build/macosx/llvm-dsymutil

   1 #!/bin/sh
   2 # This Source Code Form is subject to the terms of the Mozilla Public
   3 # License, v. 2.0. If a copy of the MPL was not distributed with this
   4 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   5
   6 "$REAL_DSYMUTIL" "$@"
   7 ret=$?
   8 if [ $ret -ne 139 ]; then
   9   exit $ret
  10 fi
  11
  12 echo "$REAL_DSYMUTIL crashed. Trying to get a reduced testcase." >&2
  13 tmpdir=$(mktemp -d)
  14 trap "rm -rf $tmpdir" EXIT
  15
  16 # Get the library file name from the command line arguments. We assume
  17 # it's the last argument that doesn't start with a dash.
  18 for arg in "$@"; do
  19   case "$arg" in
  20   -*)
  21     ;;
  22   *)
  23     lib="$arg"
  24     ;;
  25   esac
  26 done
  27
  28 last_obj=$("$REAL_DSYMUTIL" --verbose "$@" 2> /dev/null | sed -n "/trying to open/s/trying to open '\(.*\)'/\1/p" | tail -1)
  29
  30 case "$last_obj" in
  31 "")
  32   echo "Could not produce a reduced testcase. Aborting." >&2
  33   # Ideally, we'd produce an archive with every .o and .a involved, but so
  34   # far, this case has never happened, so, meh.
  35   exit 139
  36   ;;
  37 *.a\(*.o\))
  38   # The crash likely happened while reading one particular object in a library.
  39   # Create a new library with just that one object.
  40   archive=$(readlink -f "${last_obj%(*}")
  41   obj="${last_obj#*.a(}"
  42   obj="${obj%)}"
  43   (cd "$tmpdir"; ar x "$archive" "$obj")
  44   mkdir -p $tmpdir/crasher/$(dirname "$archive")
  45   (cd "$tmpdir"; ar cr "$tmpdir/crasher/$archive" "$obj")
  46   rm "$tmpdir/$obj"
  47   ;;
  48 *)
  49   # The crash likely happened while reading one particular object.
  50   obj=$(readlink -f "$last_obj")
  51   mkdir -p "$tmpdir/crasher/$(dirname "$obj")"
  52   cp "$obj" "$tmpdir/crasher/$obj"
  53   ;;
  54 esac
  55 cp "$lib" "$tmpdir/crasher"
  56 cat > "$tmpdir/crasher/run-me.sh" <<EOF
  57 #!/bin/sh
  58 DSYMUTIL="\${DSYMUTIL:-llvm-dsymutil}"
  59 dir="\$(dirname \$0)"
  60 \$DSYMUTIL -oso-prepend-path="\$dir" "\$dir/$(basename "$lib")"
  61 exit \$?
  62 EOF
  63 chmod +x "$tmpdir/crasher/run-me.sh"
  64 (cd "$tmpdir"/crasher; DSYMUTIL=/builds/worker/workspace/build/src/llvm-dsymutil/bin/llvm-dsymutil ./run-me.sh > /dev/null 2>&1)
  65 if [ $? -eq 139 ]; then
  66   echo "Could reproduce with a reduced testcase. Creating an artifact." >&2
  67   mkdir -p "$HOME/artifacts"
  68   artifact=dsymutil-crasher.tar.xz
  69   tar -Jcf "$HOME/artifacts/$artifact" -C "$tmpdir" crasher/
  70   echo "Check the $artifact artifact." >&2
  71 else
  72   echo "Could not reproduce with a reduced testcase. Sorry." >&2
  73 fi
  74
  75 exit 139