Author: Jon Roelofs Date: 2020-05-26T15:42:32-06:00 New Revision: 1e06b169be3e59799b8dcaf16d1d03bd4c12da42
URL: https://github.com/llvm/llvm-project/commit/1e06b169be3e59799b8dcaf16d1d03bd4c12da42 DIFF: https://github.com/llvm/llvm-project/commit/1e06b169be3e59799b8dcaf16d1d03bd4c12da42.diff LOG: [clang][docs] Document additional bits of libc that -ffreestanding envs must provide Differential Revision: https://reviews.llvm.org/D80436 Added: Modified: clang/docs/CommandGuide/clang.rst Removed: ################################################################################ diff --git a/clang/docs/CommandGuide/clang.rst b/clang/docs/CommandGuide/clang.rst index 6947450beb43..de0e0eda9097 100644 --- a/clang/docs/CommandGuide/clang.rst +++ b/clang/docs/CommandGuide/clang.rst @@ -246,7 +246,9 @@ Language Selection and Mode Options .. option:: -ffreestanding Indicate that the file should be compiled for a freestanding, not a hosted, - environment. + environment. Note that it is assumed that a freestanding environment will + additionally provide `memcpy`, `memmove`, `memset` and `memcmp` + implementations, as these are needed for efficient codegen for many programs. .. option:: -fno-builtin _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
