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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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Fix compile error with -Wshorten-64-to-32. Image size is new stored as an
offset_t to avoid implicit conversion.
Bug: 881008
Change-Id: I82b12ce17d8368f05d6a5537fd1734ee32b37dbe
Reviewed-on: https://chromium-review.googlesource.com/1213549
Reviewed-by: Samuel Huang <huangs@chromium.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589938}
NOKEYCHECK=True
GitOrigin-RevId: 5946dbfa3f684d8f4960bb413b5e8322ebddcee3
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Forward-projection is how Zucchini uses the equivalence map to create
estimated "new" targets from "old" targets. Extended forward-projection
is defined to transform non-covered offsets: Given an offset, it finds
the equivalence unit with nearest "old" block, then applies the
"old"-to-"new" displacement to the offset. However, this makes it
possible to map an "old" offset to an offset outside "new" image.
Another issue is that Zucchini uses "dangling targets" that use "fake
offsets" outside the image file to represent .bss data. These targets
also undergo forward-projection, and should be properly handled.
This CL fixes the existing behavior, where underflow / overflow go
unchecked (although these values are rendered benign downstream, since
the nearest actual "new" target is found). The updated extended
forward-projection specifies:
- For "old" targets with real offsets: Take nearest equivalence unit,
clamp output to be inside [0, "new" image size).
- For "old" dangling targets with fake offsets: Use difference in
file size as displacement.
The main impact w.r.t. patch is to reduce possible variance in patch
sizes -- dangling targets are now handled better. Extensive unit tests
are also added.
Bug: 832572
Change-Id: I41fea175e4c13585d14a97a712a191afc2fcc6d6
Reviewed-on: https://chromium-review.googlesource.com/1111467
Reviewed-by: Samuel Huang <huangs@chromium.org>
Reviewed-by: Greg Thompson <grt@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#570401}
NOKEYCHECK=True
GitOrigin-RevId: ad7a5c086f00de62997714b84d6d6b5817ccc9d8
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This CL moves Zucchini-gen invocation code from zucchini_commands.cc
(in target zucchini) to zucchini_integration.cc (in target zucchini_io)
to clean up layering in Zucchini API, i.e.:
- zucchini_lib: Operates on buffers only.
- zucchini_io: Adds files interface, uses memory-mapped I/O.
- zucchini: Stand-alone executable that parses command-line arguments.
Other changes:
- Rename zucchini_lib functions (zuchcini.h), to dedup names and
emphasize that these functions operate on buffers:
- GenerateEnsemble() -> GenerateBuffer(),
- GenerateEnsembleWithImposedMatches() -> GenerateBufferImposed(),
- GenerateRaw() -> GenerateBufferRaw(),
- Apply() -> ApplyBuffer().
These renames only affect Zucchini and various tests.
- Variable renames and parameter reordering in zucchini_integration.cc.
- Remove '-dd' param in help text of Zucchini-detect (was never ported
from Trunk, and has been recently deleted there as well).
- Replace all base::File&& with base::File.
- Miscellaneous cleanup for header include.
- Update README.md.
Change-Id: I835b80d4d3d7b291fa822a7a89dab225bf9171e9
Reviewed-on: https://chromium-review.googlesource.com/1105625
Reviewed-by: Samuel Huang <huangs@chromium.org>
Reviewed-by: Greg Thompson <grt@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569274}
NOKEYCHECK=True
GitOrigin-RevId: 9f0f325d6e2595deb8d50c77e0464946f3bf1ec1
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Fixes a CHECK failure in Zucchini Apply found by ClusterFuzz.
Scenario:
A disassembler parses an image element and shrinks it to be the
understood size. Apply expects that this understood size is identical to
the size of the element it is trying to patch. This expectation will
always hold for "good" patch data but for an arbitary patch may not.
This results in a CHECK failure when getting reference writers.
Solution:
After parsing, check that the disassembler sizes match their respective
image sizes. Fail to Apply and print an error message if this is not the
case.
Bug: 847278
Change-Id: I96edb738b8f9ea2d16193ea1aa2def7319ee8f70
Reviewed-on: https://chromium-review.googlesource.com/1076369
Commit-Queue: Calder Kitagawa <ckitagawa@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#562560}
NOKEYCHECK=True
GitOrigin-RevId: 0ca1928abfdce0efe539655cc09e9a8f4ece063f
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Located by fuzzing ZTF Apply (WIP):
https://chromium-review.googlesource.com/c/chromium/src/+/1072231
Found two fatal errors:
- OffsetForKey always assumes a key is valid however, the validity of
the key is not checked prior to the caller invoking the method. The
caller also had no way to check validity if it was external to
TargetPool.
Fix: Add a method to check for key validity ahead of calling
OffsetForKey.
- ConvertToTargetLineCol for absolute references had a logic bug that
resulted in attempting to dereference an invalid base::Optional
Fix: Change the logic to avoid issue.
Bug: 835341
Change-Id: I99c91741eef41dfaa3036af8e708eb3f0d5ca84a
Reviewed-on: https://chromium-review.googlesource.com/1072272
Commit-Queue: Calder Kitagawa <ckitagawa@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561642}
NOKEYCHECK=True
GitOrigin-RevId: 4e3e49f97119d48ba6c048e46aa9671d1cd21d17
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A follow-up to
https://chromium-review.googlesource.com/c/chromium/src/+/1028575
This moves patch_apply logic to check bounds of an equivalences from
the call site of GetNext() to an internal function in the patch_reader.
This means the equivalence consumer can use the equivalences without
checking anything to do with bounds.
I have manually tested that this doesn't appear to break any existing
valid patches and it appears to catch all the same errors change
1028575 fixed so I can safely reverse that change.
BUG: 837096
Change-Id: I84ccd9e1493f32d16eace4dd8e67586f559220d3
Reviewed-on: https://chromium-review.googlesource.com/1028836
Commit-Queue: Calder Kitagawa <ckitagawa@google.com>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#554536}
NOKEYCHECK=True
GitOrigin-RevId: ce5642400b37f5ff2b0a1213522f984bca8a080a
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There was an outstanding TODO to validate that during Apply the writes
to the |new_image| and copies from the |old_image| were within valid
ranges. During raw apply fuzzing a number of memory violations occurred
this is a fix for those.
Bug: 835341
Change-Id: I669304e93e51ba7cd2b862189fbc0a6f3cea1748
Reviewed-on: https://chromium-review.googlesource.com/1028575
Commit-Queue: Calder Kitagawa <ckitagawa@google.com>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#553718}
NOKEYCHECK=True
GitOrigin-RevId: 520aebd16201c0179ff347c7244d940d64af775e
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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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