This patch adds 4 macros in the `netinet/in.h` header, as specified by POSIX standards.
This patch refactors the logic to define each component of the `math_errhandling` macro. It assumes that math error handling is supported by the target and the C library unless otherwise disabled in the preprocessor logic. In addition to the refactoring, the support for error handling via exceptions is explicitly disabled for Arm targets with no FPU, that is, where `__ARM_FP` is not defined. This is because LLVM libc does not provide a floating-point environment for Arm no-FP configurations (or at least one with support for FP exceptions).
Implements chown and getgid per the POSIX specification and adds corresponding unit tests. getgid is added as it is required by the chown unit tests. This PR will address #165785 Co-authored-by: shubh@DOE <shubhp@mbm3a24.local>
`<wchar.h>` should at least include the forward declaration of `struct tm`, since it's needed for the `wcsftime` declaration (also, see https://man7.org/linux/man-pages/man0/wchar.h.0p.html). Even though we don't yet have `wcsftime`, some downstream users (notably - libcxx) expects to see `struct tm` declaration there, to re-declare it under `std` namespace: https://github.com/llvm/llvm-project/blob/c46bfed1a484d30cd251a9a225649d74e3bf0af5/libcxx/include/cwchar#L135 So, add this type declaration to llvm-libc version of `wchar.h` now.
We need `<stdbool.h>` to support having "bool" members inside pthread structs that may get included through `<pthread.h>` from C code prior to C23.
This makes the sorting behavior more uniform: functions and macros are always sorted (separately), not only when merging. This changes the sort order used for functions and other things sorted by their symbol names. Symbols are sorted alphabetically without regard to leading underscores, and then for identifiers that differ only in the number of leading underscores, the fewer underscores the earlier in the sort order. For the functions declared in a generated header, adjacent names with and without underscores will be grouped together without blank lines. This is implemented by factoring the name field, equality, and sorting support out of the various entity classes into a new common superclass (hdrgen.Symbol). This uncovered YAML's requirement to quote the string "NULL" to avoid pyyaml parsing it as None (equivalent to Javascript null) rather than a string.
Fixes https://github.com/llvm/llvm-project/issues/129361 @michaelrj-google @PiJoules --------- Signed-off-by: Shreeyash Pandey <shreeyash335@gmail.com> Co-authored-by: Michael Jones <michaelrj@google.com>
RFC https://discourse.llvm.org/t/rfc-bounds-checking-interfaces-for-llvm-libc/87685 Add internal support macros required by Annex K interface in LLVM libc.
* Add FILE type declaration, as it should be presented in `<wchar.h>`, as well as in `<stdio.h>` * Fix argument type in `wcsrtombs` / `wcsnrtombs` function - it should be restrict pointer to `mbstate_t`. Add restrict qualifier to internal implementation as well. This brings us closer to being able to build libcxx with wide-character support against llvm-libc headers.