darwin/amd64: dyld: 'BinaryenTypeCreate' missing symbol called

Open
#4,436 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
c, macos, wasm
Domain
compilers

Research direction

Reproduce the example from main.c with version 104 using clang main.c libbinaryen.dylib on darwin/amd64. Start by checking the Binaryen C API declaration in binaryen-c.h and the symbols provided by libbinaryen.dylib; done means the sample runs without dyld reporting BinaryenTypeCreate as missing.

Written by the indexing model from the issue text.

Description

# version 104
$ clang main.c libbinaryen.dylib 
$ ./a.out 
dyld[16131]: missing symbol called
Abort trap: 6

main.c:

#include "binaryen-c.h"

// "hello world" type example: create a function that adds two i32s and returns
// the result

int main() {
  BinaryenModuleRef module = BinaryenModuleCreate();

  // Create a function type for  i32 (i32, i32)
  BinaryenType ii[2] = {BinaryenTypeInt32(), BinaryenTypeInt32()};
  BinaryenType params = BinaryenTypeCreate(ii, 2);
  BinaryenType results = BinaryenTypeInt32();

  // Get the 0 and 1 arguments, and add them
  BinaryenExpressionRef x = BinaryenLocalGet(module, 0, BinaryenTypeInt32()),
                        y = BinaryenLocalGet(module, 1, BinaryenTypeInt32());
  BinaryenExpressionRef add = BinaryenBinary(module, BinaryenAddInt32(), x, y);

  // Create the add function
  // Note: no additional local variables
  // Note: no basic blocks here, we are an AST. The function body is just an
  // expression node.
  BinaryenFunctionRef adder =
    BinaryenAddFunction(module, "adder", params, results, NULL, 0, add);

  // Print it out
  BinaryenModulePrint(module);

  // Clean up the module, which owns all the objects we created above
  BinaryenModuleDispose(module);

  return 0;
}
Dominant language
WebAssembly
Stars
8.6k
Forks
885
Avg merge
2d 1h
Merged PRs (30d)
70

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from WebAssembly/binaryen

All issues in WebAssembly/binaryen

Similar issues

More Compilers issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.