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

# REQUIRES: aarch64
# RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %s -o %t.o
# RUN: ld.lld -shared %t.o -o %tout
# RUN: llvm-objdump -D %tout | FileCheck %s
# RUN: llvm-readobj -r %tout | FileCheck %s --check-prefix=CHECK-RELOCS

# Test that when we take the address of a preemptible ifunc in a shared object
# we get R_AARCH64_GLOB_DAT to the symbol as it could be defined in another
# link unit and preempt our definition.
.text
.globl myfunc
.type myfunc,@gnu_indirect_function
myfunc:
 ret

.text
.globl main
.type main,@function
main:
 adrp x8, :got:myfunc
 ldr  x8, [x8, :got_lo12:myfunc]
 ret
# CHECK:   0000000000010004 main:
# x8 = 0x20000
# CHECK-NEXT:    10004: 88 00 00 90     adrp    x8, #65536
# x8 = 0x200a0 = .got entry for myfunc with R_AARCH64_GLOB_DAT
# CHECK-NEXT:    10008: 08 51 40 f9     ldr     x8, [x8, #160]
# CHECK-NEXT:    1000c: c0 03 5f d6     ret

# CHECK: Disassembly of section .got:
# CHECK-NEXT: 00000000000200a0 .got:

# CHECK-RELOCS: Relocations [
# CHECK-RELOCS-NEXT:   Section {{.*}} .rela.dyn {
# CHECK-RELOCS-NEXT:     0x200A0 R_AARCH64_GLOB_DAT myfunc 0x0
# CHECK-RELOCS-NEXT:   }
# CHECK-RELOCS-NEXT: ]