hanchenye-llvm-project/lld/test/elf2/plt.s

60 lines
1.8 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
// RUN: lld -flavor gnu2 -shared %t2.o -o %t2.so
// RUN: lld -flavor gnu2 %t.o %t2.so -o %t
// RUN: llvm-readobj -s -r %t | FileCheck %s
// RUN: llvm-objdump -d %t | FileCheck --check-prefix=DISASM %s
// REQUIRES: x86
// CHECK: Name: .plt
// CHECK-NEXT: Type: SHT_PROGBITS
// CHECK-NEXT: Flags [
// CHECK-NEXT: SHF_ALLOC
// CHECK-NEXT: SHF_EXECINSTR
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x16000
// CHECK-NEXT: Offset:
// CHECK-NEXT: Size: 24
// CHECK-NEXT: Link: 0
// CHECK-NEXT: Info: 0
// CHECK-NEXT: AddressAlignment: 16
// CHECK: Relocations [
// CHECK-NEXT: Section ({{.*}}) .rela.dyn {
// CHECK-NEXT: 0x15000 R_X86_64_GLOB_DAT bar 0x0
// CHECK-NEXT: 0x15008 R_X86_64_GLOB_DAT zed 0x0
// CHECK-NEXT: 0x15010 R_X86_64_GLOB_DAT _start 0x0
// CHECK-NEXT: }
// CHECK-NEXT: ]
// Unfortunately FileCheck can't do math, so we have to check for explicit
// values:
// 0x16000 - (0x11000 + 1) - 4 = 20475
// 0x16000 - (0x11005 + 1) - 4 = 20470
// 0x16008 - (0x1100a + 1) - 4 = 20473
// DISASM: _start:
// DISASM-NEXT: 11000: e9 fb 4f 00 00 jmp 20475
// DISASM-NEXT: 11005: e9 f6 4f 00 00 jmp 20470
// DISASM-NEXT: 1100a: e9 f9 4f 00 00 jmp 20473
// 0x15000 - 0x16006 = -4102
// 0x15008 - 0x1600e = -4102
// DISASM: Disassembly of section .plt:
// DISASM-NEXT: .plt:
// DISASM-NEXT: 16000: ff 25 fa ef ff ff jmpq *-4102(%rip)
// DISASM-NEXT: 16006: 90 nop
// DISASM-NEXT: 16007: 90 nop
// DISASM-NEXT: 16008: ff 25 fa ef ff ff jmpq *-4102(%rip)
// DISASM-NEXT: 1600e: 90 nop
// DISASM-NEXT: 1600f: 90 nop
.global _start
_start:
jmp bar@PLT
jmp bar@PLT
jmp zed@PLT
jmp _start@plt