Do some cleanup of doc/index.md
I think a lot of people get to this landing page from `rustup doc`, and it's a bit tricky to find some useful information. I attempted to clean it up here a bit, from the commit message:
- Add quick link to API docs
- Add marker for external links, to help offline users
- Add information about using 'cargo doc' and the playground
- Clean up some of the wording
- Update body & header style to match rustdoc defaults
- Bump heading levels so main page header is 1, others are 2 (all were level 1 before)
Do not panic when analyzing the malformed origin of a format string
Fixes#10148. This will trigger only when generating format strings while accepting weird things in a procedural macro and setting the span to something which is not a string.
changelog: none
Split `x setup` sub-actions to CLI arguments
Closes#107846
This adds a new `none` profile option which simply skips the `config.toml` step. It also adds `hook` and `vscode` subcommands, for installing the pre-push hook and getting `settings.json` respectively.
Implement -Zlink-directives=yes/no
`-Zlink-directives=no` will ignored `#[link]` directives while compiling a crate, so nothing is emitted into the crate's metadata. The assumption is that the build system already knows about the crate's native dependencies and can provide them at link time without these directives.
This is another way to address issue # #70093, which is currently addressed by `-Zlink-native-libraries` (implemented in #70095). The latter is implemented at link time, which has the effect of ignoring `#[link]` in *every* crate. This makes it a very large hammer as it requires all native dependencies to be known to the build system to be at all usable, including those in sysroot libraries. I think this means its effectively unused, and definitely under-used.
Being able to control this on a crate-by-crate basis should make it much easier to apply when needed.
I'm not sure if we need both mechanisms, but we can decide that later.
cc `@pcwalton` `@cramertj`
[breaking change] Remove a rustdoc back compat warning
This warning was introduced in https://github.com/rust-lang/rust/pull/62855 for users who use `rustdoc` directly on proc macro crates (instead of using `cargo doc`) without passing `--crate-type proc-macro` (which `cargo doc` passed automatically).
add support of RustyHermit's BSD socket layer
RustyHermit is a tier 3 platform and publishes a new kernel interface. The new version supports a common BSD socket layer. By supporting this interface, the implementation of `std` can be harmonized to other operating systems. In `sys_common/mod.rs` we remove only a special case for RustyHermit. All changes are done in the RustyHermit specific directories.
To realize this socket layer, the handling of file descriptors is also harmonized to other operating systems.
Get Miri working on ARM
- Add a shim for `llvm.arm.hint`, which is required by `core::hint::spin_loop` on `arm` targets. The shim simply calls `yield_active_thread` on a YIELD hint, just like the shim for `llvm.aarch64.isb` that's already present.
- Change the signature of `miri_host_to_target_path` to use `c_char` instead of `i8`, to make it compatible with `CStr` on targets where `c_char` is unsigned. The implementation of `miri_host_to_target_path` accesses the memory as bytes and does not need to be adjusted.
- Enable ARM targets in CI. Specifically, `aarch64-unknown-linux-gnu` and `arm-unknown-linux-gnueabi` on the Linux host.
Since all tests also pass for `aarch64-unknown-linux-gnu` I took the liberty of adding that target to CI as well.
Fixes#2791
Wrap missing provider message correctly
Fixes#108429
```
error: internal compiler error: compiler/rustc_middle/src/ty/query.rs:441:1: `tcx.trigger_delay_span_bug(DefId(0:3 ~ test[78c5]::main))` is not supported for local crate;
hint: Queries can be either made to the local crate, or the external crate. This error means you tried to use it for one that's not supported.
If that's not the case, trigger_delay_span_bug was likely never assigned to a provider function.
thread 'rustc' panicked at 'Box<dyn Any>', /home/ec2-user/rust3/compiler/rustc_errors/src/lib.rs:1651:9
stack backtrace:
0: 0x7f51870926d7 - std::backtrace_rs::backtrace::libunwind::trace::hb0876bb39e7adf0d
at /home/ec2-user/rust3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
1: 0x7f51870926d7 - std::backtrace_rs::backtrace::trace_unsynchronized::h1bcab1313827007b
at /home/ec2-user/rust3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7f5187077e07 - std::sys_common::backtrace::_print_fmt::h262d2a62279fa102
at /home/ec2-user/rust3/library/std/src/sys_common/backtrace.rs:65:5
```
support `x fmt` for sub and outside of rust directories
This PR makes `x fmt` to be succesfully work from sub or outside dir of rust.
The following cases are tested and the results were successful.
```sh
# from rust/library directory
../x fmt compiler --check
../x fmt compiler/rustc
# from outside of rust directory
../../rust/x fmt library/std library/core --check
../../rust/x fmt library/std
```
Resolves#108004
r? ``@albertlarsan68``
Update `fuchsia-test-runner.py` and docs
This updates the test runner to the latest version of the SDK and fixes debugging support for Rust source code.
r? ``@tmandry``
Move some std tests from `tests/ui-fulldeps` into `library/std`
This allows them to be tested normally along with other `./x test std` tests. Moving `rename_directory` is simple enough but `create_dir_all_bare` needed to be an std integration test.
Additionally, some tests that I couldn't move atm have instead been placed in an `std` subdirectory. These tests include ones that do fun things with processes or that intentionally abort the test process.
r? libs
