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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/ge/ge_debug.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">调试指南</h1><div class="date inPage">17 Dec 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><ol class="- topic/ol ol" id="ge_debug_guide__ol_hzt_vyq_sdc" data-ofbid="ge_debug_guide__ol_hzt_vyq_sdc"><li class="- topic/li li" data-ofbid="d280678e23__20250121171751">
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<div class="- topic/div div">
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<div class="- topic/p p" data-ofbid="d280678e27__20250121171751">在 SDK 根目录下，执行下列命令，进入 kernel
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的功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_debug_guide__codeblock_wg1_3ml_sdc" data-ofbid="ge_debug_guide__codeblock_wg1_3ml_sdc">make kernel-menuconfig</pre></div>
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<p class="- topic/p p" data-ofbid="d280678e32__20250121171751">或使用简写命令</p>
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<div class="- topic/p p" data-ofbid="d280678e35__20250121171751">
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<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_debug_guide__codeblock_uss_hml_sdc" data-ofbid="ge_debug_guide__codeblock_uss_hml_sdc">make km</pre>
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</li><li class="- topic/li li" data-ofbid="d280678e42__20250121171751">
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<div class="- topic/p p" data-ofbid="d280678e44__20250121171751">在内核配置界面，打开 GE 模块的 DEBUG
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选项：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_debug_guide__codeblock_ntx_vrz_c1c" data-ofbid="ge_debug_guide__codeblock_ntx_vrz_c1c">Linux
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Kernel hacking
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ArtInChip Debug
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[*] GE driver debug</pre></div>
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</li></ol><div class="- topic/div div">
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<div class="- topic/p p" data-ofbid="d280678e51__20250121171751">打开 DEBUG 选项后：<ul class="- topic/ul ul" id="ge_debug_guide__ol_ucp_mss_c1c" data-ofbid="ge_debug_guide__ol_ucp_mss_c1c"><li class="- topic/li li" data-ofbid="d280678e54__20250121171751">
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<p class="- topic/p p" data-ofbid="d280678e56__20250121171751">驱动以<code class="+ topic/ph pr-d/codeph ph codeph">-O0</code> 编译。</p>
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</li><li class="- topic/li li" data-ofbid="d280678e62__20250121171751">
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<p class="- topic/p p" data-ofbid="d280678e64__20250121171751"><span class="+ topic/keyword pr-d/parmname keyword parmname">pr_dbg()</span> 和 <span class="+ topic/keyword pr-d/parmname keyword parmname">dev_dbg()</span> 调试信息会被编译。</p>
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<div class="- topic/p p" id="ge_debug_guide__p_wvf_n3w_mdc" data-ofbid="ge_debug_guide__p_wvf_n3w_mdc">在系统运行时，如果要打印 <span class="+ topic/keyword pr-d/parmname keyword parmname">pr_dbg()</span> 和
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<span class="+ topic/keyword pr-d/parmname keyword parmname">dev_dbg()</span> 信息，还需要调整 <span class="+ topic/keyword pr-d/parmname keyword parmname">loglevel</span> 为
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8，可以通过以下两种方式实现：<ul class="- topic/ul ul" id="ge_debug_guide__ol_vcp_mss_c1c" data-ofbid="ge_debug_guide__ol_vcp_mss_c1c"><li class="- topic/li li" data-ofbid="d280678e84__20250121171751">
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<p class="- topic/p p" data-ofbid="d280678e86__20250121171751">在 <span class="+ topic/ph sw-d/filepath ph filepath">board.dts</span> 中修改
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<span class="+ topic/keyword pr-d/parmname keyword parmname">bootargs</span>，增加
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<span class="+ topic/keyword pr-d/parmname keyword parmname">“loglevel=8”</span></p>
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</li><li class="- topic/li li" data-ofbid="d280678e97__20250121171751">
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<div class="- topic/p p" data-ofbid="d280678e99__20250121171751">在板子启动到 Linux Shell
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后，执行下列命令：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="ge_debug_guide__pre_wcp_mss_c1c" data-ofbid="ge_debug_guide__pre_wcp_mss_c1c">echo8 > /proc/sys/kernel/printk</pre></div>
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