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98 "Kernel debugging" select "KGDB: kernel debugging with remote gdb". 98 "Kernel debugging" select "KGDB: kernel debugging with remote gdb".
99 </para> 99 </para>
100 <para> 100 <para>
101 It is advised, but not required that you turn on the
102 CONFIG_FRAME_POINTER kernel option. This option inserts code to
103 into the compiled executable which saves the frame information in
104 registers or on the stack at different points which will allow a
105 debugger such as gdb to more accurately construct stack back traces
106 while debugging the kernel.
107 </para>
108 <para>
109 If the architecture that you are using supports the kernel option
110 CONFIG_DEBUG_RODATA, you should consider turning it off. This
111 option will prevent the use of software breakpoints because it
112 marks certain regions of the kernel's memory space as read-only.
113 If kgdb supports it for the architecture you are using, you can
114 use hardware breakpoints if you desire to run with the
115 CONFIG_DEBUG_RODATA option turned on, else you need to turn off
116 this option.
117 </para>
118 <para>
101 Next you should choose one of more I/O drivers to interconnect debugging 119 Next you should choose one of more I/O drivers to interconnect debugging
102 host and debugged target. Early boot debugging requires a KGDB 120 host and debugged target. Early boot debugging requires a KGDB
103 I/O driver that supports early debugging and the driver must be 121 I/O driver that supports early debugging and the driver must be