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| // REQUIRES: aarch64
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
// RUN: echo "SECTIONS { \
// RUN: .text1 0x10000 : { *(.text.01) *(.text.02) *(.text.03) } \
// RUN: .text2 0x8010000 : { *(.text.04) } } " > %t.script
// RUN: ld.lld --script %t.script -fix-cortex-a53-843419 -verbose %t.o -o %t2 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-PRINT %s
// RUN: llvm-objdump -triple=aarch64-linux-gnu -d %t2 | FileCheck %s
// %t2 is 128 Megabytes, so delete it early.
// RUN: rm %t2
// Test cases for Cortex-A53 Erratum 843419 that involve interactions with
// range extension thunks. Both erratum fixes and range extension thunks need
// precise address information and after creation alter address information.
.section .text.01, "ax", %progbits
.balign 4096
.globl _start
.type _start, %function
_start:
bl far_away
// Thunk to far_away, size 16-bytes goes here.
.section .text.02, "ax", %progbits
.space 4096 - 28
// Erratum sequence will only line up at address 0 modulo 0xffc when
// Thunk is inserted.
.section .text.03, "ax", %progbits
.globl t3_ff8_ldr
.type t3_ff8_ldr, %function
t3_ff8_ldr:
adrp x0, dat
ldr x1, [x1, #0]
ldr x0, [x0, :got_lo12:dat]
ret
// CHECK-PRINT: detected cortex-a53-843419 erratum sequence starting at 10FFC in unpatched output.
// CHECK: t3_ff8_ldr:
// CHECK-NEXT: 10ffc: 00 00 04 90 adrp x0, #134217728
// CHECK-NEXT: 11000: 21 00 40 f9 ldr x1, [x1]
// CHECK-NEXT: 11004: 02 00 00 14 b #8
// CHECK-NEXT: 11008: c0 03 5f d6 ret
// CHECK: __CortexA53843419_11004:
// CHECK-NEXT: 1100c: 00 04 40 f9 ldr x0, [x0, #8]
// CHECK-NEXT: 11010: fe ff ff 17 b #-8
.section .text.04, "ax", %progbits
.globl far_away
.type far_away, function
far_away:
ret
.section .data
.globl dat
dat: .quad 0
|