wasm2c1

Usage

Overview

wasm2c Read a file in the WebAssembly binary format, and convert it to a C source file and header.

The options are as follows:

--help

Print this help message

--version

Print version information

-v, --verbose

Use multiple times for more info

-o, --output=FILENAME

Output file for the generated C source file, by default use stdout

--num-outputs=NUM

Number of output files to write

-n, --module-name=MODNAME

Unique name for the module being generated. This name is prefixed toeach of the generated C symbols. By default, the module name from thenames section is used. If that is not present the name of the inputfile is used as the default.

--disable-exceptions

Disable Experimental exception handling

--disable-mutable-globals

Disable Import/export mutable globals

--disable-saturating-float-to-int

Disable Saturating float-to-int operators

--disable-sign-extension

Disable Sign-extension operators

--disable-simd

Disable SIMD support

--enable-threads

Enable Threading support

--enable-function-references

Enable Typed function references

--disable-multi-value

Disable Multi-value

--disable-tail-call

Disable Tail-call support

--disable-bulk-memory

Disable Bulk-memory operations

--disable-reference-types

Disable Reference types (externref)

--disable-annotations

Disable Custom annotation syntax

--enable-code-metadata

Enable Code metadata

--enable-gc

Enable Garbage collection

--disable-memory64

Disable 64-bit memory

--disable-multi-memory

Disable Multi-memory

--disable-extended-const

Disable Extended constant expressions

--disable-relaxed-simd

Disable Relaxed SIMD

--enable-custom-page-sizes

Enable Custom page sizes

--enable-compact-imports

Enable Compact import section

--enable-wide-arithmetic

Enable Wide arithmetic

--enable-all

Enable all features

Examples

parse binary file test.wasm and write test.c and test.h

$ wasm2c test.wasm -o test.c

parse test.wasm, write test.c and test.h, but ignore the debug names, if any

$ wasm2c test.wasm --no-debug-names -o test.c