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Commit 3e28ad7b authored by Paul Mundt's avatar Paul Mundt
Browse files

Merge branches 'sh/compressors' and 'sh/ftrace'

parents 040f43e0 e460ab27

arch/sh/Kconfig.debug

+8 −12
Original line number Diff line number Diff line
@@ -61,12 +61,14 @@ config EARLY_PRINTK 
	  select both the EARLY_SCIF_CONSOLE and SH_STANDARD_BIOS, using

	  the kernel command line option to toggle back and forth.



config DEBUG_STACKOVERFLOW

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.

	  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 DEBUG_STACK_USAGE

	bool "Stack utilization instrumentation"
@@ -123,15 +125,9 @@ config SH64_SR_WATCH 
	bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"

	depends on SUPERH64



config STACK_DEBUG

	bool "Enable diagnostic checks of the kernel stack"

	depends on FUNCTION_TRACER

	select DEBUG_STACKOVERFLOW

	default n

	help

	  This option allows checks to be performed on the kernel stack

	  at runtime. Saying Y here will add overhead to every function

	  call and will therefore incur a major performance hit. Most

	  users should say N.

config MCOUNT

	def_bool y

	depends on SUPERH32

	depends on STACK_DEBUG || FUNCTION_TRACER



endmenu

arch/sh/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -186,6 +186,10 @@ KBUILD_CFLAGS += -pipe $(cflags-y) 
KBUILD_CPPFLAGS		+= $(cflags-y)

KBUILD_AFLAGS		+= $(cflags-y)



ifeq ($(CONFIG_MCOUNT),y)

  KBUILD_CFLAGS += -pg

endif



libs-$(CONFIG_SUPERH32)		:= arch/sh/lib/	$(libs-y)

libs-$(CONFIG_SUPERH64)		:= arch/sh/lib64/ $(libs-y)

arch/sh/boot/compressed/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -24,7 +24,7 @@ IMAGE_OFFSET := $(shell /bin/bash -c 'printf "0x%08x" \ 


LIBGCC	:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)



ifeq ($(CONFIG_FUNCTION_TRACER),y)

ifeq ($(CONFIG_MCOUNT),y)

ORIG_CFLAGS := $(KBUILD_CFLAGS)

KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))

endif

arch/sh/kernel/irq.c

+0 −17
Original line number Diff line number Diff line
@@ -114,23 +114,6 @@ asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs) 
#endif



	irq_enter();



#ifdef CONFIG_DEBUG_STACKOVERFLOW

	/* Debugging check for stack overflow: is there less than 1KB free? */

	{

		long sp;



		__asm__ __volatile__ ("and r15, %0" :

					"=r" (sp) : "0" (THREAD_SIZE - 1));



		if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {

			printk("do_IRQ: stack overflow: %ld\n",

			       sp - sizeof(struct thread_info));

			dump_stack();

		}

	}

#endif



	irq = irq_demux(intc_evt2irq(irq));



#ifdef CONFIG_IRQSTACKS

arch/sh/kernel/sh_ksyms_32.c

+2 −2
Original line number Diff line number Diff line
@@ -106,8 +106,8 @@ EXPORT_SYMBOL(flush_dcache_page); 
EXPORT_SYMBOL(clear_user_page);

#endif



#ifdef CONFIG_FUNCTION_TRACER

EXPORT_SYMBOL(mcount);

#ifdef CONFIG_MCOUNT

DECLARE_EXPORT(mcount);

#endif

EXPORT_SYMBOL(csum_partial);

EXPORT_SYMBOL(csum_partial_copy_generic);