_HEADER pSectionHeaders, FILE *fout, unsigned cSymbols)
{
unsigned i;
PSTR stringTable;
std::string sectionName;
std::string sectionCharacter;
int iSectNum;
fprintf(fout, "Symbol Table - %X entries (* = auxillary symbol)\n",
cSymbols);
fprintf(fout,
"Indx Name Value Section cAux Type Storage Character\n"
"---- -------------------- -------- ---------- ----- ------- -------- ---------\n");
/*
* The string table apparently starts right after the symbol table
*/
stringTable = (PSTR)&pSymbolTable[cSymbols];
for ( i=0; i < cSymbols; i++ ) {
fprintf(fout, "%04X ", i);
if ( pSymbolTable->N.Name.Short != 0 )
fprintf(fout, "%-20.8s", pSymbolTable->N.ShortName);
else
fprintf(fout, "%-20s", stringTable + pSymbolTable->N.Name.Long);
fprintf(fout, " %08X", pSymbolTable->Value);
iSectNum = pSymbolTable->SectionNumber;
GetSectionName(pSymbolTable, sectionName);
fprintf(fout, " sect:%s aux:%X type:%02X st:%s",
sectionName.c_str(),
pSymbolTable->NumberOfAuxSymbols,
pSymbolTable->Type,
GetSZStorageClass(pSymbolTable->StorageClass) );
GetSectionCharacteristics(pSectionHeaders,iSectNum,sectionCharacter);
fprintf(fout," hc: %s \n",sectionCharacter.c_str());
#if 0
if ( pSymbolTable->NumberOfAuxSymbols )
DumpAuxSymbols(pSymbolTable);
#endif
/*
* Take into account any aux symbols
*/
i += pSymbolTable->NumberOfAuxSymbols;
pSymbolTable += pSymbolTable->NumberOfAuxSymbols;
pSymbolTable++;
}
}
/*
*----------------------------------------------------------------------
* DumpExternals --
*
* Dumps a COFF symbol table from an EXE or OBJ. We only use
* it to dump tables from OBJs.
*----------------------------------------------------------------------
*/
void
DumpExternals(PIMAGE_SYMBOL pSymbolTable, FILE *fout, unsigned cSymbols)
{
unsigned i;
PSTR stringTable;
std::string symbol;
/*
* The string table apparently starts right after the symbol table
*/
stringTable = (PSTR)&pSymbolTable[cSymbols];
for ( i=0; i < cSymbols; i++ ) {
if (pSymbolTable->SectionNumber > 0 && pSymbolTable->Type == 0x20) {
if (pSymbolTable->StorageClass == IMAGE_SYM_CLASS_EXTERNAL) {
if (pSymbolTable->N.Name.Short != 0) {
symbol = "";
symbol.insert(0, (const char *)(pSymbolTable->N.ShortName), 8);
} else {
symbol = stringTable + pSymbolTable->N.Name.Long;
}
std::string::size_type posAt = symbol.find('@');
if (posAt != std::string::npos) symbol.erase(posAt);
#ifndef _MSC_VER
fprintf(fout, "\t%s\n", symbol.c_str());
#else
fprintf(fout, "\t%s\n", symbol.c_str()+1);
#endif
}
}
/*
* Take into account any aux symbols
*/
i += pSymbolTable->NumberOfAuxSymbols;
pSymbolTable += pSymbolTable->NumberOfAuxSymbols;
pSymbolTable++;
}
}
/*
+ * Utility func, strstr with size
+ */
const char* StrNStr(const char* start, const char* find, size_t &size) {
size_t len;
const char* hint;
if (!start || !find || !size) {
size = 0;
return 0;
}
len = strlen(find);
while (hint = (const char*) memchr(start, find[0], size-len+1)) {
size -= (hint - start);
if (!strncmp(hint, find, len))
return hint;
start = hint + 1;
}
size = 0;
return 0;
}
/*
*----------------------------------------------------------------------
* HaveExportedObjects --
*
* Returns >0 if export directives (declspec(dllexport)) exist.
*
*----------------------------------------------------------------------
*/
int
HaveExportedObjects(PIMAGE_FILE_HEADER pImageFileHeader, PIMAGE_SECTION_HEADER pSectionHeaders, FILE *fout)
{
static int fImportFlag = 0; /* The status is nor defined yet */
WORD i;
size_t size;
char foundExports;
const char * rawdata;
PIMAGE_SECTION_HEADER pDirectivesSectionHeader;
if (fImportFlag) return 1;
i = 0;
foundExports = 0;
pDirectivesSectionHeader = 0;
for(i = 0; i < pImageFileHeader->NumberOfSections && !pDirectivesSectionHeader; i++)
if (!strncmp((const char*)&pSectionHeaders[i].Name[0], ".drectve",8))
pDirectivesSectionHeader = &pSectionHeaders[i];
if (!pDirectivesSectionHeader) return 0;
rawdata=(const char*)pImageFileHeader+pDirectivesSectionHeader->PointerToRawData;
if (!pDirectivesSectionHeader->PointerToRawData || !rawdata) return 0;
size = pDirectivesSectionHeader->SizeOfRawData;
const char* posImportFlag = rawdata;
while ((posImportFlag = StrNStr(posImportFlag, " /EXPORT:", size))) {
const char* lookingForDict = posImportFlag + 9;
if (!strncmp(lookingForDict, "_G__cpp_",8) ||
!strncmp(lookingForDict, "_G__set_cpp_",12)) {
posImportFlag = lookingForDict;
continue;
}
const char* lookingForDATA = posImportFlag + 9;
while (*(++lookingForDATA) && *lookingForDATA != ' ');
lookingForDATA -= 5;
// ignore DATA exports
if (strncmp(lookingForDATA, ",DATA", 5)) break;
posImportFlag = lookingForDATA + 5;
}
fImportFlag = (int)posImportFlag;
return fImportFlag;
}
/*
*----------------------------------------------------------------------
* DumpExternalsObjects --
*
* Dumps a COFF symbol table from an EXE or OBJ. We only use
* it to dump tables from OBJs.
*----------------------------------------------------------------------
*/
void
DumpExternalsObjects(PIMAGE_SYMBOL pSymbolTable, PIMAGE_SECTION_HEADER pSectionHeaders,
FILE *fout, unsigned cSymbols, int fort)
{
unsigned i;
PSTR stringTable;
std::string symbol;
DWORD SectChar;
static int fImportFlag = -1; /* The status is nor defined yet */
/*
* The string table apparently starts right after the symbol table
*/
stringTable = (PSTR)&pSymbolTable[cSymbols];
for ( i=0; i < cSymbols; i++ ) {
if (pSymbolTable->SectionNumber > 0 && ( pSymbolTable->Type == 0x20 || pSymbolTable->Type == 0x0)) {
if (pSymbolTable->StorageClass == IMAGE_SYM_CLASS_EXTERNAL) {
/*
* The name of the Function entry points
*/
if (pSymbolTable->N.Name.Short != 0) {
symbol = "";
symbol.insert(0, (const char *)pSymbolTable->N.ShortName, 8);
} else {
symbol = stringTable + pSymbolTable->N.Name.Long;
}
while (isspace(symbol[0])) symbol.erase(0,1);
#ifdef _MSC_VER
if (symbol[0] == '_') symbol.erase(0,1);
if (fort) {
std::string::size_type posAt = symbol.find('@');
if (posAt != std::string::npos) symbol.erase(posAt);
}
#endif
if (fImportFlag) {
fImportFlag = 0;
fprintf(fout,"EXPORTS \n");
}
/*
Check whether it is "Scalar deleting destructor" and
"Vector deleting destructor"
*/
/*
if (!strstr(s,"@@UAEPAXI@Z") && !strstr(s,"@@QAEPAXI@Z") &&
!strstr(s,"@AEPAXI@Z") && !strstr(s,"AEPAXI@Z") &&
!strstr(s,"real@"))
*/
const char *scalarPrefix = "??_G";
const char *vectorPrefix = "??_E";
if (symbol.compare(0, 4, scalarPrefix) &&
symbol.compare(0, 4, vectorPrefix) &&
symbol.find("real@") == std::string::npos)
{
SectChar = pSectionHeaders[pSymbolTable->SectionNumber-1].Characteristics;
if (!pSymbolTable->Type && (SectChar & IMAGE_SCN_MEM_WRITE)) {
// Read only (i.e. constants) must be excluded
fprintf(fout, "\t%s \t DATA\n", symbol.c_str());
} else {
if ( pSymbolTable->Type || !(SectChar & IMAGE_SCN_MEM_READ)) {
fprintf(fout, "\t%s\n", symbol.c_str());
} else {
// printf(" strange symbol: %s \n",s);
}
}
}
}
}
else if (pSymbolTable->SectionNumber == IMAGE_SYM_UNDEFINED && !pSymbolTable->Type && 0){
/*
* The IMPORT global variable entry points
*/
if (pSymbolTable->StorageClass == IMAGE_SYM_CLASS_EXTERNAL) {
symbol = stringTable + pSymbolTable->N.Name.Long;
while (isspace(symbol[0])) symbol.erase(0,1);
if (symbol[0] == '_') symbol.erase(0,1);
if (!fImportFlag) {
fImportFlag = 1;
fprintf(fout,"IMPORTS \n");
}
fprintf(fout, "\t%s DATA \n", symbol.c_str()+1);
}
}
/*
* Take into account any aux symbols
*/
i += pSymbolTable->NumberOfAuxSymbols;
pSymbolTable += pSymbolTable->NumberOfAuxSymbols;
pSymbolTable++;
}
}
/*
*----------------------------------------------------------------------
* DumpObjFile --
*
* Dump an object file--either a full listing or just the exported
* symbols.
*----------------------------------------------------------------------
*/
void
DumpObjFile(PIMAGE_FILE_HEADER pImageFileHeader, FILE *fout, int full, int fort)
{
PIMAGE_SYMBOL PCOFFSymbolTable;
PIMAGE_SECTION_HEADER PCOFFSectionHeaders;
DWORD_PTR COFFSymbolCount;
PCOFFSymbolTable = (PIMAGE_SYMBOL)
((DWORD_PTR)pImageFileHeader + pImageFileHeader->PointerToSymbolTable);
COFFSymbolCount = pImageFileHeader->NumberOfSymbols;
PCOFFSectionHeaders = (PIMAGE_SECTION_HEADER)
((DWORD_PTR)pImageFileHeader +
IMAGE_SIZEOF_FILE_HEADER +
pImageFileHeader->SizeOfOptionalHeader);
if (full) {
DumpSymbolTable(PCOFFSymbolTable, PCOFFSectionHeaders, fout, COFFSymbolCount);
} else {
int haveExports = HaveExportedObjects(pImageFileHeader, PCOFFSectionHeaders, fout);
if (!haveExports)
DumpExternalsObjects(PCOFFSymbolTable, PCOFFSectionHeaders, fout, COFFSymbolCount, fort);
}
}
/*
*----------------------------------------------------------------------
* DumpFile --
*
* Open up a file, memory map it, and call the appropriate
* dumping routine
*----------------------------------------------------------------------
*/
void
DumpFile(LPSTR filename, FILE *fout, int full, int fort)
{
HANDLE hFile;
HANDLE hFileMapping;
LPVOID lpFileBase;
PIMAGE_DOS_HEADER dosHeader;
hFile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
if (hFile == INVALID_HANDLE_VALUE) {
fprintf(stderr, "Couldn't open file with CreateFile()\n");
return;
}
hFileMapping = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
if (hFileMapping == 0) {
CloseHandle(hFile);
fprintf(stderr, "Couldn't open file mapping with CreateFileMapping()\n");
return;
}
lpFileBase = MapViewOfFile(hFileMapping, FILE_MAP_READ, 0, 0, 0);
if (lpFileBase == 0) {
CloseHandle(hFileMapping);
CloseHandle(hFile);
fprintf(stderr, "Couldn't map view of file with MapViewOfFile()\n");
return;
}
dosHeader = (PIMAGE_DOS_HEADER)lpFileBase;
if (dosHeader->e_magic == IMAGE_DOS_SIGNATURE) {
#if 0
DumpExeFile( dosHeader );
#else
fprintf(stderr, "File is an executable. I don't dump those.\n");
return;
#endif
}
/* Does it look like a i386 COFF OBJ file??? */
else if (
((dosHeader->e_magic == IMAGE_FILE_MACHINE_I386) || (dosHeader->e_magic == IMAGE_FILE_MACHINE_AMD64))
&& (dosHeader->e_sp == 0)
) {
/*
* The two tests above aren't what they look like. They're
* really checking for IMAGE_FILE_HEADER.Machine == i386 (0x14C)
* and IMAGE_FILE_HEADER.SizeOfOptionalHeader == 0;
*/
DumpObjFile((PIMAGE_FILE_HEADER) lpFileBase, fout, full, fort);
} else {
printf("unrecognized file format\n");
}
UnmapViewOfFile(lpFileBase);
CloseHandle(hFileMapping);
CloseHandle(hFile);
}
void
main(int argc, char **argv)
{
std::string cmdline;
int i, arg;
FILE *fout;
int full = 0;
int fort = 0;
char *dllname = "";
char *outfile = NULL;
if (argc < 3) {
Usage:
fprintf(stderr, "Usage: %s ?-o outfile? ?-f(ull)? <dllname> <object filenames> ..\n", argv[0]);
exit(1);
}
arg = 1;
while (argv[arg][0] == '-') {
if (strcmp(argv[arg], "--") == 0) {
arg++;
break;
} else if (strcmp(argv[arg], "-f") == 0) {
full = 1;
} else if (strcmp(argv[arg], "-x") == 0) {
fort = 1;
} else if (strcmp(argv[arg], "-o") == 0) {
arg++;
if (arg == argc) {
goto Usage;
}
outfile = argv[arg];
}
arg++;
}
if (arg == argc) {
goto Usage;
}
if (outfile) {
fout = fopen(outfile, "w+");
if (fout == NULL) {
fprintf(stderr, "Unable to open \'%s\' for writing:\n",
argv[arg]);
perror("");
exit(1);
}
} else {
fout = stdout;
}
if (! full) {
dllname = argv[arg];
arg++;
if (arg == argc) {
goto Usage;
}
fprintf(fout, "LIBRARY %s\n", dllname);
#ifndef _X86_
fprintf(fout, "CODE PRELOAD MOVEABLE DISCARDABLE\n");
fprintf(fout, "DATA PRELOAD MOVEABLE MULTIPLE\n\n");
#endif
}
for (; arg < argc; arg++) {
WIN32_FIND_DATA FindFileData;
HANDLE SearchFile;
if (argv[arg][0] == '@') {
std::ifstream fargs(&argv[arg][1]);
if (!fargs) {
fprintf(stderr, "Unable to open \'%s\' for reading:\n",
argv[arg]);
perror("");
exit(1);
}
char *fargv[1000];
for (i = 0; i < arg; i++) {
cmdline += argv[i];
fargv[i] = argv[i];
}
std::string line;
std::getline(fargs, line);
cmdline += line;
fprintf(stderr, "%s\n", line.c_str());
i += GetArgcArgv(line, &fargv[i]);
argc = i;
argv = fargv;
}
/*
* Argument can contain the wildcard names
*/
SearchFile = FindFirstFile(argv[arg],&FindFileData);
if (SearchFile == INVALID_HANDLE_VALUE){
fprintf(stderr, "Unable to find \'%s\' for reading:\n",
argv[arg]);
exit(1);
}
else {
/*
* Since WIN32_FIND_DATA has no path information one has to extract it himself.
*/
TCHAR *filename = argv[arg];
TCHAR path[2048];
size_t i = strlen(filename);
i--;
while( filename[i] != '\\' && filename[i] != '/' && i >=0) i--;
do
{
if (i >= 0) strncpy( path, filename, i+1); /* Generate the 'path' info */
path[i+1] = '\0';
DumpFile(strcat(path, FindFileData.cFileName), fout, full, fort);
} while (FindNextFile(SearchFile,&FindFileData));
FindClose(SearchFile);
}
}
exit(0);
}