lld/test/ELF/mips-got-and-copy.s

   1 # REQUIRES: mips
   2
   3 # If there are two relocations such that the first one requires
   4 # dynamic COPY relocation, the second one requires GOT entry
   5 # creation, linker should create both - dynamic relocation
   6 # and GOT entry.
   7
   8 # RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux \
   9 # RUN:         %S/Inputs/mips-dynamic.s -o %t.so.o
  10 # RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t.o
  11 # RUN: ld.lld %t.so.o -shared -o %t.so
  12 # RUN: ld.lld %t.o %t.so -o %t.exe
  13 # RUN: llvm-readobj -r -A %t.exe | FileCheck %s
  14
  15 # CHECK:      Relocations [
  16 # CHECK-NEXT:   Section (7) .rel.dyn {
  17 # CHECK-NEXT:     0x[[DATA0:[0-9A-F]+]] R_MIPS_COPY data0
  18 # CHECK-NEXT:     0x[[DATA1:[0-9A-F]+]] R_MIPS_COPY data1
  19 # CHECK-NEXT:   }
  20 # CHECK-NEXT: ]
  21
  22 # CHECK:      Primary GOT {
  23 # CHECK-NEXT:   Canonical gp value:
  24 # CHECK-NEXT:   Reserved entries [
  25 # CHECK:        ]
  26 # CHECK-NEXT:   Local entries [
  27 # CHECK-NEXT:   ]
  28 # CHECK-NEXT:   Global entries [
  29 # CHECK-NEXT:     Entry {
  30 # CHECK-NEXT:       Address:
  31 # CHECK-NEXT:       Access: -32744
  32 # CHECK-NEXT:       Initial: 0x[[DATA0]]
  33 # CHECK-NEXT:       Value: 0x[[DATA0]]
  34 # CHECK-NEXT:       Type: Object
  35 # CHECK-NEXT:       Section: .bss
  36 # CHECK-NEXT:       Name: data0
  37 # CHECK-NEXT:     }
  38 # CHECK-NEXT:     Entry {
  39 # CHECK-NEXT:       Address:
  40 # CHECK-NEXT:       Access: -32740
  41 # CHECK-NEXT:       Initial: 0x[[DATA1]]
  42 # CHECK-NEXT:       Value: 0x[[DATA1]]
  43 # CHECK-NEXT:       Type: Object
  44 # CHECK-NEXT:       Section: .bss
  45 # CHECK-NEXT:       Name: data1
  46 # CHECK-NEXT:     }
  47 # CHECK-NEXT:   ]
  48 # CHECK-NEXT:   Number of TLS and multi-GOT entries: 0
  49 # CHECK-NEXT: }
  50
  51   .text
  52   .global __start
  53 __start:
  54   # Case A: 'got' relocation goes before 'copy' relocation
  55   lui    $t0,%hi(data0)         # R_MIPS_HI16 - requires R_MISP_COPY relocation
  56   addi   $t0,$t0,%lo(data0)
  57   lw     $t0,%got(data0)($gp)   # R_MIPS_GOT16 - requires GOT entry
  58
  59   # Case B: 'copy' relocation goes before 'got' relocation
  60   lw     $t0,%got(data1)($gp)   # R_MIPS_GOT16 - requires GOT entry
  61   lui    $t0,%hi(data1)         # R_MIPS_HI16 - requires R_MISP_COPY relocation
  62   addi   $t0,$t0,%lo(data1)