#!/usr/bin/perl
-# Copyright (C) 2013-2014 Free Software Foundation, Inc.
+# Copyright (C) 2013-2020 Free Software Foundation, Inc.
#
# This file is part of GDB.
#
# Match a C symbol.
$SYMBOL = qr,[a-zA-Z_][a-zA-Z0-9_]*,;
# Match the name part of a method in struct target_ops.
-$NAME_PART = qr,\(\*(?<name>${SYMBOL}+)\)\s,;
+$NAME_PART = qr,(?<name>${SYMBOL}+)\s,;
# Match the arguments to a method.
$ARGS_PART = qr,(?<args>\(.*\)),;
# We strip the indentation so here we only need the caret.
$INTRO_PART = qr,^,;
+$POINTER_PART = qr,\s*(\*)?\s*,;
+
+# Match a C++ symbol, including scope operators and template
+# parameters. E.g., 'std::vector<something>'.
+$CP_SYMBOL = qr,[a-zA-Z_][a-zA-Z0-9_<>:]*,;
# Match the return type when it is "ordinary".
-$SIMPLE_RETURN_PART = qr,[^\(]+,;
-# Match the return type when it is a VEC.
-$VEC_RETURN_PART = qr,VEC\s*\([^\)]+\)[^\(]*,;
+$SIMPLE_RETURN_PART = qr,((struct|class|enum|union)\s+)?${CP_SYMBOL}+,;
+
+# Match a return type.
+$RETURN_PART = qr,((const|volatile)\s+)?(${SIMPLE_RETURN_PART})${POINTER_PART},;
+
+# Match "virtual".
+$VIRTUAL_PART = qr,virtual\s,;
# Match the TARGET_DEFAULT_* attribute for a method.
$TARGET_DEFAULT_PART = qr,TARGET_DEFAULT_(?<style>[A-Z_]+)\s*\((?<default_arg>.*)\),;
$METHOD_TRAILER = qr,\s*${TARGET_DEFAULT_PART}$,;
# Match an entire method definition.
-$METHOD = ($INTRO_PART . "(?<return_type>" . $SIMPLE_RETURN_PART
- . "|" . $VEC_RETURN_PART . ")"
+$METHOD = ($INTRO_PART . $VIRTUAL_PART . "(?<return_type>" . $RETURN_PART . ")"
. $NAME_PART . $ARGS_PART
. $METHOD_TRAILER);
next if /{/;
last if m/$ENDER/;
- # Just in case somebody ever uses C99.
+ # Strip // comments.
$_ =~ s,//.*$,,;
- $_ = trim ($_);
$all_the_text .= $_;
}
# Now strip out the C comments.
$all_the_text =~ s,/\*(.*?)\*/,,g;
+ # Replace sequences of tabs and/or whitespace with a single
+ # whitespace character. We need the whitespace because the method
+ # may have been split between multiple lines, like e.g.:
+ #
+ # virtual std::vector<long_type_name>
+ # my_long_method_name ()
+ # TARGET_DEFAULT_IGNORE ();
+ #
+ # If we didn't preserve the whitespace, then we'd end up with:
+ #
+ # virtual std::vector<long_type_name>my_long_method_name ()TARGET_DEFAULT_IGNORE ()
+ #
+ # ... which wouldn't later be parsed correctly.
+ $all_the_text =~ s/[\t\s]+/ /g;
+
return split (/;/, $all_the_text);
}
foreach $iter (@typelist) {
if ($iter =~ m/^(enum\s+${SYMBOL}\s*)(${SYMBOL})?$/) {
$onetype = $1;
- } elsif ($iter =~ m/^(.*(enum\s+)?${SYMBOL}.*(\s|\*))${SYMBOL}+$/) {
+ } elsif ($iter =~ m/^(.*(enum\s+)?${SYMBOL}.*(\s|\*|&))${SYMBOL}+$/) {
$onetype = $1;
} elsif ($iter eq 'void') {
next;
sub dname($) {
my ($name) = @_;
- $name =~ s/to_/delegate_/;
- return $name;
+ return "target_ops::" . $name;
}
# Write function header given name, return type, and argtypes.
# Returns a list of actual argument names.
-sub write_function_header($$@) {
- my ($name, $return_type, @argtypes) = @_;
+sub write_function_header($$$@) {
+ my ($decl, $name, $return_type, @argtypes) = @_;
+
+ print $return_type;
+
+ if ($decl) {
+ if ($return_type !~ m,\*$,) {
+ print " ";
+ }
+ } else {
+ print "\n";
+ }
- print "static " . $return_type . "\n";
print $name . ' (';
my $iter;
$val =~ s/$TARGET_DEBUG_PRINTER//;
- if ($iter !~ m,\*$,) {
+ if ($iter !~ m,(\*|&)$,) {
$val .= ' ';
}
my $vname;
- if ($i == 0) {
- # Just a random nicety.
- $vname = 'self';
- } else {
- $vname .= "arg$i";
- }
+ $vname .= "arg$i";
$val .= $vname;
push @argdecls, $val;
++$i;
}
- print join (', ', @argdecls) . ")\n";
- print "{\n";
+ print join (', ', @argdecls) . ")";
+
+ if ($decl) {
+ print " override;\n";
+ } else {
+ print "\n{\n";
+ }
return @actuals;
}
+# Write out a declaration.
+sub write_declaration($$@) {
+ my ($name, $return_type, @argtypes) = @_;
+
+ write_function_header (1, $name, $return_type, @argtypes);
+}
+
# Write out a delegation function.
sub write_delegator($$@) {
my ($name, $return_type, @argtypes) = @_;
- my (@names) = write_function_header (dname ($name), $return_type,
- @argtypes);
+ my (@names) = write_function_header (0, dname ($name),
+ $return_type, @argtypes);
- print " $names[0] = $names[0]->beneath;\n";
print " ";
if ($return_type ne 'void') {
print "return ";
}
- print "$names[0]->" . $name . " (";
+ print "this->beneath ()->" . $name . " (";
print join (', ', @names);
print ");\n";
print "}\n\n";
sub tdname ($) {
my ($name) = @_;
- $name =~ s/to_/tdefault_/;
- return $name;
+ return "dummy_target::" . $name;
}
# Write out a default function.
sub write_tdefault($$$$@) {
my ($content, $style, $name, $return_type, @argtypes) = @_;
- if ($style eq 'FUNC') {
- return $content;
- }
+ my (@names) = write_function_header (0, tdname ($name),
+ $return_type, @argtypes);
- write_function_header (tdname ($name), $return_type, @argtypes);
-
- if ($style eq 'RETURN') {
+ if ($style eq 'FUNC') {
+ print " ";
+ if ($return_type ne 'void') {
+ print "return ";
+ }
+ print $content . " (this";
+ if (@names) {
+ print ", ";
+ }
+ print join (', ', @names);
+ print ");\n";
+ } elsif ($style eq 'RETURN') {
print " return $content;\n";
} elsif ($style eq 'NORETURN') {
print " $content;\n";
$result = $1;
} else {
($result = $typename) =~ s/\s+$//;
- $result =~ s/[ ()]/_/g;
+ $result =~ s/[ ()<>:]/_/g;
$result =~ s/[*]/p/g;
+ $result =~ s/&/r/g;
+
+ # Identifers with double underscores are reserved to the C++
+ # implementation.
+ $result =~ s/_+/_/g;
+
+ # Avoid ending the function name with underscore, for
+ # cosmetics. Trailing underscores appear after munging types
+ # with template parameters, like e.g. "foo<int>".
+ $result =~ s/_$//g;
+
$result = 'target_debug_print_' . $result;
}
}
# Write out a debug method.
-sub write_debugmethod($$$$@) {
- my ($content, $style, $name, $return_type, @argtypes) = @_;
+sub write_debugmethod($$$@) {
+ my ($content, $name, $return_type, @argtypes) = @_;
- my ($debugname) = $name;
- $debugname =~ s/to_/debug_/;
+ my ($debugname) = "debug_target::" . $name;
my ($targetname) = $name;
- $targetname =~ s/to_/target_/;
- my (@names) = write_function_header ($debugname, $return_type, @argtypes);
+ my (@names) = write_function_header (0, $debugname, $return_type, @argtypes);
if ($return_type ne 'void') {
print " $return_type result;\n";
}
- print " fprintf_unfiltered (gdb_stdlog, \"-> %s->$name (...)\\n\", debug_target.to_shortname);\n";
+ print " fprintf_unfiltered (gdb_stdlog, \"-> %s->$name (...)\\n\", this->beneath ()->shortname ());\n";
# Delegate to the beneath target.
print " ";
if ($return_type ne 'void') {
print "result = ";
}
- print "debug_target." . $name . " (";
- my @names2 = @names;
- @names2[0] = "&debug_target";
- print join (', ', @names2);
+ print "this->beneath ()->" . $name . " (";
+ print join (', ', @names);
print ");\n";
# Now print the arguments.
- print " fprintf_unfiltered (gdb_stdlog, \"<- %s->$name (\", debug_target.to_shortname);\n";
+ print " fprintf_unfiltered (gdb_stdlog, \"<- %s->$name (\", this->beneath ()->shortname ());\n";
for my $i (0 .. $#argtypes) {
- print " fputs_unfiltered (\", \", gdb_stdlog);\n" if $i > 0;
+ if ($i > 0) {
+ print " fputs_unfiltered (\", \", gdb_stdlog);\n"
+ }
my $printer = munge_type ($argtypes[$i]);
- print " $printer ($names2[$i]);\n";
+ print " $printer ($names[$i]);\n";
}
if ($return_type ne 'void') {
print " fputs_unfiltered (\") = \", gdb_stdlog);\n";
print "/* vi:set ro: */\n\n";
print "/* To regenerate this file, run:*/\n";
print "/* make-target-delegates target.h > target-delegates.c */\n";
+print "\n";
@lines = scan_target_h();
-
-%tdefault_names = ();
-%debug_names = ();
@delegators = ();
+@return_types = ();
+@tdefaults = ();
+@styles = ();
+@argtypes_array = ();
+
foreach $current_line (@lines) {
+ # See comments in scan_target_h. Here we strip away the leading
+ # and trailing whitespace.
+ $current_line = trim ($current_line);
+
next unless $current_line =~ m/$METHOD/;
- $name = $+{name};
- $current_line = $+{args};
- $return_type = trim ($+{return_type});
- $current_args = $+{args};
- $tdefault = $+{default_arg};
- $style = $+{style};
+ my $name = $+{name};
+ my $current_line = $+{args};
+ my $return_type = trim ($+{return_type});
+ my $current_args = $+{args};
+ my $tdefault = $+{default_arg};
+ my $style = $+{style};
+
+ my @argtypes = parse_argtypes ($current_args);
- @argtypes = parse_argtypes ($current_args);
+ push @delegators, $name;
+
+ $return_types{$name} = $return_type;
+ $tdefaults{$name} = $tdefault;
+ $styles{$name} = $style;
+ $argtypes_array{$name} = \@argtypes;
+}
- # The first argument must be "this" to be delegatable.
- if ($argtypes[0] =~ /\s*struct\s+target_ops\s*\*\s*/) {
- write_delegator ($name, $return_type, @argtypes);
+sub print_class($) {
+ my ($name) = @_;
- push @delegators, $name;
+ print "struct " . $name . " : public target_ops\n";
+ print "{\n";
+ print " const target_info &info () const override;\n";
+ print "\n";
+ print " strata stratum () const override;\n";
+ print "\n";
- $tdefault_names{$name} = write_tdefault ($tdefault, $style,
- $name, $return_type,
- @argtypes);
+ for $name (@delegators) {
+ my $return_type = $return_types{$name};
+ my @argtypes = @{$argtypes_array{$name}};
- $debug_names{$name} = write_debugmethod ($tdefault, $style,
- $name, $return_type,
- @argtypes);
+ print " ";
+ write_declaration ($name, $return_type, @argtypes);
}
+
+ print "};\n\n";
}
-# Now the delegation code.
-print "static void\ninstall_delegators (struct target_ops *ops)\n{\n";
+print_class ("dummy_target");
+print_class ("debug_target");
-for $iter (@delegators) {
- print " if (ops->" . $iter . " == NULL)\n";
- print " ops->" . $iter . " = " . dname ($iter) . ";\n";
-}
-print "}\n\n";
+for $name (@delegators) {
+ my $tdefault = $tdefaults{$name};
+ my $return_type = $return_types{$name};
+ my $style = $styles{$name};
+ my @argtypes = @{$argtypes_array{$name}};
-# Now the default method code.
-print "static void\ninstall_dummy_methods (struct target_ops *ops)\n{\n";
+ write_delegator ($name, $return_type, @argtypes);
-for $iter (@delegators) {
- print " ops->" . $iter . " = " . $tdefault_names{$iter} . ";\n";
-}
-print "}\n\n";
+ write_tdefault ($tdefault, $style, $name, $return_type, @argtypes);
-# The debug method code.
-print "static void\ninit_debug_target (struct target_ops *ops)\n{\n";
-for $iter (@delegators) {
- print " ops->" . $iter . " = " . $debug_names{$iter} . ";\n";
+ write_debugmethod ($tdefault, $name, $return_type, @argtypes);
}
-print "}\n";
projects / deliverable / binutils-gdb.git / blobdiff