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>
This commit is contained in:
Paul Mundt 2008-12-17 15:56:06 +09:00
parent fe58cac35f
commit 5d2685d0b3
3 changed files with 22 additions and 1 deletions

View file

@ -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

View file

@ -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)

View file

@ -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