openwrt/scripts/remote-gdb

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#!/usr/bin/perl
use strict;
use warnings;
use FindBin '$Bin';
use File::Temp 'tempfile';
@ARGV == 2 || do {
die "Usage: $0 <host:port> <executable>\n";
exit 1;
};
if( opendir SD, "$Bin/../staging_dir" )
{
my ( $tid, $arch, $libc, @arches );
if( $ARGV[1] =~ m!\btarget-([^_/]+)_([^_/]+)\b! )
{
print("Using target $1 ($2)\n");
($arch, $libc) = ($1, $2);
}
else
{
# Find arches
print("Choose target:\n");
while( defined( my $e = readdir SD ) )
{
if( -d "$Bin/../staging_dir/$e" && $e =~ /^target-([^_]+)_([^_]+)/ )
{
push @arches, [ $1, $2 ];
printf(" %2d) %s (%s)\n", @arches + 0, $1, $2);
}
}
if( @arches > 1 )
{
# Query arch
do {
print("Target? > ");
chomp($tid = <STDIN>);
} while( !defined($tid) || $tid !~ /^\d+$/ || $tid < 1 || $tid > @arches );
($arch, $libc) = @{$arches[$tid-1]};
}
else
{
($arch, $libc) = @{$arches[0]};
}
}
closedir SD;
# Find gdb
my ($gdb) = glob("$Bin/../build_dir/toolchain-${arch}_*_${libc}/gdb-*/gdb/gdb");
if( defined($gdb) && -x $gdb )
{
my ( $fh, $fp ) = tempfile();
# Find sysroot
my ($sysroot) = glob("$Bin/../staging_dir/target-${arch}_${libc}/root-*/");
print $fh "set sysroot $sysroot\n" if $sysroot;
print $fh "target remote $ARGV[0]\n";
system($gdb, '-x', $fp, $ARGV[1]);
close($fh);
unlink($fp);
}
else
{
print("No gdb found! Make sure that CONFIG_GDB is set!\n");
exit(1);
}
}
else
{
print("No staging_dir found! You need to compile at least once!\n");
exit(1);
}