3 source "lib/Kconfig.debug"
5 config DEBUG_STACKOVERFLOW
6 bool "Check for stack overflows"
7 depends on DEBUG_KERNEL && PPC64
9 This option will cause messages to be printed if free stack space
10 drops below a certain limit.
12 config DEBUG_STACK_USAGE
13 bool "Stack utilization instrumentation"
14 depends on DEBUG_KERNEL && PPC64
16 Enables the display of the minimum amount of free stack which each
17 task has ever had available in the sysrq-T and sysrq-P debug output.
19 This option will slow down process creation somewhat.
22 bool "Enable debugger hooks"
23 depends on DEBUG_KERNEL
25 Include in-kernel hooks for kernel debuggers. Unless you are
26 intending to debug the kernel, say N here.
29 bool "Include kgdb kernel debugger"
30 depends on DEBUGGER && (BROKEN || PPC_GEN550 || 4xx)
33 Include in-kernel hooks for kgdb, the Linux kernel source level
34 debugger. See <http://kgdb.sourceforge.net/> for more information.
35 Unless you are intending to debug the kernel, say N here.
57 bool "Enable serial console thru kgdb port"
58 depends on KGDB && 8xx || CPM2
60 If you enable this, all serial console messages will be sent
65 bool "Include xmon kernel debugger"
66 depends on DEBUGGER && !PPC_ISERIES
68 Include in-kernel hooks for the xmon kernel monitor/debugger.
69 Unless you are intending to debug the kernel, say N here.
70 Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise
71 nothing will appear on the screen (xmon writes directly to the
73 The cmdline option 'xmon' or 'xmon=early' will drop into xmon
74 very early during boot. 'xmon=on' will just enable the xmon
75 debugger hooks. 'xmon=off' will disable the debugger hooks
76 if CONFIG_XMON_DEFAULT is set.
79 bool "Enable xmon by default"
82 xmon is normally disabled unless booted with 'xmon=on'.
83 Use 'xmon=off' to disable xmon init during runtime.
86 bool "Use separate kernel stacks when processing interrupts"
89 If you say Y here the kernel will use separate kernel stacks
90 for handling hard and soft interrupts. This can help avoid
91 overflowing the process kernel stacks.
94 bool "Include BDI-2000 user context switcher"
95 depends on DEBUG_KERNEL && PPC32
97 Include in-kernel support for the Abatron BDI2000 debugger.
98 Unless you are intending to debug the kernel with one of these
102 bool "Support for early boot text console (BootX or OpenFirmware only)"
103 depends PPC_OF && !PPC_ISERIES
105 Say Y here to see progress messages from the boot firmware in text
106 mode. Requires either BootX or Open Firmware.
108 config SERIAL_TEXT_DEBUG
109 bool "Support for early boot texts over serial port"
110 depends on 4xx || LOPEC || MV64X60 || PPLUS || PRPMC800 || \
111 PPC_GEN550 || PPC_MPC52xx
113 config PPC_EARLY_DEBUG
114 bool "Early debugging (dangerous)"
117 prompt "Early debugging console"
118 depends on PPC_EARLY_DEBUG
120 Use the selected console for early debugging. Careful, if you
121 enable debugging for the wrong type of machine your kernel
124 config PPC_EARLY_DEBUG_LPAR
125 bool "LPAR HV Console"
126 depends on PPC_PSERIES
128 Select this to enable early debugging for a machine with a HVC
131 config PPC_EARLY_DEBUG_G5
133 depends on PPC_PMAC64
135 Select this to enable early debugging for Apple G5 machines.
137 config PPC_EARLY_DEBUG_RTAS_PANEL
141 Select this to enable early debugging via the RTAS panel.
143 config PPC_EARLY_DEBUG_RTAS_CONSOLE
146 select UDBG_RTAS_CONSOLE
148 Select this to enable early debugging via the RTAS console.
150 config PPC_EARLY_DEBUG_MAPLE
151 bool "Maple real mode"
154 Select this to enable early debugging for Maple.
156 config PPC_EARLY_DEBUG_ISERIES
157 bool "iSeries HV Console"
158 depends on PPC_ISERIES
160 Select this to enable early debugging for legacy iSeries. You need
161 to hit "Ctrl-x Ctrl-x" to see the messages on the console.