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SGX target: handle empty user buffers correctly
Also, expose correct items in `os::fortanix_sgx::usercalls::alloc`
* [read_alloc documentation](https://edp.fortanix.com/docs/api/fortanix_sgx_abi/struct.Usercalls.html#method.read_alloc)
* [Clarified ByteBuffer documentation](https://github.com/fortanix/rust-sgx/pull/94/files#diff-ca843ad9e25cacd63a80579c0f7efa56)
r? @joshtriplett
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Fixes https://github.com/fortanix/rust-sgx/issues/88
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Add `io` and `arch` modules to `std::os::fortanix_sgx`
This PR adds two more (unstable) modules to `std::os::fortanix_sgx` for the `x86_64-fortanix-unknown-sgx` target.
### io
`io` allows conversion between raw file descriptors and Rust types, similar to `std::os::unix::io`.
### arch
`arch` exposes the `ENCLU[EREPORT]` and `ENCLU[EGETKEY]` instructions. The current functions are very likely not going to be the final form of these functions (see also https://github.com/fortanix/rust-sgx/issues/15), but this should be sufficient to enable experimentation in libraries. I tried using the actual types (from the [`sgx-isa` crate](https://crates.io/crates/sgx-isa)) instead of byte arrays, but that would make `std` dependent on the `bitflags` crate which I didn't want to do at this time.
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Reference: https://www.freebsd.org/cgi/man.cgi?query=arch&apropos=0&sektion=7
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set cfg(rustdoc) when rustdoc is running on a crate
When using `#[doc(cfg)]` to document platform-specific items, it's a little cumbersome to get all the platforms' items to appear all at once. For example, the standard library adds `--cfg dox` to rustdoc's command line whenever it builds docs, and the documentation for `#![feature(doc_cfg)]` suggests using a Cargo feature to approximate the same thing. This is a little awkward, because you always need to remember to set `--features dox` whenever you build documentation.
This PR proposes making rustdoc set `#[cfg(rustdoc)]` whenever it runs on a crate, to provide an officially-sanctioned version of this that is set automatically. This way, there's a standardized way to declare that a certain version of an item is specifically when building docs.
To try to prevent the spread of this feature from happening too quickly, this PR also restricts the use of this flag to whenever `#![feature(doc_cfg)]` is active. I'm sure there are other uses for this, but right now i'm tying it to this feature. (If it makes more sense to give this its own feature, i can easily do that.)
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`bad_style` is being deprecated in favor of `nonstandard_style`:
- https://github.com/rust-lang/rust/issues/41646
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port libstd to it.
As a start, the port uses the simplest possible configuration (no jemalloc, abort on panic)
and makes use of existing Unix-specific code wherever possible.
It adds targets for x86_64 (current main HermitCore platform) and aarch64 (HermitCore platform
under development).
Together with the patches to "liblibc" and "llvm", this enables HermitCore applications to be
written in Rust.
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Add documentation links to the original type for various OS-specific
extension traits and normalize the language for introducing such traits.
Also, remove some outdated comments around the extension trait
definitions.
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Fixes https://github.com/rust-lang/rust/issues/49233.
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- make liblibc to point to libc with aarch64-unknown-openbsd
- make c_char (in std::os::raw) to point to right value
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This commit alters how we compile LLVM by default enabling the WebAssembly
backend. This then also adds the wasm32-unknown-unknown target to get compiled
on the `cross` builder and distributed through rustup. Tests are not yet enabled
for this target but that should hopefully be coming soon!
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This commit adds the needed modifications to compile the std crate
for the L4 Runtime environment (L4Re).
A target for the L4Re was introduced in commit:
c151220a84e40b65e45308cc0f3bbea4466d3acf
In many aspects implementations for linux also apply for the L4Re
microkernel.
Two uncommon characteristics had to be resolved:
* L4Re has no network funktionality
* L4Re has a maximum stacksize of 1Mb for threads
Co-authored-by: Sebastian Humenda <sebastian.humenda@tu-dresden.de>
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* Match definition of c_char in os/raw.rs with the libc definition
Due to historic reasons, os/raw.rs redefines types for c_char from
libc, but these didn't match. Now they do :).
* Enable signal reset on exec for L4Re
L4Re has full signal emulation and hence it needs to reset the
signal set of the child with sigemptyset. However, gid and uid
should *not* be set.
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Brings in a few fixes for wasm/asmjs
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The old type causes failures when building cargo 0.20.0 after
changeset 8304e06b5 in the libc repo.
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As of last year with version 'Sierra', the Mac operating system is now
called 'macOS'.
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The versions show up in rustdoc.
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Part of https://github.com/rust-lang/rust/issues/31869.
Also turn on the `missing_debug_implementations` lint at the crate
level.
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This patch adds support for the aarch64-unknown-fuchsia target. Also
updates src/liblibc submodule to include required libc change.
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Also trim os::fuchsia::raw architectures.
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Adds support for the x86_64-unknown-fuchsia target, which covers the
Fuchsia operating system.
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