void ParseSection32(uint iSection, uint protection, SegmentMap segmentMap)
{
var abSectname = rdr.ReadBytes(16);
var abSegname = rdr.ReadBytes(16);
if (!rdr.TryReadUInt32(out uint uAddr) ||
!rdr.TryReadUInt32(out uint size) ||
!rdr.TryReadUInt32(out uint offset) ||
!rdr.TryReadUInt32(out uint align) ||
!rdr.TryReadUInt32(out uint reloff) ||
!rdr.TryReadUInt32(out uint nreloc) ||
!rdr.TryReadUInt32(out uint flags) ||
!rdr.TryReadUInt32(out uint reserved1) ||
!rdr.TryReadUInt32(out uint reserved2))
{
throw new BadImageFormatException("Could not read Mach-O section.");
}
var sectionName = GetAsciizString(abSectname, 0);
var segmentName = GetAsciizString(abSegname, 0);
Debug.Print(" Found section '{0}' in segment '{1}, addr = 0x{2:X}, size = 0x{3:X}.",
sectionName,
segmentName,
uAddr,
size);
Debug.Print(" reloff: {0:X8} nreloc: {1:X} flags {2:X}", reloff, nreloc, flags);
Debug.Print(" reserv1: {0:X8} reserv2: {1:X8}", reserved1, reserved2);
var addr = Address.Ptr32(uAddr);
var bytes = rdr.CreateNew(this.ldr.RawImage, offset);
var name = string.Format("{0},{1}", segmentName, sectionName);
AddSection(segmentMap, size, flags, reserved1, reserved2, protection, addr, bytes, name);
}
void parseSection32(uint protection, SegmentMap segmentMap)
{
var abSectname = rdr.ReadBytes(16);
var abSegname = rdr.ReadBytes(16);
uint addr;
uint size;
uint offset;
uint align;
uint reloff;
uint nreloc;
uint flags;
uint reserved1;
uint reserved2;
if (!rdr.TryReadUInt32(out addr) ||
!rdr.TryReadUInt32(out size) ||
!rdr.TryReadUInt32(out offset) ||
!rdr.TryReadUInt32(out align) ||
!rdr.TryReadUInt32(out reloff) ||
!rdr.TryReadUInt32(out nreloc) ||
!rdr.TryReadUInt32(out flags) ||
!rdr.TryReadUInt32(out reserved1) ||
!rdr.TryReadUInt32(out reserved2))
{
throw new BadImageFormatException("Could not read Mach-O section.");
}
var sectionName = GetAsciizString(abSectname);
var segmentName = GetAsciizString(abSegname);
Debug.Print("Found section '{0}' in segment '{1}, addr = 0x{2:X}, size = 0x{3:X}.",
sectionName,
segmentName,
addr,
size);
AccessMode am = 0;
if ((protection & VM_PROT_READ) != 0)
{
am |= AccessMode.Read;
}
if ((protection & VM_PROT_WRITE) != 0)
{
am |= AccessMode.Write;
}
if ((protection & VM_PROT_EXECUTE) != 0)
{
am |= AccessMode.Execute;
}
var bytes = rdr.CreateNew(this.ldr.RawImage, offset);
var mem = new MemoryArea(
Address.Ptr32(addr),
bytes.ReadBytes((uint)size));
var imageSection = new ImageSegment(
string.Format("{0},{1}", segmentName, sectionName),
mem,
am);
//imageSection.setBss((section.flags & SECTION_TYPE) == S_ZEROFILL);
//if (!imageSection.isBss()) {
// auto pos = source_->pos();
// if (!source_->seek(section.offset)) {
// throw ParseError("Could not seek to the beginning of the section's content.");
// }
// auto bytes = source_->read(section.size);
// if (checked_cast<uint>(bytes.size()) != section.size) {
// log_.warning("Could not read all the section's content.");
// } else {
// imageSection->setContent(std::move(bytes));
// }
// source_->seek(pos);
//}
segmentMap.AddSegment(imageSection);
}
