Commit 4eb9d709 authored by Nick Desaulniers's avatar Nick Desaulniers Committed by Greg Kroah-Hartman
Browse files

vmlinux.lds.h: add DWARF v5 sections 

commit 3c4fa46b upstream.

We expect toolchains to produce these new debug info sections as part of
DWARF v5. Add explicit placements to prevent the linker warnings from
--orphan-section=warn.

Compilers may produce such sections with explicit -gdwarf-5, or based on
the implicit default version of DWARF when -g is used via DEBUG_INFO.
This implicit default changes over time, and has changed to DWARF v5
with GCC 11.

.debug_sup was mentioned in review, but without compilers producing it
today, let's wait to add it until it becomes necessary.

Cc: stable@vger.kernel.org
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1922707


Reported-by: default avatarChris Murphy <lists@colorremedies.com>
Suggested-by: default avatarFangrui Song <maskray@google.com>
Reviewed-by: default avatarNathan Chancellor <nathan@kernel.org>
Reviewed-by: default avatarMark Wielaard <mark@klomp.org>
Tested-by: default avatarSedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: default avatarNick Desaulniers <ndesaulniers@google.com>
Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d38b9727

include/asm-generic/vmlinux.lds.h

+6 −1
Original line number Diff line number Diff line
@@ -669,8 +669,13 @@ 
		/* DWARF 4 */						\

		.debug_types	0 : { *(.debug_types) }			\

		/* DWARF 5 */						\

		.debug_addr	0 : { *(.debug_addr) }			\

		.debug_line_str	0 : { *(.debug_line_str) }		\

		.debug_loclists	0 : { *(.debug_loclists) }		\

		.debug_macro	0 : { *(.debug_macro) }			\

		.debug_addr	0 : { *(.debug_addr) }

		.debug_names	0 : { *(.debug_names) }			\

		.debug_rnglists	0 : { *(.debug_rnglists) }		\

		.debug_str_offsets	0 : { *(.debug_str_offsets) }



		/* Stabs debugging sections.  */

#define STABS_DEBUG							\