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This commit implements documentation generation of the nomicon, the book, the
style guide, and the standalone docs. New steps were added for each one as well
as appropriate makefile targets for each one as well.
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* Fixes a warning with libc
* Brings in some new flag updates for various platforms through gcc-rs
* Otherwise routine updates here/there
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Also fix a bug where we didn't clean out previous nightlies
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This allows bootstrapping new platforms immediately in stage0
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These should all no longer be necessary as they've been folded into the
compiler.
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When cross compiling for a new host, we can't actually run the host compiler to
generate its own libs. In theory, however, all stage2 compilers (for any host)
will produce the same libraries, so we just require the build compiler to
produce the necessary host libraries and then we link those into place.
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This switches the defaults to ensure that everything is built with the build
compiler rather than the host compiler itself (which we're not guaranteed to be
able to run)
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Right now it's implicitly done as part of building the compiler, but this was
intended to be a standalone step to ensure we tracked what built what.
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Fixes `--step librustc`
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Currently all multi-host builds assume the the build platform can run the
`llvm-config` binary generated for each host platform we're creating a compiler
for. Unfortunately this assumption isn't always true when cross compiling, so we
need to handle this case.
This commit alters the build script of `rustc_llvm` to understand when it's
running an `llvm-config` which is different than the platform we're targeting for.
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Needs a different target to get built and also we apparently need to appease the
C++ compiler somehow.
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These flags aren't applicable to build scripts, and may actuall wreak havoc.
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This commit fixes a longstanding issue with the makefiles where all host
platforms bootstrap themselves. This commit alters the build logic for the
bootstrap to instead only bootstrap the build triple, and all other compilers
are compiled from that one compiler.
The benefit of this change is that we can cross-compile compilers which cannot
run on the build platform. For example our builders could start creating
`arm-unknown-linux-gnueabihf` compilers.
This reduces the amount of bootstrapping we do, reducing the amount of test
coverage, but overall it should largely just end in faster build times for
multi-host compiles as well as enabling a feature which can't be done today.
cc #5258
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This removes creating some extraneous directories and also fixes some submodule management with out of tree builds.
Closes #31619
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This commit implements documentation generation of the nomicon, the book, the
style guide, and the standalone docs. New steps were added for each one as well
as appropriate makefile targets for each one as well.
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Be sure to put the git command into the right directory when we run the
submodule management information.
Closes #31619
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The build bots already use job objects, and they don't support nested job
objects, and we shouldn't entirely bail out in this case anyway!
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Also add a `clean` target for the makefiles to blow away everything related to
the build. Note that this specifically does not tamper with:
* the LLVM build directory
* the directory of the bootstrap system
* the cached downloads of cargo/rustc
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This commit adds a `--enable-rustbuild` option to the configure script which
will copy a different `Makefile.in` into place to intercept all `make`
invocations.
Currently this makefile only has one target, but it's expected to be filled out
quite a bit over time!
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During the transition period where we're still using ./configure and makefiles,
read some extra configuration from `config.mk` if it's present. This means that
the bootstrap build should be configured the same as the original ./configure
invocation.
Eventually this will all be removed in favor of only storing information in
`config.toml` (e.g. the configure script will generate config.toml), but for now
this should suffice.
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This commit is the start of a series of commits which start to replace the
makefiles with a Cargo-based build system. The aim is not to remove the
makefiles entirely just yet but rather just replace the portions that invoke the
compiler to do the bootstrap. This commit specifically adds enough support to
perform the bootstrap (and all the cross compilation within) along with
generating documentation.
More commits will follow up in this series to actually wire up the makefiles to
call this build system, so stay tuned!
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