> -----Original Message----- > From: linux-hexagon-ow...@vger.kernel.org <linux-hexagon- > ow...@vger.kernel.org> On Behalf Of Nick Desaulniers ... > On Tue, May 26, 2020 at 8:30 AM Guenter Roeck <li...@roeck-us.net> wrote: > > > > On Mon, May 11, 2020 at 09:41:37PM +0100, Will Deacon wrote: > > > It is very rare to see versions of GCC prior to 4.8 being used to > > > build the mainline kernel. These old compilers are also known to > > > have codegen issues which can lead to silent miscompilation: > > > > > > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145 > > > > > > Raise the minimum GCC version to 4.8 for building the kernel and > > > remove some tautological Kconfig dependencies as a consequence. > > > > My hexagon compiler is v4.6.1, and I have been unable to find a more > > recent version. Does anyone happen to have a pointer to a hexagon > > toolchain with gcc 4.8 or later ? > > IIUC, hexagon moved to LLVM, though that target still has issues building the > kernel. > https://github.com/ClangBuiltLinux/linux/issues?q=is%3Aopen+is%3Aissue+lab > el%3A%22%5BARCH%5D+hexagon%22
Indeed, we did move to llvm. The build works with the clang_rt-builtins lib. But that issue indicates that it's an unnecessary wart to require that. From what I understand, other arches contribute these builtins content to the kernel build, so we'll do the same. I'll prioritize this update. -Brian
