I am testing the patch set with the following code:
#include <stdio.h>
#include <unistd.h>
volatile short semaphore = 0;
int for_uprobe(int c)
{
printf("%d\n", c + 10);
return c + 1;
}
int main(int argc, char *argv[])
{
for_uprobe(argc);
while (1) {
sleep(1);
printf("semaphore %d\n", semaphore);
}
}
I created a uprobe on function for_uprobe(), that uses semaphore as
reference counter:
echo "p:uprobe_1 /root/a.out:0x49a(0x1036)" >> uprobe_events