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Commit 5d2685d0 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Conditionalize the code dumper on CONFIG_DUMP_CODE. 



We don't really want this enabled by default, but it is still quite
useful for debugging. So, make it conditional and leave it off by
default.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent fe58cac3

arch/sh/Kconfig.debug

+12 −0
Original line number Diff line number Diff line
@@ -98,6 +98,18 @@ config IRQSTACKS 
	  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 SH_NO_BSS_INIT

	bool "Avoid zeroing BSS (to speed-up startup on suitable platforms)"

	depends on DEBUG_KERNEL

arch/sh/include/asm/processor_32.h

+8 −0
Original line number Diff line number Diff line
@@ -175,7 +175,15 @@ static __inline__ void enable_fpu(void) 


void show_trace(struct task_struct *tsk, unsigned long *sp,

		struct pt_regs *regs);



#ifdef CONFIG_DUMP_CODE

void show_code(struct pt_regs *regs);

#else

static inline void show_code(struct pt_regs *regs)

{

}

#endif



extern unsigned long get_wchan(struct task_struct *p);



#define KSTK_EIP(tsk)  (task_pt_regs(tsk)->pc)

arch/sh/kernel/Makefile_32

+2 −1
Original line number Diff line number Diff line
@@ -9,7 +9,7 @@ ifdef CONFIG_FUNCTION_TRACER 
CFLAGS_REMOVE_ftrace.o = -pg

endif



obj-y	:= debugtraps.o disassemble.o idle.o io.o io_generic.o irq.o	\

obj-y	:= debugtraps.o idle.o io.o io_generic.o irq.o			\

	   machvec.o process_32.o ptrace_32.o setup.o signal_32.o	\

	   sys_sh.o sys_sh32.o syscalls_32.o time_32.o topology.o	\

	   traps.o traps_32.o
@@ -29,5 +29,6 @@ obj-$(CONFIG_IO_TRAPPED) += io_trapped.o 
obj-$(CONFIG_KPROBES)		+= kprobes.o

obj-$(CONFIG_GENERIC_GPIO)	+= gpio.o

obj-$(CONFIG_DYNAMIC_FTRACE)	+= ftrace.o

obj-$(CONFIG_DUMP_CODE)		+= disassemble.o



EXTRA_CFLAGS += -Werror