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do not panic just because cargo failed
Currently, a rustc ICE during bootstrap shows *two* backtraces with `RUST_BACKTRACE`. Fix that by making bootstrap just exit when cargo fails. This matches what we do [when building a tool fails](https://github.com/rust-lang/rust/blob/master/src/bootstrap/tool.rs#L189) and [when other stuff (not called through `stream_cargo`, like `cargo test`) fails](https://github.com/rust-lang/rust/blob/master/src/build_helper/lib.rs#L43).
Fixes https://github.com/rust-lang/rust/issues/53379
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This updates emscripten to version 1.38.15, which is based on
LLVM 6.0.1.
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This commit removes all jemalloc related submodules, configuration, etc,
from the bootstrap, from the standard library, and from the compiler.
This will be followed up with a change to use jemalloc specifically as
part of rustc on blessed platforms.
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remove useless format!()s
remove redundant field names in a few struct initializations
pass slice instead of a vector to a function
use is_empty() instead of comparisons to .len()
No functional change intended.
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* Make it influence the behavior of the compiled rustc, rather than
just the rustc build system. That is, if verify_llvm_ir=true,
even manual invocations of the built rustc will verify LLVM IR.
* Enable verification of LLVM IR in CI, for non-deploy and
deploy-alt builds. This is similar to how LLVM assertions are
handled.
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Currently we ship sanitizer libraries as they're built, but these names
unfortunately conflict with the names of the sanitizer libraries
installed on the system. If a crate, for example, links in C code that
wants to use the system sanitizer and the Rust code doesn't use
sanitizers at all, then using `cargo` may accidentally pull in the
Rust-installed sanitizer library due to a conflict in names.
This change is intended to be entirely transparent for Rust users of
sanitizers, it should only hopefully improve our story with other users!
Closes #54134
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Let cargo handle that for us
Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
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Clean up dependency tracking in Rustbuild [2/2]
Make `clear_if_dirty` calls in `Builder::cargo` with stamp dependencies for the given Mode.
Continuation of #50904
Ref issue #50509
r? @Mark-Simulacrum
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This commit updates the debuginfo that is encoded in all of our released
artifacts by default. Currently it has paths like `/checkout/src/...` but these
are a little inconsistent and have changed over time. This commit instead
attempts to actually define the file paths in our debuginfo to be consistent
between releases.
All debuginfo paths are now intended to be `/rustc/$sha` where `$sha` is the git
sha of the released compiler. Sub-paths are all paths into the git repo at that
`$sha`.
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This allows clearing it out and building it separately from the
compiler. Since it's essentially a different and separate crate this
makes sense to do, each cargo invocation should generally happen in its
own directory.
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Its former contents are now in libcore.
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The best way to build a stage 2 rustc is now probably
./x.py build --stage 2 src/rustc # once
./x.py build --stage 2 --keep-stage 1 src/rustc
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Previously we'd attempt to recompile them and that would fail since
we've essentially not built the entire compiler yet, or we're faking
that fact. This commit should make us ignore the codegen backend build
as well.
Unlike the other compile steps, there is no CodegenBackendLink step that
we run here, because that is done later as a part of assembling the
final compiler and as an explicit function call.
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rename rustc's lld to rust-lld
to not shadow the system installed LLD when linking with LLD.
Before:
- `-C linker=lld -Z linker-flavor=ld.lld` uses rustc's LLD
- It's not possible to use a system installed LLD that's named `lld`
With this commit:
- `-C linker=rust-lld -Z linker-flavor=ld.lld` uses rustc's LLD
- `-C linker=lld -Z linker-flavor=ld.lld` uses the system installed LLD
we don't offer guarantees about the availability of LLD in the rustc sysroot so we can rename the tool as long as we don't break the wasm32-unknown-unknown target which depends on it.
r? @alexcrichton we discussed this before
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Previously, the --keep-stage argument would only function for compilers
that were depended on by future stages. For example, if trying to build
a stage 1 compiler you could --keep-stage 0 to avoid re-building the
stage 0 compiler. However, this is often not what users want in
practice.
The new implementation essentially skips builds all higher stages of the
compiler, so an argument of 1 to keep-stage will skip rebuilds of the
libraries, just linking them into the sysroot. This is unlikely to work
well in cases where metadata or similar changes have been made, but is
likely fine otherwise.
This change is somewhat untested, but since it shouldn't have any effect
except with --keep-stage, I don't see that as a large problem.
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Previously Cargo would hardlink all the dependencies into the "root" as
foo.dll and the `toplevel` array would get populated with these, but
that's no longer the case. Instead, cargo will only do this for the
final artifacts/final libraries.
Rustbuild is updated to continue looping through the artifacts mentioned
instead of early-returning. This should fix the bug.
@alexcrichton found the cause of this and suggested this fix.
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to not shadow the system installed LLD when linking with LLD.
Before:
- `-C linker=lld -Z linker-flavor=ld.lld` uses rustc's LLD
- It's not possible to use a system installed LLD that's named `lld`
With this commit:
- `-C linker=rust-lld -Z linker-flavor=ld.lld` uses rustc's LLD
- `-C linker=lld -Z linker-flavor=ld.lld` uses the system installed LLD
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Switch to bootstrapping from 1.27
It's possible the Float trait could be removed from core, but I couldn't tell whether it was intended to be removed or not. @SimonSapin may be able to comment more here; we can presumably also do that in a follow up PR as this one is already quite large.
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In #49289, rustc was changed to emit metadata for binaries, which made
it so that the librustc.rmeta file created when compiling librustc was
overwritten by the rustc-main compilation. This commit renames the
rustc-main binary to avoid this problem.
https://github.com/rust-lang/cargo/issues/5524 has also been filed to
see if Cargo can learn to warn on this situation instead of leaving it
for the user to debug.
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This deduplicates the LLVM building functionality from compile.rs and check.rs.
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These terminals generally don't support color.
Fixes #49191
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add a dist builder to build rust-std components for the THUMB targets
the rust-std component only contains the core and compiler-builtins (+c +mem) crates
cc #49382
- I'm not entirely sure if this PR alone will produce rust-std components installable by rustup or if something else needs to be changed
- I could have done the THUMB builds in an existing builder / image; I wasn't sure if that was a good idea so I added a new image
- I could build other crates like alloc into the rust-std component but, AFAICT, that would require calling Cargo a second time (one for alloc and one for compiler-builtins), or have alloc depend on compiler-builtins (#49503 will perform that change) *and* have alloc resurface the "c" and "mem" Cargo features.
r? @alexcrichton
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This reverts commit 14768f9b636ef345320ded41da5e9f3da7af3a81.
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the goal is to build, in a single Cargo invocation, several no-std crates that we want to put in the
rust-std component of no-std targets. The nostd crate builds these crates:
- core
- compiler-builtin (with the "c" and "mem" features enabled)
- alloc
- std_unicode
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This ensures that each build will support the testing design of "dry
running" builds. It's also checked that a dry run build is equivalent
step-wise to a "wet" run build; the graphs we generate when running are
directly compared node/node and edge/edge, both for order and contents.
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Ensures that test cases will be somewhat easier to write.
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the rust-std component only contains the core and compiler-builtins (+c +mem) crates
cc #49382
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This commit updates the `ToolBuild` step to stream Cargo's JSON messages, parse
them, and record all libraries built. If we build anything twice (aka Cargo)
it'll most likely happen due to dependencies being recompiled which is caught by
this check.
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This commit disables building documentation on cross-compiled compilers, for
example ARM/MIPS/PowerPC/etc. Currently I believe we're not getting much use out
of these documentation artifacts and they often take 10-15 minutes total to
build as it requires building rustdoc/rustbook and then also generating all the
documentation, especially for the reference and the book itself.
In an effort to cut down on the amount of work that we're doing on dist CI
builders in light of recent timeouts this was some relatively low hanging fruit
to cut which in theory won't have much impact on the ecosystem in the hopes that
the documentation isn't used too heavily anyway.
While initial analysis in #48827 showed only shaving 5 minutes off local builds
the same 5 minute conclusion was drawn from #48826 which ended up having nearly
a half-hour impact on the bots. In that sense I'm hoping that we can land this
and test out what happens on CI to see how it affects timing.
Note that all tier 1 platforms, Windows, Mac, and Linux, will continue to
generate documentation.
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rustbuild: Tweak where timing information goes
This commit tweaks where timing and step information is printed out as part of
the build, ensuring that we do it as close to the location where work happens as
possible. In rustbuild various functions may perform long blocking work as
dependencies are assembled, so if we print out timing information early on we
may accidentally time more than just the step we were intending to time!
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