Fix: Error in binary with tag DERP but no 'name' attribute

[aryan-rajoria]

Fixes AttributeError encountered when running blint on shared libraries.
fixes #116

 Parsing 1 binaries ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━   0% -:--:--[21:45:46] ERROR    Caught <class 'AttributeError'>: 'lief._lief.ELF.DynamicEntryRunPath' object has no attribute
                    'name' while parsing                                                                         
                    ~/Downloads/projects/blintdbpackages/wrapdb/build/openssl/subprojects/openssl-3
                    .0.8/libssl.so.                                                                              
                    Traceback (most recent call last):                                                           
                      File "~/projects/supplychain/blint/blint/binary.py", line 750, in parse      
                        metadata = add_elf_metadata(exe_file, metadata, parsed_obj)                              
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                              
                      File "~/projects/supplychain/blint/blint/binary.py", line 809, in            
                    add_elf_metadata                                                                             
                        metadata = add_elf_dynamic_entries(dynamic_entries, metadata)                            
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                            
                      File "~/projects/supplychain/blint/blint/binary.py", line 920, in            
                    add_elf_dynamic_entries                                                                      
                        "name": demangle_symbolic_name(entry.name),                                              
                                                       ^^^^^^^^^^                                                
                    AttributeError: 'lief._lief.ELF.DynamicEntryRunPath' object has no attribute 'name' 

[aryan-rajoria]

fixed.json
previous.json

[prabhu]

This got me thinking. Perhaps the name is "runpath" and the value is the demangled value.

[aryan-rajoria]

When debugging an entry I get name: libfdk_acc.so, and value: 318 when tag is NEEDED.
and, in case of RUNPATH I get:
name: '$ORIGIN/'
value: 375

please suggest if this is okay?

[prabhu]

@aryan-rajoria the attached files do not have those tags. Can you run the default command and share the metadata file instead?

[aryan-rajoria]

aac-enc-metadata.json

Metadata generated with the changes

[aryan-rajoria]

I have added RUNPATH and RPATH seperately,
aac_enc metadata above uses the RUNPATH, while I could not find examples of binaries using RPATH as gcc has deprecated it. I compiled a small script using --disable-new-dtags arguments in gcc. Here is the results.
rpath-example-metadata.json

[prabhu]

Thank you!