| // REQUIRES: arm |
| // RUN: llvm-mc --arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t |
| // RUN: ld.lld %t -o %t2 |
| // RUN: llvm-objdump -d %t2 | FileCheck %s |
| |
| /// Check that the ARM ABI rules for undefined weak symbols are applied. |
| /// Branch instructions are resolved to the next instruction. Relative |
| /// relocations are resolved to the place. |
| |
| .syntax unified |
| |
| .weak target |
| .type target, %function |
| |
| .text |
| .global _start |
| _start: |
| /// R_ARM_THM_JUMP19 |
| beq.w target |
| /// R_ARM_THM_JUMP24 |
| b.w target |
| /// R_ARM_THM_CALL |
| bl target |
| /// R_ARM_THM_CALL with exchange |
| blx target |
| /// R_ARM_THM_MOVT_PREL |
| movt r0, :upper16:target - . |
| /// R_ARM_THM_MOVW_PREL_NC |
| movw r0, :lower16:target - . |
| /// R_ARM_THM_ALU_PREL_11_0 |
| /// adr r0, target |
| .inst.w 0xf2af0004 |
| .reloc 0x18, R_ARM_THM_ALU_PREL_11_0, target |
| /// R_ARM_THM_PC12 |
| /// ldr r0, target |
| .inst.w 0xf85f0004 |
| .reloc 0x1c, R_ARM_THM_PC12, target |
| // CHECK: Disassembly of section .text: |
| // CHECK-EMPTY: |
| // CHECK: 200b4: {{.*}} beq.w 0x200b8 <_start+0x4> @ imm = #0 |
| // CHECK-NEXT: 200b8: {{.*}} b.w 0x200bc <_start+0x8> @ imm = #0 |
| // CHECK-NEXT: 200bc: {{.*}} bl 0x200c0 <_start+0xc> @ imm = #0 |
| /// blx is transformed into bl so we don't change state |
| // CHECK-NEXT: 200c0: {{.*}} bl 0x200c4 <_start+0x10> @ imm = #0 |
| // CHECK-NEXT: 200c4: {{.*}} movt r0, #0 |
| // CHECK-NEXT: 200c8: {{.*}} movw r0, #0 |
| // CHECK-NEXT: 200cc: {{.*}} adr.w r0, #-4 |
| // CHECK-NEXT: 200d0: {{.*}} ldr.w r0, [pc, #-4] |
