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Add target method for converting thread handle to thread_info struct pointer

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This patch adds a target method named `to_thread_handle_to_thread_info'.
It is intended to map a thread library specific thread handle (such as
pthread_t for the pthread library) to the corresponding GDB internal
thread_info struct (pointer).

An implementation is provided for Linux pthreads; see linux-thread-db.c.

gdb/ChangeLog:

	* target.h (struct target_ops): Add to_thread_handle_to_thread_info.
	(target_thread_handle_to_thread_info): Declare.
	* target.c (target_thread_handle_to_thread_info): New function.
	* target-delegates.c: Regenerate.
	* gdbthread.h (find_thread_by_handle): Declare.
	* thread.c (find_thread_by_handle): New function.
	* linux-thread-db.c (thread_db_thread_handle_to_thread_info): New
	function.
	(init_thread_db_ops): Register thread_db_thread_handle_to_thread_info.
This commit is contained in:
Kevin Buettner 2016-05-04 15:21:12 -07:00
parent f557a88ab1
commit e04ee09e24
7 changed files with 117 additions and 0 deletions
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4
gdb/gdbthread.h
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@ -448,6 +448,10 @@ extern struct thread_info *find_thread_ptid (ptid_t ptid);
/* Find thread by GDB global thread ID. */
struct thread_info *find_thread_global_id (int global_id);
/* Find thread by thread library specific handle in inferior INF. */
struct thread_info *find_thread_by_handle (struct value *thread_handle,
struct inferior *inf);
/* Finds the first thread of the inferior given by PID. If PID is -1,
returns the first thread in the list. */
struct thread_info *first_thread_of_process (int pid);