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      1 #!/bin/bash
      2 #
      3 # Copyright (C) 2017 The Android Open Source Project
      4 #
      5 # Licensed under the Apache License, Version 2.0 (the "License");
      6 # you may not use this file except in compliance with the License.
      7 # You may obtain a copy of the License at
      8 #
      9 #      http://www.apache.org/licenses/LICENSE-2.0
     10 #
     11 # Unless required by applicable law or agreed to in writing, software
     12 # distributed under the License is distributed on an "AS IS" BASIS,
     13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 # See the License for the specific language governing permissions and
     15 # limitations under the License.
     16 
     17 #
     18 # This script creates a boot image profile based on input profiles.
     19 #
     20 
     21 if [[ "$#" -lt 2 ]]; then
     22   echo "Usage $0 <output> <profman args> <profiles>+"
     23   echo "Also outputs <output>.txt and <output>.preloaded-classes"
     24   echo 'Example: generate-boot-image-profile.sh boot.prof --profman-arg --boot-image-sampled-method-threshold=1 profiles/0/*/primary.prof'
     25   exit 1
     26 fi
     27 
     28 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
     29 TOP="$DIR/../.."
     30 source "${TOP}/build/envsetup.sh" >&/dev/null # import get_build_var
     31 
     32 OUT_PROFILE=$1
     33 shift
     34 
     35 # Read the profman args.
     36 profman_args=()
     37 while [[ "$#" -ge 2 ]] && [[ "$1" = '--profman-arg' ]]; do
     38   profman_args+=("$2")
     39   shift 2
     40 done
     41 
     42 # Remaining args are all the profiles.
     43 for file in "$@"; do
     44   if [[ -s $file ]]; then
     45     profman_args+=("--profile-file=$file")
     46   fi
     47 done
     48 
     49 # Boot jars have hidden API access flags which do not pass dex file
     50 # verification. Skip it.
     51 jar_args=()
     52 boot_jars=$("$ANDROID_BUILD_TOP"/art/tools/bootjars.sh --target)
     53 jar_dir=$ANDROID_BUILD_TOP/$(get_build_var TARGET_OUT_JAVA_LIBRARIES)
     54 for file in $boot_jars; do
     55   filename="$jar_dir/$file.jar"
     56   jar_args+=("--apk=$filename")
     57   jar_args+=("--dex-location=$filename")
     58 done
     59 profman_args+=("${jar_args[@]}")
     60 
     61 # Generate the profile.
     62 "$ANDROID_HOST_OUT/bin/profman" --generate-boot-image-profile "--reference-profile-file=$OUT_PROFILE" "${profman_args[@]}"
     63 
     64 # Convert it to text.
     65 echo Dumping profile to $OUT_PROFILE.txt
     66 "$ANDROID_HOST_OUT/bin/profman" --dump-classes-and-methods "--profile-file=$OUT_PROFILE" "${jar_args[@]}" > "$OUT_PROFILE.txt"
     67 
     68 # Generate preloaded classes
     69 # Filter only classes by using grep -v
     70 # Remove first and last characters L and ;
     71 # Replace / with . to make dot format
     72 grep -v "\\->" "$OUT_PROFILE.txt" | sed 's/.\(.*\)./\1/g' | tr "/" "." > "$OUT_PROFILE.preloaded-classes"
     73 
     74 # You may need to filter some classes out since creating threads is not allowed in the zygote.
     75 # i.e. using: grep -v -E '(android.net.ConnectivityThread\$Singleton)'
     76