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| 1 | +# REQUIRES: ppc |
| 2 | + |
| 3 | +# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o |
| 4 | +# RUN: llvm-readobj -relocations %t.o | FileCheck -check-prefix=RELOCS-LE %s |
| 5 | +# RUN: ld.lld %t.o -o %t2 |
| 6 | +# RUN: llvm-objdump -D %t2 | FileCheck %s --check-prefix=CHECK-LE |
| 7 | +# RUN: llvm-objdump -D %t2 | FileCheck %s |
| 8 | + |
| 9 | +# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o |
| 10 | +# RUN: llvm-readobj -relocations %t.o | FileCheck -check-prefix=RELOCS-BE %s |
| 11 | +# RUN: ld.lld %t.o -o %t2 |
| 12 | +# RUN: llvm-objdump -D %t2 | FileCheck %s --check-prefix=CHECK-BE |
| 13 | +# RUN: llvm-objdump -D %t2 | FileCheck %s |
| 14 | + |
| 15 | +# Make sure we calculate the offset correctly for a got-indirect access to a |
| 16 | +# global variable as described by the PPC64 ELF V2 abi. |
| 17 | + .text |
| 18 | + .abiversion 2 |
| 19 | + .globl _start # -- Begin function _start |
| 20 | + .p2align 4 |
| 21 | + .type _start,@function |
| 22 | +_start: # @_start |
| 23 | +.Lfunc_begin0: |
| 24 | +.Lfunc_gep0: |
| 25 | + addis 2, 12, .TOC.-.Lfunc_gep0@ha |
| 26 | + addi 2, 2, .TOC.-.Lfunc_gep0@l |
| 27 | +.Lfunc_lep0: |
| 28 | + .localentry _start, .Lfunc_lep0-.Lfunc_gep0 |
| 29 | +# %bb.0: # %entry |
| 30 | + addis 3, 2, .LC0@toc@ha |
| 31 | + ld 3, .LC0@toc@l(3) |
| 32 | + li 4, 0 |
| 33 | + stw 4, -12(1) |
| 34 | + li 0,1 |
| 35 | + lwa 3, 0(3) |
| 36 | + sc |
| 37 | + .long 0 |
| 38 | + .quad 0 |
| 39 | +.Lfunc_end0: |
| 40 | + .size _start, .Lfunc_end0-.Lfunc_begin0 |
| 41 | + # -- End function |
| 42 | + .section .toc,"aw",@progbits |
| 43 | +.LC0: |
| 44 | + .tc glob[TC],glob |
| 45 | + .type glob,@object # @glob |
| 46 | + .data |
| 47 | + .globl glob |
| 48 | + .p2align 2 |
| 49 | +glob: |
| 50 | + .long 55 # 0x37 |
| 51 | + .size glob, 4 |
| 52 | + |
| 53 | +# Verify the relocations emitted for glob are through the .toc |
| 54 | + |
| 55 | +# RELOCS-LE: Relocations [ |
| 56 | +# RELOCS-LE: .rela.text { |
| 57 | +# RELOCS-LE: 0x0 R_PPC64_REL16_HA .TOC. 0x0 |
| 58 | +# RELOCS-LE: 0x4 R_PPC64_REL16_LO .TOC. 0x4 |
| 59 | +# RELOCS-LE: 0x8 R_PPC64_TOC16_HA .toc 0x0 |
| 60 | +# RELOCS-LE: 0xC R_PPC64_TOC16_LO_DS .toc 0x0 |
| 61 | +# RELOCS-LE: } |
| 62 | +# RELOCS-LE: .rela.toc { |
| 63 | +# RELOCS-LE: 0x0 R_PPC64_ADDR64 glob 0x0 |
| 64 | +# RELOCS-LE: } |
| 65 | + |
| 66 | +# RELOCS-BE: Relocations [ |
| 67 | +# RELOCS-BE: .rela.text { |
| 68 | +# RELOCS-BE: 0x2 R_PPC64_REL16_HA .TOC. 0x2 |
| 69 | +# RELOCS-BE: 0x6 R_PPC64_REL16_LO .TOC. 0x6 |
| 70 | +# RELOCS-BE: 0xA R_PPC64_TOC16_HA .toc 0x0 |
| 71 | +# RELOCS-BE: 0xE R_PPC64_TOC16_LO_DS .toc 0x0 |
| 72 | +# RELOCS-BE: } |
| 73 | +# RELOCS-BE: .rela.toc { |
| 74 | +# RELOCS-BE: 0x0 R_PPC64_ADDR64 glob 0x0 |
| 75 | +# RELOCS-BE: } |
| 76 | +# RELOCS-BE:] |
| 77 | + |
| 78 | +# Verify that the global variable access is done through the correct |
| 79 | +# toc entry: |
| 80 | +# r2 = .TOC. = 0x10038000. |
| 81 | +# r3 = r2 - 32760 = 0x10030008 -> .toc entry for glob. |
| 82 | + |
| 83 | +# CHECK: _start: |
| 84 | +# CHECK-NEXT: 10010000: {{.*}} addis 2, 12, 3 |
| 85 | +# CHECK-NEXT: 10010004: {{.*}} addi 2, 2, -32768 |
| 86 | +# CHECK-NEXT: 10010008: {{.*}} addis 3, 2, 0 |
| 87 | +# CHECK-NEXT: 1001000c: {{.*}} ld 3, -32760(3) |
| 88 | +# CHECK: 1001001c: {{.*}} lwa 3, 0(3) |
| 89 | + |
| 90 | +# CHECK-LE: Disassembly of section .data: |
| 91 | +# CHECK-LE-NEXT: glob: |
| 92 | +# CHECK-LE-NEXT: 10020000: 37 00 00 00 |
| 93 | + |
| 94 | +# CHECK-LE: Disassembly of section .got: |
| 95 | +# CHECK-LE-NEXT: .got: |
| 96 | +# CHECK-LE-NEXT: 10030000: 00 80 03 10 |
| 97 | +# CHECK-LE-NEXT: 10030004: 00 00 00 00 |
| 98 | + |
| 99 | +# Verify that .toc comes right after .got |
| 100 | +# CHECK-LE: Disassembly of section .toc: |
| 101 | +# CHECK-LE: 10030008: 00 00 02 10 |
| 102 | + |
| 103 | +# CHECK-BE: Disassembly of section .data: |
| 104 | +# CHECK-BE-NEXT: glob: |
| 105 | +# CHECK-BE-NEXT: 10020000: 00 00 00 37 |
| 106 | + |
| 107 | +# CHECK-BE: Disassembly of section .got: |
| 108 | +# CHECK-BE-NEXT: .got: |
| 109 | +# CHECK-BE-NEXT: 10030000: 00 00 00 00 |
| 110 | +# CHECK-BE-NEXT: 10030004: 10 03 80 00 |
| 111 | + |
| 112 | +# Verify that .toc comes right after .got |
| 113 | +# CHECK-BE: Disassembly of section .toc: |
| 114 | +# CHECK-BE: 10030008: 00 00 00 00 |
| 115 | +# CHECK-BE: 1003000c: 10 02 00 00 |
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