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This CL makes it possible to skip a dump if the crashing thread doesn't
have any pointers to a given module. The concrete use case is WebView
where we would like to skip generating microdump output when webview
is unreferenced by the stack and thus cannot be responsible for the
crash in a way that would be debuggable.
The range of interesting addresses is chosen by examining the process
mappings to find the one that contains a pointer that is known to be in
the right shared object (i.e. an appropriately chosen function pointer)
passed from the client.
If the extracted stack does not contain a pointer in this range, then we
do not generate a microdump. If the stack extraction fails, we still
generate a microdump (without a stack).
BUG=664460
Change-Id: If19406a13168264f7751245fc39591bd6cdbf5df
Reviewed-on: https://chromium-review.googlesource.com/419476
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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BUG=
Change-Id: Ie4d190c68ecbd8709874a3f1ceb872b94b36914f
Reviewed-on: https://chromium-review.googlesource.com/419036
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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Commit 7a8980997d0e0dcf3f3a5d8ccf3c1d8c2840ea27 introduced additional
tests into MicrodumpWriterTest, two of which throw warnings which break
"make check" under default settings on Linux, because the Makefiles are
configured with -Werror=sign-compare.
This patch just makes the signedness of the assertion arguments match.
Change-Id: Ib522f44205c84f91bc9b93276fad60ebbf005f60
Reviewed-on: https://chromium-review.googlesource.com/418938
Reviewed-by: Tobias Sargeant <tobiasjs@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
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The stack interest range is passed in MicrodumpExtraInfo from the client.
If the extracted stack does not contain a pointer in this range, then we
assume that this is not a WebView crash, and do not generate a microdump.
If the stack extraction fails, we still generate a microdump (without a
stack).
BUG=664460
Change-Id: Ic762497f76f074a3621c7ec88a8c20ed768b9211
Reviewed-on: https://chromium-review.googlesource.com/412781
Reviewed-by: Primiano Tucci <primiano@chromium.org>
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Although strictly the GPU fingerprint is defined by the build fingerprint,
there is not currently a straightforward mapping from build fingerprint
to useful GPU / GL driver information.
In order to aid debugging of WebView crashes that occur in GL drivers,
and to better understand the range of drivers and versions for feature
blacklisting purposes, it is useful to have GPU fingerprints in breakpad
microdumps.
Landing this patch on behalf of Tobias Sargeant<tobiasjs@chromium.org>
BUG=chromium:536769
R=primiano@chromium.org, thestig@chromium.org
Review URL: https://codereview.chromium.org/1334473003 .
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r1456 introduced the possibility to customize the OS-line of the
microdump, enabling to replace, in the case of android, the generic
uname() info with the Android build fingerprint.
While doing that, it mistakenly removed the HW architecture indication
from the format.
See crbug.com/520075 for more details.
BUG=chromium:520075
R=mmandlis@chromium.org, torne@chromium.org
Review URL: https://codereview.chromium.org/1288313002 .
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1489 4c0a9323-5329-0410-9bdc-e9ce6186880e
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This is to add build fingerprint and product name/version to
microdumps. Conversely to what happens in the case of minidumps
with MIME fields, due to the nature of minidumps, extra metadata
cannot be reliably injected after the dump is completed.
This CL adds the plumbing to inject two optional fields plus the
corresponding tests.
BUG=chromium:410294
R=thestig@chromium.org
Review URL: https://codereview.chromium.org/1125153008
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1456 4c0a9323-5329-0410-9bdc-e9ce6186880e
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R=mark@chromium.org
Review URL: https://breakpad.appspot.com/3754002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1417 4c0a9323-5329-0410-9bdc-e9ce6186880e
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- Filter modules by prot flags (only +x) not extensions. It wouldn't
otherwise catch the case of Chrome mapping the library from the
apk (which is mapped r-x but doesn't end in .so).
- Use compile-time detection of target arch, in order to cope with
multilib OSes, where uname() doesn't reflect the run-time arch.
- Add OS information and CPU arch / count.
- Add support for aarch64.
- Add tests and stackwalk expectations for aarch64.
- Fix a potential overflow bug in the processor.
- Rebaseline the tests using smaller symbols.
- Fix microdump_writer_unittest.cc on 32-bit host.
BUG=chromium:410294
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1407 4c0a9323-5329-0410-9bdc-e9ce6186880e
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This adds some small fixes to the microdump writer and introduces
a unittest.
BUG=chromium:410294
R=mmandlis@chromium.org
Review URL: https://breakpad.appspot.com/2814002
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1404 4c0a9323-5329-0410-9bdc-e9ce6186880e
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