llvm-project/lld/test/ELF/gnu-ifunc.s

130 lines
3.6 KiB
ArmAsm

// REQUIRES: x86
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
// RUN: ld.lld -static %t.o -o %tout
// RUN: llvm-objdump -d %tout | FileCheck %s --check-prefix=DISASM
// RUN: llvm-readobj -r -symbols -sections %tout | FileCheck %s
// CHECK: Sections [
// CHECK: Section {
// CHECK: Index: 1
// CHECK-NEXT: Name: .rela.plt
// CHECK-NEXT: Type: SHT_RELA
// CHECK-NEXT: Flags [
// CHECK-NEXT: SHF_ALLOC
// CHECK-NEXT: ]
// CHECK-NEXT: Address: [[RELA:.*]]
// CHECK-NEXT: Offset: 0x158
// CHECK-NEXT: Size: 48
// CHECK-NEXT: Link: 0
// CHECK-NEXT: Info: [[GOTPLT:.*]]
// CHECK-NEXT: AddressAlignment: 8
// CHECK-NEXT: EntrySize: 24
// CHECK-NEXT: }
// CHECK: Index: [[GOTPLT]]
// CHECK-NEXT: Name: .got.plt
// CHECK: Relocations [
// CHECK-NEXT: Section ({{.*}}) .rela.plt {
// CHECK-NEXT: 0x202000 R_X86_64_IRELATIVE
// CHECK-NEXT: 0x202008 R_X86_64_IRELATIVE
// CHECK-NEXT: }
// CHECK-NEXT: ]
// CHECK: Symbols [
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name:
// CHECK-NEXT: Value: 0x0
// CHECK-NEXT: Size: 0
// CHECK-NEXT: Binding: Local
// CHECK-NEXT: Type: None
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: Undefined
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: __rela_iplt_end
// CHECK-NEXT: Value: 0x200188
// CHECK-NEXT: Size: 0
// CHECK-NEXT: Binding: Local
// CHECK-NEXT: Type: None
// CHECK-NEXT: Other [
// CHECK-NEXT: STV_HIDDEN
// CHECK-NEXT: ]
// CHECK-NEXT: Section: .rela.plt
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: __rela_iplt_start
// CHECK-NEXT: Value: [[RELA]]
// CHECK-NEXT: Size: 0
// CHECK-NEXT: Binding: Local
// CHECK-NEXT: Type: None
// CHECK-NEXT: Other [
// CHECK-NEXT: STV_HIDDEN
// CHECK-NEXT: ]
// CHECK-NEXT: Section: .rela.plt
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: _start
// CHECK-NEXT: Value: 0x201002
// CHECK-NEXT: Size: 0
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: None
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: .text
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: bar
// CHECK-NEXT: Value: 0x201001
// CHECK-NEXT: Size: 0
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: GNU_IFunc
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: .text
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: foo
// CHECK-NEXT: Value: 0x201000
// CHECK-NEXT: Size: 0
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: GNU_IFunc
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: .text
// CHECK-NEXT: }
// CHECK-NEXT: ]
// DISASM: Disassembly of section .text:
// DISASM-NEXT: foo:
// DISASM-NEXT: 201000: {{.*}} retq
// DISASM: bar:
// DISASM-NEXT: 201001: {{.*}} retq
// DISASM: _start:
// DISASM-NEXT: 201002: {{.*}} callq 25
// DISASM-NEXT: 201007: {{.*}} callq 36
// DISASM-NEXT: 20100c: {{.*}} movl $2097496, %edx
// DISASM-NEXT: 201011: {{.*}} movl $2097544, %edx
// DISASM-NEXT: 201016: {{.*}} movl $2097545, %edx
// DISASM-NEXT: Disassembly of section .plt:
// DISASM-NEXT: .plt:
// DISASM-NEXT: 201020: {{.*}} jmpq *4058(%rip)
// DISASM-NEXT: 201026: {{.*}} pushq $0
// DISASM-NEXT: 20102b: {{.*}} jmp -32 <_start+0xe>
// DISASM-NEXT: 201030: {{.*}} jmpq *4050(%rip)
// DISASM-NEXT: 201036: {{.*}} pushq $1
// DISASM-NEXT: 20103b: {{.*}} jmp -48 <_start+0xe>
.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
movl $__rela_iplt_start,%edx
movl $__rela_iplt_end,%edx
movl $__rela_iplt_end + 1,%edx