rustbuild: update the rust-src filter for compiler-rt
We wanted `src/compiler-rt/test` filtered from the `rust-src` package,
but that path is now `src/libcompiler_builtins/compiler-rt/test`. This
saves over half of the installed rust-src size. (50MB -> 22MB)
We wanted `src/compiler-rt/test` filtered from the `rust-src` package,
but that path is now `src/libcompiler_builtins/compiler-rt/test`. This
saves over half of the installed rust-src size. (50MB -> 22MB)
rustbuild: Avoid some extraneous rustc compiles on cross builds
This tweaks a few locations here and there to avoid compiling rustc too many times on our cross-builders on CI.
Closes https://github.com/rust-lang/rust/issues/44132
Fail ./x.py on invalid command
Make the ./x.py script fail when run with an invalid command, like:
```
./x.py nonsense
```
This helps in case of chaining multiple runs, eg.:
```
./x.py biuld && ./x.py test
```
include Cargo.{toml,lock} in rust-src tarball
The lock file is interesting because e.g. xargo could use it to build libstd against the same dependencies that were used for the main build. More generally speaking, just documenting in this form which exact dependencies should be used IMHO makes lots of sense.
I added the Cargo.toml mostly because having the lock without the toml feels odd. Of course, the toml contains references to paths that don't actually exist in the rust-src tarball. Not sure if that is considered a problem.
rustbuild: Rewrite the configure script in Python
This commit rewrites our ancient `./configure` script from shell into Python.
The impetus for this change is to remove `config.mk` which is just a vestige of
the old makefile build system at this point. Instead all configuration is now
solely done through `config.toml`.
The python script allows us to more flexibly program (aka we can use loops
easily) and create a `config.toml` which is based off `config.toml.example`.
This way we can preserve comments and munge various values as we see fit.
It is intended that the configure script here is a drop-in replacement for the
previous configure script, no functional change is intended. Also note that the
rationale for this is also because our build system requires Python, so having a
python script a bit earlier shouldn't cause too many problems.
Closes#40730Closes#43295Closes#42255Closes#38058Closes#32176
This commit rewrites our ancient `./configure` script from shell into Python.
The impetus for this change is to remove `config.mk` which is just a vestige of
the old makefile build system at this point. Instead all configuration is now
solely done through `config.toml`.
The python script allows us to more flexibly program (aka we can use loops
easily) and create a `config.toml` which is based off `config.toml.example`.
This way we can preserve comments and munge various values as we see fit.
It is intended that the configure script here is a drop-in replacement for the
previous configure script, no functional change is intended. Also note that the
rationale for this is also because our build system requires Python, so having a
python script a bit earlier shouldn't cause too many problems.
Closes#40730
Make the ./x.py script fail when run with an invalid command, like:
./x.py nonsense
This helps in case of chaining multiple runs, eg.:
./x.py biuld && ./x.py test
Discovered in #43767 it turns out the default MSBuild generator in CMake for
whatever reason isn't supporting many of the configuration options we give to
LLVM. To improve the contributor experience automatically enable Ninja if we
find it to ensure that "flavorful" configurations of LLVM work by default in
more situations.
Closes#43767
This controls the value of the crt-static feature used when building the
standard library for a target, as well as the compiler itself when that
target is the host.
They are required for linking it, even though it is a library, because
crtn.o in post_link_objects, as hardcoded in src/librustc_back/target/
linux_musl_base.rs, is added to the linker command line for both
executables and libraries.
Implement a temp redirect for cargo docs
As discussed in
https://github.com/rust-lang/cargo/issues/4040#issuecomment-321639074
This is a redirect meant to be replaced once cargo docs have been
converted to mdbook. We just want *a* URL to ride the trains for now so
that we can print doc.rust-lang.org/cargo in the paper book and
guarantee that it will go *somewhere* useful by the time the book is
printed.
Implemented as a meta redirect in HTML because we don't currently have
any google juice at doc.rust-lang.org/cargo to lose.
When I run `./x.py doc`, this creates a `build/x86_64-apple-darwin/doc/cargo/index.html` file that contains a meta redirect to doc.crates.io. As I understand rust-central-station to work, this should be what we need to make `doc.rust-lang.org/cargo` to work.
r? @alexcrichton and/or @steveklabnik
As discussed in
https://github.com/rust-lang/cargo/issues/4040#issuecomment-321639074
This is a redirect meant to be replaced once cargo docs have been
converted to mdbook. We just want *a* URL to ride the trains for now so
that we can print doc.rust-lang.org/cargo in the paper book and
guarantee that it will go *somewhere* useful by the time the book is
printed.
Implemented as a meta redirect in HTML because we don't currently have
any google juice at doc.rust-lang.org/cargo to lose.
Cleanup for "Support compiling rustc without LLVM (try 2)"
This includes a small patch to allow running tests without llvm. Also check if you are not trying to compile a dylib.
cc #42932
r? @alexcrichton
This fixes the bug we previously had where we'd build a libtest tool
after building a libstd tool and clear out the libstd tool. Since we
clear out all tools for a given stage on invocations of CleanTools after
lib{std, test, rustc} change, we need to make sure that all tools built
with that stage will be built after the clearing is done.
The fix contained here technically isn't perfect; there is still an edge
case of compiling a libstd tool, then compiling libtest, which will
clear out the libstd tool and it won't ever get rebuilt within that
session of rustbuild. This is where the caching system used today shows
it's problems -- in effect, all tools depend on a global counter of the
stage being cleared out. We can implement such a counter in a future
patch to ensure that tools are rebuilt as needed, but it is deemed
unlikely that it will be required in practice, since most if not all
tools are built after the relevant stage's std/test/rustc are built,
though this is only an opinion and hasn't been verified.
Some users of the build system change the git sha on every build due to
utilizing git to push changes to a remote server. This allows them to
simply configure that away instead of depending on custom patches to
rustbuild.
