lld/test/ELF/linkerscript/dot-is-not-abs.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
   3
   4 # RUN: echo "SECTIONS { .text : { *(.text) } foo = .; .bar : { *(.bar) } }" > %t1.script
   5 # RUN: ld.lld -o %t1 --script %t1.script %t.o -shared
   6 # RUN: llvm-readobj --symbols -S --section-data %t1 | FileCheck %s
   7
   8 .hidden foo
   9 .long foo - .
  10
  11 .section .bar, "a"
  12 .long 0
  13
  14 # The symbol foo is defined as a position in the file. This means that it is
  15 # not absolute and it is possible to compute the distance from foo to some other
  16 # position in the file. The symbol is not really in any output section, but
  17 # ELF has no magic constant for not absolute, but not in any section.
  18 # Fortunately the value of a symbol in a non relocatable file is a virtual
  19 # address, so the section can be arbitrary.
  20
  21 # CHECK:      Section {
  22 # CHECK:        Index:
  23 # CHECK:        Name: .text
  24 # CHECK-NEXT:   Type: SHT_PROGBITS
  25 # CHECK-NEXT:   Flags [
  26 # CHECK-NEXT:     SHF_ALLOC
  27 # CHECK-NEXT:     SHF_EXECINSTR
  28 # CHECK-NEXT:   ]
  29 # CHECK-NEXT:   Address: 0x0
  30 # CHECK-NEXT:   Offset:
  31 # CHECK-NEXT:   Size: 4
  32 # CHECK-NEXT:   Link:
  33 # CHECK-NEXT:   Info:
  34 # CHECK-NEXT:   AddressAlignment:
  35 # CHECK-NEXT:   EntrySize:
  36 # CHECK-NEXT:   SectionData (
  37 # CHECK-NEXT:     0000: 04000000 |
  38 # CHECK-NEXT:   )
  39 # CHECK-NEXT: }
  40
  41 # CHECK:      Symbol {
  42 # CHECK:        Name: foo
  43 # CHECK-NEXT:   Value: 0x4
  44 # CHECK-NEXT:   Size: 0
  45 # CHECK-NEXT:   Binding: Local
  46 # CHECK-NEXT:   Type: None
  47 # CHECK-NEXT:   Other [
  48 # CHECK-NEXT:     STV_HIDDEN
  49 # CHECK-NEXT:   ]
  50 # CHECK-NEXT:   Section: .text
  51 # CHECK-NEXT: }