| // REQUIRES: x86 |
| // RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o |
| // RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared.s -o %t2.o |
| // RUN: ld.lld -shared %t2.o -soname=t2.so -o %t2.so |
| // RUN: ld.lld %t.o %t2.so -o %t |
| // RUN: llvm-readobj -S -r %t | FileCheck %s |
| // RUN: llvm-objdump -d --no-show-raw-insn --print-imm-hex %t | FileCheck --check-prefix=DISASM %s |
| // RUN: ld.lld -shared %t.o %t2.so -o %t |
| // RUN: llvm-readobj -S -r %t | FileCheck --check-prefix=CHECKSHARED %s |
| // RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=DISASMSHARED %s |
| // RUN: ld.lld -pie %t.o %t2.so -o %t |
| // RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefix=DISASMPIE %s |
| |
| // CHECK: Name: .plt |
| // CHECK-NEXT: Type: SHT_PROGBITS |
| // CHECK-NEXT: Flags [ |
| // CHECK-NEXT: SHF_ALLOC |
| // CHECK-NEXT: SHF_EXECINSTR |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: Address: 0x4011E0 |
| // CHECK-NEXT: Offset: |
| // CHECK-NEXT: Size: 48 |
| // CHECK-NEXT: Link: 0 |
| // CHECK-NEXT: Info: 0 |
| // CHECK-NEXT: AddressAlignment: 16 |
| |
| // CHECK: Name: .got.plt |
| // CHECK-NEXT: Type: SHT_PROGBITS |
| // CHECK-NEXT: Flags [ |
| // CHECK-NEXT: SHF_ALLOC |
| // CHECK-NEXT: SHF_WRITE |
| // CHECK-NEXT: ] |
| // CHECK-NEXT: Address: 0x403278 |
| // CHECK-NEXT: Offset: 0x278 |
| // CHECK-NEXT: Size: 20 |
| // CHECK-NEXT: Link: 0 |
| // CHECK-NEXT: Info: 0 |
| // CHECK-NEXT: AddressAlignment: 4 |
| // CHECK-NEXT: EntrySize: 0 |
| |
| // First 3 slots of .got.plt are reserved. |
| // &.got.plt[3] = 0x403278 + 12 = 0x403284 |
| // &.got.plt[4] = 0x403278 + 16 = 0x403288 |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section ({{.*}}) .rel.plt { |
| // CHECK-NEXT: 0x403284 R_386_JUMP_SLOT bar 0x0 |
| // CHECK-NEXT: 0x403288 R_386_JUMP_SLOT zed 0x0 |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| |
| // DISASM: <local>: |
| // DISASM-NEXT: 4011bc: |
| // DISASM-NEXT: 4011be: |
| // DISASM: <_start>: |
| // DISASM-NEXT: 4011c0: jmp 0x4011f0 <bar@plt> |
| // DISASM-NEXT: 4011c5: jmp 0x4011f0 <bar@plt> |
| // DISASM-NEXT: 4011ca: jmp 0x401200 <zed@plt> |
| // DISASM-NEXT: 4011cf: jmp 0x4011bc <local> |
| |
| // DISASM: Disassembly of section .plt: |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <.plt>: |
| /// Push .got.plt[1], then jump to .got.plt[2] |
| // DISASM-NEXT: 4011e0: pushl 0x40327c |
| // DISASM-NEXT: jmpl *0x403280 |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-NEXT: nop |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <bar@plt>: |
| /// .got.plt[3] = 0x403278 + 12 = 0x403284 |
| // DISASM-NEXT: 4011f0: jmpl *0x403284 |
| // DISASM-NEXT: pushl $0x0 |
| // DISASM-NEXT: jmp 0x4011e0 <.plt> |
| // DISASM-EMPTY: |
| // DISASM-NEXT: <zed@plt>: |
| /// .got.plt[4] = 0x403278 + 16 = 0x403288 |
| // DISASM-NEXT: 401200: jmpl *0x403288 |
| // DISASM-NEXT: pushl $0x8 |
| // DISASM-NEXT: jmp 0x4011e0 <.plt> |
| |
| // CHECKSHARED: Name: .plt |
| // CHECKSHARED-NEXT: Type: SHT_PROGBITS |
| // CHECKSHARED-NEXT: Flags [ |
| // CHECKSHARED-NEXT: SHF_ALLOC |
| // CHECKSHARED-NEXT: SHF_EXECINSTR |
| // CHECKSHARED-NEXT: ] |
| // CHECKSHARED-NEXT: Address: 0x1200 |
| // CHECKSHARED-NEXT: Offset: 0x200 |
| // CHECKSHARED-NEXT: Size: 48 |
| // CHECKSHARED-NEXT: Link: 0 |
| // CHECKSHARED-NEXT: Info: 0 |
| // CHECKSHARED-NEXT: AddressAlignment: 16 |
| // CHECKSHARED-NEXT: EntrySize: 0 |
| // CHECKSHARED-NEXT: } |
| // CHECKSHARED: Name: .got.plt |
| // CHECKSHARED-NEXT: Type: SHT_PROGBITS |
| // CHECKSHARED-NEXT: Flags [ |
| // CHECKSHARED-NEXT: SHF_ALLOC |
| // CHECKSHARED-NEXT: SHF_WRITE |
| // CHECKSHARED-NEXT: ] |
| // CHECKSHARED-NEXT: Address: 0x3290 |
| // CHECKSHARED-NEXT: Offset: 0x290 |
| // CHECKSHARED-NEXT: Size: 20 |
| // CHECKSHARED-NEXT: Link: 0 |
| // CHECKSHARED-NEXT: Info: 0 |
| // CHECKSHARED-NEXT: AddressAlignment: 4 |
| // CHECKSHARED-NEXT: EntrySize: 0 |
| // CHECKSHARED-NEXT: } |
| |
| // 0x3000 + got.plt.reserved(12) = 0x300C |
| // 0x3000 + got.plt.reserved(12) + 4 = 0x3010 |
| // CHECKSHARED: Relocations [ |
| // CHECKSHARED-NEXT: Section ({{.*}}) .rel.plt { |
| // CHECKSHARED-NEXT: 0x329C R_386_JUMP_SLOT bar 0x0 |
| // CHECKSHARED-NEXT: 0x32A0 R_386_JUMP_SLOT zed 0x0 |
| // CHECKSHARED-NEXT: } |
| // CHECKSHARED-NEXT: ] |
| |
| // DISASMSHARED: <local>: |
| // DISASMSHARED-NEXT: 11e0: |
| // DISASMSHARED-NEXT: 11e2: |
| // DISASMSHARED: <_start>: |
| // DISASMSHARED-NEXT: 11e4: jmp 0x1210 <bar@plt> |
| // DISASMSHARED-NEXT: jmp 0x1210 <bar@plt> |
| // DISASMSHARED-NEXT: jmp 0x1220 <zed@plt> |
| // DISASMSHARED-NEXT: jmp 0x11e0 <local> |
| // DISASMSHARED-EMPTY: |
| // DISASMSHARED-NEXT: Disassembly of section .plt: |
| // DISASMSHARED-EMPTY: |
| // DISASMSHARED-NEXT: <.plt>: |
| // DISASMSHARED-NEXT: 1200: pushl 4(%ebx) |
| // DISASMSHARED-NEXT: jmpl *8(%ebx) |
| // DISASMSHARED-NEXT: nop |
| // DISASMSHARED-NEXT: nop |
| // DISASMSHARED-NEXT: nop |
| // DISASMSHARED-NEXT: nop |
| // DISASMSHARED: <bar@plt>: |
| // DISASMSHARED-NEXT: 1210: jmpl *12(%ebx) |
| // DISASMSHARED-NEXT: pushl $0 |
| // DISASMSHARED-NEXT: jmp 0x1200 <.plt> |
| // DISASMSHARED: <zed@plt>: |
| // DISASMSHARED-NEXT: 1220: jmpl *16(%ebx) |
| // DISASMSHARED-NEXT: pushl $8 |
| // DISASMSHARED-NEXT: jmp 0x1200 <.plt> |
| |
| // DISASMPIE: Disassembly of section .plt: |
| // DISASMPIE-EMPTY: |
| // DISASMPIE-NEXT: <.plt>: |
| // DISASMPIE-NEXT: 11e0: pushl 4(%ebx) |
| // DISASMPIE-NEXT: jmpl *8(%ebx) |
| // DISASMPIE-NEXT: nop |
| // DISASMPIE-NEXT: nop |
| // DISASMPIE-NEXT: nop |
| // DISASMPIE-NEXT: nop |
| // DISASMPIE-EMPTY: |
| // DISASMPIE-NEXT: <bar@plt>: |
| // DISASMPIE-NEXT: 11f0: jmpl *12(%ebx) |
| // DISASMPIE-NEXT: pushl $0 |
| // DISASMPIE-NEXT: jmp 0x11e0 <.plt> |
| // DISASMPIE-EMPTY: |
| // DISASMPIE-NEXT: <zed@plt>: |
| // DISASMPIE-NEXT: 1200: jmpl *16(%ebx) |
| // DISASMPIE-NEXT: pushl $8 |
| // DISASMPIE-NEXT: jmp 0x11e0 <.plt> |
| |
| local: |
| .long 0 |
| |
| .global _start |
| _start: |
| jmp bar@PLT |
| jmp bar@PLT |
| jmp zed@PLT |
| jmp local@plt |