libtest: add a --skip flag to the test runner
This flag takes a FILTER argument and instructs the test runner to skip
the tests whose names contain the word FILTER. --skip can be used
several times.
---
My motivation for submitting this is that while using [smoke] to run `std` unit tests for cross
targets I found that a few of the tests always fail due to limitations in QEMU (it can't handle too
many threads) and I'd like to skip these problematic tests from the command line to be able to run
the rest of the unit tests.
[smoke]: https://github.com/japaric/smoke
I know there is another mechanism to skip tests: `#[ignore]` but this doesn't work in my use case
because I can't (easily) modify the source of the standard libraries to `#[ignore]` some tests. And
even if I could, the change would involve conditionally ignoring some tests for some targets but
that's not a perfect solution because those tests should pass if executed on real hardware so they
should not be `#[ignored]` in that scenario.
r? @alexcrichton
cc @brson
rustc: Use a special filename for macros 1.1
This "special filename" is surrounded by `<>` to ensure that
`FileMap::is_real_file` returns `false`. This way the "files" parsed here aren't
emitted as dep info `.d` files and don't confuse Cargo about non-existent files.
Closes#36625
Now a target can define its panic strategy in its specification. If a
user doesn't specify a panic strategy via the command line, i.e. '-C
panic', then the compiler will use the panic strategy defined by the
target specification.
Custom targets can pick their panic strategy via the "panic-strategy"
field of their target specification JSON file. If omitted in the
specification, the strategy defaults to "unwind".
closes#36647
This commit alters the expansion order of custom macros-1.1 style `#[derive]`
modes. Instead of left-to-right the expansion now happens in three categories,
each of which is internally left-to-right:
* Old-style custom derive (`#[derive_Foo]`) is expanded
* New-style custom derive (macros 1.1) is expanded
* Built in derive modes are expanded
This gives built in derive modes maximal knowledge about the struct that's being
expanded and also avoids pesky issues like exposing `#[structural_match]` or
`#[rustc_copy_clone_marker]`.
cc #35900
This "special filename" is surrounded by `<>` to ensure that
`FileMap::is_real_file` returns `false`. This way the "files" parsed here aren't
emitted as dep info `.d` files and don't confuse Cargo about non-existent files.
Closes#36625
emit feature help in cheat mode (fix nightlies)
This should fix the `distcheck` failure in the latest nightly.
cc #36539
It's probably not ideal to check the environment that often and the code ist duplicated from `librustc/session/config.rs` but this was the easiest fix I could think of.
A cleaner solution would probably be to move the `unstable_features` from `Options` to `ParseSess` and change the `diag` parameter of `emit_feature_err` to take `ParseSess` instead of a `Handler`.
When getaddrinfo returns EAI_SYSTEM retrieve actual error from errno.
Fixes issue #36546. This change also updates libc to earliest version
that includes EAI_SYSTEM constant.
Previously, in cases where `EAI_SYSTEM` has been returned from getaddrinfo, the
resulting `io::Error` would be broadly described as "System error":
Error { repr: Custom(Custom { kind: Other, error: StringError("failed to lookup address information: System error") }) }
After change a more detailed error is crated based on particular value of
errno, for example:
Error { repr: Os { code: 64, message: "Machine is not on the network" } }
The only downside is that the prefix "failed to lookup address information" is
no longer included in the error message.
librustdoc refactoring and cleanup.
See each commit for more information. Biggest changes here is the addition of a `passes` module and each pass now lives in its own submodule.
Haiku: Initial work at OS support
These changes should be non-invasive to non-Haiku platforms. These patches were hand reworked from Neil's original Rust 1.9.0 patches. I've done some style cleanup and design updates along the way.
There are a few small additional patches to libc, rust-installer and compiler-rt that will be submitted once this one is accepted.
Haiku can be compiled on Linux, and a full gcc cross-compiler with a Haiku target is available, which means bootstrapping should be fairly easy. The patches here have already successfully bootstrapped under our haiku x86_gcc2 architecture. http://rust-on-haiku.com/wiki/PortingRust
I'll be focusing on our more modern gcc5 x86 and x86 architectures for now.
As for support, we're not seeking official support for now. We understand Haiku isn't a top-tier OS choice, however having these patches upstream greatly reduces the amount of patchwork we have to do. Mesa has Haiku code upstream, and we submit patches to keep it going. Mesa doesn't test on Haiku and we're ok with that :-)
rustdoc css: Put `where` in trait listings on a new line
This is about the gray area at the top of a trait's documentation page,
that lists all methods and their signatures. A big trait page like
Iterator is very crowded without this tweak.
