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https://github.com/serge1/ELFIO.git
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Add C wrapper for note, modinfo and dynamic sections
This commit is contained in:
Serge Lamikhov-Center
parent
49c2de32ec
commit
93c46505e0
@ -1,3 +1,25 @@
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/*
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Copyright (C) 2001-2020 by Serge Lamikhov-Center
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <string.h>
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@ -73,7 +95,7 @@ int main( int argc, char* argv[] )
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}
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elfio_symbol_section_accessor_delete( psymbols );
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//------------------------NoA-----------------------------------------------------
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//-----------------------------------------------------------------------------
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// relocation
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//-----------------------------------------------------------------------------
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psection = elfio_get_section_by_name( pelfio, ".rela.dyn" );
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@ -103,7 +125,41 @@ int main( int argc, char* argv[] )
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str = elfio_string_get_string( pstring, pos );
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// printf( "%s\n", str );
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}
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elfio_string_section_accessor_new( pstring );
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elfio_string_section_accessor_delete( pstring );
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//-----------------------------------------------------------------------------
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// note
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//-----------------------------------------------------------------------------
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psection = elfio_get_section_by_name( pelfio, ".note.gnu.build-id" );
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pnote_t pnote = elfio_note_section_accessor_new( pelfio, psection );
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int noteno = elfio_note_get_notes_num( pnote );
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for ( int i = 0; i < noteno; i++ ) {
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Elf_Word type;
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char name[128];
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int name_len = 128;
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char* desc;
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Elf_Word descSize = 128;
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elfio_note_get_note( pnote, i, &type, name, name_len, (void**)&desc,
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&descSize );
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// printf( "[%4d] %s %08x\n", i, name, descSize );
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}
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elfio_note_section_accessor_delete( pnote );
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//-----------------------------------------------------------------------------
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// dynamic
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//-----------------------------------------------------------------------------
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psection = elfio_get_section_by_name( pelfio, ".dynamic" );
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pdynamic_t pdynamic =
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elfio_dynamic_section_accessor_new( pelfio, psection );
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int dynno = elfio_dynamic_get_entries_num( pdynamic );
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for ( int i = 0; i < dynno; i++ ) {
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Elf_Xword tag;
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Elf_Xword value;
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char str[128];
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elfio_dynamic_get_entry( pdynamic, i, &tag, &value, str, 128 );
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printf( "[%4d] %16lx %16lx %s\n", i, tag, value, str );
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}
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elfio_dynamic_section_accessor_delete( pdynamic );
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elfio_delete( pelfio );
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@ -320,3 +320,134 @@ Elf_Word elfio_string_add_string( pstring_t pstring, char* str )
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{
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return pstring->add_string( str );
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}
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//-----------------------------------------------------------------------------
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// note
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//-----------------------------------------------------------------------------
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pnote_t elfio_note_section_accessor_new( pelfio_t pelfio, psection_t psection )
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{
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return new note_section_accessor( *pelfio, psection );
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}
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void elfio_note_section_accessor_delete( pnote_t pnote ) { delete pnote; }
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Elf_Word elfio_note_get_notes_num( pnote_t pnote )
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{
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return pnote->get_notes_num();
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}
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bool elfio_note_get_note( pnote_t pnote,
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Elf_Word index,
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Elf_Word* type,
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char* name,
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int name_len,
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void** desc,
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Elf_Word* descSize )
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{
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std::string name_str;
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bool ret = pnote->get_note( index, *type, name_str, *desc, *descSize );
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strncpy( name, name_str.c_str(), name_len - 1 );
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return ret;
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}
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void elfio_note_add_note( pnote_t pnote,
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Elf_Word type,
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const char* name,
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const void* desc,
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Elf_Word descSize )
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{
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pnote->add_note( type, name, desc, descSize );
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}
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//-----------------------------------------------------------------------------
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// modinfo
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//-----------------------------------------------------------------------------
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pmodinfo_t elfio_modinfo_section_accessor_new( psection_t psection )
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{
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return new modinfo_section_accessor( psection );
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}
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void elfio_modinfo_section_accessor_delete( pmodinfo_t pmodinfo )
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{
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delete pmodinfo;
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}
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Elf_Word elfio_modinfo_get_attribute_num( pmodinfo_t pmodinfo )
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{
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return pmodinfo->get_attribute_num();
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}
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bool elfio_modinfo_get_attribute( pmodinfo_t pmodinfo,
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Elf_Word no,
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char* field,
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int field_len,
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char* value,
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int value_len )
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{
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std::string field_str;
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std::string value_str;
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bool ret = pmodinfo->get_attribute( no, field_str, value_str );
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strncpy( field, field_str.c_str(), field_len - 1 );
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strncpy( value, value_str.c_str(), value_len - 1 );
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return ret;
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}
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bool elfio_modinfo_get_attribute_by_name( pmodinfo_t pmodinfo,
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char* field_name,
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char* value,
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int value_len )
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{
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std::string value_str;
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bool ret = pmodinfo->get_attribute( value_str, value_str );
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strncpy( value, value_str.c_str(), value_len - 1 );
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return ret;
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}
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Elf_Word
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elfio_modinfo_add_attribute( pmodinfo_t pmodinfo, char* field, char* value )
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{
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return pmodinfo->add_attribute( field, value );
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}
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//-----------------------------------------------------------------------------
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// dynamic
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//-----------------------------------------------------------------------------
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pdynamic_t elfio_dynamic_section_accessor_new( pelfio_t pelfio,
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psection_t psection )
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{
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return new dynamic_section_accessor( *pelfio, psection );
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}
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void elfio_dynamic_section_accessor_delete( pdynamic_t pdynamic )
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{
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delete pdynamic;
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}
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Elf_Xword elfio_dynamic_get_entries_num( pdynamic_t pdynamic )
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{
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return pdynamic->get_entries_num();
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}
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bool elfio_dynamic_get_entry( pdynamic_t pdynamic,
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Elf_Xword index,
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Elf_Xword* tag,
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Elf_Xword* value,
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char* str,
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int str_len )
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{
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std::string str_str;
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bool ret = pdynamic->get_entry( index, *tag, *value, str_str );
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strncpy( str, str_str.c_str(), str_len - 1 );
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return ret;
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}
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void elfio_dynamic_add_entry( pdynamic_t pdynamic,
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Elf_Xword tag,
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Elf_Xword value )
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{
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pdynamic->add_entry( tag, value );
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}
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@ -82,6 +82,9 @@ typedef ELFIO::segment* psegment_t;
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typedef ELFIO::symbol_section_accessor* psymbol_t;
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typedef ELFIO::relocation_section_accessor* prelocation_t;
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typedef ELFIO::string_section_accessor* pstring_t;
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typedef ELFIO::note_section_accessor* pnote_t;
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typedef ELFIO::modinfo_section_accessor* pmodinfo_t;
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typedef ELFIO::dynamic_section_accessor* pdynamic_t;
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extern "C"
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{
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@ -92,6 +95,9 @@ typedef void* psegment_t;
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typedef void* psymbol_t;
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typedef void* prelocation_t;
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typedef void* pstring_t;
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typedef void* pnote_t;
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typedef void* pmodinfo_t;
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typedef void* pdynamic_t;
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typedef int bool;
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#endif
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@ -238,6 +244,63 @@ typedef int bool;
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const char* elfio_string_get_string( pstring_t pstring, Elf_Word index );
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Elf_Word elfio_string_add_string( pstring_t pstring, char* str );
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//-----------------------------------------------------------------------------
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// note
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//-----------------------------------------------------------------------------
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pnote_t elfio_note_section_accessor_new( pelfio_t pelfio,
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psection_t psection );
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void elfio_note_section_accessor_delete( pnote_t pstring );
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Elf_Word elfio_note_get_notes_num( pnote_t pnote );
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bool elfio_note_get_note( pnote_t pnote,
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Elf_Word index,
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Elf_Word* type,
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char* name,
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int name_len,
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void** desc,
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Elf_Word* descSize );
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void elfio_note_add_note( pnote_t pnote,
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Elf_Word type,
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const char* name,
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const void* desc,
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Elf_Word descSize );
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//-----------------------------------------------------------------------------
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// modinfo
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//-----------------------------------------------------------------------------
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pmodinfo_t elfio_modinfo_section_accessor_new( psection_t psection );
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void elfio_modinfo_section_accessor_delete( pmodinfo_t pmodinfo );
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Elf_Word elfio_modinfo_get_attribute_num( pmodinfo_t pmodinfo );
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bool elfio_modinfo_get_attribute( pmodinfo_t pmodinfo,
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Elf_Word no,
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char* field,
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int field_len,
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char* value,
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int value_len );
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bool elfio_modinfo_get_attribute_by_name( pmodinfo_t pmodinfo,
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char* field_name,
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char* value,
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int value_len );
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Elf_Word elfio_modinfo_add_attribute( pmodinfo_t pmodinfo,
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char* field,
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char* value );
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//-----------------------------------------------------------------------------
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// dynamic
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//-----------------------------------------------------------------------------
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pdynamic_t elfio_dynamic_section_accessor_new( pelfio_t pelfio,
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psection_t psection );
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void elfio_dynamic_section_accessor_delete( pdynamic_t pdynamic );
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Elf_Xword elfio_dynamic_get_entries_num( pdynamic_t pdynamic );
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bool elfio_dynamic_get_entry( pdynamic_t pdynamic,
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Elf_Xword index,
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Elf_Xword* tag,
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Elf_Xword* value,
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char* str,
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int str_len );
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void elfio_dynamic_add_entry( pdynamic_t pdynamic,
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Elf_Xword tag,
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Elf_Xword value );
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#ifdef __cplusplus
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}
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#endif
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