llvm-project/lld/test/ELF/x86-x32-plt.s

53 lines
1.7 KiB
ArmAsm

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-gnux32 %s -o %t.o
# RUN: llvm-mc -filetype=obj -triple=x86_64-gnux32 %p/Inputs/shared.s -o %t2.o
# RUN: ld.lld -shared -soname=t2 %t2.o -o %t2.so
# RUN: ld.lld %t.o %t2.so -o %t
# RUN: llvm-readelf -S -r %t | FileCheck %s
# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s --check-prefixes=DISASM
# CHECK: Name Type Address Off Size ES Flg Lk Inf Al
# CHECK: .plt PROGBITS 002011e0 0001e0 000030 00 AX 0 0 16
# CHECK: .got.plt PROGBITS 00203278 000278 000028 00 WA 0 0 8
# CHECK: Relocation section '.rela.plt' at offset {{.*}} contains 2 entries:
# CHECK: 00203290 {{.*}} R_X86_64_JUMP_SLOT 00000000 bar + 0
# CHECK-NEXT: 00203298 {{.*}} R_X86_64_JUMP_SLOT 00000000 weak + 0
# DISASM: <_start>:
# DISASM-NEXT: callq {{.*}} <local>
# DISASM-NEXT: callq {{.*}} <bar@plt>
# DISASM-NEXT: jmp {{.*}} <bar@plt>
# DISASM-NEXT: jmp {{.*}} <weak@plt>
# DISASM: Disassembly of section .plt:
# DISASM-EMPTY:
# DISASM-NEXT: <.plt>:
# DISASM-NEXT: 2011e0: pushq 8346(%rip) # 0x203280
# DISASM-NEXT: jmpq *8348(%rip) # 0x203288
# DISASM-NEXT: nopl (%rax)
# DISASM-EMPTY:
# DISASM-NEXT: <bar@plt>:
# DISASM-NEXT: 2011f0: jmpq *8346(%rip) # 0x203290
# DISASM-NEXT: pushq $0
# DISASM-NEXT: jmp 0x2011e0 <.plt>
# DISASM-EMPTY:
# DISASM-NEXT: <weak@plt>:
# DISASM-NEXT: 201200: jmpq *8338(%rip) # 0x203298
# DISASM-NEXT: pushq $1
# DISASM-NEXT: jmp 0x2011e0 <.plt>
# DISASM-NOT: {{.}}
.global _start
.weak weak
_start:
call local
call bar
jmp bar@plt
jmp weak
## foo is local and non-preemptale, no PLT is generated.
local:
ret