jyknight wrote: The intent of this standards change is that everyone should be able to depend on library functions from string.h, no matter how minimal or bare-metal their environment.
The requirement is now: - <float.h>, <iso646.h>, <limits.h>, <stdalign.h>, <stdarg.h>, <stdbit.h>, <stdbool.h>, <stddef.h>, <stdint.h>, and <stdnoreturn.h>. - <string.h>, except strcoll, strdup, strerror, strndup, strtok, strxfrm - memalignment from <stdlib.h> Clang provides most of the required functionality already, other than stdbit.h, string.h, and stdlib.h. (assuming the freestanding versions the other headers are compliant, which I haven't verified). The standard doesn't specify compiler command-line-options, and -ffreestanding has an existing meaning which doesn't involve pulling in library code, so possibly we shouldn't modify that flag's behavior. But, what I would like is that we _somehow_ make it trivial for users to get an implementation of the required functionality without requiring an externally-provided libc. Some way for users to trivially build and link against implementations of those functions for their minimal target, without depending on anything else. https://github.com/llvm/llvm-project/pull/132232 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
