Codesign gdb using your certificate: codesign -fs gdbc /usr/local/bin/gdb.Login Options > "Join" (next to Network Account Server). Enable root account by following the steps given below:.
Restart taskgated in terminal: killall taskgated.Expand Trust, set Code signing to Always Trust.Find the certificate in System keychain.Create certificate and close Certificate Assistant.Set Location to Login, Unlock System by click on the lock at the top left corner and drag and drop the certificate gdbcert to the System Keychain. If this yields the following error:Ĭertificate Error: Unknown Error =-2,147,414,007 Continue until "Specify a Location For".In menu, open Keychain Access > Certificate Assistant > Create a Certificate.To fix this error, follow the following steps: (please check gdb is codesigned - see taskgated(8)) I even tried compiling GDB myself, and setting all sorts of configure options such as -enable-targets=all, and setting the target to i686-elf, but nothing seems to work, none of my configure options will enable any GDB on macOS Big Sur, either compiled from source, or downloaded from homebrew, to read elf32-i386 kernel binaries.Unable to find Mach task port for process-id 2133: (os/kern) failure (0x5). I also tried using i386-elf-gdb from homebrew but that doesn't work either. I have no clue what's causing it, I'm using the stock version of GDB from homebrew, GDB 10.1. However I recently wiped my Mac and installed a fresh copy of macOS Big Sur, and while GDB from homebrew on Mojave was able to load my kernel binary just fine, on Big Sur, it simply throws this error message: Reading symbols from ~/Kernel/bin/kernel. For the past little bit I've been slowly working on developing a hobbyist kernel, and for all that time I've been using GDB with QEMU to investigate memory locations and registers and what not.
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