| // REQUIRES: x86 |
| // RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o |
| // RUN: ld.lld %t1.o --shared --soname=t.so -o %t.so |
| // RUN: llvm-mc -filetype=obj -triple=i686-pc-linux %s -o %t.o |
| // RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout |
| // RUN: llvm-objdump -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 after the JUMP_SLOT in the plt |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section (4) .rel.dyn { |
| // CHECK-NEXT: 0x4032AC R_386_IRELATIVE |
| // CHECK-NEXT: 0x4032B0 R_386_IRELATIVE |
| // CHECK-NEXT: } |
| // CHECK-NEXT: Section (5) .rel.plt { |
| // CHECK-NEXT: 0x4032A4 R_386_JUMP_SLOT bar2 |
| // CHECK-NEXT: 0x4032A8 R_386_JUMP_SLOT zed2 |
| // CHECK-NEXT: } |
| |
| // Check that IRELATIVE .got.plt entries point to ifunc resolver and not |
| // back to the plt entry + 6. |
| // GOTPLT: Contents of section .got.plt: |
| // GOTPLT: 403298 20224000 00000000 00000000 e6114000 |
| // GOTPLT-NEXT: 4032a8 f6114000 b4114000 b5114000 |
| |
| // Check that the PLTRELSZ tag does not include the IRELATIVE relocations |
| // CHECK: DynamicSection [ |
| // CHECK: 0x00000012 RELSZ 16 (bytes) |
| // CHECK: 0x00000002 PLTRELSZ 16 (bytes) |
| |
| // Check that a PLT header is written and the ifunc entries appear last |
| // DISASM: Disassembly of section .text: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: foo: |
| // DISASM-NEXT: 4011b4: retl |
| // DISASM: bar: |
| // DISASM-NEXT: 4011b5: retl |
| // DISASM: _start: |
| // DISASM-NEXT: 4011b6: calll 69 <zed2@plt+0x10> |
| // DISASM-NEXT: calll 80 <zed2@plt+0x20> |
| // DISASM-NEXT: calll 27 <bar2@plt> |
| // DISASM-NEXT: calll 38 <zed2@plt> |
| // DISASM-EMPTY: |
| // DISASM-NEXT: Disassembly of section .plt: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: .plt: |
| // DISASM-NEXT: 4011d0: pushl 4207260 |
| // DISASM-NEXT: jmpl *4207264 |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-EMPTY: |
| // DISASM-NEXT: bar2@plt: |
| // DISASM-NEXT: 4011e0: jmpl *4207268 |
| // DISASM-NEXT: pushl $0 |
| // DISASM-NEXT: jmp -32 <.plt> |
| // DISASM-EMPTY: |
| // DISASM-NEXT: zed2@plt: |
| // DISASM-NEXT: 4011f0: jmpl *4207272 |
| // DISASM-NEXT: pushl $8 |
| // DISASM-NEXT: jmp -48 <.plt> |
| // DISASM-NEXT: jmpl *4207276 |
| // DISASM-NEXT: pushl $48 |
| // DISASM-NEXT: jmp -32 <zed2@plt> |
| // DISASM-NEXT: jmpl *4207280 |
| // DISASM-NEXT: pushl $56 |
| // DISASM-NEXT: 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@plt |
| call bar@plt |
| call bar2@plt |
| call zed2@plt |
