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>
filename_rules.gypi doesn’t treat Android as Linux, so Crashpad’s .gyp
files are peppered throughout with this custom filename rule. This broke
in 59c5d848e5c5 when FakePtraceConnection was introduced.
Bug: crashpad:30
Change-Id: I524d32887d243541634d9a0803c7f46afd6d45e6
Reviewed-on: https://chromium-review.googlesource.com/700425
Reviewed-by: Joshua Peraza <jperaza@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: I2497fd7e3bcb5390ae1e6ae22902ab6f56b59dff
Reviewed-on: https://chromium-review.googlesource.com/685405
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Dave Bort <dbort@google.com>
The binary crashpad_handler.com is used by crashpad_client_win_test.cc,
but is not currently built when building crashpad_client_test.
Bug: crashpad:
Change-Id: I7a440774e49be9e821bca57c154a67b968a4bfbd
Reviewed-on: https://chromium-review.googlesource.com/695832
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
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>
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>
Some versions of glibc (e.g., Debian GLIBC 2.24-11+deb9u1) do set a name
for the vdso mapping.
Change-Id: I342a55e95f649d5aaf1e35f1afab53d89f4ba0fc
Reviewed-on: https://chromium-review.googlesource.com/679858
Commit-Queue: Dave Bort <dbort@google.com>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
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>
Fixes the build for x86_64-linux-gnu-g++-6 6.3.0 20170516
on a recent Debian Testing system [Debian GNU/Linux 9.0 (stretch)].
Change-Id: Ibaa7b314723d41259703d723cbdd326982aaf159
Reviewed-on: https://chromium-review.googlesource.com/675576
Reviewed-by: Mark Mentovai <mark@chromium.org>
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
Commit-Queue: Dave Bort <dbort@google.com>
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 basically a whitespace change to ensure that the CQ
and waterfall is working properly again.
TBR=mark@chromium.org
BUG=748681
Change-Id: I87a368e3261f8fa0eddd1c302522140694524b92
Reviewed-on: https://chromium-review.googlesource.com/592536
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>
This reverts commit a06ca92083f517843b05a0047d14c57002f417c1.
Reason for revert: Roll back to buildbot for now.
Original change's description:
> Switch CQ to use the new swarmbucket (LUCI) builders.
>
> This updates the crashpad CQ config to use the builders
> configured in https://chromium-review.googlesource.com/c/580607/.
>
> TBR=mark@chromium.org
> BUG=743139
>
> Change-Id: I29ae95f9d29630ba4522467efefe058548da623b
> Reviewed-on: https://chromium-review.googlesource.com/592849
> Reviewed-by: Dirk Pranke <dpranke@chromium.org>
TBR=dpranke@chromium.org,mark@chromium.org
Change-Id: I7ea1d019f47c6cc3065fcbc7eed68f834a4f2b35
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 743139
Reviewed-on: https://chromium-review.googlesource.com/592792
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>
Clang, GCC, and MSVS 2017 were fine with a “constexpr” definition
corresponding to a class-scope “static const” declaration, but MSVS 2015
is not.
Change-Id: I8c80c6e62d1a312bad161db98e584be225b70bbf
Reviewed-on: https://chromium-review.googlesource.com/592644
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>
The "file-limit" annotation has shown that the system as a whole is not
likely to be out of file descriptors globally. It’s possible that a file
descriptor leak in crashpad_handler itself is responsible for certain
crashes. Add a count of the number of open files in the handler process
to this annotation to test this theory.
Bug: crashpad:180
Change-Id: If6f2304fdabddd29636ba4ac5a7d1e0fff7f4b61
Reviewed-on: https://chromium-review.googlesource.com/585852
Reviewed-by: Robert Sesek <rsesek@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>
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>
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>
ee67585e3115 linux: Switch between x86 and x86_64 with the target_arch
GYP variable
Bug: crashpad:30
Change-Id: Ia7860cda42daae698a179b65d22ef7897141de59
Reviewed-on: https://chromium-review.googlesource.com/553557
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
These were intended to be enabled previously, but GYP uses “ia32” and
“x64” for x86 and x86_64, and zlib.gyp erroneously used “x86” and
“amd64” instead.
In order to make this work, gcc and clang need -mpclmul to enable the
pclmul extension used by crc_folding.c. The optimized code will only be
used if, at runtime, SSE2, SSE4.2, and PCLMULQDQ support is detected.
Change-Id: Ic709cd2a6c38892083c44c4004573a64b3581eb5
Reviewed-on: https://chromium-review.googlesource.com/553337
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: 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>
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>
This folow-up to d2d10d1dc8f3 is for compatibility with 32-bit Android
platforms using NDK API 16.
isinf() is also caught up in the switch.
Change-Id: I652e27061c01afa3dd932f494cc4eeaca4236f40
Reviewed-on: https://chromium-review.googlesource.com/544238
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
TimedWait is implemented using `sem_timedwait` which waits until an
absolute time (time since the epoch) has passed. Previously, the
time to wait (relative to now) was passed without adding the current
time.
Change-Id: I3c169d5b107b8263577c21a8f47dc504058bd708
Reviewed-on: https://chromium-review.googlesource.com/540984
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
