Add a proc-macro to derive HashStable in librustc dependencies
A second proc-macro is added to derive HashStable for crates librustc depends on.
This proc-macro HashStable_Generic (to bikeshed) allows to decouple code and some librustc's boilerplate.
Not everything is migrated, because `Span` and `TokenKind` require to be placed inside librustc.
Types using them stay there too.
Split out of #66279
r? @Zoxc
Add target thumbv7neon-unknown-linux-musleabihf
This is a copy of thumbv7neon-unknown-linux-gnueabihf with musl changes
merged from armv7-unknown-linux-musleabihf. This appears to have been
missed when adding the other ARMv7-A thumb targets.
This addresses #65024, as it allows RISC-V target specification
files to set "llvm-abiname": "lp64d". In general, it is useful
for the programmer to be able to set this codegen parameter,
which other languages usually expose under a compiler argument
like "-mabi=<XYZ>".
Re-enable Emscripten's exception handling support
Passes LLVM codegen and Emscripten link-time flags for exception
handling if and only if the panic strategy is `unwind`. Sets the
default panic strategy for Emscripten targets to `unwind`. Re-enables
tests that depend on unwinding support for Emscripten, including
`should_panic` tests.
r? @alexcrichton
Add new EFIAPI ABI
Fixes#54527
Adds a new ABI, "efiapi", which reflects the calling convention as specified by [the current spec UEFI spec](https://uefi.org/sites/default/files/resources/UEFI%20Spec%202_7_A%20Sept%206.pdf#G6.999903). When compiling for x86_64, we should select the `win64` ABI, while on all other architectures (Itanium, x86, ARM and ARM64 and RISC-V), we should select the `C` ABI.
Currently, this is done by just turning it into the C ABI everywhere except on x86_64, where it's turned into the win64 ABI. Should we prevent this ABI from being used on unsupported architectures, and if so, how would this be done?
Passes LLVM codegen and Emscripten link-time flags for exception
handling if and only if the panic strategy is `unwind`. Sets the
default panic strategy for Emscripten targets to `unwind`. Re-enables
tests that depend on unwinding support for Emscripten, including
`should_panic` tests.
Adds a new ABI for the EFIAPI calls. This ABI should reflect the latest
version of the UEFI specification at the time of commit (UEFI spec 2.8,
URL below). The specification says that for x86_64, we should follow the
win64 ABI, while on all other supported platforms (ia32, itanium, arm,
arm64 and risc-v), we should follow the C ABI.
To simplify the implementation, we will simply follow the C ABI on all
platforms except x86_64, even those technically unsupported by the UEFI
specification.
https://uefi.org/sites/default/files/resources/UEFI_Spec_2_8_final.pdf
Add a target setting to allow targets to specify whether the generated
`main` function should be passed `argc` and `argv` arguments. Set it
to false on wasm32-wasi, since WASI's `args::args()` calls into the
WASI APIs itself. This will allow the WASI toolchain to avoid linking
and running command-line argument initialization code when the arguments
aren't actually needed.
- Compatible with Emscripten 1.38.46-upstream or later upstream.
- Refactors the Emscripten target spec to share code with other wasm
targets.
- Replaces the old incorrect wasm32 C call ABI with the correct one,
preserving the old one as wasm32_bindgen_compat for wasm-bindgen
compatibility.
- Updates the varargs ABI used by Emscripten and deletes the old one.
- Removes the obsolete wasm32-experimental-emscripten target.
- Uses EMCC_CFLAGS on CI to avoid the timeout problems with #63649.
- the old interface between HermitCore and the Rust Standard Library
based on a small C library (newlib)
- remove this interface and call directly the unikernel
- remove the dependency to the HermitCore linker
- use rust-lld as linker
- Refactors the Emscripten target spec to share code with other wasm
targets.
- Replaces the incorrect wasm32 C call ABI with the old asmjs
version, which is correct for both wasm32 and JS.
- Updates the varargs ABI used by Emscripten and deletes the old one.
- Removes the obsolete wasm32-experimental-emscripten target.
- Temporarily makes Emscripten targets use panic=abort by default
because supporting unwinding will require an LLVM patch.
Add i686-unknown-uefi target
This adds a new rustc target-configuration called 'i686-unknown_uefi'.
This is similar to existing x86_64-unknown_uefi target.
The i686-unknown-uefi target can be used to build Intel Architecture
32bit UEFI application. The ABI defined in UEFI environment (aka IA32)
is similar to cdecl.
We choose i686-unknown-uefi-gnu instead of i686-unknown-uefi to avoid
the intrinsics generated by LLVM. The detail of root-cause and solution
analysis is added as comment in the code.
For x86_64-unknown-uefi, we cannot use -gnu, because the ABI between
MSVC and GNU is totally different, and UEFI chooses ABI similar to MSVC.
For i686-unknown-uefi, the UEFI chooses cdecl ABI, which is same as
MSVC and GNU. According to LLVM code, the only differences between MSVC
and GNU are fmodf(f32), longjmp() and TLS, which have no impact to UEFI.
As such, using i686-unknown-uefi-gnu is the simplest way to pass the build.
Adding the undefined symbols, such as _aulldiv() to rust compiler-builtins
is out of scope. But it may be considered later.
The scope of this patch is limited to support target-configuration.
No standard library support is added in this patch. Such work can be
done in future enhancement.
Cc: Josh Triplett <josh.triplett@intel.com>
Reviewed-by: Josh Triplett <josh.triplett@intel.com>
This adds a new rustc target-configuration called 'i686-unknown_uefi'.
This is similar to existing x86_64-unknown_uefi target.
The i686-unknown-uefi target can be used to build Intel Architecture
32bit UEFI application. The ABI defined in UEFI environment (aka IA32)
is similar to cdecl.
We choose i686-unknown-uefi-gnu instead of i686-unknown-uefi to avoid
the intrinsics generated by LLVM. The detail of root-cause and solution
analysis is added as comment in the code.
For x86_64-unknown-uefi, we cannot use -gnu, because the ABI between
MSVC and GNU is totally different, and UEFI chooses ABI similar to MSVC.
For i686-unknown-uefi, the UEFI chooses cdecl ABI, which is same as
MSVC and GNU. According to LLVM code, the only differences between MSVC
and GNU are fmodf(f32), longjmp() and TLS, which have no impact to UEFI.
As such, using i686-unknown-uefi-gnu is the simplest way to pass the build.
Adding the undefined symbols, such as _aulldiv() to rust compiler-builtins
is out of scope. But it may be considered later.
The scope of this patch is limited to support target-configuration.
No standard library support is added in this patch. Such work can be
done in future enhancement.
Cc: Josh Triplett <josh.triplett@intel.com>
Reviewed-by: Josh Triplett <josh.triplett@intel.com>
The wasm32-wasi target respects configuration around `crt-static` in
general, but is defaulted to being static. This interacted badly with
code which validated the `cdylib` crate type for `wasm32-wasi`,
erroneously saying that the `cdylib` crate type wasn't supported on
`wasm32-wasi` by default. This commit sets the appropriate flag in
`wasm32_wasi`'s target specification to indicate that the `cdylib` crate
type is supported regardless of `crt-static`
Closes#64187
Some update for vxWorks
1. support crt-static
2. change armv7_wrs_vxworks to armv7_wrs_vxworks_eabihf.
3. change vx-cxx to wr-c++, vx-ar to wr-ar and vx-run to wr-run.
4. code cleanup
r? @alexcrichton
add sparc64-unknown-openbsd target
on OpenBSD, some architectures relies on libc++ (from LLVM) and some
others on libestdc++ (particular version of libstdc++ from GCC).
sparc64-unknown-openbsd needs libestdc++ and libgcc (as x86_64 some
years ago). Reintroduce the support of them for openbsd, only for
sparc64 arch. Some others architectures on OpenBSD could use them too.
on OpenBSD, some architectures relies on libc++ (from LLVM) and some
others on libestdc++ (particular version of libstdc++ from GCC).
sparc64-unknown-openbsd needs libestdc++ and libgcc (as x86_64 some
years ago). Reintroduce the support of them for openbsd, only for
sparc64 arch. Some others architectures on OpenBSD could use them too.
Add Catalyst (iOS apps running on macOS) target
This is a first attempt of adding support for the new [Apple Catalyst](https://developer.apple.com/ipad-apps-for-mac/) target (i.e. running iOS apps on macOS). Currently, `rustc` supports the iOS and iOS simulator targets for iOS:
- iOS: ARM cpu, iOS SDK, linked agains the iOS ABI
- Simulator: X86_64 cpu, iOS SDK, linked against the iOS ABI
Apple Catalyst will add an additional target:
- Macabi: X86_64 CPU, iOS SDK, linked again the macOS ABI.
Note, it the actual SDK is the also the macOS 10.15 SDK, but the symbols are the iOS SDK symbols as they were added to macOS with 10.15.
I've collected additional information via links in the open question sections below. This is way out of my comfort zone so please excuse whatever errors I may have made.
# Open Questions:
## Clang Version
It seems to me that `macabi` has not been merged into `clang` yet, I don't know whether that is a requirement rustc to compile, or if it is sufficient if the Clang that is used on a developers system is the correct one supporting macabi (that comes with current Xcode)
## Hardcoded iOS version
`swift-llvm` actually used [x86_64-apple-ios13.0-macabi](3f1fd4f46a) as the target triple which hard-codes the current iOS version. A post on stackoverflow [points out that `MIN_IOS_VERSION` and `MIN_OSX_VERSION` should be used when compiling C code for clang (`-target x86_64-apple-ios${MIN_IOS_VERSION}-macabi`)](https://stackoverflow.com/questions/56487645/how-to-compile-a-3rd-party-library-to-be-used-with-uikit-for-mac-catalyst). However, I wasn't entirely sure how to do that in this PR. Pointers welcome.
## Data Layout
I'm probably using the wrong data-layout. I don't know whether it should be the macOS version or the iOS version. This is probably easier to answer for somebody who understands these things much better than me. I just copied the iOS Simulator X86_64 version as it seems to be (based on what I understand) that Catalyst is just the simulator target build against a different SDK.
# Current State
1. I got it to compile
2. I could successfully compile a `macabi` `libcore` via `cargo build --target x86_64-apple-ios-macabi`
I'm not sure what needs to be done next. Supposedly I need to compile everything into a toolchain somehow that I can then test via `rustup` to make sure that a binary compiled against the toolchain also works with Catalyst. [I read this article, but I'm still lost](https://www.reddit.com/r/rust/comments/5ag60z/how_do_i_bootstrap_rust_to_crosscompile_for_a_new/d9gicr2/) and would love pointers what to do next here.
# Additional Information
- [Commit adding Catalyst support to the Swift Clang Fork](https://github.com/CocoaPods/CocoaPods/issues/8877)
- [Compiling C to Catalyst Discussion](https://github.com/CocoaPods/CocoaPods/issues/8877)
- [CocoaPods Discussion on Adding Catalyst support](https://github.com/CocoaPods/CocoaPods/issues/8877)
Add builtin targets for mips64(el)-unknown-linux-muslabi64
This is prerequisite for rust-lang/libc#1449.
Tested locally to produce working static and dynamic binaries, ~~but CI config is untested for now~~ CI is to be added in a follow-up PR.
*edit: dynamic binaries also confirmed working!*
*edit 2: changed triples to include ABI, and removed stray `crt_static_default = false` declarations to be consistent with other musl targets*
Add UWP MSVC targets
Hi,
- The README URI change is the correct one for VS2019 community edition, which I suspect most people would use. Doesn't _need_ to be merged though.
- This 5e6619edd1 fixes the UWP build (msvc or not, doesn't matter). I suspect it broke with recent changes unnoticed because no CI.
- Store lib location is found through the VCToolsInstallDir env variable. The end of the path is currently for the VS2019 store lib locations only.
- I could not test the aarch64_uwp_windows_msvc target because the rust build script does not currently support arm64 msvc AFAIU.
This is a first attempt of adding support for the new Apple Catalyst ABI (i.e. running iOS apps on macOS). Currently, `rustc` supports the iOS and iOS simulator targets for iOS:
- iOS: ARM cpu, iOS SDK, linked agains the iOS ABI
- Simulator: X86_64 cpu, iOS SDK, linked against the iOS ABI
Apple Catalyst will add an additional target:
- Macabi: X86_64 CPU, iOS SDK, linked again the macOS ABI.
Note, it the actual SDK is the also the macOS 10.15 SDK, but the symbols are the iOS SDK symbols as they were added to macOS with 10.15.
This commits adds the files for this new target triple.
Hard-float (unlike mips32 musl targets but consistent with any other
musl target), MIPS64r2, n64 ABI.
The triples are renamed to carry the `abi64` ABI suffix found on all
other MIPS64 targets, for consistency and forward compatibility, should
Rust gain support for the n32 ABI one day.
Added support for armv7-unknown-linux-gnueabi/musleabi
Fixes#63101
Some things that are not done and I hope someone can help me with:
* During the ci build of `armv7-unknown-linux-gnueabi` `openssl` must be built (to build cargo) but `openssl` does not yet support this target. This feels slightly like a chicken-and-egg problem, any feedback is welcome.
* Should I add any tests for any of these targets?
