Make "Code" feature

[plafosse]

Currently the only way to disassemble code in BN is to create a function. There are times, particularly when dealing with firmware, or pieces of code that don't quite fit the "function" model where it would be nice to see the disassembly, without the "function" overhead.

We should allow the creation of "code" regions which when displayed in linear view will do a true linear (i.e. non-recursive) disassembly. Users should be able to create them by hitting "c" on a non-code, non-datavar address in linear disassembly. This should create a code section from the address selected until the end of the section/segment, next-datavar, next-code, or next invalid disassembly.

[reitowo]

No more delays please, i think this feature is really important.

[psifertex]

Thanks for the feedback. Can you describe your intended workflow so we can make sure our future changes will solve it for you?

[reitowo]

Thanks,
For some 'strange' code in some ctf matches, they use trash code to mislead disassembler.
For example they use:

push {r0-r5,r7}
unk #1

to cause an sigill interrupt and handle code there.
Currently BN will stop analyse the binary at the first occurrence of 'unk #1', however there're many more codes following, those are defineitel not function, which requires this Make Code feature.
Just like IDA Pro, you simply press 'C' to convert bunch of binary to disassembly, just like you press 'D' to convert to data.

Moreover, In ARM mode, currently the BN distinguish ARM/thumb by using whether the jump target address is odd or even, please provide a feature to set a block of function/code to arm/thumb mode, just like IDA Pro's Alt+G.