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It is now composed of these main sections:
* Declarations that are shared among all operating systems.
* Declarations that have the same name, but different type signatures
depending on the operating system. Often multiple operating systems
share the same type signatures however.
* Declarations that are specific to a single operating system.
- These are imported one per line so you can see where they come from,
protected by a comptime block to prevent accessing the wrong one.
Closes #19352 by changing the convention to making types `void` and
functions `{}`, so that it becomes possible to update `@hasDecl` sites
to use `@TypeOf(f) != void` or `T != void`. Happily, this ended up
removing some duplicate logic and update some bitrotted feature
detection checks.
A handful of types have been modified to gain namespacing and type
safety. This is a breaking change.
Oh, and the last usage of `usingnamespace` site is eliminated.
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Using std.os.linux directly in e.g. std.posix.timerfd_create() causes
the function to compile but silently fail at runtime when targeting any
OS other than Linux.
To catch errors like this at compile time, std.os.linux must only be
directly accessed within std.posix where there has been a comptime check
that the target os is in fact Linux.
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I believe this was accidentally broken when the E enum for errno values
was introduces. These functions are quite the special case in that they
return the error value directly rather than returning -1 and passing the
error value through the errno variable.
In any case, using a u16 as the return type at the ABI boundary where a
c_int is expected is asking for trouble.
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Using structs with unspecified layout on the ABI boundry can't end well.
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closes #5019
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Export the T struct and winsize struct for targets which have it defined
in std.c. This struct defines libc constants for ioctl syscalls.
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* std.c: consolidate some definitions, making them share code. For
example, freebsd, dragonfly, and openbsd can all share the same
`pthread_mutex_t` definition.
* add type safety to std.c.O
- this caught a bug where mode flags were incorrectly passed as the
open flags.
* 3 fewer uses of usingnamespace keyword
* as per convention, remove purposeless field prefixes from struct field
names even if they have those prefixes in the corresponding C code.
* fix incorrect wasi libc Stat definition
* remove C definitions from incorrectly being in std.os.wasi
* make std.os.wasi definitions type safe
* go through wasi native APIs even when linking libc because the libc
APIs are problematic and wasteful
* don't expose WASI definitions in std.posix
* remove std.os.wasi.rights_t.ALL: this is a footgun. should it be all
future rights too? or only all current rights known? both are
the wrong answer.
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Same as previous commit, but for the libc interface.
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This reverts commit 6f418c11e1ad1150fbdb002cfe1be92bda4e93cb.
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This reverts commit c7bf8bab38f8b89c1371eedb9229e00a29b5ca5b.
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targetted towards platform like Linux/musl (#15791)"
This reverts commit 41502c6aa53a3da31b276c23c4db74db7d04796b.
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This reverts commit 54ea0bbcdddc9e13ed98415d8883f03d59392509.
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Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:
* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
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Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
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targetted towards platform like Linux/musl (#15791)
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The mincore syscall is available on some UNIX like operating systems
and allows a user to determine if a page is resident in memory.
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* pthread_key_t should also be available for non-android platforms
* Also change the type to c_uint because Linux pthreadtypes.h typedefs it as "unsigned int"
Partially addresses #13950
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There are still a few occurrences of "stage1" in the standard library
and self-hosted compiler source, however, these instances need a bit
more careful inspection to ensure no breakage.
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Add functions from `dirent.h` to std.c
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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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It's failing to compile std.os.dl_iterate_phdr correctly.
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The libc interface uses `stat` instead of `stat64` struct.
This fixes, among other things, `zig fmt` accidentally setting the
formatted file's permission to 000.
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Fixes ziglang#10543 on Linux.
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zig fmt now replaces c_void with anyopaque to make updating
code easy.
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Fixes #9707
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Extract existing constants to do with TCP socket options into a 'TCP'
namespace.
Export 'MSG' and 'TCP' from std.os.{linux, windows} into std.c.
Fix compile errors to do with std.x.os.Socket methods related to setting
TCP socket options.
Handle errors in the case that an interface could not be resolved in an
IPv6 address on Windows. Tested using Wine with the loopback interface
disabled.
Have all instantiations of std.x.os.Socket on Windows instantiate an
overlapped socket descriptor. Fixes the '1ms read timeout' test in
std.x.net.tcp.Client. The test would previously deadlock, as read
timeouts only apply to overlapped sockets.
Windows documentation by default recommends that most instantiations of
sockets on Windows be overlapped sockets (s.t. they may operate in both
blocking or nonblocking mode when operated with WSA* syscalls). Refer to
the documentation for WSASocketA for more info.
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Also move some usingnamespace test cases from compare_output to
behavior.
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The proposal #9629 is now accepted, usingnamespace stays but no longer
puts identifiers in scope.
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yikes!
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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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Behavior tests pass on x86_64-linux with -lc
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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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Also make inotify_add_watch's pathname marked as nul-terminated
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closes #8384
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