187 lines
6.5 KiB
ArmAsm
187 lines
6.5 KiB
ArmAsm
// REQUIRES: x86
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// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o
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// RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %p/Inputs/shared.s -o %t2.o
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// RUN: ld.lld -shared %t2.o -o %t2.so
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// RUN: ld.lld %t.o %t2.so -o %t
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// RUN: llvm-readobj -S -r %t | FileCheck %s
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// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
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// RUN: ld.lld -shared %t.o %t2.so -o %t
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// RUN: llvm-readobj -S -r %t | FileCheck --check-prefix=CHECKSHARED %s
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// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASMSHARED %s
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// RUN: ld.lld -pie %t.o %t2.so -o %t
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// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASMPIE %s
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// CHECK: Name: .plt
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// CHECK-NEXT: Type: SHT_PROGBITS
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: SHF_ALLOC
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// CHECK-NEXT: SHF_EXECINSTR
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x401020
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 48
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 16
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// CHECK: Name: .got.plt
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// CHECK-NEXT: Type: SHT_PROGBITS
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: SHF_ALLOC
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// CHECK-NEXT: SHF_WRITE
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x403000
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// CHECK-NEXT: Offset: 0x3000
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// CHECK-NEXT: Size: 20
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 4
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// CHECK-NEXT: EntrySize: 0
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// 0x12000 + got.plt.reserved(12) = 0x1200C
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// 0x12000 + got.plt.reserved(12) + 4 = 0x12010
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// CHECK: Relocations [
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// CHECK-NEXT: Section ({{.*}}) .rel.plt {
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// CHECK-NEXT: 0x40300C R_386_JUMP_SLOT bar 0x0
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// CHECK-NEXT: 0x403010 R_386_JUMP_SLOT zed 0x0
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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// Unfortunately FileCheck can't do math, so we have to check for explicit
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// values:
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// 16 is the size of PLT[0]
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// (0x401010 + 16) - (0x401000 + 1) - 4 = 27
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// (0x401010 + 16) - (0x401005 + 1) - 4 = 22
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// (0x401020 + 16) - (0x40100a + 1) - 4 = 33
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// DISASM: local:
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// DISASM-NEXT: 401000: {{.*}}
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// DISASM-NEXT: 401002: {{.*}}
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// DISASM: _start:
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// 0x401013 + 5 - 24 = 0x401000
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// DISASM-NEXT: 401004: e9 27 00 00 00 jmp 39
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// DISASM-NEXT: 401009: e9 22 00 00 00 jmp 34
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// DISASM-NEXT: 40100e: e9 2d 00 00 00 jmp 45
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// DISASM-NEXT: 401013: e9 e8 ff ff ff jmp -24
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// 0x401010 - 0x40102b - 5 = -32
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// 0x401010 - 0x40103b - 5 = -48
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// 4206596 = 0x403004 = .got.plt (0x403000) + 4
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// 4206600 = 0x403008 = .got.plt (0x403000) + 8
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// 4206604 = 0x40300C = .got.plt (0x403000) + got.plt.reserved(12)
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// 4206608 = 0x403010 = .got.plt (0x403000) + got.plt.reserved(12) + 4
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// DISASM: Disassembly of section .plt:
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// DISASM-EMPTY:
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// DISASM-NEXT: .plt:
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// DISASM-NEXT: 401020: ff 35 04 30 40 00 pushl 4206596
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// DISASM-NEXT: 401026: ff 25 08 30 40 00 jmpl *4206600
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// DISASM-NEXT: 40102c: 90 nop
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// DISASM-NEXT: 40102d: 90 nop
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// DISASM-NEXT: 40102e: 90 nop
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// DISASM-NEXT: 40102f: 90 nop
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// DISASM-EMPTY:
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// DISASM-NEXT: bar@plt:
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// DISASM-NEXT: 401030: ff 25 0c 30 40 00 jmpl *4206604
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// DISASM-NEXT: 401036: 68 00 00 00 00 pushl $0
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// DISASM-NEXT: 40103b: e9 e0 ff ff ff jmp -32 <.plt>
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// DISASM-EMPTY:
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// DISASM-NEXT: zed@plt:
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// DISASM-NEXT: 401040: ff 25 10 30 40 00 jmpl *4206608
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// DISASM-NEXT: 401046: 68 08 00 00 00 pushl $8
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// DISASM-NEXT: 40104b: e9 d0 ff ff ff jmp -48 <.plt>
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// CHECKSHARED: Name: .plt
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// CHECKSHARED-NEXT: Type: SHT_PROGBITS
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// CHECKSHARED-NEXT: Flags [
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// CHECKSHARED-NEXT: SHF_ALLOC
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// CHECKSHARED-NEXT: SHF_EXECINSTR
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// CHECKSHARED-NEXT: ]
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// CHECKSHARED-NEXT: Address: 0x1020
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// CHECKSHARED-NEXT: Offset: 0x1020
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// CHECKSHARED-NEXT: Size: 48
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// CHECKSHARED-NEXT: Link: 0
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// CHECKSHARED-NEXT: Info: 0
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// CHECKSHARED-NEXT: AddressAlignment: 16
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// CHECKSHARED-NEXT: EntrySize: 0
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// CHECKSHARED-NEXT: }
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// CHECKSHARED: Name: .got.plt
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// CHECKSHARED-NEXT: Type: SHT_PROGBITS
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// CHECKSHARED-NEXT: Flags [
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// CHECKSHARED-NEXT: SHF_ALLOC
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// CHECKSHARED-NEXT: SHF_WRITE
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// CHECKSHARED-NEXT: ]
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// CHECKSHARED-NEXT: Address: 0x3000
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// CHECKSHARED-NEXT: Offset: 0x3000
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// CHECKSHARED-NEXT: Size: 20
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// CHECKSHARED-NEXT: Link: 0
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// CHECKSHARED-NEXT: Info: 0
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// CHECKSHARED-NEXT: AddressAlignment: 4
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// CHECKSHARED-NEXT: EntrySize: 0
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// CHECKSHARED-NEXT: }
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// 0x3000 + got.plt.reserved(12) = 0x300C
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// 0x3000 + got.plt.reserved(12) + 4 = 0x3010
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// CHECKSHARED: Relocations [
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// CHECKSHARED-NEXT: Section ({{.*}}) .rel.plt {
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// CHECKSHARED-NEXT: 0x300C R_386_JUMP_SLOT bar 0x0
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// CHECKSHARED-NEXT: 0x3010 R_386_JUMP_SLOT zed 0x0
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// CHECKSHARED-NEXT: }
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// CHECKSHARED-NEXT: ]
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// DISASMSHARED: local:
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// DISASMSHARED-NEXT: 1000: {{.*}}
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// DISASMSHARED-NEXT: 1002: {{.*}}
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// DISASMSHARED: _start:
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// 0x1013 + 5 - 24 = 0x1000
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// DISASMSHARED-NEXT: 1004: e9 27 00 00 00 jmp 39
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// DISASMSHARED-NEXT: 1009: e9 22 00 00 00 jmp 34
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// DISASMSHARED-NEXT: 100e: e9 2d 00 00 00 jmp 45
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// DISASMSHARED-NEXT: 1013: e9 e8 ff ff ff jmp -24
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// DISASMSHARED-EMPTY:
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// DISASMSHARED-NEXT: Disassembly of section .plt:
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// DISASMSHARED-EMPTY:
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// DISASMSHARED-NEXT: .plt:
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// DISASMSHARED-NEXT: 1020: ff b3 04 00 00 00 pushl 4(%ebx)
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// DISASMSHARED-NEXT: 1026: ff a3 08 00 00 00 jmpl *8(%ebx)
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// DISASMSHARED-NEXT: 102c: 90 nop
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// DISASMSHARED-NEXT: 102d: 90 nop
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// DISASMSHARED-NEXT: 102e: 90 nop
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// DISASMSHARED-NEXT: 102f: 90 nop
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// DISASMSHARED: bar@plt:
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// DISASMSHARED-NEXT: 1030: ff a3 0c 00 00 00 jmpl *12(%ebx)
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// DISASMSHARED-NEXT: 1036: 68 00 00 00 00 pushl $0
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// DISASMSHARED-NEXT: 103b: e9 e0 ff ff ff jmp -32 <.plt>
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// DISASMSHARED: zed@plt:
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// DISASMSHARED-NEXT: 1040: ff a3 10 00 00 00 jmpl *16(%ebx)
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// DISASMSHARED-NEXT: 1046: 68 08 00 00 00 pushl $8
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// DISASMSHARED-NEXT: 104b: e9 d0 ff ff ff jmp -48 <.plt>
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// DISASMPIE: Disassembly of section .plt:
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// DISASMPIE-EMPTY:
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// DISASMPIE-NEXT: .plt:
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// DISASMPIE-NEXT: 1020: ff b3 04 00 00 00 pushl 4(%ebx)
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// DISASMPIE-NEXT: 1026: ff a3 08 00 00 00 jmpl *8(%ebx)
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// DISASMPIE-NEXT: 102c: 90 nop
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// DISASMPIE-NEXT: 102d: 90 nop
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// DISASMPIE-NEXT: 102e: 90 nop
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// DISASMPIE-NEXT: 102f: 90 nop
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// DISASMPIE: bar@plt:
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// DISASMPIE-NEXT: 1030: ff a3 0c 00 00 00 jmpl *12(%ebx)
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// DISASMPIE-NEXT: 1036: 68 00 00 00 00 pushl $0
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// DISASMPIE-NEXT: 103b: e9 e0 ff ff ff jmp -32 <.plt>
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// DISASMPIE: zed@plt:
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// DISASMPIE-NEXT: 1040: ff a3 10 00 00 00 jmpl *16(%ebx)
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// DISASMPIE-NEXT: 1046: 68 08 00 00 00 pushl $8
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// DISASMPIE-NEXT: 104b: e9 d0 ff ff ff jmp -48 <.plt>
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local:
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.long 0
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.global _start
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_start:
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jmp bar@PLT
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jmp bar@PLT
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jmp zed@PLT
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jmp local@plt
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