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81 lines
2.0 KiB
81 lines
2.0 KiB
/*
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* Copyright 2002-2019 Intel Corporation.
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*
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* This software is provided to you as Sample Source Code as defined in the accompanying
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* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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* section 1.L.
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*
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* This software and the related documents are provided as is, with no express or implied
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* warranties, other than those that are expressly stated in the License.
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*/
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/*
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* This tool is meant to be run on the "resetsegv.c" application. It tests
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* that PIN_SafeCopy() works even if the application sets up a SEGV handler
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* with SA_RESETHAND.
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*/
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#include <iostream>
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#include <cstdlib>
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#include "pin.H"
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static VOID OnImage(IMG, VOID *);
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static VOID DoSafeCopy();
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static void OnExit(INT32, VOID *);
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int main(int argc, char * argv[])
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{
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PIN_Init(argc, argv);
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PIN_InitSymbols();
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IMG_AddInstrumentFunction(OnImage, 0);
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PIN_AddFiniFunction(OnExit, 0);
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PIN_StartProgram();
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return 0;
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}
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static VOID OnImage(IMG img, VOID *)
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{
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#if defined(TARGET_MAC)
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RTN rtn = RTN_FindByName(img, "_MakeSegv");
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#else
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RTN rtn = RTN_FindByName(img, "MakeSegv");
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#endif
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if (RTN_Valid(rtn))
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{
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RTN_Open(rtn);
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RTN_InsertCall(rtn, IPOINT_BEFORE, AFUNPTR(DoSafeCopy), IARG_END);
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RTN_Close(rtn);
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}
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}
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static VOID DoSafeCopy()
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{
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// Before the bug was fixed in Pin, the first SafeCopy() would work, but would
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// reset the internal SEGV handler (because of SA_RESETHAND). This caused the
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// second SafeCopy() to fail. That's why we call SafeCopy() twice.
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//
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int word;
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size_t sz = PIN_SafeCopy(&word, 0, sizeof(word));
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if (sz != 0)
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{
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std::cerr << "SafeCopy should fail (1)\n";
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std::exit(1);
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}
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sz = PIN_SafeCopy(&word, 0, sizeof(word));
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if (sz != 0)
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{
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std::cerr << "SafeCopy should fail (2)\n";
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std::exit(1);
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}
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std::exit(0);
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}
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static VOID OnExit(INT32, VOID *)
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{
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std::cerr << "Did not attempt SafeCopy\n";
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std::exit(1);
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}
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