Our current build system support for Rust compiles any Rust crate into a
so-called staticlib, which is a static library (.a file) that includes
the Rust runtime. That staticlib is then linked into libxul. For
supporting multiple crates, this approach breaks down, as linking
multiple copies of the Rust runtime is going to fail.
For supporting multiple crates, the approach taken here is to compile
each crate into a so-called rlib, which is essentially a staticlib
without the Rust runtime linked in. The build system takes note of
every crate destined for linking with libxul (treating them like static
libraries generated from C/C++ files), and generates a super-crate,
whimsically named "rul", that is compiled as a staticlib (so as to
include the Rust runtime) and then linked into libxul. Thus only one
copy of the Rust runtime is included, and the Rust compiler can take
care of any inter-crate dependencies.
This patch currently only supports Rust code in shared libraries, not in
binaries.
The format provided to the build system by the manifest parser is highly redundant:
every test lists all variables for that test, and many tests use a large
support-files entry in DEFAULT that ends up in individual test objects. This
patch stores these DEFAULTS per-manifest rather than per-test to save disk
space, resulting in about a ~22mb smaller all-tests.json file. The
in-memory representation of tests is not changed by this patch, as the defaults
are again propagated to individual tests as all-tests.json is read by the test
resolver.
MozReview-Commit-ID: CEJaevfS5s7
imply_option has no effect when the resolved value is None, so the same
logic can be applied when checking for unknown implied options.
This allows to imply options that may not always exist (because they are
in a configure file that is optionally included).
Ideally, it would be better not to do this, but until we have something
better than optionally included configure files for
--disable-compile-environment, this is a necessary evil.
So far, everything was essentially executed at "declaration". This
made the sandbox code simpler, but to improve on the tooling around
python configure (for tests and introspection), we need to have more
flexibility, which executing everything at declaration doesn't give.
With this change, only @depends functions depending on --help, as
well as templates, are executed at the moment the moz.configure
files are included in the sandbox. The remainder is executed at the
end.
Whether it uses locale._parse_localename or nl_langinfo makes it have completely
different results in weird and/or widespread locale settings (LC_ALL=UTF-8 or
LC_ALL=C).
Check if the INSIDE_EMACS environment variable is set and change the
log level to WARNING to not confuse the emacs/mi with logging messages.
MozReview-Commit-ID: 5AWZ6swGJsE
--HG--
extra : transplant_source : b%24%8Ff6%968%8A%02%E2%07%DD%C6Y9E%CB%7C.%E4
This requires a change to how we process test manifests in the build system:
now, whenever we see a support file mentioned in a manifest, we require that
file isn't already in that test's support files, but if we see a support file
that was already seen in some other test, the entry is ignored, but it is not
an error. As a result of this change, several duplicate support-files entries
needed to be removed.
MozReview-Commit-ID: G0juyxzcaB8
--HG--
rename : testing/mozbase/manifestparser/tests/test_default_skipif.py => testing/mozbase/manifestparser/tests/test_default_overrides.py
Our current build system support for Rust compiles any Rust crate into a
so-called staticlib, which is a static library (.a file) that includes
the Rust runtime. That staticlib is then linked into libxul. For
supporting multiple crates, this approach breaks down, as linking
multiple copies of the Rust runtime is going to fail.
For supporting multiple crates, the approach taken here is to compile
each crate into a so-called rlib, which is essentially a staticlib
without the Rust runtime linked in. The build system takes note of
every crate destined for linking with libxul (treating them like static
libraries generated from C/C++ files), and generates a super-crate,
whimsically named "rul", that is compiled as a staticlib (so as to
include the Rust runtime) and then linked into libxul. Thus only one
copy of the Rust runtime is included, and the Rust compiler can take
care of any inter-crate dependencies.
This patch currently only supports Rust code in shared libraries, not in
binaries. The handling for the rul crate is placed in the common
backend, with a special hook for derived backends to handle shared
library objects.
When reading config.log, with old-configure output, we may get non-ascii
strings, but that currently fails because we're using plain open() to
read it. So use encoded_open() instead (which does the same job for
other files in the same script).
Because the build system can be encapsulated in mach, python configure
can have a pipe as stdout/stderr, and in that case, sys.stdout/stderr
have an ascii encoding, failing to print out anything that doesn't
fit in ascii, consequently failing to print the things we've read from
config.log. So reopen stdout and stderr with the right encoding in
the configure output handler.
This moves test installation for test files out of the monolithic install
manifest for $objdir/_tests, and determines the test and support files
to install based on the object derived from all-tests.json. Additionally,
the files resulting from TEST_HARNESS_FILES are installed, as some tests
will depend on them.
As a result, the time to install tests when invoking the test runner will
scale with the number of tests requested to run rather than the entire set
of tests in the tree, resulting in significantly less overhead.
MozReview-Commit-ID: LeIrUVh1yD4
This extracts the logic from the emitter that handles support files in ini
manifests to a seperate function in testing.py, so that this logic can be
re-used to determine how to install all the files necessary to run a particular
test fon the corresponding object in all-tests.json.
MozReview-Commit-ID: GSEhEGm09IL
Nathan Froyd
Mike Hommey
Chris Manchester
Mike Shal
Chris Pearce
Andreas Farre
Sebastian Hengst
George Wright
Ryan VanderMeulen