// 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 0x10010000 : { *(.text.04) } } " > %t.script // RUN: ld.lld --script %t.script -fix-cortex-a53-843419 -verbose %t.o -o %t2 \ // RUN: 2>&1 | FileCheck -check-prefix=CHECK-PRINT %s // RUN: llvm-objdump --no-print-imm-hex --no-show-raw-insn --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 10FF8 in unpatched output. // CHECK: 0000000000010ff8 : // CHECK-NEXT: adrp x0, 0x10010000 // CHECK-NEXT: ldr x1, [x1] // CHECK-NEXT: b 0x11008 // CHECK-NEXT: ret // CHECK: 0000000000011008 <__CortexA53843419_11000>: // CHECK-NEXT: ldr x0, [x0, #8] // CHECK-NEXT: b 0x11004 .section .text.04, "ax", %progbits .globl far_away .type far_away, function far_away: ret .section .data .globl dat dat: .quad 0