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Code Issues Releases Wiki Activity

GP-2157 Marshaling refactor. Decompiler side.

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This commit is contained in:
caheckman 2022-05-17 16:15:21 -04:00
parent 672c1f11e2
commit d8c10bf229
97 changed files with 5313 additions and 3733 deletions
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72
Ghidra/Features/Decompiler/src/decompile/cpp/op.cc
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@ -16,6 +16,8 @@
#include "op.hh"
#include "funcdata.hh"
ElementId ELEM_IOP = ElementId("iop",110);
const string IopSpace::NAME = "iop";
/// Constructor for the \b iop space.
@ -56,13 +58,13 @@ void IopSpace::printRaw(ostream &s,uintb offset) const
void IopSpace::saveXml(ostream &s) const
{
throw LowlevelError("Should never save iop space to XML");
throw LowlevelError("Should never encode iop space to stream");
}
void IopSpace::restoreXml(const Element *el)
void IopSpace::decode(Decoder &decoder)
{
throw LowlevelError("Should never restore iop space from XML");
throw LowlevelError("Should never decode iop space from stream");
}
/// Construct a completely unattached PcodeOp. Space is reserved for input and output Varnodes
@ -385,50 +387,62 @@ void PcodeOp::printDebug(ostream &s) const
printRaw(s);
}
/// Write a description including: the opcode name, the sequence number, and separate xml tags
/// Encode a description including: the opcode name, the sequence number, and separate elements
/// providing a reference number for each input and output Varnode
/// \param s is the stream to write to
void PcodeOp::saveXml(ostream &s) const
/// \param encoder is the stream encoder
void PcodeOp::encode(Encoder &encoder) const
{
s << "<op";
a_v_i(s,"code",(int4)code());
s << ">\n";
start.saveXml(s);
s << '\n';
if (output==(Varnode *)0)
s << "<void/>\n";
else
s << "<addr ref=\"0x" << hex << output->getCreateIndex() << "\"/>\n";
encoder.openElement(ELEM_OP);
encoder.writeSignedInteger(ATTRIB_CODE, (int4)code());
start.encode(encoder);
if (output==(Varnode *)0) {
encoder.openElement(ELEM_VOID);
encoder.closeElement(ELEM_VOID);
}
else {
encoder.openElement(ELEM_ADDR);
encoder.writeUnsignedInteger(ATTRIB_REF, output->getCreateIndex());
encoder.closeElement(ELEM_ADDR);
}
for(int4 i=0;i<inrefs.size();++i) {
const Varnode *vn = getIn(i);
if (vn == (const Varnode *)0)
s << "<void/>\n";
if (vn == (const Varnode *)0) {
encoder.openElement(ELEM_VOID);
encoder.closeElement(ELEM_VOID);
}
else if (vn->getSpace()->getType()==IPTR_IOP) {
if ((i==1)&&(code()==CPUI_INDIRECT)) {
PcodeOp *indop = PcodeOp::getOpFromConst(vn->getAddr());
s << "<iop";
a_v_u(s,"value",indop->getSeqNum().getTime());
s << "/>\n";
encoder.openElement(ELEM_IOP);
encoder.writeUnsignedInteger(ATTRIB_VALUE, indop->getSeqNum().getTime());
encoder.closeElement(ELEM_IOP);
}
else {
encoder.openElement(ELEM_VOID);
encoder.closeElement(ELEM_VOID);
}
else
s << "<void/>\n";
}
else if (vn->getSpace()->getType()==IPTR_CONSTANT) {
if ((i==0)&&((code()==CPUI_STORE)||(code()==CPUI_LOAD))) {
AddrSpace *spc = vn->getSpaceFromConst();
s << "<spaceid";
a_v(s,"name",spc->getName());
s << "/>\n";
encoder.openElement(ELEM_SPACEID);
encoder.writeString(ATTRIB_NAME, spc->getName());
encoder.closeElement(ELEM_SPACEID);
}
else {
encoder.openElement(ELEM_ADDR);
encoder.writeUnsignedInteger(ATTRIB_REF, vn->getCreateIndex());
encoder.closeElement(ELEM_ADDR);
}
else
s << "<addr ref=\"0x" << hex << vn->getCreateIndex() << "\"/>\n";
}
else {
s << "<addr ref=\"0x" << hex << vn->getCreateIndex() << "\"/>\n";
encoder.openElement(ELEM_ADDR);
encoder.writeUnsignedInteger(ATTRIB_REF, vn->getCreateIndex());
encoder.closeElement(ELEM_ADDR);
}
}
s << "</op>\n";
encoder.closeElement(ELEM_OP);
}
/// Assuming all the inputs to this op are constants, compute the constant result of evaluating