Re: Feedback on my development setup

[ngn <ngn@ngn.tf>]

On Wed, Apr 17, 2024 at 05:18:34PM -0400, Josh Marshall wrote:
> One issue I'm seeing is that gdb isn't seeing debugging symbols.  I'm
> getting the following output with the config linked.
> 
> https://pastebin.com/tjq7QtQk
> 
> ```
> anadon@botamon:~/Documents/code/linux$ gdb arch/x86/boot/bzImage
> GNU gdb (Ubuntu 15.0.50.20240403-0ubuntu1) 15.0.50.20240403-git
> Copyright (C) 2024 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
> Type "show copying" and "show warranty" for details.
> This GDB was configured as "x86_64-linux-gnu".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <https://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
>     <http://www.gnu.org/software/gdb/documentation/>.
> 
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from arch/x86/boot/bzImage...
> (No debugging symbols found in arch/x86/boot/bzImage)
> ```
> 

You should load vmlinux to the gdb, not the bzImage. bzImage is a
compressed version of the kernel and its used boot, vmlinux is the
static ELF binary that contains the debugging symbols.