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/* go-caller.c -- runtime.Caller and runtime.FuncForPC for Go.

   Copyright 2009 The Go Authors. All rights reserved.

   Use of this source code is governed by a BSD-style

   license that can be found in the LICENSE file.  */

/* Implement runtime.Caller.  */

#include <stdint.h>

#include "go-string.h"

/* The values returned by runtime.Caller.  */

struct caller_ret

{

  uintptr_t pc;

  struct __go_string file;

  int line;

  _Bool ok;

};

/* Implement runtime.Caller.  */

struct caller_ret Caller (int n) asm ("libgo_runtime.runtime.Caller");

struct caller_ret

Caller (int n __attribute__ ((unused)))

{

  struct caller_ret ret;

  /* A proper implementation needs to dig through the debugging

     information.  */

  ret.pc = (uint64_t) (uintptr_t) __builtin_return_address (0);

  ret.file.__data = NULL;

  ret.file.__length = 0;

  ret.line = 0;

  ret.ok = 0;

  return ret;

}

/* Implement runtime.FuncForPC.  */

void *FuncForPC (uintptr_t) asm ("libgo_runtime.runtime.FuncForPC");

void *

FuncForPC(uintptr_t pc __attribute__ ((unused)))

{

  return NULL;

}