Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c48be43e authored by Markos Chandras's avatar Markos Chandras Committed by Ralf Baechle
Browse files

MIPS: lib: strnlen_user: Use macro to build the strnlen_user symbol 



Build the __strnlen_user symbol using a macro. In EVA mode we will
need to use similar code to do the userspace load operations so
it is better if we use a macro to avoid code duplications.

Signed-off-by: default avatarMarkos Chandras <markos.chandras@imgtec.com>
parent 078dde5e

arch/mips/lib/strnlen_user.S

+10 −6
Original line number Diff line number Diff line
@@ -25,22 +25,26 @@ 
 *	 bytes.	 There's nothing secret there.	On 64-bit accessing beyond

 *	 the maximum is a tad hairier ...

 */

LEAF(__strnlen_user_asm)

	.macro __BUILD_STRNLEN_ASM func

LEAF(__strnlen_\func\()_asm)

	LONG_L		v0, TI_ADDR_LIMIT($28)	# pointer ok?

	and		v0, a0

	bnez		v0, .Lfault

	bnez		v0, .Lfault\@



FEXPORT(__strnlen_user_nocheck_asm)

FEXPORT(__strnlen_\func\()_nocheck_asm)

	move		v0, a0

	PTR_ADDU	a1, a0			# stop pointer

1:	beq		v0, a1, 1f		# limit reached?

	EX(lb, t0, (v0), .Lfault)

	EX(lb, t0, (v0), .Lfault\@)

	PTR_ADDIU	v0, 1

	bnez		t0, 1b

1:	PTR_SUBU	v0, a0

	jr		ra

	END(__strnlen_user_asm)

	END(__strnlen_\func\()_asm)



.Lfault:

.Lfault\@:

	move		v0, zero

	jr		ra

	.endm



__BUILD_STRNLEN_ASM user