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This URL mentions using LLVM IR to perform code analysis. https://stackoverflow.com/questions/9939794/how-to-use-llvm-to-generate-a-call-graph But the first problem to solve is how to convert the commands used in Makefiles to the corresponding LLVM commands. https://pastebin.com/RcnA14Qa The above URL shows the makefile screen output from the bash source code. Where `gcc -c`, `gcc` (link with -L -l), `ar` are used. Note that an archive (.a) file is created by combining many .o files in bash source code make output. However, LLVM does not have llvm-ld anymore. So there is no way...