public void HPSC_DiscardNodes()
{
Given_Image32(
0x0010000,
"55 8B EC a1 32 12 1a 12 5D c3");
Given_x86_32();
Given_RewriterHost();
Given_NoImportedProcedures();
When_DisassembleProcedure();
var hps = new BlockConflictResolver(program, CreateScanResults(proc.Cfg), proc.IsValidAddress, host.Object);
hps.ResolveBlockConflicts(new[] { proc.BeginAddress });
var sExp =
#region Expected
@"l00010000: // pred:
push ebp
l00010001: // pred: l00010000
mov ebp,esp
l00010003: // pred: l00010001
mov eax,[121A1232]
l00010008: // pred: l00010003
pop ebp
l00010009: // pred: l00010008
ret
";
#endregion
AssertBlocks(sExp, proc.Cfg);
}
public void HPSC_Conflicts_1()
{
Given_Image32(
0x0010000,
"55 89 e5 c3");
Given_x86_32();
Given_RewriterHost();
When_DisassembleProcedure();
var conflicts = BlockConflictResolver.BuildConflictGraph(proc.Cfg.Nodes);
var sExp =
@"(l00010001-l00010002)
(l00010002-l00010003)
";
AssertConflicts(sExp, conflicts);
}
public void HPSC_TrickyProc()
{
Given_Image32(0x0010000, TrickyProc);
program.SegmentMap.AddSegment(new ImageSegment(
"code",
new MemoryArea(Address.Ptr32(0x11750000), new byte[100]),
AccessMode.ReadExecute));
Given_x86_32();
Given_RewriterHost();
Given_NoImportedProcedures();
mr.ReplayAll();
When_DisassembleProcedure();
var hps = new BlockConflictResolver(program, CreateScanResults(proc.Cfg), proc.IsValidAddress, host);
hps.BlockConflictResolution(proc.BeginAddress);
var sExp =
#region Expected
@"l00010000: // pred:
push ebp
l00010001: // pred: l00010000
mov ebp,esp
l00010003: // pred: l00010001
call 11750008
l0001000A: // pred:
cmp al,00
l0001000C: // pred: l0001000A
jnz 00010014
l0001000E: // pred: l0001000C
mov al,00
l00010010: // pred: l0001000E
jmp 00010019
l00010014: // pred: l0001000C
mov eax,[01740000]
l00010019: // pred: l00010010 l00010014
mov esp,ebp
l0001001B: // pred: l00010019
pop ebp
l0001001C: // pred: l0001001B
ret
";
#endregion
AssertBlocks(sExp, proc.Cfg);
}
public void HPSC_Conflicts_2()
{
Given_Image32(
0x0010000,
"55 E8 00 00 00 38 c3");
Given_x86_32();
Given_RewriterHost();
mr.ReplayAll();
When_DisassembleProcedure();
var conflicts = BlockConflictResolver.BuildConflictGraph(proc.Cfg.Nodes);
var sExp =
@"(l00010001-l00010002)
(l00010001-l00010003)
(l00010001-l00010004)
(l00010001-l00010005)
(l00010002-l00010003)
(l00010003-l00010004)
(l00010004-l00010005)
(l00010005-l00010006)
";
AssertConflicts(sExp, conflicts);
}
private void ResolveBlockConflicts(ScanResults sr)
{
var hps = new BlockConflictResolver(null, sr, null, null);
hps.ResolveBlockConflicts(new Address[0]);
}
private void RemoveConflictingBlocks(params uint[] wProcStarts)
{
var hs = new BlockConflictResolver(null, sr, null, null);
hs.ResolveBlockConflicts(wProcStarts.Select(w => Address.Ptr32(w)));
}