diff options
Diffstat (limited to 'arch/arm/lib/lib1funcs.S')
| -rw-r--r-- | arch/arm/lib/lib1funcs.S | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm/lib/lib1funcs.S b/arch/arm/lib/lib1funcs.S index de15d09e36..a1f44d9454 100644 --- a/arch/arm/lib/lib1funcs.S +++ b/arch/arm/lib/lib1funcs.S @@ -419,4 +419,21 @@ ENTRY(__gnu_thumb1_case_uhi) ret lr ENDPROC(__gnu_thumb1_case_uhi) .popsection + +/* Taken and adapted from: https://github.com/gcc-mirror/gcc/blob/4f181f9c7ee3efc509d185fdfda33be9018f1611/libgcc/config/arm/lib1funcs.S#L2156 */ +.pushsection .text.__gnu_thumb1_case_si, "ax" +ENTRY(__gnu_thumb1_case_si) + push {r0, r1} + mov r1, lr + adds r1, r1, #2 /* Align to word. */ + lsrs r1, r1, #2 + lsls r0, r0, #2 + lsls r1, r1, #2 + ldr r0, [r1, r0] + adds r0, r0, r1 + mov lr, r0 + pop {r0, r1} + mov pc, lr /* We know we were called from thumb code. */ +ENDPROC(__gnu_thumb1_case_si) +.popsection #endif |