Hello Everybody, I am new to coreboot build environment and need your help in using gdb with coreboot.
I want to use gdb to take a closer look at the stages in coreboot and the order they are executed in. I also want to single step through the code to see what functions are being called in each stage and during transition from one stage to another. Firstly, I am not even sure if gdb works during transition. Does it? These are the steps I followed: 1. First I set up the coreboot environment by following this tutorial. https://doc.coreboot.org/tutorial/part1.html. (I also enabled Gdb Wait by going to Debugging menu in coreboot's configuration.) 2. Then I ran the image on qemu $ qemu-system-x86_64 -bios build/coreboot.rom -serial stdio -s -S 3. In another terminal, I started gdb and entered the following command $ target remote localhost:1234 4. From here, I am able to single step using 'si' but I am not able to set a breakpoint using 'break' at say romstage.c or hardwaremain.c. I get the following error: ''No symbol table is loaded. Use the "file" command. Make breakpoint pending on future shared library load? (y or [n])'' Can anyone tell me where I went wrong? Thanks, Harshit _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
