test/ExecutionEngine/RuntimeDyld/Mips/ELF_N32_relocations.s

   1 # RUN: rm -rf %t && mkdir -p %t
   2 # RUN: llvm-mc -triple=mips64el-unknown-linux -target-abi n32 -filetype=obj -o %t/test_ELF_N32.o %s
   3 # RUN: llc -mtriple=mips64el-unknown-linux -target-abi n32 -filetype=obj -o %t/test_ELF_ExternalFunction_N32.o %S/Inputs/ExternalFunction.ll
   4 # RUN: llvm-rtdyld -triple=mips64el-unknown-linux -verify -map-section test_ELF_N32.o,.text=0x1000 -map-section test_ELF_ExternalFunction_N32.o,.text=0x10000 -check=%s %t/test_ELF_N32.o %t/test_ELF_ExternalFunction_N32.o
   5
   6 # RUN: llvm-mc -triple=mips64-unknown-linux -target-abi n32 -filetype=obj -o %t/test_ELF_N32.o %s
   7 # RUN: llc -mtriple=mips64-unknown-linux -target-abi n32 -filetype=obj -o %t/test_ELF_ExternalFunction_N32.o %S/Inputs/ExternalFunction.ll
   8 # RUN: llvm-rtdyld -triple=mips64-unknown-linux -verify -map-section test_ELF_N32.o,.text=0x1000 -map-section test_ELF_ExternalFunction_N32.o,.text=0x10000 -check=%s %t/test_ELF_N32.o %t/test_ELF_ExternalFunction_N32.o
   9
  10         .data
  11 # Test R_MIPS_PC32 relocation.
  12 # rtdyld-check: *{4}(R_MIPS_PC32) = (foo - R_MIPS_PC32)[31:0]
  13 R_MIPS_PC32:
  14         .word foo-.
  15 # rtdyld-check: *{4}(R_MIPS_PC32 + 4) = (foo - tmp1)[31:0]
  16 tmp1:
  17         .4byte foo-tmp1
  18
  19         .text
  20         .abicalls
  21         .section        .mdebug.abi64,"",@progbits
  22         .nan    legacy
  23         .file   "ELF_N32_PIC_relocations.ll"
  24         .text
  25         .globl  bar
  26         .align  3
  27         .type   bar,@function
  28         .set    nomicromips
  29         .set    nomips16
  30         .ent    bar
  31 bar:
  32         .frame  $fp,40,$ra
  33         .mask   0x00000000,0
  34         .fmask  0x00000000,0
  35         .set    noreorder
  36         .set    nomacro
  37         .set    noat
  38         daddiu  $sp, $sp, -40
  39         sd      $ra, 32($sp)
  40         sd      $fp, 24($sp)
  41         move     $fp, $sp
  42         sd      $4, 16($fp)
  43         lb      $2, 0($4)
  44         sd      $4, 8($fp)
  45
  46 # Test R_MIPS_26 relocation.
  47 # rtdyld-check:  decode_operand(insn1, 0)[27:0] = stub_addr(test_ELF_N32.o/.text, foo)[27:0]
  48 insn1:
  49         .option pic0
  50         jal   foo
  51         .option pic2
  52         nop
  53
  54 # Test R_MIPS_PC16 relocation.
  55 # rtdyld-check:  decode_operand(insn2, 1)[17:0] = (foo - insn2)[17:0]
  56 insn2:
  57         bal   foo
  58         nop
  59
  60         move     $sp, $fp
  61         ld      $ra, 32($sp)
  62         ld      $fp, 24($sp)
  63         daddiu  $sp, $sp, 32
  64         jr      $ra
  65         nop
  66         .set    at
  67         .set    macro
  68         .set    reorder
  69         .end    bar
  70 $func_end0:
  71         .size   bar, ($func_end0)-bar
  72
  73         .globl  main
  74         .align  3
  75         .type   main,@function
  76         .set    nomicromips
  77         .set    nomips16
  78         .ent    main
  79 main:
  80         .frame  $fp,32,$ra
  81         .mask   0x00000000,0
  82         .fmask  0x00000000,0
  83         .set    noreorder
  84         .set    nomacro
  85         .set    noat
  86         daddiu  $sp, $sp, -32
  87         sd      $ra, 24($sp)
  88         sd      $fp, 16($sp)
  89         sd      $gp, 8($sp)
  90         move     $fp, $sp
  91
  92 # $gp register contains address of the .got section + 0x7FF0. 0x7FF0 is
  93 # the offset of $gp from the beginning of the .got section. Check that we are
  94 # loading address of the page pointer from correct offset. In this case
  95 # the page pointer is the first entry in the .got section, so offset will be
  96 # 0 - 0x7FF0.
  97 # rtdyld-check:  decode_operand(insn5, 2)[15:0] = 0x8010
  98 #
  99 # Check that the global offset table contains the page pointer.
 100 # rtdyld-check: *{4}(section_addr(test_ELF_N32.o, .got)) = (_str + 0x8000) & 0xffff0000
 101 insn5:
 102         ld      $25, %got_page(_str)($1)
 103
 104 # Check the offset of _str from the page pointer.
 105 # rtdyld-check:  decode_operand(insn6, 2)[15:0] = _str[15:0]
 106 insn6:
 107         daddiu  $25, $25, %got_ofst(_str)
 108
 109 # Check that we are loading address of var from correct offset. In this case
 110 # var is the second entry in the .got section, so offset will be 4 - 0x7FF0.
 111 # rtdyld-check:  decode_operand(insn7, 2)[15:0] = 0x8014
 112 #
 113 # Check that the global offset table contains the address of the var.
 114 # rtdyld-check: *{4}(section_addr(test_ELF_N32.o, .got) + 4) = var
 115 insn7:
 116         ld      $2, %got_disp(var)($1)
 117         sd      $25, 0($2)
 118
 119 # Check that we are loading address of bar from correct offset. In this case
 120 # bar is the third entry in the .got section, so offset will be 8 - 0x7FF0.
 121 # rtdyld-check:  decode_operand(insn8, 2)[15:0] = 0x8018
 122 #
 123 # Check that the global offset table contains the address of the bar.
 124 # rtdyld-check: *{4}(section_addr(test_ELF_N32.o, .got) + 8) = bar
 125 insn8:
 126         ld      $2, %call16(bar)($1)
 127
 128         move     $4, $25
 129         move     $gp, $1
 130         move     $25, $2
 131         jalr    $25
 132         nop
 133         move     $sp, $fp
 134         ld      $gp, 8($sp)
 135         ld      $fp, 16($sp)
 136         ld      $ra, 24($sp)
 137         daddiu  $sp, $sp, 32
 138         jr      $ra
 139         nop
 140         .set    at
 141         .set    macro
 142         .set    reorder
 143         .end    main
 144 $func_end1:
 145         .size   main, ($func_end1)-main
 146
 147         .type   _str,@object
 148         .section        .rodata.str1.1,"aMS",@progbits,1
 149 _str:
 150         .asciz  "test"
 151         .size   _str, 5
 152
 153         .type   var,@object
 154         .comm   var,8,8
 155
 156         .section        ".note.GNU-stack","",@progbits
 157         .text