diff options
Diffstat (limited to 'sql/mysqld.cc')
| -rw-r--r-- | sql/mysqld.cc | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/sql/mysqld.cc b/sql/mysqld.cc index e363c6de3f1..3af8750de13 100644 --- a/sql/mysqld.cc +++ b/sql/mysqld.cc @@ -3587,7 +3587,6 @@ sizeof(load_default_groups)/sizeof(load_default_groups[0]); #endif -#ifndef EMBEDDED_LIBRARY /** This function is used to check for stack overrun for pathological cases of regular expressions and 'like' expressions. @@ -3616,8 +3615,6 @@ check_enough_stack_size(int recurse_level) return 0; return check_enough_stack_size_slow(); } -#endif - /* @@ -3639,11 +3636,12 @@ static void init_pcre() { pcre_malloc= pcre_stack_malloc= my_str_malloc_mysqld; pcre_free= pcre_stack_free= my_str_free_mysqld; -#ifndef EMBEDDED_LIBRARY pcre_stack_guard= check_enough_stack_size_slow; /* See http://pcre.org/original/doc/html/pcrestack.html */ - my_pcre_frame_size= -pcre_exec(NULL, NULL, NULL, -999, -999, 0, NULL, 0) + 16; -#endif + my_pcre_frame_size= -pcre_exec(NULL, NULL, NULL, -999, -999, 0, NULL, 0); + // pcre can underestimate its stack usage. Use a safe value, as in the manual + set_if_bigger(my_pcre_frame_size, 500); + my_pcre_frame_size += 16; // Again, safety margin, see the manual } |