lld/test/wasm/export.s

   1 # Test in default mode
   2 # RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown -o %t.o %s
   3 # RUN: not wasm-ld --export=missing -o %t.wasm %t.o 2>&1 | FileCheck -check-prefix=CHECK-ERROR %s
   4 # RUN: wasm-ld --export=hidden_function -o %t.wasm %t.o
   5 # RUN: obj2yaml %t.wasm | FileCheck %s
   6
   7 # Now test in Emscripten mode
   8 # RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-emscripten -o %t.o %s
   9 # RUN: not wasm-ld --export=missing -o %t.wasm %t.o 2>&1 | FileCheck -check-prefix=CHECK-ERROR %s
  10 # RUN: wasm-ld --export=hidden_function -o %t.wasm %t.o
  11 # RUN: obj2yaml %t.wasm | FileCheck %s --check-prefixes=CHECK,EMSCRIPTEN
  12
  13 # Not exported by default, but forced via commandline
  14   .hidden hidden_function
  15   .globl hidden_function
  16 hidden_function:
  17   .functype hidden_function () -> (i32)
  18   i32.const 0
  19   end_function
  20
  21 # Not exported by default
  22   .globl default_function
  23 default_function:
  24   .functype default_function () -> (i32)
  25   i32.const 0
  26   end_function
  27
  28 # Exported in emscripten mode which treats .no_dead_strip as a signal to export
  29   .no_dead_strip used_function
  30   .globl used_function
  31 used_function:
  32   .functype used_function () -> (i32)
  33   i32.const 0
  34   end_function
  35
  36 # Exported by default
  37 .globl _start
  38 _start:
  39   .functype _start () -> ()
  40   end_function
  41
  42 # CHECK-ERROR: error: symbol exported via --export not found: missing
  43
  44 # CHECK-NOT: - Name: default_function
  45
  46 # CHECK:        - Type:            EXPORT
  47 # CHECK-NEXT:     Exports:
  48 # CHECK-NEXT:       - Name:            memory
  49 # CHECK-NEXT:         Kind:            MEMORY
  50 # CHECK-NEXT:         Index:           0
  51 # CHECK-NEXT:       - Name:            hidden_function
  52 # CHECK-NEXT:         Kind:            FUNCTION
  53 # CHECK-NEXT:         Index:           0
  54 # EMSCRIPTEN-NEXT:  - Name:            used_function
  55 # EMSCRIPTEN-NEXT:    Kind:            FUNCTION
  56 # EMSCRIPTEN-NEXT:    Index:           1
  57 # CHECK-NEXT:       - Name:            _start
  58 # CHECK-NEXT:         Kind:            FUNCTION
  59 # CHECK-NEXT:         Index:           2
  60 # CHECK-NEXT:   - Type:            CODE