korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 04:18:39 +08:00
Code Issues Packages Projects Releases Wiki Activity

sh: Decouple mcount from ftrace.

Browse Source 
This adds a general CONFIG_MCOUNT in order to permit mcount generation
without ftrace support. This is primarily for allowing platforms to
enable aggressive stack overflow checking without having to enable ftrace
support. Based on the sparc64 implementation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2009-07-11 19:56:58 +09:00
parent f686d8c11c
commit 473d1cf4ee
5 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/sh/Kconfig.debug
View File

@ -134,4 +134,9 @@ config STACK_DEBUG
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

4
arch/sh/Makefile
View File

@ -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)

2
arch/sh/boot/compressed/Makefile
View File

@ -23,7 +23,7 @@ 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

2
arch/sh/kernel/sh_ksyms_32.c
View File

@ -106,7 +106,7 @@ EXPORT_SYMBOL(flush_dcache_page);
EXPORT_SYMBOL(clear_user_page);
#endif
#ifdef CONFIG_FUNCTION_TRACER
#ifdef CONFIG_MCOUNT
EXPORT_SYMBOL(mcount);
#endif
EXPORT_SYMBOL(csum_partial);

3
arch/sh/lib/Makefile
View File

@ -24,8 +24,7 @@ memcpy-y := memcpy.o
memcpy-$(CONFIG_CPU_SH4) := memcpy-sh4.o
lib-$(CONFIG_MMU) += copy_page.o clear_page.o
lib-$(CONFIG_FUNCTION_TRACER) += mcount.o
lib-$(CONFIG_FUNCTION_GRAPH_TRACER) += mcount.o
lib-$(CONFIG_MCOUNT) += mcount.o
lib-y += $(memcpy-y) $(udivsi3-y)
EXTRA_CFLAGS += -Werror