Remove the IR for know for simplicity

include/elfio/elfio_modinfo.hpp

@@ -0,0 +1,124 @@
+/*
+Copyright (C) 2001-present by Serge Lamikhov-Center
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef ELFIO_MODINFO_HPP
+#define ELFIO_MODINFO_HPP
+
+#include <string_view>
+#include <vector>
+
+namespace ELFIO {
+
+//------------------------------------------------------------------------------
+template <class S> class modinfo_section_accessor_template
+{
+  public:
+    //------------------------------------------------------------------------------
+    explicit modinfo_section_accessor_template( S* section )
+        : modinfo_section( section )
+    {
+        process_section();
+    }
+
+    //------------------------------------------------------------------------------
+    Elf_Word get_attribute_num() const { return (Elf_Word)content.size(); }
+
+    //------------------------------------------------------------------------------
+    bool
+    get_attribute( Elf_Word no, std::string& field, std::string& value ) const
+    {
+        if ( no < content.size() ) {
+            field = content[no].first;
+            value = content[no].second;
+            return true;
+        }
+
+        return false;
+    }
+
+    //------------------------------------------------------------------------------
+    bool get_attribute( const std::string_view& field_name,
+                        std::string&            value ) const
+    {
+        for ( const auto [first, second] : content ) {
+            if ( field_name == first ) {
+                value = second;
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    //------------------------------------------------------------------------------
+    Elf_Word add_attribute( const std::string& field, const std::string& value )
+    {
+        Elf_Word current_position = 0;
+
+        if ( modinfo_section ) {
+            // Strings are addeded to the end of the current section data
+            current_position = (Elf_Word)modinfo_section->get_size();
+
+            std::string attribute = field + "=" + value;
+
+            modinfo_section->append_data( attribute + '\0' );
+            content.emplace_back( field, value );
+        }
+
+        return current_position;
+    }
+
+    //------------------------------------------------------------------------------
+  private:
+    void process_section()
+    {
+        const char* pdata = modinfo_section->get_data();
+        if ( pdata ) {
+            ELFIO::Elf_Xword i = 0;
+            while ( i < modinfo_section->get_size() ) {
+                while ( i < modinfo_section->get_size() && !pdata[i] )
+                    i++;
+                if ( i < modinfo_section->get_size() ) {
+                    std::string info = pdata + i;
+                    size_t      loc  = info.find( '=' );
+                    content.emplace_back( info.substr( 0, loc ),
+                                          info.substr( loc + 1 ) );
+
+                    i += info.length();
+                }
+            }
+        }
+    }
+
+    //------------------------------------------------------------------------------
+  private:
+    S*                                               modinfo_section;
+    std::vector<std::pair<std::string, std::string>> content;
+};
+
+using modinfo_section_accessor = modinfo_section_accessor_template<section>;
+using const_modinfo_section_accessor =
+    modinfo_section_accessor_template<const section>;
+
+} // namespace ELFIO
+
+#endif // ELFIO_MODINFO_HPP