What if I only want to analyze a single function?

[psifertex]

I have a large binary that I only want to analyze a single function, how can I do that?

[psifertex]

1. Use open with options
2. Find "Max Function Size", set it to 0
3. Navigate to the address/function in question and either use p to create the function if it doesn't exist and then click the header on triggering analysis, or click the header to allow analysis.

To do the same thing from the API:

# Note you will need to add BN to your path and a commercial/headless license to do this outside of the UI

from binaryninja import BinaryViewType, FunctionAnalysisSkipOverride
bv = BinaryViewType.get_view_of_file_with_options('/bin/ls', options={'analysis.limits.maxFunctionSize': 0})

# Create, or get the existing one depending on whether the function is already created. 
# Will depend on whether it's an export or entry point, findable via initial recursive decent, etc 
#f = bv.create_user_function(0x10000000)

f = bv.get_function_at(0x10000000)
f.analysis_skipped = False

# This line is a short-hand way of doing:
# f.analysis_skip_override = FunctionAnalysisSkipOverride.NeverSkipFunctionAnalysis