Commit 3c4fa46b authored by Nick Desaulniers's avatar Nick Desaulniers Committed by Masahiro Yamada
Browse files

vmlinux.lds.h: add DWARF v5 sections 

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>
parent 1c3fae74

include/asm-generic/vmlinux.lds.h

+6 −1
Original line number Diff line number Diff line
@@ -828,8 +828,13 @@ 
		/* 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							\