From a0a12c3ed057af57552bf6c0aeaca6835693df04 Mon Sep 17 00:00:00 2001 From: Nick Desaulniers Date: Fri, 19 Aug 2022 12:06:40 -0700 Subject: asm goto: eradicate CC_HAS_ASM_GOTO GCC has supported asm goto since 4.5, and Clang has since version 9.0.0. The minimum supported versions of these tools for the build according to Documentation/process/changes.rst are 5.1 and 11.0.0 respectively. Remove the feature detection script, Kconfig option, and clean up some fallback code that is no longer supported. The removed script was also testing for a GCC specific bug that was fixed in the 4.7 release. Also remove workarounds for bpftrace using clang older than 9.0.0, since other BPF backend fixes are required at this point. Link: https://lore.kernel.org/lkml/CAK7LNATSr=BXKfkdW8f-H5VT_w=xBpT2ZQcZ7rm6JfkdE+QnmA@mail.gmail.com/ Link: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48637 Acked-by: Borislav Petkov Suggested-by: Masahiro Yamada Suggested-by: Alexei Starovoitov Signed-off-by: Nick Desaulniers Reviewed-by: Ingo Molnar Reviewed-by: Nathan Chancellor Reviewed-by: Alexandre Belloni Signed-off-by: Linus Torvalds --- Documentation/kbuild/kconfig-language.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation/kbuild/kconfig-language.rst') diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst index 7fb398649f51..858ed5d80def 100644 --- a/Documentation/kbuild/kconfig-language.rst +++ b/Documentation/kbuild/kconfig-language.rst @@ -525,8 +525,8 @@ followed by a test macro:: If you need to expose a compiler capability to makefiles and/or C source files, `CC_HAS_` is the recommended prefix for the config option:: - config CC_HAS_ASM_GOTO - def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC)) + config CC_HAS_FOO + def_bool $(success,$(srctree)/scripts/cc-check-foo.sh $(CC)) Build as module only ~~~~~~~~~~~~~~~~~~~~ -- cgit v1.2.3-73-gaa49b