Alastair Houghton

[LLDB][ELF] Fix section unification to not just use names.

5

Section unification cannot just use names, because it's valid for ELF binaries to have multiple sections with the same name. We should check other section properties too. rdar://124467787

[libunwind] Tweak tests for musl support.

1

We can't use `dladdr()` in the tests, because when we're statically linking with musl that function is a no-op. Additionally, because musl disables emission of unwind information in its build,...

[libc++abi] Disable forced_unwind4 test for musl.

1

This test won't pass on musl, but we should still run it for other Linux platforms. rdar://123436716

[libc++] Fix tests on musl.

1

One or two of the tests need slight tweaks to make them pass when building with musl. rdar://118885724

[LLDB] Add lldb-python-scripts to the things installed on Linux.

1

We should be installing the python scripts here. rdar://123436512

[Triple] Add "swift" as a vendor.

1

We want this so we can uniquely identify our fully-static Linux target using a triple (since we wish to make decisions about it in the compiler driver that wouldn't be...

[Build] Turn off -undefined-version when building with lld

1

Newer lld defaults to `-no-undefined-version`, which breaks the build because of various symbols that are (a) versioned and (b) not always defined (depending on platform). rdar://123436280

[Clang] Prioritise built-in headers, even on musl.

1

Clang was putting its built-in headers at the end of the search path if running on musl; this was a mistake, because it breaks libc++, as the latter tries to...

[Build] Add the new fully-static Linux SDK.

15

Declare a new `LINUX_STATIC` SDK and configure it. Add options to set the build architectures for the `LINUX` and `LINUX_STATIC` SDKs, similar to what we have for Darwin, because we'll...

[Stdlib][Build] Fix the standard library build for fully static Linux.

2

Mostly this just means adding `Musl` as a module dependency of various things and making sure that we build things for `swift_static` even if `SWIFT_BUILD_STATIC_STDLIB` isn't enabled. There's also a...