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Although `stack_overflow::init` runs very early in the process, even
before `main`, there may already be signal handlers installed for things
like the address sanitizer. In that case, just leave it alone, and don't
bother trying to allocate our own signal stacks either.
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it. (clippy::redundant_static_lifetimes)
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example:
let s: String = format!("hello").into();
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Split non macro portion of unused_doc_comment from macro part into two passes/lints
## Motivation
This change is motivated by the needs of the [spandoc library](https://github.com/yaahc/spandoc). The specific use case is that my macro is removing doc comments when an attribute is applied to a fn with doc comments, but I would like the lint to still appear when I forget to add the `#[spandoc]` attribute to a fn, so I don't want to have to silence the lint globally.
## Approach
This change splits the `unused _doc_comment` lint into two lints, `unused_macro_doc_comment` and `unused_doc_comment`. The non macro portion is moved into an `early_lint_pass` rather than a pre_expansion_pass. This allows proc macros to silence `unused_doc_comment` warnings by either adding an attribute to silence it or by removing the doc comment before the early_pass runs.
The `unused_macro_doc_comment` lint however will still be impossible for proc-macros to silence, but the only alternative that I can see is to remove this lint entirely, which I don't think is acceptable / is a decision I'm not comfortable making personally, so instead I opted to split the macro portion of the check into a separate lint so that it can be silenced globally with an attribute if necessary without needing to globally silence the `unused_doc_comment` lint as well, which is still desireable.
fixes https://github.com/rust-lang/rust/issues/67838
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macOS: avoid calling pthread_self() twice
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Fix std::fs::copy on WASI target
Previously `std::fs::copy` on wasm32-wasi would reuse code from the `sys_common` module and would successfully copy contents of the file just to fail right before closing it.
This was happening because `sys_common::copy` tries to copy permissions of the file, but permissions are not a thing in WASI (at least yet) and `set_permissions` is implemented as an unconditional runtime error.
This change instead adds a custom working implementation of `std::fs::copy` (like Rust already has on some other targets) that doesn't try to call `set_permissions` and is essentially a thin wrapper around `std::io::copy`.
Fixes #68560.
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Make the SGX arg cleanup implementation a NOP
fixes #64304
cc @jethrogb
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Previously `std::fs::copy` on wasm32-wasi would reuse code from the `sys_common` module and would successfully copy contents of the file just to fail right before closing it.
This was happening because `sys_common::copy` tries to copy permissions of the file, but permissions are not a thing in WASI (at least yet) and `set_permissions` is implemented as an unconditional runtime error.
This change instead adds a custom working implementation of `std::fs::copy` (like Rust already has on some other targets) that doesn't try to call `set_permissions` and is essentially a thin wrapper around `std::io::copy`.
Fixes #68560.
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Cleanup SGX entry code
cc @aandyl
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rflags during enclave (re-)entry
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It became unnecessary since a06baa56b95674fc626b3c3fd680d6a65357fe60 reformatted the file.
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Support feature process_set_argv0 for VxWorks
r? @alexcrichton
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The tidy check was removed in rust-lang/rust#53617
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Don't use f64 shims for f32 cmath functions on non 32-bit x86 MSVC
These shims are only needed on 32-bit x86. Additionally since https://reviews.llvm.org/rL268875 LLVM handles adding the shims itself for the intrinsics.
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These shims are only needed on 32-bit x86. Additionally since https://reviews.llvm.org/rL268875 LLVM handles adding the shims itself for the intrinsics.
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Updates for VxWorks
r? @alexcrichton
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Standard library support for riscv64gc-unknown-linux-gnu
Add std support for RISC-V 64-bit GNU/Linux and update libc for RISC-V support.
r? @alexcrichton
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Remove unused `#[link_name = "m"]` attributes
These were perhaps supposed to be `#[link(name = "m")]` but linking libm should be handled by the libc crate anyway.
They should have triggered a compile error: #47725
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These were perhaps supposed to be `#[link(name = "m")]` but linking libm should be handled by the libc crate anyway.
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tidy: change msdn links to newer locations
see accouncement at https://docs.microsoft.com/welcome-to-docs
The script that I used: https://gist.github.com/lzutao/1449c9210ad91899841d62e0058d2caa
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see accouncement at https://docs.microsoft.com/welcome-to-docs
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`description` has been documented as soft-deprecated since 1.27.0 (17
months ago). There is no longer any reason to call it or implement it.
This commit:
- adds #[rustc_deprecated(since = "1.41.0")] to Error::description;
- moves description (and cause, which is also deprecated) below the
source and backtrace methods in the Error trait;
- reduces documentation of description and cause to take up much less
vertical real estate in rustdocs, while preserving the example that
shows how to render errors without needing to call description;
- removes the description function of all *currently unstable* Error
impls in the standard library;
- marks #[allow(deprecated)] the description function of all *stable*
Error impls in the standard library;
- replaces miscellaneous uses of description in example code and the
compiler.
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Remove `SOCK_CLOEXEC` dummy variable on platforms that don't use it.
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Fix up Command Debug output when arg0 is specified.
PR https://github.com/rust-lang/rust/pull/66512 added the ability to set argv[0] on
Command. As a side effect, it changed the Debug output to print both the program and
argv[0], which in practice results in stuttery output (`"echo" "echo" "foo"`).
This PR reverts the behaviour to the the old one, so that the command is only printed
once - unless arg0 has been set. In that case it emits `"[command]" "arg0" "arg1" ...`.
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