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Lars Volker 54a54702a1 Fix race in ExceptionHandler::GenerateDump() 
When writing a minidump on Linux, we called clone() in
linux/handler/exception_handler.cc with the CLONE_FILES flag. If the
parent process died while the child waited for the continuation signal,
the write side of the pipe 'fdes' stayed open in the child. The child
would not receive a SIGPIPE and would wait forever.

To fix this, we clone without CLONE_FILES and then close the
read-side of fdes in the master before the ptrace call. That way, if the
master dies, the child will receive a SIGPIPE and will die, too.

To test this I added a sleep() call before SendContinueSignalToChild()
and then killed the master, manually observing that the child would die,
too.

Bug: 728
Change-Id: Ifd72de835a34e7d9852ae1a362e707fdc6c96c7e
Reviewed-on: https://chromium-review.googlesource.com/464708
Reviewed-by: Mike Frysinger <vapier@chromium.org>
2017-05-10 18:02:37 +00:00
android sample_app: enable C++11 for Android builds 2016-04-04 21:35:26 -04:00
autotools autotools: refresh config.{sub,guess} 2017-02-06 13:57:59 -05:00
docs Update links 2016-11-18 17:24:37 +00:00
m4 autotools: move -W flags to configure detection 2017-02-16 22:48:56 +00:00
scripts travis: add a clang build 2017-02-17 16:53:16 +00:00
src Fix race in ExceptionHandler::GenerateDump() 2017-05-10 18:02:37 +00:00
.gitignore GitIgnore: Add dump_syms_mac 2016-11-14 20:16:05 +00:00
.travis.yml travis: add a clang build 2017-02-17 16:53:16 +00:00
aclocal.m4 autotools: move -W flags to configure detection 2017-02-16 22:48:56 +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 Make minidump name generation on Linux as random as possible 2017-04-12 18:51:24 +00:00
configure.ac Make minidump name generation on Linux as random as possible 2017-04-12 18:51:24 +00:00
default.xml roll lss deps 2017-03-01 21:40:42 +00:00
DEPS roll lss deps 2017-03-01 21:40:42 +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 autotools: move -W flags to configure detection 2017-02-16 22:48:56 +00:00
Makefile.in autotools: move -W flags to configure detection 2017-02-16 22:48:56 +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.