983 Commits

Author SHA1 Message Date
Peter Kasting
458bdec985 Don't redefine macros from base/compiler_specific.h.
`DISABLE_CFI_ICALL` is already defined in that header; use it.

This is both simpler and less likely to trigger macro redefinition
errors.

Bug: none
Change-Id: I3ecfe9b6dc4ac42c6a69b3fd9c6d2c68fe8e62a2
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5805458
Reviewed-by: Mark Mentovai <mark@chromium.org>
2024-08-22 02:47:50 +00:00
Peter Boström
6265674c98 Migrate to NOTREACHED()
This was tested locally by adding "-Wunreachable-code-aggressive" after
making NOTREACHED() [[noreturn]] in mini_chromium and then getting that
to compile.

Bug: chromium:40580068
Change-Id: I7ec1c72be1d73436d128660a621e9060eaebaee8
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5780891
Reviewed-by: Mark Mentovai <mark@chromium.org>
2024-08-14 03:11:45 +00:00
Peter Boström
cc54fcc7f5 Fix trailing NOTREACHED_NORETURN()
This alias is not present in mini_chromium and disappearing from
chromium.

Bug: chromium:40580068
Change-Id: Ib6218d96df3bb8b2fe46af08ac51d6362c7db64e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5783604
Reviewed-by: Mark Mentovai <mark@chromium.org>
2024-08-14 01:57:47 +00:00
Mark Mentovai
d380daf704 Update cpp-httplib to 6a848b1a1643
Most significantly, this includes:

6a848b1a1643 Require a minimum of TLS 1.2 (#1889)

Although Crashpad only uses cpp-httplib in tests, there’s no reason to
taunt fate with this tempting juicy morsel. TLS 1.1 is deprecated
(https://datatracker.ietf.org/doc/html/rfc8996, 2021-03).

This includes a change to util/net/http_transport_test_server.cc to
ensure that the test server, which runs in a child process, continues to
return the full multipart request body as it had in the past. Since
cpp-httplib 7e420aeed361 introduced multipart handling, the raw
multipart wrapper no longer appears in Request::body, but is instead
made available at Request::files. With this change, the test server will
reconstitute the original request body to match the test’s expectations.
Note that this isn’t the only way to serialize the request to be
conveyed back to the test, but it’s the most expedient because it’s what
the test already expects, and because the existing framing already takes
the form of the raw HTTP request.

Change-Id: Ia4adaedff0873976f7cc5be138d78f931165fe4e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5753782
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2024-07-31 17:46:48 +00:00
Daniel Cheng
aef7de4e93 [MSan] "Fix" use-after-dtor in InitializationState.InitializationState
Since the test is specifically trying to exercise UB by testing the
state of an object it is already destroyed, unpoison the memory to
suppress MSan errors.

Bug: 40222690
Change-Id: I840e944f5e8b39668ac05d8d641fdd5f2e3db5ac
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5716150
Reviewed-by: Mark Mentovai <mark@chromium.org>
2024-07-17 17:08:24 +00:00
Justin Cohen
0bebda66a8 ios: Remove duplicate implementations of ReadStringSysctlByName
Bug: crashpad: 480
Change-Id: Ie37c557d2170f6d96968ec4922ec52bfc6ad8136
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5580854
Reviewed-by: Mark Mentovai <mark@chromium.org>
2024-06-04 18:25:16 +00:00
Peter Boström
6af42bc0b2 Use NOTREACHED_IN_MIGRATION()
This was generated by replacing "  NOTREACHED()" with
"  NOTREACHED_IN_MIGRATION()" and running git cl format.

This prepares for making NOTREACHED() [[noreturn]] alongside
NotReachedIsFatal migration of existing inventory.

Bug: chromium:40580068
Change-Id: Idb68e2fc8adba180350b0595fd494cf0f206bded
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5548246
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
2024-05-17 16:30:52 +00:00
Ben Hamilton
d588c50b16 [ScopedSpinGuard] Use std::atomic::compare_exchange_strong() for spinlock
Previously, ScopedSpinGuard used std::atomic::compare_exchange_weak()
in a loop to implement a spinlock. After looping for the specified
number of nanoseconds, it would give up and return an error.

A few bugs have come in on ARM platforms (https://crbug.com/340980960,
http://b/296082201) which indicate that this can fail even in
single-threaded cases where nothing else has the spinlock.

From https://cbloomrants.blogspot.com/2011/07/07-14-11-compareexchangestrong-vs.html :

> compare_exchange_weak exists for LL-SC (load linked/store
> conditional) type architectures (Power, ARM, basically everything
> except x86), because on them compare_exchange_strong must be
> implemented as a loop, while compare_exchange_weak can be
> non-looping.

and:

https://en.cppreference.com/w/cpp/atomic/atomic/compare_exchange#Notes

> compare_exchange_weak is allowed to fail spuriously, that is, acts
> as if *this != expected even if they are equal. When a
> compare-and-exchange is in a loop, compare_exchange_weak will yield
> better performance on some platforms.
>
> When compare_exchange_weak would require a loop and
> compare_exchange_strong would not, compare_exchange_strong is
> preferable [...]

My conclusion is that this logic needs to use
`compare_exchange_strong` to avoid spurious failures on ARM in the
common case when there's no other thread holding the spinlock.

Change-Id: I2a08031db6b219d7d14a5cd02b3634985f81ab06

Bug: b:340980960
Change-Id: I2a08031db6b219d7d14a5cd02b3634985f81ab06
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5545257
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Ben Hamilton <benhamilton@google.com>
2024-05-16 22:16:59 +00:00
Arthur Wang
981d4189aa Replace std::unique_ptr<T> with HeapArray
Bug: crashpad: 326459659,326458942,326459376,326459390,326459417,326458979,326459333,326459016,326458338,326458738,326459156,326459512,326458694
Change-Id: I04724530cbef50a8d3c18f306d16c0bbf3b0815b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5512394
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Arthur Wang <wuwang@chromium.org>
2024-05-09 22:16:58 +00:00
danakj
5c09c9a701 Include build_config.h before checking COMPILER_MSVC
This is caught by chromium presubmit when rolling crashpad.

R=mark@chromium.org

Change-Id: Ida9ff07e7b2bd27808c092afbc5a1345fa29a4f3
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5515300
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
2024-05-06 14:47:42 +00:00
danakj
84c87739e8 Use the span version of RandBytes
Some unique_ptr<T[]> are also changed to HeapArray in order to
facilitate the change.

Bug: chromuim: 40284755
Change-Id: I30b9d55ff81f23c63ad4958786740f67ee612024
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5512569
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
2024-05-06 14:12:00 +00:00
Andrew Williams
bff9873242 Make NTSTATUS_LOG less likely to change ::GetLastError() value
This better ensures that using code like
`NTSTATUS_LOG(ERROR, status) << ::GetLastError()` would print the
intended value. This isn't done today by the code AFAICT, but
making this change primarily for consistency with the change to
Chromium logging in
https://chromium-review.googlesource.com/c/chromium/src/+/5443628

Bug: chromium:333445539
Change-Id: I49f16b9ed78d98a0b2f178f58465002aad757ae5
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5474027
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Andrew Williams <awillia@chromium.org>
2024-05-03 23:13:34 +00:00
Andrew Williams
da189353b6 Replace std::is_pod usage
Replacing std::is_pod usage as per the following compilation error:
```
../../util/misc/uuid.cc:44:20: error: 'is_pod<crashpad::UUID>' is deprecated: use 'is_standard_layout && is_trivial' instead [-Werror,-Wdeprecated-declarations]
static_assert(std::is_pod<UUID>::value, "UUID must be POD");
                   ^
/usr/bin/../lib/gcc/x86_64-linux-gnu/13/../../../../include/c++/13/type_traits:818:5: note: 'is_pod<crashpad::UUID>' has been explicitly marked deprecated here
    _GLIBCXX20_DEPRECATED_SUGGEST("is_standard_layout && is_trivial")

```

Bug: None
Change-Id: I1d61ee12261877f7f1f84f0ea15d262d22959766
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5472885
Commit-Queue: Andrew Williams <awillia@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2024-05-03 21:22:37 +00:00
Arthur Wang
76badd4c20 Replace std::unique_ptr<T[]> with HeapArray in process_info.cc and
process_info_test.cc

Bug: crashpad: 326459035,326458915,326459055
Change-Id: Ifb91297b6097aa81a9d5c883b2c284e9fdd512a8
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5463361
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Arthur Wang <wuwang@chromium.org>
2024-05-02 15:53:17 +00:00
danakj
7e0af1d4d4 Use byte conversions over the byte swap functions
base/sys_byteorder.h is going away. Instead, use the byte conversions
in base::numerics to convert from a byte array in big endian to an
integer. This avoids putting big endian data into integer types at all.

mini_chromium was rolled and crashpad updated to work with newer
mac/windows toolchains in order to support C++20 in
f9cee5c147db30dc8fa1a048aabd165965b5cb60.

Bug: 40284755
Change-Id: If690847b7aa54b0216e73ec297eae3d0bca2fa57
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5402184
Commit-Queue: danakj <danakj@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2024-04-11 17:31:35 +00:00
André Kempe
6bf5e1b5c5 Fix invalid check for valid key of Pointer Authentication
Arm's Pointer Authentication uses two keys for signing pointers, A-key
and B-key. Although by default Clang uses the A-key if PAC support is
enabled at compile time, this behaviour might be overridden via compiler
command line.

This CL fixes the check for the B-key being enabled. The key that shall
be used for Pointer Authentication is denoted by bits 0 (A-key) or
1 (B-key) of __ARM_FEATURE_PAC_DEFAULT. Hence, the previous way of
checking by using bits 0 and 2 does not correctly identify the B-key.

Bug: 40608466
Change-Id: Ib2f226baa12a7145fa0b6e486e49d36e6b0a3cd7
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5341090
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2024-03-15 14:10:46 +00:00
Peter Boström
bc4fd34fe2 Log argv[0] for failing spawns
This adds argv[0] for PLOG(FATAL) calls following a failed posix_spawn
or execve call to make logs more useful.

Bug: chromium:324982367
Change-Id: I179928ec9f791ce5b365b3444aa3bb667f4ec4b3
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5315332
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
2024-02-22 19:28:55 +00:00
Sylvain Defresne
5075fb617a Honor ios_is_app_extension chromium build flag
If building for chromium, honor the ios_is_app_extension gn variable
that is set per toolchain. When it is defined, the code is built for
an application extension (i.e. -fapplication-extension is passed to
the compiler).

Use CRASHPAD_IS_IOS_APP_EXTENSION build guard to not compile code
that use unavailable extension when ios_is_app_extension is set. If
the variable is not set, then check at runtime whether the API can
be used or not (if the crashpad client uses the same toolchain for
the main application and its application extensions).

This is required to pass -fapplication-extension to the compiler when
building application extensions (which allow catching API that is not
available to application extensions).

Bug: 40120082
Change-Id: I28d545fcfd0f8662430c40ff202b79b0c2b2ff8b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5286216
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
2024-02-12 15:43:24 +00:00
danakj
a02e4935bd Avoid assuming string_view iterators are char*
This assumption is non-portable and prevents Chromium from using
bounded iterators in libc++.

Bug: chromium: 1519908
Change-Id: Iafe6639ef3bc896d6fa4fb3ceb7ac0b546363017
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5237292
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
2024-01-26 14:03:07 +00:00
Justin Cohen
30b2f4ba38 ios: Add crashpad_uptime_ns crash key to iOS reports.
This CL introduces a new crash key 'crashpad_uptime_ns' that records the
number of nanoseconds between when Crashpad was initialized and when a
snapshot is generated.

Crashpad minidumps record the MDRawMiscInfo process_create_time using a
sysctl(KERN_PROC).kp_proc.p_starttime. This time is used to display the
'uptime' of a process.  However, iOS 15 and later has a feature that
'prewarms' the app to reduce the amount of time the user waits before
the app is usable. This mean crashes that may happen immediately on
startup would appear to happen minutes or hours after process creation
time.

While initial implementations of prewarming would include some parts of
main, since iOS16 prewarming is complete before main, and therefore
before Crashpad is typically initialized.

Bug: crashpad:472
Change-Id: Iff960e37ae40121bd5927d319a2767d1cafce846
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5171091
Reviewed-by: Ben Hamilton <benhamilton@google.com>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2024-01-11 16:42:54 +00:00
Peter Boström
98d0d86e76 Add [[noreturn]] version of NtstatusLogMessage
This will be used by base/logging.h in chromium to make sure that
LOG(FATAL) variants never return and are properly understood as
[[noreturn]] by the compiler.

Once that's landed in chromium it'll be up/downstreamed into
mini_chromium as well.

Bug: chromium:1409729
Change-Id: I75340643fe075475f997bbc45250fa10df63c9fa
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5185996
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Boström <pbos@chromium.org>
2024-01-11 16:15:20 +00:00
David Fang
2905784a7d [build] Re-enable action tracing
Avoid unconditionally running mig in incremental builds,
and causing un-necessary re-build of downstream targets.

Bug: b/42147841
Bug: b/42084680
Change-Id: I961189870aec8f0b1a1ced22105730218664e109
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5171755
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: David Fang <fangism@google.com>
2024-01-06 04:24:21 +00:00
Avi Drissman
9f896f2581 Qualify bit_cast with base::
The real Chromium base/bit_cast.h is in the base namespace.
mini_chromium's version was just changed to be in the base namespace
as well. Roll to the latest mini_chromium and scope all calls to
bit_cast.

Bug: chromium:1506769
Change-Id: I7b25ee512f67694ef6ed3d0250e4f6a6db151eb3
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5116880
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
2023-12-12 22:52:47 +00:00
Ben Hamilton
337b4f7971 [mac] mach_absolute_time() -> clock_gettime_nsec_np(CLOCK_UPTIME_RAW)
https://developer.apple.com/documentation/kernel/1462446-mach_absolute_time

> Prefer to use the equivalent clock_gettime_nsec_np(CLOCK_UPTIME_RAW) in nanoseconds.

The two are equivalent:

c5a3293354/gen/clock_gettime.c (L118)

Change-Id: I1c7a08d821d1840b74fc5eaa0e9ceca2ade5bbfc
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5085307
Commit-Queue: Ben Hamilton <benhamilton@google.com>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2023-12-12 18:08:21 +00:00
Lei Zhang
5613499bbd Replace base::WStringPiece with std::string_view
Bug: chromium:691162
Change-Id: I2d34bcfd3b97d59d1811183d62b893b875b08bb4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5010942
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
2023-11-07 21:04:05 +00:00
Lei Zhang
1675ce7c58 Add missing base/check.h includes
Do not rely on base/logging.h to provide it.

Change-Id: I8b7d733bcf66abe9b46eabd3703b7ed549d02db7
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/5007844
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2023-11-06 22:00:17 +00:00
David Benjamin
41f6ad560f Fix crashpad tests under UBSan
These are slightly frustrating. First, when a struct is packed, some of
its fields may be underaligned. This is fine for direct access
(foo.bar), but if one takes the address if the field, this creates an
unaligned pointer. Dereferencing that pointer is then UB. (I'm not sure
if creating that pointer is UB.)

Crashpad seemingly doesn't do this, but it uses EXPECT_EQ from GTest.
EXPECT_EQ seems to internally take pointers to its arguments. I'm
guessing it binds them by const reference. This then trips UBSan. To
avoid this, we can copy the value into a temporary before passing to
EXPECT_EQ.

Second, the test to divide by 0 to trigger SIGFPE is undefined behavior.
The compiler is not actually obligated to trip SIGFPE. UBSan prints one
of its errors instead. Instead, since this file is only built on POSIX
anyway, use GCC inline assembly to do the division. That one is
well-defined.

Finally, casting a string to uint32_t* is undefined both by alignment
and by strict aliasing (although Chromium doesn't enable the latter).
Instead, type-punning should be done with memcpy.

Bug: chromium:1394755
Change-Id: I79108773a04ac26f5189e7b88a0acbf62eb4401d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4985905
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: David Benjamin <davidben@chromium.org>
2023-10-30 19:31:22 +00:00
Avi Drissman
188ad79298 Roll crashpad/third_party/mini_chromium/mini_chromium/ 707c87bd2..98bbdbe49 (1 commit) + changes
707c87bd25..98bbdbe49f

$ git log 707c87bd2..98bbdbe49 --date=short --no-merges --format='%ad %ae %s'
2023-10-27 avi Update ScopedTypeRef

Created with:
  roll-dep crashpad/third_party/mini_chromium/mini_chromium

---

In addition, change implicit unwrapping of ScopedCFTypeRef to be
explicit.

Bug: chromium:1495438, chromium:1495439
Change-Id: I47dd12f94f71caaad74cf23be9da9d03a59772db
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4984741
Commit-Queue: Avi Drissman <avi@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2023-10-27 16:15:49 +00:00
Eric Astor
59fc31ce00 Update mini_chromium & use its new support for wide streaming in file_path
Fixes a pending issue when we eventually move to C++20.

Original author: Dean Sturtevant

Change-Id: I7bb0648c73df6b6a28a3a4debdb4524d3cd27b38
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4979733
Reviewed-by: Justin Cohen <justincohen@chromium.org>
Commit-Queue: Eric Astor <epastor@google.com>
2023-10-26 22:15:17 +00:00
Lei Zhang
c63c073d27 Do IWYU for check_op.h
Include check_op.h directly, instead of relying on the transitive
include from logging.h. This transitive include does not exist in
Chromium's //base.

Change-Id: I15962a9cdc26ac206032157b8d2659cf263ad695
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4950200
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
2023-10-18 20:01:37 +00:00
Peter Kasting
aef75040fd Use format macros for int64_t instead of hardcoding the format.
Bug: 1371963
Change-Id: I7fa4557472684cdd2b8e0cc977230941f26f1eaa
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4943901
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
2023-10-16 23:52:56 +00:00
Alex Gough
ac0c27a923 Deregister vectored exception handler on client destruction
Some users of crashpad load and unload the dll that hosts
crashpad code. crashpad registers a vectored exception handler
to help collect heap corruption crashes. If the dll is
unloaded this handler might still be called.

This CL adds a scoped handler for such registrations and
uses it on Windows crashpad client. To allow this to
be stored, RegisterHandler() on the client needs to move
onto the client object from being a helper function.

Bug: crashpad:462
Change-Id: I5d77c056e2a9a61ddcfa9d0186ab4bfd85a19bff
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4898263
Reviewed-by: Ben Hamilton <benhamilton@google.com>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Alex Gough <ajgo@chromium.org>
2023-09-28 17:24:39 +00:00
Avi Drissman
a736f7d070 Roll mini_chromium putting /base/apple files into base:🍎:
Bug: chromium:1474628
Change-Id: Ief0efef22759b935045bf0216a313c2de8025403
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4799234
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
2023-08-21 20:35:28 +00:00
Avi Drissman
13e3accfe8 Roll mini_chromium, adjust to more files in base/apple
This rolls mini_chromium to the version that has more files in
base/apple, and adjusts the code to match.

Bug: chromium:1444927
Change-Id: I9642698c8c16151bd0aaca7b46745a59d6e5e6d3
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4791121
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
2023-08-17 15:25:58 +00:00
Avi Drissman
6a9e2e6003 Adjust to movement of base/ files to base/apple
This CL rolls mini_chromium to pick up the move of a bunch of files
to base/apple, and makes changes to adjust.

Bug: chromium:1444927
Change-Id: Ib692e2a1628e2c0c8228795eaecdb7f35b1c09fa
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4786387
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
2023-08-16 21:05:16 +00:00
Thomas Gales
343aa69084 Revert "[fuchsia][mac] Fix build errors"
This reverts commit ca6d64d0ae4905ad7033adab0a28273a0741ee5c.

Reason for revert: The changes did not actually fix the problem once combined with the latest changes from mini_chromium.

Original change's description:
> [fuchsia][mac] Fix build errors
>
> A recent CL [1] broke Fuchsia's Crashpad roller due to duplicate build
> argument declarations. This CL ensures that sysroot.gni is only imported once.
>
> [1] https://chromium-review.googlesource.com/c/chromium/mini_chromium/+/4651973
>
> Fixed: fuchsia:131454
> Change-Id: Idcf6ac65cdffee2c9a9551559a8aab0063044428
> Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4743381
> Reviewed-by: Joshua Peraza <jperaza@chromium.org>
> Commit-Queue: Thomas Gales <tgales@google.com>

Change-Id: Id3dc42484fbd87e242756c8d2889d2e404370ac7
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4753637
Commit-Queue: Thomas Gales <tgales@google.com>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2023-08-04 20:26:15 +00:00
Peter Kasting
419f995aab Ban [w]ctype.h: crashpad
Bug: chromium:1361094
Change-Id: Ia5dacb9038cd74b5d490282a8070fb4579ebe3ae
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4750179
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
2023-08-04 16:50:05 +00:00
Avi Drissman
617429d358 Remove ARC boilerplate in Crashpad
ARC is now enabled by default, so there’s no need to enforce it
against files being put into non-ARC targets.

Bug: chromium:1468376
Change-Id: I58bbb4d1736293a6e9977954ce932dcfe2bafa54
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4750419
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2023-08-03 20:21:42 +00:00
Thomas Gales
ca6d64d0ae [fuchsia][mac] Fix build errors
A recent CL [1] broke Fuchsia's Crashpad roller due to duplicate build
argument declarations. This CL ensures that sysroot.gni is only imported once.

[1] https://chromium-review.googlesource.com/c/chromium/mini_chromium/+/4651973

Fixed: fuchsia:131454
Change-Id: Idcf6ac65cdffee2c9a9551559a8aab0063044428
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4743381
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Thomas Gales <tgales@google.com>
2023-08-02 23:02:59 +00:00
Thomas Gales
8dcf2b216f [fuchsia] Don't build CaptureContext
CaptureContext isn't actually used on Fuchsia and there is a desire to
remove `ucontext_t` from Fuchsia as it isn't a real concept on Fuchsia
and was only added as a placeholder. Moreover, `ucontext_t` won't ever
be added to Fuchsia for RISC-V.

Bug: fuchsia:123052
Fixed: fuchsia:131112
Fixed: fuchsia:127655
Tested: `fx test crashpad` on core.x64 emulator
Tested: `fx test crashpad` on ARM64 device
Tested: `fx shell crasher` @ 16b19a9891978487 on ARM64 device, ran
through Breakpad stackwalker locally as well
Tested: `fx build crashpad_tests` for minimal.riscv64
Change-Id: I4695054426df78a9deff8c9ea9c478b5bf9701b1
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4717085
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Thomas Gales <tgales@google.com>
2023-07-31 20:03:40 +00:00
Avi Drissman
00ce1f9f8f Disable PtraceBroker.SameBitness
Bug: chromium:1459865
Change-Id: I28d5caa739c5b59f4af1f062616443aa16fadfa1
Fixed: chromium:1459862
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4663174
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2023-07-05 15:47:28 +00:00
Avi Drissman
9e37dc46b6 Convert Crashpad to use ARC
See
https://chromium.googlesource.com/chromium/src/+/main/docs/mac/arc.md
for information about this conversion.

Bug: chromium:1280726
Change-Id: I9ed10e9a255eb6b13035b05bcc587c4b6cb7b78e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4651106
Reviewed-by: Mark Mentovai <mmentovai@google.com>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2023-06-30 15:55:24 +00:00
Thomas Gales
2cf938a41d [riscv][fuchsia] Add RISC-V Fuchsia support
Only RV64GC is supported.

RISC-V Fuchsia is not able to serve packages yet so unit testing is not
possible.

Bug: fuchsia:127655

Tested: `crasher` with crashpad added to crashsvc, ran minidump through
Breakpad stackwalker

Change-Id: I1b6d79128759281aee348e333ea15434ab397001
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4602412
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2023-06-12 21:13:43 +00:00
Thomas Gales
4f5dd67229 [riscv] Add RISC-V Linux support
Only RV64GC is supported.

Bug: fuchsia:127655

Tested: `python build/run_tests.py` on RISC-V emulator
Tested: Created minidump via self-induced crash on RISC-V emulator,
ran through Breakpad stackwalker

Change-Id: I713797cd623b0a758269048e01696cbce502ca6c
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4581050
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2023-06-12 21:13:24 +00:00
Eran Rom
788b72f922 Remove Mac OS X Server support
Mac OS X Server has been discontinued as a separate operating system
flavor since 10.6. Current minimal requirements for both Crashpad and
Chromium are above that.

Change-Id: Ia9063be2e55a48e45d9f9974ac2e51bac004f37d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4584570
Reviewed-by: Mark Mentovai <mark@chromium.org>
2023-06-02 19:12:29 +00:00
Stephan Hartmann
0e3758bef6 pac_helper: test for __has_feature macro
__has_feature is a clang extension. GCC errors out on the test.
Define a helper macro to make the code working with other compilers.

Bug: chromium:819294
Change-Id: I359150acd4700e65b4faf5f297b29664c18000d3
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4418706
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Ben Hamilton <benhamilton@google.com>
2023-04-12 17:18:21 +00:00
Justin Cohen
ada8dfa4a7 ios: Always reset IOSIntermediateDumpWriter file descriptor on close.
Always reset the file descriptor to -1, even if FlushWriteBuffer or
RawLoggingCloseFile fails.

Bug: 1431760
Change-Id: I193f526d65f477bba002dd9faf68996020e48a3b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4406657
Reviewed-by: Ben Hamilton <benhamilton@google.com>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2023-04-10 20:44:16 +00:00
avvall
4773a37f0a Crashpad: Adding PAC bit stripping to stack sanitization.
Pointer Authentication works by adding a signature to the top bits of
an instruction or data pointer (only instruction pointers on the stack
are currently signed in Chromium). This can confuse range checks,
because they need to strip the top bits. Masking these bits during sanitization range checks prevents confusion.


Test: Testing was done manually on a device with pointer authentication enabled.
Bug: crashpad:364
Bug: 919548
Change-Id: I2e739cadb2844cfaf73a75596d664135aeb5faac
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4387271
Commit-Queue: Adam Walls <avvall@google.com>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Ben Hamilton <benhamilton@google.com>
2023-04-04 23:59:29 +00:00
Bruce Dawson
fdf7b9e8e9 Skip tests that create symbol links when not allowed
Several tests in filesystem_test.cc create symbol links. The privilege
needed to do this is not enabled on all Windows systems so several of
the tests check for the privilege and are skipped if it is not
available.

However, two tests that created symbol links were not doing this check
and therefore failed on some Windows machines. This corrects those
failures by adding the checks.

Bug: chromium:1418165
Change-Id: I6621796b462b8db02271ad5a05e0c29ee047f648
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4348801
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Bruce Dawson <brucedawson@chromium.org>
2023-03-18 05:36:06 +00:00
David Benjamin
d5b2eea537 Fix another argument-dependent-lookup dependency
Missed this the first time around because it was Windows-only.

Bug: chromium:691162
Change-Id: Ic98a5943957f77fbf17d92a93409eaa35910ae0e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4297482
Commit-Queue: David Benjamin <davidben@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2023-03-15 16:54:50 +00:00
Peter Kasting
322eaa5850 Use thread_local instead of ThreadLocalStorage::Slot.
This also significantly simplifies the implementation, since we don't
really need the ThreadLogMessagesMaster class at all.

Bug: chromium:1416710
Change-Id: I85849230015f901dfbf084d140e639f14cb872a7
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4313281
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
2023-03-07 02:40:30 +00:00
Elly Fong-Jones
04b2ab5bba port: fix non-glibc desktop linux build
This is the only change needed to build crashpad against musl, yay! The
reason this change is needed is that user_vfp is bionic-specific, and
does not exist in glibc, dietlibc, uclibc, or musl.

I have not (yet) tried running the tests against another libc.

Bug: chromium:1380656
Change-Id: I2247352e1611a300dff995156d393508c8257039
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4255370
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Elly Fong-Jones <ellyjones@chromium.org>
2023-02-15 22:41:03 +00:00
Ben Hamilton
28354d11c3 [ios] New class ScopedVMMap
This CL introduces a new class ScopedVMMap, a fork of ScopedVMRead
which maps the memory using vm_remap() instead of reading it.

This is useful for Annotations which use ScopedSpinGuard to
protect reads from simultaneous writes; the in-process intermediate
dump handler can try to take the spin guard when reading such
an Annotation and skip reading it if it the spin guard could not
be obtained.

Change-Id: I60d7a48d1ba4e5d2dfdb44307b78b4d9ffb73560
Bug: crashpad:437
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4114550
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Ben Hamilton <benhamilton@google.com>
2023-01-30 22:19:37 +00:00
Justin Cohen
c11d49db88 Add a mask to MinidumpCrashpadInfo to indicate valid pointer addresses.
ARM64 supports storing pointer authentication codes in the upper bits of
a pointer. This mask can be used by LLDB to mimic ptrauth_strip and
strip the pointer authentication codes. To recover an address from
pointer with an authentication code, `AND` this mask with the pointer.

If the platform does not support pointer authentication, or the range of
valid addressees for a pointer was unaccessible, this field will be 0
and should be ignored.

Change-Id: Ie5cef90802dd1e892d456195ab8874223eac6a1b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2773358
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2023-01-30 18:27:02 +00:00
Jay Zhuang
43eac93aef [fuchsia] Import buildconfig from fuchsia
... when build is targeting Fuchsia

Change-Id: I03fab9368bd5e8687899a2efeb51736707bce81e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4137733
Commit-Queue: Jay Zhuang <jayzhuang@google.com>
Reviewed-by: Francois Rousseau <frousseau@google.com>
2023-01-09 22:58:19 +00:00
Mark Mentovai
21035861b5 mac: Don’t cater to gcc-4.2 libstdc++ brokenness
The try and catch macros were conditionally defined by libstdc++ pre-gcc
4.4 (2009-04-21), fixed in
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25191. Surely none of this
code would build with such an old libstdc++ any more, since Crashpas has
adopted modern C++ (C++11 and later). Remove this obsolete nod to
history.

Change-Id: Ie3cea1ecc1cfd358f27ea48f8111791e7f08bfa5
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4136890
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2023-01-04 17:48:55 +00:00
Jay Zhuang
a41e599f33 [fuchsia] Update crashpad location
... as we move crashpad from //third_party/crashpad to
//third_party/crashpad/src

Change-Id: I081520ad44334cc83397234e5d16535d0db4806d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4132465
Reviewed-by: Francois Rousseau <frousseau@google.com>
Commit-Queue: Jay Zhuang <jayzhuang@google.com>
2023-01-04 01:39:33 +00:00
Ben Hamilton
f7b5e00268 [util] New class ScopedSpinGuard
To support a new crashpad::RingBufferAnnotation type which can be safely
written to and read from simultaneously by different threads/processes,
this CL introduces a new class ScopedSpinGuard, which is a simple RAII
wrapper around an atomic boolean.

Change-Id: I5bafe6927a8dc2a3e25734cb941fd9fce9a8d139
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4031729
Commit-Queue: Ben Hamilton <benhamilton@google.com>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2022-12-15 17:06:55 +00:00
Tom Anderson
72e51701c7 [MSAN] Suppress false-positive in HTTPTransportLibcurl::WriteResponseBody
This bug was found when trying to upgrading the MSAN bots from Ubuntu
18.04 (where this codepath was not hit) to 20.04.  The following MSAN
error is produced when running HTTPTransport/HTTPTransport.*

==3496553==WARNING: MemorySanitizer: use-of-uninitialized-value
    #0 0x5616c540ad7d in __is_long buildtools/third_party/libc++/trunk/include/string:1674:33
    #1 0x5616c540ad7d in size buildtools/third_party/libc++/trunk/include/string:1069:17
    #2 0x5616c540ad7d in crashpad::(anonymous namespace)::HTTPTransportLibcurl::WriteResponseBody(char*, unsigned long, unsigned long, void*) third_party/crashpad/crashpad/util/net/http_transport_libcurl.cc:528:50
    ...
    SUMMARY: MemorySanitizer: use-of-uninitialized-value buildtools/third_party/libc++/trunk/include/string:1674:33 in __is_long
  ORIGIN: invalid (0). Might be a bug in MemorySanitizer origin tracking.

The memory is initialized in http_transport_test.cc:293, but MSAN gets
confused.  Given the message output by MSAN (ORIGIN: invalid (0).
Might be a bug in MemorySanitizer origin tracking), this appears
to be a bug in MSAN, not crashpad, so this CL suppresses the error.

Bug: chromium: 1260217
Change-Id: I2d6a46e3489816270cc1fee776793ffafe0147e4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/4015160
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Thomas Anderson <thomasanderson@chromium.org>
2022-11-14 23:10:18 +00:00
Brian Sheedy
bce9a58c66 Fix locking on certain Android partitions
Copy of crrev.com/c/3952963.

Fixes locking not working on some Android filesystems due to flock not
being available. Instead, we now use the same approach as Fuchsia with
a dedicated lock file. This is an issue when running tests on
non-rooted Android devices, as we need files to be written to a
location accessible without root, but the chosen location might not
have flock support.

Bug: chromium:1358240
Change-Id: Ie910481be472403a8b0e9e36100594b0618f85e6
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3999273
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2022-11-03 22:22:19 +00:00
Joshua Peraza
30ca5564f8 Validate number of bytes read
Bug: chromium:1380083
Change-Id: I54a0dfb72b586638124ecc4150f0b90b9e1aa1d5
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3994208
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
2022-10-31 18:53:36 +00:00
Mark Mentovai
6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00
Alan Zhao
261679b3d2 Move registration_protocol_win structs to their own header file
registration_protocol_win.h includes <string>, which adds an
unacceptable dependency on libc++ in //components/crash/win:chrome_wer
in Chrome as that file is included in crashpad_wer.cc. Rather than
remove <string>, which would require doing a lot of transitive
refactoring work in Crashpad, we just extract the data structures into
another file, as crashpad_wer.cc only includes
registration_protocol_win.h for its struct definitions.

Bug: chromium:1357827
Change-Id: Ic20c2952be07ea75d063702cd346cdca0ab65038
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3864251
Commit-Queue: Alan Zhao <ayzhao@google.com>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2022-08-31 18:06:58 +00:00
Francois Rousseau
43ea32b6fe [fuchsia] remove dependency on libcurl
* crashpad_http_transport_impl is "socket" when targeting Fuchsia
  so the dependency on //third_party/curl:libcurl isn't actually
  ever added - we might as well remove it to prevent confusion

Bug: fuchsia:107235

TESTED=`fx build` in Fuchsia checkout

Change-Id: I75da6e7505f8ab09f9978472e93c48600f4c35cb
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3840964
Commit-Queue: Francois Rousseau <frousseau@google.com>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2022-08-19 16:57:18 +00:00
Justin Cohen
7b105f83ab ios: Properly handle overflows in scoped_vm_read.
Passing -1 (or size_t max) to ScopedVMRead would succeed, because the
amount of memory to be read would overflow vm_address_t/vm_size_t and
turn into something reasonable. ScopedVMRead would return true having
only read a miniscule subset of the requested data length.

Bug: 1348341
Change-Id: I061a1d86928f211c541a6378a78ee045d489a838
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3791710
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2022-07-29 02:33:32 +00:00
Justin Cohen
1b47570f6f ios: Add buffered write to IOSIntermediateDumpWriter.
Adds a 4K buffer to the intermediate dump writer. Aside from the final
flush, only write in multiples of 4K. This saves between 30ms and 50ms
on an iPhone 12 Pro.

Change-Id: Icc4b222477bd91fd6952c7cf43b105e1f7a50adb
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3764243
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-07-25 12:03:48 +00:00
Justin Cohen
df86075acc ios: Prevent duplicate uploads and watchdog kills with slow uploads.
On iOS, holding a lock during a slow upload can lead to watchdog kills
if the app is suspended mid-upload. Instead, if the client can obtain
the lock, the database sets a lock-time file attribute and releases the
flock. The file attribute is cleared when the upload is completed. The
lock-time attribute can be used to prevent file access from other
processes, or to discard reports that likely were terminated mid-upload.

Bug:chromium:1342051
Change-Id: Ib878f6ade8eae467ee39acb52288296759c84582
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3739019
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2022-07-14 18:47:58 +00:00
Justin Cohen
b7db85b62d ios: vm_read module file path before calling strlen.
Adds a new IOSIntermediateDumpWriter::AddPropertyCString method which
takes an address to a cstring of unknown length and page-by-page
searches for a NUL-byte terminator.

This is necessary because currently WriteModuleInfo calls strlen
directly on the dyld and module filePath without first using vm_read.
On iOS14 this occasionally crashes, and is generally unwise. Instead,
use AddPropertyCString.

This patch also removes WriteDyldErrorStringAnnotation, as it's no
longer used going forward with iOS 15.

Bug: 1332862
Change-Id: I3801693bc39259a0127e5175dccf286a1cd97ba7
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3689516
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-07-14 18:47:13 +00:00
Alex Gough
80520bd937 Add WER runtime exception helper module for Windows
This adds a runtime exception helper (& test module) for Windows and
plumbing to allow the module to be registered by the crashpad client,
and to trigger the crashpad handler. Embedders can build their own
module to control which exceptions are passed to the handler.

See: go/chrome-windows-runtime-exception-helper for motivation.

When registered (which is the responsibility of the embedding
application), the helper is loaded by WerFault.exe when Windows
Error Reporting receives crashes that are not caught by crashpad's
normal handlers - for instance a control-flow violation when a
module is compiled with /guard:cf.

Registration:

The embedder must arrange for the full path to the helper to
be added in the appropriate Windows Error Reporting\
RuntimeExceptionHelperModules registry key.

Once an embedder's crashpad client is connected to a crashpad
handler (e.g. through SetIpcPipeName()) the embedder calls
RegisterWerModule. Internally, this registration includes handles
used to trigger the crashpad handler, an area reserved to hold an
exception and context, and structures needed by the crashpad handler.

Following a crash:

WerFault.exe handles the crash then validates and loads the helper
module. WER hands the helper module a handle to the crashing target
process and copies of the exception and context for the faulting thread.

The helper then copies out the client's registration data and
duplicates handles to the crashpad handler, then fills back the various structures in the paused client that the crashpad handler will need.

The helper then signals the crashpad handler, which collects a dump then
notifies the helper that it is done.

Support:

WerRegisterExceptionHelperModule has been availble since at least
Windows 7 but WerFault would not pass on the exceptions that crashpad
could not already handle. This changed in Windows 10 20H1 (19041),
which supports HKCU and HKLM registrations, and passes in more types of
crashes. It is harmless to register the module for earlier versions
of Windows as it simply won't be loaded by WerFault.exe.

Tests:

snapshot/win/end_to_end_test.py has been refactored slightly to
group crash generation and output validation in main() by breaking
up RunTests into smaller functions.

As the module works by being loaded in WerFault.exe it is tested
in end_to_end_test.py.

Bug: crashpad:133, 866033, 865632
Change-Id: Id668bd15a510a24c79753e1bb03e9456f41a9780
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3677284
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Alex Gough <ajgo@chromium.org>
2022-07-07 17:13:24 +00:00
Darshan Sen
1c37daa5ac Reland "posix: Replace DoubleForkAndExec() with ForkAndSpawn()"
This is a reland of 460943dd9a71dc76f68182a8ede766d5543e5341

Original change's description:
> The DoubleForkAndExec() function was taking over 622 milliseconds to run
> on macOS 11 (BigSur) on Intel i5-1038NG7. I did some debugging by adding
> some custom traces and found that the fork() syscall is the bottleneck
> here, i.e., the first fork() takes around 359 milliseconds and the
> nested fork() takes around 263 milliseconds. Replacing the nested fork()
> and exec() with posix_spawn() reduces the time consumption to 257
> milliseconds!
>
> See https://github.com/libuv/libuv/pull/3064 to know why fork() is so
> slow on macOS and why posix_spawn() is a better replacement.
>
> Another point to note is that even base::LaunchProcess() from Chromium
> calls posix_spawnp() on macOS -
> 8f8d82dea0:base/process/launch_mac.cc;l=295-296

The reland isolates the change to non-Android POSIX systems because
posix_spawn and posix_spawnp are available in Android NDK 28, but
Chromium is building with version 23.

Change-Id: If44629f5445bb0e3d0a1d3698b85f047d1cbf04f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3721655
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-06-24 15:45:49 +00:00
Justin Cohen
6e946c4af8 Revert "posix: Replace DoubleForkAndExec() with ForkAndSpawn()"
This reverts commit 460943dd9a71dc76f68182a8ede766d5543e5341.

Reason for revert: This fails to compile in Chromium Android.
posix_spawn and posix_spawnp are available in Android NDK 28, but
Chromium is building with version 23.

https://ci.chromium.org/ui/p/chromium/builders/try/android_compile_dbg/1179765/overview

Original change's description:
> posix: Replace DoubleForkAndExec() with ForkAndSpawn()
>
> The DoubleForkAndExec() function was taking over 622 milliseconds to run
> on macOS 11 (BigSur) on Intel i5-1038NG7. I did some debugging by adding
> some custom traces and found that the fork() syscall is the bottleneck
> here, i.e., the first fork() takes around 359 milliseconds and the
> nested fork() takes around 263 milliseconds. Replacing the nested fork()
> and exec() with posix_spawn() reduces the time consumption to 257
> milliseconds!
>
> See https://github.com/libuv/libuv/pull/3064 to know why fork() is so
> slow on macOS and why posix_spawn() is a better replacement.
>
> Another point to note is that even base::LaunchProcess() from Chromium
> calls posix_spawnp() on macOS -
> 8f8d82dea0:base/process/launch_mac.cc;l=295-296
>
> Change-Id: I25c6ee9629a1ae5d0c32b361b56a1ce0b4b0fd26
> Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3641386
> Reviewed-by: Mark Mentovai <mark@chromium.org>
> Commit-Queue: Mark Mentovai <mark@chromium.org>

Change-Id: I7f6161bc4734c50308438cdde1e193023ee9bfb8
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3719439
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-06-23 12:08:23 +00:00
Nico Weber
7c30a508eb Build actual crashpad .asm files in win/cross builds
Now that we have llvm-ml, we no longer need the workaround for this.

This upstreams
https://chromium-review.googlesource.com/c/chromium/src/+/3708412

Bug: chromium:762167
Change-Id: Iadc8ba9753bb7dd079415ee744f3b176b7e2f629
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3707748
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-06-17 13:48:37 +00:00
Darshan Sen
460943dd9a posix: Replace DoubleForkAndExec() with ForkAndSpawn()
The DoubleForkAndExec() function was taking over 622 milliseconds to run
on macOS 11 (BigSur) on Intel i5-1038NG7. I did some debugging by adding
some custom traces and found that the fork() syscall is the bottleneck
here, i.e., the first fork() takes around 359 milliseconds and the
nested fork() takes around 263 milliseconds. Replacing the nested fork()
and exec() with posix_spawn() reduces the time consumption to 257
milliseconds!

See https://github.com/libuv/libuv/pull/3064 to know why fork() is so
slow on macOS and why posix_spawn() is a better replacement.

Another point to note is that even base::LaunchProcess() from Chromium
calls posix_spawnp() on macOS -
8f8d82dea0:base/process/launch_mac.cc;l=295-296

Change-Id: I25c6ee9629a1ae5d0c32b361b56a1ce0b4b0fd26
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3641386
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-06-16 13:42:26 +00:00
Clemens Backes
2bf08e6223 Detect blocked signal installation by sanitizers
Sanitizers can prevent the installation of signal handlers, but
sigaction would still return 0 (for success). Detect this by checking
the installed signal handler via a second call to sigaction.

R=mark@chromium.org

Bug: chromium:1328749
Change-Id: I62a5777379ec5c6b1ca2d5a62e7cd3fb8ed1437b
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3702302
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
2022-06-14 14:25:29 +00:00
Ben Hamilton
ed8cfeb2cd [snapshot] Add support for thread names
This CL adds a new method ThreadSnapshot::ThreadName(), implements
it in each snapshot implementation, and adds tests for iOS, macOS,
Linux, Windows, and Fuchsia.

Bug: crashpad:327
Change-Id: I35031975223854c19d977e057dd026a40d33fd41
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3671776
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Ben Hamilton <benhamilton@google.com>
Reviewed-by: Ben Hamilton <benhamilton@google.com>
2022-06-13 20:58:37 +00:00
Peter Kasting
5f2a706f71 Blind attempt to fix compile failure in latest roll.
Bug: none
Change-Id: Iea44283cf4df029b595e87bb42b57422e310e7a4
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3659054
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
2022-05-23 04:44:26 +00:00
Peter Kasting
13a1e171eb C++20 build fixes.
* ATOMIC_FLAG_INIT is deprecated.
* Compound ops on volatiles are deprecated.

Bug: chromium:1284275
Change-Id: I2235662c00e4be8c5eba2aaf565663faf8d9576a
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3658639
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2022-05-22 01:13:35 +00:00
Ben Hamilton
2071abaeb4 [ios] Fix FD leak in IOSIntermediateDumpWriter
IOSIntermediateDumpWriter::Close() is intended to close the FD opened
by the in-process handler.

Currently, InProcessHandler::ScopedLockedWriter::~ScopedLockedWriter() does invoke IOSIntermediateDumpWriter::Close().

However, InProcessHandler::Initialize() invokes the utility CreateWriterWithPath() which directly creates an IOSIntermediateDumpWriter. It neither uses ScopedLockedWriter nor invokes Close().

This fixes the issue by:

1) Making IOSIntermediateDumpWriter::~IOSIntermediateDumpWriter() DCHECK() that it's closed
2) Calling IOSIntermediateDumpWriter::Close() from InProcessHandler::~InProcessHandler() and from test files

Change-Id: Ibfede0a3d2aeac948c7ff3d56445e13d1a4028b5
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3648710
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Justin Cohen <justincohen@chromium.org>
2022-05-18 19:25:09 +00:00
Justin Cohen
4581a355b1 ios: Limit depth of intermediate dump parser.
Limit the parser stack to 10 to prevent malformed intermediate dumps
from causing a stack overflow.

Bug: 1321382
Change-Id: I880e80de585b0fb18f0c383102b9227d6ffbfa76
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3637719
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2022-05-11 16:24:00 +00:00
Sylvain Defresne
7bc7e7508f Fix flaky noop build failure of crashpad
Linking crashpad (//third_party/crashpad/crashpad:util) target
into a target built for a secondary toolchain could cause noop
build failure because of an incorrect `include_dirs` directive.

The library depends on a generated buildflag, which when in a
secondary toolchain is generated to $root_gen_dir, a directory
that includes the toolchain name (except for the primary one).

The target added $root_build_dir/gen to its `include_dirs`
which is equal to $root_gen_dir for the primary toolchain, but
distinct for secondary toolchain.

Moreover, `include_dirs` define directly in a `source_set` are
placed before any `include_dirs` values inherited from configs.
This means that $root_build_dir/gen was before $root_gen_dir in
the list ($root_gen_dir is inherited from default config when
building Chromium).

The result is that building any crashpad files would result in
them trying to first include the version of the buildflag that
was generated for the primary toolchain, and if not found, using
the correct one. This was then recorded in the depfile generated
by the compiler.

This meant that it was possible for the build to be incorrect
(as the content of the buildflag may be different between the
two toolchains) and cause flaky noop failures (as the buildlag
generation for the primary toolchain and the compilation of
the source file for the secondary toolchain are unordered, but
a dependency was recorded via the depfile leading ninja to
report a dirty build).

The fix is simple, use the correct value $root_gen_dir in the
`include_dirs` directive.

Fixed: chromium:1314711
Change-Id: Icba521313e4105713e66fa576d730b00c7e74c21
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3579401
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-04-08 15:07:36 +00:00
Justin Cohen
f88a116c0e Update Crashpad scripts to python3
Also update mini_chromium to f87a38442a9e for python3 changes.

Change-Id: I4ca7aa4cc9dcc97698fc0bc13cfb339421668074
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3542572
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-03-24 02:50:56 +00:00
Justin Cohen
243dffb045 ios: Stop prune and upload thread when app is inactive and may suspend.
Stop the prune thread and the upload thread when moving to the
inactive/background state. This will reduce the number of 0xdead10cc
system kills from having a file lock during iOS suspend.

Wait to start the prune thread when the application is active.
Otherwise, for iOS prewarmed applications, the prune thread will
regularly start when the application is foregrounded for the first
time when the user intentionally runs the app.

It's still possible for either the prune thread or the upload thread to
have a file lock during iOS suspend, such as when a task started in the
foreground and does not complete in time for suspension. Future work
should include considering BackgroundTasks and/or NSURLSessions, which
can more safely run in the background.

Bug: crashpad: 400
Change-Id: Ic7d4687eb795fe585327f128aa84a5928141f4a9
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3517967
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-03-23 02:53:15 +00:00
Justin Cohen
cd13ea34eb ios: Add ScopedBackgroundTask to UploadThread and PruneThread.
iOS applications may be terminated with the exception code 0xdead10cc
when holding on to file locks in the shared container during suspension.
One approach to minimize this is to request additional background
execution time to complete the locking operation (in this case the
CrashReportUpload thread and the PruneIntermediateDumpsAndCrashReports
thread).

Bug: crashpad:400
Change-Id: I4192ae1a92646ea337a09ac071e49761ab2d3860
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3517966
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-03-15 17:23:20 +00:00
Justin Cohen
9c1719802f ios: Replace RawLog FileHandler instead of using freopen for tests.
Previous commits[1][2] modified tests to require looking at RawLog
output to validate the success or failure of the iOS InHandlerProcess.
Previously this would use freopen to direct the RawLog to a file.
However, freopen introduces a race where the log file may not be
associated with stderr, and instead may interfere with the
InProcessHandler's cached writer fd. This caused flake with the
intermediate dumps sometimes including stderr logging.

Since the test fixtures only needs to know about the output of RawLog,
instead add a crashpad::internal::SetFileHandleForTesting method to
that swaps out STDERR_FILENO with the test fixture's fd.

[1] https://crrev.com/c/3488826
[2] https://crrev.com/c/3401563

Change-Id: I87b1020db6b896a47bec5a7c916a572c192b884f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3517773
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-03-15 17:10:30 +00:00
Justin Cohen
12b35ebde8 ios: Add forbidden allocator to integration tests.
Override malloc_default_zone and malloc_default_purgeable_zone
with allocators that exit when called from the signal or Mach exception
threads in XCUITests, to verify the allocator is not used by the
InProcessHandler. Check stderr for error messages to confirm failures.

Change-Id: I1bb92e57504d71bbf6c6eaad3571c814e8a6934c
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3488826
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-03-10 18:08:46 +00:00
Daniel Cheng
0affe61689 Migrate base::{size,empty,data} to STL equivalents in crashpad.
Bug: chromium:1299695
Change-Id: I95187a425b08c96430c659f843c379d506972f0f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3496462
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-03-01 12:06:49 +00:00
Ben Hamilton
e9937cb36c [Cleanup] Fix circular dependency on Windows.
Crashpad currently has a circular dependency: client->snapshot->client.

The dependency from snapshot -> client only exists to pull in a single
constant for Windows (CrashpadClient::kTriggeredExceptionCode), so this
change breaks the dependency by splitting the constant out into a new
file util/win/exception_codes.h.

Change-Id: I6b74b367df716e097758e63a44c53cb92ea5e04d
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3450763
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
2022-02-17 19:33:24 +00:00
André Kempe
45cc0da93a arm64: Add Armv8.3-A PAC support to assembly files
This patch adds optional support for Arm Pointer Authentication Codes.

X30/LR is not stored to stack at any place and restored for usage.
Therefore only adding PAC flag to .note.gnu.property section.

Change-Id: I9581059dfa1eed88af5a73df15b6a0d299caea13
Bug: crashpad: 1145581
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3440070
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Adenilson Cavalcanti <cavalcantii@chromium.org>
2022-02-08 08:42:05 +00:00
Mark Mentovai
50ed179e9a Use BUILDFLAG for OS checking
Use BUILDFLAG(IS_*) instead of defined(OS_*).

This was generated mostly mechnically by performing the following steps:
 - sed -i '' -E -e 's/defined\(OS_/BUILDFLAG(IS_/g' \
                -e 's%([ !])OS_([A-Z]+)%\1BUILDFLAG(IS_\2)%g' \
       $(git grep -l 'OS_'
         '**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm')
 - sed -i '' -e 's/#ifdef BUILDFLAG(/#if BUILDFLAG(/' \
       $(git grep -l '#ifdef BUILDFLAG('
         '**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm')
 - gsed -i -z -E -e \
       's%(.*)#include "%\1#include "build/buildflag.h"\n#include "%' \
       $(git grep -l 'BUILDFLAG(IS_'
         '**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm')
 - Spot checks to move #include "build/buildflag.h" to the correct parts
   of files.
 - sed -i '' -E -e \
       's%^(#include "build/buildflag.h")$%#include "build/build_config.h"\n\1%' \
       $(grep -L '^#include "build/build_config.h"$'
         $(git grep -l 'BUILDFLAG(IS_'
           '**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm'))
 - Add “clang-format off” around tool usage messages.
 - git cl format
 - Update mini_chromium to 85ba51f98278 (intermediate step).
   TESTING ONLY).
 - for f in $(git grep -l '^#include "build/buildflag.h"$'
              '**/*.c' '**/*.cc' '**/*.h' '**/*.m' '**/*.mm'); do \
       grep -v '^#include "build/buildflag.h"$' "${f}" > /tmp/z; \
       cp /tmp/z "${f}"; done
 - git cl format
 - Update mini_chromium to 735143774c5f (intermediate step).
 - Update mini_chromium to f41420eb45fa (as checked in).
 - Update mini_chromium to 6e2f204b4ae1 (as checked in).

For ease of review and inspection, each of these steps is uploaded as a
new patch set in a review series.

This includes an update of mini_chromium to 6e2f204b4ae1:

f41420eb45fa Use BUILDFLAG for OS checking
6e2f204b4ae1 Include what you use: string_util.h uses build_config.h

Bug: chromium:1234043
Change-Id: Ieef86186f094c64e59b853729737e36982f8cf69
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3400258
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-01-19 20:21:19 +00:00
Aleksey Khoroshilov
9ed7e84644 MacOS, iOS: Replace dynamic comments in mig-generated files with stable ones.
Mig-generated files contain mig identifiers, which include timestamp and mig build info.
To improve build determinism and goma cachehits we can replace these lines with something stable.

Bug: crashpad:390
Change-Id: Iedb2f6e64428612899587c2ac4d488baf439961f
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3394052
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-01-18 17:20:04 +00:00
Avi Drissman
824ddb2de1 Fix presubmit issues
- Formatted util/misc/initialization_state_dcheck.h
- Included build/build_config.h file in
  util/stdlib/aligned_allocator_test.cc as it uses an
  OS_* macro.

Change-Id: I8fb67f1ae440834d1b60f390658513a341789428
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3390648
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
2022-01-15 00:09:21 +00:00
Avi Drissman
b560edd484 Remove ALLOW_UNUSED_LOCAL from Crashpad
Bug: 1286390
Change-Id: I9755258960c55bef84e01812a14067ffaf89d2b1
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3388879
Commit-Queue: Avi Drissman <avi@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2022-01-14 23:11:32 +00:00
Avi Drissman
23375ab37c Use std::ignore rather than ignore_result in Crashpad
Bug: 1285085
Change-Id: I02f1eb608a704fe58b72c094b96af6c7577be4bf
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3373171
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
2022-01-07 22:38:52 +00:00
Nathan Mulcahey
ae39cec086 [util/net] Fix append to undefined defines
From the Fuchsia build:
```
 ERROR at //third_party/crashpad/util/BUILD.gn:658:7: Undefined identifier.
       defines += [ "CRASHPAD_USE_BORINGSSL" ]
       ^------
 See //src/developer/forensics/crash_reports/BUILD.gn:127:5: which caused the file to be included.
     "//third_party/crashpad/util",
     ^----------------------------
```

Change-Id: I1f563e5bb599b3a7a83ee8211037ee1d7464bd62
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3370891
Reviewed-by: Francois Rousseau <frousseau@google.com>
Commit-Queue: Francois Rousseau <frousseau@google.com>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2022-01-06 20:04:42 +00:00
Salome Thirot
fe19de6e1d arm64: Add Armv8.5-A BTI support to assembly files.
Change-Id: Ic9c2d252829a39b0331e436df16effe7d0607996
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3241142
Commit-Queue: Jonathan Wright <jonathan.wright@arm.com>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2021-12-01 10:47:56 +00:00
Nico Weber
281ba70a13 Fix build with /std:c++17 on 32-bit Windows
Bug: chromium:1274168
Change-Id: I31c300f5cb078e90f25c5752c821f756dedd8591
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3304552
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
2021-11-27 01:26:14 +00:00
Peter Collingbourne
0d26b02c37 Reraise signals via rt_tgsigqueueinfo(2) on Linux (try 2).
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>
2021-11-25 00:33:31 +00:00
Peter Collingbourne
c537245de8 Revert "Reraise signals via rt_tgsigqueueinfo(2) on Linux."
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>
2021-11-24 22:09:30 +00:00
Justin Cohen
3a7e935a86 ios: Handle partial intermediate dumps and exception contexts.
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>
2021-11-22 21:07:13 +00:00
Justin Cohen
4b86b27773 ios: Add IOSIntermediateDumpInterface.
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>
2021-11-21 04:29:36 +00:00