forked from OSchip/llvm-project
93 lines
3.2 KiB
ArmAsm
93 lines
3.2 KiB
ArmAsm
// REQUIRES: x86
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/// For non-preemptable ifunc, place ifunc PLT entries after regular PLT entries.
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// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o
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// RUN: ld.lld %t1.o --shared -soname=so -o %t.so
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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 %t.so %t.o -o %tout
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// RUN: llvm-objdump -d --no-show-raw-insn %tout | FileCheck %s --check-prefix=DISASM
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// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
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// RUN: llvm-readobj -r --dynamic-table %tout | FileCheck %s
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// Check that the IRELATIVE relocations are after the JUMP_SLOT in the plt
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// CHECK: Relocations [
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// CHECK-NEXT: Section (4) .rela.dyn {
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// CHECK-NEXT: 0x203458 R_X86_64_IRELATIVE - 0x2012D8
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// CHECK-NEXT: 0x203460 R_X86_64_IRELATIVE - 0x2012D9
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// CHECK-NEXT: }
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// CHECK-NEXT: Section (5) .rela.plt {
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// CHECK-NEXT: 0x203448 R_X86_64_JUMP_SLOT bar2 0x0
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// CHECK-NEXT: 0x203450 R_X86_64_JUMP_SLOT zed2 0x0
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// CHECK-NEXT: }
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// Check that .got.plt entries point back to PLT header
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// GOTPLT: Contents of section .got.plt:
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// GOTPLT-NEXT: 203430 40232000 00000000 00000000 00000000
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// GOTPLT-NEXT: 203440 00000000 00000000 06132000 00000000
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// GOTPLT-NEXT: 203450 16132000 00000000 00000000 00000000
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// GOTPLT-NEXT: 203460 00000000 00000000
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// Check that the PLTRELSZ tag does not include the IRELATIVE relocations
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// CHECK: DynamicSection [
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// CHECK: 0x0000000000000008 RELASZ 48 (bytes)
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// CHECK: 0x0000000000000002 PLTRELSZ 48 (bytes)
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// Check that a PLT header is written and the ifunc entries appear last
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// DISASM: Disassembly of section .text:
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// DISASM-EMPTY:
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// DISASM-NEXT: foo:
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// DISASM-NEXT: 2012d8: retq
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// DISASM: bar:
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// DISASM-NEXT: 2012d9: retq
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// DISASM: _start:
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// DISASM-NEXT: 2012da: callq 65
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// DISASM-NEXT: 2012df: callq 76
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// DISASM-NEXT: callq {{.*}} <bar2@plt>
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// DISASM-NEXT: callq {{.*}} <zed2@plt>
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// DISASM-EMPTY:
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// DISASM-NEXT: Disassembly of section .plt:
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// DISASM-EMPTY:
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// DISASM-NEXT: .plt:
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// DISASM-NEXT: 2012f0: pushq 8514(%rip)
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// DISASM-NEXT: 2012f6: jmpq *8516(%rip)
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// DISASM-NEXT: 2012fc: nopl (%rax)
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// DISASM-EMPTY:
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// DISASM-NEXT: bar2@plt:
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// DISASM-NEXT: 201300: jmpq *8514(%rip)
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// DISASM-NEXT: 201306: pushq $0
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// DISASM-NEXT: 20130b: jmp -32 <.plt>
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// DISASM-EMPTY:
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// DISASM-NEXT: zed2@plt:
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// DISASM-NEXT: 201310: jmpq *8506(%rip)
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// DISASM-NEXT: 201316: pushq $1
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// DISASM-NEXT: 20131b: jmp -48 <.plt>
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// DISASM-EMPTY:
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// DISASM-NEXT: Disassembly of section .iplt:
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// DISASM-EMPTY:
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// DISASM-NEXT: .iplt:
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// DISASM-NEXT: 201320: jmpq *8498(%rip)
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// DISASM-NEXT: 201326: pushq $0
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// DISASM-NEXT: 20132b: jmp -64 <.plt>
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// DISASM-NEXT: 201330: jmpq *8490(%rip)
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// DISASM-NEXT: 201336: pushq $1
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// DISASM-NEXT: 20133b: jmp -80 <.plt>
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.text
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.type foo STT_GNU_IFUNC
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.globl foo
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foo:
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ret
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.type bar STT_GNU_IFUNC
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.globl bar
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bar:
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ret
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.globl _start
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_start:
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call foo
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call bar
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call bar2
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call zed2
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