# SPDX-License-Identifier: GPL-2.0 config [31mCONFIG_TRACE_IRQFLAGS_SUPPORT[0m def_bool y config [31mCONFIG_SH_STANDARD_BIOS[0m bool "Use LinuxSH standard BIOS" depends on [31mCONFIG_SUPERH32[0m help Say Y here if your target has the gdb-sh-stub package from www.m17n.org (or any conforming standard LinuxSH BIOS) in FLASH or EPROM. The kernel will use standard BIOS calls during boot for various housekeeping tasks (including calls to read and write characters to a system console, get a [31mCONFIG_MAC[0m address from an on-board Ethernet interface, and shut down the hardware). Note this does not work with machines with an existing operating system in mask [31mCONFIG_ROM[0m and no flash (WindowsCE machines fall in this category). If unsure, say N. config [31mCONFIG_STACK_DEBUG[0m bool "Check for stack overflows" depends on [31mCONFIG_DEBUG_KERNEL[0m && [31mCONFIG_SUPERH32[0m help This option will cause messages to be printed if free stack space drops below a certain limit. Saying Y here will add overhead to every function call and will therefore incur a major performance hit. Most users should say N. config [31mCONFIG_4KSTACKS[0m bool "Use 4Kb for kernel stacks instead of 8Kb" depends on [31mCONFIG_DEBUG_KERNEL[0m && ([31mCONFIG_MMU[0m || [31mCONFIG_BROKEN[0m) && ![31mCONFIG_PAGE_SIZE_64KB[0m help If you say Y here the kernel will use a 4Kb stacksize for the kernel stack attached to each process/thread. This facilitates running more threads on a system and also reduces the pressure on the VM subsystem for higher order allocations. This option will also use IRQ stacks to compensate for the reduced stackspace. config [31mCONFIG_IRQSTACKS[0m bool "Use separate kernel stacks when processing interrupts" depends on [31mCONFIG_DEBUG_KERNEL[0m && [31mCONFIG_SUPERH32[0m && [31mCONFIG_BROKEN[0m help If you say Y here the kernel will use separate kernel stacks for handling hard and soft interrupts. This can help avoid overflowing the process kernel stacks. config [31mCONFIG_DUMP_CODE[0m bool "Show disassembly of nearby code in register dumps" depends on [31mCONFIG_DEBUG_KERNEL[0m && [31mCONFIG_SUPERH32[0m default y if [31mCONFIG_DEBUG_BUGVERBOSE[0m default n help This prints out a code trace of the instructions leading up to the faulting instruction as a debugging aid. As this does grow the kernel in size a bit, most users will want to say N here. Those looking for more verbose debugging output should say Y. config [31mCONFIG_DWARF_UNWINDER[0m bool "Enable the DWARF unwinder for stacktraces" select [31mCONFIG_FRAME_POINTER[0m depends on [31mCONFIG_SUPERH32[0m default n help Enabling this option will make stacktraces more accurate, at the cost of an increase in overall kernel size. config [31mCONFIG_SH_NO_BSS_INIT[0m bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)" depends on [31mCONFIG_DEBUG_KERNEL[0m default n help If running in painfully slow environments, such as an RTL simulation or from remote memory via SHdebug, where the memory can already be guaranteed to ber zeroed on boot, say Y. For all other cases, say N. If this option seems perplexing, or you aren't sure, say N. config [31mCONFIG_SH64_SR_WATCH[0m bool "Debug: set SR.WATCH to enable hardware watchpoints and trace" depends on [31mCONFIG_SUPERH64[0m config [31mCONFIG_MCOUNT[0m def_bool y depends on [31mCONFIG_SUPERH32[0m depends on [31mCONFIG_STACK_DEBUG[0m || [31mCONFIG_FUNCTION_TRACER[0m |