Root/
1 | menu "Kernel hacking" |
2 | |
3 | config TRACE_IRQFLAGS_SUPPORT |
4 | def_bool y |
5 | |
6 | source "lib/Kconfig.debug" |
7 | |
8 | config SH_STANDARD_BIOS |
9 | bool "Use LinuxSH standard BIOS" |
10 | depends on SUPERH32 |
11 | help |
12 | Say Y here if your target has the gdb-sh-stub |
13 | package from www.m17n.org (or any conforming standard LinuxSH BIOS) |
14 | in FLASH or EPROM. The kernel will use standard BIOS calls during |
15 | boot for various housekeeping tasks (including calls to read and |
16 | write characters to a system console, get a MAC address from an |
17 | on-board Ethernet interface, and shut down the hardware). Note this |
18 | does not work with machines with an existing operating system in |
19 | mask ROM and no flash (WindowsCE machines fall in this category). |
20 | If unsure, say N. |
21 | |
22 | config STACK_DEBUG |
23 | bool "Check for stack overflows" |
24 | depends on DEBUG_KERNEL && SUPERH32 |
25 | help |
26 | This option will cause messages to be printed if free stack space |
27 | drops below a certain limit. Saying Y here will add overhead to |
28 | every function call and will therefore incur a major |
29 | performance hit. Most users should say N. |
30 | |
31 | config DEBUG_STACK_USAGE |
32 | bool "Stack utilization instrumentation" |
33 | depends on DEBUG_KERNEL |
34 | help |
35 | Enables the display of the minimum amount of free stack which each |
36 | task has ever had available in the sysrq-T and sysrq-P debug output. |
37 | |
38 | This option will slow down process creation somewhat. |
39 | |
40 | config 4KSTACKS |
41 | bool "Use 4Kb for kernel stacks instead of 8Kb" |
42 | depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB |
43 | help |
44 | If you say Y here the kernel will use a 4Kb stacksize for the |
45 | kernel stack attached to each process/thread. This facilitates |
46 | running more threads on a system and also reduces the pressure |
47 | on the VM subsystem for higher order allocations. This option |
48 | will also use IRQ stacks to compensate for the reduced stackspace. |
49 | |
50 | config IRQSTACKS |
51 | bool "Use separate kernel stacks when processing interrupts" |
52 | depends on DEBUG_KERNEL && SUPERH32 && BROKEN |
53 | help |
54 | If you say Y here the kernel will use separate kernel stacks |
55 | for handling hard and soft interrupts. This can help avoid |
56 | overflowing the process kernel stacks. |
57 | |
58 | config DUMP_CODE |
59 | bool "Show disassembly of nearby code in register dumps" |
60 | depends on DEBUG_KERNEL && SUPERH32 |
61 | default y if DEBUG_BUGVERBOSE |
62 | default n |
63 | help |
64 | This prints out a code trace of the instructions leading up to |
65 | the faulting instruction as a debugging aid. As this does grow |
66 | the kernel in size a bit, most users will want to say N here. |
67 | |
68 | Those looking for more verbose debugging output should say Y. |
69 | |
70 | config DWARF_UNWINDER |
71 | bool "Enable the DWARF unwinder for stacktraces" |
72 | select FRAME_POINTER |
73 | default n |
74 | help |
75 | Enabling this option will make stacktraces more accurate, at |
76 | the cost of an increase in overall kernel size. |
77 | |
78 | config SH_NO_BSS_INIT |
79 | bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)" |
80 | depends on DEBUG_KERNEL |
81 | default n |
82 | help |
83 | If running in painfully slow environments, such as an RTL |
84 | simulation or from remote memory via SHdebug, where the memory |
85 | can already be gauranteed to ber zeroed on boot, say Y. |
86 | |
87 | For all other cases, say N. If this option seems perplexing, or |
88 | you aren't sure, say N. |
89 | |
90 | config SH64_SR_WATCH |
91 | bool "Debug: set SR.WATCH to enable hardware watchpoints and trace" |
92 | depends on SUPERH64 |
93 | |
94 | config MCOUNT |
95 | def_bool y |
96 | depends on SUPERH32 |
97 | depends on STACK_DEBUG || FUNCTION_TRACER |
98 | |
99 | endmenu |
100 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9