[binutils-gdb] Created tag users/gbenson/thread_db-test/2017-11-22

[Gary Benson]

The unsigned tag 'users/gbenson/thread_db-test/2017-11-22' was created pointing to:

 66e8d8b... linux: Add maintenance commands to test libthread_db

Tagger: Gary Benson <gbenson@redhat.com>
Date: Fri Apr 13 14:35:15 2018 +0100

    Maintenance commands to test libthread_db

Diff:

Summary of changes (added commits):
-----------------------------------

  66e8d8b... linux: Add maintenance commands to test libthread_db

commit 66e8d8becf54a121192ba5c2cb98e2a3d9e3b924
Author: Gary Benson <gbenson@redhat.com>
Date:   Wed Nov 22 14:37:00 2017 +0000

    linux: Add maintenance commands to test libthread_db
    
    This commit adds two new commands which may be used to test thread
    debugging libraries used by GDB:
    
      * "maint check libthread-db" tests the thread debugging library GDB
         is using for the current inferior.
    
      * "maint set/show check-libthread-db" selects whether libthread_db
         tests should be run automatically as libthread_db is auto-loaded.
         The default is to not run tests automatically.
    
    The test itself is a basic integrity check exercising all libthread_db
    functions used by GDB on GNU/Linux systems.  By extension this also
    exercises the proc_service functions provided by GDB that libthread_db
    uses.
    
    This functionality is useful for NPTL developers and libthread_db
    developers.  It could also prove useful investigating bugs reported
    against GDB where the thread debugging library or GDB's proc_service
    layer is suspect.
    
    gdb/ChangeLog:
    
    	* linux-thread-db.c (valprint.h): New include.
    	(struct check_thread_db_info): New structure.
    	(check_thread_db_on_load, tdb_testinfo): New static globals.
    	(check_thread_db, check_thread_db_callback): New functions.
    	(try_thread_db_load_1): Run integrity checks if requested.
    	(maintenance_check_libthread_db): New function.
    	(_initialize_thread_db): Register "maint check libthread-db"
    	and "maint set/show check-libthread-db".
    
    gdb/doc/ChangeLog:
    
    	* gdb.texinfo (Maintenance Commands): Document "maint check
    	libthread-db" and "maint set/show check-libthread-db".
    
    gdb/testsuite/ChangeLog:
    
    	* gdb.threads/check-libthread-db.exp: New file.
    	* gdb.threads/check-libthread-db.c: Likewise.