test/ELF/startstop.s

   1 // REQUIRES: x86
   2 // RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
   3 // RUN: ld.lld --hash-style=sysv %t -o %tout -shared
   4 // RUN: llvm-objdump -d %tout | FileCheck -check-prefix=DISASM %s
   5 // RUN: llvm-readobj -symbols -r %tout | FileCheck -check-prefix=SYMBOL %s
   6
   7 // DISASM: _start:
   8 // DISASM:    1000:       {{.*}}  callq   10
   9 // DISASM:    1005:       {{.*}}  callq   8
  10 // DISASM:    100a:       {{.*}}  callq   3
  11 // DISASM: Disassembly of section foo:
  12 // DISASM: __start_foo:
  13 // DISASM:    100f:       90      nop
  14 // DISASM:    1010:       90      nop
  15 // DISASM:    1011:       90      nop
  16 // DISASM: Disassembly of section bar:
  17 // DISASM: __start_bar:
  18 // DISASM:    1012:       90      nop
  19 // DISASM:    1013:       90      nop
  20 // DISASM:    1014:       90      nop
  21
  22 // SYMBOL:      Relocations [
  23 // SYMBOL-NEXT:   Section ({{.*}}) .rela.dyn {
  24 // SYMBOL-NEXT:     R_X86_64_RELATIVE
  25 // SYMBOL-NEXT:     R_X86_64_RELATIVE
  26 // SYMBOL-NEXT:     R_X86_64_RELATIVE
  27 // SYMBOL-NEXT:     R_X86_64_RELATIVE
  28 // SYMBOL-NEXT:   }
  29 // SYMBOL-NEXT: ]
  30
  31 // SYMBOL: Symbol {
  32 // SYMBOL:   Name: __start_bar
  33 // SYMBOL:   Value: 0x1012
  34 // SYMBOL:   STV_HIDDEN
  35 // SYMBOL:   Section: bar
  36 // SYMBOL: }
  37 // SYMBOL-NOT:   Section: __stop_bar
  38 // SYMBOL: Symbol {
  39 // SYMBOL:   Name: __start_foo
  40 // SYMBOL:   Value: 0x100F
  41 // SYMBOL:   STV_HIDDEN
  42 // SYMBOL:   Section: foo
  43 // SYMBOL: }
  44 // SYMBOL: Symbol {
  45 // SYMBOL:   Name: __stop_foo
  46 // SYMBOL:   Value: 0x1012
  47 // SYMBOL:   STV_HIDDEN
  48 // SYMBOL:   Section: foo
  49 // SYMBOL: }
  50
  51 // SYMBOL: Symbol {
  52 // SYMBOL:   Name: __stop_zed1
  53 // SYMBOL:   Value: 0x2010
  54 // SYMBOL:   STV_PROTECTED
  55 // SYMBOL:   Section: zed1
  56 // SYMBOL: }
  57 // SYMBOL: Symbol {
  58 // SYMBOL:   Name: __stop_zed2
  59 // SYMBOL:   Value: 0x2020
  60 // SYMBOL:   STV_PROTECTED
  61 // SYMBOL:   Section: zed2
  62 // SYMBOL: }
  63
  64 .hidden __start_foo
  65 .hidden __stop_foo
  66 .hidden __start_bar
  67 .global _start
  68 .text
  69 _start:
  70         call __start_foo
  71         call __stop_foo
  72         call __start_bar
  73
  74 .section foo,"ax"
  75         nop
  76         nop
  77         nop
  78
  79 .section bar,"ax"
  80         nop
  81         nop
  82         nop
  83
  84 .section zed1, "aw"
  85         .quad __stop_zed2
  86         .quad __stop_zed2 + 1
  87
  88 .section zed2, "aw"
  89         .quad __stop_zed1
  90         .quad __stop_zed1 + 1