diff options
Diffstat (limited to 'gdb/linux-thread-db.c')
| -rw-r--r-- | gdb/linux-thread-db.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gdb/linux-thread-db.c b/gdb/linux-thread-db.c index 0e16f6a..453505b 100644 --- a/gdb/linux-thread-db.c +++ b/gdb/linux-thread-db.c @@ -1410,6 +1410,37 @@ thread_db_extra_thread_info (struct target_ops *self, return NULL; } +/* Return pointer to the thread_info struct which corresponds to + THREAD_HANDLE (having length HANDLE_LEN). */ + +static struct thread_info * +thread_db_thread_handle_to_thread_info (struct target_ops *ops, + const gdb_byte *thread_handle, + int handle_len, + struct inferior *inf) +{ + struct thread_info *tp; + thread_t handle_tid; + + /* Thread handle sizes must match in order to proceed. We don't use an + assert here because the resulting internal error will cause GDB to + exit. This isn't necessarily an internal error due to the possibility + of garbage being passed as the thread handle via the python interface. */ + if (handle_len != sizeof (handle_tid)) + error (_("Thread handle size mismatch: %d vs %zu (from libthread_db)"), + handle_len, sizeof (handle_tid)); + + handle_tid = * (const thread_t *) thread_handle; + + ALL_NON_EXITED_THREADS (tp) + { + if (tp->inf == inf && tp->priv != NULL && handle_tid == tp->priv->tid) + return tp; + } + + return NULL; +} + /* Get the address of the thread local variable in load module LM which is stored at OFFSET within the thread local storage for thread PTID. */ @@ -1691,6 +1722,7 @@ init_thread_db_ops (void) = thread_db_get_thread_local_address; thread_db_ops.to_extra_thread_info = thread_db_extra_thread_info; thread_db_ops.to_get_ada_task_ptid = thread_db_get_ada_task_ptid; + thread_db_ops.to_thread_handle_to_thread_info = thread_db_thread_handle_to_thread_info; thread_db_ops.to_magic = OPS_MAGIC; complete_target_initialization (&thread_db_ops); |