// 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: 0x11020 // 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: 0x12000 // 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: 0x1200C R_386_JUMP_SLOT bar 0x0 // CHECK-NEXT: 0x12010 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] // (0x11010 + 16) - (0x11000 + 1) - 4 = 27 // (0x11010 + 16) - (0x11005 + 1) - 4 = 22 // (0x11020 + 16) - (0x1100a + 1) - 4 = 33 // DISASM: local: // DISASM-NEXT: 11000: {{.*}} // DISASM-NEXT: 11002: {{.*}} // DISASM: _start: // 0x11013 + 5 - 24 = 0x11000 // DISASM-NEXT: 11004: e9 27 00 00 00 jmp 39 // DISASM-NEXT: 11009: e9 22 00 00 00 jmp 34 // DISASM-NEXT: 1100e: e9 2d 00 00 00 jmp 45 // DISASM-NEXT: 11013: e9 e8 ff ff ff jmp -24 // 0x11010 - 0x1102b - 5 = -32 // 0x11010 - 0x1103b - 5 = -48 // 77828 = 0x13004 = .got.plt (0x13000) + 4 // 77832 = 0x13008 = .got.plt (0x13000) + 8 // 77836 = 0x1300C = .got.plt (0x13000) + got.plt.reserved(12) // 77840 = 0x13010 = .got.plt (0x13000) + got.plt.reserved(12) + 4 // DISASM: Disassembly of section .plt: // DISASM-NEXT: .plt: // DISASM-NEXT: 11020: ff 35 04 20 01 00 pushl 73732 // DISASM-NEXT: 11026: ff 25 08 20 01 00 jmpl *73736 // DISASM-NEXT: 1102c: 90 nop // DISASM-NEXT: 1102d: 90 nop // DISASM-NEXT: 1102e: 90 nop // DISASM-NEXT: 1102f: 90 nop // DISASM-NEXT: 11030: ff 25 0c 20 01 00 jmpl *73740 // DISASM-NEXT: 11036: 68 00 00 00 00 pushl $0 // DISASM-NEXT: 1103b: e9 e0 ff ff ff jmp -32 <.plt> // DISASM-NEXT: 11040: ff 25 10 20 01 00 jmpl *73744 // DISASM-NEXT: 11046: 68 08 00 00 00 pushl $8 // DISASM-NEXT: 1104b: 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