| // 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 -o %t2.so |
| // RUN: ld.lld %t.o %t2.so -o %t |
| // RUN: llvm-readobj -s -r %t | FileCheck %s |
| // RUN: llvm-objdump -d %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 %t | FileCheck --check-prefix=DISASMSHARED %s |
| // RUN: ld.lld -pie %t.o %t2.so -o %t |
| // RUN: llvm-objdump -d %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: 0x401020 |
| // 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: 0x402000 |
| // CHECK-NEXT: Offset: 0x2000 |
| // CHECK-NEXT: Size: 20 |
| // CHECK-NEXT: Link: 0 |
| // CHECK-NEXT: Info: 0 |
| // CHECK-NEXT: AddressAlignment: 4 |
| // CHECK-NEXT: EntrySize: 0 |
| |
| // 0x12000 + got.plt.reserved(12) = 0x1200C |
| // 0x12000 + got.plt.reserved(12) + 4 = 0x12010 |
| // CHECK: Relocations [ |
| // CHECK-NEXT: Section ({{.*}}) .rel.plt { |
| // CHECK-NEXT: 0x40200C R_386_JUMP_SLOT bar 0x0 |
| // CHECK-NEXT: 0x402010 R_386_JUMP_SLOT zed 0x0 |
| // CHECK-NEXT: } |
| // CHECK-NEXT: ] |
| |
| // Unfortunately FileCheck can't do math, so we have to check for explicit |
| // values: |
| |
| // 16 is the size of PLT[0] |
| // (0x401010 + 16) - (0x401000 + 1) - 4 = 27 |
| // (0x401010 + 16) - (0x401005 + 1) - 4 = 22 |
| // (0x401020 + 16) - (0x40100a + 1) - 4 = 33 |
| |
| // DISASM: local: |
| // DISASM-NEXT: 401000: {{.*}} |
| // DISASM-NEXT: 401002: {{.*}} |
| // DISASM: _start: |
| // 0x401013 + 5 - 24 = 0x401000 |
| // DISASM-NEXT: 401004: e9 27 00 00 00 jmp 39 |
| // DISASM-NEXT: 401009: e9 22 00 00 00 jmp 34 |
| // DISASM-NEXT: 40100e: e9 2d 00 00 00 jmp 45 |
| // DISASM-NEXT: 401013: e9 e8 ff ff ff jmp -24 |
| |
| // 0x401010 - 0x40102b - 5 = -32 |
| // 0x401010 - 0x40103b - 5 = -48 |
| // 4202500 = 0x402004 = .got.plt (0x402000) + 4 |
| // 4202504 = 0x402008 = .got.plt (0x402000) + 8 |
| // 4202508 = 0x40200C = .got.plt (0x402000) + got.plt.reserved(12) |
| // 4202512 = 0x402010 = .got.plt (0x402000) + got.plt.reserved(12) + 4 |
| // DISASM: 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: bar@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: zed@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> |
| |
| // CHECKSHARED: Name: .plt |
| // CHECKSHARED-NEXT: Type: SHT_PROGBITS |
| // CHECKSHARED-NEXT: Flags [ |
| // CHECKSHARED-NEXT: SHF_ALLOC |
| // CHECKSHARED-NEXT: SHF_EXECINSTR |
| // CHECKSHARED-NEXT: ] |
| // CHECKSHARED-NEXT: Address: 0x1020 |
| // CHECKSHARED-NEXT: Offset: 0x1020 |
| // 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: 0x2000 |
| // CHECKSHARED-NEXT: Offset: 0x2000 |
| // CHECKSHARED-NEXT: Size: 20 |
| // CHECKSHARED-NEXT: Link: 0 |
| // CHECKSHARED-NEXT: Info: 0 |
| // CHECKSHARED-NEXT: AddressAlignment: 4 |
| // CHECKSHARED-NEXT: EntrySize: 0 |
| // CHECKSHARED-NEXT: } |
| |
| // 0x2000 + got.plt.reserved(12) = 0x200C |
| // 0x2000 + got.plt.reserved(12) + 4 = 0x2010 |
| // CHECKSHARED: Relocations [ |
| // CHECKSHARED-NEXT: Section ({{.*}}) .rel.plt { |
| // CHECKSHARED-NEXT: 0x200C R_386_JUMP_SLOT bar 0x0 |
| // CHECKSHARED-NEXT: 0x2010 R_386_JUMP_SLOT zed 0x0 |
| // CHECKSHARED-NEXT: } |
| // CHECKSHARED-NEXT: ] |
| |
| // DISASMSHARED: local: |
| // DISASMSHARED-NEXT: 1000: {{.*}} |
| // DISASMSHARED-NEXT: 1002: {{.*}} |
| // DISASMSHARED: _start: |
| // 0x1013 + 5 - 24 = 0x1000 |
| // DISASMSHARED-NEXT: 1004: e9 27 00 00 00 jmp 39 |
| // DISASMSHARED-NEXT: 1009: e9 22 00 00 00 jmp 34 |
| // DISASMSHARED-NEXT: 100e: e9 2d 00 00 00 jmp 45 |
| // DISASMSHARED-NEXT: 1013: e9 e8 ff ff ff jmp -24 |
| // DISASMSHARED-NEXT: Disassembly of section .plt: |
| // DISASMSHARED-NEXT: .plt: |
| // DISASMSHARED-NEXT: 1020: ff b3 04 20 00 00 pushl 8196(%ebx) |
| // DISASMSHARED-NEXT: 1026: ff a3 08 20 00 00 jmpl *8200(%ebx) |
| // DISASMSHARED-NEXT: 102c: 90 nop |
| // DISASMSHARED-NEXT: 102d: 90 nop |
| // DISASMSHARED-NEXT: 102e: 90 nop |
| // DISASMSHARED-NEXT: 102f: 90 nop |
| // DISASMSHARED-NEXT: 1030: ff a3 0c 20 00 00 jmpl *8204(%ebx) |
| // DISASMSHARED-NEXT: 1036: 68 00 00 00 00 pushl $0 |
| // DISASMSHARED-NEXT: 103b: e9 e0 ff ff ff jmp -32 <.plt> |
| // DISASMSHARED-NEXT: 1040: ff a3 10 20 00 00 jmpl *8208(%ebx) |
| // DISASMSHARED-NEXT: 1046: 68 08 00 00 00 pushl $8 |
| // DISASMSHARED-NEXT: 104b: e9 d0 ff ff ff jmp -48 <.plt> |
| |
| // DISASMPIE: Disassembly of section .plt: |
| // DISASMPIE-NEXT: .plt: |
| // DISASMPIE-NEXT: 1020: ff b3 04 20 00 00 pushl 8196(%ebx) |
| // DISASMPIE-NEXT: 1026: ff a3 08 20 00 00 jmpl *8200(%ebx) |
| // DISASMPIE-NEXT: 102c: 90 nop |
| // DISASMPIE-NEXT: 102d: 90 nop |
| // DISASMPIE-NEXT: 102e: 90 nop |
| // DISASMPIE-NEXT: 102f: 90 nop |
| // DISASMPIE-NEXT: 1030: ff a3 0c 20 00 00 jmpl *8204(%ebx) |
| // DISASMPIE-NEXT: 1036: 68 00 00 00 00 pushl $0 |
| // DISASMPIE-NEXT: 103b: e9 e0 ff ff ff jmp -32 <.plt> |
| // DISASMPIE-NEXT: 1040: ff a3 10 20 00 00 jmpl *8208(%ebx) |
| // DISASMPIE-NEXT: 1046: 68 08 00 00 00 pushl $8 |
| // DISASMPIE-NEXT: 104b: e9 d0 ff ff ff jmp -48 <.plt> |
| |
| local: |
| .long 0 |
| |
| .global _start |
| _start: |
| jmp bar@PLT |
| jmp bar@PLT |
| jmp zed@PLT |
| jmp local@plt |
