diff options
Diffstat (limited to 'gcc/opt-functions.awk')
| -rw-r--r-- | gcc/opt-functions.awk | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/gcc/opt-functions.awk b/gcc/opt-functions.awk index 9097dfb8d96..b5124969cec 100644 --- a/gcc/opt-functions.awk +++ b/gcc/opt-functions.awk @@ -89,6 +89,32 @@ function var_name(flags) return nth_arg(0, opt_args("Var", flags)) } +# Return true if the option described by FLAGS has a globally-visible state. +function global_state_p(flags) +{ + return (var_name(flags) != "" \ + || opt_args("Mask", flags) != "" \ + || opt_args("InverseMask", flags) != "") +} + +# Return true if the option described by FLAGS must have some state +# associated with it. +function needs_state_p(flags) +{ + return flag_set_p("Target", flags) +} + +# If FLAGS describes an option that needs a static state variable, +# return the name of that variable, otherwise return "". NAME is +# the name of the option. +function static_var(name, flags) +{ + if (global_state_p(flags) || !needs_state_p(flags)) + return "" + gsub ("[^A-Za-z0-9]", "_", name) + return "VAR_" name +} + # Return the type of variable that should be associated with the given flags. function var_type(flags) { @@ -128,11 +154,11 @@ function var_set(flags) return "CLVC_BOOLEAN, 0" } -# Given that an option has flags FLAGS, return an initializer for the -# "flag_var" field of its cl_options[] entry. -function var_ref(flags) +# Given that an option called NAME has flags FLAGS, return an initializer +# for the "flag_var" field of its cl_options[] entry. +function var_ref(name, flags) { - name = var_name(flags) + name = var_name(flags) static_var(name, flags) if (name != "") return "&" name if (opt_args("Mask", flags) != "") |