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This test works by assuming that std.ArrayList will grow with a specific
capacity increasing pattern, which is an invalid assumption. Delete the
offending test.
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I measured this against master branch and found no statistical
difference. Since this code is simpler and logically superior due to
always leaving sufficient unused capacity when growing, it is preferred
over status quo.
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std: delete SegmentedList again
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Adds `addFileContentArg` and `addPrefixedFileContentArg` to pass the content
of a file with a lazy path as an argument to a `std.Build.Step.Run`.
This enables replicating shell `$()` / cmake `execute_process` with `OUTPUT_VARIABLE`
as an input to another `execute_process` in conjuction with `captureStdOut`/`captureStdErr`.
To also be able to replicate `$()` automatically trimming trailing newlines and cmake
`OUTPUT_STRIP_TRAILING_WHITESPACE`, this patch adds an `options` arg to those functions
which allows specifying the desired handling of surrounding whitespace.
The `options` arg also allows to specify a custom `basename` for the output. e.g.
to add a file extension (concrete use case: Zig `@import()` requires files to have a
`.zig`/`.zon` extension to recognize them as valid source files).
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The data structure was originally added in
41e1cd185b82a518c58c92544c45f0348c03ef74 and then removed in
50a336fff899ebd8a687c453ec6beb18a5a9baf9, but brought back in
711bf55eaa643c3d05640bebbf3e4315477b8ed8 for Decl in the compiler
frontend, and then the last reference to it was eliminated in
548a087fafeda5b07d2237d5137906b8d07da699 which removed Decl in favor of
Nav and Cau.
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greatly improve capabilities of the fuzzer
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Miscellaneous LoongArch work to prepare for CI
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This PR significantly improves the capabilities of the fuzzer.
The changes made to the fuzzer to accomplish this feat mostly include
tracking memory reads from .rodata to determine fresh inputs, new
mutations (especially the ones that insert const values from .rodata
reads and __sanitizer_conv_const_cmp), and minimizing found inputs.
Additionally, the runs per second has greatly been increased due to
generating smaller inputs and avoiding clearing the 8-bit pc counters.
An additional feature added is that the length of the input file is now
stored and the old input file is rerun upon start.
Other changes made to the fuzzer include more logical initialization,
using one shared file `in` for inputs, creating corpus files with
proper sizes, and using hexadecimal-numbered corpus files for
simplicity.
Furthermore, I added several new fuzz tests to gauge the fuzzer's
efficiency. I also tried to add a test for zstandard decompression,
which it crashed within 60,000 runs (less than a second.)
Bug fixes include:
* Fixed a race conditions when multiple fuzzer processes needed to use
the same coverage file.
* Web interface stats now update even when unique runs is not changing.
* Fixed tokenizer.testPropertiesUpheld to allow stray carriage returns
since they are valid whitespace.
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* Remove the generic model; we already have generic_la32 and generic_la64 and
pick appropriately based on bitness.
* Remove the loongarch64 model. We used this as our baseline for 64-bit, but it's
actually pretty misleading and useless; it doesn't represent any real CPU and
has less features than generic_la64.
* Add la64v1_0 and la64v1_1 models.
* Change our baseline CPU model for 64-bit to be la64v1_0, thus adding LSX to
the baseline feature set.
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ref #4591
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https://github.com/llvm/llvm-project/issues/159529
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LLVM miscompiles these.
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https://github.com/llvm/llvm-project/issues/159200
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std: Add several sockopt-related constants and structs
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Re-enable std.posix "sigset_t bits" test
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std.os.linux.setsid(): return raw syscall0 result
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std.*.ptrace: support more platforms and features more correctly
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std.crypto: add AES-SIV and AES-GCM-SIV
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Ascon is the family of cryptographic constructions standardized by NIST
for lightweight cryptography.
The Zig standard library already included the Ascon permutation itself,
but higher-level constructions built on top of it were intentionally
postponed until NIST released the final specification.
That specification has now been published as NIST SP 800-232:
https://csrc.nist.gov/pubs/sp/800/232/final
With this publication, we can now confidently include these constructions
in the standard library.
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* std.sort.pdq: fix out-of-bounds access in partialInsertionSort
When sorting a sub-range that doesn't start at index 0, the
partialInsertionSort function could access indices below the range
start. The loop condition `while (j >= 1)` didn't respect the
arbitrary range boundaries [a, b).
This changes the condition to `while (j > a)` to ensure indices
never go below the range start, fixing the issue where pdqContext
would access out-of-bounds indices.
Fixes #25250
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In ed25519.zig, we checked if a test succeeds, in which case we
returned an error. This was confusing, and Andrew pointed out that
Zig weights branches against errors by default.
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The Zig standard library lacked schemes that resist nonce reuse.
AES-SIV and AES-GCM-SIV are the standard options for this.
AES-GCM-SIV can be very useful when Zig is used to target embedded
systems, and AES-SIV is especially useful for key wrapping.
Also take it as an opportunity to add a bunch of test vectors to
modes.ctr and make sure it works with block ciphers whose size is
not 16.
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Any 32 bit immediate is allowed in a BPF instruction, including those
greater than the largest positive i32 value.
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Resolves: #25221
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The switch from @bitCast() to @intCast() here safety-checks
Linux's assertion that these 3 calls never return errors (negative
values as pid_t). getppid() can legally return 0 if the parent is
in a different pid namespace, but this is not an error.
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When not linking libc on 64-bit Linux and calling posix.setsid(),
we get a type error at compile time inside of posix.errno(). This
is because posix.errno()'s non-libc branch expects a usize-sized
value, which is what all the error-returning os.linux syscalls
return, and linux.setsid() instead returned a pid_t, which is only
32 bits wide.
This and the other 3 pid-related calls just below it (getpid(),
getppid(), and gettid()) are the only Linux syscall examples here
that are casting their return values to pid_t. For the other 3
this makes sense: those calls are documented to have no possible
errors and always return a valid pid_t value.
However, setsid() actually can return the error EPERM, and
therefore needs to return the raw value from syscall0 for
posix.errno() to process like normal.
Additionally, posix.setsid() needs an @intCast(rc) for the success
case as a result, like most other such cases.
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We need std.os.linux and std.c to agree on the types here, or else
we'd have to pointlessly cast across the difference up in the
std.posix wrapper. I ran into this as a type error the first time
I tried to compile my code that calls posix.socketpair() on Linux
without libc.
All of our existing socket calls with these kinds of arguments in
std (including the existing c.socketpair as well as
os.linux.socket in this same file) use unsigned for all of these
parameters, and so this brings linux.socketpair() into alignment
with everything else.
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std: add a Deque data structure
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Fixes #24380
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Re-enable the test. Will trigger #24380 as-is, but follow-on change moes
this code over to test/standalone.
Make the test a bit easier to debug by stashing the "seen" signal number
in the shared `seen_sig` (instead of just incrementing a counter for each
hit). And only doing so if the `seen_sig` is zero.
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These tests aren't (directly) using Posix APIs, so they don't need to be
in posix/test.zig. Put them over with the code and tests in Thread.zig.
Since the spawn/join test in the posix code was redundant, just dropped
that one.
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Because these lists are very long in several cases and quite
varied, I opted to place them in the existing c/foo.zig files.
There are many other sets of network-related constants like this
to add over time across all the OSes. For now I picked these
because I needed a few constants from each of these namespaces for
my own project, so I tried to flesh out these namespaces
completely as best I could, at least for basic sockopt purposes.
Note windows has some of these already defined in ws2_32 as
individual constants rather than contained in a namespacing
struct. I'm not sure what to do with that in the long run (break
it and namespace them?), but this doesn't change the status quo
for windows in any case.
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