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/*
* This is a basic test to verify whether uftrace works on the system.
*/
#include <stdlib.h>
#include <unistd.h>
#if __x86_64__
#define NR_NOPS 5
#elif __aarch64__
#define NR_NOPS 2
#else
#define NR_NOPS 0
#endif
#define __patchable __attribute__((patchable_function_entry(NR_NOPS)))
static int a(void);
static int b(void);
static int c(void);
__patchable static int a(void)
{
return b() - 1;
}
static int b(void)
{
return c() + 1;
}
__patchable static int c(void)
{
return getpid() % 100000;
}
__patchable int main(int argc, char *argv[])
{
int ret = 0;
if (argc > 1)
ret = atoi(argv[1]);
ret += a();
return ret ? 0 : 1;
}
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