lld/test/ELF/x86-64-combined-dynrel.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc --triple=x86_64-pc-linux -filetype=obj -o %t.o %s
   3 # RUN: echo "SECTIONS { \
   4 # RUN:         .text : { *(.text) } \
   5 # RUN:         .rela.dyn : { *(.rela.dyn) *(.rela.plt) } \
   6 # RUN: } " > %t.script
   7 # RUN: ld.lld %t.o -o %t.so --shared --script %t.script
   8 # RUN: llvm-readobj --section-headers --dynamic-table %t.so | FileCheck %s
   9
  10 // The linker script above combines the .rela.dyn and .rela.plt into a single
  11 // table. ELF is clear that the DT_PLTRELSZ should match the subset of
  12 // relocations that is associated with the PLT. It is less clear about what
  13 // the value of DT_RELASZ should be. ELF implies that it should be the size
  14 // of the single table so that DT_RELASZ includes DT_PLTRELSZ. The loader in
  15 // glibc permits this as long as .rela.plt comes after .rela.dyn in the
  16 // combined table.
  17
  18  .text
  19  .globl func
  20  .type func, %function
  21  .globl foo
  22  .type foo, %object
  23
  24  .globl _start
  25  .type _start, %function
  26 _start:
  27  call func@plt
  28  movq func@GOTPCREL (%rip), %rax
  29
  30 # CHECK:     Name: .rela.dyn
  31 # CHECK-NEXT:         Type: SHT_RELA
  32 # CHECK-NEXT:     Flags [
  33 # CHECK-NEXT:       SHF_ALLOC
  34 # CHECK-NEXT:       SHF_INFO_LINK
  35 # CHECK-NEXT:     ]
  36 # CHECK-NEXT:     Address:
  37 # CHECK-NEXT:     Offset:
  38 # CHECK-NEXT:     Size: 48
  39
  40 # CHECK:  0x0000000000000008 RELASZ               48
  41 # CHECK:  0x0000000000000002 PLTRELSZ             24