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/*
* Copyright 2002-2019 Intel Corporation.
*
* This software is provided to you as Sample Source Code as defined in the accompanying
* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
* section 1.L.
*
* This software and the related documents are provided as is, with no express or implied
* warranties, other than those that are expressly stated in the License.
*/
// The tool callapp9.cpp and application inner.c showed a bug with the way REG_INST_G0
// is handled. That register should have the value "1" when executing code
// from PIN_CallApplicationFunction() and the value "0" when executing other
// code. However, after execution returns from the replaced function, REG_INST_G0
// continued to have the value "1". The correct behavior is is for REG_INST_G0
// to have the value "0" when it returns from the replacement function.
//
// The correct output is:
// At Inner G0=0
// Calling replaced Replaced()
// REPLACE_Replaced: REG_INST_G0=1
// At Inner G0=1
// REPLACE_Replaced: REG_INST_G0=1
// Returning from replaced Replaced()
// i=2
// At Inner G0=0
#include <stdio.h>
#if defined (TARGET_WINDOWS)
#define EXPORT_SYM __declspec( dllexport )
#else
#define EXPORT_SYM extern
#endif
EXPORT_SYM int Replaced();
EXPORT_SYM void Inner();
int Glob = 0;
int main()
{
int i;
Inner();
i = Replaced();
printf("i=%d\n", i);
Inner();
return 0;
}
EXPORT_SYM int Replaced()
{
Inner();
return Glob;
}
EXPORT_SYM void Inner()
{
Glob++;
}