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67 lines
2.3 KiB
ArmAsm
67 lines
2.3 KiB
ArmAsm
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// REQUIRES: x86
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
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// RUN: ld.lld --hash-style=sysv --shared -o %t.so %t.o
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// RUN: llvm-objdump -d %t.so | FileCheck %s --check-prefix=DISASM
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// RUN: llvm-readobj -r %t.so | FileCheck %s
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// Check that an IRELATIVE relocation is used for a non-preemptible ifunc
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// handler and a JUMP_SLOT is used for a preemptible ifunc
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// DISASM: Disassembly of section .text:
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// DISASM-NEXT: fct:
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// DISASM-NEXT: 1000: c3 retq
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// DISASM: fct2:
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// DISASM-NEXT: 1001: c3 retq
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// DISASM: f1:
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// DISASM-NEXT: 1002: e8 49 00 00 00 callq 73
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// DISASM-NEXT: 1007: e8 24 00 00 00 callq 36
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// DISASM-NEXT: 100c: e8 2f 00 00 00 callq 47
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// DISASM-NEXT: 1011: c3 retq
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// DISASM: f2:
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// DISASM-NEXT: 1012: c3 retq
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// DISASM-NEXT: Disassembly of section .plt:
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// DISASM-NEXT: .plt:
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// DISASM-NEXT: 1020: ff 35 e2 0f 00 00 pushq 4066(%rip)
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// DISASM-NEXT: 1026: ff 25 e4 0f 00 00 jmpq *4068(%rip)
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// DISASM-NEXT: 102c: 0f 1f 40 00 nopl (%rax)
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// DISASM-NEXT: 1030: ff 25 e2 0f 00 00 jmpq *4066(%rip)
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// DISASM-NEXT: 1036: 68 00 00 00 00 pushq $0
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// DISASM-NEXT: 103b: e9 e0 ff ff ff jmp -32 <.plt>
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// DISASM-NEXT: 1040: ff 25 da 0f 00 00 jmpq *4058(%rip)
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// DISASM-NEXT: 1046: 68 01 00 00 00 pushq $1
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// DISASM-NEXT: 104b: e9 d0 ff ff ff jmp -48 <.plt>
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// DISASM-NEXT: 1050: ff 25 d2 0f 00 00 jmpq *4050(%rip)
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// DISASM-NEXT: 1056: 68 00 00 00 00 pushq $0
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// DISASM-NEXT: 105b: e9 e0 ff ff ff jmp -32 <.plt+0x20>
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// CHECK: Relocations [
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// CHECK-NEXT: Section (4) .rela.plt {
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// CHECK-NEXT: 0x2018 R_X86_64_JUMP_SLOT fct2 0x0
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// CHECK-NEXT: 0x2020 R_X86_64_JUMP_SLOT f2 0x0
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// CHECK-NEXT: 0x2028 R_X86_64_IRELATIVE - 0x1000
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// Hidden expect IRELATIVE
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.globl fct
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.hidden fct
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.type fct, STT_GNU_IFUNC
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fct:
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ret
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// Not hidden expect JUMP_SLOT
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.globl fct2
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.type fct2, STT_GNU_IFUNC
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fct2:
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ret
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.globl f1
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.type f1, @function
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f1:
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call fct
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call fct2
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call f2@PLT
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ret
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.globl f2
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.type f2, @function
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f2:
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ret
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