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Commit bfdc4ff2 authored by Rucha Deodhar's avatar Rucha Deodhar
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MDEV-28762: recursive call of some json functions without stack control 

Fixup to MDEV-28762. Fixes warnings about unused variable "stack_used_up"
during building with RelWithDebInfo
parent f53f64b7
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Inline Side-by-side
Showing with 35 additions and 22 deletions
sql/item_jsonfunc.cc
View file @ bfdc4ff2
......@@ -1243,10 +1243,12 @@ static int check_contains(json_engine_t *js, json_engine_t *value)
{
json_engine_t loc_js;
bool set_js;
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
DBUG_EXECUTE_IF("json_check_min_stack_requirement",
{ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);});
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);
});
if (check_stack_overrun(current_thd, STACK_MIN_SIZE , NULL))
return 1;
......@@ -2238,10 +2240,12 @@ String *Item_func_json_object::val_str(String *str)
static int do_merge(String *str, json_engine_t *je1, json_engine_t *je2)
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
DBUG_EXECUTE_IF("json_check_min_stack_requirement",
{ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);});
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);
});
if (check_stack_overrun(current_thd, STACK_MIN_SIZE , NULL))
return 1;
......@@ -2579,10 +2583,12 @@ static int copy_value_patch(String *str, json_engine_t *je)
static int do_merge_patch(String *str, json_engine_t *je1, json_engine_t *je2,
bool *empty_result)
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
DBUG_EXECUTE_IF("json_check_min_stack_requirement",
{ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);});
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);
});
if (check_stack_overrun(current_thd, STACK_MIN_SIZE , NULL))
return 1;
......@@ -4567,10 +4573,12 @@ int json_find_overlap_with_object(json_engine_t *js, json_engine_t *value,
*/
int check_overlaps(json_engine_t *js, json_engine_t *value, bool compare_whole)
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
DBUG_EXECUTE_IF("json_check_min_stack_requirement",
{ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);});
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);
});
if (check_stack_overrun(current_thd, STACK_MIN_SIZE , NULL))
return 1;
......
sql/json_table.cc
View file @ bfdc4ff2
......@@ -118,10 +118,12 @@ int get_disallowed_table_deps_for_list(MEM_ROOT *mem_root,
NESTED_JOIN *nested_join;
List_iterator<TABLE_LIST> li(*join_list);
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
DBUG_EXECUTE_IF("json_check_min_stack_requirement",
{ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);});
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);
});
if (check_stack_overrun(current_thd, STACK_MIN_SIZE , NULL))
return 1;
......@@ -1344,13 +1346,14 @@ static void add_extra_deps(List<TABLE_LIST> *join_list, table_map deps)
TABLE_LIST *table;
List_iterator<TABLE_LIST> li(*join_list);
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
DBUG_EXECUTE_IF("json_check_min_stack_requirement",
{ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);});
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);
});
if (check_stack_overrun(current_thd, STACK_MIN_SIZE , NULL))
return;
while ((table= li++))
{
table->dep_tables |= deps;
......@@ -1439,10 +1442,12 @@ table_map add_table_function_dependencies(List<TABLE_LIST> *join_list,
table_map res= 0;
List_iterator<TABLE_LIST> li(*join_list);
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
DBUG_EXECUTE_IF("json_check_min_stack_requirement",
{ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);});
{
long arbitrary_var;
long stack_used_up= (available_stack_size(current_thd->thread_stack, &arbitrary_var));
ALLOCATE_MEM_ON_STACK(my_thread_stack_size-stack_used_up-STACK_MIN_SIZE);
});
if ((res=check_stack_overrun(current_thd, STACK_MIN_SIZE , NULL)))
return res;
......
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