| // REQUIRES: arm |
| // RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t |
| // RUN: ld.lld %t -o %t2 2>&1 |
| // RUN: llvm-objdump -triple=armv7a-none-linux-gnueabi -d %t2 | FileCheck %s |
| |
| // Check that the ARM ABI rules for undefined weak symbols are applied. |
| // Branch instructions are resolved to the next instruction. Undefined |
| // Symbols in relative are resolved to the place so S - P + A = A. |
| |
| .syntax unified |
| |
| .weak target |
| |
| .text |
| .global _start |
| _start: |
| // R_ARM_JUMP24 |
| b target |
| // R_ARM_CALL |
| bl target |
| // R_ARM_CALL with exchange |
| blx target |
| // R_ARM_MOVT_PREL |
| movt r0, :upper16:target - . |
| // R_ARM_MOVW_PREL_NC |
| movw r0, :lower16:target - . |
| // R_ARM_REL32 |
| .word target - . |
| |
| // CHECK: Disassembly of section .text: |
| // 69636 = 0x11004 |
| // CHECK: 11000: {{.*}} b #-4 <_start+0x4> |
| // CHECK-NEXT: 11004: {{.*}} bl #-4 <_start+0x8> |
| // blx is transformed into bl so we don't change state |
| // CHECK-NEXT: 11008: {{.*}} bl #-4 <_start+0xc> |
| // CHECK-NEXT: 1100c: {{.*}} movt r0, #0 |
| // CHECK-NEXT: 11010: {{.*}} movw r0, #0 |
| // CHECK: 11014: {{.*}} .word 0x00000000 |
| |
