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Merge "Generate brotli compressed {}.new.dat for full OTA"

This commit is contained in:
Tianjie Xu 2017-07-14 23:21:54 +00:00 committed by Gerrit Code Review
parent 126e625fed b0a29ad8c2
commit 1b28eca1a1
3 changed files with 39 additions and 7 deletions
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9
core/Makefile
View File

@ -2007,7 +2007,8 @@ OTATOOLS := $(HOST_OUT_EXECUTABLES)/minigzip \
$(HOST_OUT_EXECUTABLES)/lib/shflags/shflags \
$(HOST_OUT_EXECUTABLES)/delta_generator \
$(AVBTOOL) \
$(BLK_ALLOC_TO_BASE_FS)
$(BLK_ALLOC_TO_BASE_FS) \
$(BRO)
ifeq (true,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT))
OTATOOLS += \
@ -2041,7 +2042,9 @@ OTATOOLS += \
$(HOST_LIBRARY_PATH)/libz-host$(HOST_SHLIB_SUFFIX) \
$(HOST_LIBRARY_PATH)/libsparse-host$(HOST_SHLIB_SUFFIX) \
$(HOST_LIBRARY_PATH)/libbase$(HOST_SHLIB_SUFFIX) \
$(HOST_LIBRARY_PATH)/libpcre2$(HOST_SHLIB_SUFFIX)
$(HOST_LIBRARY_PATH)/libpcre2$(HOST_SHLIB_SUFFIX) \
$(HOST_LIBRARY_PATH)/libbrotli$(HOST_SHLIB_SUFFIX)
.PHONY: otatools
otatools: $(OTATOOLS)
@ -2475,6 +2478,8 @@ $(INTERNAL_OTA_PACKAGE_TARGET): KEY_CERT_PAIR := $(DEFAULT_KEY_CERT_PAIR)
ifeq ($(AB_OTA_UPDATER),true)
$(INTERNAL_OTA_PACKAGE_TARGET): $(BRILLO_UPDATE_PAYLOAD)
else
$(INTERNAL_OTA_PACKAGE_TARGET): $(BRO)
endif
$(INTERNAL_OTA_PACKAGE_TARGET): $(BUILT_TARGET_FILES_PACKAGE) \

1
core/config.mk
View File

@ -592,6 +592,7 @@ NANOPB_SRCS := external/nanopb-c/generator/protoc-gen-nanopb \
VTSC := $(HOST_OUT_EXECUTABLES)/vtsc$(HOST_EXECUTABLE_SUFFIX)
MKBOOTFS := $(HOST_OUT_EXECUTABLES)/mkbootfs$(HOST_EXECUTABLE_SUFFIX)
MINIGZIP := $(HOST_OUT_EXECUTABLES)/minigzip$(HOST_EXECUTABLE_SUFFIX)
BRO := $(HOST_OUT_EXECUTABLES)/bro$(HOST_EXECUTABLE_SUFFIX)
ifeq (,$(strip $(BOARD_CUSTOM_MKBOOTIMG)))
MKBOOTIMG := $(HOST_OUT_EXECUTABLES)/mkbootimg$(HOST_EXECUTABLE_SUFFIX)
else

36
tools/releasetools/common.py
View File

@ -1515,9 +1515,34 @@ class BlockDifference(object):
ZipWrite(output_zip,
'{}.transfer.list'.format(self.path),
'{}.transfer.list'.format(self.partition))
ZipWrite(output_zip,
'{}.new.dat'.format(self.path),
'{}.new.dat'.format(self.partition))
# For full OTA, compress the new.dat with brotli with quality 6 to reduce its size. Quailty 9
# almost triples the compression time but doesn't further reduce the size too much.
# For a typical 1.8G system.new.dat
# zip | brotli(quality 6) | brotli(quality 9)
# compressed_size: 942M | 869M (~8% reduced) | 854M
# compression_time: 75s | 265s | 719s
# decompression_time: 15s | 25s | 25s
if not self.src:
bro_cmd = ['bro', '--quality', '6',
'--input', '{}.new.dat'.format(self.path),
'--output', '{}.new.dat.br'.format(self.path)]
print("Compressing {}.new.dat with brotli".format(self.partition))
p = Run(bro_cmd, stdout=subprocess.PIPE)
p.communicate()
assert p.returncode == 0,\
'compression of {}.new.dat failed'.format(self.partition)
new_data_name = '{}.new.dat.br'.format(self.partition)
ZipWrite(output_zip,
'{}.new.dat.br'.format(self.path),
new_data_name,
compress_type=zipfile.ZIP_STORED)
else:
new_data_name = '{}.new.dat'.format(self.partition)
ZipWrite(output_zip, '{}.new.dat'.format(self.path), new_data_name)
ZipWrite(output_zip,
'{}.patch.dat'.format(self.path),
'{}.patch.dat'.format(self.partition),
@ -1530,9 +1555,10 @@ class BlockDifference(object):
call = ('block_image_update("{device}", '
'package_extract_file("{partition}.transfer.list"), '
'"{partition}.new.dat", "{partition}.patch.dat") ||\n'
'"{new_data_name}", "{partition}.patch.dat") ||\n'
' abort("E{code}: Failed to update {partition} image.");'.format(
device=self.device, partition=self.partition, code=code))
device=self.device, partition=self.partition,
new_data_name=new_data_name, code=code))
script.AppendExtra(script.WordWrap(call))
def _HashBlocks(self, source, ranges): # pylint: disable=no-self-use