Add dynamic extraction of a parameter attribute#3143

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ScriptSathi wants to merge 18 commits intocilium:mainfrom ScriptSathi:pr/ScriptSathi/add-dynamic-paramter-extraction

+1,003-13

Commits on Jan 29, 2025

Add config_btf_arg_depth to extend struct event_config context.
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[generic_calls.h] Add loop to move on arg buffer based on config->btf_argN
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Add GenericTypeFromBTF to search if supported type exists in btf.Type.
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Add ResolveBtfPath function in btf.go to search for members in path
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In ResolveBtfPath, btf.Int types must be declared has pointer
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btf.go : Add LoadBTF to load BTF file if file path is not cached
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btf.go : Extract BTF FuncParams using hook name
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Add Resolve property in KProbeArg
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[generic.go] Take Resolve from KprobeArg to build ConfigBtfArg
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[genericlsm.go] Use arg.Resolve to build ConfigBtfArg for LSM
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generic_lsm.go : Exclude the use of Resolve flag for kernel < 5.8
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[genericuprobe.go] Add exception for arg.Resolve for uprobes
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[generickprobe.go] Add arg.Resolve usage for kprobes
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generic_test.go : Add unit test for resolveBtfArg with fake Kprobe policy
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btf_test.go : Add test for FindBtfFuncParamFromHook
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btf_test.go : Add unit tests for ResolveBtfPath with multiple cases.
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Add new tracingpolicy example for dynamic parameter extraction feature
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Add documentation for arg.Resolve feature
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