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dyninst/dyninst-10.1.0-aarch-regs.patch

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--- dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/BPatch_addressSpace.C.orig 2019-05-16 14:40:05.000000000 -0400
+++ dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/BPatch_addressSpace.C 2019-11-06 10:20:08.567523510 -0500
--- BPatch_addressSpace.C.orig 2019-05-16 14:40:05.000000000 -0400
+++ BPatch_addressSpace.C 2019-11-15 18:10:31.186122654 -0500
@@ -1050,5 +1050,2 @@
return true;
-
- regs = registers_;
- return true;
}
--- dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/emit-aarch64.C.orig 2019-05-16 14:40:05.000000000 -0400
+++ dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/emit-aarch64.C 2019-11-06 10:20:08.567523510 -0500
@@ -276,9 +276,2 @@
- if (register_num == REG_SP) {
- insnCodeGen::generateAddSubImmediate(gen, insnCodeGen::Add, 0,
- TRAMP_FRAME_SIZE_64, destination, REG_SP, true);
-
- return;
- }
-
if (src->spilledState == registerSlot::unspilled)
@@ -293,3 +286,3 @@
// its on the stack so load it.
- insnCodeGen::restoreRegister(gen, destination, offset + (register_num * gen.width()),
+ insnCodeGen::restoreRegister(gen, destination, offset + (src->encoding() * gen.width()),
insnCodeGen::Offset);
@@ -298 +291,7 @@
+bool EmitterAARCH64::emitMoveRegToReg(Register src, Register dest, codeGen &gen)
+{
+ insnCodeGen::generateMove(gen, dest, src);
+ return true;
+}
+
--- dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/emit-aarch64.h.orig 2019-05-16 14:40:05.000000000 -0400
+++ dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/emit-aarch64.h 2019-11-06 10:20:08.567523510 -0500
@@ -107,6 +107,3 @@
- virtual bool emitMoveRegToReg(Register, Register, codeGen &) {
- assert(0);
- return 0;
- }
+ virtual bool emitMoveRegToReg(Register, Register, codeGen &);
--- dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/inst-aarch64.C.orig 2019-05-16 14:40:05.000000000 -0400
+++ dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/inst-aarch64.C 2019-11-06 10:20:08.567523510 -0500
@@ -108,2 +108,4 @@
registers.push_back(new registerSlot(r30, "r30", true, registerSlot::liveAlways, registerSlot::GPR));
+ // SP is r31, but also could be considered special. But now it's being added as GPR
+ registers.push_back(new registerSlot(sp, "r31", true, registerSlot::liveAlways, registerSlot::GPR));
@@ -111,3 +113,3 @@
registers.push_back(new registerSlot(lr, "lr", true, registerSlot::liveAlways, registerSlot::SPR));
- registers.push_back(new registerSlot(sp, "sp", true, registerSlot::liveAlways, registerSlot::SPR));
+ //registers.push_back(new registerSlot(sp, "sp", true, registerSlot::liveAlways, registerSlot::SPR));
registers.push_back(new registerSlot(pstate, "nzcv", true, registerSlot::liveAlways, registerSlot::SPR));
@@ -183,9 +185,16 @@
registerSlot *reg = theRegSpace->GPRs()[idx];
- // We always save FP and LR for stack walking out of instrumentation
- if (reg->liveState == registerSlot::live || reg->number == REG_FP || reg->number == REG_LR) {
+ // We always save FP and LR for stack walking out of instrumentation
+ //if (reg->liveState == registerSlot::live || reg->number == REG_FP || reg->number == REG_LR) {
int offset_from_sp = offset + (reg->encoding() * gen.width());
- insnCodeGen::saveRegister(gen, reg->number, offset_from_sp);
+ if(reg->number != registerSpace::sp)
+ insnCodeGen::saveRegister(gen, reg->number, offset_from_sp);
+ else{
+ // mov SP to x0
+ insnCodeGen::generateAddSubImmediate(gen, insnCodeGen::Add, 0,
+ TRAMP_FRAME_SIZE_64, REG_SP, 0, true);
+ insnCodeGen::saveRegister(gen, 0, offset_from_sp);
+ }
theRegSpace->markSavedRegister(reg->number, offset_from_sp);
ret++;
- }
+ //}
}
@@ -283,2 +292,4 @@
if(reg->liveState == registerSlot::spilled) {
+ if(reg->number == registerSpace::sp)
+ continue;
//#sasha this should be GPRSIZE_64 and not gen.width
@@ -602,4 +613,2 @@
{
- //#sasha This function implementation is experimental.
-
if (op != callOp) {
@@ -623,4 +632,2 @@
vector<int> savedRegs;
-
- // save r0-r7
for(size_t id = 0; id < gen.rs()->numGPRs(); id++)
@@ -653,2 +660,6 @@
assert(reg!=REG_NULL);
+
+ // mark reg offLimits so getScratchRegister won't use it
+ registerSlot *regS = gen.rs()->GPRs()[id];
+ regS->offLimits = true;
}
@@ -691,3 +702,2 @@
- // r7-r0
for (signed int ui = savedRegs.size()-1; ui >= 0; ui--) {
@@ -697,2 +707,9 @@
+ // Making operand's reg not offLimits again
+ for(size_t id = 0; id < operands.size(); id++)
+ {
+ registerSlot *reg = gen.rs()->GPRs()[id];
+ reg->offLimits = false;
+ }
+
return 0;
@@ -1426,4 +1443,53 @@
bool EmitterAARCH64Stat::emitPLTCall(func_instance *callee, codeGen &gen) {
- assert(0); //Not implemented
- return emitPLTCommon(callee, true, gen);
+ /*
+ Address dest = getInterModuleFuncAddr(callee, gen);
+ //Register scr = gen.rs()->getScratchRegister(gen);
+ //Register lr = gen.rs()->getScratchRegister(gen);
+ //Address pc = emitMovePCToReg(scr, gen);
+
+ Address varOffset = dest - gen.currAddr();
+ //printf("VarOffset = %d\n", varOffset);
+ //emitLoadRelative(lr, varOffset, scr, gen.width(), gen);
+
+ insnCodeGen::generateBranch(gen, gen.currAddr(), dest, true);
+
+ return true;
+ */
+
+
+ Address dest = getInterModuleFuncAddr(callee, gen);
+ Register scr = gen.rs()->getScratchRegister(gen);
+ Register lr = gen.rs()->getScratchRegister(gen);
+ //Register scr = gen.rs()->getRegByName("r2");
+ //Register lr = gen.rs()->getRegByName("r3");
+ emitMovePCToReg(scr, gen);
+
+ Address varOffset = dest - gen.currAddr() + 4;
+ //printf("VarOffset = %d\n", varOffset);
+ emitLoadRelative(lr, varOffset, scr, gen.width(), gen);
+ insnCodeGen::generateMemAccess(gen, insnCodeGen::Load, lr, lr, 0, 8, insnCodeGen::Offset);
+
+ // indirect branch
+ instruction branchInsn;
+ branchInsn.clear();
+
+ //Set bits which are 0 for both BR and BLR
+ INSN_SET(branchInsn, 0, 4, 0);
+ INSN_SET(branchInsn, 10, 15, 0);
+
+ //Set register
+ INSN_SET(branchInsn, 5, 9, lr);
+
+ //Set other bits. Basically, these are the opcode bits.
+ //The only difference between BR and BLR is that bit 21 is 1 for BLR.
+ INSN_SET(branchInsn, 16, 31, BRegOp);
+ INSN_SET(branchInsn, 21, 21, 1);
+ insnCodeGen::generate(gen, branchInsn);
+ //insnCodeGen::generateBranch(gen, gen.currAddr(), lr, true);
+ //insnCodeGen::generateBranch(gen, gen.currAddr(), gen.currAddr() +varOffset, true);
+
+ return true;
+
+ //assert(0); //Not implemented
+ //return emitPLTCommon(callee, true, gen);
}
@@ -1431,4 +1497,81 @@
bool EmitterAARCH64Stat::emitPLTJump(func_instance *callee, codeGen &gen) {
- assert(0); //Not implemented
- return emitPLTCommon(callee, false, gen);
+ /*
+ Address dest = getInterModuleFuncAddr(callee, gen);
+ //Register scr = gen.rs()->getScratchRegister(gen);
+ //Register lr = gen.rs()->getScratchRegister(gen);
+ Register scr = gen.rs()->getRegByName("r2");
+ Register lr = gen.rs()->getRegByName("r3");
+ //Address pc = emitMovePCToReg(scr, gen);
+
+ Address varOffset = dest - gen.currAddr();
+ //printf("VarOffset = %d\n", varOffset);
+ emitLoadRelative(lr, varOffset, scr, gen.width(), gen);
+ insnCodeGen::generateMemAccess(gen, insnCodeGen::Load, lr, lr, 0, 8, insnCodeGen::Offset);
+
+ insnCodeGen::generateBranch(gen, gen.currAddr(), lr, false);
+
+ return true;
+ */
+
+ /*
+ Address dest = getInterModuleFuncAddr(callee, gen);
+ Register scr = gen.rs()->getScratchRegister(gen);
+ Register lr = gen.rs()->getScratchRegister(gen);
+ Address pc = emitMovePCToReg(scr, gen);
+
+ Address varOffset = dest - pc;
+ printf("VarOffset = %d\n", varOffset);
+ emitLoadRelative(lr, varOffset, scr, gen.width(), gen);
+
+ insnCodeGen::generateBranch(gen, gen.currAddr(), lr, false);
+ return true;
+ */
+
+ /*
+ Address dest = getInterModuleFuncAddr(callee, gen);
+ Register scr = gen.rs()->getScratchRegister(gen);
+ Register lr = gen.rs()->getScratchRegister(gen);
+ Address varOffset = dest - gen.currAddr();
+ emitLoadRelative(lr, varOffset, scr, gen.width(), gen);
+ insnCodeGen::generateBranch(gen, gen.currAddr(), gen.currAddr() +varOffset, false);
+
+ return true;
+ */
+
+
+ Address dest = getInterModuleFuncAddr(callee, gen);
+ Register scr = gen.rs()->getScratchRegister(gen);
+ Register lr = gen.rs()->getScratchRegister(gen);
+ //Register scr = gen.rs()->getRegByName("r2");
+ //Register lr = gen.rs()->getRegByName("r3");
+ emitMovePCToReg(scr, gen);
+
+ Address varOffset = dest - gen.currAddr() + 4;
+ //printf("VarOffset = %d\n", varOffset);
+ emitLoadRelative(lr, varOffset, scr, gen.width(), gen);
+ insnCodeGen::generateMemAccess(gen, insnCodeGen::Load, lr, lr, 0, 8, insnCodeGen::Offset);
+
+ // indirect branch
+ instruction branchInsn;
+ branchInsn.clear();
+
+ //Set bits which are 0 for both BR and BLR
+ INSN_SET(branchInsn, 0, 4, 0);
+ INSN_SET(branchInsn, 10, 15, 0);
+
+ //Set register
+ INSN_SET(branchInsn, 5, 9, lr);
+
+ //Set other bits. Basically, these are the opcode bits.
+ //The only difference between BR and BLR is that bit 21 is 1 for BLR.
+ INSN_SET(branchInsn, 16, 31, BRegOp);
+ INSN_SET(branchInsn, 21, 21, 0);
+ insnCodeGen::generate(gen, branchInsn);
+ //insnCodeGen::generateBranch(gen, gen.currAddr(), lr, true);
+ //insnCodeGen::generateBranch(gen, gen.currAddr(), gen.currAddr() +varOffset, true);
+
+ return true;
+
+ //assert(0); //Not implemented
+ //return emitPLTCommon(callee, false, gen);
}
--- dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/inst-aarch64.h.orig 2019-05-16 14:40:05.000000000 -0400
+++ dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/inst-aarch64.h 2019-11-06 10:20:08.567523510 -0500
@@ -74,3 +74,3 @@
//TODO Fix for ARM
-#define GPRSAVE_64 (31*GPRSIZE_64)
+#define GPRSAVE_64 (32*GPRSIZE_64)
#define FPRSAVE_64 (32*FPRSIZE_64)
--- dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/registerSpace.C.orig 2019-05-16 14:40:05.000000000 -0400
+++ dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/registerSpace.C 2019-11-06 10:20:08.567523510 -0500
@@ -110,2 +110,4 @@
#elif defined(arch_aarch64)
+ if(number == registerSpace::sp)
+ return REG_SP;
switch (type) {
@@ -342,3 +344,3 @@
- reg->markUsed(true);
+ //reg->markUsed(true);
gen.markRegDefined(reg->number);
--- dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/dynProcess.C.orig
+++ dyninst-10.1.0/dyninst-10.1.0/dyninstAPI/src/dynProcess.C
@@ -3243,25 +3243,13 @@ bool PCProcess::continueSyncRPCThreads() {
}
void PCProcess::addTrap(Address from, Address to, codeGen &gen) {
- map<Address, Breakpoint::ptr>::iterator breakIter =
- installedCtrlBrkpts.find(from);
-
- if( breakIter != installedCtrlBrkpts.end() ) {
- if( !pcProc_->rmBreakpoint(from, breakIter->second) ) {
- // Oops?
- }
- installedCtrlBrkpts.erase(breakIter);
- }
-
- Breakpoint::ptr newBreak = Breakpoint::newTransferBreakpoint(to);
- newBreak->setSuppressCallbacks(true);
-
- if( !pcProc_->addBreakpoint(from, newBreak) ) {
- // Oops?
- }
-
- installedCtrlBrkpts.insert(make_pair(from, newBreak));
- gen.invalidate();
+ gen.invalidate();
+ gen.allocate(4);
+ gen.setAddrSpace(this);
+ gen.setAddr(from);
+ insnCodeGen::generateTrap(gen);
+ trapMapping.addTrapMapping(from, to, true);
+ springboard_cerr << "Generated springboard trap " << hex << from << "->" << to << dec << endl;
}
void PCProcess::removeTrap(Address from) {
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