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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">
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<span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" title="Edit this document" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/mpp/mpp_debug.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">调试指南</h1>
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<div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 2 minute(s)
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<div class="- topic/body concept/conbody body conbody">
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<section class="- topic/section section" id="mpp_debug_guide__section_k3r_zfh_d1c" data-ofbid="mpp_debug_guide__section_k3r_zfh_d1c"><h2 class="- topic/title title sectiontitle">MPP 调试</h2>
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<p class="- topic/p p" data-ofbid="d191106e38__20250123155220">MPP 调试 log 等级分为 ERROR, WARNING, INFO, DEBUG, VERBOSE。通过 LOGL_DEFAULT 定义 MPP 全局的
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log 等级。 默认 log 等级为 INFO。</p>
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<div class="- topic/p p" data-ofbid="d191106e41__20250123155220">源文件路径：<span class="+ topic/ph sw-d/filepath ph filepath">aic-mpp/base/log.h</span><pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_vrr_cgh_d1c" data-ofbid="mpp_debug_guide__codeblock_vrr_cgh_d1c"><code><strong class="hl-keyword">enum</strong> log_level {
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LOGL_ERROR = <span class="hl-number">0</span>,
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LOGL_WARNING,
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LOGL_INFO,
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LOGL_DEBUG,
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LOGL_VERBOSE,
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LOGL_COUNT,
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LOGL_DEFAULT = LOGL_INFO,
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LOGL_FORCE_DEBUG = <span class="hl-number">0x10</span>,
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};</code></pre></div>
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</section>
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<section class="- topic/section section" id="mpp_debug_guide__section_m3r_zfh_d1c" data-ofbid="mpp_debug_guide__section_m3r_zfh_d1c"><h2 class="- topic/title title sectiontitle">子模块调试</h2>
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<div class="- topic/p p" data-ofbid="d191106e54__20250123155220">打开子模块调试 log
|
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方式，在子模块中添加：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_tvw_cgh_d1c" data-ofbid="mpp_debug_guide__codeblock_tvw_cgh_d1c"><code>#<span class="hl-directive">define</span> LOG_DEBUG</code></pre></div>
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</section>
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<section class="- topic/section section" id="mpp_debug_guide__section_o3r_zfh_d1c" data-ofbid="mpp_debug_guide__section_o3r_zfh_d1c"><h2 class="- topic/title title sectiontitle">MPP Heap 调试</h2>
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||
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||
<div class="- topic/p p" data-ofbid="d191106e65__20250123155220">打开 MPP Heap 调试开关，可查看 MPP 中间件对预留内存的使用情况。<ol class="- topic/ol ol" id="mpp_debug_guide__ol_h5d_gcr_sdc" data-ofbid="mpp_debug_guide__ol_h5d_gcr_sdc">
|
||
<li class="- topic/li li" data-ofbid="d191106e69__20250123155220">
|
||
<div class="- topic/div div">
|
||
<div class="- topic/p p" data-ofbid="d191106e73__20250123155220">在 SDK 根目录下，执行下列命令，进入 kernel
|
||
的功能配置界面：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_wg1_3ml_sdc" data-ofbid="mpp_debug_guide__codeblock_wg1_3ml_sdc"><code>make kernel-menuconfig</code></pre></div>
|
||
<p class="- topic/p p" data-ofbid="d191106e78__20250123155220">或使用简写命令</p>
|
||
<div class="- topic/p p" data-ofbid="d191106e81__20250123155220">
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_uss_hml_sdc" data-ofbid="mpp_debug_guide__codeblock_uss_hml_sdc"><code>make km</code></pre>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e89__20250123155220">在内核配置界面，按如下选择：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_rvn_dgh_d1c" data-ofbid="mpp_debug_guide__codeblock_rvn_dgh_d1c"><code>Linux
|
||
Memory Management options --->
|
||
[*] MPP debugfs interface</code></pre></li>
|
||
<li class="- topic/li li" data-ofbid="d191106e94__20250123155220">
|
||
<div class="- topic/p p" data-ofbid="d191106e96__20250123155220">系统启动后挂载
|
||
debugfs<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_ukx_dgh_d1c" data-ofbid="mpp_debug_guide__codeblock_ukx_dgh_d1c"><code>mount -t debugfs none /sys/kernel/debug/</code></pre></div>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e102__20250123155220">进入 mpp 目录后，使用下列命令查看对应节点，即可获取 mpp heap 的内存使用情况。<div class="- topic/p p" data-ofbid="d191106e104__20250123155220">进入 mpp
|
||
目录：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_vdk_2gh_d1c" data-ofbid="mpp_debug_guide__codeblock_vdk_2gh_d1c"><code>cd /sys/kernel/dedbug/mpp/</code></pre></div><div class="- topic/p p" data-ofbid="d191106e108__20250123155220">使用下列获取所有节点列表：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_xzw_ncr_sdc" data-ofbid="mpp_debug_guide__codeblock_xzw_ncr_sdc"><code>ls</code></pre></div><div class="- topic/p p" data-ofbid="d191106e112__20250123155220">输出示例如下：<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_dct_pcr_sdc" data-ofbid="mpp_debug_guide__codeblock_dct_pcr_sdc"><code>bitmap count maxchunk used</code></pre><ul class="- topic/ul ul" id="mpp_debug_guide__ul_s3r_zfh_d1c" data-ofbid="mpp_debug_guide__ul_s3r_zfh_d1c">
|
||
<li class="- topic/li li" data-ofbid="d191106e118__20250123155220">
|
||
<p class="- topic/p p" data-ofbid="d191106e120__20250123155220">count : MPP Heap 中包含的 page 总数</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_tlf_4cr_sdc" data-ofbid="mpp_debug_guide__codeblock_tlf_4cr_sdc"><code>cat count</code></pre>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_crb_vcr_sdc" data-ofbid="mpp_debug_guide__codeblock_crb_vcr_sdc"><code><span class="hl-number">2048</span></code></pre>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e130__20250123155220">
|
||
<p class="- topic/p p" data-ofbid="d191106e132__20250123155220">used : MPP Heap 中已被申请的 page 总数</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_fqw_vcr_sdc" data-ofbid="mpp_debug_guide__codeblock_fqw_vcr_sdc"><code>cat used</code></pre>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_lyj_wcr_sdc" data-ofbid="mpp_debug_guide__codeblock_lyj_wcr_sdc"><code><span class="hl-number">600</span></code></pre>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e142__20250123155220">
|
||
<p class="- topic/p p" data-ofbid="d191106e144__20250123155220">maxchunk : MPP Heap 中还能申请到最大的连续 page 总数</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_u15_5cr_sdc" data-ofbid="mpp_debug_guide__codeblock_u15_5cr_sdc"><code>cat maxchunk</code></pre>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_c2d_xcr_sdc" data-ofbid="mpp_debug_guide__codeblock_c2d_xcr_sdc"><code><span class="hl-number">1448</span></code></pre>
|
||
</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e154__20250123155220">
|
||
<p class="- topic/p p" data-ofbid="d191106e156__20250123155220">bitmap : MPP Heap 中记录 page 状态的 bitmap</p>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_xkh_xcr_sdc" data-ofbid="mpp_debug_guide__codeblock_xkh_xcr_sdc"><code>cat bitmap</code></pre>
|
||
<pre class="+ topic/pre pr-d/codeblock pre codeblock language-c" id="mpp_debug_guide__codeblock_rrq_xcr_sdc" data-ofbid="mpp_debug_guide__codeblock_rrq_xcr_sdc"><code><span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span>
|
||
<span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">4294967295</span> <span class="hl-number">16777215</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span>
|
||
<span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span> <span class="hl-number">0</span></code></pre>
|
||
<div class="- topic/p p" data-ofbid="d191106e165__20250123155220">
|
||
<ul class="- topic/ul ul" id="mpp_debug_guide__ul_wqx_1dr_sdc" data-ofbid="mpp_debug_guide__ul_wqx_1dr_sdc">
|
||
<li class="- topic/li li" data-ofbid="d191106e169__20250123155220">一个 page 大小为 4K ， bitmap 节点打印输出十进制数据。</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e172__20250123155220">4294967295 转换为十六进制为 <code class="+ topic/ph pr-d/codeph ph codeph">0xFFFFFFFF</code>，二进制为
|
||
<code class="+ topic/ph pr-d/codeph ph codeph">0b11111111111111111111111111111111</code>
|
||
。</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e181__20250123155220"> 一个 bit 表示一个 page 的状态，1 表示已被申请，0 表示空闲。</li>
|
||
<li class="- topic/li li" data-ofbid="d191106e184__20250123155220">4294967295 表示 32 个 page 全部被占用，总共 32 * 4K 大小。</li>
|
||
</ul>
|
||
<div class="- topic/note note note note_note" id="mpp_debug_guide__note_gdz_zfh_d1c" data-ofbid="mpp_debug_guide__note_gdz_zfh_d1c"><span class="note__title">注：</span> <div class="note__body">
|
||
<p class="- topic/p p" data-ofbid="d191106e190__20250123155220">实际调试时要注意大小端问题。</p>
|
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</div></div>
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