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bors 3297be7496 Auto merge of #127897 - nyurik:add-qnx-70-target, r=saethlin 
add `aarch64_unknown_nto_qnx700` target - QNX 7.0 support for aarch64le

This backports the QNX 7.1 aarch64 implementation to 7.0.

* [x] required `-lregex` disabled, see https://github.com/rust-lang/libc/pull/3775 (released in libc 0.2.156)
* [x] uses `libgcc.a` instead of `libgcc_s.so` (7.0 used ancient GCC 5.4 which didn't have gcc_s)
* [x] a fix in `backtrace` crate to support stack traces https://github.com/rust-lang/backtrace-rs/pull/648

This PR bumps libc dependency to 0.2.158

CC: to the folks who did the [initial implementation](https://doc.rust-lang.org/rustc/platform-support/nto-qnx.html): `@flba-eb,` `@gh-tr,` `@jonathanpallant,` `@japaric`

# Compile target

```bash
# Configure qcc build environment
source _path_/_to_/qnx7.0/qnxsdp-env.sh

# Tell rust to use qcc when building QNX 7.0 targets
export build_env='
    CC_aarch64-unknown-nto-qnx700=qcc
    CFLAGS_aarch64-unknown-nto-qnx700=-Vgcc_ntoaarch64le_cxx
    CXX_aarch64-unknown-nto-qnx700=qcc
    AR_aarch64_unknown_nto_qnx700=ntoaarch64-ar'

# Build rust compiler, libs, and the remote test server
env $build_env ./x.py build \
  --target x86_64-unknown-linux-gnu,aarch64-unknown-nto-qnx700 \
  rustc library/core library/alloc library/std src/tools/remote-test-server

rustup toolchain link stage1 build/host/stage1
```

# Compile "hello world"

```bash
source _path_/_to_/qnx7.0/qnxsdp-env.sh

cargo new hello_world
cd hello_world
cargo +stage1 build --release --target aarch64-unknown-nto-qnx700
```

# Configure a remote for testing

Do this from a new shell - we will need to run more commands in the previous one.  I ran into these two issues, and found some workarounds.

* Temporary dir might not work properly
* Default `remote-test-server` has issues binding to an address

```
# ./remote-test-server
starting test server
thread 'main' panicked at src/tools/remote-test-server/src/main.rs:175:29:
called `Result::unwrap()` on an `Err` value: Os { code: 249, kind: AddrNotAvailable, message: "Can't assign requested address" }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
```

Specifying `--bind` param actually fixes that, and so does setting `TMPDIR` properly.

```bash
# Copy remote-test-server to remote device. You may need to use sftp instead.
# ATTENTION: Note that the path is different from the one in the remote testing documentation for some reason
scp ./build/x86_64-unknown-linux-gnu/stage1-tools-bin/remote-test-server  qnxdevice:/path/

# Run ssh with port forwarding - so that rust tester can connect to the local port instead
ssh -L 12345:127.0.0.1:12345 qnxdevice

# on the device, run
rm -rf tmp && mkdir -p tmp && TMPDIR=$PWD/tmp ./remote-test-server --bind 0.0.0.0:12345
```

# Run test suit

Assume all previous environment variables are still set, or re-init them

```bash
export TEST_DEVICE_ADDR="localhost:12345"

# tidy needs to be skipped due to using un-published libc dependency
export exclude_tests='
    --exclude src/bootstrap
    --exclude src/tools/error_index_generator
    --exclude src/tools/linkchecker
    --exclude src/tools/tidy
    --exclude tests/ui-fulldeps
    --exclude rustc
    --exclude rustdoc
    --exclude tests/run-make-fulldeps'

env $build_env ./x.py test  $exclude_tests --stage 1 --target aarch64-unknown-nto-qnx700
```

try-job: dist-x86_64-msvc
2024-09-01 08:00:25 +00:00
.cargo fix: Fix generated markers not being patchable in package.json 2024-06-08 12:54:43 +02:00
.github Only keep lib/ in publish-libs 2024-08-12 13:45:38 +03:00
.vscode feat: use vscode log format for client logs 2024-07-27 21:43:35 -07:00
assets Automatically change text color in logo based on dark mode 2022-03-06 23:06:53 +11:00
bench_data Spelling 2023-04-19 09:45:55 -04:00
crates Rollup merge of #129207 - GrigorenkoPV:elided-is-named, r=cjgillot 2024-09-01 03:58:03 +02:00
docs Auto merge of #17857 - ChayimFriedman2:rust-project-cfg-group, r=Veykril 2024-08-23 10:01:35 +00:00
editors/code Old configs are back 2024-08-20 12:35:56 +02:00
lib Use crossbeam-channel from the workspace 2024-08-09 23:48:03 +02:00
xtask internal: Properly check the edition for edition dependent syntax kinds 2024-08-15 15:57:47 +02:00
.editorconfig add max_line_length to .editorconfig 2024-01-20 17:14:00 +03:00
.git-blame-ignore-revs internal: Don't allocate autoderef steps when not needed 2024-08-25 13:12:07 +02:00
.gitattributes Fix .gitattributes for test_data 2022-07-24 14:05:35 +02:00
.gitignore internal: add "Shuffle Crate Graph" command 2021-12-07 16:37:19 +01:00
.typos.toml Implement rough symbol interning infra 2024-07-12 16:01:47 +02:00
Cargo.lock Auto merge of #17907 - ChayimFriedman2:no-once_cell, r=Veykril 2024-08-16 07:05:59 +00:00
Cargo.toml Improve proc-macro panic message and workspace loading failure diagnostic 2024-08-22 18:46:23 +02:00
clippy.toml Lint debug prints and disallowed types with clippy 2024-02-01 17:57:27 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2024-04-18 10:24:40 +02:00
LICENSE-APACHE Drop Apache license appendices 2024-08-27 14:52:34 +03:00
LICENSE-MIT Licenses 2018-01-10 22:47:04 +03:00
PRIVACY.md Update privacy note 2021-12-23 14:04:15 +02:00
README.md Add CONTRIBUTING.md 2024-04-18 10:24:40 +02:00
rust-bors.toml Prepare for rust-bors 2023-10-05 15:26:09 +03:00
rust-version Preparing for merge from rust-lang/rust 2024-08-29 10:02:05 +03:00
rustfmt.toml Shuffle hir-expand things around 2024-01-26 19:28:39 +01:00
triagebot.toml Update triagebot.toml 2024-06-27 10:32:13 +02:00

README.md

rust-analyzer logo

rust-analyzer is a modular compiler frontend for the Rust language. It is a part of a larger rls-2.0 effort to create excellent IDE support for Rust.

Quick Start

https://rust-analyzer.github.io/manual.html#installation

Documentation

If you want to contribute to rust-analyzer check out the CONTRIBUTING.md or if you are just curious about how things work under the hood, check the ./docs/dev folder.

If you want to use rust-analyzer's language server with your editor of choice, check the manual folder. It also contains some tips & tricks to help you be more productive when using rust-analyzer.

Security and Privacy

See the corresponding sections of the manual.

Communication

For usage and troubleshooting requests, please use "IDEs and Editors" category of the Rust forum:

https://users.rust-lang.org/c/ide/14

For questions about development and implementation, join rust-analyzer working group on Zulip:

https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer

Quick Links

License

rust-analyzer is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT for details.