lld/test/ELF/symbol-ordering-file.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
   3 # RUN: ld.lld %t.o -o %t.out
   4 # RUN: llvm-objdump -s %t.out| FileCheck %s --check-prefix=BEFORE
   5
   6 # BEFORE:      Contents of section .foo:
   7 # BEFORE-NEXT:  11223344 556677
   8 # BEFORE:      Contents of section .init:
   9 # BEFORE-NEXT:  1122
  10
  11 # RUN: echo "_foo4  " > %t_order.txt
  12 # RUN: echo "  _foo3" >> %t_order.txt
  13 # RUN: echo "_nönascii" >> %t_order.txt
  14 # RUN: echo "_foo5" >> %t_order.txt
  15 # RUN: echo -e " _foo2 \t\v\r\f" >> %t_order.txt
  16 # RUN: echo "# a comment" >> %t_order.txt
  17 # RUN: echo " " >> %t_order.txt
  18 # RUN: echo "_foo4" >> %t_order.txt
  19 # RUN: echo "_bar1" >> %t_order.txt
  20 # RUN: echo "" >> %t_order.txt
  21 # RUN: echo "_foo1" >> %t_order.txt
  22 # RUN: echo "_init2" >> %t_order.txt
  23 # RUN: echo "_init1" >> %t_order.txt
  24
  25 ## Show that both --symbol-ordering-file and --symbol-ordering-file= work.
  26 ## Also show that lines beginning with '#', whitespace and empty lines, are ignored.
  27 ## Also show that "first one wins" when there are duplicate symbols in the order
  28 ## file (a warning will be emitted).
  29 # RUN: ld.lld --symbol-ordering-file %t_order.txt %t.o -o %t2.out 2>&1 | \
  30 # RUN:   FileCheck %s --check-prefix=WARN --implicit-check-not=warning:
  31 # RUN: llvm-objdump -s %t2.out | FileCheck %s --check-prefix=AFTER
  32 # RUN: ld.lld --symbol-ordering-file=%t_order.txt %t.o -o %t2.out
  33 # RUN: llvm-objdump -s %t2.out | FileCheck %s --check-prefix=AFTER
  34
  35 # WARN: warning: {{.*}}.txt: duplicate ordered symbol
  36
  37 # AFTER:      Contents of section .foo:
  38 # AFTER-NEXT:  44337755 662211
  39 # AFTER:      Contents of section .init:
  40 # AFTER-NEXT:  1122
  41
  42 ## Show that a nonexistent symbol ordering file causes an error.
  43 # RUN: not ld.lld --symbol-ordering-file=%t.nonexistent %t.o -o %t3.out 2>&1 | \
  44 # RUN:   FileCheck -DMSG=%errc_ENOENT %s --check-prefix=ERR -DFILE=%t.nonexistent
  45
  46 # ERR: error: cannot open [[FILE]]: [[MSG]]
  47
  48 ## Show that an empty ordering file can be handled (symbols remain in their
  49 ## normal order).
  50 # RUN: touch %t.empty
  51 # RUN: ld.lld --symbol-ordering-file=%t.empty %t.o -o %t4.out
  52 # RUN: llvm-objdump -s %t4.out | FileCheck %s --check-prefix=BEFORE
  53
  54 .section .foo,"ax",@progbits,unique,1
  55 _foo1:
  56  .byte 0x11
  57
  58 .section .foo,"ax",@progbits,unique,2
  59 _foo2:
  60  .byte 0x22
  61
  62 .section .foo,"ax",@progbits,unique,3
  63 _foo3:
  64  .byte 0x33
  65
  66 .section .foo,"ax",@progbits,unique,4
  67 _foo4:
  68  .byte 0x44
  69
  70 .section .foo,"ax",@progbits,unique,5
  71 _foo5:
  72  .byte 0x55
  73 _bar1:
  74  .byte 0x66
  75
  76 .section .foo,"ax",@progbits,unique,6
  77 "_nönascii":
  78 .byte 0x77
  79
  80 .section .init,"ax",@progbits,unique,1
  81 _init1:
  82  .byte 0x11
  83
  84 .section .init,"ax",@progbits,unique,2
  85 _init2:
  86  .byte 0x22
  87
  88 .text
  89 .global _start
  90 _start:
  91     nop