/* sysprof-address.c
 *
 * Copyright 2016-2019 Christian Hergert <chergert@redhat.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * Subject to the terms and conditions of this license, each copyright holder
 * and contributor hereby grants to those receiving rights under this license
 * a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
 * irrevocable (except for failure to satisfy the conditions of this license)
 * patent license to make, have made, use, offer to sell, sell, import, and
 * otherwise transfer this software, where such license applies only to those
 * patent claims, already acquired or hereafter acquired, licensable by such
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 *     Contribution.
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 * Except as expressly stated above, no rights or licenses from any copyright
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#include "config.h"

#ifdef __linux__
# include <linux/perf_event.h>
#else
# include "sysprof-address-fallback.h"
#endif
#include <stdbool.h>
#include <stddef.h>

#include "sysprof-address.h"

bool
sysprof_address_is_context_switch (SysprofAddress         address,
                                   SysprofAddressContext *context)
{
  SysprofAddressContext dummy;

  if (context == NULL)
    context = &dummy;

  switch (address)
    {
    case PERF_CONTEXT_HV:
      *context = SYSPROF_ADDRESS_CONTEXT_HYPERVISOR;
      return true;

    case PERF_CONTEXT_KERNEL:
      *context = SYSPROF_ADDRESS_CONTEXT_KERNEL;
      return true;

    case PERF_CONTEXT_USER:
      *context = SYSPROF_ADDRESS_CONTEXT_USER;
      return true;

    case PERF_CONTEXT_GUEST:
      *context = SYSPROF_ADDRESS_CONTEXT_GUEST;
      return true;

    case PERF_CONTEXT_GUEST_KERNEL:
      *context = SYSPROF_ADDRESS_CONTEXT_GUEST_KERNEL;
      return true;

    case PERF_CONTEXT_GUEST_USER:
      *context = SYSPROF_ADDRESS_CONTEXT_GUEST_USER;
      return true;

    default:
      *context = SYSPROF_ADDRESS_CONTEXT_NONE;
      return false;
    }
}

const char *
sysprof_address_context_to_string (SysprofAddressContext context)
{
  switch (context)
    {
      case SYSPROF_ADDRESS_CONTEXT_HYPERVISOR:
        return "- - hypervisor - -";

      case SYSPROF_ADDRESS_CONTEXT_KERNEL:
        return "- - kernel - -";

      case SYSPROF_ADDRESS_CONTEXT_USER:
        return "- - user - -";

      case SYSPROF_ADDRESS_CONTEXT_GUEST:
        return "- - guest - -";

      case SYSPROF_ADDRESS_CONTEXT_GUEST_KERNEL:
        return "- - guest kernel - -";

      case SYSPROF_ADDRESS_CONTEXT_GUEST_USER:
        return "- - guest user - -";

      case SYSPROF_ADDRESS_CONTEXT_NONE:
      default:
        return "- - unknown - -";
    }
}