src/ht-android-shellcode/shared_object_eop/jni/test2.c~
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <errno.h>
int main(void)
{
long long counter = 0; /* machine instruction counter */
int wait_val; /* child's return value */
int pid; /* child's process id */
puts("Please wait");
switch (pid = fork()) {
case -1:
perror("fork");
break;
case 0: /* child process starts */
ptrace(PTRACE_TRACEME, 0, 0, 0);
/*
* must be called in order to allow the
* control over the child process
*/
execl("/system/bin/ls", "ls", NULL);
/*
* executes the program and causes
* the child to stop and send a signal
* to the parent, the parent can now
* switch to PTRACE_SINGLESTEP
*/
break;
/* child process ends */
default:/* parent process starts */
wait(&wait_val);
/*
* parent waits for child to stop at next
* instruction (execl())
*/
while (wait_val != 1407 ) {
counter++;
if (ptrace(PTRACE_SINGLESTEP, pid, 0, 0) != 0)
perror("ptrace");
/*
* switch to singlestep tracing and
* release child
* if unable call error.
*/
wait(&wait_val);
/* wait for next instruction to complete */
}
/*
* continue to stop, wait and release until
* the child is finished; wait_val != 1407
* Low=0177L and High=05 (SIGTRAP)
*/
}
printf("Number of machine instructions : %lld\n", counter);
return 0;
}