| // RUN: llvm-mc -filetype=obj -triple=armv7a-linux-gnueabihf %S/Inputs/arm-shared.s -o %t1.o |
| // RUN: ld.lld %t1.o --shared -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 %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 |
| // REQUIRES: arm |
| |
| // Check that the IRELATIVE relocations are last in the .got |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section (4) .rel.dyn { |
| // CHECK-NEXT: 0x13078 R_ARM_GLOB_DAT bar2 0x0 |
| // CHECK-NEXT: 0x1307C R_ARM_GLOB_DAT zed2 0x0 |
| // CHECK-NEXT: 0x13080 R_ARM_IRELATIVE - 0x0 |
| // CHECK-NEXT: 0x13084 R_ARM_IRELATIVE - 0x0 |
| // CHECK-NEXT: } |
| // CHECK-NEXT: Section (5) .rel.plt { |
| // CHECK-NEXT: 0x1200C R_ARM_JUMP_SLOT bar2 0x0 |
| // CHECK-NEXT: 0x12010 R_ARM_JUMP_SLOT zed2 0x0 |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| |
| // Check that the GOT entries refer back to the ifunc resolver |
| // GOTPLT: Contents of section .got.plt: |
| // GOTPLT-NEXT: 12000 00000000 00000000 00000000 20100100 |
| // GOTPLT-NEXT: 12010 20100100 |
| // GOTPLT: Contents of section .got: |
| // GOTPLT-NEXT: 13078 00000000 00000000 00100100 04100100 |
| |
| // DISASM: Disassembly of section .text: |
| // DISASM-NEXT: foo: |
| // DISASM-NEXT: 11000: 1e ff 2f e1 bx lr |
| // DISASM: bar: |
| // DISASM-NEXT: 11004: 1e ff 2f e1 bx lr |
| // DISASM: _start: |
| // DISASM-NEXT: 11008: 14 00 00 eb bl #80 |
| // DISASM-NEXT: 1100c: 17 00 00 eb bl #92 |
| // DISASM: 11010: 00 00 00 00 .word 0x00000000 |
| // DISASM-NEXT: 11014: 04 00 00 00 .word 0x00000004 |
| // DISASM: 11018: 05 00 00 eb bl #20 |
| // DISASM-NEXT: 1101c: 08 00 00 eb bl #32 |
| // DISASM-NEXT: Disassembly of section .plt: |
| // DISASM-NEXT: $a: |
| // DISASM-NEXT: 11020: 04 e0 2d e5 str lr, [sp, #-4]! |
| // DISASM-NEXT: 11024: 04 e0 9f e5 ldr lr, [pc, #4] |
| // DISASM-NEXT: 11028: 0e e0 8f e0 add lr, pc, lr |
| // DISASM-NEXT: 1102c: 08 f0 be e5 ldr pc, [lr, #8]! |
| // DISASM: $d: |
| // DISASM-NEXT: 11030: d0 0f 00 00 .word 0x00000fd0 |
| // DISASM: $a: |
| // DISASM-NEXT: 11034: 04 c0 9f e5 ldr r12, [pc, #4] |
| // DISASM-NEXT: 11038: 0f c0 8c e0 add r12, r12, pc |
| // DISASM-NEXT: 1103c: 00 f0 9c e5 ldr pc, [r12] |
| // DISASM: $d: |
| // DISASM-NEXT: 11040: cc 0f 00 00 .word 0x00000fcc |
| // DISASM: $a: |
| // DISASM-NEXT: 11044: 04 c0 9f e5 ldr r12, [pc, #4] |
| // DISASM-NEXT: 11048: 0f c0 8c e0 add r12, r12, pc |
| // DISASM-NEXT: 1104c: 00 f0 9c e5 ldr pc, [r12] |
| // DISASM: $d: |
| // DISASM-NEXT: 11050: c0 0f 00 00 .word 0x00000fc0 |
| // Alignment to 16 byte boundary not strictly necessary on ARM, but harmless |
| // DISASM-NEXT: 11054: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 11058: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 1105c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: $a: |
| // DISASM-NEXT: 11060: 04 c0 9f e5 ldr r12, [pc, #4] |
| // DISASM-NEXT: 11064: 0f c0 8c e0 add r12, r12, pc |
| // DISASM-NEXT: 11068: 00 f0 9c e5 ldr pc, [r12] |
| // DISASM: $d: |
| // DISASM-NEXT: 1106c: 14 20 00 00 .word 0x00002014 |
| // DISASM: $a: |
| // DISASM-NEXT: 11070: 04 c0 9f e5 ldr r12, [pc, #4] |
| // DISASM-NEXT: 11074: 0f c0 8c e0 add r12, r12, pc |
| // DISASM-NEXT: 11078: 00 f0 9c e5 ldr pc, [r12] |
| // DISASM: $d: |
| // DISASM-NEXT: 1107c: 08 20 00 00 .word 0x00002008 |
| |
| .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 |
