lld/test/ELF/linkerscript/merge-sections.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
   3
   4 # RUN: echo "SECTIONS { \
   5 # RUN:   . = SIZEOF_HEADERS; \
   6 # RUN:   .foo : { begin = .; *(.foo.*) end = .;} \
   7 # RUN: }" > %t.script
   8 # RUN: ld.lld -o %t1 --script %t.script %t -shared
   9 # RUN: llvm-readobj -S --symbols %t1 | FileCheck %s
  10
  11 # CHECK:        Name: .foo
  12 # CHECK-NEXT:   Type: SHT_PROGBITS
  13 # CHECK-NEXT:   Flags [
  14 # CHECK-NEXT:     SHF_ALLOC
  15 # CHECK-NEXT:     SHF_MERGE
  16 # CHECK-NEXT:     SHF_STRINGS
  17 # CHECK-NEXT:   ]
  18 # CHECK-NEXT:   Address: 0x[[ADDR1:.*]]
  19 # CHECK-NEXT:   Offset: 0x[[ADDR1]]
  20 # CHECK-NEXT:   Size: 8
  21 # CHECK-NEXT:   Link: 0
  22 # CHECK-NEXT:   Info: 0
  23 # CHECK-NEXT:   AddressAlignment: 2
  24 # CHECK-NEXT:   EntrySize: 0
  25 # CHECK-NEXT: }
  26
  27 # CHECK:      Name: begin
  28 # CHECK-NEXT: Value: 0x[[ADDR1]]
  29
  30 # CHECK:      Name: end
  31 # CHECK-NEXT: Value: 0x268
  32
  33 # Check that we don't crash with --gc-sections
  34 # RUN: ld.lld --gc-sections -o %t2 --script %t.script %t -shared
  35 # RUN: llvm-readobj -S --symbols %t2 | FileCheck %s --check-prefix=GC
  36
  37 # GC:        Name: .foo
  38 # GC-NEXT:   Type: SHT_PROGBITS
  39 # GC-NEXT:   Flags [
  40 # GC-NEXT:     SHF_ALLOC
  41 # GC-NEXT:   ]
  42
  43 .section        .foo.1a,"aMS",@progbits,1
  44 .asciz "foo"
  45
  46 .section        .foo.1b,"aMS",@progbits,1
  47 .asciz "foo"
  48
  49 .section        .foo.2a,"aM",@progbits,1
  50 .byte 42
  51
  52 .section        .foo.2b,"aM",@progbits,1
  53 .byte 42
  54
  55 .section        .foo.3a,"aM",@progbits,2
  56 .align 2
  57 .short 42
  58
  59 .section        .foo.3b,"aM",@progbits,2
  60 .align 2
  61 .short 42