Added name to MEM_ROOT for esier debugging

This will make it easier to how memory allocation is done when debugging
with either DBUG or gdb.

Will especially help when debugging stored procedures

Main change is a name argument as second argument to init_alloc_root()
init_sql_alloc()

Other things:
- Added DBUG_ENTER/EXIT to some Virtual_tmp_table functions

1 files changed, 4 insertions, 3 deletions

diff --git a/sql/thr_malloc.cc b/sql/thr_malloc.cc
index cbed769a424..94ae1a4431c 100644
--- a/sql/thr_malloc.cc
+++ b/sql/thr_malloc.cc
@@ -58,10 +58,11 @@ extern "C" {
   }
 }
 
-void init_sql_alloc(MEM_ROOT *mem_root, uint block_size, uint pre_alloc,
-                    myf my_flags)
+void init_sql_alloc(MEM_ROOT *mem_root,
+                    const char *area_name __attribute__((unused)),
+                    uint block_size, uint pre_alloc, myf my_flags)
 {
-  init_alloc_root(mem_root, block_size, pre_alloc, my_flags);
+  init_alloc_root(mem_root, area_name, block_size, pre_alloc, my_flags);
   mem_root->error_handler=sql_alloc_error_handler;
 }