References should specify the access type

[radare]

This information shuold be extracted from the referencing instruction. For data references:

• READ mov ax, [0x800]
• WRITE mov [0x800], ax
• REF lea ax, [0x800]

As for namings 'READ' can be 'r', WRITE can be 'w', and REF.. can be PTR this is 'p'. The access type for all the cod refs should be exec.

In addition to the CALL JMP .. refs which should be of type EXEC

What's left:

• Define command syntax to set that information in the Ref struct
• Update the output of the ax commands to show that information
• Verify the correctness of the results

Those only make sense to be for axd and axs (data references), but ideally will be good to have it working for any for proper flexibility.

So my proposal is to add a 3rd argument specifying the access type:

• axd 0x808080 0x303030 w
• axd 0x808060 0x303030 r

[Maijin]

#7120

[radare]

Initial work done in 986ab7a

[radare]

related to the xrefs rework you did

[radare]

ghidra copied us for being lazy

[radare]

another proof that the nsa snitch on us :P

[radare]

we cannot delay more this feature

[whoami-defnotme]

Just dug this issue up and I think it would be great to see this land. It'd be valuable to do things like "find all write references to the DATA section of my target binary."