lld/test/wasm/export-optional.s

   1 # Test the --export of optional linker-synthetic symbols works.
   2 # Specifically the __start_xxx and __end_xx symbols.
   3
   4 # RUN: llvm-mc -filetype=obj -triple=wasm32-unknown-unknown %s -o %t.o
   5 # RUN: wasm-ld --export=__start_foo %t.o -o %t.wasm
   6 # RUN: obj2yaml %t.wasm | FileCheck %s
   7
   8   .globl  _start
   9 _start:
  10   .functype _start () -> ()
  11   i32.const 0
  12   i32.load foo
  13   drop
  14   end_function
  15
  16   .globl  foo
  17   .section    foo,"",@
  18 foo:
  19   .int32 42
  20   .size foo, 4
  21
  22 #      CHECK:  - Type:            EXPORT
  23 # CHECK-NEXT:    Exports:
  24 # CHECK-NEXT:      - Name:            memory
  25 # CHECK-NEXT:        Kind:            MEMORY
  26 # CHECK-NEXT:        Index:           0
  27 # CHECK-NEXT:      - Name:            _start
  28 # CHECK-NEXT:        Kind:            FUNCTION
  29 # CHECK-NEXT:        Index:           0
  30 # CHECK-NEXT:      - Name:            __start_foo
  31 # CHECK-NEXT:        Kind:            GLOBAL
  32 # CHECK-NEXT:        Index:           1