# Copyright (c) 2005-2007 MySQL AB, 2008 Sun Microsystems, Inc.
# Use is subject to license terms.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; version 2
# of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA

#
# Suppress some common (not fatal) errors in system libraries found by valgrind
#

#
# Pthread doesn't free all thread specific memory before program exists
#
{
   pthread allocate_tls memory loss
   Memcheck:Leak
   fun:calloc
   fun:_dl_allocate_tls
   fun:allocate_stack
   fun:pthread_create*
}

{
   pthread allocate_tls memory loss
   Memcheck:Leak
   fun:calloc
   fun:_dl_allocate_tls
   fun:pthread_create*
}

{
   pthread allocate_dtv memory loss
   Memcheck:Leak
   fun:calloc
   fun:allocate_dtv
   fun:_dl_allocate_tls_storage
   fun:__GI__dl_allocate_tls
   fun:pthread_create
}

{
   pthread allocate_dtv memory loss second
   Memcheck:Leak
   fun:calloc
   fun:allocate_dtv
   fun:_dl_allocate_tls
   fun:pthread_create*
}

{
   pthread memalign memory loss
   Memcheck:Leak
   fun:memalign
   fun:_dl_allocate_tls_storage
   fun:__GI__dl_allocate_tls
   fun:pthread_create
}

{
   pthread pthread_key_create
   Memcheck:Leak
   fun:malloc
   fun:*
   fun:*
   fun:pthread_key_create
   fun:my_thread_global_init
}

{
   pthread strstr uninit
   Memcheck:Cond
   fun:strstr
   obj:/lib/tls/libpthread.so.*
   obj:/lib/tls/libpthread.so.*
   fun:call_init
   fun:_dl_init
   obj:/lib/ld-*.so
}

{
   pthread errno
   Memcheck:Leak
   fun:calloc
   fun:_dlerror_run
   fun:dlsym
   fun:__errno_location
}


#
# Warnings in libz becasue it works with aligned memory(?)
#

{
   libz tr_flush_block
   Memcheck:Cond
   fun:_tr_flush_block
   fun:deflate_slow
   fun:deflate
   fun:do_flush
   fun:gzclose
}

{
   libz tr_flush_block2
   Memcheck:Cond
   fun:_tr_flush_block
   fun:deflate_slow
   fun:deflate
   fun:compress2
}

{
   libz longest_match
   Memcheck:Cond
   fun:longest_match
   fun:deflate_slow
   fun:deflate
   fun:do_flush
}

{
   libz longest_match2
   Memcheck:Cond
   fun:longest_match
   fun:deflate_slow
   fun:deflate
   fun:compress2
}

{
   libz longest_match 3
   Memcheck:Cond
   fun:longest_match
   fun:deflate_slow
   fun:deflate
   fun:gzclose
}

{
   libz longest_match 4 
   Memcheck:Cond
   fun:longest_match
   fun:deflate_slow
   fun:deflate
   fun:gzflush
}

{
   libz deflate
   Memcheck:Cond
   obj:*/libz.so.*
   obj:*/libz.so.*
   fun:deflate
   fun:compress2
}

{
   libz deflate2
   Memcheck:Cond
   obj:*/libz.so.*
   obj:*/libz.so.*
   fun:deflate
   obj:*/libz.so.*
   fun:gzflush
}


#
# Warning from my_thread_init becasue mysqld dies before kill thread exists
#

{
   my_thread_init kill thread memory loss second
   Memcheck:Leak
   fun:calloc
   fun:my_thread_init
   fun:kill_server_thread
}

#
# Leaks reported in _dl_* internal functions on Linux amd64 / glibc2.3.2.
#

{
   _dl_start invalid write8
   Memcheck:Addr8
   fun:_dl_start
}

{
   _dl_start invalid write4
   Memcheck:Addr4
   fun:_dl_start
}

{
   _dl_start/_dl_setup_hash invalid read8
   Memcheck:Addr8
   fun:_dl_setup_hash
   fun:_dl_start
}

{
   _dl_sysdep_start invalid write8
   Memcheck:Addr8
   fun:_dl_sysdep_start
}

{
   _dl_init invalid write8
   Memcheck:Addr8
   fun:_dl_init
}

{
   _dl_init invalid write4
   Memcheck:Addr4
   fun:_dl_init
}

{
   _dl_init/_dl_init invalid read8
   Memcheck:Addr8
   fun:_dl_debug_initialize
   fun:_dl_init
}

{
   _dl_init/_dl_debug_state invalid read8
   Memcheck:Addr8
   fun:_dl_debug_state
   fun:_dl_init
}

{
   init invalid write8
   Memcheck:Addr8
   fun:init
}

{
   fixup invalid write8
   Memcheck:Addr8
   fun:fixup
}

{
   fixup/_dl_lookup_versioned_symbol invalid read8
   Memcheck:Addr8
   fun:_dl_lookup_versioned_symbol
   fun:fixup
}

{
   _dl_runtime_resolve invalid read8
   Memcheck:Addr8
   fun:_dl_runtime_resolve
}

{
   __libc_start_main invalid write8
   Memcheck:Addr8
   fun:__libc_start_main
}

{
   __libc_start_main/__sigjmp_save invalid write4
   Memcheck:Addr4
   fun:__sigjmp_save
   fun:__libc_start_main
}

#
# These seem to be libc threading stuff, not related to MySQL code (allocations
# during pthread_exit()). Googling shows other projects also using these
# suppressions.
#
# Note that these all stem from pthread_exit() deeper in the call stack, but
# Valgrind only allows the top four calls in the suppressions.
#

{
   libc pthread_exit 1
   Memcheck:Leak
   fun:malloc
   fun:_dl_new_object
   fun:_dl_map_object_from_fd
   fun:_dl_map_object
}

{
   libc pthread_exit 2
   Memcheck:Leak
   fun:malloc
   fun:_dl_map_object
   fun:dl_open_worker
   fun:_dl_catch_error
}

{
   libc pthread_exit 3
   Memcheck:Leak
   fun:malloc
   fun:_dl_map_object_deps
   fun:dl_open_worker
   fun:_dl_catch_error
}

{
   libc pthread_exit 4
   Memcheck:Leak
   fun:calloc
   fun:_dl_check_map_versions
   fun:dl_open_worker
   fun:_dl_catch_error
}

{
   libc pthread_exit 5
   Memcheck:Leak
   fun:calloc
   fun:_dl_new_object
   fun:_dl_map_object_from_fd
   fun:_dl_map_object
}

{
   libc pthread_exit 8
   Memcheck:Leak
   fun:malloc
   fun:local_strdup
   fun:_dl_map_object
   fun:dl_open_worker
}


#
# This is seen internally in the system libraries on 64-bit RHAS3.
#

{
   __lll_mutex_unlock_wake uninitialized
   Memcheck:Param
   futex(utime)
   fun:__lll_mutex_unlock_wake
}

#
# BUG#19940: NDB sends uninitialized parts of field buffers across the wire.
# This is "works as designed"; the uninitialized part is not used at the
# other end (but Valgrind cannot see this).
#
{
   bug19940
   Memcheck:Param
   socketcall.sendto(msg)
   fun:send
   fun:_ZN15TCP_Transporter6doSendEv
   fun:_ZN19TransporterRegistry11performSendEv
   fun:_ZN19TransporterRegistry14forceSendCheckEi
}

#
# BUG#25463: Probable cause - slave thread doesn't have time to terminate properly
# because rest of the server shuts down before that. The server shutdown code has
# been fixed in 5.1 and there this leak should not happen. Suppression has been 
# approved by Monty.
#
# Important: do not propagate this rule to 5.1 tree!
#

{
   Slave thread shutdown (BUG#25463)
   Memcheck:Leak
   fun:calloc
   fun:my_thread_init
   fun:handle_slave_io
}
