objtool/klp: Add test for vmlinux relocs in a patched module

The kernel refuses a module-targeted klp relocation which names a vmlinux
symbol.  An EXPORT_SYMBOL_FOR_MODULES() symbol needs a klp relocation, so
patching a module function that references one only loads if klp diff files
that relocation under vmlinux rather than under the patched module.

This fails at load, not at build: klp-build produces a module and static
checks of it find nothing wrong.  Hence the assertion on which object the
relocation is filed against.

Reported by Dylan Hatch, whose mod-ns-lp branch carries the kernel-side
half of this case.

Co-developed-by: Dylan Hatch <dylanbhatch@google.com>
Signed-off-by: Dylan Hatch <dylanbhatch@google.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Assisted-by: Claude:claude-opus-5
Link: https://patch.msgid.link/20260916184351.2720310-30-song@kernel.org

0 files changed, 0 insertions, 0 deletions