To avoid having duplicated macro implementations in both the device and
simulator platforms, when building for a simulator platform, pass
`-external-plugin-path` that points into the *device* platform. There
is no need to have macro implementations in the simulator platforms.
Implements rdar://112563655.
Reformatting everything now that we have `llvm` namespaces. I've
separated this from the main commit to help manage merge-conflicts and
for making it a bit easier to read the mega-patch.
This is phase-1 of switching from llvm::Optional to std::optional in the
next rebranch. llvm::Optional was removed from upstream LLVM, so we need
to migrate off rather soon. On Darwin, std::optional, and llvm::Optional
have the same layout, so we don't need to be as concerned about ABI
beyond the name mangling. `llvm::Optional` is only returned from one
function in
```
getStandardTypeSubst(StringRef TypeName,
bool allowConcurrencyManglings);
```
It's the return value, so it should not impact the mangling of the
function, and the layout is the same as `std::optional`, so it should be
mostly okay. This function doesn't appear to have users, and the ABI was
already broken 2 years ago for concurrency and no one seemed to notice
so this should be "okay".
I'm doing the migration incrementally so that folks working on main can
cherry-pick back to the release/5.9 branch. Once 5.9 is done and locked
away, then we can go through and finish the replacement. Since `None`
and `Optional` show up in contexts where they are not `llvm::None` and
`llvm::Optional`, I'm preparing the work now by going through and
removing the namespace unwrapping and making the `llvm` namespace
explicit. This should make it fairly mechanical to go through and
replace llvm::Optional with std::optional, and llvm::None with
std::nullopt. It's also a change that can be brought onto the
release/5.9 with minimal impact. This should be an NFC change.
When the current toolchain is not a Xcode toolchain, derive
'-external-plugin-path' poinintng Xcode plugins paths, so we can use
plugins in Xcode.
rdar://108624128
* Remove support for linking arclite
Darwin no longer uses arclite and it's no longer distributed
in the macOS SDKs.
This leaves the options -link-objc-runtime and -no-link-objc-runtime
in place, but strips out all the logic that actually used them.
* Remove a dead function
* Warn if `-link-objc-runtime` is used
* Update tests to not look for arclite library
* Add an explicit test for the deprecation warning
* Move the macOS-only -link-objc-runtime test to a separate test file
`getValue` -> `value`
`getValueOr` -> `value_or`
`hasValue` -> `has_value`
`map` -> `transform`
The old API will be deprecated in the rebranch.
To avoid merge conflicts, use the new API already in the main branch.
rdar://102362022
This patch gets everything to the point of building the library, but it
doesn't run yet since I have missing symbols.
Unlike previous compatibility libraries and the concurrency
compatibility library, I'm organizing the headers a bit more. This is
because we're merging the two libraries into one. They share some common
header names, and while I could rename them for namespacing purposes,
it's easier to just use a directory structure for this.
The `include/Runtime` and corresponding `Runtime/` directories are for
backdeployed changes to the stdlib itself.
The `include/Concurrency` and corresponding `Concurrency/` directories
are for backdeployed changes to the concurrency runtimes.
The `VersionTuple` API was changed llvm/llvm-project
219672b8dd06c4765185fa3161c98437d49b4a1b to return `VersionTuple`
from `get*Version` rather than pass in major, minor, and subminor output
parameters. Update uses to the new API.
Note that `getMacOSXVersion` is slightly different in that it returns a
boolean while taking a `VersionTuple` output parameter to match its
previous behaviour. There doesn't seem to be any use that actually
checks this value though, so we should either update the API to return
an `Optional` and actually check it *or* remove the "failure" case and
return a `VersionTuple` like all the others.
This patch adds a new Darwin Swift driver environment variable in the spirit of
RC_DEBUG_OPTIONS, called RC_DEBUG_PREFIX_MAP, which allows a meta build tool to
add one additional -fdebug-prefix-map entry without the knowledge of the build
system.
See also https://reviews.llvm.org/D119850
rdar://85224717
Clang enforces a minimum 13.1 deployment target. The driver, API
checker, and various tests assume 13.0 is a valid minimum. Update these
to reflect the actual 13.1 minimum.
Resolves rdar://84177900
Make sure that we add the appropriate rpaths so that the appropriate
_Concurrency back-deployment library can be picked up.
We don't need to update the Swift driver since it uses the C++ driver
as the source of truth to determine if the relevant rpath should be
added or not.
In a back deployment scenario, this will provide a place where one could provide
function implementations that are not available in the relevant stdlib.
This is just setting up for future work and isn't doing anything interesting
beyond wiring it up/making sure that it is wired up correctly with tests.
In a back deployment scenario, this will provide a place where one could provide
function implementations that are not available in the relevant stdlib.
This is just setting up for future work and isn't doing anything interesting
beyond wiring it up/making sure that it is wired up correctly with tests.
This commit adds support for the -lto_library flag, allowing users to specify a custom LTO library on Darwin. This also fixes an issue where the default LTO library is used even if Driver is run from inside an alternate toolchain.
If the driver is only set up to get the frontend invocation (e.g. from sourcekitd), don't validate that we can link against ARCLite because
a) we don't care about link-time when we are only interested in the frontend invocation
b) finding arclite might cause us to find clang using xcrun which in turn can cause sourcekitd to hang.
rdar://50659268
This commit adds LTO support for handling linker options and LLVM BC
emission. Even for ELF, swift-autolink-extract is unnecessary because
linker options are embeded in LLVM BC content when LTO.
The compiler_rt static library for iOS simulator is now packaged in a separate static archive from the one for iOS devices. Adjust linker invocation to match.
Fixes rdar://66192830 / rdar://66060312.
This doesn't yet allow including C++ headers on platforms where libc++
isn't the default; see comments in UnixToolChains.cpp for details.
However, it does, for example, allow throwing and catching exceptions in C++
code used through interop, unblocking
https://github.com/apple/swift/pull/30674/files.
The flags (-enable-experimental-cxx-interop and -experimental-cxx-stdlib) carry
"experimental" in the name to emphasize that C++ interop is still an
experimental feature.
Co-authored-by: Michael Forster <forster@google.com>
Describe the backward-deployment libraries via a preprocessor-driven
table. Macro-metaprogramming the two places in the code base---the
driver and IRGen---to use this tabble to determine which
backward-compatibility libraries to link against.
