| // REQUIRES: arm |
| // RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %S/Inputs/arm-shared.s -o %t1.o |
| // RUN: ld.lld %t1.o --shared -soname=t.so -o %t.so |
| // RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %s -o %t.o |
| // RUN: ld.lld %t.so %t.o -o %tout |
| // RUN: llvm-objdump --triple=armv7a-linux-gnueabihf -d --no-show-raw-insn %tout | FileCheck %s --check-prefix=DISASM |
| // RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT |
| // RUN: llvm-readobj -r --dynamic-table %tout | FileCheck %s |
| |
| // Check that the IRELATIVE relocations are last in the .got |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section (5) .rel.dyn { |
| // CHECK-NEXT: 0x302E0 R_ARM_GLOB_DAT bar2 |
| // CHECK-NEXT: 0x302E4 R_ARM_GLOB_DAT zed2 |
| // CHECK-NEXT: 0x302E8 R_ARM_IRELATIVE - |
| // CHECK-NEXT: 0x302EC R_ARM_IRELATIVE - |
| // CHECK-NEXT: } |
| // CHECK-NEXT: Section (6) .rel.plt { |
| // CHECK-NEXT: 0x402FC R_ARM_JUMP_SLOT bar2 |
| // CHECK-NEXT: 0x40300 R_ARM_JUMP_SLOT zed2 |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| |
| // Check that the GOT entries refer back to the ifunc resolver |
| // GOTPLT: Contents of section .got: |
| // GOTPLT-NEXT: 302e0 00000000 00000000 dc010200 e0010200 |
| // GOTPLT: Contents of section .got.plt: |
| // GOTPLT-NEXT: 402f0 00000000 00000000 00000000 00020200 |
| // GOTPLT-NEXT: 40300 00020200 |
| |
| // DISASM: Disassembly of section .text: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <foo>: |
| // DISASM-NEXT: 201dc: bx lr |
| // DISASM: <bar>: |
| // DISASM-NEXT: 201e0: bx lr |
| // DISASM: <_start>: |
| // DISASM-NEXT: 201e4: bl 0x20240 |
| // DISASM-NEXT: 201e8: bl 0x20250 |
| // DISASM: <$d.1>: |
| // DISASM-NEXT: 201ec: 00 00 00 00 .word 0x00000000 |
| // DISASM-NEXT: 201f0: 04 00 00 00 .word 0x00000004 |
| // DISASM: 201f4: bl 0x20220 |
| // DISASM-NEXT: 201f8: bl 0x20230 |
| // DISASM-EMPTY: |
| // DISASM-NEXT: Disassembly of section .plt: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <$a>: |
| // DISASM-NEXT: 20200: str lr, [sp, #-4]! |
| // DISASM-NEXT: 20204: add lr, pc, #0, #12 |
| // DISASM-NEXT: 20208: add lr, lr, #32 |
| // DISASM-NEXT: 2020c: ldr pc, [lr, #236]! |
| // DISASM: <$d>: |
| // DISASM-NEXT: 20210: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 20214: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 20218: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 2021c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: <$a>: |
| // DISASM-NEXT: 20220: add r12, pc, #0, #12 |
| // DISASM-NEXT: 20224: add r12, r12, #32 |
| // DISASM-NEXT: 20228: ldr pc, [r12, #212]! |
| // DISASM: <$d>: |
| // DISASM-NEXT: 2022c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: <$a>: |
| // DISASM-NEXT: 20230: add r12, pc, #0, #12 |
| // DISASM-NEXT: 20234: add r12, r12, #32 |
| // DISASM-NEXT: 20238: ldr pc, [r12, #200]! |
| // DISASM: <$d>: |
| // DISASM-NEXT: 2023c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: <$a>: |
| // DISASM-NEXT: 20240: add r12, pc, #0, #12 |
| // DISASM-NEXT: 20244: add r12, r12, #16 |
| // DISASM-NEXT: 20248: ldr pc, [r12, #160]! |
| // DISASM: <$d>: |
| // DISASM-NEXT: 2024c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: <$a>: |
| // DISASM-NEXT: 20250: add r12, pc, #0, #12 |
| // DISASM-NEXT: 20254: add r12, r12, #16 |
| // DISASM-NEXT: 20258: ldr pc, [r12, #148]! |
| // DISASM: <$d>: |
| // DISASM-NEXT: 2025c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| |
| .syntax unified |
| .text |
| .type foo STT_GNU_IFUNC |
| .globl foo |
| foo: |
| bx lr |
| |
| .type bar STT_GNU_IFUNC |
| .globl bar |
| bar: |
| bx lr |
| |
| .globl _start |
| _start: |
| bl foo |
| bl bar |
| // Create entries in the .got and .rel.dyn so that we don't just have |
| // IRELATIVE |
| .word bar2(got) |
| .word zed2(got) |
| bl bar2 |
| bl zed2 |
