This patch adds some hdrgen yaml for ioctl(). Otherwise the function
never actually ends up being available in a full build. This is the last
thing that is needed to enable turning on LIBCXX_ENABLE_RANDOM_DEVICE.
This removes an extraneous ',' in the generated dlfcn header.
This also adds `__restrict` to `dladdr`'s declaration per POSIX. Another
fix is made: the C standard `restrict` keyword is removed from
dlinfo.cpp/dlinfo.h (but note that dlfcn.yaml still annotates
`__restrict` for dlinfo's decl).
A initial commit for #97929, this adds a stub implementation for
`dladdr` and includes the definition for the `DL_info` type used as one
of its arguments.
While the `dladdr` implementation relies on dynamic linker support, this
patch will add its prototype in the generated `dlfcn.h` header so that
it can be used by downstream platforms that have their own `dladdr`
implementation.
An initial commit for #149911, this adds a stub implementation for
dlinfo and the enums list of `RTLD_DI_*` values.
While the dlinfo implementation relies on dynamic linker support, this
patch will add its prototype in the generated dlfcn.h header so that it
can be used by downstream platforms that have their own dlinfo
implementation.
Implemented barrier synchronization for pthreads
- Uses condition variables internally for platform independence
(platform-specific work is handled by the condition variable
implementation)
- Does NOT currently handle barrierattr pshared, this is a goal for a
future patch
Reverts llvm/llvm-project#146226
The MPFR test uses `mpfr_asinpi` which requires MPFR 4.2.0 or later, but
the Buildbots are running an older version of MPFR.
See https://lab.llvm.org/buildbot/#/builders/104/builds/27743 for
example.
I said I was going to revert the PR until we have a workaround for older
versions of MPFR, but then I forgot and I just disabled the entrypoints
which doesn't fix the Buildbot builds.
The function is implemented using the following Taylor series that's
generated using [python-sympy](https://www.sympy.org/en/index.html), and
it is very accurate for |x| $$\in [0, 0.5]$$ and has been verified using
Geogebra. The range reduction is used for the rest range (0.5, 1].
$$
\frac{\arcsin(x)}{\pi} \approx
\begin{aligned}[t]
& 0.318309886183791x \\
& + 0.0530516476972984x^3 \\
& + 0.0238732414637843x^5 \\
& + 0.0142102627760621x^7 \\
& + 0.00967087327815336x^9 \\
& + 0.00712127941391293x^{11} \\
& + 0.00552355646848375x^{13} \\
& + 0.00444514782463692x^{15} \\
& + 0.00367705242846804x^{17} \\
& + 0.00310721681820837x^{19} + O(x^{21})
\end{aligned}
$$
## Geogebra graph
Closes#132210
Implemented an internal multi-byte to wide character string conversion
function, public functions, and tests
---------
Co-authored-by: Sriya Pratipati <sriyap@google.com>
When trying to use <setjmp.h>, it will try to include
llvm-libc-types/sigjmp_buf.h due to the way that headergen works. This
commit creates a dummy file, as the real implementation is found in
llvm-libc-types/jmp_buf.h.
Remove all the .h.def files that already express nothing
whatsoever not already expressed in YAML. Clean up a few YAML
files without materially changing any generated header output.
Many more .h.def files remain that need a bit of conversion in
YAML to express macro requirements and such.
1. WEOF is defined as a `wint_t` by the C standard. On certain
architectures, the test won't compile on `-Wall`. This fixes it.
2. If `testSubnormalRange` fails, it will spit out way too many error
messages, which overwhelms my test environment. I reduce this to 1k for
now.
This is required for #145349
Fixes a couple of bugs found when building. The PR to enable the headers
can be found here: #144114.
- math.yaml: float128 guard
- wchar.yaml: __restrict keyword order
