Following discussion from https://discourse.llvm.org/t/missing-declarations-in-header-files/86678, we decided to add a flag to output all headers. Requires #144049. - Allows outputting all headers - Minor whitespace change for alignment --------- Co-authored-by: Michael Jones <michaelrj@google.com>
This is the first step in preparation for: https://discourse.llvm.org/t/rfc-make-clang-builtin-math-functions-constexpr-with-llvm-libc-to-support-c-23-constexpr-math-functions/86450
These are no longer meant to be defined in each framework-specific header, but ZxTest.h wasn't updated.
Also use ErrnoSetterMatcher to verify the function return values and verify/clear out errno values. Fix the bug in ErrnoSetterMatcher error reporting machinery to properly convert errno values into errno names to make error messages easier to debug.
Use ErrnoCheckingTest harness added in d039af33096c0a83b03475a240d5e281e2271c44 for all unistd tests that verify errno values. Stop explicitly setting it to zero in test code, as harness does it. It also verifies that the errno is zero at the end of each test case, so update the ASSERT_ERRNO_EQ and ASSERT_ERRNO_FAILURE macro to clear out its value after the verification (similar to how ErrnoSetterMatcher does). Update the CMake and Bazel rules for those tests. In the latter case, remove commented out tests that are currently unsupported in Bazel, since they get stale quickly.
See the discussion in PR https://github.com/llvm/llvm-project/pull/131650 on why we need to clear the errno at the beginning of some tests, and outlining the various solutions. Introduce ErrnoCheckingTest base class and use it for unlink_test as an example.
Relates to https://github.com/llvm/llvm-project/issues/119281#issuecomment-2699470459
This reverts commit 1e6e845d49a336e9da7ca6c576ec45c0b419b5f6 because it changed the 1st parameter of adjust() to be unsigned, but libc itself calls adjust() with a negative argument in align_backward() in op_generic.h.
Relates to: #119281
Fixes #113359 --------- Signed-off-by: krishna2803 <kpandey81930@gmail.com>