From: Nick Desaulniers ndesaulniers@google.com
commit 3c4fa46b30c551b1df2fb1574a684f68bc22067c 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: Chris Murphy lists@colorremedies.com Suggested-by: Fangrui Song maskray@google.com Reviewed-by: Nathan Chancellor nathan@kernel.org Reviewed-by: Mark Wielaard mark@klomp.org Tested-by: Sedat Dilek sedat.dilek@gmail.com Signed-off-by: Nick Desaulniers ndesaulniers@google.com Signed-off-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- include/asm-generic/vmlinux.lds.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
--- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -756,8 +756,13 @@ /* 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 \