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//===-- main.cpp ------------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#if defined(__linux__)
#include <sys/prctl.h>
#endif
#include <chrono>
#include <thread>
long double outermost_return_long_double (long double my_long_double);
int main (int argc, char const *argv[])
{
#if defined(__linux__)
// Immediately enable any ptracer so that we can allow the stub attach
// operation to succeed. Some Linux kernels are locked down so that
// only an ancestor process can be a ptracer of a process. This disables that
// restriction. Without it, attach-related stub tests will fail.
#if defined(PR_SET_PTRACER) && defined(PR_SET_PTRACER_ANY)
// For now we execute on best effort basis. If this fails for
// some reason, so be it.
const int prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
static_cast<void> (prctl_result);
#endif
#endif
char my_string[] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 0};
double my_double = 1234.5678;
long double my_long_double = 1234.5678;
// For simplicity assume that any cmdline argument means wait for attach.
if (argc > 1)
{
volatile int wait_for_attach=1;
while (wait_for_attach)
std::this_thread::sleep_for(std::chrono::microseconds(1));
}
printf("my_string=%s\n", my_string);
printf("my_double=%g\n", my_double);
outermost_return_long_double (my_long_double);
return 0;
}
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