Root/
| Source at commit 0de2b2b3be81048189a32f7a3d3ba0ba9ec817b6 created 9 years 1 day ago. By Maarten ter Huurne, MIPS: JZ4740: Fixed value for round robin constant. | |
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| 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 4KSTACKS |
| 32 | bool "Use 4Kb for kernel stacks instead of 8Kb" |
| 33 | depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB |
| 34 | help |
| 35 | If you say Y here the kernel will use a 4Kb stacksize for the |
| 36 | kernel stack attached to each process/thread. This facilitates |
| 37 | running more threads on a system and also reduces the pressure |
| 38 | on the VM subsystem for higher order allocations. This option |
| 39 | will also use IRQ stacks to compensate for the reduced stackspace. |
| 40 | |
| 41 | config IRQSTACKS |
| 42 | bool "Use separate kernel stacks when processing interrupts" |
| 43 | depends on DEBUG_KERNEL && SUPERH32 && BROKEN |
| 44 | help |
| 45 | If you say Y here the kernel will use separate kernel stacks |
| 46 | for handling hard and soft interrupts. This can help avoid |
| 47 | overflowing the process kernel stacks. |
| 48 | |
| 49 | config DUMP_CODE |
| 50 | bool "Show disassembly of nearby code in register dumps" |
| 51 | depends on DEBUG_KERNEL && SUPERH32 |
| 52 | default y if DEBUG_BUGVERBOSE |
| 53 | default n |
| 54 | help |
| 55 | This prints out a code trace of the instructions leading up to |
| 56 | the faulting instruction as a debugging aid. As this does grow |
| 57 | the kernel in size a bit, most users will want to say N here. |
| 58 | |
| 59 | Those looking for more verbose debugging output should say Y. |
| 60 | |
| 61 | config DWARF_UNWINDER |
| 62 | bool "Enable the DWARF unwinder for stacktraces" |
| 63 | select FRAME_POINTER |
| 64 | default n |
| 65 | help |
| 66 | Enabling this option will make stacktraces more accurate, at |
| 67 | the cost of an increase in overall kernel size. |
| 68 | |
| 69 | config SH_NO_BSS_INIT |
| 70 | bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)" |
| 71 | depends on DEBUG_KERNEL |
| 72 | default n |
| 73 | help |
| 74 | If running in painfully slow environments, such as an RTL |
| 75 | simulation or from remote memory via SHdebug, where the memory |
| 76 | can already be guaranteed to ber zeroed on boot, say Y. |
| 77 | |
| 78 | For all other cases, say N. If this option seems perplexing, or |
| 79 | you aren't sure, say N. |
| 80 | |
| 81 | config SH64_SR_WATCH |
| 82 | bool "Debug: set SR.WATCH to enable hardware watchpoints and trace" |
| 83 | depends on SUPERH64 |
| 84 | |
| 85 | config MCOUNT |
| 86 | def_bool y |
| 87 | depends on SUPERH32 |
| 88 | depends on STACK_DEBUG || FUNCTION_TRACER |
| 89 | |
| 90 | endmenu |
| 91 | |
Branches:
ben-wpan
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javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
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jz-2.6.36
jz-2.6.37
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jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
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jz-3.6-rc2-pwm
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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
