From 5f919da12aebb1d47e78e212ef542c7b12a853f4 Mon Sep 17 00:00:00 2001
From: Jason Hiser <jdhiser@gmail.com>
Date: Fri, 7 Sep 2018 01:14:59 +0000
Subject: [PATCH] updates to set USEFP or NOFP
Former-commit-id: 3a528c97bb34e178d59e412bba93367cf7182a64
---
tools/rida/rida.cpp | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/tools/rida/rida.cpp b/tools/rida/rida.cpp
index 98b478624..30b1dfc3b 100644
--- a/tools/rida/rida.cpp
+++ b/tools/rida/rida.cpp
@@ -344,11 +344,31 @@ class CreateFunctions_t
const auto size=max.second-min.first;
cout<<"Function "<<dec<<i++<<" is "<<hex<<min.first<<" "<<dec<<max.second-min.first<<endl;
+ const auto usefp=getUseFp(scc);
- outfile<<hex<<"\t"<<min.first<<"\t"<<dec<<size<<"\tFUNC GLOBAL\t"<<funcNames[scc]<<endl;
+ outfile<<hex<<"\t"<<min.first<<"\t"<<dec<<size<<"\tFUNC GLOBAL\t"<<funcNames[scc]<<" "<< usefp << endl;
doBelongTos(scc);
}
}
+
+ string getUseFp(const RangeSet_t scc)
+ {
+ assert(scc.begin()!=scc.end());
+ const auto startAddr=scc.begin()->first;
+ const auto fde=ehp->findFDE(startAddr);
+ if(!fde) return "NOFP";
+ const auto &ehprogram=fde->getProgram();
+ const auto ehprogramInstructions=ehprogram.getInstructions();
+
+ const auto def_cfa_rbp_it = find_if(ALLOF(*ehprogramInstructions), [](const shared_ptr<EHProgramInstruction_t> insn)
+ {
+ assert(insn);
+ const auto &insnBytes=insn->getBytes();
+ // 0xd, 0x6 is "def_cfa_register rbp"
+ return insnBytes==EHProgramInstructionByteVector_t({(uint8_t)0xd,(uint8_t)0x6});
+ });
+ return def_cfa_rbp_it == ehprogramInstructions->end() ? "NOFP" : "USEFP";
+ }
};
--
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