lld/test/wasm/command-exports.s

   1 # RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
   2 # RUN: wasm-ld --no-entry %t.o -o %t.wasm
   3 # RUN: obj2yaml %t.wasm | FileCheck %s
   4
   5 # This test defines a command with two exported functions, as well as a static
   6 # constructor and a static destructor. Check that the exports, constructor, and
   7 # destructor are all set up properly.
   8
   9         .globl  foo_i32
  10 foo_i32:
  11         .functype       foo_i32 (i32, i32) -> (i32)
  12         local.get       0
  13         local.get       1
  14         i32.add
  15         end_function
  16
  17         .globl  foo_f64
  18 foo_f64:
  19         .functype       foo_f64 (f64, f64) -> (f64)
  20         local.get       0
  21         local.get       1
  22         f64.add
  23         end_function
  24
  25         .globl  some_ctor
  26 some_ctor:
  27         .functype       some_ctor () -> ()
  28         end_function
  29
  30         .globl  some_dtor
  31 some_dtor:
  32         .functype       some_dtor () -> ()
  33         end_function
  34
  35         .hidden __cxa_atexit
  36         .globl  __cxa_atexit
  37 __cxa_atexit:
  38         .functype       __cxa_atexit (i32, i32, i32) -> (i32)
  39         i32.const       0
  40         end_function
  41
  42         .section        .text..Lcall_dtors.1,"",@
  43 .Lcall_dtors.1:
  44         .functype       .Lcall_dtors.1 (i32) -> ()
  45         call    some_dtor
  46         end_function
  47
  48         .section        .text..Lregister_call_dtors.1,"",@
  49 .Lregister_call_dtors.1:
  50         .functype       .Lregister_call_dtors.1 () -> ()
  51         block
  52         i32.const       .Lcall_dtors.1
  53         i32.const       0
  54         i32.const       0
  55         call    __cxa_atexit
  56         i32.eqz
  57         br_if           0
  58         unreachable
  59 .LBB6_2:
  60         end_block
  61         end_function
  62
  63         .section        .init_array.1,"",@
  64         .p2align        2
  65         .int32  some_ctor
  66         .int32  .Lregister_call_dtors.1
  67         .export_name    foo_i32, foo_i32
  68         .export_name    foo_f64, foo_f64
  69
  70 # CHECK:       - Type:            EXPORT
  71 # CHECK-NEXT:    Exports:
  72 # CHECK-NEXT:      - Name:            memory
  73 # CHECK-NEXT:        Kind:            MEMORY
  74 # CHECK-NEXT:        Index:           0
  75 # CHECK-NEXT:      - Name:            foo_i32
  76 # CHECK-NEXT:        Kind:            FUNCTION
  77 # CHECK-NEXT:        Index:           8
  78 # CHECK-NEXT:      - Name:            foo_f64
  79 # CHECK-NEXT:        Kind:            FUNCTION
  80 # CHECK-NEXT:        Index:           9
  81
  82 # CHECK:       - Type:            CODE
  83
  84 # CHECK:           - Index:           8
  85 # CHECK-NEXT:        Locals:          []
  86 # CHECK-NEXT:        Body:            10002000200110010B
  87 # CHECK-NEXT:      - Index:           9
  88 # CHECK-NEXT:        Locals:          []
  89 # CHECK-NEXT:        Body:            10002000200110020B
  90
  91 # CHECK:       - Type:            CUSTOM
  92 # CHECK-NEXT:    Name:            name
  93 # CHECK-NEXT:    FunctionNames:
  94 # CHECK-NEXT:      - Index:           0
  95 # CHECK-NEXT:        Name:            __wasm_call_ctors
  96 # CHECK-NEXT:      - Index:           1
  97 # CHECK-NEXT:        Name:            foo_i32
  98 # CHECK-NEXT:      - Index:           2
  99 # CHECK-NEXT:        Name:            foo_f64
 100 # CHECK-NEXT:      - Index:           3
 101 # CHECK-NEXT:        Name:            some_ctor
 102 # CHECK-NEXT:      - Index:           4
 103 # CHECK-NEXT:        Name:            some_dtor
 104 # CHECK-NEXT:      - Index:           5
 105 # CHECK-NEXT:        Name:            __cxa_atexit
 106 # CHECK-NEXT:      - Index:           6
 107 # CHECK-NEXT:        Name:            .Lcall_dtors.1
 108 # CHECK-NEXT:      - Index:           7
 109 # CHECK-NEXT:        Name:            .Lregister_call_dtors.1
 110 # CHECK-NEXT:      - Index:           8
 111 # CHECK-NEXT:        Name:            foo_i32.command_export
 112 # CHECK-NEXT:      - Index:           9
 113 # CHECK-NEXT:        Name:            foo_f64.command_export