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| 1 Mojo | 1 Mojo |
| 2 ==== | 2 ==== |
| 3 | 3 |
| 4 Mojo is an effort to extract a common platform out of Chrome's renderer and plug
in processes that can support multiple types of sandboxed content, such as HTML,
Pepper, or NaCl. | 4 Mojo is an effort to extract a common platform out of Chrome's renderer and plug
in processes that can support multiple types of sandboxed content, such as HTML,
Pepper, or NaCl. |
| 5 | 5 |
| 6 ## Set up your environment | 6 ## Set up your environment |
| 7 | 7 |
| 8 The instructions below only need to be done once. Note that a simple "git clone"
command is not sufficient to build the source code because this repo uses the g
client command from depot_tools to manage most third party dependencies. | 8 The instructions below only need to be done once. Note that a simple "git clone"
command is not sufficient to build the source code because this repo uses the g
client command from depot_tools to manage most third party dependencies. |
| 9 | 9 |
| 10 1. Download depot_tools and make sure it is in your path:<br>http://www.chromium
.org/developers/how-tos/install-depot-tools<br> | 10 1. Download depot_tools and make sure it is in your path:<br>http://www.chromium
.org/developers/how-tos/install-depot-tools<br> |
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| 28 | 28 |
| 29 `install-build-deps.sh` installs any packages needed to build, then `mojo/tools/
mojob.py gn` runs `gn args` and configures the build directory, out/Debug. | 29 `install-build-deps.sh` installs any packages needed to build, then `mojo/tools/
mojob.py gn` runs `gn args` and configures the build directory, out/Debug. |
| 30 | 30 |
| 31 If the fetch command fails, you will need to delete the src directory and start
over. | 31 If the fetch command fails, you will need to delete the src directory and start
over. |
| 32 | 32 |
| 33 ## Build Mojo | 33 ## Build Mojo |
| 34 | 34 |
| 35 Build Mojo by running: | 35 Build Mojo by running: |
| 36 | 36 |
| 37 ``` | 37 ``` |
| 38 $ ninja -C out/Debug -j 10 root | 38 $ ninja -C out/Debug -j 10 |
| 39 ``` | 39 ``` |
| 40 | 40 |
| 41 The "root" parameter specifies the target to build, it's not a special keyword.
You can find the "root" target in src/BUILD.gn. | |
| 42 | |
| 43 (If you are a Googler, see the section at the end of this document for faster bu
ilds.) | 41 (If you are a Googler, see the section at the end of this document for faster bu
ilds.) |
| 44 | 42 |
| 45 You can also use the mojob.py script for building. This script automatically cal
ls ninja and sets -j to an appropriate value based on whether Goma is present. Y
ou cannot specify a target name with this script. | 43 You can also use the mojob.py script for building. This script automatically cal
ls ninja and sets -j to an appropriate value based on whether Goma is present. Y
ou cannot specify a target name with this script. |
| 46 ``` | 44 ``` |
| 47 mojo/tools/mojob.py build | 45 mojo/tools/mojob.py build |
| 48 ``` | 46 ``` |
| 49 | 47 |
| 50 Run a demo: | 48 Run a demo: |
| 51 ``` | 49 ``` |
| 52 mojo/tools/mojo_demo.sh --browser | 50 mojo/tools/mojo_demo.sh --browser |
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| 143 | 141 |
| 144 Add this line to the end of the file: | 142 Add this line to the end of the file: |
| 145 ``` | 143 ``` |
| 146 use_goma = true | 144 use_goma = true |
| 147 ``` | 145 ``` |
| 148 | 146 |
| 149 After you close the editor, the "gn args" command will automatically run "gn gen
out/Debug" again. | 147 After you close the editor, the "gn args" command will automatically run "gn gen
out/Debug" again. |
| 150 | 148 |
| 151 Now you can dramatically increase the number of parallel tasks: | 149 Now you can dramatically increase the number of parallel tasks: |
| 152 ``` | 150 ``` |
| 153 $ ninja -C out/Debug -j 1000 root | 151 $ ninja -C out/Debug -j 1000 |
| 154 ``` | 152 ``` |
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