Moving the class name of the allocated object to the allocation callback
gives more flexibility to the embedder, which may decide to track all
sampled allocations, not just those that are still alive.
TEST=Updated DartAPI_HeapSampling_*
Change-Id: Iaae290e15b67ca3e47d72e1896fa6e32b2d4b081
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/297761
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
Also in this change:
- Add heap_size to Dart_HeapSamplingCreateCallback
- Remove heap_size from Dart_HeapSamplingReportCallback
TEST=Existing dart_api_impl_tests updated
Change-Id: Iaa8d340de94d95f93c94f4a3d29d6d889dad49de
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/294800
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
This API allows embedder to append arbitrary footers to DWARF stack
traces. For example, embedder can append a link to a symbolizer
service, which could be used to symbolize the stack-trace.
TEST=manually tested, hard to create automatic tests because vm/cc tests only support JIT, not AOT.
Bug: b/255741575
Change-Id: Id034b9b3194f7b91a8405574ea771c4a06fda2c2
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/275700
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Slava Egorov <vegorov@google.com>
- Flip flag to make strong null safety the default
- Remove code that auto detects null safety mode from source files,
it is necessary to specify --no-strong-null-safety to opt out.
- Retains sniffing of AOT/JIT snapshots and kernel files to determine
null safety mode, the opt out has to be done when generating these
file.
TEST=ci
Change-Id: If2c9608eedb7c46d9c3cd85e261ee9640e0d28eb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/261140
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
This CL introduces new embedding APIs for supporting heap sample
profiling. A registered sampling callback is invoked approximately every
N bytes based on an exponential distribution, providing information
about the isolate group the allocation occurred in, the user visible
name of the allocated object type, a weak persistent handle to the
allocated object, and the size of the allocation.
Sampling is triggered using artificial TLAB boundaries to cause
allocations to be sampled to take the allocation slow path where the
registered callback can be invoked with the allocation information.
Only new space allocations are currently traced, with old space
allocation support to be added in a future CL.
TEST=Dart_HeapSampling
Change-Id: I22bcdeec6e823bc1ab44898d4c596fbed7169fa1
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/264520
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
For symmetry with Dart_ThreadExitCallback. Can be used by an embedder to change thread priority or attach native resources to the thread.
TEST=ci
Change-Id: Ic8eaba7204d0be42db26523b62cbfac3ecb7151f
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/227661
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Branch coverage can't be enabled by a simple global flag, because this
causes problems when functions in an app-jit snapshot that didn't have
the flag enabled are compiled by a VM that has the flag enabled. In
particular, the coverage array will see a different set of token
positions, causing some important asserts to fail.
Change-Id: I35227252b5d271f20b01de99466c06708ec83ed8
TEST=CI
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/223360
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Commit-Queue: Liam Appelbe <liama@google.com>
Makes runtime/include/** respect -Wstrict-prototypes.
Closes: https://github.com/dart-lang/sdk/issues/47729
TEST=ci (FFI has tests that build against the API).
TEST=manually verified in Xcode we have no more warnings.
Change-Id: I035640ae93e942946f5171dd30776b072a235990
Cq-Include-Trybots: luci.dart.try:dart-sdk-linux-try,dart-sdk-mac-try,vm-kernel-gcc-linux-try,vm-kernel-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/220761
Reviewed-by: Slava Egorov <vegorov@google.com>
This region is mostly unused after loading, but it may be accessed again if
- Isolate.spawn is invoke with isolate groups disabled
- A secondary snapshot produced by splitting is loaded
- An external typed data in the snapshot is accessed (usually a kernel file)
- Likely other cases
Even if these cases did not exist, the region is often part of a shared library and so unable to be released independently.
madvise(DONT_NEED) on this region will cause the OS to release the memory in this region but keep the address space reservation and mapping. If it is touched again, it will be brought back in from the file. If it is not backed by a file, such as malloc memory, it will be brought back in as zeros and the program will likely fail.
TEST=ci
Bug: https://github.com/dart-lang/sdk/issues/44019
Bug: https://github.com/flutter/flutter/issues/92120
Change-Id: I315a049b0f7d440e181d0a5e87fa6770a2fd4f79
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/216580
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
`DART_EXTERN` in `dart_api_dl.h` was missing `__declspec(dllexport)` on
Windows, causing `Dart_InitializeApiDL` to not be visible.
Using `DART_EXPORT` instead doesn't work because the definitions added
by `DART_API_ALL_DL_SYMBOLS` do not support having a 'used' attribute.
Instead, define a `DART_EXPORT_DL` for these which is identical but
without the 'used' attribute.
Note that the precompiler `DART_SHARED_LIB` macro must be defined for
`__declspec(dllexport)` to be part of `DART_EXPORT`/`DART_EXPORT_DL`.
Also fixes `#define DART_EXTERN_C` to be `extern` in C. Without this,
the linker will see duplicate symbols for things `DART_EXPORT`ed when
the `dart_api_dl.h` is included in C files.
TEST=SDK build on all OSes
Change-Id: I0af1d46d22409599203d9be310d54bd16c6a5b59
Cq-Include-Trybots: luci.dart.try:dart-sdk-linux-try,dart-sdk-mac-arm64-try,dart-sdk-mac-try,dart-sdk-win-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/215550
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
This makes it more closely mirror the Dart_NativeEntryResolver,
and acts as an extra sanity check that signatures (roughly)
align between the FfiNative decl. and the native function.
TEST=Updated runtime/vm/dart_api_impl_test.cc
Change-Id: I40799dc583ec14db14dc453afed4e2d1eb06fced
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/212566
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Daco Harkes <dacoharkes@google.com>
communicate with the kernel isolate while accepting compilation results
during a hot reload.
TEST=reload bot tests.
Change-Id: I55f983cc8461c89e91bf1bef84f39dcda61e8142
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/210942
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>
Adds support for marking external functions as @FfiNative's,
which will be called using fast FFI calls.
Resolution happens by calling out to a new embedder provided
Dart_FfiNativeResolver which the embedder can specify via
Dart_SetFfiNativeResolver.
TEST=vm/cc/DartAPI_FfiNativeResolver
Bug: https://github.com/dart-lang/sdk/issues/43889
Change-Id: I3cfff360b05314499a81444b90f4ea0a1b937b0b
Cq-Do-Not-Cancel-Tryjobs: true
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/170092
Commit-Queue: Clement Skau <cskau@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
`Dart_NewWeakPersistentHandle` and `Dart_NewFinalizableHandle` in
`dart_api.h` do no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Expandos no longer accept `Pointer`s and subtypes of `Struct`s
as values passed in to the `object` parameter.
Cleans up unused object_store->ffi_struct_class.
Reland 1: Allow importing `dart:ffi` from `dart:core` with
`--enable-ffi=false`.
Reland 2: Allow the new `_Compound` class to extend `NativeType`. (This
got triggered in this CL on the build because of the import
from `dart:core`.)
Closes: https://github.com/dart-lang/sdk/issues/45071
Breaking change: https://github.com/dart-lang/sdk/issues/45072
TEST=vm/cc/DartAPI_FinalizableHandleErrors
TEST=vm/cc/DartAPI_WeakPersistentHandleErrors
TEST=tests/ffi(_2)/expando_test.dart
Change-Id: I133278e16bd75cd2bb6234e7ddf042ffa0a54fd6
Cq-Include-Trybots: luci.dart.try:dart-sdk-linux-try,dart-sdk-mac-try,dart-sdk-win-try,vm-ffi-android-debug-arm-try,vm-ffi-android-debug-arm64-try,vm-kernel-asan-linux-release-x64-try,vm-kernel-mac-debug-x64-try,vm-kernel-linux-debug-ia32-try,vm-kernel-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-x64-try,vm-kernel-nnbd-linux-debug-ia32-try,vm-kernel-nnbd-mac-release-x64-try,vm-kernel-nnbd-win-debug-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-debug-simarm_x64-try,vm-kernel-precomp-nnbd-linux-debug-x64-try,vm-kernel-precomp-win-release-x64-try,vm-kernel-reload-linux-debug-x64-try,vm-kernel-reload-rollback-linux-debug-x64-try,vm-kernel-win-debug-x64-try,vm-kernel-win-debug-ia32-try,vm-precomp-ffi-qemu-linux-release-arm-try,vm-kernel-precomp-obfuscate-linux-release-x64-try,vm-kernel-msan-linux-release-x64-try,vm-kernel-precomp-msan-linux-release-x64-try,vm-kernel-precomp-android-release-arm_x64-try,analyzer-analysis-server-linux-try,vm-kernel-precomp-linux-debug-x64c-try,vm-kernel-linux-debug-x64c-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/195079
Reviewed-by: Martin Kustermann <kustermann@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
Alexander Markov