-# Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010
+# Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011
# Free Software Foundation, Inc.
# Contributed by Kelley Cook, June 2004.
# Original code from Neil Booth, May 2003.
# 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 ""
}
+# 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)
result = result \
test_flag("Common", flags, " | CL_COMMON") \
test_flag("Target", flags, " | CL_TARGET") \
- test_flag("Save", flags, " | CL_SAVE") \
+ 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("Warning", flags, " | CL_WARNING") \
- test_flag("Optimization", flags, " | CL_OPTIMIZATION") \
- test_flag("Report", flags, " | CL_REPORT")
+ test_flag("Optimization", flags, " | CL_OPTIMIZATION")
sub( "^0 \\| ", "", result )
return result
}
+# Return bit-field initializers for option flags FLAGS.
+function switch_bit_fields (flags)
+{
+ vn = var_name(flags);
+ if (host_wide_int[vn] == "yes")
+ hwi = "Host_Wide_Int"
+ else
+ hwi = ""
+ result = ""
+ sep_args = opt_args("Args", flags)
+ if (sep_args == "")
+ sep_args = 0
+ else
+ sep_args--
+ result = result sep_args ", "
+
+ 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) \
+ flag_init("UInteger", flags) \
+ flag_init("Host_Wide_Int", hwi) \
+ flag_init("ToLower", flags) \
+ flag_init("Report", flags)
+
+ 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)
{
# associated with it.
function needs_state_p(flags)
{
- return flag_set_p("Target", flags)
+ return (flag_set_p("Target", flags) \
+ && !flag_set_p("Alias.*", flags) \
+ && !flag_set_p("Ignore", 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.
+# 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 ("[^A-Za-z0-9]", "_", name)
+ 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("Joined.*", 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("UInteger", flags))
return "int "
{
if (flag_set_p("UInteger", flags))
return "int "
- else if (!flag_set_p("Joined.*", flags)) {
- if (flag_set_p(".*Mask.*", flags))
- 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 "
}
}
# 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 != "") {
vn = var_name(flags);
if (vn)
- return "CLVC_BIT_CLEAR, OPTION_MASK_" s
+ return "0, CLVC_BIT_CLEAR, OPTION_MASK_" s
else
- return "CLVC_BIT_CLEAR, MASK_" s
+ 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 "CLVC_STRING, 0"
- return "CLVC_BOOLEAN, 0"
+ return "0, CLVC_STRING, 0"
+ return "0, CLVC_BOOLEAN, 0"
}
# Given that an option called NAME has flags FLAGS, return an initializer
{
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 "-1"
}
# Given the option called NAME return a sanitized version of its name.
function opt_sanitized_name(name)
{
- if (name == "finline-limit=" || name == "Wlarger-than=" \
- || name == "ftemplate-depth=")
- name = name "eq"
- if (name == "gdwarf+")
- name = "gdwarfplus"
- gsub ("[^A-Za-z0-9]", "_", name)
+ gsub ("[^" alnum "]", "_", name)
return name
}
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