lld/test/MachO/export-trie.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o
   3
   4 ## We are intentionally building an executable here instead of a dylib / bundle
   5 ## in order that the `__PAGEZERO` segment is present, which in turn means that
   6 ## the image base starts at a non-zero address. This allows us to verify that
   7 ## addresses in the export trie are correctly encoded as relative to the image
   8 ## base.
   9 # RUN: %lld %t.o -o %t
  10
  11 # RUN: llvm-objdump --syms --exports-trie %t | FileCheck %s --check-prefix=EXPORTS
  12 # EXPORTS-LABEL: SYMBOL TABLE:
  13 # EXPORTS-DAG:   [[#%x, MAIN_ADDR:]] {{.*}} _main
  14 # EXPORTS-DAG:   [[#%x, HELLO_ADDR:]] {{.*}} _hello
  15 # EXPORTS-DAG:   [[#%x, HELLO_WORLD_ADDR:]] {{.*}} _hello_world
  16 # EXPORTS-DAG:   [[#%x, HELLO_ITS_ME_ADDR:]] {{.*}} _hello_its_me
  17 # EXPORTS-DAG:   [[#%x, HELLO_ITS_YOU_ADDR:]] {{.*}} _hello_its_you
  18 # EXPORTS-DAG:   [[#%x, HEADER_ADDR:]] g F __TEXT,__text __mh_execute_header
  19 # EXPORTS-LABEL: Exports trie:
  20 # EXPORTS-DAG:   0x{{0*}}[[#%X, HEADER_ADDR]] __mh_execute_header
  21 # EXPORTS-DAG:   0x{{0*}}[[#%X, MAIN_ADDR]] _main
  22 # EXPORTS-DAG:   0x{{0*}}[[#%X, HELLO_ADDR]] _hello
  23 # EXPORTS-DAG:   0x{{0*}}[[#%X, HELLO_WORLD_ADDR]] _hello_world
  24 # EXPORTS-DAG:   0x{{0*}}[[#%x, HELLO_ITS_ME_ADDR:]] _hello_its_me
  25 # EXPORTS-DAG:   0x{{0*}}[[#%x, HELLO_ITS_YOU_ADDR:]] _hello_its_you
  26
  27 ## Check that we are sharing prefixes in the trie.
  28 # RUN: obj2yaml %t | FileCheck %s
  29 # CHECK-LABEL: ExportTrie:
  30 # CHECK: Name: ''
  31 # CHECK: Name: _
  32 # CHECK-DAG: Name: _mh_execute_header
  33 # CHECK-DAG: Name: main
  34 # CHECK-DAG: Name: hello
  35 # CHECK: Name: _
  36 # CHECK: Name: world
  37 # CHECK: Name: its_
  38 # CHECK-DAG: Name: you
  39 # CHECK-DAG: Name: me
  40
  41
  42
  43 .section __TEXT,__cstring
  44 .globl _hello, _hello_world, _hello_its_me, _hello_its_you, _main
  45
  46 ## Test for when an entire symbol name is a prefix of another.
  47 _hello:
  48 .asciz "Hello!\n"
  49
  50 _hello_world:
  51 .asciz "Hello world!\n"
  52
  53 .data
  54 _hello_its_me:
  55 .asciz "Hello, it's me\n"
  56
  57 _hello_its_you:
  58 .asciz "Hello, it's you\n"
  59
  60 _main:
  61   ret