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Elf2: more progress
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windows: Make readLinkW APIs output WTF-16, reduce stack usage of callers
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- Affects the following functions:
+ `std.fs.Dir.readLinkW`
+ `std.os.windows.ReadLink`
+ `std.os.windows.ntToWin32Namespace`
+ `std.posix.readlinkW`
+ `std.posix.readlinkatW`
Each of these functions (except `ntToWin32Namespace`) took WTF-16 as input and would output WTF-8, which makes optimal buffer re-use difficult at callsites and could force unnecessary WTF-16 <-> WTF-8 conversion during an intermediate step.
The functions have been updated to output WTF-16, and also allow for the path and the output to re-use the same buffer (i.e. in-place modification), which can reduce the stack usage at callsites. For example, all of `std.fs.Dir.readLink`/`readLinkZ`/`std.posix.readlink`/`readlinkZ`/`readlinkat`/`readlinkatZ` have had their stack usage reduced by one PathSpace struct (64 KiB) when targeting Windows.
The new `ntToWin32Namespace` takes an output buffer and returns a slice from that instead of returning a PathSpace, which is necessary to make the above possible.
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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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- ILSEQ -> error.BadPathName
- implement dirStatPath for WASI
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I'm not ready to rework MachO linker file access at the moment.
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this feels better
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got the build runner compiling
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fix std lib compilation errors caused by introducing std.Io
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There is no straightforward way for the Zig team to access the Solaris system
headers; to do this, one has to create an Oracle account, accept their EULA to
download the installer ISO, and finally install it on a machine or VM. We do not
have to jump through hoops like this for any other OS that we support, and no
one on the team has expressed willingness to do it.
As a result, we cannot audit any Solaris contributions to std.c or other
similarly sensitive parts of the standard library. The best we would be able to
do is assume that Solaris and illumos are 100% compatible with no way to verify
that assumption. But at that point, the solaris and illumos OS tags would be
functionally identical anyway.
For Solaris especially, any contributions that involve APIs introduced after the
OS was made closed-source would also be inherently more risky than equivalent
contributions for other proprietary OSs due to the case of Google LLC v. Oracle
America, Inc., wherein Oracle clearly demonstrated its willingness to pursue
legal action against entities that merely copy API declarations.
Finally, Oracle laid off most of the Solaris team in 2017; the OS has been in
maintenance mode since, presumably to be retired completely sometime in the 2030s.
For these reasons, this commit removes all Oracle Solaris support.
Anyone who still wishes to use Zig on Solaris can try their luck by simply using
illumos instead of solaris in target triples - chances are it'll work. But there
will be no effort from the Zig team to support this use case; we recommend that
people move to illumos instead.
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This same change was applied in 69007f096177143086e28da0dc1a0eff4efcc52c but accidentally reverted in 7bf740ee718f4b6109cd9fe7014d1784d48ada48
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std.Io: Writer and Reader bug fixes related to sendFile, delimiters, Limited, and seeking
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fixes #25196
Co-authored-by: Andrew Kelley <andrew@ziglang.org>
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- Rename modified `realpathW` to `realpathW2`
- Re-add original `realpathW`
- Add deprecation notice to `realpathW`
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