Soong writes out text protos for the sbox manifests, and if those change
every time soong changes, we trigger rebuilds of significant portions of
the tree. This is very annoying when attempting to iterate on Soong, so
disable this functionality at the soong_build level.
Bug: 200727888
Change-Id: Icf21e1775a4c4200e983c1b8ac66ddd780d7c90c
Also delete the now-unnecessary soong_env binary.
Test: Manually. Also checked what happens when a used environment
variable changes.
Change-Id: Ib393e7f444e94819198c6cce4bcd8719d9fd9441
Splits queryview into queryview and bp2build. The latter runs as a
presingleton (could be converted to a singleton). This prevents needing
to run soong_ui a subsequent time to build the query. Queryview remains
as a separate step to prevent increasing runtime due to this generation
every time Soong runs.
Currently this is running as a presingleton as this gives a translation
of Android.bp files after only LoadHooks have run, no mutators.
Test: go tests
Test: m queryview && bazel query --config=queryview //...
Change-Id: If2ba28c7ef60fbd41f43bda6623d41c8c7d23a1b
Bazel overlay is an experimental feature. This renames the feature to 'queryview' to better describe its purpose, and also move away from the already overloaded 'overlay' term in Android.
Test: m queryview && bazel query --package_path=out/soong/queryview //...
Change-Id: I8b5068c7db46cb61a03a8e87af9c7c9077ebeff9
This patchset changes bazel_overlay to generate soong_module as a macro,
instead of a rule, and generate module properties in the BUILD files as
kwargs to the soong_module macro.
Here's a sample of the new BUILD files with module properties:
bionic/libdl/BUILD.bazel:
https://paste.googleplex.com/6484466996346880?raw
art/build/apex/BUILD.bazel:
https://paste.googleplex.com/5461276001042432?raw
bionic/apex/BUILD.bazel:
https://paste.googleplex.com/4932795173437440?raw
soong_module is now a macro that conditionally expands to underlying
soong_<module type> rules with statically defined attributes. In this
CL, we are starting with a hardcoded filegroup rule definition to
demonstrate the conditional rule loading within the soong_module macro.
If the module_type matches an existing Bazel rule, soong_module forwards
the entire **kwargs into the rule, which Bazel typechecks.
Non-filegroup module types will be expanded into generic_soong_module,
but with the kwargs dropped.
This approach allows us to:
1) Programmtically generate soong_<module type> rules for all module
types available in Soong, together with the statically defined attribute
types in `attrs`.
2) Incrementally migrate and test individual module types from
generic_soong_module to their module rule shims.
3) Swap out the module rule shims to the actual Bazel rules (e.g
cc_library, java_library) and perform attribute manipulation in Starlark
itself.
Example of querying against the 'srcs' attribute in soong_filegroup:
```
$ bazel cquery 'kind(soong_filegroup, //...)' | wc -l
590
$ bazel cquery --output=build 'attr(srcs, "linker.cpp",
kind(soong_filegroup, //bionic/...))'
INFO: Analyzed 3907 targets (0 packages loaded, 0 targets configured).
INFO: Found 3907 targets...
/usr/local/google/home/jingwen/aosp/out/soong/bazel_overlay/bionic/linker/BUILD.bazel:4144:13
soong_filegroup(
name = "linker_sources",
generator_name = "linker_sources",
generator_function = "soong_module",
generator_location = "bionic/linker/BUILD.bazel:4144:13",
srcs = ["dlfcn.cpp", "linker.cpp", "linker_block_allocator.cpp",
"linker_dlwarning.cpp", "linker_cfi.cpp", "linker_config.cpp",
"linker_debug.cpp", "linker_gdb_support.cpp", "linker_globals.cpp",
"linker_libc_support.c", "linker_libcxx_support.cpp",
"linker_namespaces.cpp", "linker_logger.cpp",
"linker_mapped_file_fragment.cpp", "linker_phdr.cpp",
"linker_relocate.cpp", "linker_sdk_versions.cpp", "linker_soinfo.cpp",
"linker_tls.cpp", "linker_utils.cpp", "rt.cpp"],
deps = [],
)
/usr/local/google/home/jingwen/aosp/out/soong/bazel_overlay/soong_module.bzl:32:23
in <toplevel>
```
This CL is known to be lacking the following features, and will be looked at in follow up CLs:
1) Pretty printing reflect.Interface properties, like arch, multilib and
dists.
2) Generating module Bazel rule shims for all module types, instead of
hardcoding them like `soong_filegroup`.
Bug: 162720644
Test: bazel_overlay_test.go (soong build test)
Test: m bazel_overlay && cd out/soong/bazel_overlay && bazel cquery //...
Signed-off-by: Jingwen Chen <jingwen@google.com>
Change-Id: Ic1e448887eb540ed15a55bc4090cf75a4d832d41
The Bazel overlay is a directory at out/soong/bazel_overlay that
replicates the layout of the AOSP Soong module tree, but as a Bazel
workspace. Each Soong module variant is represented as a BUILD target
created with the `soong_module` rule.
To create this overlay, run `m bazel_overlay`.
A `soong_module` target can depend on other `soong_module` targets.
These dependencies replicate each module's `directDeps` in the Blueprint
graph, just before `PrepareBuildActions`.
This enables users to use bazel query as a way to introspect the Soong
module graph. For example,
- Direct reverse dependencies of //bionic/libc:generated_android_ids in
//bionic/libc/...:
$ bazel query 'rdeps(//bionic/libc/...,
//bionic/libc:generated_android_ids, 1)'
//bionic/libc:libc_bionic_ndk--android_recovery_arm_armv7-a-neon_static
//bionic/libc:libc_bionic_ndk--android_ramdisk_arm_armv7-a-neon_static
//bionic/libc:libc_bionic_ndk--android_arm_armv7-a-neon_static_com.android.runtime
//bionic/libc:libc_bionic_ndk--android_arm_armv7-a-neon_static
//bionic/libc:generated_android_ids
- Why does com.android.runtime depend on lzma?
$ bazel query
'somepath(//bionic/apex:com.android.runtime--android_common_com.android.runtime_image,
//external/lzma/...)'
//bionic/apex:com.android.runtime--android_common_com.android.runtime_image
//bionic/libc/malloc_debug:libc_malloc_debug--android_arm_armv7-a-neon_shared_com.android.runtime
//system/core/libunwindstack:libunwindstack--android_arm_armv7-a-neon_shared_com.android.runtime
//external/lzma/C:liblzma--android_arm_armv7-a-neon_shared_com.android.runtime
- What does the dep graph of //bionic/libc:crtbegin_so look like?
$ bazel query
'deps(//bionic/libc:crtbegin_so--android_arm_armv7-a-neon)'
--output=graph > graph.in && dot -Tpng < graph.in > graph.png
https://photos.app.goo.gl/DfsdoFRNsRjGwTmy8
Test: croot && m bazel_overlay && cd out/soong/bazel_overlay && bazel
query //... && bazel query 'rdeps(//bionic/libc/...,
//bionic/libc:generated_android_ids, 1)'
Signed-off-by: Jingwen Chen <jingwen@google.com>
Change-Id: I3bf40309bfb2d963bb8a688706385a57ee304c37#
Collect the number of modules and variants and some basic statistics
on memory usage inside soong_build by writing out a proto that is
read back in by soong_ui.
Test: examine soong.log
Change-Id: I6926876377a4f6229cf41fdbf166ae03c885ea55
Add a rule in soong that re-executes soong_build in order to
generate build documentation. This allows Soong to customize
the documentation.
Bug: 70516282
Test: m soong_docs
Change-Id: If143cfacd6ac20274cd7bb8d8fab0c07025a5553
