| // 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 -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 %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.plt { |
| // CHECK-NEXT: 0x40200C R_386_JUMP_SLOT bar2 |
| // CHECK-NEXT: 0x402010 R_386_JUMP_SLOT zed2 |
| // CHECK-NEXT: 0x402014 R_386_IRELATIVE |
| // CHECK-NEXT: 0x402018 R_386_IRELATIVE |
| |
| // 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: 402000 00304000 00000000 00000000 36104000 |
| // GOTPLT-NEXT: 402010 46104000 00104000 01104000 |
| |
| // Check that the PLTRELSZ tag includes the IRELATIVE relocations |
| // CHECK: DynamicSection [ |
| // CHECK: 0x00000002 PLTRELSZ 32 (bytes) |
| |
| // Check that a PLT header is written and the ifunc entries appear last |
| // DISASM: Disassembly of section .text: |
| // DISASM-NEXT: foo: |
| // DISASM-NEXT: 401000: c3 retl |
| // DISASM: bar: |
| // DISASM-NEXT: 401001: c3 retl |
| // DISASM: _start: |
| // DISASM-NEXT: 401002: e8 49 00 00 00 calll 73 |
| // DISASM-NEXT: 401007: e8 54 00 00 00 calll 84 |
| // DISASM-NEXT: 40100c: e8 1f 00 00 00 calll 31 |
| // DISASM-NEXT: 401011: e8 2a 00 00 00 calll 42 |
| // DISASM-NEXT: Disassembly of section .plt: |
| // DISASM-NEXT: .plt: |
| // DISASM-NEXT: 401020: ff 35 04 20 40 00 pushl 4202500 |
| // DISASM-NEXT: 401026: ff 25 08 20 40 00 jmpl *4202504 |
| // DISASM-NEXT: 40102c: 90 nop |
| // DISASM-NEXT: 40102d: 90 nop |
| // DISASM-NEXT: 40102e: 90 nop |
| // DISASM-NEXT: 40102f: 90 nop |
| // DISASM-EMPTY: |
| // DISASM-NEXT: bar2@plt: |
| // DISASM-NEXT: 401030: ff 25 0c 20 40 00 jmpl *4202508 |
| // DISASM-NEXT: 401036: 68 00 00 00 00 pushl $0 |
| // DISASM-NEXT: 40103b: e9 e0 ff ff ff jmp -32 <.plt> |
| // DISASM-EMPTY: |
| // DISASM-NEXT: zed2@plt: |
| // DISASM-NEXT: 401040: ff 25 10 20 40 00 jmpl *4202512 |
| // DISASM-NEXT: 401046: 68 08 00 00 00 pushl $8 |
| // DISASM-NEXT: 40104b: e9 d0 ff ff ff jmp -48 <.plt> |
| // DISASM-NEXT: 401050: ff 25 14 20 40 00 jmpl *4202516 |
| // DISASM-NEXT: 401056: 68 30 00 00 00 pushl $48 |
| // DISASM-NEXT: 40105b: e9 e0 ff ff ff jmp -32 <zed2@plt> |
| // DISASM-NEXT: 401060: ff 25 18 20 40 00 jmpl *4202520 |
| // DISASM-NEXT: 401066: 68 38 00 00 00 pushl $56 |
| // DISASM-NEXT: 40106b: 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@plt |
| call bar@plt |
| call bar2@plt |
| call zed2@plt |
