1#!/usr/bin/env perl
2
3use strict;
4use warnings;
5use FindBin '$Bin';
6use File::Temp 'tempfile';
7
8@ARGV == 2 || do {
9	die "Usage: $0 <corefile|host:port> <executable>\n";
10	exit 1;
11};
12
13if( opendir SD, "$Bin/../staging_dir" )
14{
15	my ( $tid, $arch, $libc, @arches );
16
17	if( $ARGV[1] =~ m!\btarget-(.+?)_(([^/_]+libc|musl)[^/]+)\b!i )
18	{
19		print("Using target $1 ($2)\n");
20		($arch, $libc) = ($1, $2);
21	}
22	else
23	{
24		# Find arches
25		print("Choose target:\n");
26
27		while( defined( my $e = readdir SD ) )
28		{
29			if( -d "$Bin/../staging_dir/$e" && $e =~ /^target-(.+?)_(([^_]+libc|musl).+)/i )
30			{
31				push @arches, [ $1, $2 ];
32				printf(" %2d) %s (%s)\n", @arches + 0, $1, $2);
33			}
34		}
35
36		if( @arches > 1 )
37		{
38			# Query arch
39			do {
40				print("Target? > ");
41				chomp($tid = <STDIN>);
42			} while( !defined($tid) || $tid !~ /^\d+$/ || $tid < 1 || $tid > @arches );
43
44			($arch, $libc) = @{$arches[$tid-1]};
45		}
46		else
47		{
48			($arch, $libc) = @{$arches[0]};
49		}
50	}
51
52	closedir SD;
53
54	# Find gdb
55	my ($gdb) = glob("$Bin/../staging_dir/toolchain-${arch}_*_${libc}*/bin/*-gdb");
56	if( defined($gdb) && -x $gdb )
57	{
58		my ( $fh, $fp ) = tempfile();
59
60		# Find sysroot
61		my ($sysroot) = glob("$Bin/../staging_dir/target-${arch}_${libc}/root-*/");
62
63		print $fh "set sysroot $sysroot\n" if $sysroot;
64		my $cmd = "target extended-remote";
65		-f $ARGV[0] and $cmd = "core-file";
66		print $fh "$cmd $ARGV[0]\n";
67
68		# History settings
69		print $fh "set history filename $Bin/../tmp/.gdb_history\n";
70		print $fh "set history size 100000000\n";
71		print $fh "set history save on\n";
72
73		my $file = -f "$sysroot/$ARGV[1]" ? "$sysroot/$ARGV[1]" : $ARGV[1];
74		system($gdb, '-x', $fp, $file);
75
76		close($fh);
77		unlink($fp);
78	}
79	else
80	{
81		print("No gdb found! Make sure that CONFIG_GDB is set!\n");
82		exit(1);
83	}
84}
85else
86{
87	print("No staging_dir found! You need to compile at least once!\n");
88	exit(1);
89}
90