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[docs] GettingStarted: Restructure "The actual build" section

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Anthony Latsis
2024-01-19 20:55:15 +03:00
parent bed316f4cc
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docs/HowToGuides/GettingStarted.md
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@@ -253,42 +253,31 @@ Phew, that's a lot to digest! Now let's proceed to the actual build itself!
### The actual build
1. Build the toolchain with optimizations, debuginfo, and assertions, using
Ninja.
- macOS:
```sh
utils/build-script --skip-build-benchmarks \
--skip-ios --skip-watchos --skip-tvos --swift-darwin-supported-archs "$(uname -m)" \
--sccache --release-debuginfo --swift-disable-dead-stripping \
--bootstrapping=hosttools
```
- Linux:
```sh
utils/build-script --release-debuginfo
```
If you installed and want to use Sccache, include the `--sccache` option in
the invocation as well.
<!-- FIXME: Without this "hard" line break, the note doesn’t get properly spaced from the bullet -->
<br />
Build the toolchain with optimizations, debuginfo, and assertions, using Ninja:
> **Note**
> If you are planning to work on the compiler on macOS, but not the parts that are
> written in Swift, pass `--bootstrapping=hosttools` to speed up local
> development.
- macOS:
```sh
utils/build-script --skip-build-benchmarks \
--skip-ios --skip-watchos --skip-tvos --swift-darwin-supported-archs "$(uname -m)" \
--sccache --release-debuginfo --swift-disable-dead-stripping \
--bootstrapping=hosttools
```
- Linux:
```sh
utils/build-script --release-debuginfo
```
- If you want to additionally build the Swift core libraries, i.e.,
swift-corelibs-libdispatch, swift-corelibs-foundation, and
swift-corelibs-xctest, add `--xctest` to the invocation.
This will create a directory `swift-project/build/Ninja-RelWithDebInfoAssert`
containing the Swift compiler and standard library and clang/LLVM build artifacts.
If the build fails, see [Troubleshooting build issues](#troubleshooting-build-issues).
- If you installed and want to use Sccache, add `--sccache` to the invocation.
- If you want to use a debugger such as LLDB on compiler sources, add
`--debug-swift` to the invocation: a fruitful debugging experience warrants
non-optimized code besides debug information.
> **Note**
> `--release-debuginfo` means that although debug information will be produced, all targets will
> be compiled in release mode, meaning optimized code, which can affect your debugging experience.
> Consider [`--debug-swift` to build a debug variant of the compiler](#debugging-issues) and have
> the swift targets (including `swift-frontend`) built in debug mode.
On Linux, if you would like to additionally build the Swift corelibs,
ie swift-corelibs-libdispatch, swift-corelibs-foundation, and swift-corelibs-xctest,
add the `--xctest` flag to `build-script`.
This will create a directory `swift-project/build/Ninja-RelWithDebInfoAssert`
containing the Swift compiler and standard library and clang/LLVM build artifacts.
If the build fails, see [Troubleshooting build issues](#troubleshooting-build-issues).
In the following sections, for simplicity, we will assume that you are using a
`Ninja-RelWithDebInfoAssert` build on macOS, unless explicitly mentioned otherwise.