llvm-project/lld/test/ELF/x86-64-plt.s

81 lines
3.1 KiB
ArmAsm

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
# RUN: llvm-mc -filetype=obj -triple=x86_64 %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: ld.lld -shared %t.o %t2.so -o %t.so
# RUN: llvm-readelf -S -r %t | FileCheck %s --check-prefix=CHECK1
# RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s --check-prefixes=DISASM,DISASM1
# RUN: llvm-readelf -S -r %t.so | FileCheck %s --check-prefix=CHECK2
# RUN: llvm-objdump -d --no-show-raw-insn %t.so | FileCheck %s --check-prefixes=DISASM,DISASM2
# CHECK1: Name Type Address Off Size ES Flg Lk Inf Al
# CHECK1: .plt PROGBITS 00000000002012e0 0002e0 000030 00 AX 0 0 16
# CHECK1: .got.plt PROGBITS 00000000002033e0 0003e0 000028 00 WA 0 0 8
# CHECK1: Relocation section '.rela.plt' at offset {{.*}} contains 2 entries:
# CHECK1: 00000000002033f8 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 weak + 0
# CHECK1-NEXT: 0000000000203400 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 bar + 0
# CHECK2: Name Type Address Off Size ES Flg Lk Inf Al
# CHECK2: .plt PROGBITS 0000000000001310 000310 000030 00 AX 0 0 16
# CHECK2: .got.plt PROGBITS 0000000000003400 000400 000028 00 WA 0 0 8
# CHECK2: Relocation section '.rela.plt' at offset {{.*}} contains 2 entries:
# CHECK2: 0000000000003418 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 weak + 0
# CHECK2-NEXT: 0000000000003420 {{.*}} R_X86_64_JUMP_SLOT 0000000000000000 bar + 0
# DISASM: <_start>:
# DISASM-NEXT: callq {{.*}} <local>
# DISASM-NEXT: callq {{.*}} <bar@plt>
# DISASM-NEXT: jmp {{.*}} <bar@plt>
# DISASM-NEXT: jmp {{.*}} <weak@plt>
# DISASM1: Disassembly of section .plt:
# DISASM1-EMPTY:
# DISASM1-NEXT: <.plt>:
# DISASM1-NEXT: 2012e0: pushq 8450(%rip) # 0x2033e8
# DISASM1-NEXT: jmpq *8452(%rip) # 0x2033f0
# DISASM1-NEXT: nopl (%rax)
# DISASM1-EMPTY:
# DISASM1-NEXT: <weak@plt>:
# DISASM1-NEXT: 2012f0: jmpq *8450(%rip) # 0x2033f8
# DISASM1-NEXT: pushq $0
# DISASM1-NEXT: jmp 0x2012e0 <.plt>
# DISASM1-EMPTY:
# DISASM1-NEXT: <bar@plt>:
# DISASM1-NEXT: 201300: jmpq *8442(%rip) # 0x203400
# DISASM1-NEXT: pushq $1
# DISASM1-NEXT: jmp 0x2012e0 <.plt>
# DISASM1-NOT: {{.}}
# DISASM2: Disassembly of section .plt:
# DISASM2-EMPTY:
# DISASM2-NEXT: <.plt>:
# DISASM2-NEXT: 1310: pushq 8434(%rip) # 0x3408
# DISASM2-NEXT: jmpq *8436(%rip) # 0x3410
# DISASM2-NEXT: nopl (%rax)
# DISASM2-EMPTY:
# DISASM2-NEXT: <weak@plt>:
# DISASM2-NEXT: 1320: jmpq *8434(%rip) # 0x3418
# DISASM2-NEXT: pushq $0
# DISASM2-NEXT: jmp 0x1310 <.plt>
# DISASM2-EMPTY:
# DISASM2-NEXT: <bar@plt>:
# DISASM2-NEXT: 1330: jmpq *8426(%rip) # 0x3420
# DISASM2-NEXT: pushq $1
# DISASM2-NEXT: jmp 0x1310 <.plt>
# DISASM2-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