llvm-project/openmp/runtime/src/kmp_itt.cpp

#include "kmp_config.h"

#if USE_ITT_BUILD
/*
 * kmp_itt.cpp -- ITT Notify interface.
 */

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "kmp_itt.h"

#if KMP_DEBUG
#include "kmp_itt.inl"
#endif

#if USE_ITT_NOTIFY

#include "ittnotify_config.h"
__itt_global __kmp_ittapi_clean_global;
extern __itt_global __kmp_itt__ittapi_global;
kmp_int32 __kmp_barrier_domain_count;
kmp_int32 __kmp_region_domain_count;
__itt_domain *__kmp_itt_barrier_domains[KMP_MAX_FRAME_DOMAINS];
__itt_domain *__kmp_itt_region_domains[KMP_MAX_FRAME_DOMAINS];
__itt_domain *__kmp_itt_imbalance_domains[KMP_MAX_FRAME_DOMAINS];
kmp_int32 __kmp_itt_region_team_size[KMP_MAX_FRAME_DOMAINS];
__itt_domain *metadata_domain = NULL;
__itt_string_handle *string_handle_imbl = NULL;
__itt_string_handle *string_handle_loop = NULL;
__itt_string_handle *string_handle_sngl = NULL;

#include "kmp_i18n.h"
#include "kmp_str.h"
#include "kmp_version.h"

KMP_BUILD_ASSERT(sizeof(kmp_itt_mark_t) == sizeof(__itt_mark_type));

/* Previously used warnings:

   KMP_WARNING( IttAllNotifDisabled );
   KMP_WARNING( IttObjNotifDisabled );
   KMP_WARNING( IttMarkNotifDisabled );
   KMP_WARNING( IttUnloadLibFailed, libittnotify );
*/

kmp_int32 __kmp_itt_prepare_delay = 0;
kmp_bootstrap_lock_t __kmp_itt_debug_lock =
    KMP_BOOTSTRAP_LOCK_INITIALIZER(__kmp_itt_debug_lock);

#endif // USE_ITT_NOTIFY

void __kmp_itt_reset() {
#if USE_ITT_NOTIFY
  __kmp_itt__ittapi_global = __kmp_ittapi_clean_global;
#endif
}

void __kmp_itt_initialize() {

// ITTNotify library is loaded and initialized at first call to any ittnotify
// function, so we do not need to explicitly load it any more. Just report OMP
// RTL version to ITTNotify.

#if USE_ITT_NOTIFY
  // Backup a clean global state
  __kmp_ittapi_clean_global = __kmp_itt__ittapi_global;

  // Report OpenMP RTL version.
  kmp_str_buf_t buf;
  __itt_mark_type version;
  __kmp_str_buf_init(&buf);
  __kmp_str_buf_print(&buf, "OMP RTL Version %d.%d.%d", __kmp_version_major,
                      __kmp_version_minor, __kmp_version_build);
  if (__itt_api_version_ptr != NULL) {
    __kmp_str_buf_print(&buf, ":%s", __itt_api_version());
  }
  version = __itt_mark_create(buf.str);
  __itt_mark(version, NULL);
  __kmp_str_buf_free(&buf);
#endif

} // __kmp_itt_initialize

void __kmp_itt_destroy() {
#if USE_ITT_NOTIFY
  __kmp_itt_fini_ittlib();
#endif
} // __kmp_itt_destroy

extern "C" void __itt_error_handler(__itt_error_code err, va_list args) {

  switch (err) {
  case __itt_error_no_module: {
    char const *library = va_arg(args, char const *);
#if KMP_OS_WINDOWS
    int sys_err = va_arg(args, int);
    kmp_msg_t err_code = KMP_SYSERRCODE(sys_err);
    __kmp_msg(kmp_ms_warning, KMP_MSG(IttLoadLibFailed, library), err_code,
              __kmp_msg_null);
    if (__kmp_generate_warnings == kmp_warnings_off) {
      __kmp_str_free(&err_code.str);
    }
#else
    char const *sys_err = va_arg(args, char const *);
    kmp_msg_t err_code = KMP_SYSERRMESG(sys_err);
    __kmp_msg(kmp_ms_warning, KMP_MSG(IttLoadLibFailed, library), err_code,
              __kmp_msg_null);
    if (__kmp_generate_warnings == kmp_warnings_off) {
      __kmp_str_free(&err_code.str);
    }
#endif
  } break;
  case __itt_error_no_symbol: {
    char const *library = va_arg(args, char const *);
    char const *symbol = va_arg(args, char const *);
    KMP_WARNING(IttLookupFailed, symbol, library);
  } break;
  case __itt_error_unknown_group: {
    char const *var = va_arg(args, char const *);
    char const *group = va_arg(args, char const *);
    KMP_WARNING(IttUnknownGroup, var, group);
  } break;
  case __itt_error_env_too_long: {
    char const *var = va_arg(args, char const *);
    size_t act_len = va_arg(args, size_t);
    size_t max_len = va_arg(args, size_t);
    KMP_WARNING(IttEnvVarTooLong, var, (unsigned long)act_len,
                (unsigned long)max_len);
  } break;
  case __itt_error_cant_read_env: {
    char const *var = va_arg(args, char const *);
    int sys_err = va_arg(args, int);
    kmp_msg_t err_code = KMP_ERR(sys_err);
    __kmp_msg(kmp_ms_warning, KMP_MSG(CantGetEnvVar, var), err_code,
              __kmp_msg_null);
    if (__kmp_generate_warnings == kmp_warnings_off) {
      __kmp_str_free(&err_code.str);
    }
  } break;
  case __itt_error_system: {
    char const *func = va_arg(args, char const *);
    int sys_err = va_arg(args, int);
    kmp_msg_t err_code = KMP_SYSERRCODE(sys_err);
    __kmp_msg(kmp_ms_warning, KMP_MSG(IttFunctionError, func), err_code,
              __kmp_msg_null);
    if (__kmp_generate_warnings == kmp_warnings_off) {
      __kmp_str_free(&err_code.str);
    }
  } break;
  default: { KMP_WARNING(IttUnknownError, err); }
  }
} // __itt_error_handler

#endif /* USE_ITT_BUILD */