forked from OSchip/llvm-project
93 lines
3.2 KiB
ArmAsm
93 lines
3.2 KiB
ArmAsm
// REQUIRES: x86
|
|
|
|
/// For non-preemptable ifunc, place ifunc PLT entries after regular PLT entries.
|
|
|
|
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %S/Inputs/shared2-x86-64.s -o %t1.o
|
|
// RUN: ld.lld %t1.o --shared -soname=so -o %t.so
|
|
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
|
|
// RUN: ld.lld --hash-style=sysv %t.so %t.o -o %tout
|
|
// RUN: llvm-objdump -d --no-show-raw-insn %tout | FileCheck %s --check-prefix=DISASM
|
|
// RUN: llvm-objdump -s %tout | FileCheck %s --check-prefix=GOTPLT
|
|
// RUN: llvm-readobj -r --dynamic-table %tout | FileCheck %s
|
|
|
|
/// Check that the PLTRELSZ tag does not include the IRELATIVE relocations
|
|
// CHECK: DynamicSection [
|
|
// CHECK: 0x0000000000000008 RELASZ 48 (bytes)
|
|
// CHECK: 0x0000000000000002 PLTRELSZ 48 (bytes)
|
|
|
|
// Check that the IRELATIVE relocations are after the JUMP_SLOT in the plt
|
|
// CHECK: Relocations [
|
|
// CHECK-NEXT: Section (4) .rela.dyn {
|
|
// CHECK-NEXT: 0x203458 R_X86_64_IRELATIVE - 0x2012D8
|
|
// CHECK-NEXT: 0x203460 R_X86_64_IRELATIVE - 0x2012D9
|
|
// CHECK-NEXT: }
|
|
// CHECK-NEXT: Section (5) .rela.plt {
|
|
// CHECK-NEXT: 0x203448 R_X86_64_JUMP_SLOT bar2 0x0
|
|
// CHECK-NEXT: 0x203450 R_X86_64_JUMP_SLOT zed2 0x0
|
|
// CHECK-NEXT: }
|
|
|
|
// Check that .got.plt entries point back to PLT header
|
|
// GOTPLT: Contents of section .got.plt:
|
|
// GOTPLT-NEXT: 203430 40232000 00000000 00000000 00000000
|
|
// GOTPLT-NEXT: 203440 00000000 00000000 06132000 00000000
|
|
// GOTPLT-NEXT: 203450 16132000 00000000 00000000 00000000
|
|
// GOTPLT-NEXT: 203460 00000000 00000000
|
|
|
|
// Check that a PLT header is written and the ifunc entries appear last
|
|
// DISASM: Disassembly of section .text:
|
|
// DISASM-EMPTY:
|
|
// DISASM-NEXT: <foo>:
|
|
// DISASM-NEXT: 2012d8: retq
|
|
// DISASM: <bar>:
|
|
// DISASM-NEXT: 2012d9: retq
|
|
// DISASM: <_start>:
|
|
// DISASM-NEXT: 2012da: callq 0x201320
|
|
// DISASM-NEXT: 2012df: callq 0x201330
|
|
// DISASM-NEXT: callq {{.*}} <bar2@plt>
|
|
// DISASM-NEXT: callq {{.*}} <zed2@plt>
|
|
// DISASM-EMPTY:
|
|
// DISASM-NEXT: Disassembly of section .plt:
|
|
// DISASM-EMPTY:
|
|
// DISASM-NEXT: <.plt>:
|
|
// DISASM-NEXT: 2012f0: pushq 8514(%rip)
|
|
// DISASM-NEXT: 2012f6: jmpq *8516(%rip)
|
|
// DISASM-NEXT: 2012fc: nopl (%rax)
|
|
// DISASM-EMPTY:
|
|
// DISASM-NEXT: <bar2@plt>:
|
|
// DISASM-NEXT: 201300: jmpq *8514(%rip)
|
|
// DISASM-NEXT: 201306: pushq $0
|
|
// DISASM-NEXT: 20130b: jmp 0x2012f0 <.plt>
|
|
// DISASM-EMPTY:
|
|
// DISASM-NEXT: <zed2@plt>:
|
|
// DISASM-NEXT: 201310: jmpq *8506(%rip)
|
|
// DISASM-NEXT: 201316: pushq $1
|
|
// DISASM-NEXT: 20131b: jmp 0x2012f0 <.plt>
|
|
// DISASM-EMPTY:
|
|
// DISASM-NEXT: Disassembly of section .iplt:
|
|
// DISASM-EMPTY:
|
|
// DISASM-NEXT: <.iplt>:
|
|
// DISASM-NEXT: 201320: jmpq *8498(%rip)
|
|
// DISASM-NEXT: 201326: pushq $0
|
|
// DISASM-NEXT: 20132b: jmp 0x2012f0 <.plt>
|
|
// DISASM-NEXT: 201330: jmpq *8490(%rip)
|
|
// DISASM-NEXT: 201336: pushq $1
|
|
// DISASM-NEXT: 20133b: jmp 0x2012f0 <.plt>
|
|
|
|
.text
|
|
.type foo STT_GNU_IFUNC
|
|
.globl foo
|
|
foo:
|
|
ret
|
|
|
|
.type bar STT_GNU_IFUNC
|
|
.globl bar
|
|
bar:
|
|
ret
|
|
|
|
.globl _start
|
|
_start:
|
|
call foo
|
|
call bar
|
|
call bar2
|
|
call zed2
|