Rollup of 10 pull requests #68474
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Rollup of 10 pull requests #68474
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-> `rustc --target armv7-none-eabi` will work also build rust-std (rustup) components for them -> `rustup target add armv7-none-eabi` will work
…D 13.0-CURRENT i386
rust-nightly has been failing to link since 2019-12-10 with variations of
```
= note: ld: error: relocation R_386_PC32 cannot be used against symbol __rust_probestack; recompile with -fPIC
>>> defined in /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libcompiler_builtins-6570a75fe85f0e1a.rlib(compiler_builtins-6570a75fe85f0e1a.compiler_builtins.2i519eqi-cgu.15.rcgu.o)
>>> referenced by std.4xivr03c-cgu.14
>>> std-9bd70afd58e204b7.std.4xivr03c-cgu.14.rcgu.o:(_$LT$alloc..boxed..Box$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$A$GT$$GT$::call_once::h1c78ed6e734a2bfc (.llvm.10122419023709863394)) in archive /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libstd-9bd70afd58e204b7.rlib
ld: error: relocation R_386_PC32 cannot be used against symbol __rust_probestack; recompile with -fPIC
>>> defined in /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libcompiler_builtins-6570a75fe85f0e1a.rlib(compiler_builtins-6570a75fe85f0e1a.compiler_builtins.2i519eqi-cgu.15.rcgu.o)
>>> referenced by std.4xivr03c-cgu.14
>>> std-9bd70afd58e204b7.std.4xivr03c-cgu.14.rcgu.o:(std::io::util::copy::h9115f048f2203467) in archive /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libstd-9bd70afd58e204b7.rlib
clang-cpp: error: linker command failed with exit code 1 (use -v to see invocation)
error: aborting due to previous error
error: could not compile `rustc_macros`.
```
Full log: http://beefy17.nyi.freebsd.org/data/head-i386-default/p523508_s356869/logs/rust-nightly-1.42.0.20200118.log
AFAICT it stopped building after bumping compiler_builtins to 0.1.22
in rust-lang#67110.
`TooGeneric` is encountered during WF checking when we cannot determine that a constant involving a generic parameter will always be evaluated successfully (rather than resulting in an error). In these cases, the burden of proof should be with the caller, so that we can avoid post-monomorphisation tim errors (which was the previous previous behaviour). This commit ensures that this situation produces a proper compiler error, rather than silently ignoring it or ICEing.
it needs some upstream changes in the build script of the compiler-builtins crate
The diagnostic for diagnostic for methods and trait provided
methods would only show the empty string:
error[E0277]: the `?` operator can only be used in that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
Handle the missing cases so it reads ``a method'' / ``an async
method'' / ``a trait method'' respectively.
Signed-off-by: Philipp Gesang <phg@phi-gamma.net>
Signed-off-by: Philipp Gesang <phg@phi-gamma.net>
As suggested by @Centril. Signed-off-by: Philipp Gesang <phg@phi-gamma.net>
We already have ownership of the base path, so no need to clone it (within Path::with_extension).
Clarify where the clippy used in `./x.py clippy` is coming from. It uses whatever clippy binary was installed via rustup, cargo-install or otherwise and does NOT use the binary generated by `./x.py build src/tools/clippy`.
Adds a compiler option to allow rustc compile a crate without linking. With this flag, rustc serializes codegen_results into a .rlink file.
[experiment] Add `-Z no-link` flag Adds a compiler option to allow rustc compile a crate without linking. With this flag, `rustc` serializes codegen_results into a `.rlink` file. Part of Issue rust-lang#64191
…crichton add bare metal ARM Cortex-A targets to rustc -> `rustc --target armv7a-none-eabi` will work also build rust-std (rustup) components for them -> `rustup target add armv7a-none-eabi` will work this completes our bare-metal support of ARMv7 cores on stable Rust (by 1.42 or 1.43) (these target specifications have been tested on a real (no emulation / QEMU) [Cortex-A7 core](https://github.com/iqlusioninc/usbarmory.rs/))
…ichton
Unbreak linking with lld 9 on FreeBSD 13.0-CURRENT i386
Add -Wl,-znotext to default linker flags to link with lld 9 on FreeBSD 13.0-CURRENT i386 where rust-nightly has been failing to link since 2019-12-10 with variations of
```
= note: ld: error: relocation R_386_PC32 cannot be used against symbol __rust_probestack; recompile with -fPIC
>>> defined in /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libcompiler_builtins-6570a75fe85f0e1a.rlib(compiler_builtins-6570a75fe85f0e1a.compiler_builtins.2i519eqi-cgu.15.rcgu.o)
>>> referenced by std.4xivr03c-cgu.14
>>> std-9bd70afd58e204b7.std.4xivr03c-cgu.14.rcgu.o:(_$LT$alloc..boxed..Box$LT$F$GT$$u20$as$u20$core..ops..function..FnOnce$LT$A$GT$$GT$::call_once::h1c78ed6e734a2bfc (.llvm.10122419023709863394)) in archive /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libstd-9bd70afd58e204b7.rlib
ld: error: relocation R_386_PC32 cannot be used against symbol __rust_probestack; recompile with -fPIC
>>> defined in /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libcompiler_builtins-6570a75fe85f0e1a.rlib(compiler_builtins-6570a75fe85f0e1a.compiler_builtins.2i519eqi-cgu.15.rcgu.o)
>>> referenced by std.4xivr03c-cgu.14
>>> std-9bd70afd58e204b7.std.4xivr03c-cgu.14.rcgu.o:(std::io::util::copy::h9115f048f2203467) in archive /wrkdirs/usr/ports/lang/rust-nightly/work/rustc-nightly-src/build/i686-unknown-freebsd/stage1/lib/rustlib/i686-unknown-freebsd/lib/libstd-9bd70afd58e204b7.rlib
clang-cpp: error: linker command failed with exit code 1 (use -v to see invocation)
error: aborting due to previous error
error: could not compile `rustc_macros`.
```
Full log: http://beefy17.nyi.freebsd.org/data/head-i386-default/p523508_s356869/logs/rust-nightly-1.42.0.20200118.log
AFAICT it stopped building after bumping compiler_builtins to 0.1.22 in rust-lang#67110.
Make `TooGeneric` error in WF checking a proper error `TooGeneric` is encountered during WF checking when we cannot determine that a constant involving a generic parameter will always be evaluated successfully (rather than resulting in an error). In these cases, the burden of proof should be with the caller, so that we can avoid post-monomorphisation tim errors (which was the previous previous behaviour). This commit ensures that this situation produces a proper compiler error, rather than silently ignoring it or ICEing. Fixes rust-lang#66962. r? @eddyb
Micro-optimize OutputFilenames For example, its methods consume 6% of time during debug-compiling a `warp` example:  This PR optimize them a bit by using `PathBuf::set_extension` instead of `Path::with_extension`, to avoid cloning `PathBuf` excessively.
Export weak symbols used by MemorySanitizer Export weak symbols defined by MemorySanitizer instrumentation, which are used to implement `-Zsanitizer-memory-track-origins` and `-Zsanitizer-recover=memory`. Previously, when using fat LTO, they would internalized and eliminated. Fixes rust-lang#68367.
Fix try-op diagnostic in E0277 for methods
For methods the try-op diagnostic displays the empty string where
it has more descriptive strings like “a function” otherwise:
error[E0277]: the `?` operator can only be used in that returns `Result` or `Option` (or another type that implements `std::ops::Try`)
^^
| | ^^ cannot use the `?` operator in that returns `()`
^^
I’m seeing this on nightly (rustc 1.42.0-nightly (b5a3341
2020-01-20)) and [on the playpen](https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=0e7ce7792c2aceb8056941710d539124).
The changeset add strings for impl methods and trait provided
methods and test cases for the option type.
…lacrum bootstrap: update clippy subcmd decription Clarify where the clippy used in `./x.py clippy` is coming from. It uses whatever clippy binary was installed via rustup, cargo-install or otherwise and does NOT use the binary generated by `./x.py build src/tools/clippy`.
…ulacrum pprust: use as_deref Some drive-by cleanup.
librustc_mir: don't allocate vectors where slices will do.
|
@bors r+ p=10 rollup=never |
|
📌 Commit bfac73c has been approved by |
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Jan 23, 2020
Rollup of 10 pull requests Successful merges: - #67195 ([experiment] Add `-Z no-link` flag) - #68253 (add bare metal ARM Cortex-A targets to rustc) - #68361 (Unbreak linking with lld 9 on FreeBSD 13.0-CURRENT i386) - #68388 (Make `TooGeneric` error in WF checking a proper error) - #68409 (Micro-optimize OutputFilenames) - #68410 (Export weak symbols used by MemorySanitizer) - #68425 (Fix try-op diagnostic in E0277 for methods) - #68440 (bootstrap: update clippy subcmd decription) - #68441 (pprust: use as_deref) - #68462 (librustc_mir: don't allocate vectors where slices will do.) Failed merges: r? @ghost
|
☀️ Test successful - checks-azure |
This was referenced Jan 23, 2020
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Successful merges:
-Z no-linkflag #67195 ([experiment] Add-Z no-linkflag)TooGenericerror in WF checking a proper error #68388 (MakeTooGenericerror in WF checking a proper error)Failed merges:
r? @ghost