FilesExpand file tree

 warn_python_launcher

/

runtime_assertions.js

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

30 lines (28 loc) · 1.52 KB

 warn_python_launcher

/

runtime_assertions.js

Top

File metadata and controls

• Code
• Blame

30 lines (28 loc) · 1.52 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

/**

* @license

* Copyright 2019 The Emscripten Authors

* SPDX-License-Identifier: MIT

*/

#if ASSERTIONS

// Endianness check (note: assumes compiler arch was little-endian)

(function() {

var h16 = new Int16Array(1);

var h8 = new Int8Array(h16.buffer);

h16[0] = 0x6373;

if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian!';

})();

function abortFnPtrError(ptr, sig) {

#if ASSERTIONS >= 2

var possibleSig = '';

for(var x in debug_tables) {

var tbl = debug_tables[x];

if (tbl[ptr]) {

possibleSig += 'as sig "' + x + '" pointing to function ' + tbl[ptr] + ', ';

}

}

abort("Invalid function pointer " + ptr + " called with signature '" + sig + "'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this). This pointer might make sense in another type signature: " + possibleSig);

#else

abort("Invalid function pointer " + ptr + " called with signature '" + sig + "'. Perhaps this is an invalid value (e.g. caused by calling a virtual method on a NULL pointer)? Or calling a function with an incorrect type, which will fail? (it is worth building your source files with -Werror (warnings are errors), as warnings can indicate undefined behavior which can cause this). Build with ASSERTIONS=2 for more info.");

#endif

}

#endif // ASSERTIONS