openmp/runtime/src/kmp_omp.h

#if USE_DEBUGGER
/*
 * kmp_omp.h -- OpenMP definition for kmp_omp_struct_info_t.
 *              This is for information about runtime library structures.
 */

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

/* THIS FILE SHOULD NOT BE MODIFIED IN IDB INTERFACE LIBRARY CODE
   It should instead be modified in the OpenMP runtime and copied to the
   interface library code.  This way we can minimize the problems that this is
   sure to cause having two copies of the same file.

   Files live in libomp and libomp_db/src/include  */

/* CHANGE THIS WHEN STRUCTURES BELOW CHANGE
   Before we release this to a customer, please don't change this value.  After
   it is released and stable, then any new updates to the structures or data
   structure traversal algorithms need to change this value. */
#define KMP_OMP_VERSION 9

typedef struct {
  kmp_int32 offset;
  kmp_int32 size;
} offset_and_size_t;

typedef struct {
  kmp_uint64 addr;
  kmp_int32 size;
  kmp_int32 padding;
} addr_and_size_t;

typedef struct {
  kmp_uint64 flags; // Flags for future extensions.
  kmp_uint64
      file; // Pointer to name of source file where the parallel region is.
  kmp_uint64 func; // Pointer to name of routine where the parallel region is.
  kmp_int32 begin; // Beginning of source line range.
  kmp_int32 end; // End of source line range.
  kmp_int32 num_threads; // Specified number of threads.
} kmp_omp_nthr_item_t;

typedef struct {
  kmp_int32 num; // Number of items in the array.
  kmp_uint64 array; // Address of array of kmp_omp_num_threads_item_t.
} kmp_omp_nthr_info_t;

/* This structure is known to the idb interface library */
typedef struct {

  /* Change this only if you make a fundamental data structure change here */
  kmp_int32 lib_version;

  /* sanity check.  Only should be checked if versions are identical
   * This is also used for backward compatibility to get the runtime
   * structure size if it the runtime is older than the interface */
  kmp_int32 sizeof_this_structure;

  /* OpenMP RTL version info. */
  addr_and_size_t major;
  addr_and_size_t minor;
  addr_and_size_t build;
  addr_and_size_t openmp_version;
  addr_and_size_t banner;

  /* Various globals. */
  addr_and_size_t threads; // Pointer to __kmp_threads.
  addr_and_size_t roots; // Pointer to __kmp_root.
  addr_and_size_t capacity; // Pointer to __kmp_threads_capacity.
#if KMP_USE_MONITOR
  addr_and_size_t monitor; // Pointer to __kmp_monitor.
#endif
#if !KMP_USE_DYNAMIC_LOCK
  addr_and_size_t lock_table; // Pointer to __kmp_lock_table.
#endif
  addr_and_size_t func_microtask;
  addr_and_size_t func_fork;
  addr_and_size_t func_fork_teams;
  addr_and_size_t team_counter;
  addr_and_size_t task_counter;
  addr_and_size_t nthr_info;
  kmp_int32 address_width;
  kmp_int32 indexed_locks;
  kmp_int32 last_barrier; // The end in enum barrier_type
  kmp_int32 deque_size; // TASK_DEQUE_SIZE

  /* thread structure information. */
  kmp_int32 th_sizeof_struct;
  offset_and_size_t th_info; // descriptor for thread
  offset_and_size_t th_team; // team for this thread
  offset_and_size_t th_root; // root for this thread
  offset_and_size_t th_serial_team; // serial team under this thread
  offset_and_size_t th_ident; // location for this thread (if available)
  offset_and_size_t th_spin_here; // is thread waiting for lock (if available)
  offset_and_size_t
      th_next_waiting; // next thread waiting for lock (if available)
  offset_and_size_t th_task_team; // task team struct
  offset_and_size_t th_current_task; // innermost task being executed
  offset_and_size_t
      th_task_state; // alternating 0/1 for task team identification
  offset_and_size_t th_bar;
  offset_and_size_t th_b_worker_arrived; // the worker increases it by 1 when it
  // arrives to the barrier

  /* teams information */
  offset_and_size_t th_teams_microtask; // entry address for teams construct
  offset_and_size_t th_teams_level; // initial level of teams construct
  offset_and_size_t th_teams_nteams; // number of teams in a league
  offset_and_size_t
      th_teams_nth; // number of threads in each team of the league

  /* kmp_desc structure (for info field above) */
  kmp_int32 ds_sizeof_struct;
  offset_and_size_t ds_tid; // team thread id
  offset_and_size_t ds_gtid; // global thread id
  offset_and_size_t ds_thread; // native thread id

  /* team structure information */
  kmp_int32 t_sizeof_struct;
  offset_and_size_t t_master_tid; // tid of primary thread in parent team
  offset_and_size_t t_ident; // location of parallel region
  offset_and_size_t t_parent; // parent team
  offset_and_size_t t_nproc; // # team threads
  offset_and_size_t t_threads; // array of threads
  offset_and_size_t t_serialized; // # levels of serialized teams
  offset_and_size_t t_id; // unique team id
  offset_and_size_t t_pkfn;
  offset_and_size_t t_task_team; // task team structure
  offset_and_size_t t_implicit_task; // taskdata for the thread's implicit task
  offset_and_size_t t_cancel_request;
  offset_and_size_t t_bar;
  offset_and_size_t
      t_b_master_arrived; // incremented when primary thread reaches barrier
  offset_and_size_t
      t_b_team_arrived; // increased by one when all the threads arrived

  /* root structure information */
  kmp_int32 r_sizeof_struct;
  offset_and_size_t r_root_team; // team at root
  offset_and_size_t r_hot_team; // hot team for this root
  offset_and_size_t r_uber_thread; // root thread
  offset_and_size_t r_root_id; // unique root id (if available)

  /* ident structure information */
  kmp_int32 id_sizeof_struct;
  offset_and_size_t
      id_psource; /* address of string ";file;func;line1;line2;;". */
  offset_and_size_t id_flags;

  /* lock structure information */
  kmp_int32 lk_sizeof_struct;
  offset_and_size_t lk_initialized;
  offset_and_size_t lk_location;
  offset_and_size_t lk_tail_id;
  offset_and_size_t lk_head_id;
  offset_and_size_t lk_next_ticket;
  offset_and_size_t lk_now_serving;
  offset_and_size_t lk_owner_id;
  offset_and_size_t lk_depth_locked;
  offset_and_size_t lk_lock_flags;

#if !KMP_USE_DYNAMIC_LOCK
  /* lock_table_t */
  kmp_int32 lt_size_of_struct; /* Size and layout of kmp_lock_table_t. */
  offset_and_size_t lt_used;
  offset_and_size_t lt_allocated;
  offset_and_size_t lt_table;
#endif

  /* task_team_t */
  kmp_int32 tt_sizeof_struct;
  offset_and_size_t tt_threads_data;
  offset_and_size_t tt_found_tasks;
  offset_and_size_t tt_nproc;
  offset_and_size_t tt_unfinished_threads;
  offset_and_size_t tt_active;

  /* kmp_taskdata_t */
  kmp_int32 td_sizeof_struct;
  offset_and_size_t td_task_id; // task id
  offset_and_size_t td_flags; // task flags
  offset_and_size_t td_team; // team for this task
  offset_and_size_t td_parent; // parent task
  offset_and_size_t td_level; // task testing level
  offset_and_size_t td_ident; // task identifier
  offset_and_size_t td_allocated_child_tasks; // child tasks (+ current task)
  // not yet deallocated
  offset_and_size_t td_incomplete_child_tasks; // child tasks not yet complete

  /* Taskwait */
  offset_and_size_t td_taskwait_ident;
  offset_and_size_t td_taskwait_counter;
  offset_and_size_t
      td_taskwait_thread; // gtid + 1 of thread encountered taskwait

  /* Taskgroup */
  offset_and_size_t td_taskgroup; // pointer to the current taskgroup
  offset_and_size_t
      td_task_count; // number of allocated and not yet complete tasks
  offset_and_size_t td_cancel; // request for cancellation of this taskgroup

  /* Task dependency */
  offset_and_size_t
      td_depnode; // pointer to graph node if the task has dependencies
  offset_and_size_t dn_node;
  offset_and_size_t dn_next;
  offset_and_size_t dn_successors;
  offset_and_size_t dn_task;
  offset_and_size_t dn_npredecessors;
  offset_and_size_t dn_nrefs;
  offset_and_size_t dn_routine;

  /* kmp_thread_data_t */
  kmp_int32 hd_sizeof_struct;
  offset_and_size_t hd_deque;
  offset_and_size_t hd_deque_size;
  offset_and_size_t hd_deque_head;
  offset_and_size_t hd_deque_tail;
  offset_and_size_t hd_deque_ntasks;
  offset_and_size_t hd_deque_last_stolen;

  // The last field of stable version.
  kmp_uint64 last_field;

} kmp_omp_struct_info_t;

#endif /* USE_DEBUGGER */

/* end of file */