git: f4d93b67611f - main - Fix arm64 build after llvm 18.1.3 upgrade
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Date: Sun, 07 Apr 2024 00:08:41 UTC
The branch main has been updated by dim: URL: https://cgit.FreeBSD.org/src/commit/?id=f4d93b67611f6f8b19db7bac6b0973b2ef0cfcb6 commit f4d93b67611f6f8b19db7bac6b0973b2ef0cfcb6 Author: Dimitry Andric <dim@FreeBSD.org> AuthorDate: 2024-04-07 00:07:38 +0000 Commit: Dimitry Andric <dim@FreeBSD.org> CommitDate: 2024-04-07 00:07:38 +0000 Fix arm64 build after llvm 18.1.3 upgrade Apparently clang 18 has become more strict about using floating point registers in inline assembly when -mgeneral-regs-only is used. This causes sys/arm64/arm64/vfp.c to fail to compile, with "error: instruction requires: fp-armv8", and "error: expected readable system register". To fix it, similar to other files compiled for arm64, disable -mgeneral-regs-only for this particular file. PR: 276104 MFC after: 1 month --- sys/conf/files.arm64 | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64 index 293a0ae1c0f9..0dd097eb3e0d 100644 --- a/sys/conf/files.arm64 +++ b/sys/conf/files.arm64 @@ -82,7 +82,8 @@ arm64/arm64/uma_machdep.c standard arm64/arm64/undefined.c standard arm64/arm64/unwind.c optional ddb | kdtrace_hooks | stack \ compile-with "${NORMAL_C:N-fsanitize*:N-fno-sanitize*}" -arm64/arm64/vfp.c standard +arm64/arm64/vfp.c standard \ + compile-with "${NORMAL_C:N-mgeneral-regs-only}" arm64/arm64/vm_machdep.c standard arm64/coresight/coresight.c standard