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 19 # Generates asm_support_gen.h into the $OUT directory in the build. 20 # Then verifies that it is the same as in runtime/generated/asm_support_gen.h 21 22 # Validates that art/runtime/generated/asm_support_gen.h 23 # - This must be run after a build since it uses cpp-define-generator-data 24 25 # Path to asm_support_gen.h that we check into our git repository. 26 ASM_SUPPORT_GEN_CHECKED_IN_COPY="runtime/generated/asm_support_gen.h" 27 # Instead of producing an error if checked-in copy differs from the generated version, 28 # overwrite the local checked-in copy instead. 29 OVERWRITE_CHECKED_IN_COPY_IF_CHANGED="n" 30 31 ####################### 32 ####################### 33 34 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" 35 ART_DIR="$( cd "$DIR/../.." && pwd )" 36 ABS_ASM_SUPPORT_GEN_CHECKED_IN_COPY="$ART_DIR/runtime/generated/asm_support_gen.h" 37 38 # Sanity check that we haven't moved the file around. 39 # If we did, perhaps the above constant should be updated. 40 if ! [[ -f "$ABS_ASM_SUPPORT_GEN_CHECKED_IN_COPY" ]]; then 41 echo "ERROR: Missing asm_support_gen.h, expected to be in '$ABS_ASM_SUPPORT_GEN_CHECKED_IN_COPY'" >&2 42 exit 1 43 fi 44 45 # The absolute path to cpp-define-generator is in $1 46 # Generate the file as part of the build into the out location specified by $2. 47 48 # Compare that the generated file matches our golden copy that's checked into git. 49 # If not, it is a fatal error and the user needs to run 'generate-asm-support' to rebuild. 50 51 if [[ $# -lt 2 ]]; then 52 echo "Usage: $0 [--quiet] [--presubmit] <path-to-cpp-define-generator-data-binary> <output-file>'" >&2 53 exit 1 54 fi 55 56 # Supress 'chatty' messages during the build. 57 # If anything is printed in a success case then 58 # the main Android build can't reuse the same line for 59 # showing multiple commands being executed. 60 QUIET=false 61 if [[ "$1" == "--quiet" ]]; then 62 QUIET=true 63 shift 64 fi 65 66 CPP_DEFINE_GENERATOR_TOOL="$1" 67 OUTPUT_FILE="$2" 68 69 function pecho() { 70 if ! $QUIET; then 71 echo "$@" 72 fi 73 } 74 75 # Generate the header. Print the command we're running to console for readability. 76 pecho "cpp-define-generator-data > \"$OUTPUT_FILE\"" 77 "$CPP_DEFINE_GENERATOR_TOOL" > "$OUTPUT_FILE" 78 retval="$?" 79 80 if [[ $retval -ne 0 ]]; then 81 echo "verify-asm-support: FATAL: Error while running cpp-define-generator-data" >&2 82 exit $retval 83 fi 84 85 if ! diff "$ABS_ASM_SUPPORT_GEN_CHECKED_IN_COPY" "$OUTPUT_FILE"; then 86 87 if [[ $OVERWRITE_CHECKED_IN_COPY_IF_CHANGED == "y" ]]; then 88 cp "$OUTPUT_FILE" "$ABS_ASM_SUPPORT_GEN_CHECKED_IN_COPY" 89 echo "verify-asm-support: OK: Overwrote '$ASM_SUPPORT_GEN_CHECKED_IN_COPY' with build copy." 90 echo " Please 'git add $ASM_SUPPORT_GEN_CHECKED_IN_COPY'." 91 else 92 echo "---------------------------------------------------------------------------------------------" >&2 93 echo "verify-asm-support: ERROR: Checked-in copy of '$ASM_SUPPORT_GEN_CHECKED_IN_COPY' " >&2 94 echo " has diverged from the build copy." >&2 95 echo " Please re-run the 'generate-asm-support' command to resync the header." >&2 96 [[ -f "$OUTPUT_FILE" ]] && rm "$OUTPUT_FILE" 97 exit 1 98 fi 99 fi 100 101 pecho "verify-asm-support: SUCCESS. Built '$OUTPUT_FILE' which matches our checked in copy." 102
