scripts/remote-gdb

   1 #!/usr/bin/perl
   2
   3 use strict;
   4 use warnings;
   5 use FindBin '$Bin';
   6 use File::Temp 'tempfile';
   7
   8 @ARGV == 2 || do {
   9         die "Usage: $0 <host:port> <executable>\n";
  10         exit 1;
  11 };
  12
  13 if( opendir SD, "$Bin/../staging_dir" )
  14 {
  15         my ( $tid, $arch, $libc, @arches );
  16
  17         if( $ARGV[1] =~ m!\btarget-([^_/]+)_([^_/]+)\b! )
  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-([^_]+)_([^_]+)/ )
  30                         {
  31                                 push @arches, [ $1, $2 ];
  32                                 printf(" %2d) %s (%s)\n", @arches + 0, $1, $2);
  33                         }
  34                 }
  35
  36                 # Query arch
  37                 do {
  38                         print("Target? > ");
  39                         chomp($tid = <STDIN>);
  40                 } while( !defined($tid) || $tid !~ /^\d+$/ || $tid < 1 || $tid > @arches );
  41
  42                 ($arch, $libc) = @{$arches[$tid-1]};
  43         }
  44
  45         closedir SD;
  46
  47         # Find gdb
  48         my ($gdb) = glob("$Bin/../build_dir/toolchain-${arch}_*_${libc}/gdb-*/gdb/gdb");
  49
  50         if( -x $gdb )
  51         {
  52                 my ( $fh, $fp ) = tempfile();
  53
  54                 # Find library paths
  55                 my $libdirs = join ':', (
  56                         glob("$Bin/../build_dir/target-${arch}_${libc}/debug-*/{usr/,}lib/"),
  57                         glob("$Bin/../staging_dir/target-${arch}_${libc}/{usr/,}lib"),
  58                         glob("$Bin/../staging_dir/toolchain-${arch}_*_${libc}/lib")
  59                 );
  60
  61                 print $fh "set solib-search-path $libdirs\n";
  62                 print $fh "target remote $ARGV[0]\n";
  63
  64                 system($gdb, '-x', $fp, $ARGV[1]);
  65
  66                 close($fh);
  67                 unlink($fp);
  68         }
  69         else
  70         {
  71                 print("No gdb found! Make sure that CONFIG_GDB is set!\n");
  72                 exit(1);
  73         }
  74 }
  75 else
  76 {
  77         print("No staging_dir found! You need to compile at least once!\n");
  78         exit(1);
  79 }