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<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>Android - Porting Guide</title><script src="http://www.google.com/uds/api?file=uds.js&v=1.0&key=internal-codesite" type="text/javascript"></script><script src="http://code.google.com/js/jquery.js" type="text/javascript"></script><script type="text/javascript">var _tocPath_ = 'http://code.google.com/android/_toc.ezt';</script><script src="http://code.google.com/js/codesite.pack.01312008.js" type="text/javascript"></script><script language="JavaScript">function resizeHeight() { if(document.getElementById && !(document.all)) { height= document.getElementById('doxygen').contentDocument.body.scrollHeight + 20; document.getElementById('doxygen').style.height = height; } else if(document.all) { height= document.frames('doxygen').document.body.scrollHeight + 20; document.all.doxygen.style.height = height; }}</script><link href="http://code.google.com/css/codesite.pack.01312008.css" type="text/css" 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style="display:none"></iframe><![endif]--><div id="codesiteContent"><a name="gc-topnav-anchor"></a><div id="gc-topnav"> <h1>Android Platform Development Kit</h1> <ul class="gc-topnav-tabs"> <li id="sdk_link"> <a href="http://code.google.com/android/index.html" title="Android Software Development Kit">SDK</a> </li> <li id="docs_link"> <a href="index.html" title="Official Android documentation">Docs</a> </li> <li id="faq_link"> <a href="http://code.google.com/android/kb/index.html" title="Answers to frequently asked questions about Android">FAQ</a> </li> <li> <a href="http://android-developers.blogspot.com/" title="Official Android blog">Blog</a> </li> <li> <a href="http://code.google.com/android/groups.html" title="Android developer forum">Group</a> </li> <li> <a href="http://code.google.com/android/terms.html" title="Android terms of service">Terms</a> </li> <li> <a href="mailto:android-pdk-feedback@google.com?subject=PDK%20Feedback&body=(filed%20from:%20build_new_device.html%20v0.6%20-%2025%20November%202008)%0D%0A%0D%0ASUMMARY:%0D%0A%0D%0A%0D%0A%0D%0ASTEPS%20TO%20REPRODUCE:%0D%0A%0D%0A%0D%0A%0D%0AADDITIONAL%20NOTES:">Report a Problem</a> </li> </ul></div><!-- end gc-topnav --><div class="g-section g-tpl-180"><a name="gc-toc"></a><div class="g-unit g-first" id="gc-toc"> <ul> <li> <h1><a href="index.html">Documentation</a></h1> <ul> <li> <strong>Introduction</strong> <ul> <li><a href="system_requirements.html">Device Requirements</a></li> </ul> </li> <li> <strong>Dev Environment Setup</strong> <ul> <li><a href="build_system.html">Build System</a></li> </ul> </li> <li> <strong>Basic Bring up</strong> <ul> <li><a href="build_new_device.html">Building New Device</a></li> <li><a href="bring_up.html">Bring up</a></li> <li><a href="keymaps_keyboard_input.html">Keymaps and Keyboard</a></li> <li><a href="display_drivers.html">Display Drivers</a></li> </ul> </li> <li> <strong>Multimedia</strong> <ul> <li><a href="audio_sub_system.html">Audio</a></li> <li><a href="camera.html">Camera</a></li> </ul> </li> <li> <strong>Power Management</strong> <ul> <li><a href="power_management.html">Power Management</a></li> </ul> </li> <li> <strong>Networking</strong> <ul> <li><a href="wifi.html">Wi-Fi</a></li> <li><a href="gps.html">GPS</a></li> <li><a href="bluetooth.html">Bluetooth</a></li> </ul> </li> <li> <strong>Telephony</strong> <ul> <li><a href="telephony.html">Radio Interface Layer</a></li> </ul> </li> <li> <strong>Testing</strong> <ul> <li><a href="instrumentation_testing.html">Instrumentation Testing</a></li> </ul> </li> </ul> </li> </ul></div><a name="gc-pagecontent"></a><div class="g-unit" id="gc-pagecontent"><div id="jd-content"><div class="jd-descr"><a name="androidBuildNewTitle"></a><h1>Building Android for a new Mobile Device</h1><a name="toc"/><div style="padding:10px"><a href="#androidOHDPortingDeviceBuildingProcess">Detailed Instructions</a><br/><a href="#androidBuildNewFileTree">New Product File Tree</a><br/></div></font></div><a name="androidOHDPortingDeviceBuildingProcess"></a><h2>Detailed Instructions</h2><p>The directions below describe how to configure make files for new mobile devices and products.</p><ol> <li>Create a company directory in <code>//device/partner</code>.<br/> <pre class="prettyprint"> mkdir device/partner/<company_name></pre></li> <li>Create a <code>products</code> directory beneath the company directory you created in step 1.<BR> <pre class="prettyprint"> mkdir device/partner/<company_name>/products/</pre></li> <li>Create a product-specific make file, called <code>device/partner/<company_name>/products/<first_product_name>.mk</code>, that includes the following code:<BR> <pre class="prettyprint"> $(call inherit-product, target/product/generic.mk) # # Overrides PRODUCT_NAME := <first_product_name> PRODUCT_DEVICE := <board_name></pre></li> <li>In the <code>products</code> directory, create an <code>AndroidProducts.mk</code> file that point to (and is responsible for finding) the individual product make files.<BR> <pre class="prettypring"> # # This file should set PRODUCT_MAKEFILES to a list of product makefiles # to expose to the build system. LOCAL_DIR will already be set to # the directory containing this file. # # This file may not rely on the value of any variable other than # LOCAL_DIR; do not use any conditionals, and do not look up the # value of any variable that isn't set in this file or in a file that # it includes. # PRODUCT_MAKEFILES := \ $(LOCAL_DIR)/first_product_name.mk \</pre></li> <li>Create a board-specific directory beneath your company directory that matches the <code>PRODUCT_DEVICE</code> variable <code><board_name></code> referenced in the product-specific make file above. This will include a make file that gets accessed by any product using this board.<BR> <pre class="prettyprint"> mkdir device/partner/<company_name>/<board_name></pre></li> <li>Create a <code>product_config.mk</code> file in the directory created in the previous step (<code>device/partner/<company_name>/<board_name></code>). If this directory does not include a <code>product_config.mk</code> file, the build will fail.<BR> <pre class="prettyprint"> # These definitions override the defaults in config/config.make for <board_name> # # TARGET_NO_BOOTLOADER := false # TARGET_HARDWARE_3D := false # TARGET_USE_GENERIC_AUDIO := true</pre></li> <li>If you wish to modify system properties, create a <code>system.prop</code> file in your <code><board_name></code> directory(<code>device/partner/<company_name>/<board_name></code>).<BR> <pre class="prettyprint"> # system.prop for <board_name> # This overrides settings in the products/generic/system.prop file # # rild.libpath=/system/lib/libreference-ril.so # rild.libargs=-d /dev/ttyS0</pre></li> <li>Add a pointer to <code><second_product_name>.mk</code> within <code>products/AndroidProducts.mk</code>.<BR> <pre class="prettypring"> PRODUCT_MAKEFILES := \ $(LOCAL_DIR)/first_product_name.mk \ $(LOCAL_DIR)/second_product_name.mk</pre></li> <li><code>device/partner/<company_name>/<board_name></code> must include an <code>Android.mk</code> file with at least the following code:<BR><BR> <pre class="prettyprint"> # make file for new hardware <board_name> from <company_name> # LOCAL_PATH := $(call my-dir) # # this is here to use the pre-built kernel ifeq ($(TARGET_PREBUILT_KERNEL),) TARGET_PREBUILT_KERNEL := $(LOCAL_PATH)/kernel endif # file := $(INSTALLED_KERNEL_TARGET) ALL_PREBUILT += $(file) $(file): $(TARGET_PREBUILT_KERNEL) | $(ACP) $(transform-prebuilt-to-target) # # no boot loader, so we don't need any of that stuff.. # LOCAL_PATH := partner/<company_name>/<board_name> # include $(CLEAR_VARS) # # include more board specific stuff here? Such as Audio parameters. #</pre></li><li>To create a second product for the same board, create a second product-specific make file called <code>device/partner/company_name/products/<second_product_name>.mk</code> that includes:<BR><pre class="prettyprint"> $(call inherit-product, partner/google/products/generic.mk) # # Overrides PRODUCT_NAME := <second_product_name> PRODUCT_DEVICE := <board_name></pre></li> </ol><p>By now, you should have two new products, called <code><first_product_name></code> and <code><second_product_name></code> associated with <code><company_name></code>. To verify that a product is properly configured (<code><first_product_name></code>, for example), execute the following:<BR><pre class="prettyprint"> cd device . ./envsetup.sh partner_setup <first_product_name> make PRODUCT-<first_product_name>-user</pre><p>You should find new build binaries located in <code>device/out/target/product/<board_name></code>.<a name="androidBuildNewFileTree"></a><h2>New Product File Tree</h2><p>The file tree below illustrates what your own system should look like after completing the steps above.</p><p><ul> <li><code><company_name></code></li> <ul> <li><code><board_name></code></li> <ul> <li><code>Android.mk</code></li> <li><code>product_config.mk</code></li> <li><code>system.prop</code></li> </ul> <li><code>products</code></li> <ul> <li><code>AndroidProducts.mk</code></li> <li><code><first_product_name>.mk</code></li> <li><code><second_product_name>.mk</code></li> </ul> </ul></ul></p><p><span class="lh2"><a name="androidFooter"></a></span> </div> </div> <!-- end gc-pagecontent --> </div> <!-- end gooey wrapper --> </div> <!-- end codesearchresults --> <div id="gc-footer" dir="ltr"> <div class="text"> ©2008 Google<!-- - <a href="/">Code Home</a> - <a href="http://www.google.com/accounts/TOS">Site Terms of Service</a> - <a href="http://www.google.com/privacy.html">Privacy Policy</a> - <a href="/more">Site Directory</a> --></div> </div> <!-- end gc-footer --></div><!-- end gc-containter --><script src="http://www.google-analytics.com/ga.js" type="text/javascript"></script><script type="text/javascript"> try { var pageTracker = _gat._getTracker("UA-18071-1"); pageTracker._setAllowAnchor(true); pageTracker._initData(); pageTracker._trackPageview(); } catch(e) {}</script><div id="jd-build-id"> v0.6 - 25 November 2008</div></div></div></div></body></html>⌨️ 快捷键说明
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