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This CL moves zucchini::{kMajorVersion, kMinorVersion, kInvalidVersion}
to a standalone file version_info.h. The location should remain stable.
Stability is important so that:
* External tools can determine Zucchini versoin from source, i.e., the
file serves as an implicit API.
* Running 'git log' on version_info.h will point to CLs that implement
or enable patch break changes.
Bug: 1231882
Change-Id: I13243a5627870a31d8789d3579f1a50cc0e52bd5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3287124
Commit-Queue: Samuel Huang <huangs@chromium.org>
Reviewed-by: Calder Kitagawa <ckitagawa@chromium.org>
Reviewed-by: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/main@{#942645}
NOKEYCHECK=True
GitOrigin-RevId: 0b4473c4e1683729ac9f81257ba48e1d3e34418f
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This is a breaking change to zucchini patch format:
Zucchini 1.0, see changelog.
Add major/minor patch-wide version, and element version.
Also add VerifyPatch() API and command line option to verify
patch compatibility.
Design: go/zucchini-versions
Bug: 1231882
Change-Id: I19f1fbe2ee866c23f0814ffe6a912fb72812edbc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3140224
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Reviewed-by: Calder Kitagawa <ckitagawa@chromium.org>
Cr-Commit-Position: refs/heads/main@{#936096}
NOKEYCHECK=True
GitOrigin-RevId: 559d77a9741428a48add017d389d104e431e6de7
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This CL enables ARM-ELF (AArch32 and AArch64) support in Zucchini.
* Define ARM {AArch32, AArch64}ReferenceType.
* Add Rel32Finder{Arm, AArch32, AArch64} (with tests) to use
previously-added ARM disassembly code to extract rel32 references.
* Add DisassemblerElf{Arm, AArch32, AArch64} to parse ARM ELF files and
create reference readers / writers, and reference groups.
* For AArch32: Add heuristic detection of ARM vs. Thumb2 mode.
* Add IsTargetOffsetInElfSectionList() (with tests) to help ARM reject
false positive references.
* Add ReferenceBytesMixerElfArm to remove redundant reference target
information from bytewise correction data.
Bug: 918867
Change-Id: I1e6d3d8b8d174c85a3d44ca6d642b7ff0bd6a6a6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2922822
Commit-Queue: Samuel Huang <huangs@chromium.org>
Reviewed-by: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#908913}
NOKEYCHECK=True
GitOrigin-RevId: 85cc8a596f183487b395a59e80b2f654f241ab2c
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This replaces:
- base::Optional -> absl::optional
- include "base/optional.h"
->
include "third_party/abseil-cpp/absl/types/optional.h"
- base::nullopt -> absl::nullopt
- base::make_optional -> absl::make_optional
Bug: 1202909
Change-Id: If697b7bf69b199c1796f873eedca3359cdb48c64
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2897151
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Owners-Override: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Peter Kasting <pkasting@chromium.org>
Cr-Commit-Position: refs/heads/master@{#883296}
NOKEYCHECK=True
GitOrigin-RevId: 1156b5f891de178171e71b9221a96bef1ced3d3b
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CHECK, CHECK_EQ etc., and NOTREACHED/NOTIMPLEMENTED have moved
to the much smaller headers check.h, check_op.h, and notreached.h,
respectively.
This CL updates .cc files to use those headers instead when
possible, with the purpose of saving compile time.
(Split out from https://crrev.com/c/2164525 which also has
notes on how the change was generated.)
Bug: 1031540
Change-Id: I1c0c8450be6320577ebebe39a2cb1abc692fe8b0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2164613
Commit-Queue: Hans Wennborg <hans@chromium.org>
Auto-Submit: Hans Wennborg <hans@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#763287}
NOKEYCHECK=True
GitOrigin-RevId: df87046cb8ae4dbd62cda6e56d317016a6fa02c7
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Update includes and comments, and remove some unused code.
In particular, remove TODO comments for figuring out whether ARM
abs32 references can be 4 bytes long: Turns out ARM absolute
references are 8 bytes long. It's rel32 refereneces that can be
4 bytes long.
Change-Id: I02dc905885f6cb5ff929efe0fb1f9a6593ee05a8
Reviewed-on: https://chromium-review.googlesource.com/c/1327559
Reviewed-by: Etienne Pierre-Doray <etiennep@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606612}
NOKEYCHECK=True
GitOrigin-RevId: 9076fc4939ced233b85e5f8942ba947b6143aba3
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Creates Disassembler that recognises and parses ELF format. For now, it only supports Intel architeture. Support for Arm will be added in follow-up CLs.
Change-Id: Ibdcf113b573f22844b6a1611c5ff6df46829b9b3
Reviewed-on: https://chromium-review.googlesource.com/1136841
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Reviewed-by: Greg Thompson <grt@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582233}
NOKEYCHECK=True
GitOrigin-RevId: 3c64e078fea9f23e44939c25ca02cf05b72b2c40
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A Zucchini text format (ZTF) disassembler for validating and
debugging Zucchini using special text files.
This is intended to be primarily used for easier validation of the
core Zucchini algorithm. It is also useful for fuzzing reference
projection as it is a lighter weight disassembler than other
executable formats. References are encoded in an ASCII plain-text
format to be human-readable and easier to debug.
See the disassembler_ztf.h file for a complete outline of the file
format. Which is referred to as Zucchini Text Format (ZTF) throughout
the code.
The design is meant to be highly flexible and non-redundant so a fair
amount of templating/overloading is used. The overall design is:
Shared:
- ZtfConfig: To handle metadata for different types of references.
- ZtfTranslator: Translate text references into offsets and back.
Read:
- ZtfParser: Find references in the file.
- ZtfReferenceReader: Drive ZtfParser through the file and use it
with ZtfTranslator to translate between offsets and references.
Write:
- ZtfWriter: The counterpart to parser for writing a reference to a
location.
- ZtfReferenceWriter: Compose ZtfWriter and ZtfTranslator
together and write references to an image.
Bug: 834904
Change-Id: Iec62c67eab6bd3e7e95b79798417035a4873360a
Reviewed-on: https://chromium-review.googlesource.com/1056147
Commit-Queue: Calder Kitagawa <ckitagawa@google.com>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Reviewed-by: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561140}
NOKEYCHECK=True
GitOrigin-RevId: d2c5be5844c12d2585bde53ba891154ffed2ca62
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Allows Zucchini to be built with only a subset of architectures enabled
this saves on binary size at the cost of flexibility. The idea is that
only the desired architectures would be compiled for a particular
usecases. For example the Windows setup.exe only needs Windows support.
Expected savings as a percent of total binary size at present
(868.5 kB non-debug):
- Remove DEX 3.13% (841.3 kB)
- Remove Win 6.00% (816.4 kB)
- Only Raw 9.13% (789.2 kB)
Note that in the case of Raw saving could be made significantly higher
by entirely removing the dependence on references and reference
projection. However, at present the additional messiness of the
additional buildflags all over the codebase is not worth the
maintenance costs.
Bug: 835007
Change-Id: I091cb9d76e8473340374be1a33a5df48137a3067
Reviewed-on: https://chromium-review.googlesource.com/1037922
Commit-Queue: Calder Kitagawa <ckitagawa@google.com>
Reviewed-by: Greg Thompson <grt@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#556802}
NOKEYCHECK=True
GitOrigin-RevId: f0545bf20576afb65f9bbc493ea9b4d5d42c4738
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Creates Disassembler that recognises and parses DEX format. For now, it doesn't
extract any type reference, so it is equivalent to DisassemblerNoOp. Extraction
of various types of reference will be added in a follow-up CL.
BufferView::covers_array() and unittests were also added.
Change-Id: I08756244e9af899cf0f40dabd2b0059e1749328e
Reviewed-on: https://chromium-review.googlesource.com/967603
Reviewed-by: Samuel Huang <huangs@chromium.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#546807}
NOKEYCHECK=True
GitOrigin-RevId: d214e2cf9e23bf055f0e0655e9564761d50206ad
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(Use "git log --follow" to see older revisions of files).
/components/ is the most logical place to put Zucchini, which only
depends on /base and /testing/gtest. This move also enables Zucchini to
be used by the Component Updater. Details:
- Move all files; run the following to change deps and guards:
sed 's/chrome\/installer/components/' *.cc *.h -i
sed 's/CHROME_INSTALLER/COMPONENTS/' *.cc *.h -i
- Sorting works out pretty well!
- Change all 'chrome/installer/zucchini' to 'components/zucchini'
throughout other parts of the repo; sort if necessary.
- Fix 6 'git cl lint' errors.
- Change 1 Bind() usage to BindRepeated().
- Update OWNER.
Bug: 729154
Change-Id: I50c5a7d411ea85f707b5994ab319dfb2a1acccf7
Reviewed-on: https://chromium-review.googlesource.com/954923
Reviewed-by: Greg Thompson <grt@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542857}
NOKEYCHECK=True
GitOrigin-RevId: 577ef6c435e8d43be6e3e60ccbcbd1881780f4ec
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