lld/test/ELF/i386-zrel-zrela.s

   1 # REQUIRES: x86
   2 ## The i386 psABI uses Elf64_Rela relocation entries. We produce
   3 ## Elf32_Rel dynamic relocations by default, but can use Elf32_Rela with -z rela.
   4
   5 # RUN: llvm-mc -filetype=obj -triple=i386 %s -o %t.o
   6 # RUN: ld.lld -shared %t.o -o %t.so --noinhibit-exec
   7 # RUN: llvm-readobj -d -r -x .data -x .got.plt %t.so | FileCheck --check-prefix=REL %s
   8 # RUN: ld.lld -shared -z rel %t.o -o %t1.so
   9 # RUN: llvm-readobj -d -r -x .data -x .got.plt %t1.so | FileCheck --check-prefix=REL %s
  10
  11 # REL:      REL      {{.*}}
  12 # REL-NEXT: RELSZ    32 (bytes)
  13 # REL-NEXT: RELENT   8 (bytes)
  14 # REL-NEXT: RELCOUNT 1
  15 # REL-NEXT: JMPREL   {{.*}}
  16 # REL-NEXT: PLTRELSZ 8 (bytes)
  17 # REL-NEXT: PLTGOT   {{.*}}
  18 # REL-NEXT: PLTREL   REL{{$}}
  19 # REL:      .rel.dyn {
  20 # REL-NEXT:   R_386_RELATIVE -
  21 # REL-NEXT:   R_386_GLOB_DAT func
  22 # REL-NEXT:   R_386_TLS_TPOFF tls
  23 # REL-NEXT:   R_386_32 _start
  24 # REL-NEXT: }
  25 # REL-NEXT: .rel.plt {
  26 # REL-NEXT:   R_386_JUMP_SLOT func
  27 # REL-NEXT: }
  28
  29 # REL-LABEL: Hex dump of section '.data':
  30 # REL-NEXT:  0x000042d0 d0420000 2a000000
  31 ##                       ^--- R_386_RELATIVE addend (0x42d0)
  32 ##                                ^--- R_386_32 addend (0x2a)
  33 # REL-LABEL: Hex dump of section '.got.plt':
  34 # REL-NEXT:  0x000042d8 48320000 00000000 00000000 36120000
  35 ##  R_386_JUMP_SLOT target (0x1236) ---------------^
  36
  37 # RUN: ld.lld -shared -z rel -z rela %t.o -o %t2.so
  38 # RUN: llvm-readobj -d -r -x .data -x .got.plt %t2.so | FileCheck --check-prefix=RELA %s
  39
  40 # RELA:      RELA      {{.*}}
  41 # RELA-NEXT: RELASZ    48 (bytes)
  42 # RELA-NEXT: RELAENT   12 (bytes)
  43 # RELA-NEXT: RELACOUNT 1
  44 # RELA-NEXT: JMPREL    {{.*}}
  45 # RELA-NEXT: PLTRELSZ  12 (bytes)
  46 # RELA-NEXT: PLTGOT    {{.*}}
  47 # RELA-NEXT: PLTREL    RELA
  48 # RELA:      .rela.dyn {
  49 # RELA-NEXT:   R_386_RELATIVE - 0x42F0
  50 # RELA-NEXT:   R_386_GLOB_DAT func 0x0
  51 # RELA-NEXT:   R_386_TLS_TPOFF tls 0x0
  52 # RELA-NEXT:   R_386_32 _start 0x2A
  53 # RELA-NEXT: }
  54 # RELA-NEXT: .rela.plt {
  55 # RELA-NEXT:   R_386_JUMP_SLOT func 0x0
  56 # RELA-NEXT: }
  57
  58 # RELA-LABEL: Hex dump of section '.data':
  59 # RELA-NEXT:  0x000042f0 00000000 2a000000
  60 ##                                ^--- R_386_32 addend (0x2a)
  61 ## TODO: we should probably clear the R_386_32 addend that was copied from the .o?
  62 ## no addend written for R_386_RELATIVE
  63 # RELA-LABEL: Hex dump of section '.got.plt':
  64 # RELA-NEXT:  0x000042f8 68320000 00000000 00000000 56120000
  65 ##  R_386_JUMP_SLOT target (0x1256) ----------------^
  66
  67 .globl _start
  68 _start:
  69   call func@PLT
  70   movl func@GOT(%eax), %eax
  71
  72 .section .text1,"awx"
  73   movl tls@GOTNTPOFF(%eax), %eax
  74
  75 .data
  76   .long .data
  77   .long _start+42