diff options
| author | Hiroaki Etoh <etoh@cvs.openbsd.org> | 2003-10-07 01:24:08 +0000 |
|---|---|---|
| committer | Hiroaki Etoh <etoh@cvs.openbsd.org> | 2003-10-07 01:24:08 +0000 |
| commit | ca3e12c1aa13c1a3b73dbe10be50936d1898fc2c (patch) | |
| tree | 1b4aaffadcf2082bb056617bb4fb9ee7f7d81670 /gnu/egcs | |
| parent | d25b171484224ccd547391a4694f252acbdc5296 (diff) | |
flag_stack_protection enables to genereate protecting instruments for every functions.
ok pvalchev@
Diffstat (limited to 'gnu/egcs')
| -rw-r--r-- | gnu/egcs/gcc/protector.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/gnu/egcs/gcc/protector.c b/gnu/egcs/gcc/protector.c index 47bfb8985e9..41c034256fd 100644 --- a/gnu/egcs/gcc/protector.c +++ b/gnu/egcs/gcc/protector.c @@ -73,6 +73,7 @@ static int current_function_defines_short_string; static int current_function_has_variable_string; static int current_function_defines_vsized_array; static int current_function_is_inlinable; +static int is_array; static rtx guard_area, _guard; static rtx function_first_insn, prologue_insert_point; @@ -139,7 +140,8 @@ prepare_stack_protection (inlinable) current_function_defines_vulnerable_string = search_string_from_argsandvars (0); - if (current_function_defines_vulnerable_string) + if (current_function_defines_vulnerable_string + || flag_stack_protection) { HOST_WIDE_INT offset; function_first_insn = get_insns (); @@ -388,6 +390,10 @@ search_string_def (type) current_function_defines_short_string = TRUE; } + + /* to protect every functions, sweep any arrays to the frame top */ + is_array = TRUE; + return search_string_def(TREE_TYPE(type)); case UNION_TYPE: @@ -919,7 +925,10 @@ arrange_var_order (block) && DECL_RTL (types) && GET_CODE (DECL_RTL (types)) == MEM) { - if (search_string_def (TREE_TYPE (types))) + is_array = 0; + if (search_string_def (TREE_TYPE (types)) + || (! current_function_defines_vulnerable_string + && is_array)) { rtx home = DECL_RTL (types); |