public void Sm_Creation()
{
SegmentMap sm = new SegmentMap(addrBase,
new ImageSegment("", new MemoryArea(addrBase, img), AccessMode.ReadWriteExecute));
sm.AddSegment(Address.SegPtr(0x8000, 2), "", AccessMode.ReadWrite, 10);
sm.AddSegment(Address.SegPtr(0x8000, 3), "", AccessMode.ReadWrite, 10);
sm.AddSegment(Address.SegPtr(0x8000, 0), "", AccessMode.ReadWrite, 10);
// Verify
var sExp =
@"8000:0000 00000002 rwx
8000:0002 00000001 rw-
8000:0003 0000001D rw- ";
AssertMap(sExp, sm);
}
public void Sm_AddSegment()
{
var map = new SegmentMap(addrBase);
var mem = new MemoryArea(addrBase, new byte[0x4000]);
var seg = new ImageSegment("8100", Address.SegPtr(0x8100, 0), mem, AccessMode.ReadWriteExecute);
map.AddSegment(seg);
Assert.AreEqual(0x3000, seg.Size);
}
public void Sm_AddNamedSegment()
{
var mem = new MemoryArea(Address.SegPtr(0x0B00, 0), new byte[0x2000]);
SegmentMap segmentMap = new SegmentMap(mem.BaseAddress,
new ImageSegment("base", mem, AccessMode.ReadWriteExecute));
segmentMap.AddSegment(Address.SegPtr(0xC00, 0), "0C00", AccessMode.ReadWrite, 6000);
ImageSegment s = segmentMap.Segments.Values.ElementAt(1);
Assert.AreEqual("0C00", s.Name);
Assert.AreEqual(0x1000, s.Size);
}
public void Sm_Overlaps()
{
SegmentMap im = new SegmentMap(Address.SegPtr(0x8000, 0));
var mem = new MemoryArea(im.BaseAddress, new byte[40]);
var seg = new ImageSegment("8000", Address.SegPtr(0x8000, 10), mem, AccessMode.ReadWrite);
im.AddSegment(seg);
}
void parseSection64(uint protection, SegmentMap segmentMap)
{
var abSectname = rdr.ReadBytes(16);
var abSegname = rdr.ReadBytes(16);
ulong addr;
ulong size;
uint offset;
uint align;
uint reloff;
uint nreloc;
uint flags;
uint reserved1;
uint reserved2;
uint reserved3;
if (!rdr.TryReadUInt64(out addr) ||
!rdr.TryReadUInt64(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) ||
!rdr.TryReadUInt32(out reserved3))
{
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.Ptr64(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);
//}
//sections_.push_back(imageSection.get());
//image_->addSection(std::move(imageSection));
segmentMap.AddSegment(imageSection);
}
public void Im_RemoveItem_DoNotMergeDisjointItems()
{
var mem = new MemoryArea(addrBase, new byte[0x0100]);
var segmentMap = new SegmentMap(addrBase,
new ImageSegment("", mem, AccessMode.ReadWriteExecute));
var codeAddr = addrBase;
var dataAddr = addrBase + 0x1000;
var textAddr = addrBase + 0x2000;
segmentMap.AddSegment(codeAddr, "code", AccessMode.ReadWrite, 0x100);
segmentMap.AddSegment(dataAddr, "data", AccessMode.ReadWrite, 0x4);
segmentMap.AddSegment(textAddr, "text", AccessMode.ReadWrite, 0x100);
var map = segmentMap.CreateImageMap();
CreateImageMapItem(map, PrimitiveType.Int32, addrBase + 0x1000);
map.Dump();
CheckImageMapTypes(map, "<unknown>", "int32", "<unknown>");
CheckImageMapAddresses(map, "8000:0000", "8000:1000", "8000:2000");
CheckImageMapSizes(map, 0x100, 0x4, 0x100);
map.RemoveItem(codeAddr);
CheckImageMapTypes(map, "<unknown>", "int32", "<unknown>");
CheckImageMapAddresses(map, "8000:0000", "8000:1000", "8000:2000");
CheckImageMapSizes(map, 0x100, 0x4, 0x100);
map.RemoveItem(dataAddr);
CheckImageMapTypes(map, "<unknown>", "<unknown>", "<unknown>");
CheckImageMapAddresses(map, "8000:0000", "8000:1000", "8000:2000");
CheckImageMapSizes(map, 0x100, 0x4, 0x100);
map.RemoveItem(textAddr);
CheckImageMapTypes(map, "<unknown>", "<unknown>", "<unknown>");
CheckImageMapAddresses(map, "8000:0000", "8000:1000", "8000:2000");
CheckImageMapSizes(map, 0x100, 0x4, 0x100);
}
public override SegmentMap LoadImageBytes(IPlatform platform, byte[] rawImage, Address addrPreferred)
{
var segMap = AllocateMemoryAreas(
ProgramHeaders64
.Where(p => IsLoadable(p.p_vaddr, p.p_type))
.Select(p => Tuple.Create(
platform.MakeAddressFromLinear(p.p_vaddr),
(uint)p.p_pmemsz)));
foreach (var ph in ProgramHeaders64)
{
Debug.Print("ph: addr {0:X8} filesize {0:X8} memsize {0:X8}", ph.p_vaddr, ph.p_filesz, ph.p_pmemsz);
if (!IsLoadable(ph.p_vaddr, ph.p_type))
continue;
var vaddr = platform.MakeAddressFromLinear(ph.p_vaddr);
MemoryArea mem;
segMap.TryGetLowerBound(vaddr, out mem);
if (ph.p_filesz > 0)
Array.Copy(
rawImage,
(long)ph.p_offset, mem.Bytes,
vaddr - mem.BaseAddress, (long)ph.p_filesz);
}
var segmentMap = new SegmentMap(addrPreferred);
foreach (var section in Sections)
{
if (section.Name == null || section.Address == null)
continue;
MemoryArea mem;
if (segMap.TryGetLowerBound(section.Address, out mem) &&
section.Address < mem.EndAddress)
{
AccessMode mode = AccessModeOf(section.Flags);
var seg = segmentMap.AddSegment(new ImageSegment(
section.Name,
section.Address,
mem, mode)
{
Size = (uint)section.Size
});
seg.Designer = CreateRenderer64(section);
}
else
{
//$TODO: warn
}
}
segmentMap.DumpSections();
return segmentMap;
}