forked from OSchip/llvm-project
92 lines
3.4 KiB
ArmAsm
92 lines
3.4 KiB
ArmAsm
// RUN: llvm-mc -filetype=obj -triple=aarch64-linux-gnu %s -o %t
|
|
// RUN: echo "SECTIONS { \
|
|
// RUN: .text_low : { *(.text_low) } \
|
|
// RUN: .text_high 0x10000000 : { *(.text_high) } \
|
|
// RUN: } " > %t.script
|
|
// RUN: ld.lld --script %t.script --shared %t -o %t2 2>&1
|
|
// RUN: llvm-objdump -d -triple=aarch64-linux-gnu %t2 | FileCheck %s
|
|
// REQUIRES: aarch64
|
|
|
|
// Check that Position Independent thunks are generated for shared libraries.
|
|
.section .text_low, "ax", %progbits
|
|
.globl low_target
|
|
.type low_target, %function
|
|
low_target:
|
|
// Need thunk to high_target@plt
|
|
bl high_target
|
|
ret
|
|
// CHECK: low_target:
|
|
// CHECK-NEXT: 0: 04 00 00 94 bl #16
|
|
// CHECK-NEXT: 4: c0 03 5f d6 ret
|
|
|
|
.hidden low_target2
|
|
.globl low_target2
|
|
.type low_target2, %function
|
|
low_target2:
|
|
// Need thunk to high_target
|
|
bl high_target2
|
|
ret
|
|
// CHECK: low_target2:
|
|
// CHECK-NEXT: 8: 05 00 00 94 bl #20
|
|
// CHECK-NEXT: c: c0 03 5f d6 ret
|
|
|
|
// Expect range extension thunks for .text_low
|
|
// adrp calculation is (PC + signed immediate) & (!0xfff)
|
|
// CHECK: __AArch64ADRPThunk_high_target:
|
|
// CHECK-NEXT: 10: 10 00 08 90 adrp x16, #268435456
|
|
// CHECK-NEXT: 14: 10 82 04 91 add x16, x16, #288
|
|
// CHECK-NEXT: 18: 00 02 1f d6 br x16
|
|
// CHECK: __AArch64ADRPThunk_high_target2:
|
|
// CHECK-NEXT: 1c: 10 00 08 90 adrp x16, #268435456
|
|
// CHECK-NEXT: 20: 10 22 00 91 add x16, x16, #8
|
|
// CHECK-NEXT: 24: 00 02 1f d6 br x16
|
|
|
|
|
|
.section .text_high, "ax", %progbits
|
|
.globl high_target
|
|
.type high_target, %function
|
|
high_target:
|
|
// No thunk needed as we can reach low_target@plt
|
|
bl low_target
|
|
ret
|
|
// CHECK: high_target:
|
|
// CHECK-NEXT: 10000000: 4c 00 00 94 bl #304
|
|
// CHECK-NEXT: 10000004: c0 03 5f d6 ret
|
|
|
|
.hidden high_target2
|
|
.globl high_target2
|
|
.type high_target2, %function
|
|
high_target2:
|
|
// Need thunk to low_target
|
|
bl low_target2
|
|
ret
|
|
// CHECK: high_target2:
|
|
// CHECK-NEXT: 10000008: 02 00 00 94 bl #8
|
|
// CHECK-NEXT: 1000000c: c0 03 5f d6 ret
|
|
|
|
// Expect Thunk for .text.high
|
|
|
|
// CHECK: __AArch64ADRPThunk_low_target2:
|
|
// CHECK-NEXT: 10000010: 10 00 f8 90 adrp x16, #-268435456
|
|
// CHECK-NEXT: 10000014: 10 22 00 91 add x16, x16, #8
|
|
// CHECK-NEXT: 10000018: 00 02 1f d6 br x16
|
|
|
|
// CHECK: Disassembly of section .plt:
|
|
// CHECK-NEXT: .plt:
|
|
// CHECK-NEXT: 10000100: f0 7b bf a9 stp x16, x30, [sp, #-16]!
|
|
// CHECK-NEXT: 10000104: 10 00 00 90 adrp x16, #0
|
|
// CHECK-NEXT: 10000108: 11 aa 40 f9 ldr x17, [x16, #336]
|
|
// CHECK-NEXT: 1000010c: 10 42 05 91 add x16, x16, #336
|
|
// CHECK-NEXT: 10000110: 20 02 1f d6 br x17
|
|
// CHECK-NEXT: 10000114: 1f 20 03 d5 nop
|
|
// CHECK-NEXT: 10000118: 1f 20 03 d5 nop
|
|
// CHECK-NEXT: 1000011c: 1f 20 03 d5 nop
|
|
// CHECK-NEXT: 10000120: 10 00 00 90 adrp x16, #0
|
|
// CHECK-NEXT: 10000124: 11 ae 40 f9 ldr x17, [x16, #344]
|
|
// CHECK-NEXT: 10000128: 10 62 05 91 add x16, x16, #344
|
|
// CHECK-NEXT: 1000012c: 20 02 1f d6 br x17
|
|
// CHECK-NEXT: 10000130: 10 00 00 90 adrp x16, #0
|
|
// CHECK-NEXT: 10000134: 11 b2 40 f9 ldr x17, [x16, #352]
|
|
// CHECK-NEXT: 10000138: 10 82 05 91 add x16, x16, #352
|
|
// CHECK-NEXT: 1000013c: 20 02 1f d6 br x17
|