llvm-project/lld/test/ELF/aarch64-gnu-ifunc.s

140 lines
3.9 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %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
// REQUIRES: aarch64
// 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: 0
// CHECK-NEXT: AddressAlignment: 8
// CHECK-NEXT: EntrySize: 24
// CHECK-NEXT: }
// CHECK: Relocations [
// CHECK-NEXT: Section ({{.*}}) .rela.plt {
// CHECK-NEXT: 0x30000 R_AARCH64_IRELATIVE
// CHECK-NEXT: 0x30008 R_AARCH64_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: $x.0
// CHECK-NEXT: Value: 0x20000
// CHECK-NEXT: Size: 0
// CHECK-NEXT: Binding: Local
// CHECK-NEXT: Type: None
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: .text
// CHECK-NEXT: }
// CHECK-NEXT: Symbol {
// CHECK-NEXT: Name: __rela_iplt_end
// CHECK-NEXT: Value: 0x10188
// 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: 0x10158
// 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: 0x20008
// 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: 0x20004
// 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: 0x20000
// 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: ]
// 344 = 0x158
// 392 = 0x188
// DISASM: Disassembly of section .text:
// DISASM-NEXT: foo:
// DISASM-NEXT: 20000: c0 03 5f d6 ret
// DISASM: bar:
// DISASM-NEXT: 20004: c0 03 5f d6 ret
// DISASM: _start:
// DISASM-NEXT: 20008: 06 00 00 94 bl #24
// DISASM-NEXT: 2000c: 09 00 00 94 bl #36
// DISASM-NEXT: 20010: 42 60 05 91 add x2, x2, #344
// DISASM-NEXT: 20014: 42 20 06 91 add x2, x2, #392
// DISASM-NEXT: Disassembly of section .plt:
// DISASM-NEXT: .plt:
// DISASM-NEXT: 20020: 90 00 00 90 adrp x16, #65536
// DISASM-NEXT: 20024: 11 02 40 f9 ldr x17, [x16]
// DISASM-NEXT: 20028: 10 02 00 91 add x16, x16, #0
// DISASM-NEXT: 2002c: 20 02 1f d6 br x17
// DISASM-NEXT: 20030: 90 00 00 90 adrp x16, #65536
// DISASM-NEXT: 20034: 11 06 40 f9 ldr x17, [x16, #8]
// DISASM-NEXT: 20038: 10 22 00 91 add x16, x16, #8
// DISASM-NEXT: 2003c: 20 02 1f d6 br x17
.text
.type foo STT_GNU_IFUNC
.globl foo
foo:
ret
.type bar STT_GNU_IFUNC
.globl bar
bar:
ret
.globl _start
_start:
bl foo
bl bar
add x2, x2, :lo12:__rela_iplt_start
add x2, x2, :lo12:__rela_iplt_end