diff options
Diffstat (limited to 'arch/xtensa/lib/strncpy_user.S')
| -rw-r--r-- | arch/xtensa/lib/strncpy_user.S | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/arch/xtensa/lib/strncpy_user.S b/arch/xtensa/lib/strncpy_user.S index a834057bda6b..b2655d94558d 100644 --- a/arch/xtensa/lib/strncpy_user.S +++ b/arch/xtensa/lib/strncpy_user.S @@ -25,18 +25,18 @@ /* * char *__strncpy_user(char *dst, const char *src, size_t len) */ -.text -.begin literal -.align 4 -.Lmask0: - .byte 0xff, 0x00, 0x00, 0x00 -.Lmask1: - .byte 0x00, 0xff, 0x00, 0x00 -.Lmask2: - .byte 0x00, 0x00, 0xff, 0x00 -.Lmask3: - .byte 0x00, 0x00, 0x00, 0xff -.end literal + +#ifdef __XTENSA_EB__ +# define MASK0 0xff000000 +# define MASK1 0x00ff0000 +# define MASK2 0x0000ff00 +# define MASK3 0x000000ff +#else +# define MASK0 0x000000ff +# define MASK1 0x0000ff00 +# define MASK2 0x00ff0000 +# define MASK3 0xff000000 +#endif # Register use # a0/ return address @@ -53,6 +53,7 @@ # a11/ dst # a12/ tmp +.text .align 4 .global __strncpy_user .type __strncpy_user,@function @@ -61,10 +62,10 @@ __strncpy_user: # a2/ dst, a3/ src, a4/ len mov a11, a2 # leave dst in return value register beqz a4, .Lret # if len is zero - l32r a5, .Lmask0 # mask for byte 0 - l32r a6, .Lmask1 # mask for byte 1 - l32r a7, .Lmask2 # mask for byte 2 - l32r a8, .Lmask3 # mask for byte 3 + movi a5, MASK0 # mask for byte 0 + movi a6, MASK1 # mask for byte 1 + movi a7, MASK2 # mask for byte 2 + movi a8, MASK3 # mask for byte 3 bbsi.l a3, 0, .Lsrc1mod2 # if only 8-bit aligned bbsi.l a3, 1, .Lsrc2mod4 # if only 16-bit aligned .Lsrcaligned: # return here when src is word-aligned |