| // 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 --hash-style=sysv %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 (4) .rel.dyn { |
| // CHECK-NEXT: 0x12078 R_ARM_GLOB_DAT bar2 0x0 |
| // CHECK-NEXT: 0x1207C R_ARM_GLOB_DAT zed2 0x0 |
| // CHECK-NEXT: 0x12080 R_ARM_IRELATIVE - 0x0 |
| // CHECK-NEXT: 0x12084 R_ARM_IRELATIVE - 0x0 |
| // CHECK-NEXT: } |
| // CHECK-NEXT: Section (5) .rel.plt { |
| // CHECK-NEXT: 0x1300C R_ARM_JUMP_SLOT bar2 0x0 |
| // CHECK-NEXT: 0x13010 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: |
| // GOTPLT-NEXT: 12078 00000000 00000000 00100100 04100100 |
| // GOTPLT: Contents of section .got.plt: |
| // GOTPLT-NEXT: 13000 00000000 00000000 00000000 20100100 |
| // GOTPLT-NEXT: 13010 20100100 |
| |
| // DISASM: Disassembly of section .text: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: foo: |
| // DISASM-NEXT: 11000: bx lr |
| // DISASM: bar: |
| // DISASM-NEXT: 11004: bx lr |
| // DISASM: _start: |
| // DISASM-NEXT: 11008: bl #80 |
| // DISASM-NEXT: 1100c: bl #92 |
| // DISASM: $d.1: |
| // DISASM-NEXT: 11010: 00 00 00 00 .word 0x00000000 |
| // DISASM-NEXT: 11014: 04 00 00 00 .word 0x00000004 |
| // DISASM: 11018: bl #32 |
| // DISASM-NEXT: 1101c: bl #44 |
| // DISASM-EMPTY: |
| // DISASM-NEXT: Disassembly of section .plt: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: $a: |
| // DISASM-NEXT: 11020: str lr, [sp, #-4]! |
| // DISASM-NEXT: 11024: add lr, pc, #0, #12 |
| // DISASM-NEXT: 11028: add lr, lr, #4096 |
| // DISASM-NEXT: 1102c: ldr pc, [lr, #4060]! |
| // DISASM: $d: |
| // DISASM-NEXT: 11030: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 11034: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 11038: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM-NEXT: 1103c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: $a: |
| // DISASM-NEXT: 11040: add r12, pc, #0, #12 |
| // DISASM-NEXT: 11044: add r12, r12, #4096 |
| // DISASM-NEXT: 11048: ldr pc, [r12, #4036]! |
| // DISASM: $d: |
| // DISASM-NEXT: 1104c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: $a: |
| // DISASM-NEXT: 11050: add r12, pc, #0, #12 |
| // DISASM-NEXT: 11054: add r12, r12, #4096 |
| // DISASM-NEXT: 11058: ldr pc, [r12, #4024]! |
| // DISASM: $d: |
| // DISASM-NEXT: 1105c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: $a: |
| // DISASM-NEXT: 11060: add r12, pc, #0, #12 |
| // DISASM-NEXT: 11064: add r12, r12, #4096 |
| // DISASM-NEXT: 11068: ldr pc, [r12, #24]! |
| // DISASM: $d: |
| // DISASM-NEXT: 1106c: d4 d4 d4 d4 .word 0xd4d4d4d4 |
| // DISASM: $a: |
| // DISASM-NEXT: 11070: add r12, pc, #0, #12 |
| // DISASM-NEXT: 11074: add r12, r12, #4096 |
| // DISASM-NEXT: 11078: ldr pc, [r12, #12]! |
| // DISASM: $d: |
| // DISASM-NEXT: 1107c: 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 |
