Revert "Make bad_build_check more likely to catch hardcoding /out (#3180)" (#3197)

Revert so that we don't get two errors in a row.

This reverts commit 14bdd9332c.

infra/base-images/base-runner/Dockerfile

@@ -49,7 +49,6 @@ COPY bad_build_check \
     run_minijail \
     targets_list \
     test_all \
-    test_one \
     /usr/local/bin/
 
 # Default environment options for various sanitizers.

infra/base-images/base-runner/test_all

@@ -32,18 +32,8 @@ rm -rf $BROKEN_TARGETS_DIR
 mkdir $VALID_TARGETS_DIR
 mkdir $BROKEN_TARGETS_DIR
 
-# Move the directory the fuzzer is located in to somewhere that doesn't exist
-# on the builder to make it more likely that hardcoding /out fails here (since
-# it will fail on ClusterFuzz).
-TMP_FUZZER_DIR=/tmp/not-out
-rm -rf $TMP_FUZZER_DIR
-mkdir $TMP_FUZZER_DIR
-# Move contents of $OUT/ into $TMP_FUZZER_DIR. We can't move the directory
-# itself because it is a mount.
-mv $OUT/* $TMP_FUZZER_DIR
-
 # Main loop that iterates through all fuzz targets and runs the check.
-for FUZZER_BINARY in $(find $TMP_FUZZER_DIR -maxdepth 1 -executable -type f); do
+for FUZZER_BINARY in $(find $OUT/ -maxdepth 1 -executable -type f); do
   if file "$FUZZER_BINARY" | grep -v ELF > /dev/null 2>&1; then
     continue
   fi
@@ -83,9 +73,6 @@ done
 # Wait for background processes to finish.
 wait
 
-# Restore $OUT
-mv $TMP_FUZZER_DIR/* $OUT
-
 # Sanity check in case there are no fuzz targets in the $OUT/ dir.
 if [ "$TOTAL_TARGETS_COUNT" -eq "0" ]; then
   echo "ERROR: no fuzzers found in $OUT/"

infra/base-images/base-runner/test_one

@@ -1,50 +0,0 @@
-#!/bin/bash -u
-# Copyright 2020 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-################################################################################
-
-# Wrapper around bad_build_check that moves the /out directory to /tmp/not-out.
-# This is useful when bad_build_check isn't called from test_all which does the
-# same thing.
-
-function main {
-  # Move the directory the fuzzer is located in to somewhere that doesn't exist
-  # on the builder to make it more likely that hardcoding /out fails here (since
-  # it will fail on ClusterFuzz).
-  local fuzzer=$1
-  fuzzer=$(realpath $fuzzer)
-  local initial_fuzzer_dir=$(dirname $fuzzer)
-
-  local tmp_fuzzer_dir=/tmp/not-out
-  rm -rf $tmp_fuzzer_dir
-  mkdir $tmp_fuzzer_dir
-  # Move the contents of $initial_fuzzer_dir rather than the directory itself in
-  # case it is a mount.
-  mv $initial_fuzzer_dir/* $tmp_fuzzer_dir
-  fuzzer="$tmp_fuzzer_dir/$(basename $fuzzer)"
-
-  bad_build_check $fuzzer
-  returncode=$?
-
-  mv $tmp_fuzzer_dir/* $initial_fuzzer_dir
-  exit returncode
-}
-
-if [ $# -ne 1 ]; then
-  echo "Usage: $0 <fuzz_target_binary>"
-  exit 1
-fi
-
-main $1

infra/helper.py

@@ -530,7 +530,7 @@ def check_build(args):
 
   if args.fuzzer_name:
     run_args += [
-        'test_one',
+        'bad_build_check',
         os.path.join('/out', args.fuzzer_name)
     ]
   else: