In docs/linux/minidump_to_core.md, what generates the initial dump?

[Roke Beedell (RokeJulianLockhart)]

What generates the initial minidump file at https://chromium.googlesource.com/chromium/src/+/c9f326d27a12a9ab7867bb78dff5c8fbb4a0fb12/docs/linux/minidump_to_core.md?pli=1#creating-the-core-file:~:text=$%20./out/Release/minidump%2D2%2Dcore-,foo.dmp,-%3E%20foo.core, which is, in the example, converted into to a GDB-compatible coredump?

I ask per https://discourse.llvm.org/t/can-lldb-save-coredumps-that-are-compatible-with-gdb/86670/5?u=rokejulianlockhart#post_5:~:text=%E2%80%A6or-,just%20use%20minidump%2D2%2Dcore,one%20way%20to%20find%20out.,-Maybe%20@labath%20has, if of any interest.