csearch

CLI tool for finding symbols in C source files.

A few examples:

It can be used to locate (obscure) symbols contained in (obscure) object files:

It can be used to locate declarations in header files (ioctl is not declared in ioctl.h, it turns out):

Installation

git clone https://github.gatech.edu/mbolding3/csearch.git

No dependencies beyond the Python 3 standard libraries, bash, cat, nm, and grep.

Example usage

Object file mode

Let's say you're looking for a symbol named "glUniform1d". Try:

./csource -o -t /lib glUniform1d

explanation -o indicates "object mode" which searches for symbols defined in .o, .so, and .a files. -t /lib specifies that the seach target is the directory /lib. glUniform1d is the pattern to grep for. The pattern follows all the rules of grep, so putting glUniform in this field will fill your screeen with all the various symbols whose name starts with glUniform (there are a lot).

C source and header file mode

Now we want to know what header file declared "glUniform1d". This time we use:

./csource -he -t /usr/include glUniform

explanation The only difference with the previous example is -he which uses header mode. -c searches through .c, .cu, and .cpp files. Note that you can use any combination of available modes, eg. -c -h is valid but might be a little confusing.

Recursive mode

Just set the -r, -R, or --recursive flags.