diff options
Diffstat (limited to 'arch/arm/lib/div64.S')
| -rw-r--r-- | arch/arm/lib/div64.S | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/arm/lib/div64.S b/arch/arm/lib/div64.S index 58eef660762..e55c4842c29 100644 --- a/arch/arm/lib/div64.S +++ b/arch/arm/lib/div64.S @@ -13,6 +13,7 @@ */ #include <linux/linkage.h> +#include <asm/unwind.h> #ifdef __ARMEB__ #define xh r0 @@ -44,6 +45,7 @@ */ ENTRY(__do_div64) +UNWIND(.fnstart) @ Test for easy paths first. subs ip, r4, #1 @@ -177,7 +179,9 @@ ENTRY(__do_div64) mov yh, xh, lsr ip mov yl, xl, lsr ip rsb ip, ip, #32 - orr yl, yl, xh, lsl ip + ARM( orr yl, yl, xh, lsl ip ) + THUMB( lsl xh, xh, ip ) + THUMB( orr yl, yl, xh ) mov xh, xl, lsl ip mov xh, xh, lsr ip mov pc, lr @@ -187,7 +191,12 @@ ENTRY(__do_div64) moveq yh, xh moveq xh, #0 moveq pc, lr +UNWIND(.fnend) +UNWIND(.fnstart) +UNWIND(.pad #4) +UNWIND(.save {lr}) +Ldiv0_64: @ Division by 0: str lr, [sp, #-8]! bl __div0 @@ -198,3 +207,5 @@ ENTRY(__do_div64) mov xh, #0 ldr pc, [sp], #8 +UNWIND(.fnend) +ENDPROC(__do_div64) |