| 1 |
684 |
jeremybenn |
# Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011
|
| 2 |
|
|
# Free Software Foundation, Inc.
|
| 3 |
|
|
# Contributed by Kelley Cook, June 2004.
|
| 4 |
|
|
# Original code from Neil Booth, May 2003.
|
| 5 |
|
|
#
|
| 6 |
|
|
# This program is free software; you can redistribute it and/or modify it
|
| 7 |
|
|
# under the terms of the GNU General Public License as published by the
|
| 8 |
|
|
# Free Software Foundation; either version 3, or (at your option) any
|
| 9 |
|
|
# later version.
|
| 10 |
|
|
#
|
| 11 |
|
|
# This program is distributed in the hope that it will be useful,
|
| 12 |
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 14 |
|
|
# GNU General Public License for more details.
|
| 15 |
|
|
#
|
| 16 |
|
|
# You should have received a copy of the GNU General Public License
|
| 17 |
|
|
# along with this program; see the file COPYING3. If not see
|
| 18 |
|
|
# <http://www.gnu.org/licenses/>.
|
| 19 |
|
|
|
| 20 |
|
|
# Some common subroutines for use by opt[ch]-gen.awk.
|
| 21 |
|
|
|
| 22 |
|
|
# Define some helpful character classes, for portability.
|
| 23 |
|
|
BEGIN {
|
| 24 |
|
|
lower = "abcdefghijklmnopqrstuvwxyz"
|
| 25 |
|
|
upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
| 26 |
|
|
digit = "0123456789"
|
| 27 |
|
|
alnum = lower "" upper "" digit
|
| 28 |
|
|
}
|
| 29 |
|
|
|
| 30 |
|
|
# Return nonzero if FLAGS contains a flag matching REGEX.
|
| 31 |
|
|
function flag_set_p(regex, flags)
|
| 32 |
|
|
{
|
| 33 |
|
|
return (" " flags " ") ~ (" " regex " ")
|
| 34 |
|
|
}
|
| 35 |
|
|
|
| 36 |
|
|
# Return STRING if FLAGS contains a flag matching regexp REGEX,
|
| 37 |
|
|
# otherwise return the empty string.
|
| 38 |
|
|
function test_flag(regex, flags, string)
|
| 39 |
|
|
{
|
| 40 |
|
|
if (flag_set_p(regex, flags))
|
| 41 |
|
|
return string
|
| 42 |
|
|
return ""
|
| 43 |
|
|
}
|
| 44 |
|
|
|
| 45 |
|
|
# Return a field initializer, with trailing comma, for a field that is
|
| 46 |
|
|
# 1 if FLAGS contains a flag matching REGEX and 0 otherwise.
|
| 47 |
|
|
function flag_init(regex, flags)
|
| 48 |
|
|
{
|
| 49 |
|
|
if (flag_set_p(regex, flags))
|
| 50 |
|
|
return "1 /* " regex " */, "
|
| 51 |
|
|
else
|
| 52 |
|
|
return "0, "
|
| 53 |
|
|
}
|
| 54 |
|
|
|
| 55 |
|
|
# If FLAGS contains a "NAME(...argument...)" flag, return the value
|
| 56 |
|
|
# of the argument. Return the empty string otherwise.
|
| 57 |
|
|
function opt_args(name, flags)
|
| 58 |
|
|
{
|
| 59 |
|
|
flags = " " flags
|
| 60 |
|
|
if (flags !~ " " name "\\(")
|
| 61 |
|
|
return ""
|
| 62 |
|
|
sub(".* " name "\\(", "", flags)
|
| 63 |
|
|
if (flags ~ "^{")
|
| 64 |
|
|
{
|
| 65 |
|
|
sub ("^{", "", flags)
|
| 66 |
|
|
sub("}\\).*", "", flags)
|
| 67 |
|
|
}
|
| 68 |
|
|
else
|
| 69 |
|
|
sub("\\).*", "", flags)
|
| 70 |
|
|
|
| 71 |
|
|
return flags
|
| 72 |
|
|
}
|
| 73 |
|
|
|
| 74 |
|
|
# Return the Nth comma-separated element of S. Return the empty string
|
| 75 |
|
|
# if S does not contain N elements.
|
| 76 |
|
|
function nth_arg(n, s)
|
| 77 |
|
|
{
|
| 78 |
|
|
while (n-- > 0) {
|
| 79 |
|
|
if (s !~ ",")
|
| 80 |
|
|
return ""
|
| 81 |
|
|
sub("[^,]*, *", "", s)
|
| 82 |
|
|
}
|
| 83 |
|
|
sub(",.*", "", s)
|
| 84 |
|
|
return s
|
| 85 |
|
|
}
|
| 86 |
|
|
|
| 87 |
|
|
# Return a bitmask of CL_* values for option flags FLAGS.
|
| 88 |
|
|
function switch_flags (flags)
|
| 89 |
|
|
{
|
| 90 |
|
|
result = "0"
|
| 91 |
|
|
for (j = 0; j < n_langs; j++) {
|
| 92 |
|
|
regex = langs[j]
|
| 93 |
|
|
gsub ( "\\+", "\\+", regex )
|
| 94 |
|
|
result = result test_flag(regex, flags, " | " macros[j])
|
| 95 |
|
|
}
|
| 96 |
|
|
result = result \
|
| 97 |
|
|
test_flag("Common", flags, " | CL_COMMON") \
|
| 98 |
|
|
test_flag("Target", flags, " | CL_TARGET") \
|
| 99 |
|
|
test_flag("Driver", flags, " | CL_DRIVER") \
|
| 100 |
|
|
test_flag("Joined", flags, " | CL_JOINED") \
|
| 101 |
|
|
test_flag("JoinedOrMissing", flags, " | CL_JOINED") \
|
| 102 |
|
|
test_flag("Separate", flags, " | CL_SEPARATE") \
|
| 103 |
|
|
test_flag("Undocumented", flags, " | CL_UNDOCUMENTED") \
|
| 104 |
|
|
test_flag("Warning", flags, " | CL_WARNING") \
|
| 105 |
|
|
test_flag("Optimization", flags, " | CL_OPTIMIZATION")
|
| 106 |
|
|
sub( "^0 \\| ", "", result )
|
| 107 |
|
|
return result
|
| 108 |
|
|
}
|
| 109 |
|
|
|
| 110 |
|
|
# Return bit-field initializers for option flags FLAGS.
|
| 111 |
|
|
function switch_bit_fields (flags)
|
| 112 |
|
|
{
|
| 113 |
|
|
vn = var_name(flags);
|
| 114 |
|
|
if (host_wide_int[vn] == "yes")
|
| 115 |
|
|
hwi = "Host_Wide_Int"
|
| 116 |
|
|
else
|
| 117 |
|
|
hwi = ""
|
| 118 |
|
|
result = ""
|
| 119 |
|
|
sep_args = opt_args("Args", flags)
|
| 120 |
|
|
if (sep_args == "")
|
| 121 |
|
|
sep_args = 0
|
| 122 |
|
|
else
|
| 123 |
|
|
sep_args--
|
| 124 |
|
|
result = result sep_args ", "
|
| 125 |
|
|
|
| 126 |
|
|
result = result \
|
| 127 |
|
|
flag_init("SeparateAlias", flags) \
|
| 128 |
|
|
flag_init("NegativeAlias", flags) \
|
| 129 |
|
|
flag_init("NoDriverArg", flags) \
|
| 130 |
|
|
flag_init("RejectDriver", flags) \
|
| 131 |
|
|
flag_init("RejectNegative", flags) \
|
| 132 |
|
|
flag_init("JoinedOrMissing", flags) \
|
| 133 |
|
|
flag_init("UInteger", flags) \
|
| 134 |
|
|
flag_init("Host_Wide_Int", hwi) \
|
| 135 |
|
|
flag_init("ToLower", flags) \
|
| 136 |
|
|
flag_init("Report", flags)
|
| 137 |
|
|
|
| 138 |
|
|
sub(", $", "", result)
|
| 139 |
|
|
return result
|
| 140 |
|
|
}
|
| 141 |
|
|
|
| 142 |
|
|
# If FLAGS includes a Var flag, return the name of the variable it specifies.
|
| 143 |
|
|
# Return the empty string otherwise.
|
| 144 |
|
|
function var_name(flags)
|
| 145 |
|
|
{
|
| 146 |
|
|
return nth_arg(0, opt_args("Var", flags))
|
| 147 |
|
|
}
|
| 148 |
|
|
|
| 149 |
|
|
# Return the name of the variable if FLAGS has a HOST_WIDE_INT variable.
|
| 150 |
|
|
# Return the empty string otherwise.
|
| 151 |
|
|
function host_wide_int_var_name(flags)
|
| 152 |
|
|
{
|
| 153 |
|
|
split (flags, array, "[ \t]+")
|
| 154 |
|
|
if (array[1] == "HOST_WIDE_INT")
|
| 155 |
|
|
return array[2]
|
| 156 |
|
|
else
|
| 157 |
|
|
return ""
|
| 158 |
|
|
}
|
| 159 |
|
|
|
| 160 |
|
|
# Return true if the option described by FLAGS has a globally-visible state.
|
| 161 |
|
|
function global_state_p(flags)
|
| 162 |
|
|
{
|
| 163 |
|
|
return (var_name(flags) != "" \
|
| 164 |
|
|
|| opt_args("Mask", flags) != "" \
|
| 165 |
|
|
|| opt_args("InverseMask", flags) != "")
|
| 166 |
|
|
}
|
| 167 |
|
|
|
| 168 |
|
|
# Return true if the option described by FLAGS must have some state
|
| 169 |
|
|
# associated with it.
|
| 170 |
|
|
function needs_state_p(flags)
|
| 171 |
|
|
{
|
| 172 |
|
|
return (flag_set_p("Target", flags) \
|
| 173 |
|
|
&& !flag_set_p("Alias.*", flags) \
|
| 174 |
|
|
&& !flag_set_p("Ignore", flags))
|
| 175 |
|
|
}
|
| 176 |
|
|
|
| 177 |
|
|
# If FLAGS describes an option that needs state without a public
|
| 178 |
|
|
# variable name, return the name of that field, minus the initial
|
| 179 |
|
|
# "x_", otherwise return "". NAME is the name of the option.
|
| 180 |
|
|
function static_var(name, flags)
|
| 181 |
|
|
{
|
| 182 |
|
|
if (global_state_p(flags) || !needs_state_p(flags))
|
| 183 |
|
|
return ""
|
| 184 |
|
|
gsub ("[^" alnum "]", "_", name)
|
| 185 |
|
|
return "VAR_" name
|
| 186 |
|
|
}
|
| 187 |
|
|
|
| 188 |
|
|
# Return the type of variable that should be associated with the given flags.
|
| 189 |
|
|
function var_type(flags)
|
| 190 |
|
|
{
|
| 191 |
|
|
if (flag_set_p("Defer", flags))
|
| 192 |
|
|
return "void *"
|
| 193 |
|
|
else if (flag_set_p("Enum.*", flags)) {
|
| 194 |
|
|
en = opt_args("Enum", flags);
|
| 195 |
|
|
return enum_type[en] " "
|
| 196 |
|
|
}
|
| 197 |
|
|
else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags))
|
| 198 |
|
|
return "int "
|
| 199 |
|
|
else if (flag_set_p("UInteger", flags))
|
| 200 |
|
|
return "int "
|
| 201 |
|
|
else
|
| 202 |
|
|
return "const char *"
|
| 203 |
|
|
}
|
| 204 |
|
|
|
| 205 |
|
|
# Return the type of variable that should be associated with the given flags
|
| 206 |
|
|
# for use within a structure. Simple variables are changed to signed char
|
| 207 |
|
|
# type instead of int to save space.
|
| 208 |
|
|
function var_type_struct(flags)
|
| 209 |
|
|
{
|
| 210 |
|
|
if (flag_set_p("UInteger", flags))
|
| 211 |
|
|
return "int "
|
| 212 |
|
|
else if (flag_set_p("Enum.*", flags)) {
|
| 213 |
|
|
en = opt_args("Enum", flags);
|
| 214 |
|
|
return enum_type[en] " "
|
| 215 |
|
|
}
|
| 216 |
|
|
else if (!flag_set_p("Joined.*", flags) && !flag_set_p("Separate", flags)) {
|
| 217 |
|
|
if (flag_set_p(".*Mask.*", flags)) {
|
| 218 |
|
|
if (host_wide_int[var_name(flags)] == "yes")
|
| 219 |
|
|
return "HOST_WIDE_INT "
|
| 220 |
|
|
else
|
| 221 |
|
|
return "int "
|
| 222 |
|
|
}
|
| 223 |
|
|
else
|
| 224 |
|
|
return "signed char "
|
| 225 |
|
|
}
|
| 226 |
|
|
else
|
| 227 |
|
|
return "const char *"
|
| 228 |
|
|
}
|
| 229 |
|
|
|
| 230 |
|
|
# Given that an option has flags FLAGS, return an initializer for the
|
| 231 |
|
|
# "var_enum", "var_type" and "var_value" fields of its cl_options[] entry.
|
| 232 |
|
|
function var_set(flags)
|
| 233 |
|
|
{
|
| 234 |
|
|
if (flag_set_p("Defer", flags))
|
| 235 |
|
|
return "0, CLVC_DEFER, 0"
|
| 236 |
|
|
s = nth_arg(1, opt_args("Var", flags))
|
| 237 |
|
|
if (s != "")
|
| 238 |
|
|
return "0, CLVC_EQUAL, " s
|
| 239 |
|
|
s = opt_args("Mask", flags);
|
| 240 |
|
|
if (s != "") {
|
| 241 |
|
|
vn = var_name(flags);
|
| 242 |
|
|
if (vn)
|
| 243 |
|
|
return "0, CLVC_BIT_SET, OPTION_MASK_" s
|
| 244 |
|
|
else
|
| 245 |
|
|
return "0, CLVC_BIT_SET, MASK_" s
|
| 246 |
|
|
}
|
| 247 |
|
|
s = nth_arg(0, opt_args("InverseMask", flags));
|
| 248 |
|
|
if (s != "") {
|
| 249 |
|
|
vn = var_name(flags);
|
| 250 |
|
|
if (vn)
|
| 251 |
|
|
return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s
|
| 252 |
|
|
else
|
| 253 |
|
|
return "0, CLVC_BIT_CLEAR, MASK_" s
|
| 254 |
|
|
}
|
| 255 |
|
|
if (flag_set_p("Enum.*", flags)) {
|
| 256 |
|
|
en = opt_args("Enum", flags);
|
| 257 |
|
|
return enum_index[en] ", CLVC_ENUM, 0"
|
| 258 |
|
|
}
|
| 259 |
|
|
if (var_type(flags) == "const char *")
|
| 260 |
|
|
return "0, CLVC_STRING, 0"
|
| 261 |
|
|
return "0, CLVC_BOOLEAN, 0"
|
| 262 |
|
|
}
|
| 263 |
|
|
|
| 264 |
|
|
# Given that an option called NAME has flags FLAGS, return an initializer
|
| 265 |
|
|
# for the "flag_var" field of its cl_options[] entry.
|
| 266 |
|
|
function var_ref(name, flags)
|
| 267 |
|
|
{
|
| 268 |
|
|
name = var_name(flags) static_var(name, flags)
|
| 269 |
|
|
if (name != "")
|
| 270 |
|
|
return "offsetof (struct gcc_options, x_" name ")"
|
| 271 |
|
|
if (opt_args("Mask", flags) != "")
|
| 272 |
|
|
return "offsetof (struct gcc_options, x_target_flags)"
|
| 273 |
|
|
if (opt_args("InverseMask", flags) != "")
|
| 274 |
|
|
return "offsetof (struct gcc_options, x_target_flags)"
|
| 275 |
|
|
return "-1"
|
| 276 |
|
|
}
|
| 277 |
|
|
|
| 278 |
|
|
# Given the option called NAME return a sanitized version of its name.
|
| 279 |
|
|
function opt_sanitized_name(name)
|
| 280 |
|
|
{
|
| 281 |
|
|
gsub ("[^" alnum "]", "_", name)
|
| 282 |
|
|
return name
|
| 283 |
|
|
}
|
| 284 |
|
|
|
| 285 |
|
|
# Given the option called NAME return the appropriate enum for it.
|
| 286 |
|
|
function opt_enum(name)
|
| 287 |
|
|
{
|
| 288 |
|
|
return "OPT_" opt_sanitized_name(name)
|
| 289 |
|
|
}
|
