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52 lines
1.4 KiB
52 lines
1.4 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 application branch into the vsyscall area (used only in 64 bits)
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* Used for testing Pin handling when application branch into that area
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*/
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#include <iostream>
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#include <sys/time.h>
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#include <unistd.h>
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#include <assert.h>
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using std::cout;
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using std::endl;
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#define VSYSCALL_GETTIMEOFDAY_ADDRESS 0xffffffffff600000
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struct timeval startTime, endTime;
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typedef long (*vsyscall_gettimeofday_t)(struct timeval*, struct timezone*);
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const vsyscall_gettimeofday_t vgtod = (vsyscall_gettimeofday_t)(VSYSCALL_GETTIMEOFDAY_ADDRESS);
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//vsyscall time address is 0xffffffffff600400
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//vsyscall getcpu address is 0xffffffffff600800
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int main( int argc, char *argv[] )
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{
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int ret = 0;
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ret = vgtod(&startTime, NULL);
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assert(ret==0);
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sleep(1);
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ret = vgtod(&endTime, NULL);
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assert(ret==0);
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long time_spent = ((endTime.tv_sec * 1000000 + endTime.tv_usec) - (startTime.tv_sec * 1000000 + startTime.tv_usec));
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cout << time_spent << endl;
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// Done.
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cout << "APP: Application completed successfully." << endl;
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return 0;
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}
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