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aarch64-ios-macabi
Apple's own headers and tbd files prefer to think of Mac Catalyst as a distinct
OS target. Earlier, when DriverKit support was added to LLVM, it was represented
a distinct OS. So why Apple decided to only represent Mac Catalyst as an ABI in
the target triple is beyond me. But this isn't the first time they've ignored
established target triple norms (see: armv7k and aarch64_32) and it probably
won't be the last.
While doing this, I also audited all Darwin OS prongs throughout the codebase
and made sure they cover all the tags.
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`std.Io.tty.Config.detect` may be an expensive check (e.g. involving
syscalls), and doing it every time we need to print isn't really
necessary; under normal usage, we can compute the value once and cache
it for the whole program's execution. Since anyone outputting to stderr
may reasonably want this information (in fact they are very likely to),
it makes sense to cache it and return it from `lockStderrWriter`. Call
sites who do not need it will experience no significant overhead, and
can just ignore the TTY config with a `const w, _` destructure.
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std: Introduce `Io` Interface
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As with Solaris (dba1bf935390ddb0184a4dc72245454de6c06fd2), we have no way to
actually audit contributions for these OSs. IBM also makes it even harder than
Oracle to actually obtain these OSs.
closes #23695
closes #23694
closes #3655
closes #23693
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only thing remaining is using libc dns resolution when linking libc
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Also avoid resolving symbols in libraries that were later removed if possible.
closes #24347
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Support generating import libraries from mingw .def files without LLVM
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For the supported COFF machine types of X64 (x86_64), I386 (x86), ARMNT (thumb), and ARM64 (aarch64), this new Zig implementation results in byte-for-byte identical .lib files when compared to the previous LLVM-backed implementation.
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closes https://github.com/ziglang/zig/issues/25455
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_LIBCXXABI_BUILDING_LIBRARY
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loongarch64, riscv32, riscv64
https://www.openwall.com/lists/musl/2025/09/28/2
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https://github.com/llvm/llvm-project/commit/ba87515fea90b5d55836a8e3be63a7e683ce299d
closes #25376
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https://www.openwall.com/lists/musl/2025/09/27/1
closes #25367
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std.Io: delete GenericReader, AnyReader, FixedBufferStream; and related API breakage
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and delete deprecated alias std.io
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perhaps these APIs have the defaults backwards, eh?
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See: https://docs.freebsd.org/en/books/porters-handbook/versions
Closes #24819.
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Closes #24818.
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The functions `Compilation.create` and `Compilation.update` previously
returned inferred error sets, which had built up a lot of crap over
time. This meant that certain error conditions -- particularly certain
filesystem errors -- were not being reported properly (at best the CLI
would just print the error name). This was also a problem in
sub-compilations, where at times only the error name -- which might just
be something like `LinkFailed` -- would be visible.
This commit makes the error handling here more disciplined by
introducing concrete error sets to these functions (and a few more as a
consequence). These error sets are small: errors in `update` are almost
all reported via compile errors, and errors in `create` are reported
through a new `Compilation.CreateDiagnostic` type, a tagged union of
possible error cases. This allows for better error reporting.
Sub-compilations also report errors more correctly in several cases,
leading to more informative errors in the case of compiler bugs.
Also fixes some race conditions in library building by replacing calls
to `setMiscFailure` with calls to `lockAndSetMiscFailure`. Compilation
of libraries such as libc happens on the thread pool, so the logic must
synchronize its access to shared `Compilation` state.
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If an error occured which prevented a prelink task from being queued,
then `pending_prelink_tasks` would never be decremented, which could
cause deadlocks in some cases. So, instead of calculating ahead of time
the number of prelink tasks to expect, we use a simpler strategy which
is much like a wait group: we add 1 to a value when we spawn a worker,
and in the worker function, `defer` decrementing the value. The initial
value is 1, and there's a decrement after all of the workers are
spawned, so once it hits 0, prelink is done (be it with a failure or a
success).
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This reverts commit b461d07a5464aec86c533434dab0b58edfffb331.
After some discussion in the team, we've decided that this is too disruptive,
especially because the linker errors are less than helpful. That's a fixable
problem, so we might reconsider this in the future, but revert it for now.
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I accidentally regressed this in the LLVM 20 upgrade.
Closes #24437.
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added adapter to AnyWriter and GenericWriter to help bridge the gap
between old and new API
make std.testing.expectFmt work at compile-time
std.fmt no longer has a dependency on std.unicode. Formatted printing
was never properly unicode-aware. Now it no longer pretends to be.
Breakage/deprecations:
* std.fs.File.reader -> std.fs.File.deprecatedReader
* std.fs.File.writer -> std.fs.File.deprecatedWriter
* std.io.GenericReader -> std.io.Reader
* std.io.GenericWriter -> std.io.Writer
* std.io.AnyReader -> std.io.Reader
* std.io.AnyWriter -> std.io.Writer
* std.fmt.format -> std.fmt.deprecatedFormat
* std.fmt.fmtSliceEscapeLower -> std.ascii.hexEscape
* std.fmt.fmtSliceEscapeUpper -> std.ascii.hexEscape
* std.fmt.fmtSliceHexLower -> {x}
* std.fmt.fmtSliceHexUpper -> {X}
* std.fmt.fmtIntSizeDec -> {B}
* std.fmt.fmtIntSizeBin -> {Bi}
* std.fmt.fmtDuration -> {D}
* std.fmt.fmtDurationSigned -> {D}
* {} -> {f} when there is a format method
* format method signature
- anytype -> *std.io.Writer
- inferred error set -> error{WriteFailed}
- options -> (deleted)
* std.fmt.Formatted
- now takes context type explicitly
- no fmt string
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preparing to rearrange std.io namespace into an interface
how to upgrade:
std.io.getStdIn() -> std.fs.File.stdin()
std.io.getStdOut() -> std.fs.File.stdout()
std.io.getStdErr() -> std.fs.File.stderr()
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Might have been broken in 05d8b565ad1a1d6c0c1e93dc47f1d828043fcafc.
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This matches what we do for small helper libraries like this in MinGW-w64. It
simplifies the compiler a bit, and also means the build system doesn't have to
treat these library names specially.
Closes #24325.
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Closes #23971.
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This struct is larger than 256 bytes and code that copies it
consistently shows up in profiles of the compiler.
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glibc, freebsd, and netbsd all do caching manually, because of the fact
that they emit multiple files which they want to cache as a block.
Therefore, the individual sub-compilation on a cache miss should be
using `CacheMode.none` so that we can specify the output paths for each
sub-compilation as being in the shared output directory.
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