diff options
| author | Marek Vasut | 2016-05-26 18:01:39 +0200 |
|---|---|---|
| committer | Tom Rini | 2016-06-02 21:21:44 -0400 |
| commit | 06b36cb7752f64232e15a53864a97861de0aab7f (patch) | |
| tree | 736684669116109867c1288559c74b06bc9a11a8 /arch/arm/lib/lshrdi3.S | |
| parent | 11b1a9b2c0fecb7334ccb23f29200da0be0cc156 (diff) | |
arm: lib: Sync libgcc shift operations
Sync the libgcc shift operations with Linux kernel 4.4.6 , commit
0d1912303e54ed1b2a371be0bba51c384dd57326 . Syncing these three
files is easy, as there is almost no change in them, except the
addition of Thumb support.
This patch also defines CONFIG_THUMB2_KERNEL and CONFIG_ARM_ASM_UNIFIED
which is necessary for correct build of these files both in ARM and
Thumb mode, just like Linux does.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm/lib/lshrdi3.S')
| -rw-r--r-- | arch/arm/lib/lshrdi3.S | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/arm/lib/lshrdi3.S b/arch/arm/lib/lshrdi3.S index 1f9b9164649..9c51141f752 100644 --- a/arch/arm/lib/lshrdi3.S +++ b/arch/arm/lib/lshrdi3.S @@ -5,6 +5,7 @@ */ #include <linux/linkage.h> +#include <asm/assembler.h> #ifdef __ARMEB__ #define al r1 @@ -14,15 +15,18 @@ #define ah r1 #endif -.globl __lshrdi3 -__lshrdi3: +ENTRY(__lshrdi3) ENTRY(__aeabi_llsr) subs r3, r2, #32 rsb ip, r2, #32 movmi al, al, lsr r2 movpl al, ah, lsr r3 - orrmi al, al, ah, lsl ip + ARM( orrmi al, al, ah, lsl ip ) + THUMB( lslmi r3, ah, ip ) + THUMB( orrmi al, al, r3 ) mov ah, ah, lsr r2 - mov pc, lr + ret lr + +ENDPROC(__lshrdi3) ENDPROC(__aeabi_llsr) |