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The guide is based on [existing rustdoc].
[existing rustdoc]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_errors/struct.Diagnostic.html#method.span_suggestion
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The Rust codebase is large, not to mention the submodules. It would be helpful for some to have a warning or note about storage required before they spend possible hours to build, only to get a message in some form that they are running out/already out of storage. I did a stage1 build incrementally and it produced a build directory of about 14 gigabytes.
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* fix links
* some debugging
* more debugging
* fix git checkout in ci
* try again
* already tests with a merge
* Typo
Co-authored-by: Tshepang Lekhonkhobe <tshepang@gmail.com>
Co-authored-by: Tshepang Lekhonkhobe <tshepang@gmail.com>
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Fixes #64731, #73531.
See also #64402#issuecomment-530852886
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Update CFGuard syntax
Update the naming and syntax of the control-flow-guard option, as discussed in #68793.
r? @Mark-Simulacrum
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Diagnose use of incompatible sanitizers
Emit an error when incompatible sanitizer are configured through command
line options. Previously the last one configured prevailed and others
were silently ignored.
Additionally use a set to represent configured sanitizers, making it
possible to enable multiple sanitizers at once. At least in principle,
since currently all of them are considered to be incompatible with
others.
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asm: Allow multiple template string arguments; interpret them as newline-separated
Allow the `asm!` macro to accept a series of template arguments, and interpret them as if they were concatenated with a '\n' between them. This allows writing an `asm!` where each line of assembly appears in a separate template string argument.
This syntax makes it possible for rustfmt to reliably format and indent each line of assembly, without risking changes to the inside of a template string. It also avoids the complexity of having the user carefully format and indent a multi-line string (including where to put the surrounding quotes), and avoids the extra indentation and lines of a call to `concat!`.
For example, rewriting the second example from the [blog post on the new inline assembly syntax](https://blog.rust-lang.org/inside-rust/2020/06/08/new-inline-asm.html) using multiple template strings:
```rust
fn main() {
let mut bits = [0u8; 64];
for value in 0..=1024u64 {
let popcnt;
unsafe {
asm!(
" popcnt {popcnt}, {v}",
"2:",
" blsi rax, {v}",
" jz 1f",
" xor {v}, rax",
" tzcnt rax, rax",
" stosb",
" jmp 2b",
"1:",
v = inout(reg) value => _,
popcnt = out(reg) popcnt,
out("rax") _, // scratch
inout("rdi") bits.as_mut_ptr() => _,
);
}
println!("bits of {}: {:?}", value, &bits[0..popcnt]);
}
}
```
Note that all the template strings must appear before all other arguments; you cannot, for instance, provide a series of template strings intermixed with the corresponding operands.
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Add asm!() support for hexagon
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Co-authored-by: LeSeulArtichaut <leseulartichaut@gmail.com>
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Co-authored-by: LeSeulArtichaut <leseulartichaut@gmail.com>
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Co-authored-by: Camelid <37223377+camelid@users.noreply.github.com>
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Co-authored-by: Camelid <37223377+camelid@users.noreply.github.com>
Co-authored-by: Joshua Nelson <joshua@yottadb.com>
Co-authored-by: Phil Hansch <dev@phansch.net>
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Co-authored-by: Camelid <37223377+camelid@users.noreply.github.com>
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Co-authored-by: Camelid <37223377+camelid@users.noreply.github.com>
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This command shouldn't be used very often, and it has its own whole
section below anyway.
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- `RUSTDOC_LOG`
- `// aux-build:filename.rs`
- `// build-aux-docs`
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GPRs only
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Update all examples to use the new formatting, and update explanations
to document it.
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Emit an error when incompatible sanitizer are configured through command
line options. Previously the last one configured prevailed and others
were silently ignored.
Additionally use a set to represent configured sanitizers, making it
possible to enable multiple sanitizers at once. At least in principle,
since currently all of them are considered to be incompatible with
others.
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Suggest including unused asm arguments in a comment to avoid error
We require all arguments to an `asm!` to be used in the template string, just like format strings. However in some cases (e.g. `black_box`) it may be desirable to have `asm!` arguments that are not used in the template string.
Currently this is a hard error rather than a lint since `#[allow]` does not work on macros (#63221), so this PR suggests using the unused arguments in an asm comment as a workaround.
r? @petrochenkov
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r=ollie27
doc/rustdoc: Fix incorrect external_doc feature flag
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* Fix CI rebase
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