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path: root/llvm/unittests/ObjectYAML/MinidumpYAMLTest.cpp
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* Minidump: Add support for reading/writing stringsPavel Labath2019-04-051-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Strings in minidump files are stored as a 32-bit length field, giving the length of the string in *bytes*, which is followed by the appropriate number of UTF16 code units. The string is also supposed to be null-terminated, and the null-terminator is not a part of the length field. This patch: - adds support for reading these strings out of the minidump file (this implementation does not depend on proper null-termination) - adds support for writing them to a minidump file - using the previous two pieces implements proper (de)serialization of the CSDVersion field of the SystemInfo stream. Previously, this was only read/written as hex, and no attempt was made to access the referenced string -- now this string is read and written correctly. The changes are tested via yaml2obj|obj2yaml round-trip as well as a unit test which checks the corner cases of the string deserialization logic. Reviewers: jhenderson, zturner, clayborg Subscribers: llvm-commits, aprantl, markmentovai, amccarth, lldb-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59775 llvm-svn: 357749
* [ObjectYAML] Add basic minidump generation supportPavel Labath2019-03-221-0/+141
Summary: This patch adds the ability to read a yaml form of a minidump file and write it out as binary. Apart from the minidump header and the stream directory, only three basic stream kinds are supported: - Text: This kind is used for streams which contain textual data. This is typically the contents of a /proc file on linux (e.g. /proc/PID/maps). In this case, we just put the raw stream contents into the yaml. - SystemInfo: This stream contains various bits of information about the host system in binary form. We expose the data in a structured form. - Raw: This kind is used as a fallback when we don't have any special knowledge about the stream. In this case, we just print the stream contents in hex. For this code to be really useful, more stream kinds will need to be added (particularly for things like lists of memory regions and loaded modules). However, these can be added incrementally. Reviewers: jhenderson, zturner, clayborg, aprantl Subscribers: mgorny, lemo, llvm-commits, lldb-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59482 llvm-svn: 356753
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