26 Commits

Author SHA1 Message Date
Mark Mentovai
cc166d71f4 Use base::size where appropriate, and ArraySize elsewhere
This is a follow-up to c8a016b99d97, following the post-landing
discussion at
https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1393921/5#message-2058541d8c4505d20a990ab7734cd758e437a5f7

base::size, and std::size that will eventually replace it when C++17 is
assured, does not allow the size of non-static data members to be taken
in constant expression context. The remaining uses of ArraySize are in:

minidump/minidump_exception_writer.cc (×1)
minidump/minidump_system_info_writer.cc (×2, also uses base::size)
snapshot/cpu_context.cc (×4, also uses base::size)
util/misc/arraysize_test.cc (×10, of course)

The first of these occurs when initializing a constexpr variable. All
others are in expressions used with static_assert.

Includes:
Update mini_chromium to 737433ebade4d446643c6c07daae02a67e8deccao

f701716d9546 Add Windows ARM64 build target to mini_chromium
87a95a3d6ac2 Remove the arraysize macro
1f7255ead1f7 Placate MSVC in areas of base::size usage
737433ebade4 Add cast

Bug: chromium:837308
Change-Id: I6a5162654461b1bdd9b7b6864d0d71a734bcde19
Reviewed-on: https://chromium-review.googlesource.com/c/1396108
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2019-01-04 22:42:57 +00:00
Avi Drissman
c8a016b99d Remove base's arraysize from Crashpad.
BUG=837308
R=mark@chromium.org

Change-Id: Ibecbfc7bc2d61ee54bc1114e4b20978adbc77db2
Reviewed-on: https://chromium-review.googlesource.com/c/1393921
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Avi Drissman <avi@chromium.org>
2019-01-03 19:44:15 +00:00
Robert Sesek
6dd2be7c44 Stop providing unimplemented stubs for util/mach/exc_server_variants.cc.
Rather than providing these stubs to make the linker happy, use the
mig.py script to modify the _Xserver_routine functions to not even call
server_routine.

Change-Id: I5a2f5cd228462e38dddbf899d0ad8033a6f817bd
Reviewed-on: https://chromium-review.googlesource.com/773359
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-11-16 00:09:23 +00:00
Mark Mentovai
6dac7ecdf5 Use constexpr at function scope
This is essentially based on a search for “^ *const [^*&]*=[^(]*$”

Change-Id: Id571119d0b9a64c6f387eccd51cea7c9eb530e13
Reviewed-on: https://chromium-review.googlesource.com/585555
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
2017-07-29 00:50:40 +00:00
Mark Mentovai
6d2d31d2d1 Use base/macros.h instead of base/basictypes.h
This was done in Chromium’s local copy of Crashpad in 562827afb599. This
change is similar to that one, except more care was taken to avoid
including headers from a .cc or _test.cc when already included by the
associated .h. Rather than using <stddef.h> for size_t, Crashpad has
always used <sys/types.h>, so that’s used here as well.

This updates mini_chromium to 8a2363f486e3a0dc562a68884832d06d28d38dcc,
which removes base/basictypes.h.

e128dcf10122 Remove base/move.h; use std::move() instead of Pass()
8a2363f486e3 Move basictypes.h to macros.h

R=avi@chromium.org

Review URL: https://codereview.chromium.org/1566713002 .
2016-01-06 12:22:50 -05:00
Mark Mentovai
9086d25ce8 Don’t trigger EXC_CORPSE_NOTIFY on OS X 10.11
CrashReportExceptionHandler::CatchMachException() must always set a
valid new_state. Failing to do so appears to trigger corpse generation
on OS X 10.11. This is addressed by calling ExcServerCopyState().
Previously, this was not done for exceptions forwarded to the user
ReportCrash, under the apparent mistaken assumption that ReportCrash
would do it. However, ReportCrash is given copies of out-parameters like
new_state to explicitly prevent it from influencing Crashpad’s returned
state.

ExcServerSuccessfulReturnValue() must not return MACH_RCV_PORT_DIED for
an EXC_CRASH handler on OS X 10.11. This appears to trigger corpse
generation. This is addressed by always returning KERN_SUCCESS from
EXC_CRASH handlers on OS X 10.11.

This also adds generic EXC_CORPSE_NOTIFY support throughout Crashpad.
The crashpad_handler does not listen for this exception type, but it is
now possible to work with this exception type using tools like
exception_port_tool and catch_exception_tool.

BUG=crashpad:48
TEST=Crashes handled by crashpad_handler do not result in the generation
     of reports in the root /Library/Logs/DiagnosticReports.

R=kerrnel@chromium.org, rsesek@chromium.org

Review URL: https://codereview.chromium.org/1305893010 .
2015-09-04 14:29:12 -04:00
Mark Mentovai
1baff4ff92 Accept non-fatal resource exceptions without generating crash reports.
This adds IsExceptionNonfatalResource() and its test, and uses it in
crashpad_handler. When non-fatal resource exceptions are encountered, no
crash report is generated. crashpad_handler swallows these exceptions.
Alternatively, it could allow them to be sent to the system’s host-level
resource exception handler, normally com.apple.ReportCrash.root, which
would allow them to be processed in the same way as when Crashpad is not
in use. I’m not sure which option is better. I chose to swallow them
because there doesn’t appear to be much value in letting
com.apple.ReportCrash.root and spindump look at them.

This also moves ExcCrashRecoverOriginalException() to the new file as a
sibling of IsExceptionNonfatalResource(). This provides better
organization.

BUG=crashpad:35, chromium:474163, chromium:474326
TEST=crashpad_util_test ExceptionTypes.IsExceptionNonfatalResource
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1066243002
2015-04-08 17:46:09 -04:00
Mark Mentovai
40b1d7cb1d Add ConstThreadState to mach_extensions.h and use it everywhere.
TEST=everything
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1058523002
2015-04-02 15:28:28 -04:00
Mark Mentovai
352160906b Add ExcServerCopyState().
ExcServerCopyState() properly sets the new_state and new_state_count
out-parameters for exception handler routines that may deal with
state-carrying exceptions.

This used to exist inline in catch_exception_tool, but that
implementation had a bug caught by the new test.

TEST=crashpad_util_test ExcServerVariants.ExcServerCopyState and others
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1049023003
2015-04-01 12:16:22 -04:00
Mark Mentovai
55861e88ce util/mach/exc_server_variants.cc: Remove unused typedefs.
BUG=crashpad:12
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/989023002
2015-03-08 15:15:53 -04:00
Mark Mentovai
554e75422c MachMessageServer::Interface implementations: minor cleanups.
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/799463003
2014-12-15 14:47:47 -05:00
Mark Mentovai
508a33dc7a exc_server_variants: Templatize and use CompositeMachMessageServer.
The implementations for the exc and mach_exc subsystems were nearly
identical, and were a good target for templatization. The existing
split between exc and mach_exc was a good candidate for unification
based on CompositeMachMessageServer instead of the custom unification
previously done in UniversalMachMessageServer.

TEST=util_test ExcServerVariants.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/766193006
2014-12-11 14:29:42 -05:00
Mark Mentovai
c83e773c33 Add CompositeMachMessageServer and its test.
TEST=util_test CompositeMachMessageServer*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/781823002
2014-12-04 16:45:02 -05:00
Mark Mentovai
821ed8fe0f UniversalMachExcServer: eliminate multiple implementation inheritance.
UniversalMachExcServer provided both an interface and an implementation,
contrary to the other classes in the exc_server_variants family. This
was mostly done for reasons of economy in an already-large class family.
Unfortunately, this decision meant that it was impossible for other code
to use UniversalMachExcServer, which required that CatchMachException()
be implemented, and also extend another class without violating the
style guide’s prohibition of multiple implementation inheritance. This
became a problem in a lot of test code, which extended MachMultiprocess
and UniversalMachExcServer.

UniversalMachExcServer is now given its own nested Interface class,
which is a pure interface. All users of UniversalMachExcServer are
changed from “is-a” UniversalMachExcServer to “has-a”
UniversalMachExcServer and “is-a” UniversalMachExcServer::Interface.

TEST=client_test, snapshot_test, util_test
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/775943005
2014-12-04 10:18:24 -05:00
Mark Mentovai
c0d5d87785 Move mach_message_util.* to mach_message.*.
A subsequent change will add MachMessageWithDeadline(), a mach_msg()
wrapper. Conceptually, it makes sense to include that function in this
file family. Since this file family now contains a mach_msg() wrapper,
it makes sense to rename it mach_message and lose the _util suffix.

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/772133004
2014-12-02 17:02:32 -05:00
Mark Mentovai
0437bc53b6 Pass Mach message trailers to server handler functions.
TEST=util_test ChildPortServer.*:ExcServerVariants.*:MachMessageUtil.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/755313004
2014-12-01 16:06:56 -05:00
Mark Mentovai
04aaa36026 Add ChildPortServer, a MachMessageServer::Interface implementation for
the child_port subsystem.

Common routines shared with the ExcServer family of classes have been
moved to a new file, where they can be shared between different
MachMessageServer::Interface implementations.

TEST=util_test ChildPortServer.*:MachMessageUtil.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/754123002
2014-11-25 14:29:46 -05:00
Mark Mentovai
e4551e709c exc_server_variants: use DISALLOW_COPY_AND_ASSIGN.
TEST=util_test ExcServerVariants.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/753563003
2014-11-21 14:29:42 -05:00
Mark Mentovai
de0979b930 C++11: Use type aliases instead of typedefs.
This replaces all occurrences of “typedef Y X;” with “using X = Y;”.

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/700143004
2014-11-05 14:09:01 -05:00
Mark Mentovai
5d74f120fc Convert NULL to nullptr.
This change was generated mechanically by running:

  find . \( -name \*.cc -or -name \*.mm -or -name \*.h \) \
      -and -not -path ./third_party/\* -and -not -path ./out/\* \
      -exec sed -i '' -E -e 's/(^|[^_])NULL/\1nullptr/g' {} +

Further manual fix-ups were applied to remove casts of nullptr to other
pointer types where possible, to preserve the intentional use of NULL
(as a short form of MACH_PORT_NULL) in exception_port_tool, and to fix
80-column violations.

https://groups.google.com/a/chromium.org/d/topic/chromium-dev/4mijeJHzxLg/discussion

TEST=*_test
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/656703002
2014-10-14 11:10:45 -04:00
Mark Mentovai
8c7872e9e0 Use the correct null constants for Mach threads, tasks, and hosts.
This uses THREAD_NULL, TASK_NULL, and HOST_NULL in preference to
MACH_PORT_NULL and kMachPortNull. These constants are correctly-typed
(thread_t, task_t, and host_t) and result in more readable source code,
especially where thread and task parameters appear together as they do
in exc_*_variants.

TEST=util_test
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/649713002
2014-10-13 12:59:21 -04:00
Mark Mentovai
021c93c2e0 Use a more specific type, mach_exception_code_t, when possible.
mach_exception_data_type_t is more generic and is used for any element
of a codes[] array. For individual elements, the typedefs
mach_exception_code_t and mach_exception_subcode_t are available. Using
mach_exception_code_t when possible gives slightly more descriptive
code.

No functional change.

TEST=util_test ExcServerVariants.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/585473003
2014-09-18 11:56:03 -04:00
Mark Mentovai
b4fe6dfae0 Refactor EXC_CRASH code[0] processing into a new function,
ExcCrashRecoverOriginalException(), and use it where sensible.

TEST=util_test ExcVariantsTest.ExcCrashRecoverOriginalException …
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/566693003
2014-09-17 17:59:35 -04:00
Mark Mentovai
57eb311528 Add ExcServerSuccessfulReturnValue() and its test.
There’s also some light reformatting in here. Should save a few lines.

TEST=util_test ExcServerVariants.ExcServerSuccessfulReturnValue
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/574753003
2014-09-17 12:08:18 -04:00
Mark Mentovai
fbf12950fe MachMessageServer: Make request messages const.
There’s no reason that “in” or “request” messages should be non-const.
This makes them const, bridges the const gap left by the MIG-generated
“check” functions with wrappers, and uses non-const fields in
“out” messages instead of const fields in “in” messages for in-out
parameters.

TEST=util_test ExcServerVariants.*:MachMessageServer.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/564533002
2014-09-10 18:57:14 -04:00
Mark Mentovai
177f5dcddc Add exc_server_variants including UniversalMachExcServer and its test.
TEST=util_test ExcServerVariants.*
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/545053003
2014-09-10 17:29:07 -04:00