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150
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1 # REQUIRES: ppc
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2 # RUN: llvm-mc -filetype=obj -triple=powerpc %s -o %t.o
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3 # RUN: echo '.globl f, g, h; f: g: h:' | llvm-mc -filetype=obj -triple=powerpc - -o %t1.o
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4 # RUN: ld.lld -shared %t1.o -soname t1.so -o %t1.so
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5
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6 ## Check we can create PLT entries for -fno-PIE executable.
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7 # RUN: ld.lld %t.o %t1.so -o %t
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8 # RUN: llvm-readobj -r -d %t | FileCheck --check-prefix=RELOC %s
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9 # RUN: llvm-readelf -S %t | FileCheck --check-prefix=SEC %s
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10 # RUN: llvm-readelf -x .plt %t | FileCheck --check-prefix=HEX %s
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11 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck %s
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12
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173
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13 # SEC: .got PROGBITS 100202b8
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14 # RELOC: PPC_GOT 0x100202B8
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15
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150
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16 # RELOC: .rela.plt {
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17 # RELOC-NEXT: 0x100302C4 R_PPC_JMP_SLOT f 0x0
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18 # RELOC-NEXT: 0x100302C8 R_PPC_JMP_SLOT g 0x0
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19 # RELOC-NEXT: }
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20
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21 ## .got2+0x8000-0x10004 = 0x30000+0x8000-0x10004 = 65536*2+32764
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173
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22 # CHECK-LABEL: <_start>:
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23 # CHECK-NEXT: bl 0x100101d0
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24 # CHECK-NEXT: bl 0x100101d0
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25 # CHECK-NEXT: bl 0x100101e0
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26 # CHECK-NEXT: bl 0x100101e0
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150
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27 # CHECK-EMPTY:
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28
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29 ## -fno-PIC call stubs of f and g.
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30 ## .plt[0] = 0x100302c4 = 65536*4099+708
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31 ## .plt[1] = 0x100302c8 = 65536*4099+712
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173
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32 # CHECK-NEXT: <00000000.plt_call32.f>:
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150
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33 # CHECK-NEXT: lis 11, 4099
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34 # CHECK-NEXT: lwz 11, 708(11)
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35 # CHECK-NEXT: mtctr 11
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36 # CHECK-NEXT: bctr
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37 # CHECK-EMPTY:
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173
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38 # CHECK-NEXT: <00000000.plt_call32.g>:
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150
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39 # CHECK-NEXT: lis 11, 4099
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40 # CHECK-NEXT: lwz 11, 712(11)
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41 # CHECK-NEXT: mtctr 11
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42 # CHECK-NEXT: bctr
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43 # CHECK-EMPTY:
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44
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45 ## In Secure PLT ABI, .plt stores function pointers to first instructions of .glink
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46 # HEX: 0x100302c4 10010200 10010204
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47
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48 ## These instructions are referenced by .plt entries.
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173
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49 # CHECK: 10010200 <.glink>:
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50 # CHECK-NEXT: b 0x10010208
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51 # CHECK-NEXT: b 0x10010208
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150
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52
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53 ## PLTresolve
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54 ## Operands of lis & lwz: .got+4 = 0x10020070+4 = 65536*4098+700
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55 ## Operands of addis & addi: -.glink = -0x10010200 = 65536*-4097-512
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56 # CHECK-NEXT: lis 12, 4098
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57 # CHECK-NEXT: addis 11, 11, -4097
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58 # CHECK-NEXT: lwz 0, 700(12)
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59 # CHECK-NEXT: addi 11, 11, -512
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60
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61 # CHECK-NEXT: mtctr 0
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62 # CHECK-NEXT: add 0, 11, 11
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63 # CHECK-NEXT: lwz 12, 704(12)
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64 # CHECK-NEXT: add 11, 0, 11
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65 # CHECK-NEXT: bctr
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66
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67 ## glibc crti.o references _GLOBAL_OFFSET_TABLE_.
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68 .section .init
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69 bcl 20, 31, .+4
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70 .L:
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71 mflr 30
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72 addis 30, 30, _GLOBAL_OFFSET_TABLE_-.L@ha
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73 addi 30, 30, _GLOBAL_OFFSET_TABLE_-.L@l
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74
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75 .text
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76 .globl _start
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77 _start:
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78 bl f
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79 bl f
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80 bl g
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81 bl g
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