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Allow multiple dex files within single "container"
(either a zip entry or a plain on-disk dex file).
This allows sharing of string (and other) dex data,
since the offsets can point to shared data payload.
Bug: 266950186
Test: test.py -b --host
Change-Id: I4f5901fd2f26a5a9dba427eb48c0fa5ddb6243d8
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Requires changes to the quickening info format stored in vdex.
Large app:
Before
odex size: 5.5MB
vdex size: 48MB (49308168 bytes)
After:
odex size: 1.2MB -78%
vdex size: 48MB (49701846 bytes) +1%
bug: 62120170
Test: test.py
Change-Id: I5ae0b103dc57bdd17aa772f4e43db954d109fd44
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The oat file assistant is used for determining whether dex2oat or
patchoat is needed, for running dex2oat or patchoat as needed to make
an oat file up to date, and to load dex files associated with a given
dex location.
The introduction of the OatFileAssistant class is meant to clean up and
consolidate code related to the management of oat files that was
duplicated and spread across dalvik_system_DexFile.cc and
class_linker.cc.
Bug: 11301553
Change-Id: I0c16027b9bae4570c2c50faa9c14f581c0cbafb8
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