From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/sh/Kconfig.debug | 91 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 kernel/arch/sh/Kconfig.debug (limited to 'kernel/arch/sh/Kconfig.debug') diff --git a/kernel/arch/sh/Kconfig.debug b/kernel/arch/sh/Kconfig.debug new file mode 100644 index 000000000..5f2bb4242 --- /dev/null +++ b/kernel/arch/sh/Kconfig.debug @@ -0,0 +1,91 @@ +menu "Kernel hacking" + +config TRACE_IRQFLAGS_SUPPORT + def_bool y + +source "lib/Kconfig.debug" + +config SH_STANDARD_BIOS + bool "Use LinuxSH standard BIOS" + depends on SUPERH32 + 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 MAC 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 ROM and no flash (WindowsCE machines fall in this category). + If unsure, say N. + +config STACK_DEBUG + bool "Check for stack overflows" + depends on DEBUG_KERNEL && SUPERH32 + 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 4KSTACKS + bool "Use 4Kb for kernel stacks instead of 8Kb" + depends on DEBUG_KERNEL && (MMU || BROKEN) && !PAGE_SIZE_64KB + 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 IRQSTACKS + bool "Use separate kernel stacks when processing interrupts" + depends on DEBUG_KERNEL && SUPERH32 && BROKEN + 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 DUMP_CODE + bool "Show disassembly of nearby code in register dumps" + depends on DEBUG_KERNEL && SUPERH32 + default y if DEBUG_BUGVERBOSE + 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 DWARF_UNWINDER + bool "Enable the DWARF unwinder for stacktraces" + select FRAME_POINTER + depends on SUPERH32 + default n + help + Enabling this option will make stacktraces more accurate, at + the cost of an increase in overall kernel size. + +config SH_NO_BSS_INIT + bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)" + depends on DEBUG_KERNEL + 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 SH64_SR_WATCH + bool "Debug: set SR.WATCH to enable hardware watchpoints and trace" + depends on SUPERH64 + +config MCOUNT + def_bool y + depends on SUPERH32 + depends on STACK_DEBUG || FUNCTION_TRACER + +endmenu -- cgit 1.2.3-korg