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kernel_symbol_parser.cpp
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64 lines (56 loc) · 2.2 KB
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#pragma once
#include "kernel_symbol_parser.h"
#include <sstream>
#ifndef MIN
#define MIN(x, y)(x < y) ? (x) : (y)
#endif // !MIN
KernelSymbolParser::KernelSymbolParser(const std::vector<char>& file_buf) : m_file_buf(file_buf), m_kernel_ver_parser(file_buf), m_kallsyms_lookup_name_6_1_42(file_buf), m_kallsyms_lookup_name_4_6_0(file_buf), m_kallsyms_lookup_name(file_buf)
{
}
KernelSymbolParser::~KernelSymbolParser()
{
}
bool KernelSymbolParser::init_kallsyms_lookup_name() {
std::string current_version = m_kernel_ver_parser.find_kernel_versions();
if (current_version.empty()) {
std::cout << "Failed to read Linux kernel version" << std::endl;
return false;
}
std::cout << "Find the current Linux kernel version: " << current_version << std::endl;
std::cout << std::endl;
if (m_kernel_ver_parser.is_version_less_equal(current_version, "4.6.0")) {
if (!m_kallsyms_lookup_name.init()) {
std::cout << "Failed to analyze kernel kallsyms lookup name information" << std::endl;
return false;
}
} else if (m_kernel_ver_parser.is_version_less_equal(current_version, "6.1.42")) {
if (!m_kallsyms_lookup_name_4_6_0.init()) {
std::cout << "Failed to analyze kernel kallsyms lookup name information" << std::endl;
return false;
}
} else {
if (!m_kallsyms_lookup_name_6_1_42.init()) {
std::cout << "Failed to analyze kernel kallsyms lookup name information" << std::endl;
return false;
}
}
return true;
}
uint64_t KernelSymbolParser::kallsyms_lookup_name(const char* name, bool include_str_mode) {
if (m_kallsyms_lookup_name_6_1_42.is_inited()) {
return m_kallsyms_lookup_name_6_1_42.kallsyms_lookup_name(name, include_str_mode);
} else if (m_kallsyms_lookup_name_4_6_0.is_inited()) {
return m_kallsyms_lookup_name_4_6_0.kallsyms_lookup_name(name, include_str_mode);
} else if (m_kallsyms_lookup_name.is_inited()) {
return m_kallsyms_lookup_name.kallsyms_lookup_name(name, include_str_mode);
} else {
return 0;
}
}
bool KernelSymbolParser::is_kernel_version_less_equal(const std::string& ver) {
std::string current_version = m_kernel_ver_parser.find_kernel_versions();
if (!current_version.empty()) {
return m_kernel_ver_parser.is_version_less_equal(current_version, ver);
}
return false;
}