lld/test/ELF/ppc64-toc-relax.s

   1 # REQUIRES: ppc
   2 # RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/ppc64-toc-relax-shared.s -o %t.o
   3 # RUN: ld.lld -shared -soname=t.so %t.o -o %t.so
   4 # RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t1.o
   5 # RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/ppc64-toc-relax.s -o %t2.o
   6 # RUN: llvm-readobj -r %t1.o | FileCheck --check-prefixes=RELOCS-LE,RELOCS %s
   7 # RUN: ld.lld %t1.o %t2.o %t.so -o %t
   8 # RUN: llvm-nm %t | FileCheck --check-prefix=NM %s
   9 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefixes=COMMON,EXE %s
  10
  11 # RUN: ld.lld -shared %t1.o %t2.o %t.so -o %t2.so
  12 # RUN: llvm-objdump -d --no-show-raw-insn %t2.so | FileCheck --check-prefixes=COMMON,SHARED %s
  13
  14 # RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/ppc64-toc-relax-shared.s -o %t.o
  15 # RUN: ld.lld -shared -soname=t.so %t.o -o %t.so
  16 # RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t1.o
  17 # RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/ppc64-toc-relax.s -o %t2.o
  18 # RUN: llvm-readobj -r %t1.o | FileCheck --check-prefixes=RELOCS-BE,RELOCS %s
  19 # RUN: ld.lld %t1.o %t2.o %t.so -o %t
  20 # RUN: llvm-nm %t | FileCheck --check-prefix=NM %s
  21 # RUN: llvm-objdump -d --no-show-raw-insn %t | FileCheck --check-prefixes=COMMON,EXE %s
  22
  23 # RUN: ld.lld -shared %t1.o %t2.o %t.so -o %t2.so
  24 # RUN: llvm-objdump -d --no-show-raw-insn %t2.so | FileCheck --check-prefixes=COMMON,SHARED %s
  25
  26 # RELOCS-LE:      .rela.text {
  27 # RELOCS-LE-NEXT:   0x0 R_PPC64_TOC16_HA .toc 0x0
  28 # RELOCS-LE-NEXT:   0x4 R_PPC64_TOC16_LO_DS .toc 0x0
  29 # RELOCS-LE-NEXT:   0xC R_PPC64_TOC16_HA .toc 0x8
  30 # RELOCS-LE-NEXT:   0x10 R_PPC64_TOC16_LO_DS .toc 0x8
  31 # RELOCS-LE-NEXT:   0x18 R_PPC64_TOC16_HA .toc 0x10
  32 # RELOCS-LE-NEXT:   0x1C R_PPC64_TOC16_LO_DS .toc 0x10
  33 # RELOCS-LE-NEXT:   0x24 R_PPC64_TOC16_HA .toc 0x18
  34 # RELOCS-LE-NEXT:   0x28 R_PPC64_TOC16_LO_DS .toc 0x18
  35 # RELOCS-LE-NEXT: }
  36
  37 # RELOCS-BE:      .rela.text {
  38 # RELOCS-BE-NEXT:   0x2 R_PPC64_TOC16_HA .toc 0x0
  39 # RELOCS-BE-NEXT:   0x6 R_PPC64_TOC16_LO_DS .toc 0x0
  40 # RELOCS-BE-NEXT:   0xE R_PPC64_TOC16_HA .toc 0x8
  41 # RELOCS-BE-NEXT:   0x12 R_PPC64_TOC16_LO_DS .toc 0x8
  42 # RELOCS-BE-NEXT:   0x1A R_PPC64_TOC16_HA .toc 0x10
  43 # RELOCS-BE-NEXT:   0x1E R_PPC64_TOC16_LO_DS .toc 0x10
  44 # RELOCS-BE-NEXT:   0x26 R_PPC64_TOC16_HA .toc 0x18
  45 # RELOCS-BE-NEXT:   0x2A R_PPC64_TOC16_LO_DS .toc 0x18
  46 # RELOCS-BE-NEXT: }
  47
  48 # RELOCS:         .rela.toc {
  49 # RELOCS-NEXT:      0x0 R_PPC64_ADDR64 hidden 0x0
  50 # RELOCS-NEXT:      0x8 R_PPC64_ADDR64 hidden2 0x0
  51 # RELOCS-NEXT:      0x10 R_PPC64_ADDR64 shared 0x0
  52 # RELOCS-NEXT:      0x18 R_PPC64_ADDR64 default 0x0
  53 # RELOCS-NEXT:    }
  54
  55 # NM-DAG: 00000000100303b0 D default
  56 # NM-DAG: 00000000100303b0 d hidden
  57 # NM-DAG: 00000000100403b0 d hidden2
  58
  59 # 'hidden' is non-preemptable. It is relaxed.
  60 # address(hidden) - (.got+0x8000) = 0x100303b0 - (0x10020390+0x8000) = (1<<16) - 32736
  61 # COMMON: addis 3, 2, 1
  62 # COMMON: addi 3, 3, -32736
  63 # COMMON: lwa 3, 0(3)
  64   addis 3, 2, .Lhidden@toc@ha
  65   ld    3, .Lhidden@toc@l(3)
  66   lwa   3, 0(3)
  67
  68 # address(hidden2) - (.got+0x8000) = 0x100403b0 - (0x10020390+0x8000) = (2<<16) - 32736
  69 # COMMON: addis 3, 2, 2
  70 # COMMON: addi 3, 3, -32736
  71 # COMMON: lwa 3, 0(3)
  72   addis 3, 2, .Lhidden2@toc@ha
  73   ld    3, .Lhidden2@toc@l(3)
  74   lwa   3, 0(3)
  75
  76 # 'shared' is not defined in an object file. Its definition is determined at
  77 # runtime by the dynamic linker, so the extra indirection cannot be relaxed.
  78 # The first addis can still be relaxed to nop, though.
  79 # COMMON: nop
  80 # COMMON: ld 4, -32752(2)
  81 # COMMON: lwa 4, 0(4)
  82   addis 4, 2, .Lshared@toc@ha
  83   ld    4, .Lshared@toc@l(4)
  84   lwa   4, 0(4)
  85
  86 # 'default' has default visibility. It is non-preemptable when producing an executable.
  87 # address(default) - (.got+0x8000) = 0x100303b0 - (0x10020390+0x8000) = (1<<16) - 32736
  88 # EXE: addis 5, 2, 1
  89 # EXE: addi 5, 5, -32736
  90 # EXE: lwa 5, 0(5)
  91
  92 # SHARED: nop
  93 # SHARED: ld 5, -32744(2)
  94 # SHARED: lwa 5, 0(5)
  95   addis 5, 2, .Ldefault@toc@ha
  96   ld    5, .Ldefault@toc@l(5)
  97   lwa   5, 0(5)
  98
  99 .section .toc,"aw",@progbits
 100 .Lhidden:
 101   .tc hidden[TC], hidden
 102 .Lhidden2:
 103   .tc hidden2[TC], hidden2
 104 .Lshared:
 105   .tc shared[TC], shared
 106 .Ldefault:
 107   .tc default[TC], default