Commit aa34642f authored by Namhyung Kim's avatar Namhyung Kim
Browse files

tools headers: Sync linux/cfi_types.h with the kernel source 



To pick up the changes in this cset:

  5ccaeedb cfi: add C CFI type macro

This addresses these perf build warnings:

  Warning: Kernel ABI header differences:
    diff -u tools/include/linux/cfi_types.h include/linux/cfi_types.h

Please see tools/include/uapi/README for further details.

Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
parent 6cb86079

tools/include/linux/cfi_types.h

+23 −0
Original line number Diff line number Diff line
@@ -41,5 +41,28 @@ 
	SYM_TYPED_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)

#endif



#else /* __ASSEMBLY__ */



#ifdef CONFIG_CFI_CLANG

#define DEFINE_CFI_TYPE(name, func)						\

	/*									\

	 * Force a reference to the function so the compiler generates		\

	 * __kcfi_typeid_<func>.						\

	 */									\

	__ADDRESSABLE(func);							\

	/* u32 name __ro_after_init = __kcfi_typeid_<func> */			\

	extern u32 name;							\

	asm (									\

	"	.pushsection	.data..ro_after_init,\"aw\",\%progbits	\n"	\

	"	.type	" #name ",\%object				\n"	\

	"	.globl	" #name "					\n"	\

	"	.p2align	2, 0x0					\n"	\

	#name ":							\n"	\

	"	.4byte	__kcfi_typeid_" #func "				\n"	\

	"	.size	" #name ", 4					\n"	\

	"	.popsection						\n"	\

	);

#endif



#endif /* __ASSEMBLY__ */

#endif /* _LINUX_CFI_TYPES_H */