23 Commits

Author SHA1 Message Date
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
281be63d00 Standardize on static constexpr for arrays when possible
This uses “static” at function scope to avoid making local copies, even
in cases where the compiler can’t see that the local copy is
unnecessary. “constexpr” adds additional safety in that it prevents
global state from being initialized from any runtime dependencies, which
would be undesirable.

At namespace scope, “constexpr” is also used where appropriate.

For the most part, this was a mechanical transformation for things
matching '(^| )const [^=]*\['.

Similar transformations could be applied to non-arrays in some cases,
but there’s limited practical impact in most non-array cases relative to
arrays, there are far more use sites, and much more manual intervention
would be required.

Change-Id: I3513b739ee8b0be026f8285475cddc5f9cc81152
Reviewed-on: https://chromium-review.googlesource.com/583997
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
2017-07-25 17:40:51 +00:00
Scott Graham
0567536f86 win: Attempt to fix unloaded modules list by using RtlGetUnloadEventTraceEx
I haven't been able to reproduce this locally, but we see errors in
crash dumps where the unloaded module list consists of a number of
modules with invalid names and implausible addresses. My assumption is
that RTL_UNLOAD_EVENT_TRACE isn't correct for some OS levels. Instead of
trying to finesse and test that, use RtlGetUnloadEventTraceEx() instead
of RtlGetUnloadEventTrace(), which returns an element size. (This
function is Vista+ which is why it wasn't used the first time around.)

R=mark@chromium.org
BUG=chromium:620175

Change-Id: I4d7080a03623276f9c1c038d6e7329af70e4a64c
Reviewed-on: https://chromium-review.googlesource.com/421564
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-12-16 20:32:25 +00:00
Scott Graham
2d87606bb5 win: Start crashpad_handler by inheriting connection data to it
Previously, StartHandler() launched the handler process, then connected
over a pipe to register for crash handling. Instead, the initial client
can create and inherit handles to the handler and pass those handle
values and other data (addresses, etc.) on the command line.

This should improve startup time as there's no need to synchronize with
the process at startup, and allows avoiding a call to CreateProcess()
directly in StartHandler(), which is important for registration for
crash reporting from DllMain().

Incidentally adds new utility functions for string/number conversion and
string splitting.

Note: API change; UseHandler() is removed for all platforms.

BUG=chromium:567850,chromium:656800

Change-Id: I1602724183cb107f805f109674c53e95841b24fd
Reviewed-on: https://chromium-review.googlesource.com/400015
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-10-21 20:35:58 +00:00
Scott Graham
27aeb2c9da Upstream Chromium UMA integration
Unmodified from https://codereview.chromium.org/2308763002/ other than
to add empty arguments to test code (that doesn't build in Chrome).

Requires https://chromium-review.googlesource.com/c/386236/.

Rolls mini_chromium to include:
438bd4f4 Add stub of persistent_histogram_allocator.h

R=mark@chromium.org
BUG=crashpad:100

Change-Id: Ibc88338ae2fd40a5a4ade7ff098be2bc19511543
Reviewed-on: https://chromium-review.googlesource.com/386084
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-09-16 20:23:06 +00:00
Scott Graham
dbfcb5d032 win: Cap indirect memory gathering
Add a user-configurable cap on the amount of memory that is gathered by
dereferencing thread stacks. (SyzyAsan stores a tremendously large
number of pointers on the stack, so the dumps were ending up in the ~25M
range.)

Also reduce the range around pointers somewhat.

Change-Id: I6bce57d86bd2f6a796e1580c530909e089ec00ed
Reviewed-on: https://chromium-review.googlesource.com/338463
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-04-22 17:04:33 +00:00
Scott Graham
c307f94f19 Support custom streams in the minidump
BUG=crashpad:95

Change-Id: Iee956906651dfd56e0ae3d2bcec82daabdc97067
Reviewed-on: https://chromium-review.googlesource.com/329733
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-03-02 17:39:34 +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
Scott Graham
badfacccee win: Add support for capturing unloaded modules
R=mark@chromium.org
BUG=crashpad:89

Change-Id: Ib6a67147e538811168d68f14a457fdceab30c02e
Reviewed-on: https://chromium-review.googlesource.com/327231
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-02-18 00:55:38 +00:00
Scott Graham
feb3aa3923 win: Capture memory pointed to by the stack
Change-Id: Ide75475aa9c42edf36c3a709bfc7dfbfed68b0d3
Reviewed-on: https://chromium-review.googlesource.com/322261
Reviewed-by: Mark Mentovai <mark@chromium.org>
2016-01-29 18:13:19 +00:00
Scott Graham
417097b91f win: Better setting of DI for register capture test
The previous approach was nice for its simplicity, but unfortunately
didn't work when the compiler decided to do some of its confounded
"optimization".

R=mark@chromium.org
BUG=crashpad:86, chromium:571144

Review URL: https://codereview.chromium.org/1563273004 .
2016-01-10 13:32:20 -08:00
Scott Graham
5af9c42638 win: Capture some memory pointed at by context
R=mark@chromium.org
BUG=crashpad:86, chromium:571144

Review URL: https://codereview.chromium.org/1533183002 .
2016-01-08 17:24:04 -08:00
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
3e988865ad win: crashpad_handler should create its own pipe name in ephemeral mode
Allowing the client to create its own pipe name string caused a race
between client and server. Instead, in this mode, the server now creates
the pipe name along with a pipe, and returns it to its client via a
--handshake-handle. This guarantees that by the time the client gets the
pipe name, the server has already created it.

Ephemeral mode is now implied by --handshake-handle. The --persistent
option is gone. --persistent mode is enabled when using --pipe-name.

BUG=crashpad:69
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1432563003 .
2015-11-03 19:26:18 -05:00
Mark Mentovai
ee6fc23fb3 mac: Restart crashpad_handler from the initial client if it dies
BUG=crashpad:68
R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/1413033007 .
2015-11-03 19:13:48 -05:00
Mark Mentovai
7f939285de win: Rename CrashpadClient::SetHandler() to SetHandlerIPCPipe()
In https://codereview.chromium.org/1414533006/, I'm adding a few
Mac-specific SetHandler() variants, so it makes sense to name each
SetHandler() variant for what it does.

I'm also making it take a wstring argument, which seems like a more
natural fit for what it does. There should be fewer string conversions
this way.

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1406993008 .
2015-11-02 17:00:06 -05:00
Mark Mentovai
740c668e87 win: Implement CrashpadClient::StartHandler()
BUG=crashpad:69
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1428803006 .
2015-11-02 13:59:36 -05:00
Mark Mentovai
d075a9eb2e win: Add and use GET_FUNCTION() and GET_FUNCTION_REQUIRED()
These wrap the GetProcAddress(LoadLibrary(), …) idiom into macros that
are much less wordy.

TEST=crashpad_util_test GetFunction.GetFunction and all others
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1405323003 .
2015-10-19 14:32:07 -04:00
Scott Graham
d1e49bd221 Fix CRITICAL_SECTION test
I thought I had confirmed that this still allocated and ignored the flag
on older OSs, but I must have not had the PLOG active yet? I'm not sure
what I did. (I might try to blame VMware as it has an annoying habit of
caching old binaries when you use it's "Shared Folders" feature to point
at the dev machine's build dir.)

I confirmed that it does work on Win8 and Win10 but doesn't on Win XP
and Win 7.

R=mark@chromium.org
BUG=crashpad:52

Review URL: https://codereview.chromium.org/1405243002 .
2015-10-16 14:55:14 -07:00
Scott Graham
4893a9b76d win: Capture some CRITICAL_SECTION debugging data
Capture the memory for the loader lock (can be inspected by !cs), as
well as all locks that were created with .DebugInfo which can be viewed
with !locks.

e.g.

0:000> !cs ntdll!LdrpLoaderLock
-----------------------------------------
Critical section   = 0x778d6410 (ntdll!LdrpLoaderLock+0x0)
DebugInfo          = 0x778d6b6c
NOT LOCKED
LockSemaphore      = 0x0
SpinCount          = 0x04000000

0:000> !locks -v

CritSec ntdll!RtlpProcessHeapsListLock+0 at 778d7620
LockCount          NOT LOCKED
RecursionCount     0
OwningThread       0
EntryCount         0
ContentionCount    0

CritSec +7a0248 at 007a0248
LockCount          NOT LOCKED
RecursionCount     0
OwningThread       0
EntryCount         0
ContentionCount    0

CritSec crashy_program!g_critical_section_with_debug_info+0 at 01342c48
LockCount          NOT LOCKED
RecursionCount     0
OwningThread       0
EntryCount         0
ContentionCount    0

CritSec crashy_program!crashpad::`anonymous namespace'::g_test_critical_section+0 at 01342be0
WaiterWoken        No
LockCount          0
RecursionCount     1
OwningThread       34b8
EntryCount         0
ContentionCount    0
*** Locked

Scanned 4 critical sections

R=mark@chromium.org
BUG=crashpad:52

Review URL: https://codereview.chromium.org/1392093003 .
2015-10-15 13:18:08 -07:00
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
ecf3b37863 win: Save contents of TEBs allowing !teb and !gle to work in windbg
crashy_program's log looks something like this now:

0:000> .ecxr
eax=00000007 ebx=7f24e000 ecx=7f24d000 edx=00000000 esi=00497ec8 edi=00d39ca0
eip=00cf5d12 esp=001ffcd8 ebp=001ffcdc iopl=0         nv up ei ng nz ac po cy
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010293
crashy_program+0x5d12:
00cf5d12 ??              ???
0:000> !teb
TEB at 7f24d000
    ExceptionList:        001ff548
    StackBase:            00200000
    StackLimit:           001fd000
    SubSystemTib:         00000000
    FiberData:            00001e00
    ArbitraryUserPointer: 00000000
    Self:                 7f24d000
    EnvironmentPointer:   00000000
    ClientId:             00003658 . 00004630
    RpcHandle:            00000000
    Tls Storage:          7f24d02c
    PEB Address:          7f24e000
    LastErrorValue:       2
    LastStatusValue:      c000000f
    Count Owned Locks:    0
    HardErrorMode:        0
0:000> !gle
LastErrorValue: (Win32) 0x2 (2) - The system cannot find the file specified.
LastStatusValue: (NTSTATUS) 0xc000000f - {File Not Found}  The file %hs does not exist.

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

Review URL: https://codereview.chromium.org/1364803004 .
2015-10-01 14:04:49 -07:00
Scott Graham
5de461e8c8 Refactor handler/main for Windows, implement CrashHandlerExceptionServer
BUG=crashpad:1
R=mark@chromium.org

Review URL: https://codereview.chromium.org/1314093002 .
2015-09-03 13:31:19 -07:00