The current annotation relies on not running objtool on the file; this
won't work when running objtool on vmlinux.o. Instead explicitly mark
__efi64_thunk() to be ignored.
This preserves the status quo, which is somewhat unfortunate. Luckily
this code is hardly ever used.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20220308154317.402118218@infradead.org
# SPDX-License-Identifier: GPL-2.0
-OBJECT_FILES_NON_STANDARD_efi_thunk_$(BITS).o := y
KASAN_SANITIZE := n
GCOV_PROFILE := n
*/
#include <linux/linkage.h>
+#include <linux/objtool.h>
#include <asm/page_types.h>
#include <asm/segment.h>
.text
.code64
-SYM_CODE_START(__efi64_thunk)
+SYM_FUNC_START(__efi64_thunk)
+STACK_FRAME_NON_STANDARD __efi64_thunk
push %rbp
push %rbx
2: pushl $__KERNEL_CS
pushl %ebp
lret
-SYM_CODE_END(__efi64_thunk)
+SYM_FUNC_END(__efi64_thunk)
.bss
.balign 8