lld/test/ELF/linkerscript/symbols.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
   3
   4 # Simple symbol assignment. Should raise conflict in case we
   5 # have duplicates in any input section, but currently simply
   6 # replaces the value.
   7 # RUN: echo "SECTIONS {.text : {*(.text.*)} text_end = .;}" > %t.script
   8 # RUN: ld.lld -o %t1 --script %t.script %t
   9 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=SIMPLE %s
  10 # SIMPLE: .text  0000000000000000 text_end
  11
  12 # The symbol is not referenced. Don't provide it.
  13 # RUN: echo "SECTIONS { PROVIDE(newsym = 1);}" > %t.script
  14 # RUN: ld.lld -o %t1 --script %t.script %t
  15 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
  16 # DONTPROVIDE-NOT: newsym
  17
  18 # The symbol is not referenced. Don't provide it.
  19 # RUN: echo "SECTIONS { PROVIDE_HIDDEN(newsym = 1);}" > %t.script
  20 # RUN: ld.lld -o %t1 --script %t.script %t
  21 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
  22
  23 # Provide existing symbol. The value should be 0, even though we
  24 # have value of 1 in PROVIDE()
  25 # RUN: echo "SECTIONS { PROVIDE(somesym = 1);}" > %t.script
  26 # RUN: ld.lld -o %t1 --script %t.script %t
  27 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=PROVIDE2 %s
  28 # PROVIDE2: 0000000000000000 g       *ABS*  0000000000000000 somesym
  29
  30 # Provide existing symbol. The value should be 0, even though we
  31 # have value of 1 in PROVIDE_HIDDEN(). Visibility should not change
  32 # RUN: echo "SECTIONS { PROVIDE_HIDDEN(somesym = 1);}" > %t.script
  33 # RUN: ld.lld -o %t1 --script %t.script %t
  34 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN2 %s
  35 # HIDDEN2: 0000000000000000 g       *ABS*  0000000000000000 somesym
  36
  37 # Hidden symbol assignment.
  38 # RUN: echo "SECTIONS { HIDDEN(newsym = 1);}" > %t.script
  39 # RUN: ld.lld -o %t1 --script %t.script %t
  40 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN3 %s
  41 # HIDDEN3: 0000000000000001 l       *ABS*  0000000000000000 .hidden newsym
  42
  43 # The symbol is not referenced. Don't provide it.
  44 # RUN: echo "PROVIDE(newsym = 1);" > %t.script
  45 # RUN: ld.lld -o %t1 --script %t.script %t
  46 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
  47
  48 # The symbol is not referenced. Don't provide it.
  49 # RUN: echo "PROVIDE_HIDDEN(newsym = 1);" > %t.script
  50 # RUN: ld.lld -o %t1 --script %t.script %t
  51 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=DONTPROVIDE %s
  52
  53 # Provide existing symbol. The value should be 0, even though we
  54 # have value of 1 in PROVIDE()
  55 # RUN: echo "PROVIDE(somesym = 1);" > %t.script
  56 # RUN: ld.lld -o %t1 --script %t.script %t
  57 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=PROVIDE5 %s
  58 # PROVIDE5: 0000000000000000 g       *ABS*  0000000000000000 somesym
  59
  60 # Provide existing symbol. The value should be 0, even though we
  61 # have value of 1 in PROVIDE_HIDDEN(). Visibility should not change
  62 # RUN: echo "PROVIDE_HIDDEN(somesym = 1);" > %t.script
  63 # RUN: ld.lld -o %t1 --script %t.script %t
  64 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=HIDDEN5 %s
  65 # HIDDEN5: 0000000000000000 g       *ABS*  0000000000000000 somesym
  66
  67 # Simple symbol assignment. All three symbols should have the
  68 # same value.
  69 # RUN: echo "foo = 0x100; SECTIONS { bar = foo; } baz = bar;" > %t.script
  70 # RUN: ld.lld -o %t1 --script %t.script %t
  71 # RUN: llvm-objdump -t %t1 | FileCheck --check-prefix=SIMPLE2 %s
  72 # SIMPLE2: 0000000000000100 g       *ABS*  0000000000000000 foo
  73 # SIMPLE2: 0000000000000100 g       *ABS*  0000000000000000 bar
  74 # SIMPLE2: 0000000000000100 g       *ABS*  0000000000000000 baz
  75
  76 .global _start
  77 _start:
  78  nop
  79
  80 .global somesym
  81 somesym = 0