#include <stdio.h>
#include <stdlib.h>
#ifdef _WIN32
#define environ _environ
#else
extern char **environ;
#endif

// This simple program is to test the lldb Python API SBTarget.
//
// When stopped on breakpoint 1, and then 2, we can get the line entries using
// SBFrame API SBFrame.GetLineEntry().  We'll get the start addresses for the
// two line entries; with the start address (of SBAddress type), we can then
// resolve the symbol context using the SBTarget API
// SBTarget.ResolveSymbolContextForAddress().
//
// The two symbol context should point to the same symbol, i.e., 'a' function.

char my_global_var_of_char_type = 'X'; // Test SBTarget.FindGlobalVariables(...).

int a(int);
int b(int);
int c(int);

int a(int val)
{
    if (val <= 1) // Find the line number for breakpoint 1 here.
        val = b(val);
    else if (val >= 3)
        val = c(val);

    return val; // Find the line number for breakpoint 2 here.
}

int b(int val)
{
    return c(val);
}

int c(int val)
{
    return val + 3;
}

int main(int argc, char const *argv[]) {
  // Set a break at entry to main.
  int A1 = a(1); // a(1) -> b(1) -> c(1)
  printf("a(1) returns %d\n", A1);

  int B2 = b(2); // b(2) -> c(2)
  printf("b(2) returns %d\n", B2);

  int A3 = a(3); // a(3) -> c(3)
  printf("a(3) returns %d\n", A3);

  for (int i = 1; i < argc; i++) {
    printf("arg: %s\n", argv[i]);
  }

  for (char **e = environ; *e; ++e)
    printf("env: %s\n", *e);

  return 0;
}