# REQUIRES: aarch64 # RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %s -o %t.o # RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux-gnu %p/Inputs/aarch64-addrifunc.s -o %t1.o # RUN: ld.lld --shared --soname=t1.so %t1.o -o %t1.so # RUN: ld.lld --pie %t1.so %t.o -o %t # RUN: llvm-objdump -d --no-show-raw-insn --mattr=+bti --triple=aarch64-linux-gnu %t | FileCheck %s # When the address of an ifunc is taken using a non-got reference which clang # can do, LLD exports a canonical PLT entry that may have its address taken so # we must use bti c. # CHECK: Disassembly of section .plt: # CHECK: 0000000000010380 <.plt>: # CHECK-NEXT: 10380: bti c # CHECK-NEXT: stp x16, x30, [sp, #-16]! # CHECK-NEXT: adrp x16, #131072 # CHECK-NEXT: ldr x17, [x16, #1288] # CHECK-NEXT: add x16, x16, #1288 # CHECK-NEXT: br x17 # CHECK-NEXT: nop # CHECK-NEXT: nop # CHECK: 00000000000103a0 : # CHECK-NEXT: 103a0: bti c # CHECK-NEXT: adrp x16, #131072 # CHECK-NEXT: ldr x17, [x16, #1296] # CHECK-NEXT: add x16, x16, #1296 # CHECK-NEXT: br x17 # CHECK-NEXT: nop # CHECK-EMPTY: # CHECK: Disassembly of section .iplt: # CHECK-EMPTY: # CHECK-NEXT: 00000000000103c0 : # CHECK-NEXT: 103c0: bti c # CHECK-NEXT: adrp x16, #131072 # CHECK-NEXT: ldr x17, [x16, #1304] # CHECK-NEXT: add x16, x16, #1304 # CHECK-NEXT: br x17 # CHECK-NEXT: nop .section ".note.gnu.property", "a" .long 4 .long 0x10 .long 0x5 .asciz "GNU" .long 0xc0000000 // GNU_PROPERTY_AARCH64_FEATURE_1_AND .long 4 .long 1 // GNU_PROPERTY_AARCH64_FEATURE_1_BTI .long 0 .text .globl myfunc .type myfunc,@gnu_indirect_function myfunc: ret .globl func1 .text .globl _start .type _start, %function _start: bl func1 adrp x8, myfunc add x8, x8, :lo12:myfunc ret