lld/test/ELF/aarch64-cortex-a53-843419-large.s

   1 // REQUIRES: aarch64
   2 // RUN: llvm-mc -filetype=obj -triple=aarch64 %s -o %t.o
   3 // RUN: ld.lld --fix-cortex-a53-843419 -z separate-code %t.o -o %t2
   4 // RUN: llvm-objdump --triple=aarch64-linux-gnu -d %t2 --start-address=0x210000   --stop-address=0x21000c   | FileCheck --check-prefix=CHECK1 %s
   5 // RUN: llvm-objdump --triple=aarch64-linux-gnu -d %t2 --start-address=0x211000   --stop-address=0x211004   | FileCheck --check-prefix=CHECK2 %s
   6 // RUN: llvm-objdump --triple=aarch64-linux-gnu -d %t2 --start-address=0x211ff8   --stop-address=0x212008   | FileCheck --check-prefix=CHECK3 %s
   7 // RUN: llvm-objdump --triple=aarch64-linux-gnu -d %t2 --start-address=0x4213ff8  --stop-address=0x4214008  | FileCheck --check-prefix=CHECK4 %s
   8 // RUN: llvm-objdump --triple=aarch64-linux-gnu -d %t2 --start-address=0x6214008 --stop-address=0x6214018 | FileCheck --check-prefix=CHECK5 %s
   9 // RUN: llvm-objdump --triple=aarch64-linux-gnu -d %t2 --start-address=0x821100c --stop-address=0x8211010 | FileCheck --check-prefix=CHECK6 %s
  10 // RUN: llvm-objdump --triple=aarch64-linux-gnu -d %t2 --start-address=0x8211ffc --stop-address=0x8212014 | FileCheck --check-prefix=CHECK7 %s
  11 // RUN: rm %t.o %t2
  12 // Test case for Cortex-A53 Erratum 843419 in an OutputSection exceeding
  13 // the maximum branch range. Both range extension thunks and patches are
  14 // required.
  15
  16 // CHECK1:  <__AArch64AbsLongThunk_need_thunk_after_patch>:
  17 // CHECK1-NEXT:    210000:       58000050        ldr     x16, 0x210008
  18 // CHECK1-NEXT:    210004:       d61f0200        br      x16
  19 // CHECK1-NEXT:    210008:       0c 10 21 08     .word   0x0821100c
  20
  21         .section .text.01, "ax", %progbits
  22         .balign 4096
  23         .globl _start
  24         .type _start, %function
  25 _start:
  26         // Expect thunk on pass 2
  27         bl need_thunk_after_patch
  28         .section .text.02, "ax", %progbits
  29         .space 4096 - 12
  30
  31 // CHECK2: <_start>:
  32 // CHECK2-NEXT:    211000:       97fffc00        bl      0x210000
  33
  34         // Expect patch on pass 1
  35         .section .text.03, "ax", %progbits
  36         .globl t3_ff8_ldr
  37         .type t3_ff8_ldr, %function
  38 t3_ff8_ldr:
  39         adrp x0, dat
  40         ldr x1, [x1, #0]
  41         ldr x0, [x0, :got_lo12:dat]
  42         ret
  43
  44 // CHECK3: <t3_ff8_ldr>:
  45 // CHECK3-NEXT:    211ff8:       f00400e0        adrp    x0, 0x8230000
  46 // CHECK3-NEXT:    211ffc:       f9400021        ldr     x1, [x1]
  47 // CHECK3-NEXT:    212000:       15800802        b       0x6214008
  48 // CHECK3-NEXT:    212004:       d65f03c0        ret
  49
  50         .section .text.04, "ax", %progbits
  51         .space 64 * 1024 * 1024
  52
  53         // Expect patch on pass 1
  54         .section .text.05, "ax", %progbits
  55         .balign 4096
  56         .space 4096 - 8
  57         .globl t3_ff8_str
  58         .type t3_ff8_str, %function
  59 t3_ff8_str:
  60         adrp x0, dat
  61         ldr x1, [x1, #0]
  62         str x0, [x0, :got_lo12:dat]
  63         ret
  64
  65 // CHECK4: <t3_ff8_str>:
  66 // CHECK4-NEXT:  4213ff8:       b00200e0        adrp    x0, 0x8230000
  67 // CHECK4-NEXT:  4213ffc:       f9400021        ldr     x1, [x1]
  68 // CHECK4-NEXT:  4214000:       14800004        b       0x6214010
  69 // CHECK4-NEXT:  4214004:       d65f03c0        ret
  70
  71         .section .text.06, "ax", %progbits
  72         .space 32 * 1024 * 1024
  73
  74 // CHECK5: <__CortexA53843419_211000>:
  75 // CHECK5-NEXT:  6214008:       f9400000        ldr     x0, [x0]
  76 // CHECK5-NEXT:  621400c:       167ff7fe        b       0x212004
  77 // CHECK5: <__CortexA53843419_4213000>:
  78 // CHECK5-NEXT:  6214010:       f9000000        str     x0, [x0]
  79 // CHECK5-NEXT:  6214014:       177ffffc        b       0x4214004
  80
  81         .section .text.07, "ax", %progbits
  82         .space (32 * 1024 * 1024) - 12300
  83
  84         .section .text.08, "ax", %progbits
  85         .globl need_thunk_after_patch
  86         .type need_thunk_after_patch, %function
  87 need_thunk_after_patch:
  88         ret
  89
  90 // CHECK6: <need_thunk_after_patch>:
  91 // CHECK6-NEXT:  821100c:       d65f03c0        ret
  92
  93         // Will need a patch on pass 2
  94         .section .text.09, "ax", %progbits
  95         .space 4096 - 20
  96         .globl t3_ffc_ldr
  97         .type t3_ffc_ldr, %function
  98 t3_ffc_ldr:
  99         adrp x0, dat
 100         ldr x1, [x1, #0]
 101         ldr x0, [x0, :got_lo12:dat]
 102         ret
 103
 104 // CHECK7: <t3_ffc_ldr>:
 105 // CHECK7-NEXT:  8211ffc:       f00000e0        adrp    x0, 0x8230000
 106 // CHECK7-NEXT:  8212000:       f9400021        ldr     x1, [x1]
 107 // CHECK7-NEXT:  8212004:       14000002        b       0x821200c
 108 // CHECK7-NEXT:  8212008:       d65f03c0        ret
 109 // CHECK7: <__CortexA53843419_8212004>:
 110 // CHECK7-NEXT:  821200c:       f9400000        ldr     x0, [x0]
 111 // CHECK7-NEXT:  8212010:       17fffffe        b       0x8212008
 112
 113         .section .data
 114         .globl dat
 115 dat:    .quad 0