embedded linux – How to parse kernel coredump for dmesg logs?

I want to read dmesg logs that are present in the kernel core file. The usual way is to make use of a utility like crash to open the core file with a corresponding vmlinux.

If I am not wrong, reading the dmesg logs from a core file has no symbol dependency and hence no vmlinux dependency. Secondly, the running system may not have any utilities available to open core files. So I want to implement my own script/utility that can open the core file as a normal file and parse it to dump the dmesg logs. Is it possible? If yes, what’s the format of the core file, so that I can locate where the dmesg starts and end?