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And make tests explicitly list their hosts and targets.
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This changes the behavior from *not* building for host whenever an
explicit target is specified. I find this much less confusing.
You can still disable host steps by passing an explicit empty list for
host.
Fixes #76990.
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Fix cross compiling dist/build invocations
I am uncertain why the first commit is not affecting CI. I suspect it's because we pass --disable-docs on most of our cross-compilation builders. The second commit doesn't affect CI because CI runs x.py dist, not x.py build.
Both commits are standalone; together they should resolve #76733. The first commit doesn't really fix that issue but rather just fixes cross-compiled x.py dist, resolving a bug introduced in #76549.
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This allows configuring the default stage for each sub-command individually.
- Normalize the stage as early as possible, so there's no confusion
about which to use.
- Don't add an explicit `stage` option in config.toml
This offers no more flexibility than `*_stage` and makes it confusing
which takes precedence.
- Always give `--stage N` precedence over config.toml
- Fix bootstrap tests
This changes the tests to go through `Config::parse` so that they test
the actual defaults, not the dummy ones provided by `default_opts`. To
make this workable (and independent of the environment), it does not
read `config.toml` for tests.
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rustc is a natively cross-compiling compiler, and generally none of our steps
should care whether they are using a compiler built of triple A or B, just the
--target directive being passed to the running compiler. e.g., when building for
some target C, you don't generally want to build two stds: one with a host A
compiler and the other with a host B compiler. Just one std is sufficient.
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It isn't practical to determine whether we'll build LLVM very early in the
pipeline, so move the ninja checking to a dynamic check.
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- Only set stage 2 in dist tests
- Add test for `x.py doc` without args
- Add test for `x.py build` without args
- Add test for `x.py build --stage 0`
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Uses --stage 2 for all the existing tests
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`rustc` allows passing in predefined target triples as well as JSON
target specification files. This change allows bootstrap to have the
first inkling about those differences. This allows building a
cross-compiler for an out-of-tree architecture (even though that
compiler won't work for other reasons).
Even if no one ever uses this functionality, I think the newtype
around the `Interned<String>` improves the readability of the code.
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Since its inception rustbuild has always worked in three stages: one for
libstd, one for libtest, and one for rustc. These three stages were
architected around crates.io dependencies, where rustc wants to depend
on crates.io crates but said crates don't explicitly depend on libstd,
requiring a sysroot assembly step in the middle. This same logic was
applied for libtest where libtest wants to depend on crates.io crates
(`getopts`) but `getopts` didn't say that it depended on std, so it
needed `std` built ahead of time.
Lots of time has passed since the inception of rustbuild, however,
and we've since gotten to the point where even `std` itself is depending
on crates.io crates (albeit with some wonky configuration). This
commit applies the same logic to the two dependencies that the `test`
crate pulls in from crates.io, `getopts` and `unicode-width`. Over the
many years since rustbuild's inception `unicode-width` was the only
dependency picked up by the `test` crate, so the extra configuration
necessary to get crates building in this crate graph is unlikely to be
too much of a burden on developers.
After this patch it means that there are now only two build phasese of
rustbuild, one for libstd and one for rustc. The libtest/libproc_macro
build phase is all lumped into one now with `std`.
This was originally motivated by rust-lang/cargo#7216 where Cargo was
having to deal with synthesizing dependency edges but this commit makes
them explicit in this repository.
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