-# Copyright (C) 2003,2004 Free Software Foundation, Inc.
+# Copyright (C) 2003-2020 Free Software Foundation, Inc.
# Contributed by Kelley Cook, June 2004.
# Original code from Neil Booth, May 2003.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
-# Free Software Foundation; either version 2, or (at your option) any
+# Free Software Foundation; either version 3, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful,
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# along with this program; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
# Some common subroutines for use by opt[ch]-gen.awk.
+# Define some helpful character classes, for portability.
+BEGIN {
+ lower = "abcdefghijklmnopqrstuvwxyz"
+ upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ digit = "0123456789"
+ alnum = lower "" upper "" digit
+}
+
# Return nonzero if FLAGS contains a flag matching REGEX.
function flag_set_p(regex, flags)
{
- return (" " flags " ") ~ (" " regex " ")
+ # Ignore the arguments of flags with arguments.
+ gsub ("\\([^)]+\\)", "", flags);
+ return (" " flags " ") ~ (" " regex " ")
}
# Return STRING if FLAGS contains a flag matching regexp REGEX,
return ""
}
+# Return a field initializer, with trailing comma, for a field that is
+# 1 if FLAGS contains a flag matching REGEX and 0 otherwise.
+function flag_init(regex, flags)
+{
+ if (flag_set_p(regex, flags))
+ return "1 /* " regex " */, "
+ else
+ return "0, "
+}
+
# If FLAGS contains a "NAME(...argument...)" flag, return the value
# of the argument. Return the empty string otherwise.
function opt_args(name, flags)
if (flags !~ " " name "\\(")
return ""
sub(".* " name "\\(", "", flags)
- sub("\\).*", "", flags)
+ if (flags ~ "^[{]")
+ {
+ sub ("^[{]", "", flags)
+ sub ("}\\).*", "", flags)
+ }
+ else
+ sub("\\).*", "", flags)
return flags
}
result = result \
test_flag("Common", flags, " | CL_COMMON") \
test_flag("Target", flags, " | CL_TARGET") \
+ test_flag("PchIgnore", flags, " | CL_PCH_IGNORE") \
+ test_flag("Driver", flags, " | CL_DRIVER") \
test_flag("Joined", flags, " | CL_JOINED") \
- test_flag("JoinedOrMissing", flags, " | CL_JOINED | CL_MISSING_OK") \
+ test_flag("JoinedOrMissing", flags, " | CL_JOINED") \
test_flag("Separate", flags, " | CL_SEPARATE") \
- test_flag("RejectNegative", flags, " | CL_REJECT_NEGATIVE") \
- test_flag("UInteger", flags, " | CL_UINTEGER") \
test_flag("Undocumented", flags, " | CL_UNDOCUMENTED") \
- test_flag("Report", flags, " | CL_REPORT")
+ test_flag("NoDWARFRecord", flags, " | CL_NO_DWARF_RECORD") \
+ test_flag("Warning", flags, " | CL_WARNING") \
+ test_flag("(Optimization|PerFunction)", flags, " | CL_OPTIMIZATION") \
+ test_flag("Param", flags, " | CL_PARAMS")
sub( "^0 \\| ", "", result )
return result
}
+# Return bit-field initializers for option flags FLAGS.
+function switch_bit_fields (flags)
+{
+ uinteger_flag = ""
+ vn = var_name(flags);
+ if (host_wide_int[vn] == "yes")
+ hwi = "Host_Wide_Int"
+ else if (flag_set_p("Host_Wide_Int", flags)) {
+ hwi = "Host_Wide_Int"
+ uinteger_flag = flag_init("UInteger", flags)
+ }
+ else
+ hwi = ""
+ result = ""
+ sep_args = opt_args("Args", flags)
+ if (sep_args == "")
+ sep_args = 0
+ else
+ sep_args--
+ result = result sep_args ", "
+
+ if (uinteger_flag == "")
+ uinteger_flag = flag_init("UInteger", flags)
+
+ hwi_flag = flag_init("Host_Wide_Int", hwi)
+ byte_size_flag = flag_init("ByteSize", flags)
+
+ if (substr(byte_size_flag, 1, 1) != "0" \
+ && substr(uinteger_flag, 1, 1) == "0" \
+ && substr(hwi_flag, 1, 1) == "0")
+ print "#error only UInteger amd Host_Wide_Int options can specify a ByteSize suffix"
+
+ # The following flags need to be in the same order as
+ # the corresponding members of struct cl_option defined
+ # in gcc/opts.h.
+ result = result \
+ flag_init("SeparateAlias", flags) \
+ flag_init("NegativeAlias", flags) \
+ flag_init("NoDriverArg", flags) \
+ flag_init("RejectDriver", flags) \
+ flag_init("RejectNegative", flags) \
+ flag_init("JoinedOrMissing", flags) \
+ uinteger_flag \
+ hwi_flag \
+ flag_init("ToLower", flags) \
+ flag_init("Report", flags) \
+ byte_size_flag
+
+ sub(", $", "", result)
+ return result
+}
+
# If FLAGS includes a Var flag, return the name of the variable it specifies.
# Return the empty string otherwise.
function var_name(flags)
return nth_arg(0, opt_args("Var", flags))
}
+# Return the name of the variable if FLAGS has a HOST_WIDE_INT variable.
+# Return the empty string otherwise.
+function host_wide_int_var_name(flags)
+{
+ split (flags, array, "[ \t]+")
+ if (array[1] == "HOST_WIDE_INT")
+ return array[2]
+ else
+ return ""
+}
+
+# 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) \
+ && !flag_set_p("Alias.*", flags) \
+ && !flag_set_p("Ignore", flags))
+}
+
+# If FLAGS describes an option that needs state without a public
+# variable name, return the name of that field, minus the initial
+# "x_", 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 ("[^" alnum "]", "_", name)
+ return "VAR_" name
+}
+
+# Return the type of variable that should be associated with the given flags.
+function var_type(flags)
+{
+ if (flag_set_p("Defer", flags))
+ return "void *"
+ else if (flag_set_p("Enum.*", flags)) {
+ en = opt_args("Enum", flags);
+ return enum_type[en] " "
+ }
+ else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags))
+ return "int "
+ else if (flag_set_p("Host_Wide_Int", flags))
+ return "HOST_WIDE_INT "
+ else if (flag_set_p("UInteger", flags))
+ return "int "
+ else
+ return "const char *"
+}
+
+# Return the type of variable that should be associated with the given flags
+# for use within a structure. Simple variables are changed to signed char
+# type instead of int to save space.
+function var_type_struct(flags)
+{
+ if (flag_set_p("UInteger", flags)) {
+ if (host_wide_int[var_name(flags)] == "yes")
+ return "HOST_WIDE_INT ";
+ if (flag_set_p("ByteSize", flags))
+ return "HOST_WIDE_INT "
+ return "int "
+ }
+ else if (flag_set_p("Enum.*", flags)) {
+ en = opt_args("Enum", flags);
+ return enum_type[en] " "
+ }
+ else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) {
+ if (flag_set_p(".*Mask.*", flags)) {
+ if (host_wide_int[var_name(flags)] == "yes")
+ return "HOST_WIDE_INT "
+ else
+ return "/* - */ int "
+ }
+ else
+ return "signed char "
+ }
+ else
+ return "const char *"
+}
+
# Given that an option has flags FLAGS, return an initializer for the
-# "var_cond" and "var_value" fields of its cl_options[] entry.
+# "var_enum", "var_type" and "var_value" fields of its cl_options[] entry.
function var_set(flags)
{
+ if (flag_set_p("Defer", flags))
+ return "0, CLVC_DEFER, 0"
s = nth_arg(1, opt_args("Var", flags))
if (s != "")
- return "CLVC_EQUAL, " s
+ return "0, CLVC_EQUAL, " s
s = opt_args("Mask", flags);
if (s != "") {
vn = var_name(flags);
if (vn)
- return "CLVC_BIT_SET, OPTION_MASK_" s
+ return "0, CLVC_BIT_SET, OPTION_MASK_" s
else
- return "CLVC_BIT_SET, MASK_" s
+ return "0, CLVC_BIT_SET, MASK_" s
}
s = nth_arg(0, opt_args("InverseMask", flags));
- if (s != "")
- return "CLVC_BIT_CLEAR, MASK_" s
- return "CLVC_BOOLEAN, 0"
+ if (s != "") {
+ vn = var_name(flags);
+ if (vn)
+ return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s
+ else
+ return "0, CLVC_BIT_CLEAR, MASK_" s
+ }
+ if (flag_set_p("Enum.*", flags)) {
+ en = opt_args("Enum", flags);
+ return enum_index[en] ", CLVC_ENUM, 0"
+ }
+ if (var_type(flags) == "const char *")
+ return "0, CLVC_STRING, 0"
+ if (flag_set_p("ByteSize", flags))
+ return "0, CLVC_SIZE, 0"
+ return "0, 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
+ return "offsetof (struct gcc_options, x_" name ")"
if (opt_args("Mask", flags) != "")
- return "&target_flags"
+ return "offsetof (struct gcc_options, x_target_flags)"
if (opt_args("InverseMask", flags) != "")
- return "&target_flags"
- return "0"
+ return "offsetof (struct gcc_options, x_target_flags)"
+ return "(unsigned short) -1"
+}
+
+# Given the option called NAME return a sanitized version of its name.
+function opt_sanitized_name(name)
+{
+ gsub ("[^" alnum "]", "_", name)
+ return name
+}
+
+# Given the option called NAME return the appropriate enum for it.
+function opt_enum(name)
+{
+ return "OPT_" opt_sanitized_name(name)
+}
+
+# Given the language called NAME return a sanitized version of its name.
+function lang_sanitized_name(name)
+{
+ gsub( "[^" alnum "_]", "X", name )
+ return name
+}
+
+# Search for a valid var_name among all OPTS equal to option NAME.
+# If not found, return "".
+function search_var_name(name, opt_numbers, opts, flags, n_opts)
+{
+ opt_var_name = var_name(flags[opt_numbers[name]]);
+ if (opt_var_name != "") {
+ return opt_var_name;
+ }
+ for (k = 0; k < n_opts; k++) {
+ if (opts[k] == name && var_name(flags[k]) != "") {
+ return var_name(flags[k]);
+ }
+ }
+ return ""
+}
+
+function integer_range_info(range_option, init, option)
+{
+ if (range_option != "") {
+ ival = init + 0;
+ start = nth_arg(0, range_option) + 0;
+ end = nth_arg(1, range_option) + 0;
+ if (init != "" && init != "-1" && (ival < start || ival > end))
+ print "#error initial value " init " of '" option "' must be in range [" start "," end "]"
+ return start ", " end
+ }
+ else
+ return "-1, -1"
+}
+
+# Handle LangEnabledBy(ENABLED_BY_LANGS, ENABLEDBY_NAME, ENABLEDBY_POSARG,
+# ENABLEDBY_NEGARG). This function does not return anything.
+function lang_enabled_by(enabledby_langs, enabledby_name, enabledby_posarg, enabledby_negarg)
+{
+ n_enabledby_arg_langs = split(enabledby_langs, enabledby_arg_langs, " ");
+ if (enabledby_posarg != "" && enabledby_negarg != "") {
+ with_args = "," enabledby_posarg "," enabledby_negarg
+ } else if (enabledby_posarg == "" && enabledby_negarg == "") {
+ with_args = ""
+ } else {
+ print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \
+ enabledby_posarg", " enabledby_negargs \
+ ") with three arguments, it should have either 2 or 4"
+ }
+
+ n_enabledby_array = split(enabledby_name, enabledby_array, " \\|\\| ");
+ for (k = 1; k <= n_enabledby_array; k++) {
+ enabledby_index = opt_numbers[enabledby_array[k]];
+ if (enabledby_index == "") {
+ print "#error " opts[i] " LangEnabledBy("enabledby_langs","enabledby_name", " \
+ enabledby_posarg", " enabledby_negargs"), unknown option '" enabledby_name "'"
+ } else {
+ for (j = 1; j <= n_enabledby_arg_langs; j++) {
+ lang_name = lang_sanitized_name(enabledby_arg_langs[j]);
+ lang_index = lang_numbers[enabledby_arg_langs[j]];
+ if (enables[lang_name,enabledby_array[k]] == "") {
+ enabledby[lang_name,n_enabledby_lang[lang_index]] = enabledby_array[k];
+ n_enabledby_lang[lang_index]++;
+ }
+ enables[lang_name,enabledby_array[k]] \
+ = enables[lang_name,enabledby_array[k]] opts[i] with_args ";";
+ }
+ }
+ }
}
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