For linking static libraries, rustc will use whatever `cc` it finds (or
the equivalent on Windows). For our purposes, however, `cc` is not what
we use to link and we may have additional options we would like to pass
to the linker.
To do this, we need to tell Cargo about our alternate linker (currently
only used for target compilations, on the theory that the host compiler
rustc finds is probably good enough) and we also need to pass our linker
options into the process. We do this with environment variables, which
is not a great solution, but works surprisingly well.
This alternate linker is disabled for ASan builds due to peculiar
crashes when running Rust build scripts and for Windows, because we
don't do any interesting cross-compiling there.
This change paves the way for injecting target- or host-specific
environment variables for a particular `cargo build` invocation. Doing
this is not strictly necessary: all of our current `cargo build`
invocations use mostly target-specific environment
variables (e.g. PKG_CONFIG_ALLOW_CROSS). But separating things out
makes the code notationally cleaner and also avoids weirdness when
target==host.
rustc generates .lib files for its libraries when compiling for Windows
(even using MinGW on Linux). But MinGW expects .a files. So we add in
rust-specific prefix and suffixes so MinGW builds can find the libs that
rustc generates. (And the RUST_LIB- variables default to the same vales
as the LIB_ variables otherwise.)
MozReview-Commit-ID: ClsA0YuJaxh
--HG--
extra : rebase_source : 7b46460c94ceb34b7a5a302ce91d3f1dca600041
By using $(REPORT_BUILD) instead of just echoing the filename, there is
no change during a regular build without REBUILD_CHECK, but specifying
REBUILD_CHECK in the environment will show which files triggered an .xpt
to rebuild. This is helpful in debugging why these files may be built
unnecessarily.
MozReview-Commit-ID: GGNaKAl02Ea
--HG--
extra : rebase_source : 098a81265deed9afc0b284d9863f18ebd74fda33
Instead of using the -i flag to clean out the entire set of environment
variables, we explicitly just clear out the variables that are affected by
32- vs 64-bit builds in vcvars.bat. This still allows cargo to use it's
internal autodetection to do host/target builds as it wants when cross-compiling,
but also allows other things that rely on include directories and so on to
work properly.
MozReview-Commit-ID: 99SECKv1zQa
--HG--
extra : rebase_source : 2c2a7d79201b66ac3262afcc5f060936ca2e8fa2
This change brings Cargo closer to what our C/C++ build already does,
and some forms of Cargo failure are only diagnosed when you pass
`--verbose`, so let's eliminate that extra step for people.
For people working on Rust code, compiling in debug mode (Cargo's "dev"
profile) is convenient: debug assertions are turned on, optimization is
turned off, and parallel compilation inside of rustc itself can be
used. These things make the build faster and the debugging experience
more pleasant.
To obtain that currently, one needs to --enable-debug at the Gecko
toplevel, which turns on debug assertions for the entire browser, which
makes things run unreasonably slowly. So it would be desirable to be
able to turn *off* debug mode for the entirety of the browser, but turn
on debug mode for the Rust code only.
Hence this added switch, --enable-rust-debug, which does what it
suggests and defaults to the value of --enable-debug. For our own
sanity and because we judge it a non-existent use case, we do not
support --enable-debug --disable-rust-debug.
This commit moves symbol dumping to the compile tier, to be run via "syms"
targets. Tracking files are used for the sake of incremental builds, because
dump_syms may genearate multiple outputs whose paths are not known ahead of
time.
Minimal changes to symbolstore.py are made here. More extensive
simplifications will be made in a future commit on the basis of symbolstore.py
handling one file at a time.
MozReview-Commit-ID: 3mOP8A6Y7iM
--HG--
extra : rebase_source : bfe97afcdfc05b9e79f01577701c83e8b00eb4e9
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
This prevents the variables set in vcvars.bat from causing build failures when
cargo tries to process build scripts in an environment where the default rust
toolchain doesn't match the MozillaBuild shell (in terms of 32-bit or 64-bit).
MozReview-Commit-ID: 5VRnQToYUYf
--HG--
extra : rebase_source : 4ac11f13e17ab04e70c7cb6f60ff46865027f506
VPATH applies to everything, but vpath applies to files matching the
pattern it's given.
--HG--
extra : rebase_source : 17339820e34f4d2f3d4ddde1a8a4325e92bfdb9e
The code doing that was already excluding OSX, so we obviously don't
need it on OSX. On FreeBSD, afaict, USDT (userspace dtrace) probes don't
require that extra ELF object. Solaris presumably does, but the 6 years
old bug 702179 says it's not been working for that long, and configure
doesn't support Solaris targets anyways.
Keeping this build system code working past the changes coming in bug
1262241 is not guaranteed and can't be tested, so I'd rather get rid of
effectively dead code rather than trying to maybe not break it while
moving it.
--HG--
extra : rebase_source : b41ab77804c17529e2580ced8e8b5fd302ff7831
This is a similar issue to bug 582910 which the stack isn't big enough
to run the tests that recurse deeply. Set it 3x larger because the
offical site states they've seen up to 3x stack memory increase for
ASan, also the number was confirmed by the measurements in bug
1259796.
MozReview-Commit-ID: FLASlkVrEUM
--HG--
extra : rebase_source : 3e82439e3df7b1e2fa1759c9693bd197431c9f71
sutagent is no longer built or used; devicemanagerSUT is completely
unused. After this change, devicemanagerADB is the only implementation of
devicemanager, and test harness options like --dm_trans are eliminated.
Nathan Froyd
Tom Ritter
Mike Shal
Robert O'Callahan
Kartikaya Gupta
Dragana Damjanovic
Mike Hommey
Sebastian Hengst
Chris Manchester
André Bargull
Carsten "Tomcat" Book
Michael Layzell
Wes Kocher
Jeff Gilbert
Iris Hsiao
Jan Beich
Tooru Fujisawa
Ting-Yu Chou
Xidorn Quan
Geoff Brown
David Major
Makoto Kato