Previously we would rely on implicit re-raising to deliver signals to
the underlying handler on POSIX systems if the signal is detected as
being re-raisable via WillSignalReraiseAutonomously(). This detection
mechanism is imperfect, as it will misclassify signals delivered as
a result of kill(2) when passing a signal number usually used for
synchronous signals, but now also asynchronous MTE tag check faults,
which are delivered as SIGSEGV signals on Linux. As a result, these
signals would not be re-raised and therefore would be discarded.
Although we could, for example, teach WillSignalReraiseAutonomously()
about MTE faults, the signal would still be re-raised via raise(3)
and therefore we would lose the information in siginfo.
We can avoid discarding these signals on Linux while at the
same time preserving the siginfo by making use of the syscall
rt_tgsigqueueinfo(2) which delivers a signal together with a
user-provided siginfo. The problem still exists on non-Linux POSIX
systems because this syscall is Linux-specific.
With kernel versions prior to 3.9, the kernel will reject the
rt_tgsigqueueinfo() syscall with EPERM. If that happens, follow
the non-Linux code path.
Change-Id: Ia410fbd651a756945c9402e361edfd5c520453d6
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3300991
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Collingbourne <pcc@chromium.org>
Causes test failures on older versions of Android (e.g. Marshmallow).
Also reverts follow-up CL "Fix dead-code warning in util/posix/signals.cc".
This reverts commits ab9a87fb5463e5d1579e16bacb1f79d0dd71119b and
04431eccfe878570b1c74a5b376d96b4c9c7e0e8.
Bug: 1272877
Change-Id: Id9ef420516c932147b6c8b67d9f4daf9d31d9b03
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3300986
Reviewed-by: Peter Boström <pbos@chromium.org>
Commit-Queue: Peter Collingbourne <pcc@chromium.org>
Testing in beta has shown a few examples of a cropped intermediate dump
still providing useful information, but due to the order intermediate
dump data is written, could be improved.
- Change the order of writing data to the intermediate dump by
increasing the priority of the Exception block from:
Header / Process / System / Threads/ Modules / Exception
to
Header / Process / System / Exception / Threads / Modules
- Annotate minidump reports generated from incomplete intermediate
dumps with the key 'crashpad_intermediate_dump_incomplete'.
- Handle partial exception contexts rather than throwing them away.
Change-Id: I543c1d3135c42e5b8e339e498ea0c86002f37ea3
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3294862
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Change IOSIntermediateDumpReader to take a new interface that can be
backed by a FilePath (as it is now) or a StringFile byte array, which
can be useful for tests, especially with fuzzing.
Change-Id: I02a25cfb7cd204975d1bcce80201bd10944f3f2e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3270755
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Only the handler uses util/net. After
8342e6bd613a5b2e44eca1d74288e3115ccef139, the introduction of an
Objective-C class caused Chromium to emit duplicate class defintion
warnings in the component build.
Bug: chromium:1270609
Change-Id: I2770528347aef406bb21a79d295f702498f7b37e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3290276
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This implements a per-report retry rate limit (as opposed to per upload
rate limit in ShouldRateLimitUpload). When a report upload ends in a
retry state, an in-memory only timestamp is stored with the next
possible retry time. This timestamp is a backoff from the main thread
work interval, doubling on each attemt. Because this is only stored in
memory, on restart reports in the retry state will always be tried
once, and then fall back into the next backoff. This continues until
5 retry attempts are reached.
Change-Id: Ibde8855a8a9f0743f0b0bd4d5e3de8a45c64bcb6
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3087723
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
This unblocks a roll of crashpad into chromium.
Bug: None
Change-Id: I54fc53e0b53b8a7c7ff8e28c4657b46587bfad8d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3287226
Commit-Queue: Peter Boström <pbos@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This pulls in "base/ignore_result.h" from mini_chromium through DEPS and
updates existing uses of "base/macros.h" to use "base/ignore_result.h".
Bug: chromium:1010217
Change-Id: I283e2bcfb2775de420d7e767b3b4a639dbba9e20
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3286105
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
Previously we would rely on implicit re-raising to deliver signals to
the underlying handler on POSIX systems if the signal is detected as
being re-raisable via WillSignalReraiseAutonomously(). This detection
mechanism is imperfect, as it will misclassify signals delivered as
a result of kill(2) when passing a signal number usually used for
synchronous signals, but now also asynchronous MTE tag check faults,
which are delivered as SIGSEGV signals on Linux. As a result, these
signals would not be re-raised and therefore would be discarded.
Although we could, for example, teach WillSignalReraiseAutonomously()
about MTE faults, the signal would still be re-raised via raise(3)
and therefore we would lose the information in siginfo.
We can avoid discarding these signals on Linux while at the
same time preserving the siginfo by making use of the syscall
rt_tgsigqueueinfo(2) which delivers a signal together with a
user-provided siginfo. The problem still exists on non-Linux POSIX
systems because this syscall is Linux-specific.
Change-Id: I6df58d9371e29f75e19b4f899b723d4047f12936
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3278691
Commit-Queue: Peter Collingbourne <pcc@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This adds support for capturing memory snippets for addresses
currently stored in registers to Linux/Android/CrOS.
Modeled after the existing support on Windows.
Bug: crashpad:30
Change-Id: Ib7cb523555a6e8e4d70145c205d67dcfbc9c7fcc
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3273712
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
This effectively reverts f0ee5f0efee651ab82aa854761f107193b3db5de, but
updates the subclass with the new required NSStream methods. Crashpad
switched to using CFReadStream because NSInputStream required overriding
two private methods of NSInputStream in order to use it with
NSURLConnection. With Mac OS X 10.11 (the earliest that Chromium
supports), this is no longer the case. On iOS, using the private
CFReadStreamCreate() API is not permissible. Switch back to using a
custom NSInputStream subclass instead.
Bug: crashpad:382
Change-Id: I92b1260f49c6fa6c304475f7dc9b27ae1a5f35c4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3271448
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
size_t is written to intermediate dump properties, but the parser was
reading off_t. off_t can go negative, which is a bad thing to pass
to a std::vector constructor.
Bug: crashpad:31
Change-Id: I52ebda0b29ece50d6d1cbc9064a70b2e221a4df1
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3261749
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This will prune the database on a daily basis, in accordance with the
specified condition. This will also unlock any leftover intermediate
dump files.
Bug: crashpad:31
Change-Id: I229f8b8006b44d31062fbf73bb9d316d69ab2dcf
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3231618
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Instead use a custom mechanism based on the filename. Rather than a
filename of <uuid>, instead name the file <bundle-id>|<uuid>[.locked].
A locked file will have the optional .locked extension. Files can be
unlocked after writing an intermediate dump, or during initialization by
looking for matching bundle-ids.
Clients that call ProcessIntermediateDumps() will clean up any leftover
locked intermediate dumps. Clients that never call
ProcessIntermediateDumps, such as extensions that leave this up to the
main application, will be cleaned up in a followup change.
Bug: crashpad:31
Change-Id: Icd4aaa3b79351870fbe9b8463cfbdf7cff7d5f87
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3229429
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
Manage the intermediate minidump generation, and own the crash report
upload thread and database.
Change-Id: I272d790a827cd13f6872e56f4675f366d13719c5
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3087721
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
The way that division operations behave have changed between Armv7
and Armv8. On the later one, divisions by zero will *not* yield an
exception of any kind (for both a 32bit and 64bit app), for hardware
integer divide operation.
On Arm processors exceptions may also be a factor of:
- if the hardware implementation supports it.
- if the kernel has set the proper internal state registers/flags.
- C library implementations (e.g. libgcc x clang_rt).
Aside that, a division by zero is within the realm of UD (Undefined
Behavior) in C/C++.
Since there are two categories of tests (explicit raise x caused by
instructions), it just makes sense to disable the second for Arm
since there is no reliable way to cause a SIGFPE without an explicit
raise() POSIX call.
For x86, we keep the previous implementation idea but streamlined
the code by deploying 'volatile' to ensure that the compiler
won't optimize away the result of the division (i.e no need
to call stat() and fstat()).
Bug: chromium:919548, chromium:1184398
Change-Id: Ib0fd4bdf503dcd50149dccae0577c777488c0238
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3213431
Commit-Queue: Adenilson Cavalcanti <cavalcantii@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This change was partially scripted and partially done manually with vim
regex + manually placing the deleted constructors.
The script change looked for destructors in the public: section of a
class, if that existed the deleted constructors would go before the
destructor.
For manual placement I looked for any constructor in the public: section
of the corresponding class. If there wasn't one, then it would ideally
have gone as the first entry except below enums, classes and typedefs.
This may not have been perfect, but is hopefully good enough. Fingers
crossed.
#include "base/macros.h" is removed from files that don't use
ignore_result, which is the only other thing defined in base/macros.h.
Bug: chromium:1010217
Change-Id: I099526255a40b1ac1264904b4ece2f3f503c9418
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3171034
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
This migrates all the logic that used to live in ios/snapshots that
gathers all the various information during an exception.
Everything in InProcessIntermediateDumpHandler is considered
`RUNS-DURING-CRASH`.
Change-Id: Icc47c9de0f66be2b14a46a13d1038176082a3218
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2920547
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
More cleanly integration the ObjExceptionPreprocessor with the
Crashpad client and in process handler, to record bought
'caught' and 'uncaught' NSExceptions.
Bug: crashpad: 31
Change-Id: I77a77ca6d893cdc74da476c1888d9bcb338339d8
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2920851
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
UMA_HISTOGRAM_COUNTS is documented as deprecated and defaults to
creating larger histograms than are needed by Crashpad.
Bug: chromium:1237013
Change-Id: Ic133e05bce41759a11dbb523d84afc5246c6dc37
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3075884
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
The actual number of enums that will be recorded is approx ~75.
Bug: crashpad: 31
Change-Id: If33671c7627d6e55e94c86308c8482711e33cef4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3035823
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Update ProcessMemoryLinux to be constructed from PtraceConnection
instead of being Initialize()d with a pid_t.
This allows consolidating PtraceClient's BrokeredMemory with
ProcessMemoryLinux and providing the PtraceConnection as a alternative
to the memory file (previously only done for brokered connections).
Change-Id: I1363e208030eaf595fb8051e9a2c6b255c1f9886
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3072402
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
This will accommodate moving third_party/mini_chromium around.
The default location is unchanged for now.
There are GN variables that may need to be updated when Fuchsia's source
re-organizes its layout:
* mini_chromium_source_parent : this contains a BUILD.gn with groups and
encloses the mini_chromium_source_root. This is controlled by the
structure of the project that depends on this project.
* _mini_chromium_source_root : this is what is normally checked out from
git, the upstream source directory
* mini_chromium_import_root : points inside source_root to make GN files
accessible.
This first step breaks out case logic for "if (crashpad_is_in_fuchsia)"
even if the value is unchanged for now. This will faciliate a smaller
change when Fuchsia re-structures third_party sources.
Change-Id: I09e5362f4be8fdb440e3891422881b1053052341
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3062424
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
These macros were introduced in 2018. See
https://github.com/google/googletest/commit/c5f08bf.
Mark mocks "override" where needed and move
"-Wno-inconsistent-missing-override" to gmock_all_test since
googletest/googlemock/test/gmock-function-mocker_test.cc doesn't always
specify "override" on mocks.
Change-Id: Icdc0a0ac986ab8d8d904173d093096c8f666ec04
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3079439
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Standalone Crashpad for Android can now be built with gn.
Change-Id: I0ee7f8e1af8c2bc0edb88e93b345abd7d739f33c
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3034984
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
It's currently included by string_piece.h, but that include is going
away.
Bug: crashpad:none
Change-Id: I5214e888f086b12e91121f81ef94c8038fe9558a
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3015681
Commit-Queue: Hans Wennborg <hans@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Remove unneeded base/strings/stringprintf.h includes.
ARCH_CPU_X86_64 macro is used without including build/build_config.h
Missing base/check.h
Change-Id: Ib7864ab7b30ef8fc37649783f7b90b618d0d6a0b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2920552
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Chromium moved base::size() to base/cxx17_backports.h, so do the same in
mini_chromium and update the users in Crashpad.
Roll mini_chromium to 2f06f83f to make the new base header available.
Bug: chromium:1210983
Change-Id: Ie3dc4c189dcdfcac030b95fe285f94abb29a27bf
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2917779
Commit-Queue: Lei Zhang <thestig@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Due to the limitations of in-process handling, an intermediate dump file
is written during exceptions. The data is streamed to a file using only
in-process safe methods. The file format is similar to binary JSON,
supporting keyed properties, maps and arrays.
- Property [key:int, length:int, value:intarray]
- StartMap [key:int], followed by repeating Properties until EndMap
- StartArray [key:int], followed by repeating Maps until EndArray
- EndMap, EndArray, EndDocument
Similar to JSON, maps can contain other maps, arrays and properties.
Once loaded, the binary file is read into a set of data structures that
expose the data, maps and arrays.
Bug: crashpad: 31
Change-Id: I43a19204935303afd753c8c7090c54099634ccd6
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2870807
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Via tools/mac/rewrite_modern_objc.py in the Chromium repo
Bug: chromium:324079
Change-Id: I3160331899b3ea75e0ebc78abd9a0a84e9339b40
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2904179
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Leonard Grey <lgrey@chromium.org>
Adds wrapper to vm_read and vm_deallocate memory to allow for safe
in-process memory reads during crashes.
Also adds a logging utility safe for in-process exception handling.
Bug: crashpad: 31
Change-Id: I658f3181cbec40a79e304b7306466e10c003564f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2875349
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
There's no default curl available when building on host Linux in the
Fuchsia tree, so add an explicit dependency when using the curl
transport in Fuchsia.
Change-Id: I0afe5e2cc8ea0a70f3ef4e1635d4d808237c93b6
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2832147
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>
The //build/confic/mac/BUILD.gn which defines this target does not
build properly in some cronet ios build configurations, and the
dependency is not necessary for ios builds.
Fixed: 1161219
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2656759
Commit-Queue: Ken Rockot <rockot@google.com>
Auto-Submit: Ken Rockot <rockot@google.com>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#848224}
Message-Id: Merged from chromium a9f64a9dbf42e411a38e3c93b131984a0a02a84a
Change-Id: Ifd03c41d42b3756cb77bb7cc3ece5d3f23b1262d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2818147
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Also fixes a usage of ->assign in the class which will be unsafe to use.
Bug: crashpad:31
Change-Id: I434df35b0669dde2323817f3c0cef1727926c85f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2650088
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This change removes usages of the base::char16 and base::string16 type
aliases in favor of using char16_t and std::u16string directly.
Bug: chromium:1184339
Change-Id: Ieb790cbe2ce98d91865cd21d98616195a57b3903
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2742482
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Use SIMULATOR_MODEL_IDENTIFIER to get the equivalent device model.
Bug: crashpad:31
Change-Id: I17950d77c214533614781a5ca41170d6c3a77ae3
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2726978
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This particular action was crashing when being traced.
Bug: fuchsia:68780
Change-Id: Ia83d48b2a88f53bd8e139ea9c787429f93a24533
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2662398
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
This change replaces calls to the deprecated base::c16memcmp,
base::c16len and base::c16memcpy in favor of using static methods on
std::char_traits<base::char16> directly.
Bug: chromium:911896
Change-Id: I739410cf41a77da9d43e59513cace086f93f0c36
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2637704
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
This change removes several unaligned accesses, as well a null pointer
offset and an out of bounds array access.
Bug: fuchsia:46805
Change-Id: I0110d0b7faf672655d978894b868760eee7b2988
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2583025
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
When using the new Goma RBE and use_system_xcode, the referenced .defs
input files are located below the root build directory and so are
considered build outputs. The sdk_inputs target is an empty action that
lets GN consider them to be generated outputs.
Bug: chromium:1157103
Change-Id: I38a959d2c00c20fa403a1c15b1eac69ef2043d5d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2582922
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
C++20 removed std::allocator<void>, so we need to use a void* instead.
TEST=no behavior change
Change-Id: Ifd1ee686e86ee55accab8c4b23e80000cdbdf227
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2578864
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
The broker attempts to use sbrk() to allocate memory to track ptrace
attachments. If the process failed due to an OOM, this system call might
fail, the broker falls back to saving attachments on the stack, and then
overruns the stack.
This change updates the broker to use sys_mmap() instead of sbrk(),
which is expected to work at least as well. If sys_mmap() fails or
the first mapped page is exhausted, further attachments fail without
attempting to save them to the stack.
Bug: chromium:1128441
Change-Id: Ibffaa986403adaf3178ee77e6d210053fbf60f26
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2488280
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Previously, these tests expected a specifically formatted prefix to log
messages, but logging on Chrome OS uses a different format for the
prefix.
This change updates the tests to expect log messages at the end of a log
line, but ignores the prefix.
Change-Id: Iff748eec04d0fc5a0a786a5676a74e2aad1ec243
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2503462
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
LogOutputStreamTest.{WriteAbort,FlushAbort} are flaky because the logcat
is sometimes overloaded earlier than expected causing FlushAbort to fail
during Write() or either test to fail to write the abort message.
This change updates LogOutputStream to detect logcat overloads (EAGAIN)
and make one attempt at writing the abort message, even if the output
cap hasn't been reached.
This change also updates LogOutputStream's interface to defer log writes
to a Delegate. In tests, the Delegate implements a mock log and in
production, writes to Android's logcat.
I've removed VerifyGuards because LogOutputStream no longer writes
guards if Write() has never been called and the guards are tested in
other tests.
Change-Id: Icad83524aaf573c3e082469f1de095b6ca2c4839
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2439641
Reviewed-by: Mark Mentovai <mark@chromium.org>
Define templates for potentially throwing functions at C++17
when noexcept becomes part of a function's type.
Change-Id: I8e9cbf4b0702ad6b9b9a9d7560418908045fd11a
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2454835
Reviewed-by: Eric Astor <epastor@google.com>
Includes DEPS roll of mini_chromium:
f0bd14b Pull build_config.h source set into separate build file
65fb5c9 Update path to win_helper after moving to build/config
Change-Id: Ic9f5c68e2cebd8bf86492766684bdb422da1aa9e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2426989
Reviewed-by: Mark Mentovai <mark@chromium.org>
The Windows implementation of CaptureContext used a macro to refer to
the offset of a field in a struct.
Bug: chromium:762167
Change-Id: I621d5c88283b1d066158559aade8811a9825c72e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2426743
Reviewed-by: Mark Mentovai <mark@chromium.org>
Because of the multiple-worlds building of the Crashpad code in the
Fuchsia tree (with the Fuchsia BUILDCONFIG.gn in particular) there's no
good location to globally disable Wconversion for all of crashpad.
This can be somewhat-improved by using a GN template
crashpad_static_library() similar to the existing crashpad_executable()
template.
Includes mini_chromium DEPS roll:
68da43e Fix a couple trucation warnings
88ce866 build: set include dirs
Bug: fuchsia:58162
Change-Id: I638fcf858c35b9a858ca2c410636f8c99603aed2
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2411131
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>
This change prepares crashpad for the upcoming switch of base::string16
to std::u16string on all platforms. It does so by replacing Windows-only
instances of base::string16 with std::wstring, and using appropriate
string utility functions.
Bug: chromium:911896
Change-Id: Ibb0b8a4e4dc7fae1d24d18823f8dbb6da31f8239
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2332402
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
CFI attempts to verify that the dynamic type of a function object
matches the static type of the function pointer used to call it.
https://clang.llvm.org/docs/ControlFlowIntegrity.html#indirect-function-call-checking
However, the analyzer does not have enough information to check
cross-dso calls. In these instances, CFI crashes upon calling the
function with an error like:
pthread_create_linux.cc:60:16: runtime error:
control flow integrity check for type
'int (unsigned long *, const pthread_attr_t *, void *(*)(void *), void *)'
failed during indirect function call
(/lib/x86_64-linux-gnu/libpthread.so.0+0x9200):
note: (unknown) defined here pthread_create_linux.cc:60:16:
note: check failed in crashpad_handler,
destination function located in /lib/x86_64-linux-gnu/libpthread.so.0
Change-Id: Ib29dabfe714f2ee9cc06a5d17e6899ff81a06df4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2339332
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
A new bug in macOS 11.0db6 20A5364e has broken the {CTL_KERN,
KERN_PROCARGS2} sysctl such that it will not work properly unless
provided with a buffer at least 17 bytes larger than originally
indicated. Work around the bug by providing a buffer a whole 32 bytes
larger.
Bug: crashpad:347, crashpad:355
Test: crashpad_util_test ProcessInfo.{Self,SelfTask,Forked}
Change-Id: I9324a63390875308979a10fefcd4c1c880651aee
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2399646
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
When building for macOS and configured with target_cpu =
"mac_universal", bi-architecture x86_64/arm64 output will be produced.
mac_universal is, so far, a “Crashpad special” that will only work with
mini_chromium and the standalone Crashpad build, and not the in-Chromium
build. It exists to support Keystone, which intends to ship as
x86_64/arm64 universal.
Includes:
Update mini_chromium to e0008f2714a76c7f2a3854fa75774427a886d6b9
e0008f2714a7 mac-arm64: Allow target_cpu = "mac_universal" to create
universal builds
Bug: crashpad:345
Change-Id: I5ff2dce5ffae58186e33757aa94587f8eca20b99
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2387410
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
__builtin_trap uses ud2 on x86_64, producing a SIGILL. On arm64, it uses
brk #1, producing a SIGTRAP. Test expectations must be adjusted
accordingly.
Bug: crashpad:345
Test: crashpad_snapshot_test MachOImageAnnotationsReader.CrashModuleInitialization, crashpad_util_test ExcServerVariants.*,ExceptionPorts.*
Change-Id: I22e75b7b48b8887031b1d95f1cea8a09733daf49
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2386464
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
On x86_64, it’s impossible for a signal handler distinguish between
SIGBUS caused synchronously by a hardware fault and SIGBUS raised
asynchronously by software. This remains true on arm64, and is expanded
to include both SIGILL and SIGSEGV.
Bug: crashpad:345
Test: crashpad_util_test Signals.Raise_HandlerReraisesTo*
Change-Id: I181ea35121048dc0c666e2346340e698220ca650
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2386463
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
MacOSXMinorVersion reported just the “y” value for an OS version 10.y.z.
This is no longer sufficient to identify OS versions accurately in macOS
11. A new MacOSVersionNumber function reports the full OS version as
“xxyyzz” for an OS version x.y.z. This is the same format used by
<Availability.h> __MAC_* macros since 10.10.
MacOSXVersion is also renamed to MacOSVersionComponents for
disambiguation and proper modern nomenclature.
Bug: crashpad:347
Test: crashpad_snapshot_test SystemSnapshotMacTest.OSVersion, crashpad_util_test MacUtil.MacOSVersionNumber
Change-Id: I66421954f021c0627095474cb26359970fcd9101
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2386386
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
We're working to decouple ChromeOS and Linux builds of Chrome.
Currently OS_CHROMEOS sets OS_LINUX, so we need to refactor
current OS_LINUX usage to make this explicit.
More information can be found at go/cros_is_linux_os_linux
BUG=chromium:1110266
TEST=manual build
Change-Id: Ie765da1ab6a0bf0286538ae1df3697abaa29aeaa
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2391116
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
4ae896bad0af replaced OS_MACOSX with OS_APPLE and introduced OS_MAC,
disentangled from OS_IOS. This allows !defined(OS_IOS) to be written
more directly as defined(OS_MAC) in cases where OS_APPLE is assured.
Change-Id: I8848503d3318038865dd4c8586a81ce82764af0a
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2384318
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
The macOS 11.0 SDK, as of Xcode 12b6 12A8189n, has not updated
<AvailabilityMacros.h> with a MAC_OS_X_VERSION_11_0 or
MAC_OS_X_VERSION_10_16 constant. However, the <Availability.h> interface
has been updated to provide both __MAC_11_0 and __MAC_10_16.
<AvailabilityMacros.h>’s MAC_OS_X_VERSION_MAX_ALLOWED, which is supposed
to identify the SDK version, is broken in the 11.0 SDK in that whenever
the deployment target is set to 10.15 or earlier, the SDK will be
mis-identified through this interface as 10.15. When using the
<Availability.h> equivalent, __MAC_OS_X_VERSION_MAX_ALLOWED, the 11.0
SDK is identified as 10.16 (arguably it should be internally versioned
as 11.0, but at least this interface allows it to be detected
unambiguously.) It’s clear that the <AvailabilityMacros.h> interface
provides no meaningful support for the macOS 11.0 SDK at all, but
<Availability.h> does.
<Availability.h> was introduced in the Mac OS X 10.5 SDK, so there is no
relevant SDK version compatibility problem with this interface.
Key differences between these interfaces for the purposes used by
Crashpad:
- <AvailabilityMacros.h> → <Availability.h>
- MAC_OS_X_VERSION_MIN_REQUIRED (DT) → __MAC_OS_X_VERSION_MIN_REQUIRED
- MAC_OS_X_VERSION_MAX_ALLOWED (SDK) → __MAC_OS_X_VERSION_MAX_ALLOWED
- MAC_OS_X_VERSION_x_y → __MAC_x_y
- <Availability.h> __MAC_OS_X_VERSION_* SDK/DT macros are only
available when targeting macOS, while <AvailabilityMacros.h>
MAC_OS_X_VERSION_* SDK/DT macros are available on all Apple platforms,
which may be a source of confusion. (<Availability.h> __MAC_* macros
do remain available on all Apple platforms.)
This change was made mostly mechanically by:
sed -i '' -Ee 's/<AvailabilityMacros.h>/<Availability.h>/g' \
$(git grep -E -l '<AvailabilityMacros.h>' |
grep -v AvailabilityMacros.h)
sed -i '' -Ee 's/(MAC_OS_X_VERSION_(MIN_REQUIRED|MAX_ALLOWED))/__\1/g' \
$(git grep -E -l 'MAC_OS_X_VERSION_(MIN_REQUIRED|MAX_ALLOWED)' |
grep -v AvailabilityMacros.h)
sed -i '' -Ee 's/(MAC_OS_X_VERSION_(10_[0-9]+))/__MAC_\2/g' \
$(git grep -E -l 'MAC_OS_X_VERSION_(10_[0-9]+)' |
grep -v AvailabilityMacros.h)
Bug: crashpad:347
Change-Id: Ibdcd7a6215a82f7060b7b67d98691f88454085fc
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2382421
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This #include was omitted from 0c3f50c8e14a.
Bug: crashpad:345
Change-Id: Ic3392bfc611ba847e50743ef7129263bf69c81e2
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2288393
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This gets all tests building. They don’t all pass, and there aren’t any
guarantees that anything else works yet, either.
This is mostly a lot of CPU context shuffling.
Bug: crashpad:345
Change-Id: I684017a5816f44917392964d7fb6d08083770b38
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2285962
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This gets all production code for Chrome building, excluding tests.
There aren’t any guarantees that anything works yet.
This is mostly a lot of CPU context shuffling.
In contrast to macOS on x86, there’s no need to support 32-bit arm on
macOS, because this new platform is 64-bit-only from its inception.
Bug: crashpad:345
Change-Id: I187239b6a969005a3458af7fe30c44147a57f95f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2285961
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
GN recently added support for Apple frameworks to link, rather than
overloading the libs lists. This pulls .frameworks out of the libs
lists, so that GN can stop supporting .frameworks in libs in the
future.
Roll mini_chromium ae14a14ab..cd26c5101
$ git log ae14a14ab..cd26c5101 --date=short --no-merges --format='%ad %ae %s'
2020-07-01 rsesek@chromium.org apple: Expand {{framework_dirs}} and {{frameworks}} in the toolchain.
Bug: chromium:1052560
Change-Id: Id70bceb57174a52c6f4a7f72378a3ee0ae89f64d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2278022
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
The incorrect macro was used in f4b906c79c02 (at my request when I was
reviewing from a phone).
The Windows and Fuchsia builds are broken, so…
TBR: epastor@google.com
Change-Id: I8aebbbc24db261f3c3377210bb1c477132964828
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2270920
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Implemented the AddAttachment(), InitializeAttachments(), CleanDatabase() functions
on Windows.
Added attachment=FILE_NAME option to the handler, and
"attachments" argument for Windows and Linux to StartHandler function.
On crash it will create the corresponding attachments in the database
and copy content of the specified files to the database.
Bug: b/157144387
Change-Id: Ia238de39028e07112a7b971b5b7d5e71a5864f53
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2248099
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
If the file just needs the CHECK/CHECK_OP/NOTREACHED
macros, use the appropriate header for that instead.
Or if logging.h is not needed at all, remove it.
This is both a nice cleanup (logging.h is a big header,
and including it unnecessarily has compile-time costs),
and part of the final step towards making logging.h no
longer include check.h and the others.
Bug: chromium:1031540
Change-Id: Ia46806bd95fe498bcf3cf6d2c13ffa4081678043
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2255361
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Hans Wennborg <hans@chromium.org>
Add direct includes for things provided transitively by logging.h
(or by other headers including logging.h).
This is in preparation for cleaning up unnecessary includes of
logging.h in header files (so if something depends on logging.h,
it needs include it explicitly), and for when Chromium's logging.h
no longer includes check.h, check_op.h, and notreached.h.
DEPS is also updated to roll mini_chromium to ae14a14ab4 which
includes these new header files.
Bug: chromium:1031540
Change-Id: I36f646d0a93854989dc602d0dc7139dd7a7b8621
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2250251
Commit-Queue: Hans Wennborg <hans@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
There are a few files in the tree which use various functions defined
in string.h (memcpy, strlen, strnlen, memmove, etc), but never include
the necessary header file. After I've recently updated one of my systems
to a newer glibc version (2.30) this code failed to build. Adding the
missing includes fixes the problem.
The undeclared functions for each file are:
* simple_address_range_bag.h - memcpy
* http_multipart_builder.cc - strlen
* minidump_context_converter.cc - memcpy
* ptrace_client.cc - strlen
* http_transport_socket.cc - strncpy, strlen, memcpy
* process_memory.cc - memchr
* log_output_stream.cc - strlen
Change-Id: I3108c36b8a6927ac11f6839606cb495926fa9e4e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2207139
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
I’m most interested in picking up 1b3eb6ef3462, “Explicitly define copy
constructors used in googletest tests.”
This also reorganizes files and rewrites text to refer to this project
as Google Test and googletest (and Google Mock and googlemock), as it
prefers to be known. Some filenames are left at gtest_* following the
precedent set by gtest itself. For example, #include "gtest/gtest.h" is
still used, so #include "test/gtest_death.h" is retained too.
gtest_all_test OutputFileHelpersTest.GetCurrentExecutableName hard-codes
the expected executable name as gtest_all_test among other options that
do not include googletest_all_test, so test executables retain their
names as well.
fb19f57880f6 Add GTEST_BRIEF option
3549237957a1 Ensure that gtest/gmock pkgconfig requirements specify
version
189299e957bb Merge branch 'master' into quiet-flag
5504ded3ab5c Fix a typo in .travis.yml
6ed4e7168f54 Replace the last instance of `throw()` with `noexcept`. NFC
879fd9b45299 Remove duplicate codes existed in get-nprocessors.sh
644f3a992c28 gtest-unittest-api_test - fix warning in clang build
0b6d567619fe Remove redundant .c_str()
be3ac45cf673 fix signed/unsigned comparison issue (on OpenBSD)
b51a49e0cb82 Merge pull request #2773 from Quuxplusone:replace-noexcept
c2032090f373 Merge pull request #2772 from Quuxplusone:travis
4fe5ac53337e Merge pull request #2756 from Conan-Kudo:fix-pkgconfig-reqs
373d72b6986f Googletest export
4c8e6a9fe1c8 Merge pull request #2810 from ptahmose:master
71d5df6c6b67 Merge pull request #2802 from e-i-n-s:fix_clang_warning
dcc92d0ab6c4 Merge pull request #2805 from pepsiman:patch-1
4f002f1e236c VariadicMatcher needs a non-defaulted move constructor for
compile-time performance
9d580ea80592 Enable protobuf printing for open-source proto messages
766ac2e1a413 Remove all uses of GTEST_DISALLOW_{MOVE_,}ASSIGN_
11b3cec177b1 Fix a -Wdeprecated warning
01c0ff5e2373 Fix a -Wdeprecated warning
c7d8ec72cc4b Fix a -Wdeprecated warning
1b066f4edfd5 Add -Wdeprecated to the build configuration
4bab55dc54b4 Removed a typo in README.md
a67701056425 Googletest export
fb5d9b66c5b0 Googletest export
1b3eb6ef3462 Googletest export
b0e53e2d64db Merge pull request #2797 from Jyun-Neng:master
d7ca9af0049e Googletest export
955552518b4e Googletest export
ef25d27d4604 Merge pull request #2815 from Quuxplusone:simple
129329787429 Googletest export
b99b421d8d68 Merge pull request #2818 from inazarenko:master
472cd8fd8b1c Merge pull request #2818 from inazarenko:master
3cfb4117f7e5 Googletest export
0eea2e9fc634 Googletest export
a9f6c1ed1401 Googletest export
1a9c3e441407 Merge pull request #2830 from keshavgbpecdelhi:patch-1
e589a3371705 Merge pull request #2751 from calumr:quiet-flag
Change-Id: Id788a27aa884ef68a21bae6c178cd456f5f6f2b0
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2186009
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
% yapf --in-place $(git ls-files **/*.py)
% yapf --version
yapf 0.30.0
Note that this is not using the “chromium” yapf style because Chromium
is moving to PEP-8.
https://groups.google.com/a/chromium.org/d/topic/chromium-dev/RcJgJdkNIdg
yapf 0.30.0 no longer recognizes “chromium” as a style option.
22ef70f3c4
Since this is a mass reformatting, it might as well move things all the
way into the future all at once.
This uses the “google” style, which is a superset of “pep8”.
Change-Id: Ifa37371079ea1859e4afe8e31d2eef2cfd7af384
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2165637
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
I did a mass conversion in 5d74f120fc57 (October 2014) but these few
must have shown up after.
This excludes code in third_party.
Change-Id: I61cb0273804c0424904a516ed5ab735548b6b9cb
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2166725
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Add Mach exception server and fill out exceptions snapshot.
Note that:
- The 'capture' portion of this CL will be moved out of the snapshot
interface and into a separate in-process dump to disk location.
- All of the pointer dereferences need to be wrapped in vm_read.
- The read-fast-and-dump logic in exception_snapshot will end up in a
different file completely, but until we pick a
serialization/deserialization method, keep it as-is.
Bug: crashpad:31
Change-Id: I44203aa44036a341d6b4517fde7ab0cb9d7e94d7
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2160122
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This was previously used, but is no longer required. Delete the one
remaining include at the build rules.
Change-Id: If5083a4fb8a5562d3e40149976bd27fcec0fd302
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2165635
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Francois Rousseau <frousseau@google.com>
Commit-Queue: Scott Graham <scottmg@chromium.org>
This updates the way that the .defs files added in 1bfd7d06ed60 are
treated, by putting them in compat/ios, using compat as intended. The
.defs files in compat forward, via #include, to the ones in
third_party/xnu. Additionally, compat/mac is enabled for iOS, as
everything in compat/mac is sensible on iOS, and will have no effect
when rendered unnecessary by the iOS SDK.
This also changes util:mig_output to a static_library instead of a
source_set. I don’t think there was any reason for it to have been a
source_set to begin with. static_library is preferred for nearly
everything.
Bug: crashpad:31
Change-Id: I7c468d6d6785bf2bc825d45831ebb81e1c9ddfbc
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2160310
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This makes UniversalMachExcServer available on iOS.
UniversalMachExcServer is the foundation for a Mach exc and mach_exc
server.
Some code in UniversalMachExcServer needs to be evaluated to ensure that
portions that run in the same process that has sustained the exception
are safe to do so at that time. For example,
SimplifiedExcServer<ExcTraits>::Interface instantiates and appends to a
std::vector<>, which is generally unsafe in this context. However, that
code responds to exc requests. The mach_exc equivalent,
SimplifiedMachExcServer<MachExcTraits>::Interface, does not use a vector
at all.
This also enables support code in the form of CompositeMachMessageServer
and UniversalExceptionRaise, all of the tests for
CompositeMachMessageServer, and most of the test for
exc_server_variants.cc. The multiprocess-based exc_server_variants tests
remain disabled on iOS.
Bug: crashpad:31
Change-Id: I838ed770a33ca29c37383c32245eb340fb3ad2fb
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2159287
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
mig was being invoked without any -arch argument, causing it to assume
the build system’s native architecture, which would be x86_64. This is
not correct for iOS device builds, which use arm64. The -arch argument
must be plumbed to mig for correct behavior.
When building for iOS, mig was being invoked without any -isysroot
argument, causing it to use the root for the build system, which runs
macOS and not iOS. The macOS SDK doesn’t include the ARM definitions
needed for iOS device builds.
<mach/exc.defs> and <mach/mach_exc.defs> depend on a small number of
other .defs files to provide definitions of standard types. All .defs
files are absent from the iOS SDK. These .defs files are borrowed from
xnu and placed in third_party/xnu. An additional --include argument is
added to allow mig to locate these files.
Bug: crashpad:31
Change-Id: I27154310352939ebe2fb6329bbbfda701c369289
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2159291
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This updates (and corrects) 8dbbaff2e1a5, which added exc.defs, by
adding mach_exc.defs too.
The difference betwen the exc and mach_exc subsystems is that the |code|
parameter is int[] in exc and int64_t[] in mach_exc. Many exceptions
carry the exception address in code[1], and a 32-bit int results in the
exception address being truncated in exc. No information is lost in
mach_exc, where a 64-bit int64_t is used.
In 8dbbaff2e1a5, I misremembered the type of the |code| parameter as a
type derived from uintptr_t, such as vm_address_t, an integer as wide as
a pointer. I was wrong, and mach_exc is necessary. I also noted that
Apple normally forbids mach_-prefixed interfaces in favor of the
prefix-less ones for the reasons I mentioned, and that, all else being
equal, it was desirable to adhere to the spirit of that convention.
Because neither exc nor mach_exc are available in the SDK, it’s moot
from a technical perspective, as we need to provide our own stubs either
way.
Bug: crashpad:31
Change-Id: Ied1be470e653b2bead1a283cb8b9283d210c328d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2159286
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This enables the following code in util/mach on iOS:
- exception_behaviors.{cc,h}
- exception_ports.{cc,h}
- mach_message.{cc,h}
- mach_message_server.{cc,h}
Only the ExceptionBehaviors and MachMessage tests are built, because the
other two are tested by multiprocess tests that won’t run on iOS.
The AuditPIDFromMachMessageTrailer function from mach_message.h is
excluded on iOS because it relies on <bsm/libbsm.h>, which is broken on
iOS: it depends on <bsm/audit_record.h>, which is missing from the SDK.
Additionally, the BSM function that Crashpad uses, audit_token_to_au32,
is marked as unavailable on iOS. Crashpad uses it on macOS to
authenticate Mach messages sent by other processes, but this is moot on
iOS.
Bug: crashpad:31
Change-Id: I5ebc4b80543989b9cd0b85b82eb4b3ff98c44e6c
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2155086
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
The iOS SDK doesn’t include a copy of <mach/exc.defs>. It only provides
<mach/exc.h>, which is just the user-side header. To obtain declarations
and implementations of the server-side stubs, a current copy of
<mach/exc.defs> is added to third_party, and the mig action in util is
updated to use it on iOS.
The three other mig subsystems that Crashpad uses are not brought to
iOS:
- mach_exc is identical to exc except it always uses 64-bit quantities
for addresses in place of exc’s use of quantiies sized for native
pointers. Because all iOS work is limited to a single process, there
is no need to consider cross-process operation with variable bitness,
so mach_exc is unnecessary. We’re also only targeting 64-bit for iOS,
so exc will always suffice. This follows the spirit of other
mach_-prefixed routines on iOS, where Apple forbids mach_vm_read to
user applications but permits vm_read.
- notify is primarily used on macOS in the Crashpad handler process to
receive a no-senders notification, which is used to trigger handler
shutdown when it has no more clients. This is not believed to be
useful to Crashpad on iOS, which is restricted to single-process
operation.
- child_port is a Crashpad-specific subsystem used to pass Mach rights
between processes, but is similarly useless when restricted to
single-process operation as on iOS.
Bug: crashpad:31
Change-Id: Id4cb3cdd529814438d378c20702c82c1e89dd2be
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2154530
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
mach_extensions is sensible on iOS, but bootstrap is not available
outside of macOS. To allow mach_extensions to be used cleanly on iOS,
the bootstrap code is moved into its own macOS-specific file.
Bug: crashpad:31
Change-Id: I7bf9d5194253b563954a1e55fbf67a16f686e8ff
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2154529
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This builds some code in the util and test libraries on iOS that was
previously excluded. It also enables tests for this code, and other
tests that it was possible to enable either previously or as a result of
this change.
Previously, crashpad_util_test ran 178 tests from 46 test suites, and
crashpad_test_test ran 2 tests from 2 test suites. Now,
crashpad_util_test runs 284 tests from 62 test suites, and
crashpad_test_test runs 6 tests from 4 test suites.
The related .gn files also suffered through a slight cleanup.
Bug: crashpad:31
Change-Id: I84cdda5631f0ea4888ada902a8462776ac46fd2a
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2154526
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
When code raises an Objective-C exception, unwind the stack looking for
any exception handlers. If an exception handler is encountered, test to
see if it is a function known to be a catch-and-rethrow 'sinkhole'
exception handler. Various routines in UIKit and elsewhere do this, and
they obscure the exception stack, since the original throw location is
no longer present on the stack (just the re-throw) when Crashpad
captures the crash report. In the case of sinkholes, trigger an
immediate exception to capture the original stack.
The is an improvement over the alternative,
NSSetUncaughtExceptionHandler, which passes along the stack frames, but
not the stack memory contents and full exception context itself.
The details of what happens after a fatal exception is triggered are
unresolved in this CL. For now, simply call std::terminate.
This code was inspired by chromium/src/chrome/browser/mac/
exception_processor.mm.
Bug: crashpad:31
Change-Id: Ieebc6476a0507c466c8219c10f790ec0a624e58c
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2125254
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Bionic installs signal handlers which request crash
dumps from Android's debuggerd, but there are errors
in how signals which aren't automatically re-raised
are handled on Marshmallow (API 23).
Before requesting a dump, Bionic acquires a lock to
communicate with debuggerd and expecting imminent
death, never releases it.
While handling the dump request, debuggerd allows
the dying process to continue before
ptrace-detaching it. So, when Bionic manually
re-raises a signal, it is intercepted by debuggerd
and the dying process is allowed to live.
Bionic restores SIG_DFL for the signal it's just
handled, but if a different crash signal is later
recieved, Bionic attempts to reacquire the lock to
communicate with debuggerd and blocks forever.
Disable Bionic's signal handlers for these signals
on Marshmallow.
Bug: chromium:1050178
Change-Id: Ia1fc5a24161a95931684d092ba8fee2f0dfbbdbb
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2134513
Reviewed-by: Mark Mentovai <mark@chromium.org>
Fixes the chromium presubmit error for UTF8String:
The use of -[NSString UTF8String] is dangerous as it can return null
even if |canBeConvertedToEncoding:NSUTF8StringEncoding| returns YES.
Please use |SysNSStringToUTF8| instead.
Bug: crashpad:31
Change-Id: Iaf939012ea9d342f6a01af58119cef962319aefe
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2119613
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Gather most of the necessary information for the system snapshot.
Note that:
- The 'capture' portion of this CL will be moved out of the snapshot
interface and into a separate in-process dump to disk location.
- All of the pointer dereferences need to be wrapped in vm_read.
- The read-fast-and-dump logic in thread_snapshot may end up in a
different file completely, but until we pick a
serialization/deserialization method, keep it as-is.
Bug: crashpad:31
Change-Id: Iac82491fdb4a823163f02149f52a1e18e26fa9de
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2090173
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This may help us debug some issues where the thread is failing to
suspend.
Bug: b/151318587
Change-Id: I0d2d539f769ebb1cdd71606e1d23d8fa66673879
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2103411
Commit-Queue: John Bauman <jbauman@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
These should be the remaining instances of UB errors we see.
Bug: fuchsia:46805
Change-Id: Id8285386fd6cb52518f6076ddb79ac60025f9f87
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2067754
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>
First steps at bringing up the crashpad_client on iOS. Also updates
the XCUITest to trigger various crashes, with some swizzling
necessary to allow crashes.
Change-Id: I87dd36bed1c052b509d14bfa29679ed81e58a377
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2039470
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Rohit Rao <rohitrao@chromium.org>
lld wants to remove bl/blx substitution for non-function symbols
(https://reviews.llvm.org/D73542). GNU ld apparently already doesn't
do it.
Since _ZN8crashpad14CaptureContextEP10ucontext_t wasn't marked as a function,
chromium's thumb code would then branch without mode transition into
crashpads non-thumb assembly (in arm32).
So mark the symbol as function, so that things work even if that patch
relands. This should also make things work with GNU ld, though I haven't
verified that it was broken before and works now.
I also did this for aarch64 since it seems like The Right Thing To Do
(assuming the assembler accepts it, which I also haven't checked --
the CQ will hopefully check that).
Bug: chromium:1049649
Change-Id: I3452c16f0d52a2dc0397fd3d60d06b5c39a4b524
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2044144
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
- Add option to log minidump in handler_main, also add option to
disable to dump minidump and generate report.
- Implement log minidump in CrashReportExceptionHandler.
Bug: crashpad:308
Change-Id: I8d2f7e118912011a8416f1ec36c9ee9d561d06e6
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1995825
Commit-Queue: Tao Bai <michaelbai@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
- This tool could compress/encode or decode/decompress the minidump
log file, will be used by script to symbolize the crash.
- Added FileOutputStream and FileEncoder.
Bug: crashpad:308
Change-Id: I15c3e4908882a09983ec81a90e38249967c29fc4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1968059
Commit-Queue: Tao Bai <michaelbai@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Emit the received data to Android logcat in Android, and noop for
other platforms.
Bug: crashpad:308
Change-Id: I6e46e2fa8bd61f93f614ad0bfb6441a79139b04b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1958711
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
This CL modifies the creation of the Named Pipe Security Descriptor to
allow access from AppContainer processes. The DACL only allows access for
the current user and SYSTEM which matches up with the auto-assigned DACL
used previously (the read-only logon SID ACE has been removed). As this
new code uses APIs from ADVAPI32 a check is made to ensure it's not being
called while the loader lock is held to avoid hitting previous similar
issues.
Bug: crashpad: 318
Change-Id: I3f9cf5c788dbadacad21c8a2d57a0188f690ac32
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1955982
Commit-Queue: James Forshaw <forshaw@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
"\r\n" was used instead of "\n" on four new files.
No other "\r" appears in any text file, repository-wide.
Bug: crashpad:316
Change-Id: I94f5d20cd2498e76efdee6062382669362e6e53d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1954713
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This CL adds code to check if the current thread holds the DLL loader
lock. This code can be used to enforce the requirement that certain
parts of crashpad, such as process creation are not done during calls
to DllMain which can lead to deadlocks and crashes. Only one check is
current enforced, in client process creation, and only in debug builds.
Bug: crashpad: 316
Change-Id: I5757a264bbf28ce2ab88a0cd7ac9481e46428c17
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1945993
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: James Forshaw <forshaw@chromium.org>
