lld/test/ELF/arm-force-pi-thunk.s

   1 // REQUIRES: arm
   2 // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
   3 // RUN: echo "SECTIONS { \
   4 // RUN:       . = SIZEOF_HEADERS; \
   5 // RUN:       .text_low : { *(.text_low) *(.text_low2) } \
   6 // RUN:       .text_high 0x2000000 : { *(.text_high) *(.text_high2) } \
   7 // RUN:       } " > %t.script
   8 // RUN: ld.lld --pic-veneer --no-rosegment --script %t.script %t -o %t2
   9 // RUN: llvm-objdump --no-print-imm-hex -d %t2 | FileCheck %s
  10
  11 // Test that we can force generation of position independent thunks even when
  12 // inputs are not pic.
  13
  14  .syntax unified
  15  .section .text_low, "ax", %progbits
  16  .thumb
  17  .globl _start
  18 _start: bx lr
  19  .globl low_target
  20  .type low_target, %function
  21 low_target:
  22  bl high_target
  23  bl high_target2
  24
  25  .section .text_low2, "ax", %progbits
  26  .thumb
  27  .globl low_target2
  28  .type low_target2, %function
  29 low_target2:
  30  bl high_target
  31  bl high_target2
  32
  33 // CHECK: Disassembly of section .text_low:
  34 // CHECK-EMPTY:
  35 // CHECK-NEXT: <_start>:
  36 // CHECK-NEXT:       94:        4770    bx      lr
  37 // CHECK: <low_target>:
  38 // CHECK-NEXT:       96:        f000 f803       bl      0xa0 <__ThumbV7PILongThunk_high_target>
  39 // CHECK-NEXT:       9a:        f000 f807       bl      0xac <__ThumbV7PILongThunk_high_target2>
  40 // CHECK-NEXT:       9e:        d4d4
  41 // CHECK: <__ThumbV7PILongThunk_high_target>:
  42 // CHECK-NEXT:       a0:        f64f 7c55       movw    r12, #65365
  43 // CHECK-NEXT:       a4:        f2c0 1cff       movt    r12, #511
  44 // CHECK-NEXT:       a8:        44fc    add     r12, pc
  45 // CHECK-NEXT:       aa:        4760    bx      r12
  46 // CHECK: <__ThumbV7PILongThunk_high_target2>:
  47 // CHECK-NEXT:       ac:        f64f 7c69       movw    r12, #65385
  48 // CHECK-NEXT:       b0:        f2c0 1cff       movt    r12, #511
  49 // CHECK-NEXT:       b4:        44fc    add     r12, pc
  50 // CHECK-NEXT:       b6:        4760    bx      r12
  51 // CHECK: <low_target2>:
  52 // CHECK-NEXT:       b8:        f7ff fff2       bl      0xa0 <__ThumbV7PILongThunk_high_target>
  53 // CHECK-NEXT:       bc:        f7ff fff6       bl      0xac <__ThumbV7PILongThunk_high_target2>
  54
  55
  56  .section .text_high, "ax", %progbits
  57  .thumb
  58  .globl high_target
  59  .type high_target, %function
  60 high_target:
  61  bl low_target
  62  bl low_target2
  63
  64  .section .text_high2, "ax", %progbits
  65  .thumb
  66  .globl high_target2
  67  .type high_target2, %function
  68 high_target2:
  69  bl low_target
  70  bl low_target2
  71
  72 // CHECK: Disassembly of section .text_high:
  73 // CHECK-EMPTY:
  74 // CHECK-NEXT: <high_target>:
  75 // CHECK-NEXT:  2000000:        f000 f802       bl      0x2000008 <__ThumbV7PILongThunk_low_target>
  76 // CHECK-NEXT:  2000004:        f000 f806       bl      0x2000014 <__ThumbV7PILongThunk_low_target2>
  77 // CHECK: <__ThumbV7PILongThunk_low_target>:
  78 // CHECK-NEXT:  2000008:        f240 0c83       movw    r12, #131
  79 // CHECK-NEXT:  200000c:        f6cf 6c00       movt    r12, #65024
  80 // CHECK-NEXT:  2000010:        44fc    add     r12, pc
  81 // CHECK-NEXT:  2000012:        4760    bx      r12
  82 // CHECK: <__ThumbV7PILongThunk_low_target2>:
  83 // CHECK-NEXT:  2000014:        f240 0c99       movw    r12, #153
  84 // CHECK-NEXT:  2000018:        f6cf 6c00       movt    r12, #65024
  85 // CHECK-NEXT:  200001c:        44fc    add     r12, pc
  86 // CHECK-NEXT:  200001e:        4760    bx      r12
  87 // CHECK: <high_target2>:
  88 // CHECK-NEXT:  2000020:        f7ff fff2       bl      0x2000008 <__ThumbV7PILongThunk_low_target>
  89 // CHECK-NEXT:  2000024:        f7ff fff6       bl      0x2000014 <__ThumbV7PILongThunk_low_target2>