1 # SPDX-License-Identifier: GPL-2.0 2 3 config SH_STANDARD_BIOS 4 bool "Use LinuxSH standard BIOS" 5 help 6 Say Y here if your target has the gd 7 package from www.m17n.org (or any co 8 in FLASH or EPROM. The kernel will 9 boot for various housekeeping tasks 10 write characters to a system console 11 on-board Ethernet interface, and shu 12 does not work with machines with an 13 mask ROM and no flash (WindowsCE mac 14 If unsure, say N. 15 16 config STACK_DEBUG 17 bool "Check for stack overflows" 18 depends on DEBUG_KERNEL && PRINTK 19 help 20 This option will cause messages to b 21 drops below a certain limit. Saying 22 every function call and will therefo 23 performance hit. Most users should s 24 25 config EARLY_PRINTK 26 bool "Early printk" 27 depends on SH_STANDARD_BIOS 28 help 29 Say Y here to redirect kernel printk 30 used by the SH-IPL bootloader, start 31 process and ending when the kernel's 32 This option is only useful while por 33 when the kernel may crash or hang be 34 initialised. If unsure, say N. 35 36 config 4KSTACKS 37 bool "Use 4Kb for kernel stacks instea 38 depends on DEBUG_KERNEL && (MMU || BRO 39 help 40 If you say Y here the kernel will us 41 kernel stack attached to each proces 42 running more threads on a system and 43 on the VM subsystem for higher order 44 will also use IRQ stacks to compensa 45 46 config IRQSTACKS 47 bool "Use separate kernel stacks when 48 depends on DEBUG_KERNEL && BROKEN 49 help 50 If you say Y here the kernel will us 51 for handling hard and soft interrupt 52 overflowing the process kernel stack 53 54 config DUMP_CODE 55 bool "Show disassembly of nearby code 56 depends on DEBUG_KERNEL 57 default y if DEBUG_BUGVERBOSE 58 default n 59 help 60 This prints out a code trace of the 61 the faulting instruction as a debugg 62 the kernel in size a bit, most users 63 64 Those looking for more verbose debug 65 66 config DWARF_UNWINDER 67 bool "Enable the DWARF unwinder for st 68 depends on DEBUG_KERNEL 69 select FRAME_POINTER 70 default n 71 help 72 Enabling this option will make stack 73 the cost of an increase in overall k 74 75 config SH_NO_BSS_INIT 76 bool "Avoid zeroing BSS (to speed-up s 77 depends on DEBUG_KERNEL 78 default n 79 help 80 If running in painfully slow environ 81 simulation or from remote memory via 82 can already be guaranteed to ber zer 83 84 For all other cases, say N. If this 85 you aren't sure, say N. 86 87 config MCOUNT 88 def_bool y 89 depends on STACK_DEBUG || FUNCTION_TRA
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