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37744feebc
sh5 never became a product and has probably never really worked. Remove it by recursively deleting all associated Kconfig options and all corresponding files. Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Rich Felker <dalias@libc.org>
81 lines
2.8 KiB
Plaintext
81 lines
2.8 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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config TRACE_IRQFLAGS_SUPPORT
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def_bool y
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config SH_STANDARD_BIOS
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bool "Use LinuxSH standard BIOS"
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help
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Say Y here if your target has the gdb-sh-stub
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package from www.m17n.org (or any conforming standard LinuxSH BIOS)
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in FLASH or EPROM. The kernel will use standard BIOS calls during
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boot for various housekeeping tasks (including calls to read and
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write characters to a system console, get a MAC address from an
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on-board Ethernet interface, and shut down the hardware). Note this
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does not work with machines with an existing operating system in
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mask ROM and no flash (WindowsCE machines fall in this category).
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If unsure, say N.
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config STACK_DEBUG
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bool "Check for stack overflows"
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depends on DEBUG_KERNEL
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help
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This option will cause messages to be printed if free stack space
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drops below a certain limit. Saying Y here will add overhead to
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every function call and will therefore incur a major
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performance hit. Most users should say N.
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config 4KSTACKS
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bool "Use 4Kb for kernel stacks instead of 8Kb"
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depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB
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help
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If you say Y here the kernel will use a 4Kb stacksize for the
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kernel stack attached to each process/thread. This facilitates
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running more threads on a system and also reduces the pressure
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on the VM subsystem for higher order allocations. This option
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will also use IRQ stacks to compensate for the reduced stackspace.
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config IRQSTACKS
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bool "Use separate kernel stacks when processing interrupts"
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depends on DEBUG_KERNEL && BROKEN
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help
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If you say Y here the kernel will use separate kernel stacks
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for handling hard and soft interrupts. This can help avoid
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overflowing the process kernel stacks.
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config DUMP_CODE
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bool "Show disassembly of nearby code in register dumps"
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depends on DEBUG_KERNEL
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default y if DEBUG_BUGVERBOSE
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default n
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help
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This prints out a code trace of the instructions leading up to
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the faulting instruction as a debugging aid. As this does grow
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the kernel in size a bit, most users will want to say N here.
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Those looking for more verbose debugging output should say Y.
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config DWARF_UNWINDER
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bool "Enable the DWARF unwinder for stacktraces"
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select FRAME_POINTER
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default n
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help
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Enabling this option will make stacktraces more accurate, at
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the cost of an increase in overall kernel size.
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config SH_NO_BSS_INIT
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bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"
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depends on DEBUG_KERNEL
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default n
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help
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If running in painfully slow environments, such as an RTL
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simulation or from remote memory via SHdebug, where the memory
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can already be guaranteed to ber zeroed on boot, say Y.
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For all other cases, say N. If this option seems perplexing, or
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you aren't sure, say N.
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config MCOUNT
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def_bool y
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depends on STACK_DEBUG || FUNCTION_TRACER
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