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233 lines
6.7 KiB
233 lines
6.7 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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/*! @file
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Checks probe mode with functions relocation
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*/
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#include <stdlib.h>
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#include "pin.H"
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#include <iostream>
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#include <fstream>
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#include "tool_macros.h"
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using std::cerr;
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using std::endl;
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using std::cout;
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/* ===================================================================== */
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/* Global Variables */
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/* ===================================================================== */
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typedef void (*FUNCPTR)();
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typedef int (*FUNCPTR1a)();
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static void (*pf_r1)();
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static int (*pf_r1a)();
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static void (*pf_r2)();
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/* ===================================================================== */
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INT32 Usage()
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{
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cerr <<
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"This pin tool replaces relocatable_1() and relocatable_2()\n"
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"\n";
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cerr << KNOB_BASE::StringKnobSummary();
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cerr << endl;
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return -1;
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}
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/* ===================================================================== */
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void R1()
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{
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cout << "R1: calling original relocatable_1()" << endl;
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return (pf_r1)();
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}
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int R1a()
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{
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cout << "R1a: calling original relocatable_1a()" << endl;
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return (pf_r1a)();
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}
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void R2()
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{
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cout << "R2: calling original relocatable_2()" << endl;
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return (pf_r2)();
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}
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void R3(FUNCPTR fptr)
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{
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cout << "R3: calling original relocatable_3()" << endl;
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return (fptr)();
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}
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/* ===================================================================== */
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VOID CheckRelocatable(const char *fname, IMG img, FUNCPTR *origFptr, AFUNPTR replacementFunc)
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{
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RTN rtn = RTN_FindByName(img, fname);
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if ( RTN_Valid(rtn))
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{
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//fprintf(stderr, "Attach to prs %d and debug %s\n", PIN_GetPid(), fname);
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//getchar();
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if (RTN_IsSafeForProbedReplacement(rtn))
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{
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cout << fname << " routine should not be probed w/o relocation" << endl;
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exit(-1);
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}
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if (RTN_IsSafeForProbedReplacementEx(rtn, PROBE_MODE_ALLOW_RELOCATION))
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{
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// Save the function pointer that points to the new location of
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// the entry point of the original exit in this image.
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//
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*origFptr = (FUNCPTR)RTN_ReplaceProbedEx( rtn, PROBE_MODE_ALLOW_RELOCATION, replacementFunc);
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cout << "ImageLoad: Replaced " << fname << " in:" << IMG_Name(img) << endl;
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}
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else
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{
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cout << "ImageLoad: Pin does not want to replace " << fname << " in:" << IMG_Name(img) << endl;
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exit(-1);
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}
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}
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}
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VOID CheckRelocatable1a(const char *fname, IMG img, FUNCPTR1a *origFptr, AFUNPTR replacementFunc)
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{
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RTN rtn = RTN_FindByName(img, fname);
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if ( RTN_Valid(rtn))
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{
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//fprintf(stderr, "Attach to prs %d and debug %s\n", PIN_GetPid(), fname);
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//getchar();
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if (RTN_IsSafeForProbedReplacement(rtn))
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{
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cout << fname << " routine should not be probed w/o relocation" << endl;
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exit(-1);
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}
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if (RTN_IsSafeForProbedReplacementEx(rtn, PROBE_MODE_ALLOW_RELOCATION))
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{
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// Save the function pointer that points to the new location of
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// the entry point of the original exit in this image.
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//
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*origFptr = (FUNCPTR1a)RTN_ReplaceProbedEx( rtn, PROBE_MODE_ALLOW_RELOCATION, replacementFunc);
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cout << "ImageLoad: Replaced " << fname << " in:" << IMG_Name(img) << endl;
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}
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else
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{
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cout << "ImageLoad: Pin does not want to replace " << fname << " in:" << IMG_Name(img) << endl;
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exit(-1);
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}
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}
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}
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VOID CheckRelocatableSig(const char *fname, IMG img, AFUNPTR replacementFunc)
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{
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RTN rtn = RTN_FindByName(img, fname);
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if ( RTN_Valid(rtn))
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{
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//fprintf(stderr, "Attach to prs %d and debug %s\n", PIN_GetPid(), fname);
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//getchar();
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if (RTN_IsSafeForProbedReplacement(rtn))
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{
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cout << fname << " routine should not be probed w/o relocation" << endl;
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exit(-1);
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}
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if (RTN_IsSafeForProbedReplacementEx(rtn, PROBE_MODE_ALLOW_RELOCATION))
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{
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PROTO proto = PROTO_Allocate( PIN_PARG(void), CALLINGSTD_DEFAULT,
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fname, PIN_PARG_END() );
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RTN_ReplaceSignatureProbedEx(rtn, PROBE_MODE_ALLOW_RELOCATION, replacementFunc,
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IARG_PROTOTYPE, proto, IARG_ORIG_FUNCPTR, IARG_END);
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cout << "ImageLoad: Replaced " << fname << " in:" << IMG_Name(img) << endl;
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}
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else
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{
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cout << "ImageLoad: Pin does not want to replace " << fname << " in:" << IMG_Name(img) << endl;
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exit(-1);
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}
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}
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}
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VOID CheckNonRelocatable(const char *fname, IMG img)
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{
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RTN rtn = RTN_FindByName(img, fname);
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if ( RTN_Valid(rtn))
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{
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//fprintf(stderr, "Attach to prs %d and debug %s\n", PIN_GetPid(), fname);
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//getchar();
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if (RTN_IsSafeForProbedReplacement(rtn))
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{
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cout << fname << " routine should not be probed" << endl;
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exit(-1);
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}
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if (RTN_IsSafeForProbedReplacementEx(rtn, PROBE_MODE_ALLOW_RELOCATION))
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{
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cout << fname << " routine should not be probed" << endl;
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exit(-1);
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}
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else
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{
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cout << "ImageLoad: Pin behavior is right: reject to replace " << fname << " routine" << endl;
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}
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}
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}
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VOID ImageLoad(IMG img, VOID *v)
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{
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CheckRelocatable(C_MANGLE("relocatable_1"), img, &pf_r1, AFUNPTR(R1));
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CheckRelocatable1a(C_MANGLE("relocatable_1a"), img, &pf_r1a, AFUNPTR(R1a));
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CheckRelocatable(C_MANGLE("relocatable_2"), img, &pf_r2, AFUNPTR(R2));
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CheckRelocatableSig(C_MANGLE("relocatable_3"), img, AFUNPTR(R3));
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CheckNonRelocatable(C_MANGLE("non_relocatable_1"), img);
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CheckNonRelocatable(C_MANGLE("non_relocatable_2"), img);
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}
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/* ===================================================================== */
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int main(int argc, CHAR *argv[])
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{
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PIN_InitSymbols();
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if( PIN_Init(argc,argv) )
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return Usage();
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IMG_AddInstrumentFunction(ImageLoad, 0);
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PIN_StartProgramProbed();
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return 0;
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}
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/* ===================================================================== */
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/* eof */
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/* ===================================================================== */
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