lld/test/ELF/linkerscript/unused-synthetic.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
   3 # RUN: echo "SECTIONS { \
   4 # RUN:    .got  : { *(.got) *(.got) } \
   5 # RUN:    .plt  : { *(.plt) } \
   6 # RUN:    .text : { *(.text) } \
   7 # RUN:  }" > %t.script
   8 # RUN: ld.lld -shared -o %t.so --script %t.script %t.o
   9
  10 # RUN: llvm-readelf -S %t.so | FileCheck %s
  11 # CHECK-NOT:  .got
  12 # CHECK-NOT:  .plt
  13 # CHECK:      .dynsym
  14 # CHECK:      .text
  15
  16 # Test that the size of a removed unused synthetic input section is not added
  17 # to the output section size. Adding a symbol assignment prevents removal of
  18 # the output section, but does not cause the section size to be recomputed.
  19 # RUN: echo "SECTIONS { \
  20 # RUN:    .got.plt : { a_sym = .; *(.got.plt) } \
  21 # RUN:  }" > %t2.script
  22 # RUN: ld.lld -shared -o %t2.so --script %t2.script %t.o
  23 # RUN: llvm-objdump --section-headers %t2.so | FileCheck %s --check-prefix=CHECK2
  24 # CHECK2: .got.plt 00000000
  25
  26 .global _start
  27 _start:
  28   nop