lld/test/ELF/gc-sections-linkorder-err.s

   1 # REQUIRES: x86
   2
   3 ## Error if the linked-to section of an input section is discarded.
   4
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
   6 # RUN: not ld.lld --gc-sections --print-gc-sections %t.o -o /dev/null 2>&1 | FileCheck %s
   7
   8 # CHECK:      removing unused section {{.*}}.o:(.foo0)
   9 # CHECK-NEXT: error: {{.*}}.o:(.bar): sh_link points to discarded section {{.*}}.o:(.foo0)
  10 # CHECK-NEXT: error: {{.*}}.o:(.baz): sh_link points to discarded section {{.*}}.o:(.foo0)
  11
  12 .globl _start
  13 _start:
  14   call .foo1
  15   call bar0
  16   call bar1
  17   call baz0
  18   call baz1
  19
  20 .section .foo0,"a"
  21 .section .foo1,"a"
  22
  23 ## The linked-to section of the first input section is discarded.
  24 .section .bar,"ao",@progbits,.foo0,unique,0
  25 bar0:
  26 .byte 0
  27 .section .bar,"ao",@progbits,.foo1,unique,1
  28 bar1:
  29 .byte 1
  30
  31 ## Another case: the linked-to section of the second input section is discarded.
  32 .section .baz,"ao",@progbits,.foo1,unique,0
  33 baz0:
  34 .byte 0
  35 .section .baz,"ao",@progbits,.foo0,unique,1
  36 baz1:
  37 .byte 1