diff options
| -rw-r--r-- | clang/include/clang/Driver/Options.td | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td index acf82c5ab20..50aa0833e1b 100644 --- a/clang/include/clang/Driver/Options.td +++ b/clang/include/clang/Driver/Options.td @@ -1639,11 +1639,18 @@ def fno_signed_char : Flag<["-"], "fno-signed-char">, Group<f_Group>, Flags<[CC1Option]>, HelpText<"Char is unsigned">; def fsplit_stack : Flag<["-"], "fsplit-stack">, Group<f_Group>; def fstack_protector_all : Flag<["-"], "fstack-protector-all">, Group<f_Group>, - HelpText<"Force the usage of stack protectors for all functions">; + HelpText<"Enable stack protectors for all functions">; def fstack_protector_strong : Flag<["-"], "fstack-protector-strong">, Group<f_Group>, - HelpText<"Use a strong heuristic to apply stack protectors to functions">; + HelpText<"Enable stack protectors for some functions vulnerable to stack smashing. " + "Compared to -fstack-protector, this uses a stronger heuristic " + "that includes functions containing arrays of any size (and any type), " + "as well as any calls to alloca or the taking of an address from a local variable">; def fstack_protector : Flag<["-"], "fstack-protector">, Group<f_Group>, - HelpText<"Enable stack protectors for functions potentially vulnerable to stack smashing">; + HelpText<"Enable stack protectors for some functions vulnerable to stack smashing. " + "This uses a loose heuristic which considers functions vulnerable " + "if they contain a char (or 8bit integer) array or constant sized calls to " + "alloca, which are of greater size than ssp-buffer-size (default: 8 bytes). " + "All variable sized calls to alloca are considered vulnerable">; def fstandalone_debug : Flag<["-"], "fstandalone-debug">, Group<f_Group>, Flags<[CoreOption]>, HelpText<"Emit full debug info for all types used by the program">; def fno_standalone_debug : Flag<["-"], "fno-standalone-debug">, Group<f_Group>, Flags<[CoreOption]>, |
