src/preamble_minimal.js

/**
 * @license
 * Copyright 2019 The Emscripten Authors
 * SPDX-License-Identifier: MIT
 */

#include "runtime_safe_heap.js"

#if ASSERTIONS
/** @type {function(*, string=)} */
function assert(condition, text) {
  if (!condition) throw text;
}
#endif

/** @param {string|number=} what */
function abort(what) {
#if ASSERTIONS
  throw new Error(what);
#else
  throw what;
#endif
}

var tempRet0 = 0;
var setTempRet0 = function(value) {
  tempRet0 = value;
}
var getTempRet0 = function() {
  return tempRet0;
}

function alignUp(x, multiple) {
  if (x % multiple > 0) {
    x += multiple - (x % multiple);
  }
  return x;
}

#if WASM != 2 && MAYBE_WASM2JS
#if !WASM2JS
if (Module['doWasm2JS']) {
#endif
#include "wasm2js.js"
#if !WASM2JS
}
#endif
#endif

#if SINGLE_FILE && WASM == 1 && !WASM2JS
#include "base64Decode.js"
Module['wasm'] = base64Decode('{{{ getQuoted("WASM_BINARY_DATA") }}}');
#endif

#include "runtime_functions.js"
#include "runtime_strings.js"

#if USE_PTHREADS
if (!ENVIRONMENT_IS_PTHREAD) {
#endif

var TOTAL_STACK = {{{ TOTAL_STACK }}},
    STACK_BASE = {{{ getQuoted('STACK_BASE') }}},
    STACKTOP = STACK_BASE,
    STACK_MAX = {{{ getQuoted('STACK_MAX') }}}
    ;

#if ALLOW_MEMORY_GROWTH && MAXIMUM_MEMORY != -1
var wasmMaximumMemory = {{{ MAXIMUM_MEMORY >>> 16 }}};
#else
var wasmMaximumMemory = {{{ INITIAL_MEMORY >>> 16}}};
#endif

var wasmMemory = new WebAssembly.Memory({
  'initial': {{{ INITIAL_MEMORY >>> 16 }}}
#if USE_PTHREADS || !ALLOW_MEMORY_GROWTH || MAXIMUM_MEMORY != -1
  , 'maximum': wasmMaximumMemory
#endif
#if USE_PTHREADS
  , 'shared': true
#endif
  });

var wasmTable;
var buffer = wasmMemory.buffer;

#if USE_PTHREADS
}
#if ASSERTIONS
assert(buffer instanceof SharedArrayBuffer, 'requested a shared WebAssembly.Memory but the returned buffer is not a SharedArrayBuffer, indicating that while the browser has SharedArrayBuffer it does not have WebAssembly threads support - you may need to set a flag');
#endif
#endif

#if ASSERTIONS
var WASM_PAGE_SIZE = {{{ WASM_PAGE_SIZE }}};
#if USE_PTHREADS
if (!ENVIRONMENT_IS_PTHREAD) {
#endif
assert(STACK_BASE % 16 === 0, 'stack must start aligned to 16 bytes, STACK_BASE==' + STACK_BASE);
assert({{{ INITIAL_MEMORY }}} >= TOTAL_STACK, 'INITIAL_MEMORY should be larger than TOTAL_STACK, was ' + {{{ INITIAL_MEMORY }}} + '! (TOTAL_STACK=' + TOTAL_STACK + ')');
assert({{{ INITIAL_MEMORY }}} % WASM_PAGE_SIZE === 0);
#if MAXIMUM_MEMORY != -1
assert({{{ MAXIMUM_MEMORY }}} % WASM_PAGE_SIZE == 0);
#endif
assert(buffer.byteLength === {{{ INITIAL_MEMORY }}});
#if USE_PTHREADS
}
#endif
#endif // ASSERTIONS

#if ALLOW_MEMORY_GROWTH
// In ALLOW_MEMORY_GROWTH, we need to be able to re-initialize the
// typed array buffer and heap views to the buffer whenever the heap
// is resized.
var HEAP8, HEAP16, HEAP32, HEAPU8, HEAPU16, HEAPU32, HEAPF32, HEAPF64;
function updateGlobalBufferAndViews(b) {
  buffer = b;
  HEAP8 = new Int8Array(b);
  HEAP16 = new Int16Array(b);
  HEAP32 = new Int32Array(b);
  HEAPU8 = new Uint8Array(b);
  HEAPU16 = new Uint16Array(b);
  HEAPU32 = new Uint32Array(b);
  HEAPF32 = new Float32Array(b);
  HEAPF64 = new Float64Array(b);
}
updateGlobalBufferAndViews(buffer);
#else
// In non-ALLOW_MEMORY_GROWTH scenario, we only need to initialize
// the heap once, so optimize code size to do it statically here.
var HEAP8 = new Int8Array(buffer);
var HEAP16 = new Int16Array(buffer);
var HEAP32 = new Int32Array(buffer);
var HEAPU8 = new Uint8Array(buffer);
var HEAPU16 = new Uint16Array(buffer);
var HEAPU32 = new Uint32Array(buffer);
var HEAPF32 = new Float32Array(buffer);
var HEAPF64 = new Float64Array(buffer);
#endif

#if USE_PTHREADS && ((MEM_INIT_METHOD == 1 && !MEM_INIT_IN_WASM && !SINGLE_FILE) || USES_DYNAMIC_ALLOC)
if (!ENVIRONMENT_IS_PTHREAD) {
#endif

#if MEM_INIT_METHOD == 1 && !MEM_INIT_IN_WASM && !SINGLE_FILE

#if ASSERTIONS
if (!Module['mem']) throw 'Must load memory initializer as an ArrayBuffer in to variable Module.mem before adding compiled output .js script to the DOM';
#endif
HEAPU8.set(new Uint8Array(Module['mem']), {{{ GLOBAL_BASE }}});

#endif

#if USE_PTHREADS && ((MEM_INIT_METHOD == 1 && !MEM_INIT_IN_WASM && !SINGLE_FILE) || USES_DYNAMIC_ALLOC)
}
#endif

#include "runtime_stack_check.js"
#include "runtime_assertions.js"

#if LOAD_SOURCE_MAP
var wasmSourceMap;
#include "source_map_support.js"
#endif

#if USE_OFFSET_CONVERTER
var wasmOffsetConverter;
#include "wasm_offset_converter.js"
#endif

#if EXIT_RUNTIME
var __ATEXIT__    = []; // functions called during shutdown
#endif

#if ASSERTIONS
var runtimeInitialized = false;

// This is always false in minimal_runtime - the runtime does not have a concept of exiting (keeping this variable here for now since it is referenced from generated code)
var runtimeExited = false;
#endif

#include "runtime_math.js"

var memoryInitializer = null;

#include "memoryprofiler.js"

#include "runtime_debug.js"

// === Body ===