aarch64-cortex-a53-843419-thunk-align.s
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// REQUIRES: aarch64
// RUN: llvm-mc -filetype=obj -triple=aarch64-none-linux %s -o %t.o
// RUN: echo "SECTIONS { \
// RUN: .text 0x10000 : { \
// RUN: *(.text.01) ; \
// RUN: . += 0x8000000 ; \
// RUN: *(.text.02) } \
// RUN: .foo : { *(.foo_sec) } } " > %t.script
// RUN: ld.lld -pie --fix-cortex-a53-843419 --script=%t.script %t.o -o %t2
// RUN: llvm-objdump --no-show-raw-insn --triple=aarch64-linux-gnu -d %t2
/// %t2 is > 128 Megabytes, so delete it early.
// RUN: rm %t2
/// Test case that for an OutputSection larger than the ThunkSectionSpacing
/// --fix-cortex-a53-843419 will cause the size of the ThunkSection to be
/// rounded up to the nearest 4KiB
.section .text.01, "ax", %progbits
.balign 4096
.globl _start
.type _start, %function
_start:
/// Range extension thunk needed, due to linker script
bl far_away
.space 4096 - 12
/// Erratum sequence
.globl t3_ff8_ldr
.type t3_ff8_ldr, %function
t3_ff8_ldr:
adrp x0, dat
ldr x1, [x1, #0]
ldr x0, [x0, :lo12:dat]
ret
/// Expect thunk and patch to be inserted here
// CHECK: 0000000000011008 __AArch64ADRPThunk_far_away:
// CHECK-NEXT: 11008: adrp x16, #134221824
// CHECK-NEXT: add x16, x16, #16
// CHECK-NEXT: br x16
// CHECK: 0000000000012008 __CortexA53843419_11000:
// CHECK-NEXT: 12008: ldr x0, [x0, #168]
// CHECK-NEXT: b #-4104 <t3_ff8_ldr+0xc>
.section .text.02, "ax", %progbits
.globl far_away
.type far_away, function
far_away:
bl _start
ret
/// Expect thunk for _start not to have size rounded up to 4KiB as it is at
/// the end of the OutputSection
// CHECK: 0000000008012010 far_away:
// CHECK-NEXT: 8012010: bl #8
// CHECK-NEXT: ret
// CHECK: 0000000008012018 __AArch64ADRPThunk__start:
// CHECK-NEXT: 8012018: adrp x16, #-134225920
// CHECK-NEXT: add x16, x16, #0
// CHECK-NEXT: br x16
// CHECK: 0000000008012024 foo:
// CHECK-NEXT: 8012024: ret
.section .foo_sec, "ax", %progbits
.globl foo
.type foo, function
foo:
ret
.section .data
.balign 8
.globl dat
dat: .quad 0