| // 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 --print-imm-hex %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 PLTRELSZ tag does not include the IRELATIVE relocations |
| // CHECK: DynamicSection [ |
| // CHECK: 0x00000012 RELSZ 24 (bytes) |
| // CHECK: 0x00000002 PLTRELSZ 16 (bytes) |
| |
| /// Check that the IRELATIVE relocations are placed to the .rel.dyn section after |
| /// other regular relocations (e.g. GLOB_DAT). |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section (4) .rel.dyn { |
| // CHECK-NEXT: 0x4022C8 R_386_GLOB_DAT bar3 |
| // CHECK-NEXT: 0x4032E0 R_386_IRELATIVE - |
| // CHECK-NEXT: 0x4032E4 R_386_IRELATIVE - |
| // CHECK-NEXT: } |
| // CHECK-NEXT: Section (5) .rel.plt { |
| // CHECK-NEXT: 0x4032D8 R_386_JUMP_SLOT bar2 |
| // CHECK-NEXT: 0x4032DC 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: 4032cc 50224000 00000000 00000000 16124000 |
| // GOTPLT-NEXT: 4032dc 26124000 dc114000 dd114000 |
| // ^ ^-- <bar> (0x4011dd) |
| // -- <foo> (0x4011dcd) |
| |
| /// Check that we have 2 PLT sections: one regular .plt section and one |
| /// .iplt section for ifunc entries. |
| // DISASM: Disassembly of section .text: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <foo>: |
| // DISASM-NEXT: 4011dc: retl |
| // DISASM: <bar>: |
| // DISASM-NEXT: 4011dd: retl |
| // DISASM: <_start>: |
| // DISASM-NEXT: 4011de: calll 0x401230 |
| // DISASM-NEXT: calll 0x401240 |
| // DISASM-NEXT: calll 0x401210 <bar2@plt> |
| // DISASM-NEXT: calll 0x401220 <zed2@plt> |
| // DISASM-NEXT: movl -0x1004(%eax), %eax |
| // DISASM-EMPTY: |
| // DISASM-NEXT: Disassembly of section .plt: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <.plt>: |
| // DISASM-NEXT: 401200: pushl 0x4032d0 |
| // DISASM-NEXT: jmpl *0x4032d4 |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <bar2@plt>: |
| // DISASM-NEXT: 401210: jmpl *0x4032d8 |
| // DISASM-NEXT: pushl $0x0 |
| // DISASM-NEXT: jmp 0x401200 <.plt> |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <zed2@plt>: |
| // DISASM-NEXT: 401220: jmpl *0x4032dc |
| // DISASM-NEXT: pushl $0x8 |
| // DISASM-NEXT: jmp 0x401200 <.plt> |
| // DISASM-EMPTY: |
| // DISASM-NEXT: Disassembly of section .iplt: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <.iplt>: |
| // DISASM-NEXT: jmpl *0x4032e0 |
| // DISASM-NEXT: pushl $0x0 |
| // DISASM-NEXT: jmp 0x401200 <.plt> |
| // DISASM-NEXT: jmpl *0x4032e4 |
| // DISASM-NEXT: pushl $0x8 |
| // DISASM-NEXT: jmp 0x401200 <.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 |
| movl bar3@GOT(%eax), %eax |