void
VirtualTableSection::printOutVirtualFunctionTableInformation ( VirtualFunctionTableAddress vTableAddress )
{
ROSE_ASSERT(virtualFunctionTable != NULL);
size_t section_address_base = virtualFunctionTable->get_mapped_preferred_rva();
size_t offset = vTableAddress - section_address_base;
size_t size = virtualFunctionTable->get_size();
ROSE_ASSERT(offset < size);
printf ("In printOutVirtualFunctionTableInformation(%p): offset = %p (size = %p) \n",(void*)vTableAddress,(void*)offset,(void*)size);
printf ("START -- Virtual function table: \n");
SgAsmGenericHeader *hdr = virtualFunctionTable->get_header();
SgAsmGenericFormat::ByteOrder sex = hdr->get_sex();
size_t wordsize = hdr->get_word_size();
size_t virtualTableSize = (size-offset) / wordsize;
printf ("size = %zu offset = %zu wordsize = %zu virtualTableSize = %zu \n",size,offset,wordsize,virtualTableSize);
for (size_t i=0; i < virtualTableSize; i++)
{
uint64_t functionPointer; /*type must support 64-bit specimen pointers in a 32-bit ROSE library*/
// printf ("i = %zu \n",i);
switch (wordsize)
{
case 4:
{
uint32_t ptr_disk;
// virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
// virtualFunctionTable->read_content_local(i*wordsize, &ptr_disk, sizeof ptr_disk);
virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
functionPointer = SgAsmExecutableFileFormat::disk_to_host(sex, ptr_disk);
break;
}
case 8:
{
uint64_t ptr_disk;
// virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
// virtualFunctionTable->read_content_local(i*wordsize, &ptr_disk, sizeof ptr_disk);
virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
functionPointer = SgAsmExecutableFileFormat::disk_to_host(sex, ptr_disk);
break;
}
default:
ROSE_ASSERT(!"unsupported word size");
}
string sectionName;
SgAsmElfSection* asmElfSection = getSection(project,functionPointer);
if (asmElfSection != NULL)
{
sectionName = asmElfSection->get_name()->get_string();
}
else
{
sectionName = "NOT CONTAINED IN EXECUTABLE";
// At the first sign of a pointer that is not in the executable then quit, this should be the end of the table.
// Alternatively it appears that the end of the table has a code 0x4231 (for the first table).
break;
}
printf ("Pointer 0x%"PRIx64" is to data in the %s section \n",functionPointer,sectionName.c_str());
}
printf ("END -- Virtual function table: \n");
}
// Constructor
VirtualFunctionTable::VirtualFunctionTable ( SgProject* project, SgAsmElfSection* virtualFunctionTable, size_t vTableAddress )
: virtualFunctionTablePosition(vTableAddress)
{
printf ("Building virtual function table for position %p \n",(void*)virtualFunctionTablePosition);
// Get the boundaries of the section where the virtual function tables are located.
ROSE_ASSERT(virtualFunctionTable != NULL);
size_t section_address_base = virtualFunctionTable->get_mapped_preferred_rva();
// Compute the offset for the input virtual function table into the section.
size_t offset = vTableAddress - section_address_base;
// This is the upper bound on the size of the table (stay within the section)
size_t size = virtualFunctionTable->get_size();
ROSE_ASSERT(offset < size);
printf ("In printOutVirtualFunctionTableInformation(%p): offset = %p (size = %p) \n",(void*)vTableAddress,(void*)offset,(void*)size);
printf ("START -- Virtual function table: \n");
// Get the architecture specifici information required to the raw data in the section.
SgAsmGenericHeader *hdr = virtualFunctionTable->get_header();
SgAsmGenericFormat::ByteOrder sex = hdr->get_sex();
size_t wordsize = hdr->get_word_size();
size_t virtualTableSize = (size-offset) / wordsize;
printf ("size = %zu offset = %zu wordsize = %zu virtualTableSize = %zu \n",size,offset,wordsize,virtualTableSize);
for (size_t i=0; i < virtualTableSize; i++)
{
uint64_t functionPointer; /*type must support 64-bit specimen pointers in a 32-bit ROSE library*/
// printf ("i = %zu \n",i);
switch (wordsize)
{
case 4:
{
uint32_t ptr_disk;
// virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
// virtualFunctionTable->read_content_local(i*wordsize, &ptr_disk, sizeof ptr_disk);
virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
functionPointer = SgAsmExecutableFileFormat::disk_to_host(sex, ptr_disk);
break;
}
case 8:
{
uint64_t ptr_disk;
// virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
// virtualFunctionTable->read_content_local(i*wordsize, &ptr_disk, sizeof ptr_disk);
virtualFunctionTable->read_content_local(offset+i*wordsize, &ptr_disk, sizeof ptr_disk);
functionPointer = SgAsmExecutableFileFormat::disk_to_host(sex, ptr_disk);
break;
}
default:
ROSE_ASSERT(!"unsupported word size");
}
string sectionName;
SgAsmElfSection* asmElfSection = getSection(project,functionPointer);
if (asmElfSection != NULL)
{
sectionName = asmElfSection->get_name()->get_string();
}
else
{
sectionName = "NOT CONTAINED IN EXECUTABLE";
// At the first sign of a pointer that is not in the executable then quit, this should be the end of the table.
// Alternatively it appears that the end of the table has a code 0x4231 (for the first table).
break;
}
printf ("Pointer 0x%"PRIx64" is to data in the %s section \n",functionPointer,sectionName.c_str());
string name = "virtual_function_" + StringUtility::numberToString(i);
VirtualFunction* virtualFunction = new VirtualFunction(name,functionPointer);
ROSE_ASSERT(virtualFunction != NULL);
virtualFunctionList.push_back(virtualFunction);
}
printf ("END -- Virtual function table: \n");
#if 0
printf ("Exiting in VirtualFunctionTable constructor \n");
ROSE_ASSERT(false);
#endif
}