Commit Graph

195979 Commits

Author SHA1 Message Date
bors
93ffde6f04 Auto merge of #98208 - ivanloz:master, r=nagisa
Add support for LLVM ShadowCallStack.

LLVMs ShadowCallStack provides backward edge control flow integrity protection by using a separate shadow stack to store and retrieve a function's return address.

LLVM currently only supports this for AArch64 targets. The x18 register is used to hold the pointer to the shadow stack, and therefore this only works on ABIs which reserve x18. Further details are available in the [LLVM ShadowCallStack](https://clang.llvm.org/docs/ShadowCallStack.html) docs.

# Usage
`-Zsanitizer=shadow-call-stack`

# Comments/Caveats
* Currently only enabled for the aarch64-linux-android target
* Requires the platform to define a runtime to initialize the shadow stack, see the [LLVM docs](https://clang.llvm.org/docs/ShadowCallStack.html) for more detail.
2022-07-23 20:01:07 +00:00
Ramon de C Valle
f792f26a38 Update documentation for LLVM CFI support
This commit updates the documentation for the LLVM Control Flow
Integrity (CFI) support in the Rust compiler (see #95548 and #89653).
2022-07-23 10:51:37 -07:00
Ramon de C Valle
5ad7a646a5 Add fine-grained LLVM CFI support to the Rust compiler
This commit improves the LLVM Control Flow Integrity (CFI) support in
the Rust compiler by providing forward-edge control flow protection for
Rust-compiled code only by aggregating function pointers in groups
identified by their return and parameter types.

Forward-edge control flow protection for C or C++ and Rust -compiled
code "mixed binaries" (i.e., for when C or C++ and Rust -compiled code
share the same virtual address space) will be provided in later work as
part of this project by identifying C char and integer type uses at the
time types are encoded (see Type metadata in the design document in the
tracking issue #89653).

LLVM CFI can be enabled with -Zsanitizer=cfi and requires LTO (i.e.,
-Clto).
2022-07-23 10:51:34 -07:00
bors
2be00623e4 Auto merge of #12851 - DorianListens:dscheidt/if-completion-match-guard, r=Veykril
fix: Don't add braces to 'if' completion in match guard position

fixes #12823

Is this what you were thinking of here, `@Veykril` ? I haven't done any work on completions before, so I could definitely be misunderstanding the issue.
2022-07-23 17:42:59 +00:00
Dorian Scheidt
13c83f90ac fix: Don't add braces to 'if' completion in match guard position
When the cursor is in a match arm, but before the fat arrow (=>) token, don't
add braces when autocompleting "if".

fixes #12823
2022-07-23 12:25:02 -05:00
bors
0e7c843da4 Auto merge of #98471 - wesleywiser:update_measureme, r=Mark-Simulacrum
Update measureme to the latest version
2022-07-23 16:14:40 +00:00
bors
f3a46f689c Auto merge of #12854 - RalfJung:generate_new, r=Veykril
fix generate_new doc

Looks like this got copied from `generate_impl` without adjusting the description.
2022-07-23 15:18:48 +00:00
Ralf Jung
ff041bfa68 fix generate_new doc 2022-07-23 11:09:01 -04:00
dAxpeDDa
a5de4eeafc
Add sign-ext target feature to the WASM target 2022-07-23 16:58:10 +02:00
Ralf Jung
4e89a7c293 now we can make scalar_to_ptr a method on Scalar 2022-07-23 10:36:57 -04:00
Deadbeef
05bb26fdb6 Add tests 2022-07-23 14:25:56 +00:00
Deadbeef
08cb878430 Remap elaborated obligation constness 2022-07-23 14:25:55 +00:00
Deadbeef
9b75f2d498 Allow ~const on super traits 2022-07-23 14:25:55 +00:00
Ralf Jung
665a7e8f56 remove some provenance-related machine hooks that Miri no longer needs 2022-07-23 10:15:37 -04:00
bors
e55c53c57e Auto merge of #97925 - the8472:cgroupv1, r=joshtriplett
Add cgroupv1 support to available_parallelism

Fixes #97549

My dev machine uses cgroup v2 so I was only able to test that code path. So the v1 code path is written only based on documentation. I could use some help testing that it works on a machine with cgroups v1:

```
$ x.py build --stage 1

# quota.rs
fn main() {
    println!("{:?}", std:🧵:available_parallelism());
}

# assuming stage1 is linked in rustup
$ rust +stage1 quota.rs

# spawn a new cgroup scope for the current user
$ sudo systemd-run -p CPUQuota="300%" --uid=$(id -u) -tdS

# should print Ok(3)
$ ./quota
```

If it doesn't work as expected an strace, the contents of `/proc/self/cgroups` and the structure of `/sys/fs/cgroups` would help.
2022-07-23 13:33:56 +00:00
Guillaume Gomez
7a9f3078e5 Remove Clean trait implementation for hir::Ty and middle::Ty 2022-07-23 14:56:58 +02:00
bors
2e43d068ce Auto merge of #99636 - matthiaskrgr:rollup-yg0xxkx, r=matthiaskrgr
Rollup of 4 pull requests

Successful merges:

 - #99580 (Don't suggest unnameable generic arguments)
 - #99617 (Update mdbook)
 - #99631 (Use span_bug in case of unexpected rib kind)
 - #99632 (Fix typo/grammar in locator.rs doc comment)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2022-07-23 10:40:41 +00:00
Matthias Krüger
7c5df1f425
Rollup merge of #99632 - danbev:locator.rs-typo, r=Dylan-DPC
Fix typo/grammar in locator.rs doc comment
2022-07-23 12:08:14 +02:00
Matthias Krüger
f510d98ad3
Rollup merge of #99631 - jmqd:master, r=oli-obk
Use span_bug in case of unexpected rib kind

Extremely minor QOL change to improve the ICE compiler output in case
this default match case is encountered (an unexpected rib kind).

I have limited experience in this area of the compiler; please let me know
if a span more precise than `param.ident.span` is more applicable.
2022-07-23 12:08:13 +02:00
Matthias Krüger
539b8dd2e3
Rollup merge of #99617 - ehuss:update-mdbook, r=Dylan-DPC
Update mdbook

This updates mdbook from 0.4.20 to 0.4.21
Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0421

This contains a single fix that prevents mdbook from compiling on nightly (due to #99413). This will be necessary to keep everything working after the next master bootstrap switch.
2022-07-23 12:08:12 +02:00
Matthias Krüger
b6d6f100a1
Rollup merge of #99580 - fmease:fix-issue-99565, r=estebank
Don't suggest unnameable generic arguments

Fixes #99565.

`@rustbot` label T-compiler A-diagnostics
r? `@rust-lang/wg-diagnostics`
2022-07-23 12:08:11 +02:00
bors
47ba935965 Auto merge of #99320 - NiklasJonsson:84447/rustc_expand, r=compiler-errors
rustc_expand: Switch FxHashMap to FxIndexMap where iteration is used

Relates #84447
2022-07-23 07:59:54 +00:00
Daniel Bevenius
db977ca37e Fix typo/grammar in locator.rs doc comment 2022-07-23 07:31:20 +02:00
bors
7d0a55bcdc Auto merge of #99599 - RalfJung:miri-stage-0, r=RalfJung
miri: make --stage 0 testing work

This needs https://github.com/rust-lang/miri/pull/2415 or it'll break Miri entirely.

also fixes https://github.com/rust-lang/rust/issues/99589
2022-07-23 05:28:35 +00:00
Jordan McQueen
e0c9be539a Use span_bug in case of unexpected rib kind
Extremely minor QOL change to improve the ICE output in case this
default match case is encountered (an unexpected rib kind).
2022-07-23 13:26:45 +09:00
bors
ed793d86da Auto merge of #93397 - joshtriplett:sort-floats, r=Amanieu
Add `[f32]::sort_floats` and `[f64]::sort_floats`

It's inconvenient to sort a slice or Vec of floats, compared to sorting integers. To simplify numeric code, add a convenience method to `[f32]` and `[f64]` to sort them using `sort_unstable_by` with `total_cmp`.
2022-07-23 02:47:54 +00:00
bors
8aedb9c68d Auto merge of #99623 - RalfJung:rollup-0h066kc, r=RalfJung
Rollup of 3 pull requests

Successful merges:

 - #99588 (Update books)
 - #99602 (cargotest: do not run quickcheck tests in xsv)
 - #99607 (interpret: fix vtable check debug assertion)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
2022-07-23 00:01:19 +00:00
bors
0b131bc78e Auto merge of #12849 - Veykril:no-parse, r=Veykril
internal: Don't parse files unnecessarily in scope_for_offset
2022-07-22 23:00:35 +00:00
bors
fbb1337eb3 Auto merge of #12850 - Veykril:display-fix, r=Veykril
fix: Fix error tooltip message for VSCode status bar item
2022-07-22 22:52:53 +00:00
Lukas Wirth
e223d20d97 fix: Fix error tooltip message for VSCode status bar item 2022-07-23 00:52:12 +02:00
Lukas Wirth
cb6703fe06 internal: Don't parse files unnecessarily in scope_for_offset 2022-07-23 00:50:59 +02:00
Ben Kimock
90dc0b02ae Lock stdout once when listing tests 2022-07-22 18:39:26 -04:00
bors
8272d2a18d Auto merge of #12847 - Veykril:vscode-downgrade, r=Veykril
fix: Fix restart server duplicating language clients

Reverts 03a62c180e
vscode-languageclient@8.0.0-next.15 and beyond changed the behaviour of language clients to be automatically started if a request comes in while they are not running. Currently when we restart the server via the restart command we recreate the language client, which causes VSCode to restart the stopped server, effectively duplicating our language clients...

Reverting the commit is simpler right now, the proper fix would be to only create a language client once and then use the `restart` functionality on it instead.

Fixes https://github.com/rust-lang/rust-analyzer/issues/12836
2022-07-22 22:18:05 +00:00
Lukas Wirth
f1b5e38563 Revert 03a62c180e 2022-07-23 00:14:34 +02:00
Ralf Jung
25de227b43
Rollup merge of #99607 - RalfJung:vtable-check, r=eddyb
interpret: fix vtable check debug assertion

Fixes https://github.com/rust-lang/rust/issues/99605
Thanks to `@eddyb` for suggesting the fix!
2022-07-22 17:26:10 -04:00
Ralf Jung
0549516230
Rollup merge of #99602 - RalfJung:xsv, r=Mark-Simulacrum
cargotest: do not run quickcheck tests in xsv

Fixes https://github.com/rust-lang/rust/issues/73514
I know https://github.com/rust-lang/rust/issues/70659 discusses a larger overhaul of cargotest, but that seems to have stalled and I'd like to fix the immediate issue of PRs failing due to random test failures in xsv.

This still runs the vast majority of tests by numbers:
```
test result: ok. 394 passed; 0 failed; 0 ignored; 0 measured; 32 filtered out; finished in 1.84s
```
So the loss in test coverage is hopefully not too big.
2022-07-22 17:26:09 -04:00
Ralf Jung
e51a4762b5
Rollup merge of #99588 - ehuss:update-books, r=ehuss
Update books

## nomicon

1 commits in 70db9e4189f64d1d8e2451b1046111fb356b6dc2..8d1e4dccf71114ff56f328f671f2026d8e6b62a2
2022-06-27 20:47:21 +0900 to 2022-07-18 18:12:35 -0400
- Should be `align_of` instead of `size_of`

## reference

11 commits in 9fce337a55ee4a4629205f6094656195cecad231..a92be0fef439b3d8e0468d82cb24812d303520a0
2022-06-22 13:59:28 -0700 to 2022-07-21 19:01:23 -0700
- Add `IntoFuture::into_future` desugaring (rust-lang/reference#1233)
- Remove uses of the phrase "in Rust" (rust-lang/reference#1241)
- Revert "Add stable references of `macro_metavar_expr`" (rust-lang/reference#1242)
- tweaks
- further tweak addr_of exposition
- edits
- Apply suggestions from code review
- document raw-addr-of operators
- update union field type rules (rust-lang/reference#1238)
- clarify that references size_of_val can never exceed isize::MAX (rust-lang/reference#1186)
- Describe what `windows_subsystem` does (rust-lang/reference#1232)

## book

9 commits in cf2653a5ca553cbbb4a17f1a7db1947820f6a775..36383b4da21dbd0a0781473bc8ad7ef0ed1b6751
2022-07-05 12:07:58 -0400 to 2022-07-19 21:03:20 -0400
- Update ch16-02-message-passing.md
- Update snapshots with edits made to src that need to be checked
- Remove inconsistent newline. Fixes rust-lang/book#3240.
- add missing `b` in chapter 15.6
- Grammar: corrected 'as much' to 'as such'
- grammar: add missing 'of'
- Fix incorrect link for listing 13-06
- Correct method name
- Remove unused theme directories.

## rust-by-example

2 commits in 83724ca387a2a1cd3e8d848f62820020760e358b..3155db49b0d57cd82c65456ac210b69ecec5ccb1
2022-07-05 10:38:07 -0300 to 2022-07-05 20:35:53 -0300
- fix-type (rust-lang/rust-by-example#1565)
- add-examples-to-destructure-tuples (rust-lang/rust-by-example#1566)

## rustc-dev-guide

27 commits in eb83839e903a0a8f1406f7e941886273f189b26b..d5201cddace979b299ec1bf9fd8997338151aa9d
2022-07-03 15:17:39 +0900 to 2022-07-21 04:48:49 +0200
- Debuginfo tests now also support revisions.
- Link to rendered book directly
- Fix link to clippy sync docs
- remove stray markup
- renamed
- sync with hackmd version
- replace misleading name (rust-lang/rustc-dev-guide#1401)
- Remove a mention to Steve on r? example
- obey line length limit (part 3)
- obey line length limit (part 2)
- obey line length limit
- sync with hackmd
- add draft chapter
- add mdbook-mermaid
- use relative links
- fix some typos (rust-lang/rustc-dev-guide#1398)
- typo: monomorph docs
- Rename debugging_opts to unstable_opts, use link
- address review comment
- update date reference on MIR inliner
- remove outdated info on debugging
- small fixes to ty chapter (rust-lang/rustc-dev-guide#1390)
- Update the build instructions for the standard library
- overview.md: Link to existing Macro Expansion and Name Resolution docs (rust-lang/rustc-dev-guide#1388)
- Git-ignore `pulls.json` (rust-lang/rustc-dev-guide#1386)
- Revert "Add the config needed to get rust-analyzer working on src/bootstrap (rust-lang/rustc-dev-guide#1381)"
- Use `x.py check` instead of `cargo check` for build scripts (rust-lang/rustc-dev-guide#1384)
2022-07-22 17:26:08 -04:00
bors
848090dcd1 Auto merge of #98017 - RalfJung:dereferenceable, r=nikic
do not mark interior mutable shared refs as dereferenceable

My proposed solution to https://github.com/rust-lang/rust/issues/55005.
2022-07-22 21:20:35 +00:00
bors
d469e0de9a Auto merge of #12840 - Veykril:be-lazy, r=Veykril
internal: Use ItemTree for variant, field and module attribute collection in attrs_query

Less parsing = very good, should speed up lang item collection as that basically probes attributes of all enum variants which currently triggers parsing

Not fond of how this is searching for the correct index, ideally we'd map between HIR and item tree Id here but I am not sure how, storing the item tree ids in the HIR version doesn't work due to the usage of `Trace`...
2022-07-22 20:35:31 +00:00
the8472
2e33c812e8
[review] mention that runtime may scale with # of mountpoints
Co-authored-by: Josh Triplett <josh@joshtriplett.org>
2022-07-22 22:18:07 +02:00
Lukas Wirth
0081ef3834 Use ItemTree for modules in attrs_query 2022-07-22 22:17:13 +02:00
bjorn3
3207c9faec Report an error on incompatible symbol definitions 2022-07-22 19:03:06 +00:00
Eric Huss
31dd1f6859 Update mdbook 2022-07-22 11:59:20 -07:00
bjorn3
a6b602dc32 Fix inline asm codegen for empty template 2022-07-22 18:59:16 +00:00
Michael Goulet
22b2aae737 Do not resolve associated const when there is no provided value 2022-07-22 18:58:07 +00:00
Ralf Jung
35c6dec921 adjust UnsafeCell documentation 2022-07-22 14:25:41 -04:00
Ralf Jung
5b7197af7f do not mark interior mutable shared refs as dereferenceable 2022-07-22 14:25:41 -04:00
Ralf Jung
307e80c1a6 rename PointerKind::Shared → SharedMutable to indicate this is NOT the usual shared reference 2022-07-22 14:22:05 -04:00
bjorn3
cd96988436 Don't crash when local variables are too big to store on the stack 2022-07-22 18:03:24 +00:00
Daniel Paoliello
1f33785ed4 Enable raw-dylib for binaries 2022-07-22 09:55:14 -07:00