15 Commits

Author SHA1 Message Date
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
Bruce Dawson
1876c67497 Record memory near EIP/RIP first
Checking for code-corruption is an important process in crash analysis
so it is important to record code bytes first. This was already done for
ARM and other processors so this change just moves EIP/RIP to the top of
the list.

This is important in scenarios where only a small amount of extra memory
is recorded such as in the stable channel of Chrome.

Bug: 1339513
Change-Id: I26367214ee66795c81000a0487987a130f2ea23a
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3812374
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2022-08-09 14:56:02 +00:00
Alex Gough
d8567ffc53 Capture shadow stack region if available
Where shadow stacks are available, capture the entire shadow stack page
unconditionally.

Bug: 1250098
Change-Id: I5e2273c19b5f2d571195ff1252396df7dd70566a
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3493684
Commit-Queue: Alex Gough <ajgo@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
2022-05-17 03:59:48 +00:00
Alex Gough
9ef737a26d Captures shadow stack registers for x64 Windows contexts
Windows extended contexts must be allocated by InitializeContext2 and
may not be aligned. This means we cannot simply store a struct in
our thread snapshot object, but must instead store enough memory
and alias our struct onto this backing memory.

Note that shadow stack pointers are not yet recorded for the initial
exception - this cannot be determined using LocateXStateFeature in
the capturing process and will be added in a future CL by plumbing
through client messages when a crashed process requests a dump.

See crash/32bd2c53a252705c for an example dump with this baked into
chrome, that has passed through breakpad without breaking it. Local
testing shows this creates valid dumps when built into Chrome, but
that the referenced memory limits may need to be increased to allow
for ssp referenced memory to be included.

See "MANAGING STATE USING THE XSAVE FEATURE SET" Chapter 13 in the
Intel SDM[0]. Many of the offsets and sizes of the extended features
are provided by cpu specific values. We can access these in Windows
using the SDK, and transfer these to the saved extended context
which in turn is understandable by windbg.

Further information is available from AMD Ch. 18 "Shadow Stacks"[1].

    [0] https://software.intel.com/content/www/us/en/develop/download/intel-64-and-ia-32-architectures-sdm-combined-volumes-1-2a-2b-2c-2d-3a-3b-3c-3d-and-4.html.
    [1] https://www.amd.com/system/files/TechDocs/24593.pdf

Bug: 1250098
Change-Id: I4b13bcb023e9d5fba257044abfd7e251d66a9329
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3300992
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Alex Gough <ajgo@chromium.org>
2022-05-17 03:39:16 +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
Lei Zhang
d8f60c8112 Swap from base/stl_util.h to cxx17_backports.h.
Chromium moved base::size() to base/cxx17_backports.h, so do the same in
mini_chromium and update the users in Crashpad.

Roll mini_chromium to 2f06f83f to make the new base header available.

Bug: chromium:1210983
Change-Id: Ie3dc4c189dcdfcac030b95fe285f94abb29a27bf
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2917779
Commit-Queue: Lei Zhang <thestig@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2021-05-25 21:44:52 +00:00
Hans Wennborg
032f1aecc2 Include-what-you-use related to logging.h
Add direct includes for things provided transitively by logging.h
(or by other headers including logging.h).

This is in preparation for cleaning up unnecessary includes of
logging.h in header files (so if something depends on logging.h,
it needs include it explicitly), and for when Chromium's logging.h
no longer includes check.h, check_op.h, and notreached.h.

DEPS is also updated to roll mini_chromium to ae14a14ab4 which
includes these new header files.

Bug: chromium:1031540
Change-Id: I36f646d0a93854989dc602d0dc7139dd7a7b8621
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2250251
Commit-Queue: Hans Wennborg <hans@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2020-06-18 13:51:20 +00:00
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
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
Scott Graham
d8d03172c2 arm: Capture context around pc and registers
Includes mini_chromium DEPS roll of one change:
4e3b2c0 fuchsia: Make target flag apply to asm too

After this, the Fuchsia ARM64 build compiles.

Bug: crashpad:196
Change-Id: I1b749a2b2443303ad86122fbe5c9750300474d79
Reviewed-on: https://chromium-review.googlesource.com/925454
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Scott Graham <scottmg@chromium.org>
2018-02-20 15:18:40 +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
Scott Graham
a02ba24006 Convert from scoped_ptr to std::unique_ptr
Follows https://codereview.chromium.org/1911823002/ but fixes includes
that were messed up there.

Change-Id: Ic4bad7d095ee6f5a1c9f8ca2d11ac9e67d55a626
Reviewed-on: https://chromium-review.googlesource.com/340497
Reviewed-by: Robert Sesek <rsesek@chromium.org>
2016-04-25 19:16:26 +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
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