There are two pieces to make this work:
1. Local include paths must include $(BINDIR)-relative paths, to support
generated headers in those directories.
2. The srcs that bp2build outputs for BUILD targets must include labels
for targets given in generated_hdrs and generated_srcs.
Support for exported_generated_hdrs intentionally deferred.
This allows us to remove several targets from the bp2build denylist.
Some are moved to the mixed build denylist, because genreated headers are
still unsupported in mixed builds.
Test: bp2build.sh CI script
Change-Id: Ib4f9dac20f6445487b8dad53b91eac01f437a590
This CL exports common/global/device/host clang/ld/ldd flags
from their Ninja variable initialization locations in
cc/config/global.go and cc/config/clang.go to make Bazel's cc_toolchain
and Soong's cc actions more consistent with each other.
This does not handle env-dependent or arch-specific toolchain flags
yet (logic in compiler.go and linker.go).
Test: TH
Bug: 187086342
Bug: 187084737
Bug: 186628704
Bug: 187857770
Change-Id: Ie403d7cd23f35160897b9dd902c799cbf1bd7f0c
This now works with --features no_copts_tokenization. With tokenization,
the escaped empty string '\"\"' became an actual empty string '' on the
command line, setting -DWILDABBR to the wrong value.
However, no_copts_tokenization unveiled other problems with Android.bp
flags, such as spaces in existing cflags like
https://cs.android.com/android/platform/superproject/+/master:bionic/libc/Android.bp;l=288;drc=a0a4a6c2967b5b3c02c951ea1145f32ed5564ab9
- this trips up Bazel's copts when generated literally, so the
fix (other than splitting on space and making Soong accept strings that
don't start with dashes as cflags) is to make bp2build split cflags on
spaces before generating them as copts.
Test: bp2build, build bionic/...
Fixes: 186822591
Change-Id: Icf10bd20f6fb81db0b719ca0555fc70c75b91a79
Also handle whole_static_libs via a different attribute
(whole_archive_deps), separating these dependencies from regular static
deps.
Test: Build //bionic/libdl with bazel in conjunction with bzl
changes
Change-Id: I45019b6127a0d2731592ec35537ca15e77001cc2
Test: cd bp2build; go test
Test: bazel build //bionic/...
Test: ./build/bazel/scripts/run_presubmits.sh
Change-Id: I71e279470a0d69b243dd0a2b53ce31842fd36ee4
Then plumb them to LabelAttribute.
This refactoring is required because the previous implementation did not
handle properties in shards other than the first one (e.g.
version_script) well. In addition, it also makes the code paths between
bp2build and analysis more similar.
Bug: 186650430
Test: Presubmits.
Change-Id: Ic4393e8ae47f4e88816bf45c89399efd61494d22
The latter doesn't exist anymore, so there's no more need for the
bp2build file manifest.
Bug: 185817076
Test: TH
Change-Id: I6638b84eb371ced98474e3ca5026e3b33b824767
This combines properties among "multilib" and "arch" stanzas in selects
generated by bp2build.
With this fix, libc_gdtoa may be removed from the denylist.
This change also refactors a portion of arch.go, specifically bp2build's
arch mutator, adding a number of comments along the way, to hopefully
make this code clearer for future readers.
Test: mixed_libc.sh
Change-Id: If2beea672957cfb1af6760406ba507181ec38f77
Doesn't work when depends on arch/target/etc., but good enough for
libdl_android.
Bug: 186650430
Test: Presubmits.
Change-Id: Ib0facb41a89454717c74663e5e078aedd33d1b9c
This CL adds support for the static and shared props, forwarding
whole_static_libs and srcs to the underlying shared library's
static_deps and static library's srcs respectively.
Test: TH
Fixes: 186609667
Change-Id: I84f838361c7758b256b2a163af894c502de03109
The comment on the interface of GetDirectDep states if there are
multiple deps with different tags, the first will be returned; however,
the current behavior is to panic if there are multiple deps. The
behavior now:
* a single dep, return the module and tag
* a single module with different tags: return module with first tag
* multiple modules: panic
* no module: return nil, nil
Bug: 186488405
Test: ~/aosp/build/bazel/ci/bp2build.sh
Test: m nothing
Change-Id: Id1e7315e7874b4a683ad7357ed2793822315821f
OS-specific exclude_srcs and srcs will be done in a follow-up, due to
complexities from merging multiple select statements together.
Test: TH
Bug: 186153868
Change-Id: I01b881e9a5a7cd41b4a507f8be7e9e65eab37bdc
In a non-top level Android.bp file, exclude_srcs was not working at all
due to a bug in expandSrcsForBazel. GlobFiles was expanding a glob
relative to root, but the expandedExcludes list was relative to the
module dir, causing the glob function to not consider the
expandedExcludes list at all.
Add tests to demonstrate that this is working now.
Test: TH
Bug: 186388919
Change-Id: Ice8254231d085b39126e91b823a09ec328ee0ae0
Not needed anymore for bp2build-incremental since https://android-review.googlesource.com/q/topic:no-include-check.
Not needed for mixed builds either, since cc compile actions aren't sandboxed.
Fixes: 186488830
Test: treehugger and go tests
Change-Id: Ib5d4908dcce6bf910a653c457bb251d726e717d4
Some BUILD files cannot be written to support bp2build as they already
exist in the tree; however, all BUILD files should be written for
queryview as they are not intended to coexist with handwritten BUILD
files.
Test: $ bazel query --config=queryview
"somepath(//system/linkerconfig:linkerconfig--android_arm64_armv8-a ,
//bionic/libc:libc_openbsd--android_arm64_armv8-a_static)"
Test: build/bazel/ci/bp2build.sh
Fixes: 186132826
Change-Id: I2cb26b7482e7eb5523cee33452be3753ad37e1b0
This CL refactors the cc* bp2build converters to use the common
attribute extractors in cc/bp2build.go.
This also adds include_build_directory to be handled by the compiler
attr extractor to generate recursive headers as inputs.
This also turns include_dirs and local_include_dirs into the
execroot-relative -I flags.
e.g. if a module in bionic/libc has "private" in local_include_dirs,
the "-Ibionic/libc/private" copt is generated for it.
Fixes: 185139955
Test: TH
Test: Forrest for mixed_clean-droid
Change-Id: Ib67056482227e62068fbbea0455035bdf5d56319
Now, if the same file exists in the generated tree and the source tree,
it symlinks in the generated file instead of failing outright.
Drive-by fix: print errors for all conflicts instead of bailing out on
the first one.
Test: Presubmits (including the two new tests)
Change-Id: Ifb5b3fc89b5454d231966bfa4e61c22cd69834f3
It's under out/soong/workspace and is a symlink forest that merges BUILD
files generated by bp2build and the source tree.
bazel-* symlinks and $OUTDIR are currently ignored.
Test: Presubmits.
Change-Id: If14df23bd0f6a6f2d7d1140f95213f2aee66d652
This allows the following cc_library_static targets to build with bp2build:
- libc_freebsd
- libc_freebsd_large_stack
- libc_openbsd_ndk
- libc_gdtoa (* but still fails for mixed builds)
- libc_aeabi
- libc_static_dispatch
- libc_dynamic_dispatch
This also allows a number of other cc_library_static targets to progress further in their builds.
Test: Added unit test
Test: bp2build-sync.py write; bazel build //bionic/...
Change-Id: I71742565c16594448a41a6428a5c993171ec4cb4
This CL refactors the bp2build code generator to pretty print lists with
a single element on one line, instead of taking up three lines, which
can make BUILD files unnecessarily long. A single line singleton list is
also more commonly used in BUILD files.
Test: TH
Change-Id: Ic9e44741bbb070c8f45925466b9ccdd0608498b2
This CL contains the converter for libdl_android, a cc_library that
expands into a cc_shared_library and a regular cc_library.
Test: TH
Test: bp2build; bazel test //build/bazel/tests/...
Change-Id: If70641a538211b0d6b2aac0e4d0d06912318304d
Test: Added unit test
Test: bp2build-sync.py write; bazel build //bionic/... works for more cc_library_static targets (in a parent CL)
Change-Id: Ib487216a4bcbc52958ff948722dae347b0d8b606
Starting with copts for cc_object, with an extracted function that can
be shared with other cc_* module types.
Test: TH
Change-Id: I9025232e83a3dcd0ca243387486fafbdbd3e2d9b
Remove Android-targeting gcc toolchain libraries -- libgcc,
libgcc_stripped, libatomic, and libgcov. Also remove libunwind_llvm,
which is replaced with a libunwind toolchain prebuilt.
The __atomic_* library functions are now part of the compiler-rt
builtins library:
https://android-review.googlesource.com/c/toolchain/llvm_android/+/1625025
Bug: http://b/153025717
Test: treehugger
Change-Id: I971d0a4a49f1aaeb3546e80b6d94208277a171ac
This CL is pretty large, so I recommend starting with reading the newly
added tests for the expected behavior.
This change works in conjunction with the linked CLs in the Gerrit topic.
Those CLs add support for new platform() definitions for OS targets
specified in Soong's arch.go, which are configurable through
Android.bp's `target {}` property. It works similary to previous CLs
adding support for the `arch {}` property.
These configurable props are keyed by the OS: android, linux_bionic,
windows, and so on. They map to `select` statements in label list
attributes, which this CL enables for cc_library_headers' header_libs
and export_header_lib_headers props.
This enables //bionic/libc:libc_headers to be generated correctly, from:
cc_library_headers {
name: "libc_headers",
target: {
android: {
header_libs: ["libc_headers_arch"],
export_header_lib_headers: ["libc_headers_arch"],
},
linux_bionic: {
header_libs: ["libc_headers_arch"],
export_header_lib_headers: ["libc_headers_arch"],
},
},
// omitted props
}
to:
cc_library_headers(
name = "libc_headers",
deps = [] + select({
"//build/bazel/platforms/os:android": [
":libc_headers_arch",
],
"//build/bazel/platforms/os:linux_bionic": [
":libc_headers_arch",
],
"//conditions:default": [],
}),
)
Test: TH
Test: Verify generated //bionic/libc:libc_headers
Fixes: 183597786
Change-Id: I01016cc2cc9a71449f02300d747f01decebf3f6e
cc_object crtbrand sets product_variable.platform_sdk_version.asflag
and will not compile correctly within mixed builds without it.
Only handles product_variables that expand product variables.
Bug: 181794963
Test: ~/aosp/build/bazel/scripts/milestone-2/demo.sh full
Change-Id: I293fcb18032aa51f63bb7b3de94abd6d1ec38180
See b/184026959 for an instance where a genrule's cmd contains \n, and
the codegenerator generates an applied newline. It should be the
original newline control sequence literal.
Test: TH, bp2build unit test
Fixes: 184026959
Change-Id: Idb99ea87c75dfa4cb3ae679f98d8f61cb5a5ab09
Change-Id: Ic1c795d9d961b309d269b1bc4bccb7522f288e9b
Rationale: we haven't modified any gitignore file. lberki has a new proposal to steer this in a new direction, so let's reflect the comment to the current reality.
Also refactor bp2build-related code for cc_library_headers.
(Retry of previous CL after the presubmit failed to detect a merge conflict)
Test: Added unit test.
Test: bp2build-sync.py write; bazel build //bionic/... still works (but bp2build is disabled for most cc_library_static targets for other reasons)
Change-Id: I2f4405c2fea305623bbc6daaaf62808b0c074216
Revert submission 1594391-bp2build-cc_library_static
Reason for revert: Broke the build on aosp-master
Reverted Changes:
Ib16ccf31a:Add cc_library_static macro to help with bp2build ...
I37c856be2:Add bp2build support for cc_library_static.
Change-Id: Ie94d5bc6da81758cd4e0461c08a810a29643c971
Also refactor bp2build-related code for cc_library_headers.
Test: Added unit test.
Test: bp2build-sync.py write; bazel build //bionic/... still works (but bp2build is disabled for most cc_library_static targets for other reasons)
Change-Id: I37c856be20a47b154909338a22a7dba1ab55693f
This CL adds the support for specifying lists of directories in
build/soong/android/bazel.go, which are then written into
out/soong/bp2build/MANIFEST. Using this configuration,
modules/directories can either default to bp2build_available: true or
false, while still retaining the ability to opt-in or out at the module level.
It also ensures that ConvertWithBp2Build returns true iff the module
type has a registered bp2build converter.
Test: go tests
Test: demo.sh full
Test: TreeHugger presubmits for bp2build and mixed builds.
Change-Id: I0e0f6f4b1b2ec045f2f1c338f7084defc5d23a55
modules converted with bp2build_available are will also be available to
be used in mixed builds.
Test: build/bazel/scripts/milestone-2/demo.sh full
Test: go tests
Change-Id: I49f16ec3ba5bb11dfed8066af069c27eb04371fb
If both bp2build_available and label are specified, label will be
preferred.
Initially, we copy the entire BUILD.bazel file. Eventually we may move
this to use bazel query for a more accurate result.
Test: go test *
Test: build/bazel/scripts/milestone-2/demo.sh full
Test: GENERATE_BAZEL_FILES=true m nothing
edit bionic/libc/tools/BUILD.bazel
GENERATE_BAZEL_FILES=true m nothing and verify changes picked up
Bug: 180516554
Change-Id: I43025583300e6b10d2c18032cd4a76237b578d59
This CL adds a simple python_binary_host to native py_binary converter
for standalone modules that don't depend on libs. It also adds support
for the conditional py2/py3 build target based on the version prop.
Test: milestone-2/demo.sh full
Test: bazel query 'kind("py_binary rule", //bionic/...)'
Test: bazel run //bionic/libc/tools:genfunctosyscallnrs
Test: bazel run //bionic/libc/tools:genseccomp
Test: go tests
Fixes: 182236395
Change-Id: Ibe5ec6cd0dc12a61b3a449a8c723d80b891fae42
This CL adds a basic framework to support configurable string_list
attributes, selecting on the Arch variant (x86, x86_64, arm, arm64).
It offers fine-grained controls to map individual configurable
properties (arch_variant) to configurable Bazel attributes, starting
with the string_list type for the copts property for cc_object.
This design is primarily motivated to have minimal boilerplate in
bp2build mutators, allowing anyone to opt-in configurable attributes,
and modify intermediate states before passing them on into the
CreateBazelTargetModule instantiator.
Fixes: 178130668
Test: go tests
Test: build/bazel/scripts/milestone-2/demo.sh
Change-Id: Id6f04d7c560312a93e193d7ca4e1b7ceb6062260
objs contains module references to other cc_objects that will be used
for linking later. This maps to cc_library deps.
Also support exclude_srcs, and added tests.
Test: bp2build generate, sync, bazel build //bionic/...
Change-Id: I21200ff73f24bcf5357d9df8dcb5519cde532a77
This allows more direct access to the bazel label and whether the module
is bp2build available.
Test: go test *
Change-Id: I23375835d20fa53d7d94127b2dc2d5bb20487bfb
This eliminates the need to remove quotes, delete attributes, and
re-checking that name has correct prefix. Additionally, this allows
assignment directly to the BazelTargetModuleProperties struct, which
allows defaulting unused fields and clarity of which field is being set.
Test: go test soong tests
Test: ran ./build/bazel/scripts/milestone-2/demo.sh
Change-Id: Ia9bfcce76234c793a4ddd5f29a661150f83341c9
Sample output:
[bp2build] cc_library_headers: 5 targets
[bp2build] cc_object: 5 targets
[bp2build] filegroup: 4 targets
[bp2build] genrule: 4 targets
[bp2build] sh_binary: 1 targets
[bp2build] Generated 19 total BUILD targets from 39270 Android.bp modules.
This CL adds an additional CodegenMetrics return value to
GenerateBazelTargets calls, which are called from bp2build, queryview,
and their tests. For this UI, we only want to use it for bp2build, and
not queryview or tests, since it's not useful for the former, and can
pollute the CLI for the latter.
Test: build/bazel/scripts/milestone-2/demo.sh
Change-Id: Ic84307a1ed1a25e360c9b23459e5449d932bc2e7
This CL introduces a basic bp2build converter for cc_object modules.
cc_objects maps cleanly to cc_library targets, but with -fnoaddrsig.
This CL also demonstrates generating include deps within a macro to
allow the cc_object compilation to depend on a relative-include header
within an include dir.
e.g. if "foo.cc" includes "android/log.h" and the latter is located at
"include/android/log.h", the autogenerated header deps would export
"android/log.h" correctly to the foo.cc upstream target.
Test: GENERATE_BAZEL_FILES=true m nothing && bp2build-sync write && bazel build //bionic/libc:crtbegin_so1
Change-Id: Ifd9e097051ec184ab0a1929d07918f0ff4f24d98
The checked in files are named BUILD.bazel, while bp2build files are
named BUILD.
Test: GENERATE_BAZEL_FILES=true m nothing
Change-Id: If226f581b5075088f774dc4f5f9ee88259821835
This CL replaces the "__bp2build__" name prefix boilerplate with a props
creation function, and centralizes the prefixing in there.
Test: TH
Test: soong tests
Change-Id: Ic963199ab60dcce0d3361abff111cfa9acd4c21b
The package module type was recently introduced, and its module name is
the full package path. queryview uses the module name as the eventual
target name in the generated BUILD files, so this causes a crash as seen
in b/179605762.
Workaround this by not generating package modules in the queryview
directory.
Test: m queryview && bazel query --config=queryview //...
Fixes: 179605762
Change-Id: Iac2bd79d02bec47d6271583d106c184fb2f16e68
This is obviously not good build hygiene, but since Soong modules are in a global namespace, making BUILD files fully public will increase our velocity during the initial migration phases.
We'd want to lock visibility down to private by default as soon as possible, but for the purposes of migration, these will be public.
Test: bazel build //bionic/...
Change-Id: I99d62f3f8826712240decd325928435333870352
This CL adds a per-target allowlist to instruct bp2build on which modules it should generate Bazel targets for.
Test: soong tests
Change-Id: I869e66fce405c2c6689b381569b8cc0118cbcf76
This CL refactors the CreateBazelTargetModule API to minimize boilerplate, and to establish a well defined function signature for the expected metadata about a BazelTargetModule.
Test: soong tests
Test: TH
Change-Id: I474ff5a2b0db8deeed49ba4ca73b416ccb494fdd
This currently expands all globs, still need to support converting glob
syntax.
Test: go build_conversion_test
Test: GENERATE_BAZEL_FILES=true m nothing
Test: m nothing
Bug: 165114590
Change-Id: If7b26e8e663d17566fad9614ca87a8da1f095284
This CL brings the defaults mutators into bp2build, reusing the
implementation of flattening defaults from *_defaults module deps into
the modules themselves.
This is an approach to converge defaults semantics with Bazel, which
doesn't have existing equivalent abstractions, other than macros, which
require more infrastructure to be built.
Test: TH
Test: build_conversion_test.go
Change-Id: Ia1443f8e6c3eb277fa861bb96625425a22cfc6d7
This CL adds support to bp2build for declaring the location of the
Starlark rule definition when creating BazelTargetModules. This is
needed for non-native rules that needs to be loaded from .bzl files
somewhere in the tree.
Since load statements are aggregated at the top of the BUILD file, away
from the targets that actually use them, this CL also introduces an
abstraction to group BazelTargets together and compute their load
statements and target string representations separately, allowing load
statements to be decoupled and written into a BUILD file before the
targets themselves.
Test: soong tests
Test: TH
Test: GENERATE_BAZEL_FILES=true m nothing && build/bazel/scripts/bp2build-sync.sh write && bazel cquery //bionic/...
Fixes: 178531760
Test: TH
Change-Id: Ie5f793a00006eb024eaef07ddd9fde7aaefc054e
The previous implementation relied on the implicit registration of Bp2Build mutators, resulting in test non-hermeticity. Refactor bp2build tests to explicitly specify the bp2build mutators under test.
Test: Soong tests
Test: TH
Change-Id: I9b9674bad1ea533b3bd31b07077a9e02c99b4c1d
The CodegenMode enum helps to differentiate between bp2build and queryview modes of generating BUILD files from the Soong module graph.
bp2build is used for generating BUILD files from an unconfigured Soong module graph for Soong->Bazel conversion, whereas QueryView is a front-end for querying the existing Soong configured module graph with Bazel query.
Test: go test
Test: TH
Change-Id: I5709f591f1ae08b2770adf272d8ce60c9ee1f46a
