43 Commits

Author SHA1 Message Date
Joshua Peraza
6c270cf239 linux: Refactor test modules
This patch moves LoadModule() to it's own file from
process_reader_linux_test.cc so that it may be used in
other tests that interact with loaded modules.

Change-Id: Ie4f7932d65710fc3e20b6e2488e497c5aab27cdd
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2569882
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
2020-12-03 23:24:15 +00:00
Mark Mentovai
a45eea40fc Update gtest to e3f0319d89f4cbf32993de595d984183b1a9fc57
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>
2020-05-07 14:56:07 +00:00
Vlad Tsyrklevich
760da9b96a Delete snapshot/api/module_annotations_win*
This API was added for Kasko several years ago but that project is
defunct and this API does not appear to be used elsewhere.

Bug: crashpad:270
Change-Id: I5a409deff7c5cf4f9f552893d4a49303f3000164
Reviewed-on: https://chromium-review.googlesource.com/c/1388022
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Vlad Tsyrklevich <vtsyrklevich@chromium.org>
2018-12-21 19:19:24 +00:00
Vlad Tsyrklevich
cc60f9329e Refactor PEImageAnnotationsReader test
In preparation for deleting the PEImageAnnotationsReader (and replacing
it with the generic ImageAnnotationsReader) change the
PEImageAnnotationsReader test to be a ModuleSnapshotWin test instead.
The tests are still useful for testing the annotations on the module
snapshot.

Bug: crashpad:270
Change-Id: Ibbbc69c72ca2eb98bfae9dc9b57bf28e9d3f12e2
Reviewed-on: https://chromium-review.googlesource.com/c/1388018
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Vlad Tsyrklevich <vtsyrklevich@chromium.org>
2018-12-21 15:50:44 +00:00
Djordje Golubovic
cb41ba7471 Added MIPS support to crashpad.
Modified gyp/gn files to support MIPS targets.

Implemented thread_info, cpu_context, signal context classes for MIPS target.

Addressed MIPS specific signal ordering.

Added "MIPS Technologies, Inc." to AUTHORS file.

Bug: crashpad:232
Change-Id: Ibfc221ba54088e95f984b9dc6be5fd52f86abcc2
Reviewed-on: https://chromium-review.googlesource.com/1064594
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2018-07-10 15:29:34 +00:00
Joshua Peraza
d1e6a2130d android/linux: add a client interface to control sanitization
Sanitization is controlled by a SanitizationInformation struct to be
read from the client's memory. The address of this struct is either
passed in a ClientInformation when the client requests a crash dump,
or as a flag to the handler --sanitization_information.

Bug: crashpad:30
Change-Id: I2744f8fb85b4fea7362b2b88faa4bef1da74e36b
Reviewed-on: https://chromium-review.googlesource.com/1083143
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
2018-06-12 15:37:11 +00:00
Joshua Peraza
a42b5269b4 Add ProcessSnapshotSanitized
A ProcessSnapshotSanitized enables filtering possibly sensitive
information from a snapshot.

WebView has different privacy constraints than Chrome and needs to
avoid collecting data in annotations or from stack memory that may
contain PII. This CL enables:

1. Filtering annotations by name using a whitelist.
2. Filtering for crashes which reference a particular module.
3. Redacting non-essential information from stack memory.

This CL does not provide a client interface to enable sanitization.

Bug: crashpad:30
Change-Id: I8944c70fdcca6d6d4b7955d983320909bf871254
Reviewed-on: https://chromium-review.googlesource.com/1070472
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
2018-06-11 16:46:29 +00:00
Scott Graham
2b05eb522f Rename ProcessReader to platform-suffixed versions
Mac's ProcessReader becomes ProcessReaderMac.
Linux/Android's ProcessReader becomes ProcessReaderLinux.
Fuchsia's ProcessReader becomes ProcessReaderFuchsia.

No intended change in behavior.

Bug: crashpad:196, crashpad:30
Change-Id: I7ec8d72f79533bd78189173261ade2ad99010bad
Reviewed-on: https://chromium-review.googlesource.com/930321
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>
2018-02-22 21:33:39 +00:00
Scott Graham
0403602393 Fix CrashpadInfoSizes_ClientOptions/CrashpadInfoSizes_ClientOptions
These tests needed to be updated to expose CrashpadInfo in the same way
as the main CrashpadInfo g_crashpad_info is found on
Linux/Android/Fuchsia.

Unfortunately, while the tests pass on Fuchsia when run in isolation,
the implementation of dlclose() on Fuchsia currently does nothing. So,
if the full test suite is run, there's interference between the test
modules (i.e. the values in _small vs. the values in _large), so the
tests fail.

I filed ZX-1728 upstream about this to see if it might be implemented,
or if the test will need to spawn a clean child to do the module load
tests in.

Bug: crashpad:196
Change-Id: I9ee01b142a29c508c6967dc83da824afa254d379
Reviewed-on: https://chromium-review.googlesource.com/923182
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>
2018-02-16 18:48:58 +00:00
Scott Graham
9b6c69cbb5 Coalesce memory ranges
Follows https://chromium-review.googlesource.com/c/374019/.

Causes MinidumpMemoryListWriter to merge all overlapping ranges before
writing the MINIDUMP_MEMORY_LIST. This is:

1) Necessary for the Google internal crash processor, which in some
   cases attempts to read the raw memory (displaying ASAN red zones),
   and aborts if there are any overlapping ranges in the minidump on
   load;

2) Necessary for new-ish versions of windbg (see bug 216 below). It is
   believed that this is a change in behavior in the tool that made
   dumps with overlapping ranges unreadable;

3) More efficient. The .dmp for crashy_program goes from 306K to 140K
   with this enabled. In Chrome minidumps where
   set_gather_indirectly_referenced_memory() is used (in practice this
   means Chrome Windows Beta, Dev, and Canary), the savings are expected
   to be substantial.

Bug: crashpad:61, chromium:638370, crashpad:216

Change-Id: I969e1a52da555ceba59a727d933bfeef6787c7a5
Reviewed-on: https://chromium-review.googlesource.com/374539
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2018-02-02 00:04:20 +00:00
Scott Graham
1f1657d573 Read either DT_HASH or DT_GNU_HASH to determine the size of DT_SYMTAB
Without the section headers for the symbol table, there's no direct way
to calculate the number of entries in the table.

DT_HASH and DT_GNU_HASH are auxiliary tables that are designed to make
symbol lookup faster. DT_HASH is the original and is theoretically
mandatory. DT_GNU_HASH is the new-and-improved, but is more complex.

In practice, however, an Android build (at least vs. API 16) has only
DT_HASH, and not DT_GNU_HASH, and a Fuchsia build has only DT_GNU_HASH
but not DT_HASH. So, both are tried.

This change does not actually use the data in these tables to improve
the speed of symbol lookup, but instead only uses them to correctly
terminate the linear search.

DT_HASH contains the total number of symbols in the symbol table fairly
directly because there is an entry for each symbol table entry in the
hash table, so the number is the same.

DT_GNU_HASH regrettably does not. Instead, it's necessary to walk the
buckets and chain structure to find the largest entry.

DT_GNU_HASH doesn't appear in any "real" documentation that I'm aware
of, other than the binutils code (at least as far as I know). Some
more-and-less-useful references:
- https://flapenguin.me/2017/04/24/elf-lookup-dt-hash/
- https://flapenguin.me/2017/05/10/elf-lookup-dt-gnu-hash/
- http://deroko.phearless.org/dt_gnu_hash.txt
- https://sourceware.org/ml/binutils/2006-10/msg00377.html

Change-Id: I7cfc4372f29efc37446f0931d22a1f790e44076f
Bug: crashpad:213, crashpad:196
Reviewed-on: https://chromium-review.googlesource.com/876879
Commit-Queue: Scott Graham <scottmg@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2018-01-30 22:40:17 +00:00
Joshua Peraza
878af9cbbd Add AnnotationReader to read annotation types via a ProcessMemory
Bug: crashpad:30
Change-Id: Icd13d29992b8684ca92916068f12428c25e0e775
Reviewed-on: https://chromium-review.googlesource.com/846519
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2018-01-09 21:52:06 +00:00
Joshua Peraza
70563e92f4 Add CrashpadInfoReader to read CrashpadInfo via ProcessMemory
Bug: crashpad:30
Change-Id: I295d518ee0eef1fd61e5544cd6bad25827d07a02
Reviewed-on: https://chromium-review.googlesource.com/846025
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
2018-01-09 01:27:50 +00:00
Joshua Peraza
7a0daa6989 Enable reading notes from ELF images
Bug: crashpad:30
Change-Id: Ie6c594b05c6d39a869ed30b7a7b49e6a6301cc65
Reviewed-on: https://chromium-review.googlesource.com/792539
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-12-05 19:27:37 +00:00
Mark Mentovai
d7798a4e28 Tolerate safe size mismatches in the CrashpadInfo struct
The handler will now be less strict about checking CrashpadInfo struct
sizes. Assuming the signature and version fields match:

 - If the handler sees a struct smaller than it’s expecting, the module
   was likely built with an earlier version of the client library, and
   it’s safe to treat the unknown fields as though they were zero or
   other suitable default values.
 - If the handler sees a struct larger than it’s expecting, the module
   was likely built with a later version of the client library. In that
   case, actions desired by the client will not be performed, but this
   is not otherwise an error condition.

The CrashpadInfo struct must always be at least large enough to contain
at least the size field. The signature and version fields are always
checked.

The section size must be at least as large as the size carried within
the struct. To account for possible section padding, strict equality is
not required.

Bug: chromium:784427
Test: crashpad_snapshot_test CrashpadInfoSizes_ClientOptions/*.*
Change-Id: Ibb0690ca6ed5e7619d1278a68ba7e893d55f19fb
Reviewed-on: https://chromium-review.googlesource.com/767709
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2017-11-15 18:09:23 +00:00
Mark Mentovai
4f5524fc68 Fix Windows build after 81eced5192d9
81eced5192d9 added a a dependency on
crashpad_snapshot_test_simple_annotations to crashpad_snapshot_test, but
9609b7471676 renamed this target to crashpad_snapshot_test_annotations.

I should have rebased onto HEAD, rebuilt, and retested before landing.
Bad developer! No candy. 🎃

Change-Id: I8fcd1020d8bd4ee163afa555ae6e815325485024
Reviewed-on: https://chromium-review.googlesource.com/748814
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2017-11-01 17:02:27 +00:00
Mark Mentovai
81eced5192 snapshot: Specify test dependencies properly
Two dependency targets were missing from crashpad_snapshot_test.

Change-Id: I9efba73639e529313d4aa49df5e68bb5117cf95a
Reviewed-on: https://chromium-review.googlesource.com/746121
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
2017-11-01 16:27:55 +00:00
Robert Sesek
9609b74716 Expand the PEImageAnnotationsReader to read Annotation objects.
Nothing currently directs the handler to read these Annotation objects
from the target process, so they will not be read by Crashpad nor appear
in the minidump.

Bug: crashpad:192
Change-Id: I1eb1e9f42282c07e37d335631f0cc6083ef28a89
Reviewed-on: https://chromium-review.googlesource.com/726501
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-10-31 22:40:38 +00:00
Dave Bort
9e07a7148c Move linux/elf files to snapshot/elf
A step towards making these files usable by non-Linux systems.

Bug: crashpad:196
Change-Id: I1dc4304b1376a3a5e45228cf40b23f0367d3efa8
Reviewed-on: https://chromium-review.googlesource.com/685404
Commit-Queue: Dave Bort <dbort@google.com>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-10-02 21:54:34 +00:00
Joshua Peraza
b953388b95 Add SystemSnapshotLinux
Bug: crashpad:30
Change-Id: Ic1162c6637708492a5a9903a221cdd9266d3fd97
Reviewed-on: https://chromium-review.googlesource.com/601028
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-08-08 22:31:46 +00:00
Joshua Peraza
edf4dde8ae linux: Add ExceptionSnapshotLinux
Bug: crashpad:30
Change-Id: I450d53a89af2995c0fd13b31821360e781fe015a
Reviewed-on: https://chromium-review.googlesource.com/589747
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-08-02 02:29:51 +00:00
Joshua Peraza
6b5f139d88 linux: Add ProcessReader
ProcessReader is responsible for collecting information needed to build
a snapshot of the target process, independent of the Snapshot
interface. This CL includes implementation and tests for collecting
thread information, but does not yet collect module information.

Bug: crashpad:30
Change-Id: I911f155c953129a5fa8c031e923c0de2bd740ce0
Reviewed-on: https://chromium-review.googlesource.com/488162
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-07-19 18:16:09 +00:00
Joshua Peraza
041a50d75c linux: Add DebugRendezvous to read dynamic linker data structures
Dynamic linkers use `struct r_debug` and `struct link_map` (defined in
`<link.h>`) to communicate lists of loaded modules to debuggers.

Bug: crashpad:30
Change-Id: Id903a1c199288dd85c34e38710cdb4c6b5fedb5b
Reviewed-on: https://chromium-review.googlesource.com/534853
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-07-14 19:07:05 +00:00
Joshua Peraza
4224be41d7 linux: Add ElfImageReader to read ELF images via ProcessMemory
Bug: crashpad:30
Change-Id: Id2a6a1868103b0f4374816e58aab365a977b010d
Reviewed-on: https://chromium-review.googlesource.com/508836
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
2017-07-06 16:51:29 +00:00
Mark Mentovai
f37b382687 linux/android: Reenable util test, and enable snapshot test
107fb7631788 added the snapshot library as a dependency of
crashpad_util_test. Most of snapshot has not yet been ported to Linux or
Android. snapshot/capture_memory.cc only supports x86 and x86_64, and
will #error on other CPUs. We don’t build for other CPUs on Mac or
Windows, but we do for Android.

To make it easy to run crashpad_util_test on non-x86 again,
conditionally remove capture_memory.cc on Linux and Android.

crashpad_snapshot_test can be enabled for Linux and Android too by
disabling the CrashpadInfoClientOptions tests which require OS support.
There’s not much left in crashpad_snapshot_test currently for Linux
except for CPUContextX86 and ProcessSnapshotMinidump.EmptyFile, but both
pass.

Bug: crashpad:30
Change-Id: Ic19a79932072710c69a296bc0156cbe5656b8cb3
Reviewed-on: https://chromium-review.googlesource.com/549116
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2017-06-27 14:23:14 +00:00
Mark Mentovai
14138936b5 test: Compare ProcessInfo::Arguments() to main()’s argc/argv on POSIX
Previously on macOS, the test used an OS-specific library function to
recover the original argc and argv. On Linux/Android, it essentially
reimplemented the very code it was testing, which didn’t make for a very
good test. The new approach is to save argc and argv in main() and base
the comparison on that.

Bug: crashpad:30
Test: crashpad_util_test ProcessInfo.*, crashpad_test_test MainArguments.*
Change-Id: I578abed3b04ae10a22f79a193bbb8b6589276c97
Reviewed-on: https://chromium-review.googlesource.com/456798
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2017-03-20 17:05:30 +00:00
Scott Graham
7217cc0a8f Support client-specified extra memory ranges
Change-Id: I378e2513a4894fb1548445b660bb3db86e281572
Reviewed-on: https://chromium-review.googlesource.com/329564
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-02-29 22:16:13 +00:00
Patrick Monette
4794225f22 Adding an API to read module annotations in snapshot.gyp
Kasko needs a way to read crash keys from out of process. This API
reuses the functionality of PEImageAnnotationsReader.

Change-Id: I2f3bbc358212e6f50235183e9dbb4e5a2cf989cf

This is a reupload of https://codereview.chromium.org/1586433003/ but
for gerrit.

Change-Id: I2f3bbc358212e6f50235183e9dbb4e5a2cf989cf
Reviewed-on: https://chromium-review.googlesource.com/322550
Reviewed-by: Scott Graham <scottmg@chromium.org>
Tested-by: Scott Graham <scottmg@chromium.org>
Reviewed-by: Scott Graham <scottmg@google.com>
2016-01-18 20:35:42 +00:00
Scott Graham
019a0cec8b win: Write memory map info as MINIDUMP_MEMORY_INFO[_LIST]
Makes !vprot work in windbg, e.g.

0:000> !vprot 0x970000
BaseAddress:       00970000
AllocationBase:    00970000
AllocationProtect: 00000004  PAGE_READWRITE
RegionSize:        00001000
State:             00001000  MEM_COMMIT
Protect:           00000001  PAGE_NOACCESS
Type:              00020000  MEM_PRIVATE

...

0:000> !vprot 0x97a000
BaseAddress:       0097a000
AllocationBase:    00970000
AllocationProtect: 00000004  PAGE_READWRITE
RegionSize:        00001000
State:             00001000  MEM_COMMIT
Protect:           00000140  PAGE_EXECUTE_READWRITE + PAGE_GUARD
Type:              00020000  MEM_PRIVATE

Follows https://codereview.chromium.org/1377133006.

R=mark@chromium.org
BUG=crashpad:20, crashpad:46

Review URL: https://codereview.chromium.org/1379873005 .
2015-10-13 13:15:44 -07:00
Scott Graham
475ac81cce win: Implement CRASHPAD_SIMULATE_CRASH()
Windows requires the connection to the handler to do anything, so it
can't really be implemented or tested without CrashpadClient and the
connection machinery.

R=mark@chromium.org
BUG=crashpad:53

Review URL: https://codereview.chromium.org/1356383002 .
2015-09-25 13:45:32 -07:00
Scott Graham
bd9bc07625 win: Make reading CrashpadInfo work across bitness
R=mark@chromium.org
BUG=crashpad:50

Review URL: https://codereview.chromium.org/1355503005 .
2015-09-22 10:37:11 -07:00
Scott Graham
d1d341c719 win: Fix always-rebuild of crashpad_snapshot_test_image_reader_module.dll
Ninja assumes all DLLs will have an import library generated (caused
when there are any exports), but because this DLL is so simple, it does
not. This makes ninja think that the target is always dirty and so it
rebuilds it on every build. Fix this by telling ninja not to expect an
import library.

R=mark@chromium.org
BUG=crashpad:1

Review URL: https://codereview.chromium.org/1346253003 .
2015-09-21 10:53:27 -07:00
Scott Graham
4a34a3dd89 win: Make reading NT_IMAGE_HEADERS work cross-bitness
Factor out some test launching code used in cross-bitness tests.

R=mark@chromium.org
BUG=crashpad:50

Review URL: https://codereview.chromium.org/1352323002 .
2015-09-20 11:16:31 -07:00
Scott Graham
bf556829d9 win: support x64 reading x86 (wow64)
Removes the bitness-specific targets in favour of pulling binaries from
the other build directory. This is to avoid the added complexity of
duplicating all the targets for the x86 in x64 build.

Overall, mostly templatizing more functions to support the
wow64-flavoured structures. The only additional functionality required
is reading the x86 TEB that's chained from the x64 TEB when running
as WOW64.

The crashing child test was switched to a manual CreateProcess because
it needs to launch a binary other than itself.

R=mark@chromium.org
BUG=crashpad:50

Review URL: https://codereview.chromium.org/1349313003 .
2015-09-18 16:06:05 -07:00
Scott Graham
6978bf7646 win: Crash handler server
This replaces the registration server, and adds dispatch to a delegate
on crash requests.

(As you are already aware) we went around in circles on trying to come
up with a slightly-too-fancy threading design. All of them seemed to
have problems when it comes to out of order events, and orderly
shutdown, so I've gone back to something not-too-fancy.

Two named pipe instances (that clients connect to) are created. These
are used only for registration (which should take <1ms), so 2 should be
sufficient to avoid any waits. When a client registers, we duplicate
an event to it, which is used to signal when it wants a dump taken.

The server registers threadpool waits on that event, and also on the
process handle (which will be signalled when the client process exits).
These requests (in particular the taking of the dump) are serviced
on the threadpool, which avoids us needing to manage those threads,
but still allows parallelism in taking dumps. On process termination,
we use an IO Completion Port to post a message back to the main thread
to request cleanup. This complexity is necessary so that we can
unregister the threadpool waits without being on the threadpool, which
we need to do synchronously so that we can be sure that no further
callbacks will execute (and expect to have the client data around
still).

In a followup, I will readd support for DumpWithoutCrashing -- I don't
think it will be too difficult now that we have an orderly way to
clean up client records in the server.

R=cpu@chromium.org, mark@chromium.org, jschuh@chromium.org
BUG=crashpad:1,crashpad:45

Review URL: https://codereview.chromium.org/1301853002 .
2015-09-03 11:06:17 -07:00
Scott Graham
3ef04d14f2 Implement ModuleSnapshotWin::UUID
Reads CodeView PDB GUID from Debug Directory of PE header.

R=mark@chromium.org
BUG=crashpad:1

Review URL: https://codereview.chromium.org/1311003003 .
2015-09-01 09:32:09 -07:00
Scott Graham
a691448ffb win: Implement exception snapshot
Refactor some of the NT internals helpers and cpu_context to share
between the thread and exception snapshot code.

Add test that runs crashing child and validates the exception in the
snapshot.

R=mark@chromium.org, cpu@chromium.org, rsesek@chromium.org
BUG=crashpad:1

Review URL: https://codereview.chromium.org/1126413008 .
2015-08-18 12:25:19 -07:00
Mark Mentovai
6083a2706d Recognize crashreporter_annotations_t version 5 found on OS X 10.11.
The system’s crashreporter_annotations_t structure was always present
as version 4 since Mac OS X 10.7. In OS X 10.11, it is now present as
version 5. It has also grown from 56 to 64 bytes per otool examination
of CoreFoundation’s __DATA,__crash_info section. The extra 8 bytes are
presumed to be a new field at the end of the structure, although this
is not confirmed.

The existing MachOImageAnnotationsReader.CrashAbort test only validated
that the “message” field in crashreporter_annotations_t was recovered
correctly, but
MachOImageAnnotationsReader::ReadCrashReporterClientAnnotations() also
recovers the “message2” field. A new test,
MachOImageAnnotationsReader.CrashModuleInitialization, is added to
ensure that the “messgae2” field can be recovered properly.

This change will resolve warnings such as:
[pid:tid:yyyymmdd,hhmmss.uuuuuu:WARNING
mach_o_image_annotations_reader.cc:82] unexpected crash info version 5
in
/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation

BUG=crashpad:40
TEST=crashpad_snapshot_test MachOImageAnnotationsReader.CrashAbort,
     MachOImageAnnotationsReader.CrashModuleInitialization

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1277513003 .
2015-08-07 13:59:45 -04:00
Mark Mentovai
5e8e72f91c Don’t use DYLD_INSERT_LIBRARIES with a system executable.
OS X 10.11 introduces System Integrity Protection. One facet of that
forbids code injection into system executables. A Crashpad test checks
that information can be recovered from dyld in early-launch crashes by
requesting dyld load a nonexistent library with DYLD_INSERT_LIBRARIES.
The executable was meaningless but a system-provided executable,
/usr/bin/true, was used for convenience.

This test hung on OS X 10.11 because DYLD_INSERT_LIBRARIES was ignored
for the system executable, and no crash occurred. The test waited for a
crash that would never come.

A custom no-op executable, crashpad_snapshot_test_no_op, is provided as
an executable that does work with DYLD_INSERT_LIBRARIES.

BUG=crashpad:41
TEST=crashpad_snapshot_test MachOImageAnnotationsReader.CrashDyld
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1276553005 .
2015-08-05 18:24:53 -04:00
Scott Graham
58df54fffb win: Retrieve "simple map" annotations from modules
Follows https://codereview.chromium.org/1126273003/.

R=rsesek@chromium.org, cpu@chromium.org
TBR=mark@chromium.org
BUG=crashpad:1

Review URL: https://codereview.chromium.org/1138923004
2015-05-28 14:41:32 -07:00
Scott Graham
69d135acda win: make CrashpadInfo retrievable
The main goal was to get the beginnings of module iteration and retrieval
of CrashpadInfo in snapshot. The main change for that is to move
crashpad_info_client_options[_test] down out of mac/.

This also requires adding some of the supporting code of snapshot in
ProcessReaderWin, ProcessSnapshotWin, and ModuleSnapshotWin. These are
partially copied from Mac or stubbed out with lots of TODO annotations.
This is a bit unfortunate, but seemed like the most productive way to
make progress incrementally. That is, it's mostly placeholder at the
moment, but hopefully has the right shape for things to come.

R=mark@chromium.org
BUG=crashpad:1

Review URL: https://codereview.chromium.org/1052813002
2015-05-01 13:48:23 -07:00
Mark Mentovai
809ea8158d test: Move util/test to its own top-level directory, test.
After 9e79ea1da719, it no longer makes sense for crashpad_util_test_lib
to “hide” in util/util_test.gyp. All of util/test is moved to its own
top-level directory, test, which all other test code is allowed to
depend on. test, too, is allowed to depend on all other non-test code.

In a future change, when crashpad_util_test_lib gains a dependency on
crashpad_client, it won’t look so weird for something in util (even
though it’s in util/test) to depend on something in client, because the
thing that needs to depend on client will live in test, not util.

BUG=crashpad:33
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1051533002
2015-03-31 17:44:14 -04:00
Mark Mentovai
9e79ea1da7 Split *_test.gyp from *.gyp.
In a future change, crashpad_util_test_lib will gain a dependency on
crashpad_client. This would violate GYP’s prohibition on circular
dependencies between .gyp files, although there would be no circular
relationship between the targets themselves. To overcome this problem,
all test-related targets are moved into their own first-class .gyp
files.

BUG=crashpad:33
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1045173004
2015-03-31 17:06:28 -04:00