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(Automated g4 rollback of commit de92f9d8ea093416fae999073bbfcf3cf501ab55).
*** Reason for rollback ***
The problems that forced commit de92f9d8ea093416fae999073bbfcf3cf501ab55 were fixed in commit e6392cd380fce14d719890c78d5eb2657e8a6cfc .
*** Original change description being rolled forward ***
Implement dynamically configured LIPO builds.
Quick overview:
- provide a dynamic interface for getting the artifact owner
configuration
- provide a (dynamic) RuleTransitionFactory LIPO_ON_DEMAND to replace
the (static) RuleClass.Configurator LIPO_ON_DEMAND. Eventually
we'll remove the rule class configurator interface entirely....
***
ROLLBACK_OF=156180015
PiperOrigin-RevId: 157865224
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*** Reason for rollback ***
Causes crash bug in certain circumstances.
*** Original change description ***
Implement dynamically configured LIPO builds.
Quick overview:
- provide a dynamic interface for getting the artifact owner
configuration
- provide a (dynamic) RuleTransitionFactory LIPO_ON_DEMAND to replace
the (static) RuleClass.Configurator LIPO_ON_DEMAND. Eventually
we'll remove the rule class configurator interface entirely.
This doesn't actually turn dynamic LIPO on. So the direct effect of
this change should be a no-op. The flip will come in a followup
change. For now, dynamic...
PiperOrigin-RevId: 156180015
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*** Reason for rollback ***
Fixes memory issue that caused this CL to be rolled back.
*** Original change description ***
Automated g4 rollback of commit cbbb423663b154d82e3dfa5e9a56839583987999.
*** Reason for rollback ***
Need to roll this back as part of http://b/38171368
*** Original change description ***
RELNOTES: Effectively remove sysroot from CppConfiguration and allow it to use select statements.
PiperOrigin-RevId: 155651879
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*** Reason for rollback ***
Need to roll this back as part of http://b/38171368
*** Original change description ***
RELNOTES: Effectively remove sysroot from CppConfiguration and allow it to use select statements.
PiperOrigin-RevId: 155547813
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use select statements.
PiperOrigin-RevId: 155480011
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Quick overview:
- provide a dynamic interface for getting the artifact owner
configuration
- provide a (dynamic) RuleTransitionFactory LIPO_ON_DEMAND to replace
the (static) RuleClass.Configurator LIPO_ON_DEMAND. Eventually
we'll remove the rule class configurator interface entirely.
This doesn't actually turn dynamic LIPO on. So the direct effect of
this change should be a no-op. The flip will come in a followup
change. For now, dynamic LIPO can be triggered with
--experimental_dynamic_configs=notrim.
PiperOrigin-RevId: 155096056
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The key change is to eliminate the need to transition from the data to the target configuration by relying on out-of-band configuration state. Specifically, the old model drops LIPO options from the data configuration. In the cases when we have to switch back (i.e. TARGET_CONFIG_FOR_LIPO), those options have to get re-injected somehow. Static configurations achieve this with the global configuration transitions table. But dynamic configs have no comparable source (and they consciously eschew global state).
This cl changes the model to *keep* LIPO settings in the data config, then use a new "enableOrDisable" flag to determine whether or not to actually use them. With this model, the data -> target transition is now as simple as toggling that flag.
This change doesn't actually add dynamic config LIPO support. It's doing enough as it is, and we need to make sure it doesn't break existing LIPO semantics. Dynamic support will come as a followup.
PiperOrigin-RevId: 153504240
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redirects.
--
PiperOrigin-RevId: 150647389
MOS_MIGRATED_REVID=150647389
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--
PiperOrigin-RevId: 150610613
MOS_MIGRATED_REVID=150610613
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New option --experimental_dynamic_configs=notrim_partial automatically
switches to --experimental_dynamic_configs=off if any BuildOptions
fragment sets useStaticConfigurationsOverride().
CppOptions implements this override for FDO/LIPO.
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PiperOrigin-RevId: 140864317
MOS_MIGRATED_REVID=140864317
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--experimental_dynamic_configs=off - don't use dynamic configs
--experimental_dynamic_configs=on - use dynamic configs with trimmed fragments
--experimental_dynamic_configs=notrim - use dynamic configs with all fragments
This lets us decouple two independent dimensions of dynamic configurations: 1) being able to trigger new configurations and transitions anywhere and 2) only including the fragments needed by a target's transitive closure.
2) is likely to take much more time and effort to properly finesse (three notable challenges: late-bound attributes, aspects, and dynamic shedding of output path names). But 1) by itself already yields significant benefits. So in the name of starting to shift the config work from backend theory to stuff real builds actually use, this change lets us focus on productionizing 1) without blocking on getting all of 2) working first.
tl;dr: iterable deployment and all that.
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MOS_MIGRATED_REVID=133874661
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RELNOTES[INC]: filegroup-based C++ toolchains are not supported anymore. --*_crosstool_top options must always point to a cc_toolchain_suite rule (or an alias of one).
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MOS_MIGRATED_REVID=132410829
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The only place we now don't handle InterruptedException is in the action graph created after analysis, since I'm not sure that will be around for that much longer.
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MOS_MIGRATED_REVID=130327770
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--
MOS_MIGRATED_REVID=122727524
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cc_toolchain_suite. This will allow selecting the correct toolchain based on
--compiler / --android_compiler.
RELNOTES: The key for the map to cc_toolchain_suite.toolchains is now a string
of the form "cpu|compiler" (previously, it was just "cpu").
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MOS_MIGRATED_REVID=121418076
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--
MOS_MIGRATED_REVID=117361388
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This only applies to interleaved loading and analysis - the production code
is fine.
Add tests for the RedirectChaser, the fdoOptimize code path, the XcodeConfig,
and the Jvm loader. Unfortunately, the configuration factory we internally
create by default contains a mock Jvm loader implementation. Since that is one
Yak too many right now, I'm adding a temporary method to the AnalysisMock.
I added the tests to BuildViewTest for now; technically, they ought to go
into the language-specific test cases, but that would require more refactoring
as those don't currently run with interleaved loading and analysis.
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MOS_MIGRATED_REVID=114221476
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- If we have a class object available, we can use .cast(Object)
- Only store the required options objects in CppConfigurationParameters
rather than keeping the entire BuildOptions
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MOS_MIGRATED_REVID=109981236
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--
MOS_MIGRATED_REVID=104845397
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tools repository.
This is a no-op refactoring CL. The actual switch will be made once everything passes with the new setup.
As a side cleanup, change the awkward realAndroidSdk() / realAndroidCrosstoolTop() mechanism to a converter.
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MOS_MIGRATED_REVID=104649067
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The headers were modified with
`find . -type f -exec 'sed' '-Ei' 's|Copyright 201([45]) Google|Copyright 201\1 The Bazel Authors|' '{}' ';'`
And manual edit for not Google owned copyright. Because of the nature of ijar, I did not modified the header of file owned by Alan Donovan.
The list of authors were extracted from the git log. It is missing older Google contributors that can be added on-demand.
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MOS_MIGRATED_REVID=103938715
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- Label parsing can be simplified
- lib.syntax is only contains the code for Skylark and is reasonably independent from the problem domain of building things
This change is mostly only changes to imports declarations. The rest is reversing the dependency between :cmdline and :syntax and moving a tiny amount of code between Printer and FilesetEntry and the addition of SkylarkPrintableValue that I couldn't be bothered to separate out into its own change.
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MOS_MIGRATED_REVID=103527877
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--
MOS_MIGRATED_REVID=103374106
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syntax that means "refer to the main repository".
There isn't an overarching plan for what we are going to do with the cmdline package, which seems to be separated from the .syntax one in all sorts of awkward ways.
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MOS_MIGRATED_REVID=103088960
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This is a big change, so let me walk you through the key pieces:
1) This cl provides an alternative mechanism for creating configurations and doing configuration transitions that's "dynamic" in that the configurations can be created on the fly and the transitions are arbitrary mappings from BuildOptions --> BuildOptions that can also be created on the fly. It also integrates this with ConfiguredTargetFunction, so the configured target graph automatically uses this framework.
2) It does *not* replace old-style (which we'll call "static") configurations. For a number of important reasons: It's not yet at feature parity (particularly: no LIPO). It's not remotely tested across real projects enough to have confidence that it's battle-ready. It doesn't yet handle certain "special" functions like BuildConfiguration.prepareToBuild() and BuildConfiguration.getRoots(). It still relies on the old static transition logic to determine what transitions to apply (eventually we'll distribute that logic out, but that's too much for a single cl). We need the option to toggle it on and off until we have enough confidence in it. So with this cl, builds can be done in either mode.
3) The new flag --experimental_dynamic_configs toggles use of dynamic configurations.
4) Dynamic configurations are created with the Skyframe function BuildConfigurationFunction (this was already created in an earlier change). This consumes a BuildOptions and a set of configuration fragments to produce a BuildConfiguration.
5) Dynamic transitions are instances of the new class PatchTransition, which simply maps an input BuildOptions to an output BuildOptions.
6) Since static and dynamic configurations have to co-exist (for now), this cl tries hard to keep today's transition logic defined in a single place (vs. forking a dedicated copy for each configuration style). This is done via the new interface BuildConfiguration.TransitionApplier. BuildConfiguration.evaluateTransition is modified to feed its transition logic into TransitionApplier's common API. Both dynamic and static configurations have their own implementations that "do the right thing" with the results.
7) The transition applier for dynamic configurations basically stores the Transition, then allows DependencyResolver (which calls BuildConfiguration.evaluateTransition) to return Dependency instances containing that Transition (vs. a BuildConfiguration, which they traditionally contain).
7.5) An earlier variation of the dynamic transition applier retained BuildOptions (e.g. when it got a Transition it immediately applied it to get its output BuildOptions, then stored that). This had the advantage of making composing of transitions easier, especially within BuildConfiguration.evaluateTransition (which can theoretically apply multiple transitions to the input configuration). But it turns out that applying transitions has a cost, and it's simply more performant to pass them through until they're really needed.
8) In dynamic configuration mode, after ConfiguredTargetFunction gets its deps (e.g. an <Attribute, Dependency> multimap), it "trims" the configurations for its dependencies by a) only including config fragments required by the deps' subtrees and b) applying the transitions that came from 7). This all happens in the new method ConfiguredTargetFunction.trimConfigurations.
9) trimConfigurations is heavily performance-optimized based on a lot of experience running this through a large project within Google. As it turns out, the cost of host transitions can be atrocious (because there are a lot of them). Also, BuildOptions.clone() is expensive. And just creating BuildConfiguration SkyKeys also has a cost (largely because of BuildOptions cloning), so that shouldn't be done except when really necessary. My experience with this convinced me it's worth making this method complicated for the sake of making it fast. Since it basically visits every edge in the configured target graph (at least), it really needs to be slick.
10) Since host transitions in particular are problematic w.r.t. speed, I compute the host *once* in ConfigurationCollectionFunction.getHostConfiguration() and expose that reference to ConfiguredTargetFunction and other Skyframe functions. This limits recomputation to just when the fragments are trimmed.
11) Since options cloning is expensive, I'm doing something scary: exposing a BuildConfiguration.getOptions() method that returns a direct reference. Since BuildOptions is mutable, this is dangerous in the wrong hands. I can experiment with going back to cloning (with the caching of host transitions it may not matter as much), but we may ultimately have to put up with this risk for the sake of performant analysis time. What would be *really* awesome would be to make BuildOptions immutable. But that's not going to happen in this cl.
So in short, the key abstractions in this cl are:
- PatchTransition
- BuildConfiguration.TransitionApplier
- ConfiguredTargetFunction.trimConfigurations
The current implementation imposes no analysis time penalty
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MOS_MIGRATED_REVID=101474620
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This is fragile, and there might be other places in the codebase this issue occurs.
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MOS_MIGRATED_REVID=97784977
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This is needed so that Bazel can access Android NDK if it's outside of the workspace. The current limitation is that we Bazel can pretend that there is a BUILD file there, but cannot do the same with a CROSSTOOL file. We could fix that limitation, but given that Crosstool is the only conceivable use case, let's fix it by changing the Blaze-Crosstool interface.
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MOS_MIGRATED_REVID=95517408
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they need to create their fragments.
This is prerequisite work for fragment-limited configurations
(configurations that only include the fragments needed by their rules'
transitive closures). Given a set of desired fragment classes, we need
to know which FragmentOptions are needed to instantiate those fragments.
Note that we can't map this relationship the other way (given a set
of FragmentOptions, which fragment classes do they load?). That's
because different fragment loaders may consume overlapping options.
A good example is CppOptions, which is, e.g., used by both the C++
and Python configuration loaders.
At some point, we're probably going to want to force configuration
loaders to only understand options from their own "domain" (or have
well-defined hierarchies). But that's not the reality of today.
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MOS_MIGRATED_REVID=94091093
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--
MOE_MIGRATED_REVID=85702957
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gregce
mstaib
Googler
Lukacs Berki
Janak Ramakrishnan
Alex Humesky
Cal Peyser
Ulf Adams
Damien Martin-Guillerez
Han-Wen Nienhuys