User manual
SIGNUM SYSTEMS 
830 
14 
(gdb) # machid 
(gdb) p /x $r1 
$12 = 0x84d 
(gdb) # boot args 
(gdb) p /x $r2 
$13 = 0x90000100 
(gdb) # Set a hardware breakpoint at start_kernel(). 
(gdb) hbreak start_kernel 
Hardware assisted breakpoint 6 at 0xc00087b0: file init/main.c, line 547. 
(gdb) c 
Continuing. 
Breakpoint 6, start_kernel () at init/main.c:547 
547 in init/main.c 
(gdb) p /x $pc 
$14 = 0xc00087b0 
(gdb) # The virtual memory is initialized. We can debug the kernel now. 
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