Add linker symbols and KEEPs for .gnu.linkonce.dyndbg and .gnu.linkonce.dyndbg_sites sections, placing them in front of their respective dyndbg and dyndbg_sites sections. This placement gives us a known relative offset (ie -1) from the start of the vector to the header, letting us use container_of to get it. The _index added previously allows determining &descs[0] from any desc[N]. The .gnu.linkonce. collapses possible multiple declarations into a single allocation, with a single address. todo: will need similar for modules.lds.h Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx> --- include/asm-generic/vmlinux.lds.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 1e7ee65e8591..20fdea9efd78 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -348,9 +348,13 @@ __start___dyndbg_classes = .; \ KEEP(*(__dyndbg_classes)) \ __stop___dyndbg_classes = .; \ + __dyndbg_header = .; \ + KEEP(*(.gnu.linkonce.dyndbg)) \ __start___dyndbg = .; \ KEEP(*(__dyndbg)) \ __stop___dyndbg = .; \ + __dyndbg_site_header = .; \ + KEEP(*(.gnu.linkonce.dyndbg_sites)) \ __start___dyndbg_sites = .; \ KEEP(*(__dyndbg_sites)) \ __stop___dyndbg_sites = .; \ -- 2.37.2
