Hi Mark,
On Mon, Apr 13, 2026 at 5:35 PM Mark Wielaard <[email protected]> wrote:
>
> dwarf_begin_elf tries to guess what type of Dwarf we have. When it
> sees a .debug_dwp section it assumed it was TYPE_PLAIN instead of
> TYPE_DWO and would try to find more "plain" .debug sections (ignoring
> other .dwo sections). This would cause it to not detect any debug
> sections in a .dwp file containing a .debug_dwp section.
>
> * libdw/dwarf_begin_elf.c (scn_dwarf_type): Recognize
> .debug_dwp or .zdebug_dwp sections.
>
> Signed-off-by: Mark Wielaard <[email protected]>
LGTM.
Aaron
> ---
> libdw/dwarf_begin_elf.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/libdw/dwarf_begin_elf.c b/libdw/dwarf_begin_elf.c
> index dd30f79b34a4..7b58ad2e2218 100644
> --- a/libdw/dwarf_begin_elf.c
> +++ b/libdw/dwarf_begin_elf.c
> @@ -115,8 +115,10 @@ scn_dwarf_type (Dwarf *result, size_t shstrndx, Elf_Scn
> *scn)
> return TYPE_GNU_LTO;
> else if (strcmp (scnname, ".debug_cu_index") == 0
> || strcmp (scnname, ".debug_tu_index") == 0
> + || strcmp (scnname, ".debug_dwp") == 0
> || strcmp (scnname, ".zdebug_cu_index") == 0
> - || strcmp (scnname, ".zdebug_tu_index") == 0)
> + || strcmp (scnname, ".zdebug_tu_index") == 0
> + || strcmp (scnname, ".zdebug_dwp") == 0)
> return TYPE_DWO;
> else if (startswith (scnname, ".debug_") || startswith (scnname,
> ".zdebug_"))
> {
> --
> 2.53.0
>
