lld/test/ELF/linkerscript/sort-init.s

   1 # REQUIRES: x86
   2 ## Test SORT_BY_INIT_PRIORITY can be used to convert .ctors into .init_array
   3
   4 # RUN: split-file %s %t
   5 # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/asm -o %t.o
   6 # RUN: ld.lld -T %t/lds %t.o -o %t.out
   7 # RUN: llvm-readelf -x .init_array %t.out | FileCheck %s
   8
   9 # CHECK:      Hex dump of section '.init_array':
  10 # CHECK-NEXT: 0x00000001 00010203 04050607
  11
  12 ## Test REVERSE can be used to reverse the order of .init_array and .ctors
  13
  14 # RUN: ld.lld -T %t/reverse.lds %t.o -o %t2.out
  15 # RUN: llvm-readelf -x .init_array %t2.out | FileCheck %s --check-prefix=CHECK2
  16
  17 # CHECK2:      Hex dump of section '.init_array':
  18 # CHECK2-NEXT: 0x00000001 04030201 00050706
  19
  20 #--- asm
  21 .globl _start
  22 _start:
  23   nop
  24
  25 .section foo, "aw", @init_array
  26   .byte 5
  27
  28 .section .ctors.65435, "a"
  29   .byte 3
  30 .section .init_array.100, "aw", @init_array
  31   .byte 4
  32
  33 .section .init_array.7, "aw", @init_array
  34   .byte 2
  35 .section .ctors.65529,"a"
  36   .byte 1
  37 .section .init_array.5, "aw", @init_array
  38   .byte 0
  39
  40 .section .init_array, "aw", @init_array
  41   .byte 6
  42 .section .ctors, "a"
  43   .byte 7
  44
  45 #--- lds
  46 SECTIONS {
  47   .init_array : {
  48     *(SORT_BY_INIT_PRIORITY(.init_array.* .ctors.*) SORT_BY_INIT_PRIORITY(foo*))
  49     *(.init_array .ctors)
  50   }
  51 }
  52
  53 #--- reverse.lds
  54 SECTIONS {
  55   .init_array : {
  56     *(REVERSE(SORT_BY_INIT_PRIORITY(.init_array.* .ctors.*)) SORT_BY_INIT_PRIORITY(foo*))
  57     *(REVERSE(.init_array .ctors))
  58   }
  59 }