Add relro-level tests
The `relro-level` debugging flag was added in #43170 which was merged in July 2017. This PR moves this flag to be a proper codegen flag.
First of all, the lint is specific for type aliases. Second, it turns out the
bounds are not entirely ignored but actually used when accessing associated
types. So change the wording of the lint, and adapt its name to reality.
The lint has never been on stable or beta, so renaming is safe.
Also, tweak the test for ignored type aliases such that replacing the type alias
by a newtype struct leads to a well-formed type definition, and errors when used
the way the type alias is used.
rustbuild: Pass `-j1` to OpenSSL `make install`
We explicitly do this when compiling OpenSSL itself due to weird racy issues in
its build system, and now we've started seeing issues in the `make install` step
so let's try and see what ratcheting down the parallelism does here...
We explicitly do this when compiling OpenSSL itself due to weird racy issues in
its build system, and now we've started seeing issues in the `make install` step
so let's try and see what ratcheting down the parallelism does here...
travis: Upgrade dist builders for OSX
This commit upgrades the dist builders for OSX to Travis's new `xcode9.3-moar`
image which has 3 cores available to it instead of 2. This should help us
provide speedier builds on OSX and hit timeouts less in theory!
Note that historically the dist builders for OSX have been a different version
than the ones that are running tests. I had forgotten why this was the case and
digging around brought up 307615567 where apparently Xcode 8 wasn't able to
compile LLVM with `MACOSX_DEPLOYMENT_TARGET=10.7` which we desired. On a whim I
gave this PR a spin and it [looks like][green] this has since been fixed (maybe
in LLVM?). In any case those green builds should hopefully mean that we can
safely upgrade and get faster infrastructure to boot.
This commit also includes an upgrade of OpenSSL. This is not done for security
reasons but rather build system reasons. Originally builds with the new image
[did not succeed][red] due to weird build failures in OpenSSL, but upgrading
seems to have made the spurious errors go away to here's to also hoping that's
fixed!
[green]: https://travis-ci.org/rust-lang/rust/builds/351353412
[red]: https://travis-ci.org/rust-lang/rust/builds/350969248
This commit removes some ThinLTO/codegen unit cruft primarily only needed during
the initial phase where we were adding ThinLTO support to rustc itself. The
current bootstrap compiler knows about ThinLTO and has it enabled by default for
multi-CGU builds which are also enabled by default. One CGU builds (aka
disabling ThinLTO) can be achieved by configuring the number of codegen units to
1 for a particular builds.
This also changes the defaults for our dist builders to go back to multiple
CGUs. Unfortunately we're seriously bleeding for cycle time on the bots right
now so we need to recover any time we can.
This commit upgrades the dist builders for OSX to Travis's new `xcode9.3-moar`
image which has 3 cores available to it instead of 2. This should help us
provide speedier builds on OSX and hit timeouts less in theory!
Note that historically the dist builders for OSX have been a different version
than the ones that are running tests. I had forgotten why this was the case and
digging around brought up 307615567 where apparently Xcode 8 wasn't able to
compile LLVM with `MACOSX_DEPLOYMENT_TARGET=10.7` which we desired. On a whim I
gave this PR a spin and it [looks like][green] this has since been fixed (maybe
in LLVM?). In any case those green builds should hopefully mean that we can
safely upgrade and get faster infrastructure to boot.
This commit also includes an upgrade of OpenSSL. This is not done for security
reasons but rather build system reasons. Originally builds with the new image
[did not succeed][red] due to weird build failures in OpenSSL, but upgrading
seems to have made the spurious errors go away to here's to also hoping that's
fixed!
[green]: https://travis-ci.org/rust-lang/rust/builds/351353412
[red]: https://travis-ci.org/rust-lang/rust/builds/350969248
rustbuild: Fix MSBuild location of `llvm-config.exe`
For LLD integration the path to `llvm-config` needed to change to inside the
build directory itself (for whatever reason) but the build directory is
different on MSBuild than it is on `ninja` for MSVC builds, so the path to
`llvm-config.exe` was actually wrong and not working!
This commit removes the `Build::llvm_config` function in favor of the source of
truth, the `Llvm` build step itself. The build step was then updated to find the
right build directory for MSBuild as well as `ninja` for where `llvm-config.exe`
is located.
Closes#48749
See #48431 for discussion as to why this was necessary and what we hoped to
accomplish. A brief summary:
- the first implementation of 2-phase borrows was hard to limit in the way we
wanted. That is, it was too good at accepting all 2-phase borrows rather than
just autorefs =)
- Numerous diagnostic regressions were introduced by 2-phase borrow support
which were difficult to fix
The new output format is perhaps a little more readable. As a bonus, we get
labels on the outgoing edges to more easily corroborate the dataflow with the
plain MIR graphviz output.
For LLD integration the path to `llvm-config` needed to change to inside the
build directory itself (for whatever reason) but the build directory is
different on MSBuild than it is on `ninja` for MSVC builds, so the path to
`llvm-config.exe` was actually wrong and not working!
This commit removes the `Build::llvm_config` function in favor of the source of
truth, the `Llvm` build step itself. The build step was then updated to find the
right build directory for MSBuild as well as `ninja` for where `llvm-config.exe`
is located.
Closes#48749
Warn about ignored generic bounds in `for`
This adds a new lint to fix#42181. For consistency and to avoid code duplication, I also moved the existing "bounds in type aliases are ignored" here.
Questions to the reviewer:
* Is it okay to just remove a diagnostic error code like this? Should I instead keep the warning about type aliases where it is? The old code provided a detailed explanation of what's going on when asked, that information is now lost. On the other hand, `span_warn!` seems deprecated (after this patch, it has exactly one user left!).
* Did I miss any syntactic construct that can appear as `for` in the surface syntax? I covered function types (`for<'a> fn(...)`), generic traits (`for <'a> Fn(...)`, can appear both as bounds as as trait objects) and bounds (`for<'a> F: ...`).
* For the sake of backwards compatibility, this adds a warning, not an error. @nikomatsakis suggested an error in https://github.com/rust-lang/rust/issues/42181#issuecomment-306924389, but I feel that can only happen in a new epoch -- right?
Cc @eddyb
Since #47964 was merged, 64-bit mips started passing all structures
using 64-bit chunks regardless of their contents. The
repr-transparent-aggregates tests needs updating to cope with this.
Modify part of `column!` documentation.
Just like `line!` documentation, I've replaced:
> The returned column is not the invocation of the `column!` macro itself
By
> The returned column is *not necessarily* the line of the `column!` invocation itself
See #46997.
Modify part of `line!` documentation.
In accordance with #46997, I've replaced:
> The returned line is not the invocation of the line! macro itself [...]
By
> The returned line is *not necessarily* the line of the `line!` invocation itself [...]
