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Mike Frysinger 59d89be2d6 linux_core_dumper: support NT_SIGINFO for reading crashing address 
The current core dumper only parses NT_PRSTATUS notes.  With signal
details, this note only includes three fields: signo, code, and errno.
We set exception_code to signo and exception_flag to code.  The errno
value isn't set by the kernel, so there's no need to save it.

However, we never fill in exception_address which means all converted
crashes look like they happen at address 0.  This implies a NULL jump
which is usually not the case, so it's just confusing.  The prstatus
structure doesn't offer anything directly that tracks this.

Starting with linux-3.7, the kernel writes out the full siginfo
structure in the NT_SIGINFO note.  So lets support that to pull out
si_addr which, for a bunch of common signals, is the value we want in
exception_address.

The size of the siginfo_t structure should be locked to 128 bytes at
build time for all architectures, so this should hopefully be stable.

Bug: google-breakpad:790
Change-Id: I458bad4787b1a8b73fad8fe068e9f23bec957599
Reviewed-on: https://chromium-review.googlesource.com/c/1497661
Reviewed-by: Mark Mentovai <mark@chromium.org>
2019-03-03 17:39:36 +00:00
.github support mistaken-pull-closer for automatically clearing incoming PRs 2018-12-07 01:49:55 +00:00
android sample_app: enable C++11 for Android builds 2016-04-04 21:35:26 -04:00
autotools Fix Travis build by running tests as root 2018-02-20 11:08:52 +00:00
docs Add optional field indicating multiple symbols at an address 2017-11-29 21:33:23 +00:00
m4 Only use O_CLOEXEC on platforms that support it 2017-05-10 21:32:37 +00:00
scripts Fix Travis build by running tests as root 2018-02-20 11:08:52 +00:00
src linux_core_dumper: support NT_SIGINFO for reading crashing address 2019-03-03 17:39:36 +00:00
.gitignore drop glog from the checkout 2017-09-13 21:35:17 +00:00
.travis.yml Fix Travis build by running tests as root 2018-02-20 11:08:52 +00:00
aclocal.m4 Define and use a a new MDRawContextARM64 2018-08-01 19:27:25 +00:00
appveyor.yml Appveyor CI for Windows MSVS build 2017-02-13 17:57:15 +00:00
AUTHORS Make build system less annoying (#8) r=bryner 2006-08-30 20:05:05 +00:00
breakpad-client.pc.in make "make install" also install headers and pkgconfig files 2014-08-27 02:10:55 +00:00
breakpad.pc.in make "make install" also install headers and pkgconfig files 2014-08-27 02:10:55 +00:00
ChangeLog Initial import, which includes the Windows client-side dump_syms tool, and 2006-08-25 21:14:45 +00:00
codereview.settings Switch to Gerrit for code reviews 2016-07-27 20:07:49 +00:00
configure Add support for parsing the DW_AT_ranges attributes 2018-08-13 19:12:00 +00:00
configure.ac Fix Travis build by running tests as root 2018-02-20 11:08:52 +00:00
default.xml Roll DEPS for googletest to 5ec7f0c4. 2019-02-28 03:09:32 +00:00
DEPS Roll DEPS for googletest to 5ec7f0c4. 2019-02-28 03:09:32 +00:00
INSTALL autoreconf -f -i 2013-12-10 17:53:50 +00:00
LICENSE Renaming file COPYING to LICENSE and appending the disclaimer from src/common/convert_UTF.h to LICENSE. 2014-02-27 19:23:16 +00:00
Makefile.am Add support for parsing the DW_AT_ranges attributes 2018-08-13 19:12:00 +00:00
Makefile.in Add support for parsing the DW_AT_ranges attributes 2018-08-13 19:12:00 +00:00
NEWS Initial import, which includes the Windows client-side dump_syms tool, and 2006-08-25 21:14:45 +00:00
README.ANDROID Update symbol file documentation links. 2016-06-10 06:29:06 -04:00
README.md Appveyor CI for Windows MSVS build 2017-02-13 17:57:15 +00:00

README.md

Breakpad

Breakpad is a set of client and server components which implement a crash-reporting system.

Getting started (from master)

  1. First, download depot_tools and ensure that they’re in your PATH.

  2. Create a new directory for checking out the source code (it must be named breakpad).

    mkdir breakpad && cd breakpad

  3. Run the fetch tool from depot_tools to download all the source repos.

    fetch breakpad
cd src

  4. Build the source.

    ./configure && make

    You can also cd to another directory and run configure from there to build outside the source tree.

    This will build the processor tools (src/processor/minidump_stackwalk, src/processor/minidump_dump, etc), and when building on Linux it will also build the client libraries and some tools (src/tools/linux/dump_syms/dump_syms, src/tools/linux/md2core/minidump-2-core, etc).

  5. Optionally, run tests.

    make check

  6. Optionally, install the built libraries

    make install

If you need to reconfigure your build be sure to run make distclean first.

To update an existing checkout to a newer revision, you can git pull as usual, but then you should run gclient sync to ensure that the dependent repos are up-to-date.

To request change review

  1. Follow the steps above to get the source and build it.

  2. Make changes. Build and test your changes. For core code like processor use methods above. For linux/mac/windows, there are test targets in each project file.

  3. Commit your changes to your local repo and upload them to the server. http://dev.chromium.org/developers/contributing-code e.g. git commit ... && git cl upload ... You will be prompted for credential and a description.

  4. At https://chromium-review.googlesource.com/ you'll find your issue listed; click on it, then “Add reviewer”, and enter in the code reviewer. Depending on your settings, you may not see an email, but the reviewer has been notified with google-breakpad-dev@googlegroups.com always CC’d.