Am Montag, 27. März 2023, 18:49:39 CEST schrieb Andy Chiu: > Some extensions use .option arch directive to selectively enable certain > extensions in parts of its assembly code. For example, Zbb uses it to > inform assmebler to emit bit manipulation instructions. However, > supporting of this directive only exist on GNU assembler and has not > landed on clang at the moment, making TOOLCHAIN_HAS_ZBB depend on > AS_IS_GNU. > > While it is still under review at https://reviews.llvm.org/D123515, the > upcoming Vector patch also requires this feature in assembler. Thus, > provide Kconfig AS_HAS_OPTION_ARCH to detect such feature. Then > TOOLCHAIN_HAS_XXX will be turned on automatically when the feature land. > > Suggested-by: Nathan Chancellor <nathan@xxxxxxxxxx> > Signed-off-by: Andy Chiu <andy.chiu@xxxxxxxxxx> > Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> > Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx> Reviewed-by: Heiko Stuebner <heiko.stuebner@xxxxxxxx> Tested-by: Heiko Stuebner <heiko.stuebner@xxxxxxxx>
