Many build systems that support Swift don't use swiftc to drive the linker. To make things
easier for these build systems, also use autolinking to pull in the needed compatibility
libraries. This is less ideal than letting the driver add it at link time, since individual
compile jobs don't know whether they're building an executable or not. Introduce a
`-disable-autolink-runtime-compatibility` flag, which build systems that do drive the linker
with swiftc can pass to avoid autolinking.
rdar://problem/50057445
When loading a module supporting multiple targets, the module loader now looks for a file named with a normalized version of the target triple first, and only falls back to the architecture name if the normalized triple is not found.
LLVM r340675 added a new HermitCore OS type to triples, which broke the
Swift build because it is using -Werror,-Wswitch and the new value was not
handled in swift::getPlatformNameForTriple
This silences the instances of the warning from Visual Studio about not all
codepaths returning a value. This makes the output more readable and less
likely to lose useful warnings. NFC.
LLVM r340675 added a new HermitCore OS type to triples, which broke the
Swift build because it is using -Werror,-Wswitch and the new value was not
handled in swift::getPlatformNameForTriple
> warning C4062: enumerator 'llvm::Triple::Fuchsia' in switch of enum
'llvm::Triple::OSType' is not handled
> warning C4062: enumerator 'llvm::Triple::Contiki' in switch of enum
'llvm::Triple::OSType' is not handled
> warning C4062: enumerator 'llvm::Triple::LastOSType' in switch of enum
'llvm::Triple::OSType' is not handled
Fixed for the difference of Cygwin with other Windows variants (MSVC,
Itanium, MinGW).
- The platform name is renamed to "cygwin" from "windows" which is used
for searching the standard libraries.
- The consideration for DLL storage class (DllExport/DllImport) is not
required for Cygwin and MinGW. There is no problem when linking in
these environment.
- Cygwin should use large memory model as default.(This may be changed
if someone ports to 32bit)
- Cygwin and MinGW should use the autolink feature in the sameway of
Linux due to the linker's limit.
Rather than have a series of cascading if conditionals, use a switch. Although
Darwin and android are special, they can be handled just as cleanly in the
switch version. NFC.
On the Raspberry Pi 2 when trying to import Glibc, without this patch, it will attempt to
find the module map at "/usr/lib/swift/linux/armv7l/glibc.modulemap" and
fail to do so.
With this patch it will attempt to find the module map at
"/usr/lib/swift/linux/armv7/glibc.modulemap" where it will succeed in
finding the module map.
Similar behavior currently happens in the Driver and Frontend. To DRY up
this behavior it has been extracted to the Swift platform.
This adds an Android target for the stdlib. It is also the first
example of cross-compiling outside of Darwin.
Mailing list discussions:
1. https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20151207/000171.html
2. https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20151214/000492.html
The Android variant of Swift may be built using the following `build-script`
invocation:
```
$ utils/build-script \
-R \ # Build in ReleaseAssert mode.
--android \ # Build for Android.
--android-ndk ~/android-ndk-r10e \ # Path to an Android NDK.
--android-ndk-version 21 \
--android-icu-uc ~/libicu-android/armeabi-v7a/libicuuc.so \
--android-icu-uc-include ~/libicu-android/armeabi-v7a/icu/source/common \
--android-icu-i18n ~/libicu-android/armeabi-v7a/libicui18n.so \
--android-icu-i18n-include ~/libicu-android/armeabi-v7a/icu/source/i18n/
```
Android builds have the following dependencies, as can be seen in
the build script invocation:
1. An Android NDK of version 21 or greater, available to download
here: http://developer.android.com/ndk/downloads/index.html.
2. A libicu compatible with android-armv7.
Introduce DarwinPlatformKind, which would allow us to switch on darwin
platforms instead of copying and pasting the brittle logic in several places.
Use the helper method to simplify ClangImporter.
We already do for the iOS simulator and the tvOS simulator. This fixes
the 'unrecognized selector sent to instance’ bridging crashes in the stdlib
watch simulator tests.
Greg Parker did the hard work of tracking this down and suggested the fix.
<rdar://problem/20932146>
Swift SVN r28846
- Add frontend and standard library build support for tvOS.
- Add frontend support for watchOS.
watchOS standard library builds are still disabled during SDK bring-up.
To build for TVOS, specify --tvos to build-script.
To build for watchOS, specify --watchos to build-script (not yet supported).
This patch does not include turning on full tests for TVOS or watchOS, and
will be included in a follow-up patch.
Swift SVN r26278
