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150
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1 // REQUIRES: arm
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2 // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=armv7a-none-linux-gnueabi %s -o %t
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3 // RUN: echo "SECTIONS {" > %t.script
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4 // RUN: echo " .text_low 0x130 : { *(.text) }" >> %t.script
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5 // RUN: echo " .text_high 0xf0000000 : AT(0x1000) { *(.text_high) }" >> %t.script
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6 // RUN: echo " } " >> %t.script
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7 // RUN: ld.lld --script %t.script --pie --static %t -o %t2
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173
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8 // RUN: llvm-objdump -d --triple=armv7a-none-linux-gnueabi --no-show-raw-insn %t2 | FileCheck %s
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150
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9
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10 // RUN: llvm-mc -arm-add-build-attributes -filetype=obj -triple=thumbv7a-none-linux-gnueabi %s -o %t3
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11 // RUN: ld.lld --script %t.script --pie %t3 -o %t4
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173
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12 // RUN: llvm-objdump -d --triple=thumbv7a-none-linux-gnueabi --no-show-raw-insn %t4 | FileCheck --check-prefix=CHECK-THUMB %s
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150
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13
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14 // Check that we can create Arm and Thumb v7a Position Independent Thunks that
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15 // can span the address space without triggering overflow errors. We use an
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16 // AT(0x1000) for .text_high to avoid creating an almost 4Gb size file.
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17 .syntax unified
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18 .text
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19 .global _start
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20 .type _start, %function
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21 _start:
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22 bl high
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23 bx lr
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24
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25 .section .text_high, "ax", %progbits
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26 .global high
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27 .type high, %function
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28 high:
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29 bl _start
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30 bx lr
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31
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32 // ARMv7a instructions and relocations.
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33
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34 // CHECK: Disassembly of section .text_low:
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35 // CHECK-EMPTY:
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173
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36 // CHECK-NEXT: <_start>:
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150
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37 // CHECK-NEXT: 130: bl #0 <__ARMV7PILongThunk_high>
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38 // CHECK-NEXT: 134: bx lr
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39
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173
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40 // CHECK: <__ARMV7PILongThunk_high>:
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150
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41 // CHECK-NEXT: 138: movw r12, #65208
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42 // CHECK-NEXT: 13c: movt r12, #61439
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43 // 0x140 + 0xEFFF0000 + 0x0000FEB8 + 8 = 0xf0000000 = high
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44 // CHECK-NEXT: 140: add r12, r12, pc
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45 // CHECK-NEXT: 144: bx r12
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46
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47 // CHECK: Disassembly of section .text_high:
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48 // CHECK-EMPTY:
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173
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49 // CHECK-NEXT: <high>:
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150
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50 // CHECK-NEXT: f0000000: bl #0 <__ARMV7PILongThunk__start>
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51 // CHECK-NEXT: f0000004: bx lr
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52
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173
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53 // CHECK: <__ARMV7PILongThunk__start>:
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150
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54 // CHECK-NEXT: f0000008: movw r12, #280
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55 // CHECK-NEXT: f000000c: movt r12, #4096
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56 // 0xf0000010 + 0x10000000 + 0x0000118 + 8 = bits32(0x100000130),0x130 = _start
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57 // CHECK-NEXT: f0000010: add r12, r12, pc
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58 // CHECK-NEXT: f0000014: bx r12
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59
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60 // Thumbv7a instructions and relocations
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61 // CHECK-THUMB: Disassembly of section .text_low:
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62 // CHECK-THUMB-EMPTY:
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173
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63 // CHECK-THUMB-NEXT: <_start>:
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150
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64 // CHECK-THUMB-NEXT: 130: bl #4
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65 // CHECK-THUMB-NEXT: 134: bx lr
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66 // CHECK-THUMB-NEXT: 136: bmi #-88
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67
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173
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68 // CHECK-THUMB: <__ThumbV7PILongThunk_high>:
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150
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69 // CHECK-THUMB-NEXT: 138: movw r12, #65213
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70 // CHECK-THUMB-NEXT: 13c: movt r12, #61439
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71 // 0x140 + 0xEFFF0000 + 0x0000FEBD + 4 = 0xf0000001 = high
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72 // CHECK-THUMB-NEXT: 140: add r12, pc
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73 // CHECK-THUMB-NEXT: 142: bx r12
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74
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75 // CHECK-THUMB: Disassembly of section .text_high:
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76 // CHECK-THUMB-EMPTY:
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173
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77 // CHECK-THUMB-NEXT: <high>:
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150
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78 // CHECK-THUMB-NEXT: f0000000: bl #4
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79 // CHECK-THUMB-NEXT: f0000004: bx lr
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80
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173
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81 // CHECK-THUMB: <__ThumbV7PILongThunk__start>:
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150
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82 // CHECK-THUMB-NEXT: f0000008: movw r12, #285
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83 // CHECK-THUMB-NEXT: f000000c: movt r12, #4096
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84 // 0xf0000010 + 0x10000000 + 0x000011d +4 = bits32(0x100000131),0x131 = _start
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85 // CHECK-THUMB-NEXT: f0000010: add r12, pc
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86 // CHECK-THUMB-NEXT: f0000012: bx r12
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