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Add C language example of symbol access

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This commit is contained in:
Serge Lamikhov-Center 2020-10-10 19:11:35 +03:00
parent 7366fce91f
commit 91fc3ea58c
2 changed files with 35 additions and 13 deletions
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28
examples/c_interop/c_example.c
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@ -17,6 +17,9 @@ int main( int argc, char* argv[] )
printf( "Section Entry : %d\n", elfio_get_section_entry_size( pelfio ) );
printf( "Segment Entry : %d\n", elfio_get_segment_entry_size( pelfio ) );
/* Uncomment a block of the interest */
/*
int secno = elfio_get_sections_num( pelfio );
printf( "\nSections No : %d\n", secno );
@ -29,7 +32,9 @@ int main( int argc, char* argv[] )
elfio_section_get_address( psection ),
elfio_section_get_size( psection ) );
}
/*
*/
/*
int segno = elfio_get_segments_num( pelfio );
printf( "\nSegments No : %d\n", segno );
@ -40,9 +45,26 @@ int main( int argc, char* argv[] )
elfio_segment_get_memory_size( psegment ),
elfio_segment_get_file_size( psegment ) );
}
*/
*/
/*
psection_t psection = elfio_get_section_by_name( pelfio, ".symtab" );
psymbol_t psymbols = elfio_symbol_section_accessor_new( pelfio, psection );
int symno = elfio_symbol_get_symbols_num( psymbols );
for ( int i = 0; i < symno; i++ ) {
char name[128];
Elf64_Addr value;
Elf_Xword size;
unsigned char bind;
unsigned char type;
Elf_Half section_index;
unsigned char other;
elfio_symbol_get_symbol( psymbols, i, name, 128, &value, &size,
&bind, &type, &section_index, &other );
printf( "[%4d] %10lu, %4lu %s\n", i, value, size, name );
}
elfio_symbol_section_accessor_delete( psymbols );
*/
elfio_delete( pelfio );

20
examples/c_interop/elfio_c_interop.cpp
View File

@ -207,16 +207,16 @@ Elf_Xword elfio_symbol_get_symbols_num( psymbol_t psymbol )
return psymbol->get_symbols_num();
}
bool get_symbol( psymbol_t psymbol,
Elf_Xword index,
char* name,
int name_len,
Elf64_Addr* value,
Elf_Xword* size,
unsigned char* bind,
unsigned char* type,
Elf_Half* section_index,
unsigned char* other )
bool elfio_symbol_get_symbol( psymbol_t psymbol,
Elf_Xword index,
char* name,
int name_len,
Elf64_Addr* value,
Elf_Xword* size,
unsigned char* bind,
unsigned char* type,
Elf_Half* section_index,
unsigned char* other )
{
std::string name_param;
bool ret = psymbol->get_symbol( index, name_param, *value, *size, *bind,