| // REQUIRES: arm |
| // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv5-none-linux-gnueabi %s -o %t |
| // RUN: ld.lld %t -o %t2 |
| // RUN: llvm-objdump -d %t2 --triple=armv5-none-linux-gnueabi | FileCheck %s |
| // RUN: ld.lld %t -o %t3 --shared |
| // RUN: llvm-objdump -d %t3 --triple=armv5-none-linux-gnueabi | FileCheck --check-prefix=CHECK-PI %s |
| |
| // Test ARM Thumb Interworking on older Arm architectures using Thunks that do |
| // not use MOVT/MOVW instructions. |
| // For pure interworking (not considering range extension) there is only the |
| // case of an Arm B to a Thumb Symbol to consider as in older Arm architectures |
| // there is no Thumb B.w that we can intercept with a Thunk and we still assume |
| // support for the blx instruction for Thumb BL and BLX to an Arm symbol. |
| .arm |
| .text |
| .syntax unified |
| .cpu arm10tdmi |
| |
| .text |
| .globl _start |
| .type _start, %function |
| .balign 0x1000 |
| _start: |
| b thumb_func |
| bl thumb_func |
| blx thumb_func |
| bx lr |
| |
| // CHECK: <_start>: |
| // CHECK-NEXT: 21000: 03 00 00 ea b 0x21014 <__ARMv5ABSLongThunk_thumb_func> |
| // CHECK-NEXT: 21004: 01 00 00 fa blx 0x21010 <thumb_func> |
| // CHECK-NEXT: 21008: 00 00 00 fa blx 0x21010 <thumb_func> |
| // CHECK-NEXT: 2100c: 1e ff 2f e1 bx lr |
| |
| // CHECK: <thumb_func>: |
| // CHECK-NEXT: 21010: 70 47 bx lr |
| |
| // CHECK: <__ARMv5ABSLongThunk_thumb_func>: |
| // CHECK-NEXT: 21014: 04 f0 1f e5 ldr pc, [pc, #-4] |
| // CHECK: <$d>: |
| // CHECK-NEXT: 21018: 11 10 02 00 .word 0x00021011 |
| |
| // CHECK-PI: <_start>: |
| // CHECK-PI-NEXT: 11000: 03 00 00 ea b 0x11014 <__ARMV5PILongThunk_thumb_func> |
| // CHECK-PI-NEXT: 11004: 01 00 00 fa blx 0x11010 <thumb_func> |
| // CHECK-PI-NEXT: 11008: 00 00 00 fa blx 0x11010 <thumb_func> |
| // CHECK-PI-NEXT: 1100c: 1e ff 2f e1 bx lr |
| |
| // CHECK-PI: <thumb_func>: |
| // CHECK-PI-NEXT: 11010: 70 47 bx lr |
| |
| // CHECK-PI: <__ARMV5PILongThunk_thumb_func>: |
| // CHECK-PI-NEXT: 11014: 04 c0 9f e5 ldr r12, [pc, #4] |
| // CHECK-PI-NEXT: 11018: 0c c0 8f e0 add r12, pc, r12 |
| // CHECK-PI-NEXT: 1101c: 1c ff 2f e1 bx r12 |
| // CHECK-PI: <$d>: |
| // CHECK-PI-NEXT: 11020: f1 ff ff ff .word 0xfffffff1 |
| |
| .section .text.1, "ax", %progbits |
| .thumb |
| .hidden thumb_func |
| .type thumb_func, %function |
| thumb_func: |
| bx lr |
