| // REQUIRES: x86 |
| // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o |
| // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o |
| // RUN: ld.lld -shared %t2.o -o %t2.so |
| // RUN: ld.lld -shared %t.o %t2.so -o %t |
| // RUN: ld.lld %t.o %t2.so -o %t3 |
| // RUN: llvm-readobj -s -r %t | FileCheck %s |
| // RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s |
| // RUN: llvm-readobj -s -r %t3 | FileCheck --check-prefix=CHECK2 %s |
| // RUN: llvm-objdump -d %t3 | FileCheck --check-prefix=DISASM2 %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: 0x1020 |
| // CHECK-NEXT: Offset: |
| // CHECK-NEXT: Size: 64 |
| // CHECK-NEXT: Link: 0 |
| // CHECK-NEXT: Info: 0 |
| // CHECK-NEXT: AddressAlignment: 16 |
| |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section ({{.*}}) .rela.plt { |
| // CHECK-NEXT: 0x2018 R_X86_64_JUMP_SLOT bar 0x0 |
| // CHECK-NEXT: 0x2020 R_X86_64_JUMP_SLOT zed 0x0 |
| // CHECK-NEXT: 0x2028 R_X86_64_JUMP_SLOT _start 0x0 |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| |
| // CHECK2: Name: .plt |
| // CHECK2-NEXT: Type: SHT_PROGBITS |
| // CHECK2-NEXT: Flags [ |
| // CHECK2-NEXT: SHF_ALLOC |
| // CHECK2-NEXT: SHF_EXECINSTR |
| // CHECK2-NEXT: ] |
| // CHECK2-NEXT: Address: 0x201020 |
| // CHECK2-NEXT: Offset: |
| // CHECK2-NEXT: Size: 48 |
| // CHECK2-NEXT: Link: 0 |
| // CHECK2-NEXT: Info: 0 |
| // CHECK2-NEXT: AddressAlignment: 16 |
| |
| // CHECK2: Relocations [ |
| // CHECK2-NEXT: Section ({{.*}}) .rela.plt { |
| // CHECK2-NEXT: 0x202018 R_X86_64_JUMP_SLOT bar 0x0 |
| // CHECK2-NEXT: 0x202020 R_X86_64_JUMP_SLOT zed 0x0 |
| // CHECK2-NEXT: } |
| // CHECK2-NEXT: ] |
| |
| // Unfortunately FileCheck can't do math, so we have to check for explicit |
| // values: |
| |
| // 0x1030 - (0x1000 + 5) = 43 |
| // 0x1030 - (0x1005 + 5) = 38 |
| // 0x1040 - (0x100a + 5) = 49 |
| // 0x1048 - (0x100a + 5) = 60 |
| |
| // DISASM: _start: |
| // DISASM-NEXT: 1000: e9 {{.*}} jmp 43 |
| // DISASM-NEXT: 1005: e9 {{.*}} jmp 38 |
| // DISASM-NEXT: 100a: e9 {{.*}} jmp 49 |
| // DISASM-NEXT: 100f: e9 {{.*}} jmp 60 |
| |
| // 0x2018 - 0x1036 = 4066 |
| // 0x2020 - 0x1046 = 4058 |
| // 0x2028 - 0x1056 = 4050 |
| |
| // DISASM: Disassembly of section .plt: |
| // DISASM-NEXT: .plt: |
| // DISASM-NEXT: 1020: ff 35 e2 0f 00 00 pushq 4066(%rip) |
| // DISASM-NEXT: 1026: ff 25 e4 0f 00 00 jmpq *4068(%rip) |
| // DISASM-NEXT: 102c: 0f 1f 40 00 nopl (%rax) |
| // DISASM-NEXT: 1030: ff 25 e2 0f 00 00 jmpq *4066(%rip) |
| // DISASM-NEXT: 1036: 68 00 00 00 00 pushq $0 |
| // DISASM-NEXT: 103b: e9 e0 ff ff ff jmp -32 <.plt> |
| // DISASM-NEXT: 1040: ff 25 da 0f 00 00 jmpq *4058(%rip) |
| // DISASM-NEXT: 1046: 68 01 00 00 00 pushq $1 |
| // DISASM-NEXT: 104b: e9 d0 ff ff ff jmp -48 <.plt> |
| // DISASM-NEXT: 1050: ff 25 d2 0f 00 00 jmpq *4050(%rip) |
| // DISASM-NEXT: 1056: 68 02 00 00 00 pushq $2 |
| // DISASM-NEXT: 105b: e9 c0 ff ff ff jmp -64 <.plt> |
| |
| // 0x201030 - (0x201000 + 1) - 4 = 43 |
| // 0x201030 - (0x201005 + 1) - 4 = 38 |
| // 0x201040 - (0x20100a + 1) - 4 = 49 |
| // 0x201000 - (0x20100f + 1) - 4 = -20 |
| |
| // DISASM2: _start: |
| // DISASM2-NEXT: 201000: e9 {{.*}} jmp 43 |
| // DISASM2-NEXT: 201005: e9 {{.*}} jmp 38 |
| // DISASM2-NEXT: 20100a: e9 {{.*}} jmp 49 |
| // DISASM2-NEXT: 20100f: e9 {{.*}} jmp -20 |
| |
| // 0x202018 - 0x201036 = 4066 |
| // 0x202020 - 0x201046 = 4058 |
| |
| // DISASM2: Disassembly of section .plt: |
| // DISASM2-NEXT: .plt: |
| // DISASM2-NEXT: 201020: ff 35 e2 0f 00 00 pushq 4066(%rip) |
| // DISASM2-NEXT: 201026: ff 25 e4 0f 00 00 jmpq *4068(%rip) |
| // DISASM2-NEXT: 20102c: 0f 1f 40 00 nopl (%rax) |
| // DISASM2-NEXT: 201030: ff 25 e2 0f 00 00 jmpq *4066(%rip) |
| // DISASM2-NEXT: 201036: 68 00 00 00 00 pushq $0 |
| // DISASM2-NEXT: 20103b: e9 e0 ff ff ff jmp -32 <.plt> |
| // DISASM2-NEXT: 201040: ff 25 da 0f 00 00 jmpq *4058(%rip) |
| // DISASM2-NEXT: 201046: 68 01 00 00 00 pushq $1 |
| // DISASM2-NEXT: 20104b: e9 d0 ff ff ff jmp -48 <.plt> |
| // DISASM2-NOT: 2010C0 |
| |
| .global _start |
| _start: |
| jmp bar@PLT |
| jmp bar@PLT |
| jmp zed@PLT |
| jmp _start@plt |
