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These functions are currently footgunny when working with pointers to
arrays and slices. They just return the stated length of the array/slice
without iterating and looking for the first sentinel, even if the
array/slice is a sentinel terminated type.
From looking at the quite small list of places in the standard
library/compiler that this change breaks existing code, the new code
looks to be more readable in all cases.
The usage of std.mem.span/len was totally unneeded in most of the cases
affected by this breaking change.
We could remove these functions entirely in favor of other existing
functions in std.mem such as std.mem.sliceTo(), but that would be a
somewhat nasty breaking change as std.mem.span() is very widely used for
converting sentinel terminated pointers to slices. It is however not at
all widely used for anything else.
Therefore I think it is better to break these few non-standard and
potentially incorrect usages of these functions now and at some later
time, if deemed worthwhile, finally remove these functions.
If we wait for at least a full release cycle so that everyone adapts to
this change first, updating for the removal could be a simple find and
replace without needing to worry about the semantics.
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Previously, this function used incorrect registers for the munmap syscall, leading to detached threads not cleaning up.
closes #12690
Co-authored-by: bxlr <biexelar@diroot.org>
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The previous code is a compile error in stage2 as well as the
upcoming lang spec.
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stage1 has a missing compile error for this situation.
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Rename all references of sparcv9 to sparc64, to make Zig align more with
other projects. Also, added new function to convert glibc arch name to Zig
arch name, since it refers to the architecture as sparcv9.
This is based on the suggestion by @kubkon in PR 11847.
(https://github.com/ziglang/zig/pull/11487#pullrequestreview-963761757)
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* std: start removing redundant ResetEvents
* src: fix other uses of std.Thread.ResetEvent
* src: add builtin.sanitize_thread for tsan detection
* atomic: add Atomic.fence for proper fencing with tsan
* Thread: remove the other ResetEvent's and rewrite the current one
* Thread: ResetEvent docs
* zig fmt + WaitGroup.reset() fix
* src: fix build issues for ResetEvent + tsan
* Thread: ResetEvent tests
* Thread: ResetEvent module doc
* Atomic: replace llvm *p memory constraint with *m
* panicking: handle spurious wakeups in futex.wait() when waiting for abort()
* zig fmt
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* Thread: minor cleanups
* Thread: rewrite Mutex
* Thread: introduce Futex.Deadline
* Thread: Condition rewrite + cleanup
* Mutex: optimize lock fast path
* Condition: more docs
* Thread: more mutex + condition docs
* Thread: remove broken Condition test
* Thread: zig fmt
* address review comments + fix Thread.DummyMutex in GPA
* Atomic: disable bitRmw x86 inline asm for stage2
* GPA: typo mutex_init
* Thread: remove noalias on stuff
* Thread: comment typos + clarifications
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std.Thread.getName/setName: rework windows implementation
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* Fix FUTEX usage in std.Thread.Condition - It was using an old name.
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zig fmt now replaces c_void with anyopaque to make updating
code easy.
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dragonfly: port Thread.setname/getname
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See #3811
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* add team_info, area_info
* update signature for get_next_image_info
* add error checks for haiku system calls
* update and cleanup of haiku constants
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This fixes the wrong branch target and register check.
(https://github.com/ziglang/zig/issues/9801)
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Return error at end of std.Thread.setName/getName to simplify flow-control.
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* std lib tests are passing on x86_64-linux with and without -lc
* stage2 is building from source on x86_64-linux
* down to 38 remaining uses of `usingnamespace`
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We already have a LICENSE file that covers the Zig Standard Library. We
no longer need to remind everyone that the license is MIT in every single
file.
Previously this was introduced to clarify the situation for a fork of
Zig that made Zig's LICENSE file harder to find, and replaced it with
their own license that required annual payments to their company.
However that fork now appears to be dead. So there is no need to
reinforce the copyright notice in every single file.
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The primary purpose of this change is to eliminate one usage of
`usingnamespace` in the standard library - specifically the usage for
errno values in `std.os.linux`.
This is accomplished by truncating the `E` prefix from error values, and
making errno a proper enum.
A similar strategy can be used to eliminate some other `usingnamespace`
sites in the std lib.
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Signed-off-by: Takeshi Yoneda <takeshi@tetrate.io>
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* Breaking language change: inline assembly must use string literal
syntax. This is in preparation for inline assembly improvements that
involve more integration with the Zig language. This means we cannot
rely on text substitution.
* Liveness: properly handle inline assembly and function calls with
more than 3 operands.
- More than 35 operands is not yet supported. This is a low priority
to implement.
- This required implementation in codegen.zig as well.
* Liveness: fix bug causing incorrect tomb bits.
* Sema: enable switch expressions that are evaluated at compile-time.
- Runtime switch instructions still need to be reworked in this
branch. There was a TODO left here (by me) with a suggestion to do
some bigger changes as part of the AIR memory reworking. Now that
time has come and I plan to honor the suggestion in a future commit
before merging this branch.
* AIR printing: fix missing ')' on alive instructions.
We're back to "hello world" working for the x86_64 backend.
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