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* Basic handling of CIE version 4 in dwarf readingScott Graham2016-11-021-1/+7
| | | | | | | | | | | | | | | | | CIE looks like it's been emitted by clang since ~May 2015 [1]. This means that we didn't have any CFI because this parse aborted, which meant that all stack walks reverted to stack scanning. Allow expected values for address size and segment descriptor size through so that dump_syms can generate at least somewhat reasonable data. [1]: http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20150518/277292.html R=mark@chromium.org BUG=chromium:627529 Change-Id: I6dc92f51c4afd25c2adff92c09ccb8bb03bf9112 Reviewed-on: https://chromium-review.googlesource.com/406012 Reviewed-by: Mark Mentovai <mark@chromium.org>
* Use stdint types everywhereted.mielczarek@gmail.com2013-03-061-11/+11
| | | | | | R=mark at https://breakpad.appspot.com/535002/ git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1121 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad: Avoid using the C++ <cfoo> headers.ted.mielczarek2010-06-251-3/+3
| | | | | | | | | | | | This patch avoids unnecessary use of the <cfoo> headers in files that don't actually use the identifiers they declare in the std:: namespace. It also changes some files to better conform with the "Names and Order of Includes" rules in the Google C++ Style Guide. A=jimb R=mark git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@619 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad DWARF CFI support: Cleanups requested by Nealted.mielczarek2010-06-251-7/+9
| | | | | | | | I came across a bunch of comments Neal had made on issue 55011 that I hadn't addressed. This patch takes care of them. A=jimb R=thestig git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@618 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Parse the .eh_frame section.jimblandy2010-03-161-7/+100
| | | | | | | | | | | | | | | | | | | | | | | | Extend google_breakpad::CFISection with the ability to produce .eh_frame data. Entry headers have a different format, and pointers can be encoded in new and fascinating ways. Extend dwarf2reader::CallFrameInfo to be able to parse either DWARF CFI or .eh_frame data, as determined by an argument to the constructor. Cope with variations in header formats, encoded pointers, and additional data in 'z' augmentation data blocks. Extend the unit tests appropriately. Extend dump_syms to look for a .eh_frame section, and if it is present, find the necessary base addresess and parse its contents. There's no need for DwarfCFIToModule to check the version numbers; if CallFrameInfo can parse it, DwarfCFIToModule should be able to handle it. Adjust tests accordingly. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@552 4c0a9323-5329-0410-9bdc-e9ce6186880e
* Breakpad Linux dumper: Add support for dumping DWARF CFI as STACK CFI records.jimblandy2010-03-161-0/+103
Define a new DWARF parser class, dwarf2reader::CallFrameInfo. Extend google_breakpad::Module to store and write out 'STACK CFI' records. Define a new google_breakpad::DwarfCFIToModule class, to accept DWARF CFI data from the parser and populate a Module with the equivalent STACK CFI records. Extend the Linux symbol dumping tool, dump_syms, to use dwarf2reader::CallFrameInfo, google_breakpad::DwarfCFIToModule, and google_breakpad::Module to extract DWARF CFI from the executable or shared library files and write it to the Breakpad symbol file. Define CFISection, a new class derived from TestAssembler::Section, for use in creating DWARF CFI data for test cases. a=jimblandy, r=nealsid git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@550 4c0a9323-5329-0410-9bdc-e9ce6186880e