Hi Nick, On Fri, 2021-02-05 at 12:22 -0800, Nick Desaulniers wrote: > 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.
I don't think that will be necessary. .debug_sup is for Dwarf Supplemental file producers like dwz. Those would run after the linker. > Cc: sta...@vger.kernel.org > Link: https://bugzilla.redhat.com/show_bug.cgi?id=1922707 > Reported-by: Chris Murphy <li...@colorremedies.com> > Suggested-by: Fangrui Song <mask...@google.com> > Reviewed-by: Nathan Chancellor <nat...@kernel.org> > Tested-by: Sedat Dilek <sedat.di...@gmail.com> > Signed-off-by: Nick Desaulniers <ndesaulni...@google.com> > --- > include/asm-generic/vmlinux.lds.h | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/include/asm-generic/vmlinux.lds.h > b/include/asm-generic/vmlinux.lds.h > index 34b7e0d2346c..1e7cde4bd3f9 100644 > --- a/include/asm-generic/vmlinux.lds.h > +++ b/include/asm-generic/vmlinux.lds.h > @@ -842,8 +842,13 @@ > /* 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 \ Looks good to me. Cheers, Mark
