author | almikes@aol.com |
Mon, 15 Dec 2014 05:00:04 +0000 | |
changeset 498 | 1a6fa9d619d3 |
parent 223 | da62b8273c12 |
permissions | -rw-r--r-- |
222
bce10fea1e6e
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
221
diff
changeset
|
1 |
#summary This page is a brief introduction of how to get emscripten to work. |
221 | 2 |
#labels emscripten |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
3 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
4 |
= Introduction = |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
5 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
6 |
This guide is not targeted to hedgewars currently but meant to help you set up the environment to get emscripten working. |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
7 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
8 |
= Set Up emscripten = |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
9 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
10 |
You can follow the steps here to set up emscripten: https://github.com/kripken/emscripten/wiki/Tutorial |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
11 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
12 |
Be sure to set up the correct path in ~/.emscripten. The default paths are mostly not suitable for you. |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
13 |
|
220
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
14 |
Building llvm 3.0 from source has one big advantage since you can point the LLVM_ROOT to where you build it, which won't affect your local version (if it is not 3.0). |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
15 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
16 |
= Potential problems = |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
17 |
|
220
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
18 |
# Make sure your node.js is the latest version, earlier versions won't work for some reasons; |
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
19 |
# Make sure the version of your llvm and clang is exactly 3.0. Lower versions won't compile and higher versions may fail in some cases due to the removal of llvm-ld. For Ubuntu users, 11.10 doesn't have pre-built llvm 3.0 packages so you have to build from source files. I haven't tried llvm 3.1 (which should work in theory), but to make it less troublesome, llvm 3.0 is recommended. |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
20 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
21 |
= How to get llvm and clang 3.0 = |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
22 |
|
220
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
23 |
If you can checkout through svn, follow the official guide (checkout release_30 branch): |
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
24 |
|
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
25 |
http://llvm.org/docs/GettingStarted.htm |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
26 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
27 |
If you cannot checkout through svn for some network issues, you can find git mirrors in github here (which should work for everyone): |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
28 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
29 |
https://github.com/llvm-mirror/llvm (checkout release_30 branch) |
220
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
30 |
|
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
31 |
https://github.com/llvm-mirror/clang (checkout release_30 branch) |
220
122b02f4f292
Edited wiki page GettingEmscriptenToWork through web user interface.
xymengxy@gmail.com
parents:
219
diff
changeset
|
32 |
|
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
33 |
https://github.com/llvm-mirror/compiler-rt (checkout release_30 branch) |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
34 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
35 |
Follow the official guide to build from source code (http://llvm.org/docs/GettingStarted.html). |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
36 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
37 |
= Some tests = |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
38 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
39 |
There are a lot of tests in the tests folder. You can refer to (https://github.com/kripken/emscripten/wiki/Tutorial) for more details. |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
40 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
41 |
Here I just give some simple examples. |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
42 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
43 |
(Assume that you are in the emscripten root directory, where you can see the 'emcc' file) |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
44 |
|
221 | 45 |
1. *Hello World* |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
46 |
|
221 | 47 |
{{{ |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
48 |
./emcc tests/hello_world.cpp |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
49 |
node a.out.js |
221 | 50 |
}}} |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
51 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
52 |
You should be able to see "hello world!" in the terminal |
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
53 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
54 |
If you want to have it run in browsers, you can type this (as in official tutorial): |
221 | 55 |
{{{ |
56 |
./emcc tests/hello_world.cpp -o hello.html |
|
57 |
}}} |
|
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
58 |
|
221 | 59 |
2. *Get the glgears to work in browsers* |
60 |
{{{ |
|
61 |
./emcc tests/hello_world_gles.c -o hello_world_gles.html |
|
62 |
}}} |
|
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
63 |
|
221 | 64 |
llvm 3.2+ won't compile this demo. The reason is that this demo uses malloc which has to been compiled first from dlmalloc. However emscripten uses llvm-ld as the linker, which has been removed in llvm 3.2+, and the result is that you will encounter some strange error messages saying that "no such file or directory". If you get this message, check your llvm and clang version. |
65 |
||
66 |
3. *Get the file system to work* |
|
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
67 |
|
221 | 68 |
{{{ |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
69 |
./emcc --preload-file hello_world_file.txt tests/hello_world_file.c -o hello_world_file.html |
221 | 70 |
}}} |
219
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
71 |
|
6b25660d5bbf
Created wiki page through web user interface.
xymengxy@gmail.com
parents:
diff
changeset
|
72 |
Note that you must add "--preload-file hello_world_file.txt" in the command line. This line tells emcc that it should embed the file loading code into the js file. Before the application runs, all files will be loaded first. If you don't do this, it won't find this file. |