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|
#!/usr/athena/bin/perl
eval 'exec /usr/athena/bin/perl -S $0 ${1+"$@"}'
if $running_under_some_shell;
@convC = ();
@convK = ();
@convD = ();
open H, "<$ARGV[0]" || die "aaaa! $!";
open D, "<$ARGV[1]";
LINE:
while (! eof H) {
$_ = <H>;
chop;
# get calling convention info for function decls
# what about function pointer typedefs?
# need to verify unhandled syntax actually triggers a report, not ignored
# blank lines
if (/^[ \t]*$/) {
next LINE;
}
Top:
# drop preprocessor directives
if (/^ *#/) {
next LINE;
}
if (/^ *\?==/) {
next LINE;
}
s/#.*$//;
if (/^} *$/) {
next LINE;
}
# strip comments
Cloop1:
if (/\/\*./) {
s;/\*[^*]*;/*;;
s;/\*\*([^/]);/*$1;;
s;/\*\*$;/*;;
s;/\*\*/; ;g;
goto Cloop1;
}
# multi-line comments?
if (/\/\*$/) {
$_ .= "\n";
$len1 = length;
$_ .= <H>;
chop if $len1 < length;
goto Cloop1 if /\/\*./;
}
# blank lines
if (/^[ \t]*$/) {
next LINE;
}
if (/ *extern "C" {/) {
next LINE;
}
# elide struct definitions
Struct1:
if (/{[^}]*}/) {
s/{[^}]*}/ /g;
goto Struct1;
}
# multi-line defs
if (/{/) {
$_ .= "\n";
$len1 = length;
$_ .= <H>;
chop if $len1 < length;
goto Struct1;
}
Semi:
unless (/;/) {
$_ .= "\n";
$len1 = length;
$_ .= <H>;
chop if $len1 < length;
s/\n/ /g;
s/[ \t]+/ /g;
s/^[ \t]*//;
goto Top;
}
if (/^typedef[^;]*;/) {
s/^typedef[^;]*;//g;
goto Semi;
}
if (/^struct[^\(\)]*;/) {
s/^struct[^\(\)]*;//g;
goto Semi;
}
# should just have simple decls now; split lines at semicolons
s/ *;[ \t]*$//;
s/ *;/\n/g;
if (/^[ \t]*$/) {
next LINE;
}
s/[ \t]*$//;
goto Notfunct unless /\(.*\)/;
# here, is probably function decl
# strip simple arg list - parens, no parens inside; discard, iterate.
# the iteration should deal with function pointer args.
Striparg:
if (/ *\([^\(\)]*\)/) {
s/ *\([^\(\)]*\)//g;
goto Striparg;
}
# replace return type etc with one token indicating calling convention
if (/CALLCONV/) {
if (/KRB5_CALLCONV_C/) {
s/^.*KRB5_CALLCONV_C *//;
push @convC, $_;
} elsif (/KRB5_CALLCONV/) {
s/^.*KRB5_CALLCONV *//;
push @convK, $_;
} else {
die horribly;
}
goto Hadcallc;
}
# deal with no CALLCONV indicator
s/^.* (\w+) *$/$1/;
push @convD, $_;
Hadcallc:
goto Skipnotf;
Notfunct:
# probably a variable
s/^/VARIABLE_DECL /;
Skipnotf:
# toss blank lines
if (/^[ \t]*$/) {
next LINE;
}
}
print join("\n\t", "Using default calling convention:", sort(@convD));
print join("\n\t", "\nUsing KRB5_CALLCONV:", sort(@convK));
print join("\n\t", "\nUsing KRB5_C_CALLCONV:", sort(@convC));
print "\n";
%conv = ();
map { $conv{$_} = "default"; } @convD;
map { $conv{$_} = "KRB5"; } @convK;
map { $conv{$_} = "KRB5_C"; } @convC;
LINE2:
while (! eof D) {
$_ = <D>;
chop;
#
if (/^;/) {
$printit = 0;
next LINE2;
}
if (/^[ \t]*$/) {
$printit = 0;
next LINE2;
}
if (/^EXPORTS/) {
$printit = 0;
next LINE2;
}
s/[ \t]*//g;
my($xconv);
if (/!CALLCONV/) {
$xconv = "KRB5_C";
} else {
$xconv = "KRB5";
}
s/;.*$//;
if (!defined($conv{$_})) {
print "No calling convention specified for $_!\n";
} elsif ($conv{$_} != $xconv) {
print "Function $_ should have calling convention '$xconv', but has '$conv{$_}' instead.\n";
} else {
# print "Function $_ is okay.\n";
}
}
#print "Calling conventions defined for: ", keys(%conv);
|
