| // REQUIRES: x86 |
| // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o |
| // RUN: ld.lld %t1.o --shared -o %t.so |
| // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o |
| // RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout |
| // RUN: llvm-objdump -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 |
| |
| // Check that the IRELATIVE relocations are after the JUMP_SLOT in the plt |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section (4) .rela.plt { |
| // CHECK-NEXT: 0x202018 R_X86_64_JUMP_SLOT bar2 0x0 |
| // CHECK-NEXT: 0x202020 R_X86_64_JUMP_SLOT zed2 0x0 |
| // CHECK-NEXT: 0x202028 R_X86_64_IRELATIVE - 0x201000 |
| // CHECK-NEXT: 0x202030 R_X86_64_IRELATIVE - 0x201001 |
| |
| // Check that .got.plt entries point back to PLT header |
| // GOTPLT: Contents of section .got.plt: |
| // GOTPLT-NEXT: 202000 00302000 00000000 00000000 00000000 |
| // GOTPLT-NEXT: 202010 00000000 00000000 36102000 00000000 |
| // GOTPLT-NEXT: 202020 46102000 00000000 56102000 00000000 |
| // GOTPLT-NEXT: 202030 66102000 00000000 |
| |
| // Check that the PLTRELSZ tag includes the IRELATIVE relocations |
| // CHECK: DynamicSection [ |
| // CHECK: 0x0000000000000002 PLTRELSZ 96 (bytes) |
| |
| // Check that a PLT header is written and the ifunc entries appear last |
| // DISASM: Disassembly of section .text: |
| // DISASM-NEXT: foo: |
| // DISASM-NEXT: 201000: c3 retq |
| // DISASM: bar: |
| // DISASM-NEXT: 201001: c3 retq |
| // DISASM: _start: |
| // DISASM-NEXT: 201002: e8 49 00 00 00 callq 73 |
| // DISASM-NEXT: 201007: e8 54 00 00 00 callq 84 |
| // DISASM-NEXT: 20100c: e8 1f 00 00 00 callq 31 |
| // DISASM-NEXT: 201011: e8 2a 00 00 00 callq 42 |
| // DISASM-NEXT: Disassembly of section .plt: |
| // DISASM-NEXT: .plt: |
| // DISASM-NEXT: 201020: ff 35 e2 0f 00 00 pushq 4066(%rip) |
| // DISASM-NEXT: 201026: ff 25 e4 0f 00 00 jmpq *4068(%rip) |
| // DISASM-NEXT: 20102c: 0f 1f 40 00 nopl (%rax) |
| // DISASM-EMPTY: |
| // DISASM-NEXT: bar2@plt: |
| // DISASM-NEXT: 201030: ff 25 e2 0f 00 00 jmpq *4066(%rip) |
| // DISASM-NEXT: 201036: 68 00 00 00 00 pushq $0 |
| // DISASM-NEXT: 20103b: e9 e0 ff ff ff jmp -32 <.plt> |
| // DISASM-EMPTY: |
| // DISASM-NEXT: zed2@plt: |
| // DISASM-NEXT: 201040: ff 25 da 0f 00 00 jmpq *4058(%rip) |
| // DISASM-NEXT: 201046: 68 01 00 00 00 pushq $1 |
| // DISASM-NEXT: 20104b: e9 d0 ff ff ff jmp -48 <.plt> |
| // DISASM-NEXT: 201050: ff 25 d2 0f 00 00 jmpq *4050(%rip) |
| // DISASM-NEXT: 201056: 68 00 00 00 00 pushq $0 |
| // DISASM-NEXT: 20105b: e9 e0 ff ff ff jmp -32 <zed2@plt> |
| // DISASM-NEXT: 201060: ff 25 ca 0f 00 00 jmpq *4042(%rip) |
| // DISASM-NEXT: 201066: 68 01 00 00 00 pushq $1 |
| // DISASM-NEXT: 20106b: e9 d0 ff ff ff jmp -48 <zed2@plt> |
| |
| .text |
| .type foo STT_GNU_IFUNC |
| .globl foo |
| foo: |
| ret |
| |
| .type bar STT_GNU_IFUNC |
| .globl bar |
| bar: |
| ret |
| |
| .globl _start |
| _start: |
| call foo |
| call bar |
| call bar2 |
| call zed2 |
