Date: Tue, 13 Feb 2024 22:53:42 GMT From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 53fba3b984ac - main - build: Default to DWARF4 in the kernel Message-ID: <202402132253.41DMrgIh059708@gitrepo.freebsd.org>
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The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=53fba3b984aca0dc5d34b84d0e21f0d4d121b56f commit 53fba3b984aca0dc5d34b84d0e21f0d4d121b56f Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2024-02-11 18:03:23 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2024-02-13 22:51:09 +0000 build: Default to DWARF4 in the kernel gcc 12 defaults to emitting DWARF 5, but this is not yet supported by our libdwarf and thus by ctfconvert. Reviewed by: emaste, imp MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D43837 --- sys/conf/kern.mk | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk index 08779b4da193..53781927dee8 100644 --- a/sys/conf/kern.mk +++ b/sys/conf/kern.mk @@ -256,6 +256,14 @@ CFLAGS+= -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clan .endif .endif +# +# Some newer toolchains default to DWARF 5, which isn't supported by some build +# tools yet. +# +.if (${CFLAGS:M-g} != "" || ${CFLAGS:M-g[0-3]} != "") && ${CFLAGS:M-gdwarf*} == "" +CFLAGS+= -gdwarf-4 +.endif + CFLAGS+= ${CWARNFLAGS:M*} ${CWARNFLAGS.${.IMPSRC:T}} CFLAGS+= ${CWARNFLAGS.${COMPILER_TYPE}} CFLAGS+= ${CFLAGS.${COMPILER_TYPE}} ${CFLAGS.${.IMPSRC:T}}
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