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* Sanitize dumped stacks to remove data that may be identifiable.Tobias Sargeant2017-01-311-0/+2
| | | | | | | | | | | | | | | In order to sanitize the stack contents we erase any pointer-aligned word that could not be interpreted as a pointer into one of the processes' memory mappings, or a small integer (+/-4096). This still retains enough information to unwind stack frames, and also to recover some register values. BUG=682278 Change-Id: I541a13b2e92a9d1aea2c06a50bd769a9e25601d3 Reviewed-on: https://chromium-review.googlesource.com/430050 Reviewed-by: Robert Sesek <rsesek@chromium.org>
* Add API to skip dump if crashing thread doesn't reference a given module (2)Tobias Sargeant2017-01-191-0/+8
| | | | | | | | | | | Follow-up CL to add relevant code to the copy constructor and assignment operator for MinidumpDescriptor BUG=664460 Change-Id: I71c0ad01d8686a9215a718cebc9d11a215ea342c Reviewed-on: https://chromium-review.googlesource.com/430711 Reviewed-by: Robert Sesek <rsesek@chromium.org>
* Add GPU fingerprint information to breakpad microdumps.Primiano Tucci2015-09-281-15/+2
| | | | | | | | | | | | | | | | | | 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 .
* [microdump] Add build fingerprint and product info metadata.primiano@chromium.org2015-05-151-1/+16
| | | | | | | | | | | | | | | | 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
* Fix the scope on the initialization of kMicrodumpOnConsole to match header.primiano@chromium.org2015-01-091-1/+2
| | | | | | | | | | | I whish I knew how this worked for months in chromium as it is clearly wrong. As reported by azarchs@ it is breaking the cygprofile instrumented build. BUG=chromium:410294 Review URL: https://breakpad.appspot.com/1784002 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1413 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Introduce microdump writer class.primiano@chromium.org2014-10-281-3/+8
| | | | | | | | | | | | | | | | | | | Microdumps are a very lightweight variant of minidumps. They are meant to dump a minimal crash report on the system log (logcat on Android), containing only the state of the crashing thread. This is to deal with cases where the user has opted out from crash uploading but we still want to generate meaningful information on the device to pull a stacktrace for development purposes. Conversely to conventional stack traces (e.g. the one generated by Android's debuggerd or Chromium's base::stacktrace) microdumps do NOT require unwind tables to be present in the target binary. This allows to save precious binary size (~1.5 MB for Chrome on Arm, ~10 MB on arm64). More information and design doc on crbug.com/410294 BUG=chromium:410294 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1398 4c0a9323-5329-0410-9bdc-e9ce6186880e
* size_limit_ member of minidump_descriptor ignored in copy constructorted.mielczarek@gmail.com2013-02-141-1/+3
| | | | | | Patch by Avishai Hendel <avish@fb.com>, R=mkrebs at https://codereview.appspot.com/7305060/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1114 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Fix unused variable warning in optimized build (fix proveded by Matthew Riley)ivan.penkov@gmail.com2012-11-211-2/+3
| | | | | | | | http://breakpad.appspot.com/499002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1084 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Allow setting a new MinidumpDescriptor on ExceptionHandler, also expose ↵ted.mielczarek@gmail.com2012-09-171-0/+15
| | | | | | | | directory from MinidumpDescriptor R=digit at https://breakpad.appspot.com/452003/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1037 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Adding a way to create an ExceptionHandler that takes in a file descriptorjcivelli@chromium.org2012-08-091-0/+61
where the minidump should be created, without the need of opening any other file. BUG=None TEST=Run unit-tests. git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1007 4c0a9323-5329-0410-9bdc-e9ce6186880e
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