Added arch and bits specific flag to asm call from elf wrapper

[en0]

In the ELF class, the asm(...) method wraps the pwnlib.asm:asm which defaults to 32 bits. I added bits, arch, and endianness to that call so that calls to the ELF.asm(...) method will use the flags that apply to the loaded ELF file.

[Arusekk]

This looks good, although it might be useful to override the settings.

Just saying, not a requirement, since it was not there before.

[en0]

This looks good, although it might be useful to override the settings.

Just saying, not a requirement, since it was not there before.

Are you suggesting we change the signature of ELF.asm(...) from def asm(self, address, assembly): to something like def asm(self, address, assembly, **kwargs):?

[peace-maker]

Probably using a local context.

[en0]

I am not sure I understand why or how this would apply. The method I updated is an instance method on the ELF object. The assembled instructions will be written into the ELF data which is going to match self.arch. I am willing to make the suggested changes. But, I am not sure i understand what your ask is. Can you help me understand?

[Arusekk]

An example of when this would be useful would be arm vs thumb, or some other combination that can be executed on a single processor. But this is not a must and if you feel this would be useless, it can be merged as it is now.

[en0]

Okay, I understand. Thank you for explaining. I think that is a good idea. However, can we add it as a subsequent merge? I think this MR holds value now and i don't want to hold it up while i figure out how to include the local context part. I will start a second MR with that if that works for you.