`ply`, [by design](https://github.com/dabeaz/ply/issues/79), does not produce reproducible table files; hence bug 1633156. (Note that this was *always* true, but only became a problem once we switched to Python 3, which has more unpredictable dict iteration order than Python 2.7, at least prior to [3.7](https://docs.python.org/3/whatsnew/3.7.html#summary-release-highlights).)
In any other circumstance I would consider submitting a patch to `ply` to fix this, but as of the [in-progress version 4.0 of the library](https://github.com/dabeaz/ply/blob/master/CHANGES), it doesn't even emit this cached data any more, and indeed the [latest version of the code](1fac9fed64/ply) doesn't even call `open()` at all except to do logging or to read the text data to be parsed from `stdin`. So if we were going to pin our future on `ply` and upgrade to later versions of the library in the future, we would have to live in a world where `ply` doesn't generate cached table files for us anyway.
Emitting the cached table files so later build steps can consume them is an "optimization", but it's not clear exactly how much actual value that optimization provides overall. Quoth the `CHANGES` file from that repository:
```
PLY no longer writes cached table files. Honestly, the use of
the cached files made more sense when I was developing PLY on
my 200Mhz PC in 2001. It's not as much as an issue now. For small
to medium sized grammars, PLY should be almost instantaneous.
```
In practice, I have found this to be true; namely, `./mach build pre-export export` takes just about as long on my machine after this patch as it did before, and in a try push I performed, there's no noticeable performance regression from applying this patch. In local testing I also found that generating the LALR tables in calls to `yacc()` takes about 0.01s on my machine generally, and we generate these tables a couple dozen times total over the course of the `export` tier now. This isn't *nothing*, but in my opinion it's also not nearly long enough where it would be a concern given how long `export` already takes.
That `CHANGES` file also stresses that if caching this data is important, we have the option of doing so via `pickle`. If and when we decide that re-enabling this optimization is valuable for us, we should take control of this process and perform the generation in such a way that we can guarantee reproducibility.
Differential Revision: https://phabricator.services.mozilla.com/D73484
Linking Rust code against the updatecommon library is not well supported by our build system, but it should be possible. The changes to updatecommon's moz.build will cause updatecommon.lib to be created, which Rust can link against. The build.rs script tells cargo which shared Windows libraries are needed for linking, and where updatecommon.lib can be found. The change to config/recurse.mk enforces the dependency of the update agent on updatecommon, so that we do not attempt to link the agent before updatecommon has been built.
Differential Revision: https://phabricator.services.mozilla.com/D70207
.cargo/config is necessary for all invocations of cargo, which, apart
from normal rust targets, actually also happens indirectly when we
invoke cbindgen.
Differential Revision: https://phabricator.services.mozilla.com/D50550
--HG--
extra : moz-landing-system : lando
This does many things:
1) stops producing (and consuming) `FennecJNI*` JNI wrappers
2) removes the :app and :thirdparty Gradle projects
3) removes relevant pieces of the Gradle target configuration
4) updates lints
5) purges old configurations
After this commit, the `mobile/android` project/application builds
only GeckoView.
Differential Revision: https://phabricator.services.mozilla.com/D46536
--HG--
extra : moz-landing-system : lando
And add them to the UseCounter enum. Also add some sanity-check assertions that
the reporting code relies on.
This works much like the deprecated operation list.
Differential Revision: https://phabricator.services.mozilla.com/D44696
--HG--
extra : moz-landing-system : lando
And add them to the UseCounter enum. Also add some sanity-check assertions that
the reporting code relies on.
This works much like the deprecated operation list.
Differential Revision: https://phabricator.services.mozilla.com/D44696
--HG--
extra : moz-landing-system : lando
And add them to the UseCounter enum. Also add some sanity-check assertions that
the reporting code relies on.
This works much like the deprecated operation list.
Differential Revision: https://phabricator.services.mozilla.com/D44696
--HG--
extra : moz-landing-system : lando
Bug 1578254 added a dependency on .cargo/config to export, which happens
to work in the python/mozbuild/mozbuild/test/backend/test_build.py test
cases because DEPTH=., and make finds the checked-in file .cargo/config
in topsrcdir because VPATH points there. After removing VPATH in bug
1496746, the test no longer finds the file in topsrcdir, and doesn't
have a rule to build it since that exists in the top-level moz.build
file.
Differential Revision: https://phabricator.services.mozilla.com/D45261
--HG--
extra : moz-landing-system : lando
One of the things bug 1567616 did was to change how .cargo/config is
preprocessed, from it happening during configure to it happening during
the build. And to make things happen properly, dependencies were added
on the rust targets to ensure the .cargo/config file is created before
they run.
Unfortunately, that changed the order in which Make would run all the
targets while recursing for the compile tier, when the file doesn't
exist first. So instead of starting the compile tier with rust targets,
it would start with most C++, then do rust... which we know to make
builds slower overall because of the need to wait for those rust builds
to finish which C++ has all been dealt with already, and lacking
parallelism during the rust build.
So we force .cargo/config to be generated during export (which it is not
already because OBJDIR_PP_FILES are currently dealt with during misc).
That makes Make still run the rust targets early during the compile
tier.
And while here, we extend the if block in recurse.mk that excludes all
the top-level recursion dependencies when running from subdirectories.
Differential Revision: https://phabricator.services.mozilla.com/D44992
--HG--
extra : moz-landing-system : lando
We'll require preprocessing that configure subst files don't allow in
the next change, so prepare for that.
Differential Revision: https://phabricator.services.mozilla.com/D43011
--HG--
extra : moz-landing-system : lando
We don't actually care that much about LTO'ing the rust parts of libxul
for gtests, and not LTO'ing it would save multiple minutes of build time
on automation.
Differential Revision: https://phabricator.services.mozilla.com/D42812
--HG--
extra : moz-landing-system : lando
Make the target and host targets depend on those, and flatten the
dependencies.
That is, instead of chains like:
browser/app/target: mozglue/build/target
mozglue/build/target: memory/build/target
we now have:
browser/app/target: browser/app/target-objects \
mozglue/build/target-objects \
memory/build/target-objects
Which means Make can feel free to build the object files in browser/app
before building other dependencies.
Differential Revision: https://phabricator.services.mozilla.com/D42252
--HG--
extra : moz-landing-system : lando
With the addition of toolkit/library/build because of the rust
shenanigans, bug 1573314 and bug 1572046 don't do anything useful
anymore. We're going to do something better anyways.
Differential Revision: https://phabricator.services.mozilla.com/D42251
--HG--
extra : moz-landing-system : lando
Fixes Thunderbird build bustage related to target-shared.
Investigation into the build issue revealed that this hack is no longer necessary and can be removed. And it's always nice to remove Thunderbird specific code from the build system.
Differential Revision: https://phabricator.services.mozilla.com/D41307
--HG--
extra : moz-landing-system : lando
When a directory, like toolkit/library, builds both a static and a
shared library, and another, like toolkit/library/gtest, depends on the
static part, it currently needs to wait for the shared library to be
finished building, preventing both libraries being built in parallel.
By separating shared libraries to a different target, we allow more
parallelism to the build.
Differential Revision: https://phabricator.services.mozilla.com/D41099
--HG--
extra : moz-landing-system : lando
At the same time, make things a little more tangible in the tiers setup
in baseconfig.mk.
Differential Revision: https://phabricator.services.mozilla.com/D37942
--HG--
extra : moz-landing-system : lando
This adds just enough host shared library support for this one use case,
but also takes shortcuts, because fully supporting host shared library
is a deep rabbit hole I'm not ready to take just to fix --enable-lto
--enable-clang-plugin on mac builds.
One downside is that one my machine the plugin now takes > 80s to build,
instead of 15s before, thanks to the lack of unified sources.
--HG--
extra : rebase_source : bf52a72a01d4e3eb77cf52b646b19734b9273075
We want annotationProcessors to be compiled and archived into a JAR at
build time, ready to generate JNI wrappers. (That is, until we turn
the whole thing into a real annotation processor.) But even if we do
use a real annotation processor, we still need to generate SDK
bindings, which is less clearly expressed as an annotation processor.
(It's more of a build step.)
Gradle provides a huge number of ways to organize build logic to
achieve this: see
https://docs.gradle.org/current/userguide/organizing_build_logic.html.
Unfortunately, the best such way -- putting the code into
$topsrcdir/buildSrc -- has key disadvantages:
1) it pollutes the top-level $topsrcdir, and there's no way to change the
location of buildSrc (https://github.com/gradle/gradle/issues/2472);
2) it's complicated to have a dependent project
(mobile/android/annotations) expose its code via a buildSrc project;
3) using buildSrc at all appears to conflict with the Android-Gradle
plugin version that we are using.
Therefore, this commit does something much simpler: it adds a
Java-only project and uses the resulting Gradle "Jar" task and archive
output as input to the existing Gradle "generate JNI wrappers" task.
MozReview-Commit-ID: 2OyYLPneE1M
--HG--
extra : rebase_source : d99b74a0a1e0bb3e8f4d4540978328388e5c2e42
Some content in Makefile.in is removed because after this change, the
scripts no longer invoke the preprocessor and thus don't have unknown
dependencies anymore outside what is provided in their inputs array.
The order of exports.PREFERENCES in properties-db changes because the
data file has shorthands placed after longhands. The only usage of it
is in test_css-properties-db.js which doesn't care about the order.
MozReview-Commit-ID: AMjzTRf2HYN
--HG--
extra : rebase_source : 7976e48e7c7bba467d77a34ab0d7709cde1ecdf4
Some content in Makefile.in is removed because after this change, the
scripts no longer invoke the preprocessor and thus don't have unknown
dependencies anymore outside what is provided in their inputs array.
The order of exports.PREFERENCES in properties-db changes because the
data file has shorthands placed after longhands. The only usage of it
is in test_css-properties-db.js which doesn't care about the order.
MozReview-Commit-ID: AMjzTRf2HYN
--HG--
extra : rebase_source : f9db0659a81bea28b335806ac70e23dc0d36e493
MOZ_REPLACE_MALLOC_LINKAGE was added back when there were problems with
getting weak references working properly for replace-malloc.
Versions of OSX < 10.6 needed flat namespace, but aren't supported
anymore.
Versions of Xcode < 4.5 required flat namespace + a dummy library in
order to produce proper weak references. There is virtually nobody still
building with such an ancient toolchain.
Keeping those around doesn't /really/ hurt, except recent versions of
Xcode don't expose dyldinfo in /usr/bin, used for the configure test.
Consequently, MOZ_REPLACE_MALLOC_LINKAGE ended up being set to use the
dummy library setup, which, by using flat namespace, now causes harm in
bug 1356701, causing bug 1378332.
--HG--
extra : rebase_source : e3edc1f2cf905943c33fafeb631f2f88fc87167e
The Java Addons mechanism never got traction and is not Web Extensions
compatible. Removing it simplifies the product and the build system.
MozReview-Commit-ID: ABUxkqqMISa
--HG--
extra : rebase_source : 346f88882774f072316714cf637a54d771d81a9a
This creates "syms" targets that depend on the corresponding "target" for
directories containing shared libraries or programs. These targets are added
to the main compile graph in automation, and can be invoked through a special
"symbols" target. A future commit will use these targets to dump symbols for
shared libraries and programs during the compile tier.
MozReview-Commit-ID: KLuvmqsK4Zj
--HG--
extra : rebase_source : 8d76b999cb6fac8f11168ac6ebfb58774dfc2d3c
Per froydnj in bug 1186064 comment #23, "it makes sense to proceed with removing
MSVC 2013 support." This commit does that.
We also go a step further and require VS2015 Update 2 instead of just
update 1. This temporarily brings us down to just 1 officially supported
Visual Studio version. However, VS2015u3 was just released and is
unofficially supported.
Since MOZ_CRT is no longer set, references to it have been removed.
MozReview-Commit-ID: 8MUR6qLzQA5
--HG--
extra : rebase_source : 8f5061080a3d56dd484f9be03649fb65f0145f67
