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diff --git a/runtime/docs/html/probes_8c-source.html b/runtime/docs/html/probes_8c-source.html index ab2b831b..6084bad3 100644 --- a/runtime/docs/html/probes_8c-source.html +++ b/runtime/docs/html/probes_8c-source.html @@ -4,107 +4,110 @@ <link href="doxygen.css" rel="stylesheet" type="text/css"> </head><body> <!-- Generated by Doxygen 1.4.1 --> -<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a></div> -<h1>probes.c</h1><a href="probes_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/* -*- linux-c -*- */</span><span class="comment"></span> -00002 <span class="comment">/** @file probes.c</span> -00003 <span class="comment"> * @brief Functions to assist loading and unloading groups of probes.</span> -00004 <span class="comment"> */</span> -00005 <span class="comment"></span> -00006 <span class="comment">/** Lookup name.</span> -00007 <span class="comment"> * This simply calls the kernel function kallsyms_lookup_name().</span> -00008 <span class="comment"> * That function is not exported, so this workaround is required.</span> -00009 <span class="comment"> * See the kernel source, kernel/kallsyms.c for more information.</span> -00010 <span class="comment"> */</span> -00011 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> long (*_stp_lookup_name)(<span class="keywordtype">char</span> *name)=(<span class="keywordtype">void</span> *)KALLSYMS_LOOKUP_NAME; -00012 <span class="comment"></span> -00013 <span class="comment">/** Unregister a group of jprobes.</span> -00014 <span class="comment"> * @param probes Pointer to an array of struct jprobe.</span> -00015 <span class="comment"> * @param num_probes Number of probes in the array.</span> -00016 <span class="comment"> */</span> -00017 -<a name="l00018"></a><a class="code" href="probes_8c.html#a1">00018</a> <span class="keywordtype">void</span> <a class="code" href="probes_8c.html#a1">_stp_unregister_jprobes</a> (<span class="keyword">struct</span> jprobe *probes, <span class="keywordtype">int</span> num_probes) -00019 { -00020 <span class="keywordtype">int</span> i; -00021 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) -00022 unregister_jprobe(&probes[i]); -00023 <a class="code" href="group__io.html#ga0">dlog</a> (<span class="stringliteral">"All jprobes removed\n"</span>); -00024 } -00025 <span class="comment"></span> -00026 <span class="comment">/** Register a group of jprobes.</span> -00027 <span class="comment"> * @param probes Pointer to an array of struct jprobe.</span> -00028 <span class="comment"> * @param num_probes Number of probes in the array.</span> -00029 <span class="comment"> * @return 0 on success.</span> -00030 <span class="comment"> */</span> -00031 -<a name="l00032"></a><a class="code" href="probes_8c.html#a2">00032</a> <span class="keywordtype">int</span> <a class="code" href="probes_8c.html#a2">_stp_register_jprobes</a> (<span class="keyword">struct</span> jprobe *probes, <span class="keywordtype">int</span> num_probes) -00033 { -00034 <span class="keywordtype">int</span> i, ret ; -00035 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> addr; -00036 -00037 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) { -00038 addr =_stp_lookup_name((<span class="keywordtype">char</span> *)probes[i].kp.addr); -00039 <span class="keywordflow">if</span> (addr == 0) { -00040 <a class="code" href="group__io.html#ga0">dlog</a> (<span class="stringliteral">"ERROR: function %s not found!\n"</span>, -00041 (<span class="keywordtype">char</span> *)probes[i].kp.addr); -00042 ret = -1; <span class="comment">/* FIXME */</span> -00043 <span class="keywordflow">goto</span> out; -00044 } -00045 <a class="code" href="group__io.html#ga0">dlog</a>(<span class="stringliteral">"inserting jprobe at %s (%p)\n"</span>, probes[i].kp.addr, addr); -00046 probes[i].kp.addr = (kprobe_opcode_t *)addr; -00047 ret = register_jprobe(&probes[i]); -00048 <span class="keywordflow">if</span> (ret) -00049 <span class="keywordflow">goto</span> out; -00050 } -00051 <span class="keywordflow">return</span> 0; -00052 out: -00053 <a class="code" href="group__io.html#ga0">dlog</a> (<span class="stringliteral">"probe module initialization failed. Exiting...\n"</span>); -00054 <a class="code" href="probes_8c.html#a1">_stp_unregister_jprobes</a>(probes, i); -00055 <span class="keywordflow">return</span> ret; -00056 } -00057 <span class="comment"></span> -00058 <span class="comment">/** Unregister a group of kprobes.</span> -00059 <span class="comment"> * @param probes Pointer to an array of struct kprobe.</span> -00060 <span class="comment"> * @param num_probes Number of probes in the array.</span> -00061 <span class="comment"> */</span> -00062 -<a name="l00063"></a><a class="code" href="probes_8c.html#a3">00063</a> <span class="keywordtype">void</span> <a class="code" href="probes_8c.html#a3">_stp_unregister_kprobes</a> (<span class="keyword">struct</span> kprobe *probes, <span class="keywordtype">int</span> num_probes) -00064 { -00065 <span class="keywordtype">int</span> i; -00066 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) -00067 unregister_kprobe(&probes[i]); -00068 <a class="code" href="group__io.html#ga0">dlog</a> (<span class="stringliteral">"All kprobes removed\n"</span>); -00069 } -00070 <span class="comment"></span> -00071 <span class="comment">/** Register a group of kprobes.</span> -00072 <span class="comment"> * @param probes Pointer to an array of struct kprobe.</span> -00073 <span class="comment"> * @param num_probes Number of probes in the array.</span> -00074 <span class="comment"> * @return 0 on success.</span> -00075 <span class="comment"> */</span> -00076 -<a name="l00077"></a><a class="code" href="probes_8c.html#a4">00077</a> <span class="keywordtype">int</span> <a class="code" href="probes_8c.html#a4">_stp_register_kprobes</a> (<span class="keyword">struct</span> kprobe *probes, <span class="keywordtype">int</span> num_probes) -00078 { -00079 <span class="keywordtype">int</span> i, ret ; -00080 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> addr; -00081 -00082 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) { -00083 addr =_stp_lookup_name((<span class="keywordtype">char</span> *)probes[i].addr); -00084 <span class="keywordflow">if</span> (addr == 0) { -00085 <a class="code" href="group__io.html#ga0">dlog</a> (<span class="stringliteral">"ERROR: function %s not found!\n"</span>, -00086 (<span class="keywordtype">char</span> *)probes[i].addr); -00087 ret = -1; <span class="comment">/* FIXME */</span> -00088 <span class="keywordflow">goto</span> out; -00089 } -00090 <a class="code" href="group__io.html#ga0">dlog</a>(<span class="stringliteral">"inserting kprobe at %s (%p)\n"</span>, probes[i].addr, addr); -00091 probes[i].addr = (kprobe_opcode_t *)addr; -00092 ret = register_kprobe(&probes[i]); -00093 <span class="keywordflow">if</span> (ret) -00094 <span class="keywordflow">goto</span> out; -00095 } -00096 <span class="keywordflow">return</span> 0; -00097 out: -00098 <a class="code" href="group__io.html#ga0">dlog</a> (<span class="stringliteral">"probe module initialization failed. Exiting...\n"</span>); -00099 <a class="code" href="probes_8c.html#a3">_stp_unregister_kprobes</a>(probes, i); -00100 <span class="keywordflow">return</span> ret; -00101 } -00102 +<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a></div> +<h1>probes.c</h1><a href="probes_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="preprocessor">#ifndef _PROBES_C_ </span><span class="comment">/* -*- linux-c -*- */</span> +00002 <span class="preprocessor">#define _PROBES_C</span> +00003 <span class="preprocessor"></span><span class="comment"></span> +00004 <span class="comment">/** @file probes.c</span> +00005 <span class="comment"> * @brief Functions to assist loading and unloading groups of probes.</span> +00006 <span class="comment"> */</span> +00007 <span class="comment"></span> +00008 <span class="comment">/** Lookup name.</span> +00009 <span class="comment"> * This simply calls the kernel function kallsyms_lookup_name().</span> +00010 <span class="comment"> * That function is not exported, so this workaround is required.</span> +00011 <span class="comment"> * See the kernel source, kernel/kallsyms.c for more information.</span> +00012 <span class="comment"> */</span> +00013 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> long (*_stp_lookup_name)(<span class="keywordtype">char</span> *name)=(<span class="keywordtype">void</span> *)KALLSYMS_LOOKUP_NAME; +00014 <span class="comment"></span> +00015 <span class="comment">/** Unregister a group of jprobes.</span> +00016 <span class="comment"> * @param probes Pointer to an array of struct jprobe.</span> +00017 <span class="comment"> * @param num_probes Number of probes in the array.</span> +00018 <span class="comment"> */</span> +00019 +<a name="l00020"></a><a class="code" href="probes_8c.html#a2">00020</a> <span class="keywordtype">void</span> <a class="code" href="probes_8c.html#a2">_stp_unregister_jprobes</a> (<span class="keyword">struct</span> jprobe *probes, <span class="keywordtype">int</span> num_probes) +00021 { +00022 <span class="keywordtype">int</span> i; +00023 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) +00024 unregister_jprobe(&probes[i]); +00025 <a class="code" href="group__io.html#ga2">_stp_log</a> (<span class="stringliteral">"All jprobes removed\n"</span>); +00026 } +00027 <span class="comment"></span> +00028 <span class="comment">/** Register a group of jprobes.</span> +00029 <span class="comment"> * @param probes Pointer to an array of struct jprobe.</span> +00030 <span class="comment"> * @param num_probes Number of probes in the array.</span> +00031 <span class="comment"> * @return 0 on success.</span> +00032 <span class="comment"> */</span> +00033 +<a name="l00034"></a><a class="code" href="probes_8c.html#a3">00034</a> <span class="keywordtype">int</span> <a class="code" href="probes_8c.html#a3">_stp_register_jprobes</a> (<span class="keyword">struct</span> jprobe *probes, <span class="keywordtype">int</span> num_probes) +00035 { +00036 <span class="keywordtype">int</span> i, ret ; +00037 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> addr; +00038 +00039 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) { +00040 addr =_stp_lookup_name((<span class="keywordtype">char</span> *)probes[i].kp.addr); +00041 <span class="keywordflow">if</span> (addr == 0) { +00042 <a class="code" href="group__io.html#ga2">_stp_log</a> (<span class="stringliteral">"ERROR: function %s not found!\n"</span>, +00043 (<span class="keywordtype">char</span> *)probes[i].kp.addr); +00044 ret = -1; <span class="comment">/* FIXME */</span> +00045 <span class="keywordflow">goto</span> out; +00046 } +00047 <a class="code" href="group__io.html#ga2">_stp_log</a>(<span class="stringliteral">"inserting jprobe at %s (%p)\n"</span>, probes[i].kp.addr, addr); +00048 probes[i].kp.addr = (kprobe_opcode_t *)addr; +00049 ret = register_jprobe(&probes[i]); +00050 <span class="keywordflow">if</span> (ret) +00051 <span class="keywordflow">goto</span> out; +00052 } +00053 <span class="keywordflow">return</span> 0; +00054 out: +00055 <a class="code" href="group__io.html#ga2">_stp_log</a> (<span class="stringliteral">"probe module initialization failed. Exiting...\n"</span>); +00056 <a class="code" href="probes_8c.html#a2">_stp_unregister_jprobes</a>(probes, i); +00057 <span class="keywordflow">return</span> ret; +00058 } +00059 <span class="comment"></span> +00060 <span class="comment">/** Unregister a group of kprobes.</span> +00061 <span class="comment"> * @param probes Pointer to an array of struct kprobe.</span> +00062 <span class="comment"> * @param num_probes Number of probes in the array.</span> +00063 <span class="comment"> */</span> +00064 +<a name="l00065"></a><a class="code" href="probes_8c.html#a4">00065</a> <span class="keywordtype">void</span> <a class="code" href="probes_8c.html#a4">_stp_unregister_kprobes</a> (<span class="keyword">struct</span> kprobe *probes, <span class="keywordtype">int</span> num_probes) +00066 { +00067 <span class="keywordtype">int</span> i; +00068 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) +00069 unregister_kprobe(&probes[i]); +00070 <a class="code" href="group__io.html#ga2">_stp_log</a> (<span class="stringliteral">"All kprobes removed\n"</span>); +00071 } +00072 <span class="comment"></span> +00073 <span class="comment">/** Register a group of kprobes.</span> +00074 <span class="comment"> * @param probes Pointer to an array of struct kprobe.</span> +00075 <span class="comment"> * @param num_probes Number of probes in the array.</span> +00076 <span class="comment"> * @return 0 on success.</span> +00077 <span class="comment"> */</span> +00078 +<a name="l00079"></a><a class="code" href="probes_8c.html#a5">00079</a> <span class="keywordtype">int</span> <a class="code" href="probes_8c.html#a5">_stp_register_kprobes</a> (<span class="keyword">struct</span> kprobe *probes, <span class="keywordtype">int</span> num_probes) +00080 { +00081 <span class="keywordtype">int</span> i, ret ; +00082 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> addr; +00083 +00084 <span class="keywordflow">for</span> (i = 0; i < num_probes; i++) { +00085 addr =_stp_lookup_name((<span class="keywordtype">char</span> *)probes[i].addr); +00086 <span class="keywordflow">if</span> (addr == 0) { +00087 <a class="code" href="group__io.html#ga2">_stp_log</a> (<span class="stringliteral">"ERROR: function %s not found!\n"</span>, +00088 (<span class="keywordtype">char</span> *)probes[i].addr); +00089 ret = -1; <span class="comment">/* FIXME */</span> +00090 <span class="keywordflow">goto</span> out; +00091 } +00092 <a class="code" href="group__io.html#ga2">_stp_log</a>(<span class="stringliteral">"inserting kprobe at %s (%p)\n"</span>, probes[i].addr, addr); +00093 probes[i].addr = (kprobe_opcode_t *)addr; +00094 ret = register_kprobe(&probes[i]); +00095 <span class="keywordflow">if</span> (ret) +00096 <span class="keywordflow">goto</span> out; +00097 } +00098 <span class="keywordflow">return</span> 0; +00099 out: +00100 <a class="code" href="group__io.html#ga2">_stp_log</a> (<span class="stringliteral">"probe module initialization failed. Exiting...\n"</span>); +00101 <a class="code" href="probes_8c.html#a4">_stp_unregister_kprobes</a>(probes, i); +00102 <span class="keywordflow">return</span> ret; +00103 } +00104 +00105 <span class="preprocessor">#endif </span><span class="comment">/* _PROBES_C */</span> </pre></div></body></html> |