lld/test/ELF/mips-plt-copy.s

   1 # REQUIRES: mips
   2 # Check creating of R_MIPS_COPY and R_MIPS_JUMP_SLOT dynamic relocations
   3 # and corresponding PLT entries.
   4
   5 # RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t.o
   6 # RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
   7 # RUN:         %S/Inputs/mips-dynamic.s -o %t.so.o
   8 # RUN: ld.lld %t.so.o -shared -soname=t.so -o %t.so
   9 # RUN: ld.lld %t.o %t.so -o %t.exe
  10 # RUN: llvm-readobj -r -A %t.exe | FileCheck %s
  11
  12 # CHECK:      Relocations [
  13 # CHECK-NEXT:   Section ({{.*}}) .rel.dyn {
  14 # CHECK-DAG:      0x{{[0-9A-F]+}} R_MIPS_COPY data0
  15 # CHECK-DAG:      0x{{[0-9A-F]+}} R_MIPS_COPY data1
  16 # CHECK-NEXT:   }
  17 # CHECK-NEXT:   Section ({{.*}}) .rel.plt {
  18 # CHECK-DAG:      0x{{[0-9A-F]+}} R_MIPS_JUMP_SLOT foo0
  19 # CHECK-DAG:      0x{{[0-9A-F]+}} R_MIPS_JUMP_SLOT foo1
  20 # CHECK-NEXT:   }
  21 # CHECK-NEXT: ]
  22
  23 # CHECK:      Primary GOT {
  24 # CHECK:        Local entries [
  25 # CHECK-NEXT:   ]
  26 # CHECK-NEXT:   Global entries [
  27 # CHECK-NEXT:   ]
  28 # CHECK-NEXT:   Number of TLS and multi-GOT entries: 0
  29 # CHECK-NEXT: }
  30
  31 # CHECK:      PLT GOT {
  32 # CHECK:        Entries [
  33 # CHECK-NEXT:     Entry {
  34 # CHECK-NEXT:       Address: 0x{{[0-9A-F]+}}
  35 # CHECK-NEXT:       Initial: 0x{{[0-9A-F]+}}
  36 # CHECK-NEXT:       Value: 0x{{[0-9A-F]+}}
  37 # CHECK-NEXT:       Type: Function
  38 # CHECK-NEXT:       Section: Undefined
  39 # CHECK-NEXT:       Name: foo0
  40 # CHECK-NEXT:     }
  41 # CHECK-NEXT:     Entry {
  42 # CHECK-NEXT:       Address: 0x{{[0-9A-F]+}}
  43 # CHECK-NEXT:       Initial: 0x{{[0-9A-F]+}}
  44 # CHECK-NEXT:       Value: 0x{{[0-9A-F]+}}
  45 # CHECK-NEXT:       Type: Function
  46 # CHECK-NEXT:       Section: Undefined
  47 # CHECK-NEXT:       Name: foo1
  48 # CHECK-NEXT:     }
  49 # CHECK-NEXT:   ]
  50 # CHECK-NEXT: }
  51
  52   .text
  53   .globl __start
  54 __start:
  55   lui    $t0,%hi(foo0)     # R_MIPS_HI16 requires JUMP_SLOT/PLT entry
  56                            # for DSO defined func.
  57   addi   $t0,$t0,%lo(foo0)
  58   lui    $t0,%hi(bar)      # Does not require PLT for locally defined func.
  59   addi   $t0,$t0,%lo(bar)
  60   lui    $t0,%hi(loc)      # Does not require PLT for local func.
  61   addi   $t0,$t0,%lo(loc)
  62
  63   lui    $t0,%hi(data0)    # R_MIPS_HI16 requires COPY rel for DSO defined data.
  64   addi   $t0,$t0,%lo(data0)
  65   lui    $t0,%hi(gd)       # Does not require COPY rel for locally defined data.
  66   addi   $t0,$t0,%lo(gd)
  67   lui    $t0,%hi(ld)       # Does not require COPY rel for local data.
  68   addi   $t0,$t0,%lo(ld)
  69
  70   .globl bar
  71   .type  bar, @function
  72 bar:
  73   nop
  74 loc:
  75   nop
  76
  77   .rodata
  78   .globl gd
  79 gd:
  80   .word 0
  81 ld:
  82   .word data1+8            # R_MIPS_32 requires REL32 dnamic relocation
  83                            # for DSO defined data. For now we generate COPY one.
  84   .word foo1+8             # R_MIPS_32 requires PLT entry for DSO defined func.