Rather than having the 64-bit build assume that it lives in
out\{Debug,Release}_x64 and that it can find 32-bit build output in
out\{Debug,Release}, require the location of 32-bit build output to be
provided explicitly via the CRASHPAD_TEST_32_BIT_OUTPUT environment
variable. If this variable is not set, 64-bit tests that require 32-bit
test build output will dynamically disable themselves at runtime.
In order for this to work, a new DISABLED_TEST() macro is added to
support dynamically disabled tests. gtest does not have its own
first-class support for this
(https://groups.google.com/d/topic/googletestframework/Nwh3u7YFuN4,
https://github.com/google/googletest/issues/490) so this local solution
is used instead.
For tests via Crashpad’s own build\run_tests.py, which is how Crashpad’s
own buildbots and trybots invoke tests, CRASHPAD_TEST_32_BIT_OUTPUT is
set to a locaton compatible with the paths expected for the GYP-based
build. No test coverage is lost on Crashpad’s own buildbots and trybots.
For Crashpad tests in Chromium’s buildbots and trybots, this environment
variable will not be set, causing these tests to be dynamically
disabled.
Bug: crashpad:203, chromium:743139, chromium:777924
Change-Id: I3c0de2bf4f835e13ed5a4adda5760d6fed508126
Reviewed-on: https://chromium-review.googlesource.com/739795
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
There’s no reason for ProcessReader to own its ProcessMemoryLinux via
std::unique_ptr<>.
This was discovered in a trunk Clang build, during which a
-Wdelete-non-virtual-dtor warning was produced (since Clang r312167).
The warning is not produced by earlier Clang versions or by GCC because
the “delete” happens in a system header, <memory>, when performed by
std::unique_ptr<>. Although ownership via std::unique_ptr<> is no longer
used, ProcessMemoryLinux is marked “final” because it ought to be.
In file included from ../../snapshot/linux/process_reader.cc:15:
In file included from ../../snapshot/linux/process_reader.h:21:
In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.2.0/../../include/c++/7.2.0/memory:80:
/usr/bin/../lib/gcc/x86_64-linux-gnu/7.2.0/../../include/c++/7.2.0/bits/unique_ptr.h:78:2: error: delete called on non-final 'crashpad::ProcessMemoryLinux' that has virtual functions but non-virtual destructor [-Werror,-Wdelete-non-virtual-dtor]
delete __ptr;
^
/usr/bin/../lib/gcc/x86_64-linux-gnu/7.2.0/../../include/c++/7.2.0/bits/unique_ptr.h:268:4: note: in instantiation of member function 'std::default_delete<crashpad::ProcessMemoryLinux>::operator()' requested here
get_deleter()(__ptr);
^
../../snapshot/linux/process_reader.cc:169:16: note: in instantiation of member function 'std::unique_ptr<crashpad::ProcessMemoryLinux, std::default_delete<crashpad::ProcessMemoryLinux> >::~unique_ptr' requested here
ProcessReader::ProcessReader()
^
1 error generated.
Change-Id: Ibe9671db429262aca12bbfdf457c8f72cad2f358
Reviewed-on: https://chromium-review.googlesource.com/738530
Reviewed-by: Dave Bort <dbort@google.com>
Commit-Queue: Mark Mentovai <mark@chromium.org>
P0012R1, accepted into C++17, makes a function’s “noexcept” (or
“throw()”) specification part of its signature. GCC 7.2 provides a
warning, -Wnoexcept-type, that is triggered when a function pointer type
with an exception specification is used in pre-C++17 code in such a way
as to pose an ABI incompatibility with C++17 code.
https://gcc.gnu.org/onlinedocs/gcc-7.2.0/gcc/C_002b_002b-Dialect-Options.html#index-Wnoexcept-type
Warnings are of the form:
In file included from ../../util/misc/from_pointer_cast_test.cc:15:0:
../../util/misc/from_pointer_cast.h:64:1: error: mangled name for ‘typename std::enable_if<(std::is_pointer<From>::value && std::is_pointer<_Tp>::value), To>::type crashpad::FromPointerCast(From) [with To = const volatile void*; From = void* (*)(long unsigned int) throw ()]’ will change in C++17 because the exception specification is part of a function type [-Werror=noexcept-type]
FromPointerCast(From from) {
^~~~~~~~~~~~~~~
../../util/misc/from_pointer_cast.h:64:1: error: mangled name for ‘typename std::enable_if<(std::is_pointer<From>::value && std::is_pointer<_Tp>::value), To>::type crashpad::FromPointerCast(From) [with To = volatile void*; From = void* (*)(long unsigned int) throw ()]’ will change in C++17 because the exception specification is part of a function type [-Werror=noexcept-type]
In Crashpad, this warning is triggered by the two FromPointerCast<>()
variants that accept function pointer “From” arguments. This occurs when
using glibc as the standard C library, since glibc declares its
functions as “throw()”. FromPointerCast<>() is used with pointers to
glibc functions such as malloc() and getpid().
The warning is disabled for the FromPointerCast<>() variants that would
trigger it. The warning is not useful or actionable in this internal
Crashpad code where ABI changes due to language version (including
mangling changes) are not a concern.
Clang 4.0 has the similar -Wc++1z-compat-mangling option (also available
as -Wc++17-compat-mangling and the GCC-compatible -Wnoexcept-type in
Clang 5.0) but it is not triggered by this pattern.
Change-Id: Id293db3954be415f67a55476ca72bfb7d399aa3b
Reviewed-on: https://chromium-review.googlesource.com/738292
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This reverts 55133d332b6c and adds a broken dummy SafeTerminateProcess()
for cross builds instead. It’s similar to 2f4516f93838, which was for
CaptureContext().
This upstreams
af5f31ed61
(slightly modified).
The dummy implementation in the “broken” file affords no protection
against third-party code patching TerminateProcess() badly. The “broken”
file is not used by Crashpad anywhere at all, and is only used by
Crashpad in Chromium during a cross build targeting Windows without the
benefit of Microsoft’s ml.exe assembler. Strictly speaking, this file
does not need to be checked in to the Crashpad repository, but since
Chromium needs it to unblock its not-production-ready cross build for
Windows, it’s being landed here to avoid Chromium’s copy of Crashpad
appearing as modified or “dirty” relative to this upstream copy.
Bug: chromium:762167, chromium:777924
Change-Id: Iba68c0cab142fbe9541ea254a9a856b8263e4c70
Reviewed-on: https://chromium-review.googlesource.com/735078
Reviewed-by: Mark Mentovai <mark@chromium.org>
An #include was missing from 59c5d848e5c5.
Change-Id: Ib0074aefbc8dc231a097c2edd3ef3047f5cff32e
Reviewed-on: https://chromium-review.googlesource.com/734232
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
While the kernel formats device major and minor numbers as %02x:%02x,
they are not restricted to 8 bits apiece. Crashpad was requiring that
the hexadecimal representations be exactly two characters, rather than
at least two characters.
The proper way to reconstruct a dev_t from major and minor numbers in
user space is to use makedev() from <sys/sysmacros.h>. MKDEV() from
<linux/kdev_t.h> interfaces with an older (pre-Linux 2.6) format which
actually did use 8-bit major and minor numbers. makedev() places the
major number at bits 8-19, and splits the minor number into two groups
at bits 0-7 and 20-31. This is the correct user space view of device
numbers. (Note that this is distinct from the kernel’s view: the kernel
uses MKDEV() from a distinct internal <linux/kdev_t.h> which places the
minor number at bits 0-19 and the major number at bits 20-31.)
Bionic for 32-bit platforms uses a 32-bit user space dev_t while a
64-bit version is used elsewhere, and a comment in Bionic’s
<sys/types.h> calls this a “historical accident”. However, due to the
kernel’s use of only 32 bits for device numbers, this accident does not
have any ill effect.
Bug: crashpad:30
Test: crashpad_util_test, crashpad_snapshot_test
Change-Id: Ic343454393d7399f598f9eba169a9e5f5630e601
Reviewed-on: https://chromium-review.googlesource.com/733863
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
This upstreams
fc1ac734b0
(slightly modified).
This dummy implementation is not used by Crashpad anywhere at all, and
is only used by Crashpad in Chromium during a cross build targeting
Windows without the benefit of Microsoft’s ml.exe/ml64.exe assembler.
Strictly speaking, this file does not need to be checked in to the
Crashpad repository, but since Chromium needs it to unblock its
not-production-ready cross build for Windows, it’s being landed here to
avoid Chromium’s copy of Crashpad appearing as modified or “dirty”
relative to this upstream copy. (Even though this file is really dirty.)
Bug: chromium:762167
Change-Id: Ibfdc316c1f5fe81d4b3a1d86f4032adccac467e5
Reviewed-on: https://chromium-review.googlesource.com/734102
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This is a step towards a database which gives out FileReaders in Report
objects instead of FilePaths.
Change-Id: I59704da65fc5521e5d47019416bf962c215d13bc
Reviewed-on: https://chromium-review.googlesource.com/721978
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This change also adds functions to create directories, remove files and
directories, and check for the existence of files and directories.
Change-Id: I62b78219ae2b277d6976d2d90ec86fcabd0ef073
Reviewed-on: https://chromium-review.googlesource.com/696132
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Only a Linux implementation for now, but similar code for other
OSes can move behind it in the future.
Bug: crashpad:196
Change-Id: I05966db1599a9cac3146d2a3d964e7ad8629d616
Reviewed-on: https://chromium-review.googlesource.com/685408
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Dave Bort <dbort@google.com>
The Crashpad representation of the TEB struct had an incorrect PVOID
reserved of len 397. This should be 402 once we calculate that the other
members occupy 40/80 (32 vs 64) bytes.
Wine has a well documented copy
4df0162caf/include/winternl.h (L309)
that shows the offsets TlsSlots should be at. This patch makes that
change. TlsSlots is now at offset 3600 on 32-bit and offset 5248 on
64-bit.
Change-Id: I4ea4c44b1e49d3ea02d433f386f164703a373dab
Reviewed-on: https://chromium-review.googlesource.com/717040
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
This corresponds to Windows 10 version 1709 (Fall Creators Update,
“Redstone 3”).
While compiling util/win/nt_internals.cc:
…\crashpad\crashpad\util\win\nt_internals.cc(22): error C2371: 'CLIENT_ID': redefinition; different basic types
c:\program files (x86)\windows kits\10\include\10.0.16299.0\um\winternl.h(83): note: see declaration of 'CLIENT_ID'
The CLIENT_ID structure, which should have been part of the SDK to begin
with, has been added. Provide a compatible definition in <winternl.h>.
Bug: chromium:773476
Change-Id: Iafc77f8cffd06d1194fc909bad587f1ffd1687a2
Reviewed-on: https://chromium-review.googlesource.com/711415
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
A step towards making these files usable by non-Linux systems.
Bug: crashpad:196
Change-Id: Iaa8bfae1c325735c320e502698a61e4851777649
Reviewed-on: https://chromium-review.googlesource.com/685407
Commit-Queue: Dave Bort <dbort@google.com>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
A step towards making these files usable by non-Linux systems.
Bug: crashpad:196
Change-Id: I71323b29e46208b3992055722e4622d79409c44c
Reviewed-on: https://chromium-review.googlesource.com/685406
Commit-Queue: Dave Bort <dbort@google.com>
Reviewed-by: Mark Mentovai <mark@chromium.org>
readdir_r() is a thread-safe version of readdir(), although readdir() is
not particularly thread-unsafe with most usage. The dirent* returned by
readdir() can only be invalidated by a subsequent readdir() or
closedir() on the same DIR*. In typical usage, where a returned dirent*
is used exclusively within a loop around readdir() and is not expected
to outlive that loop, there are no lifetime or thread-safety issues with
the use of readdir().
readdir_r() may be harmful in certain situations because its buffer is
not explicitly sized, and attempts to provide a suitably sized buffer
dynamically (which, incidentally, our code did not do) are subject to a
race condition.
https://elliotth.blogspot.com/2012/10/how-not-to-use-readdirr3.htmlhttps://womble.decadent.org.uk/readdir_r-advisory.html
glibc has already deprecated readdir_r(), and all Linux (including
Android) code was already using readdir(). This change eliminates
variant codepaths. It delegates buffer sizing (which we weren’t doing
correctly) to the C library, which also has more options at its disposal
to avoid races in sizing that buffer.
Change-Id: I4fca8948454116360180ad0017f226d06727ef81
Reviewed-on: https://chromium-review.googlesource.com/705756
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
|ranges| is a coalesced list of committed and accessible memory ranges
trimmed to reflect only those that overlap |range|. |range| is only
fully unreadable if |ranges| is empty. If |ranges| contains more than
one element, it indicates that |range| is sparse (since |ranges| is
coalesced, there must be a “hole”). This should be treated as partially
unreadable, the same as when |ranges[0]| doesn’t begin or end where
|range| does.
Test: self_destroying_test_program.exe (via end_to_end_test.py)
Change-Id: I55fc2b201089113f2b07395e352704b99d212801
Reviewed-on: https://chromium-review.googlesource.com/702535
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
In the 64-bit version of the structure, padding is needed between
ShowWindowFlags and WindowTitle.
The CurrentDirectores (yes, that’s how it’s spelled) members would have
been interpreted incorrectly because STRING was defined incorrectly. The
length fields are USHORT, not DWORD. In the 64-bit version of the
structure, a padding member ensured that the structure was at least the
correct size. In the 32-bit version of the structure, this caused the
structure size to be inflated, so all but the first CurrentDirectores
element and any struct member that followed would appear at incorrect
offsets, and the overall struct size being read was larger than
appropriate.
This resolves crashpad_handler logging (usually) three errors while
handling a 64-bit process crash, such as:
[pid:tid:yyyymmdd,hhmmss.mmm:ERROR process_info.cc:632] range at
0x780f24de00000000, size 0x275 fully unreadable
[pid:tid:yyyymmdd,hhmmss.mmm:ERROR process_info.cc:632] range at
0x780f24fe00000000, size 0x275 fully unreadable
[pid:tid:yyyymmdd,hhmmss.mmm:ERROR process_info.cc:632] range at 0x0,
size 0x275 fully unreadable
Bug: crashpad:198
Test: end_to_end_test.py
Change-Id: I1655101de01cf46b4b50eda45a11f8d0f3bca8b3
Reviewed-on: https://chromium-review.googlesource.com/701736
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
hanging_program.exe is used by crash_other_program.exe, which is in turn
used by end_to_end_test.py. It hangs by loading loader_lock_dll.dll,
which squats in its entry point function while the loader lock is held.
hanging_program.exe needs to do some work in its Thread1() before the
loader lock is taken (a SetThreadPriority() call), and needs to do some
work in its main thread once the loader lock is held (it needs to signal
crash_other_program.exe that it’s successfully wedged itself).
Previously, proper synchronization was not provided. A 1-second Sleep()
was used to wait for the loader lock to be taken. Thread1() pre-work was
only achieved before the loader lock was taken by sheer luck. Things
didn’t always work out so nicely.
This uses an event handle to provide synchronization. An environment
variable is used to pass the handle to loader_lock_dll.dll, because
there aren’t many better options available. This eliminates both flake
and the unnecessary 1-second delay in hanging_program.exe, and since
this program runs twice during end_to_end_test.py, it improves that
test’s runtime by 2 seconds.
Bug: crashpad:197
Test: end_to_end_test.py
Change-Id: Ib9883215ef96bed7571464cc68e09b6ab6310ae6
Reviewed-on: https://chromium-review.googlesource.com/700076
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
CrashpadClient::DumpAndCrashTargetProcess() suspends the target process
and injects a thread to raise an exception. The injected thread is not
suspended, and may proceed to the point that the system recognizes the
process as terminating by the time the overall process suspension is
lifted. Previously, if this happened, an extraneous error was logged for
the attempt to resume a terminating process.
This introduces “termination tolerance” to ScopedProcessSuspend, which
allows an object to be configured to ignore this error and not log any
messages when this condition is expected.
This resolves log messages such as this one, produced frequently during
calls to CrashpadClient::DumpAndCrashTargetProcess() (including in
end_to_end_test.py):
> [pid:tid:yyyymmdd,hhmmss.mmm:ERROR scoped_process_suspend.cc:39]
> NtResumeProcess: An attempt was made to access an exiting process.
> (0xc000010a)
0xc000010a = STATUS_PROCESS_IS_TERMINATING
Test: end_to_end_test.py
Change-Id: Iab4c50fb21adce5502080ad25a6f734ec566d65c
Reviewed-on: https://chromium-review.googlesource.com/700715
Commit-Queue: Mark Mentovai <mark@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
OS_LINUX is not defined on Android. Chromium made this call and we can’t
revisit it here and now.
Change-Id: I70fd6ac35ba9731e2fd06792bf8cae332e2b360c
Reviewed-on: https://chromium-review.googlesource.com/700655
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
During crash report upload, the client now provides the product
name, version, and client id via URL parameters to the crash
reporting service.
Also added percent-encoding function and a test.
Change-Id: I62f3a646d4ab6029543bd80938b79de28b1f20e4
Test: crashpad_util_test URLEncode.Empty
Test: crashpad_util_test URLEncode.ReservedCharacters
Test: crashpad_util_test URLEncode.UnreservedCharacters
Test: crashpad_util_test URLEncode.SimpleAddress
Reviewed-on: https://chromium-review.googlesource.com/493917
Commit-Queue: Roman Margold <rmargold@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This will allow sharing code that is currently hard-coded to use (e.g.)
LinuxVMAddress or mach_vm_size_t.
Change-Id: I7bf20600c73d4ec7d2a029754f9043a236a38e5a
Reviewed-on: https://chromium-review.googlesource.com/677142
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Dave Bort <dbort@google.com>
1) Add PtraceConnection which serves as the base class for specific
types of connections Crashpad uses to trace processes.
2) Add DirectPtraceConnection which is used when the handler process
has `ptrace` capabilities for the target process.
3) Move `ptrace` logic into Ptracer. This class isolates `ptrace` call
logic for use by various PtraceConnection implementations.
Bug: crashpad:30
Change-Id: I98083134a9f7d9f085e4cc816d2b85ffd6d73162
Reviewed-on: https://chromium-review.googlesource.com/671659
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
To enable clang-cl's printf format string mismatch checking, a few
mismatch errors need to be fixed where DWORD (unsigned long) is printed
with %u, %d or %x (an 'l' is needed).
Change-Id: I2cbfafe823a186bfe3a555aec3a7ca03e85466f8
Reviewed-on: https://chromium-review.googlesource.com/598651
Commit-Queue: Xi Cheng <chengx@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
This is essentially based on a search for “^const .*=”.
Change-Id: I9332c1f0cf7c891ba1ae373dc537f700f9a1d956
Reviewed-on: https://chromium-review.googlesource.com/585452
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
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>
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>
Debug registers are currently initialized to 0 until methods are added
to ThreadInfo to collect them.
Bug: crashpad:30
Change-Id: Ic1aab1151dcd4bed48eca8a60b76fb0d8d613418
Reviewed-on: https://chromium-review.googlesource.com/579889
Reviewed-by: Mark Mentovai <mark@chromium.org>
Linux supports TLS on x86 by allocating slots in the GDT, accessible
via the system calls get/set_thread_area. This allows segment
registers (%gs on x86) to be used to quickly access the TLS.
Previously, we used PTRACE_GETREGSET with the NT_386_TLS regset. This
"register set" provides access to the subarray of the GDT used for TLS.
However, there are multiple slots provided and we don't know which one
is being used by the threading library for the current thread's TLS.
Previously, we were just using the first one, which worked for x86 on
64-bit kernels, but not 32-bit kernels. On 32-bit kernels, the first
slot ended up pointing to the TLS of the main thread.
The authoritative index of the current thread's TLS in the GDT is
given by bits 3-15 of %gs. However, this index cannot be used with
PTRACE_GETREGSET+NT386_TLS because we don't know the location of the
TLS slots in the GDT. PTRACE_GET_THREAD_AREA, however, accepts an
index from the start of the GDT similarly to get/set_thread_area.
Bug: crashpad:30
Change-Id: Ie6dfbdd088c6816fad409812a1a97037d4b38fd7
Reviewed-on: https://chromium-review.googlesource.com/575318
Reviewed-by: Mark Mentovai <mark@chromium.org>
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>
ELF executables and libraries may be loaded into memory in several
mappings, possibly with holes containing anonymous mappings
or mappings of other files. This method takes an input mapping and
attempts to find the mapping for file offset 0 of the same file.
Bug: crashpad:30
Change-Id: I79abf060b015d58ef0eba54a399a74315d7d2d77
Reviewed-on: https://chromium-review.googlesource.com/565223
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Although GCC will silently accept larger alignments with
__attribute__((aligned())), it warn on alignas() with an alignment
larger than the target’s supported maximum. 8c35d92ae403 switched to
alignas() where possible.
The maxima are at least 128 on x86, x86_64, and arm64, and 64 on arm, in
the common configurations, but may be even larger with certain features
such as AVX enabled. These are ultimately derived from BIGGEST_ALIGNMENT
in gcc/config/*/*.h.
One alignment request in a test specified 1024 as a big alignment
constraint, solely as a test that alignment worked correctly. For this,
it’s perfectly reasonable to limit the alignment request to what GCC
supports on the most constrained target we’ll encounter.
Test: crashapd_util_test AlignedAllocator.AlignedVector
Change-Id: I42af443f437e01228934ab34dc04983742f0ab3f
Reviewed-on: https://chromium-review.googlesource.com/550236
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
user_fxsr_struct is only used in traditional NDK headers. Unified
headers always use user_fpxregs_struct regardless of API level.
Bug: crashpad:30, b/63025548
Change-Id: Id9d350801e659673b136e6fb8c0cbbbeb6055c4b
Reviewed-on: https://chromium-review.googlesource.com/549376
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
