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got the build runner compiling
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(#25092)
In a library, the two `builtin.link_libc` and `builtin.output_mode ==
.Exe` checks could both be false. Thus, you would get a compile error
even if you specified an `env_map` at runtime. This change turns the
compile error into a runtime panic and updates the documentation to
reflect the runtime requirement.
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This also makes initStreaming preemptively disable file size checking.
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besides simply being redundant work, the now removed normalize call would cause
spawn to errantly fail (BadPath) when passing a relative path which traversed
'above' the current working directory. This case is already handled by leaving
normalization to the windows.wToPrefixedFileW call in
windowsCreateProcessPathExt
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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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Adds a CreateProcessFlags packed struct for all the possible flags to
CreateProcessW on windows. In addition, propagates the existing
`start_suspended` option in std.process.Child which was previously only
used on Darwin. Also adds a `create_no_window` option to std.process.Child
which is a commonly used flag for launching console executables on
windows without causing a new console window to "pop up".
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Windows defines an `ACCESS_DENIED` error code. There is no
PERMISSION_DENIED (or its equivalent) which seems to only exist on POSIX
systems. Fix a couple Windows calls code to return `error.AccessDenied`
for `ACCESS_DENIED` and to stop mapping AccessDenied into
PermissionDenied.
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Removes an inadvisable comparison of Allocator.ptr fields
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Closes: #22433
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`std.Build.Step.Run` makes the very reasonable assumption that
`error.InvalidExe` will be reported on `spawn` if it will happen.
However, this property does not currently hold on POSIX targets. This
is, through a slightly convoluted series of events, partially
responsible for the sporadic `BrokenPipe` errors we've been seeing more
and more in CI runs.
Making `spawn` wait for the child to exec in the POSIX path introduces
a block of up to 400us. So, instead of doing that, we add a new API for
this particular case: `waitForSpawn`. This function is a nop on Windows,
but on POSIX it blocks until the child successfully (or otherwise) calls
`execvpe`, and reports the error if necessary. `std.Build.Step.Run`
calls this function, so that it can get `error.InvalidExe` when it wants
it.
I'm not convinced that this API is optimal. However, I think this entire
API needs to be either heavily refactored or straight-up redesigned
(related: #22504), so I'm not too worried about hitting the perfect API:
I'd rather just fix this bug for now, and figure out the long-term goal
a bit later.
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(#21938)
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memcpy requires non-overlapping arguments.
fifo.realign() handles this case correctly and tries to provide an
optimized implementation.
This probably wasn't hit in practice, as, in a typical usage, fifo's
head is not advanced.
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The compiler actually doesn't need any functional changes for this: Sema
does reification based on the tag indices of `std.builtin.Type` already!
So, no zig1.wasm update is necessary.
This change is necessary to disallow name clashes between fields and
decls on a type, which is a prerequisite of #9938.
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Instead of calling the dynamically loaded kernel32.GetLastError, we can extract it from the TEB.
As shown by [Wine](https://github.com/wine-mirror/wine/blob/34b1606019982b71818780bc84b76460f650af31/include/winternl.h#L439), the last error lives at offset 0x34 of the TEB in 32-bit Windows and at offset 0x68 in 64-bit Windows.
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I renamed std.process.Child.CreateProcessSupportedExtension to WindowsExtension
and made it public to avoid duplicating the list of extensions.
While here, I also improved it to not misreport OOM from std.fs.realpathAlloc()
as a generic failure to find the program, but instead panic like the rest of the
build system does for OOM.
Closes #20314.
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There was not a way to pass a progress node to this function until now.
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Before this fix, the dup2 of the progress pipe was clobbering the cwd
fd, causing the fchdir to return ENOTDIR in between fork() and exec().
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documenting my assumptions via comptime assertion
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This fix is already in master branch for stdin, stdout, and stderr; this
commit solves the same problem but for the progress pipe.
Both fixes were originally included in one commit on this branch,
however it was split it into two so that master branch could receive the
fix before the progress branch is merged.
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and properly dup2 the file descriptor to make it handle the case when
other files are already open
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The added comment explains the issue here relatively well. The new
progress API made this bug obvious because it became visibly clear that
certain Compile steps were seemingly "hanging" until other steps
completed. As it turned out, these child processes had raced to spawn,
and hence one had inherited the other's stdio pipes, meaning the `poll`
call in `std.Build.Step.evalZigProcess` was not identifying the child
stdout as closed until an unrelated process terminated.
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functions
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