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GP-2358 Packed protocol for decompiler marshaling

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This commit is contained in:
caheckman 2022-07-26 15:36:05 -04:00
parent 6a1a649213
commit 79c3508f54
119 changed files with 4238 additions and 2207 deletions
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33
Ghidra/Features/Decompiler/src/decompile/cpp/ghidra_translate.cc
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@ -46,14 +46,14 @@ const VarnodeData &GhidraTranslate::getRegister(const string &nm) const
map<string,VarnodeData>::const_iterator iter = nm2addr.find(nm);
if (iter != nm2addr.end())
return (*iter).second;
XmlDecode decoder(glb);
PackedDecode decoder(glb);
try {
if (!glb->getRegister(nm,decoder)) // Ask Ghidra client about the register
throw LowlevelError("No register named "+nm);
}
catch(XmlError &err) {
catch(DecoderError &err) {
ostringstream errmsg;
errmsg << "Error parsing XML response for query of register: " << nm;
errmsg << "Error decoding response for query of register: " << nm;
errmsg << " -- " << err.explain;
throw LowlevelError(errmsg.str());
}
@ -100,9 +100,10 @@ int4 GhidraTranslate::oneInstruction(PcodeEmit &emit,const Address &baseaddr) co
{
int4 offset;
uint1 *doc;
PackedDecode decoder(glb);
bool success;
try {
doc = glb->getPcodePacked(baseaddr); // Request p-code for one instruction
success = glb->getPcode(baseaddr,decoder); // Request p-code for one instruction
}
catch(JavaError &err) {
ostringstream s;
@ -110,34 +111,26 @@ int4 GhidraTranslate::oneInstruction(PcodeEmit &emit,const Address &baseaddr) co
baseaddr.printRaw(s);
throw LowlevelError(s.str());
}
if (doc == (uint1 *)0) {
if (!success) {
ostringstream s;
s << "No pcode could be generated at address: " << baseaddr.getShortcut();
baseaddr.printRaw(s);
throw BadDataError(s.str());
}
uintb val;
const uint1 *ptr = PcodeEmit::unpackOffset(doc+1,val);
offset = (int4)val;
if (*doc == PcodeEmit::unimpl_tag) {
int4 el = decoder.openElement();
offset = decoder.readSignedInteger(ATTRIB_OFFSET);
if (el == ELEM_UNIMPL) {
ostringstream s;
s << "Instruction not implemented in pcode:\n ";
baseaddr.printRaw(s);
delete [] doc;
throw UnimplError(s.str(),offset);
}
int4 spcindex = (int4)(*ptr++ - 0x20);
AddrSpace *spc = getSpace(spcindex);
uintb instoffset;
ptr = PcodeEmit::unpackOffset(ptr,instoffset);
Address pc(spc,instoffset);
Address pc = Address::decode(decoder);
while(*ptr == PcodeEmit::op_tag)
ptr = emit.restorePackedOp(pc,ptr,this);
delete [] doc;
while(decoder.peekElement() != 0)
emit.decodeOp(pc,decoder);
return offset;
}