summaryrefslogtreecommitdiff
path: root/make/run-cc.pl
blob: 07f6ace9890888c956021eb60e7328780b7ed42b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
#!/usr/bin/perl

#       +------------------------------------+
#       | Inspire Internet Relay Chat Daemon |
#       +------------------------------------+
#
#  InspIRCd: (C) 2002-2009 InspIRCd Development Team
# See: http://wiki.inspircd.org/Credits
#
# This program is free but copyrighted software; see
#      the file COPYING for details.
#
# ---------------------------------------------------

### THIS IS DESIGNED TO BE RUN BY MAKE! DO NOT RUN FROM THE SHELL (because it MIGHT sigterm the shell)! ###

use strict;
use warnings FATAL => qw(all);

use POSIX ();

# Runs the compiler, passing it the given arguments.
# Filters select output from the compiler's standard error channel and
# can take different actions as a result.

# NOTE: this is *NOT* a hash (sadly: a hash would stringize all the regexes and thus render them useless, plus you can't index a hash based on regexes anyway)
# even though we use the => in it.

# The subs are passed the message, and anything the regex captured.

my $cc = shift(@ARGV);

my $showncmdline = 0;

# GCC's "location of error stuff", which accumulates the "In file included from" include stack
my $location = "";

my @msgfilters = (
	[ qr/^(.*) warning: cannot pass objects of non-POD type `(.*)' through `\.\.\.'; call will abort at runtime/ => sub {
		my ($msg, $where, $type) = @_;
		my $errstr = $location . "$where error: cannot pass objects of non-POD type `$type' through `...'\n";
		$location = "";
		if ($type =~ m/::(basic_)?string/) {
			$errstr .= "$where (Did you forget to call c_str()?)\n";
		}
		die $errstr;
	} ],

	# Start of an include stack.
	[ qr/^In file included from .*[,:]$/ => sub {
		my ($msg) = @_;
		$location = "$msg\n";
		return undef;
	} ],

	# Continuation of an include stack.
	[ qr/^                 from .*[,:]$/ => sub {
		my ($msg) = @_;
		$location .= "$msg\n";
		return undef;
	} ],

	# A function, method, constructor, or destructor is the site of a problem
	[ qr/In ((con|de)structor|(member )?function)/ => sub {
		my ($msg) = @_;
		# If a complete location string is waiting then probably we dropped an error, so drop the location for a new one.
		if ($location =~ m/In ((con|de)structor|(member )?function)/) {
			$location = "$msg\n";
		} else {
			$location .= "$msg\n";
		}
		return undef;
	} ],

	[ qr/^.* warning: / => sub {
		my ($msg) = @_;
		my $str = $location . "\e[33;1m$msg\e[0m\n";
		$showncmdline = 1;
		$location = "";
		return $str;
	} ],

	[ qr/^.* error: / => sub {
		my ($msg) = @_;
		my $str = "";
		$str = "An error occured when executing:\e[37;1m $cc " . join(' ', @ARGV) . "\n" unless $showncmdline;
		$showncmdline = 1;
		$str .= $location . "\e[31;1m$msg\e[0m\n";
		$location = "";
		return $str;
	} ],

	[ qr/./ => sub {
		my ($msg) = @_;
		$msg = $location . $msg;
		$location = "";
		$msg =~ s/std::basic_string\<char\, std\:\:char_traits\<char\>, std::allocator\<char\> \>(\s+|)/std::string/g;
		$msg =~ s/std::basic_string\<char\, .*?irc_char_traits\<char\>, std::allocator\<char\> \>(\s+|)/irc::string/g;
		for my $stl (qw(deque vector list)) {
			$msg =~ s/std::$stl\<(\S+), std::allocator\<\1\> \>/std::$stl\<$1\>/g;
			$msg =~ s/std::$stl\<(std::pair\<\S+, \S+\>), std::allocator\<\1 \> \>/std::$stl<$1 >/g;
		}
		$msg =~ s/std::map\<(\S+), (\S+), std::less\<\1\>, std::allocator\<std::pair\<const \1, \2\> \> \>/std::map<$1, $2>/g;
		# Warning: These filters are GNU C++ specific!
		$msg =~ s/__gnu_cxx::__normal_iterator\<(\S+)\*, std::vector\<\1\> \>/std::vector<$1>::iterator/g;
		$msg =~ s/__gnu_cxx::__normal_iterator\<(std::pair\<\S+, \S+\>)\*, std::vector\<\1 \> \>/std::vector<$1 >::iterator/g;
		$msg =~ s/__gnu_cxx::__normal_iterator\<char\*, std::string\>/std::string::iterator/g;
		$msg =~ s/__gnu_cxx::__normal_iterator\<char\*, irc::string\>/irc::string::iterator/g;
		return $msg;
	} ],
);

my $pid;

my ($r_stderr, $w_stderr);

my $name = "";
my $action = "";

if ($cc eq "ar") {
	$name = $ARGV[1];
	$action = "ARCHIVE";
} else {
	foreach my $n (@ARGV)
	{
		if ($n =~ /\.cpp$/)
		{
			my $f = $n;
			if (defined $ENV{SOURCEPATH}) {
				$f =~ s#^$ENV{SOURCEPATH}/src/##;
			}
			if ($action eq "BUILD")
			{
				$name .= " " . $f;
			}
			else
			{
				$action = "BUILD";
				$name = $f;
			}
		}
		elsif ($action eq "BUILD") # .cpp has priority.
		{
			next;
		}
		elsif ($n eq "-o")
		{
			$action = $name = $n;
		}
		elsif ($name eq "-o")
		{
			$action = "LINK";
			$name = $n;
		}
	}
}

if (!defined($cc) || $cc eq "") {
	die "Compiler not specified!\n";
}

pipe($r_stderr, $w_stderr) or die "pipe stderr: $!\n";

$pid = fork;

die "Cannot fork to start $cc! $!\n" unless defined($pid);

if ($pid) {

	printf "\t\e[1;32m%-20s\e[0m%s\n", $action . ":", $name unless $name eq "";

	my $fail = 0;
	# Parent - Close child-side pipes.
	close $w_stderr;
	# Close STDIN to ensure no conflicts with child.
	close STDIN;
	# Now read each line of stderr
LINE:	while (defined(my $line = <$r_stderr>)) {
		chomp $line;

		for my $filter (@msgfilters) {
			my @caps;
			if (@caps = ($line =~ $filter->[0])) {
				$@ = "";
				$line = eval {
					$filter->[1]->($line, @caps);
				};
				if ($@) {
					# Note that $line is undef now.
					$fail = 1;
					print STDERR $@;
				}
				next LINE unless defined($line);
			}
		}
		# Chomp off newlines again, in case the filters put some back in.
		chomp $line;
		print STDERR "$line\n";
	}
	waitpid $pid, 0;
	close $r_stderr;
	my $exit = $?;
	# Simulate the same exit, so make gets the right termination info.
	if (POSIX::WIFSIGNALED($exit)) {
		# Make won't get the right termination info (it gets ours, not the compiler's), so we must tell the user what really happened ourselves!
		print STDERR "$cc killed by signal " . POSIX::WTERMSIGN($exit) . "\n";
		kill "TERM", getppid(); # Needed for bsd make.
		kill "TERM", $$;
	}
	else {
		if (POSIX::WEXITSTATUS($exit) == 0) {
			if ($fail) {
				kill "TERM", getppid(); # Needed for bsd make.
				kill "TERM", $$;
			}
			exit 0;
		} else {
			exit POSIX::WEXITSTATUS($exit);
		}
	}
} else {
	# Child - Close parent-side pipes.
	close $r_stderr;
	# Divert stderr
	open STDERR, ">&", $w_stderr or die "Cannot divert STDERR: $!\n";
	# Run the compiler!
	exec { $cc } $cc, @ARGV;
	die "exec $cc: $!\n";
}