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| author | Paul Mundt <lethal@linux-sh.org> | 2008-12-17 15:56:06 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-12-22 18:44:47 +0900 |
| commit | 5d2685d0b3edc51ecc92604d5b7f5ca9b29b90bb (patch) | |
| tree | 389a38e95a74306e94c7bffc1b05635ff08db754 /arch/sh | |
| parent | fe58cac35f48a9598c2a1360c2204c73f7bca2d2 (diff) | |
| download | op-kernel-dev-5d2685d0b3edc51ecc92604d5b7f5ca9b29b90bb.zip op-kernel-dev-5d2685d0b3edc51ecc92604d5b7f5ca9b29b90bb.tar.gz | |
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: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/Kconfig.debug | 12 | ||||
| -rw-r--r-- | arch/sh/include/asm/processor_32.h | 8 | ||||
| -rw-r--r-- | arch/sh/kernel/Makefile_32 | 3 |
3 files changed, 22 insertions, 1 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug index 0dc340d..0d62681 100644 --- a/arch/sh/Kconfig.debug +++ b/arch/sh/Kconfig.debug @@ -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 diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h index 2bfb735..d79063c 100644 --- a/arch/sh/include/asm/processor_32.h +++ b/arch/sh/include/asm/processor_32.h @@ -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) diff --git a/arch/sh/kernel/Makefile_32 b/arch/sh/kernel/Makefile_32 index 3c975ab..2e1b86e 100644 --- a/arch/sh/kernel/Makefile_32 +++ b/arch/sh/kernel/Makefile_32 @@ -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 |
