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: $0 <corefile|host:port> <executable>\n";
  10         exit 1;
  11 };
  12
  13 if( opendir SD, "$Bin/../staging_dir" )
  14 {
  15         my ( $tid, $arch, $libc, @arches );
  16
  17         if( $ARGV[1] =~ m!\btarget-(.+?)_(([^/_]+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 }
  85 else
  86 {
  87         print("No staging_dir found! You need to compile at least once!\n");
  88         exit(1);
  89 }