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authorIsaku Yamahata <yamahata@valinux.co.jp>2008-10-16 22:18:13 -0400
committerTony Luck <tony.luck@intel.com>2008-10-17 13:12:54 -0400
commitf8d1f99f3958c46cdc983743d75d0b31b9accb80 (patch)
treeef91c20de242e67db557e831aa28f9e9597dabef /arch/ia64/kernel/Makefile
parent98c99d7c27973538081a809c114b8d5c6195ecfa (diff)
ia64/pv_ops: paravirtualized instruction checker.
This patch implements a checker to detect instructions which should be paravirtualized instead of direct writing raw instruction. This patch does rough check so that it doesn't fully cover all cases, but it can detects most cases of paravirtualization breakage of hand written assembly codes. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/Makefile')
-rw-r--r--arch/ia64/kernel/Makefile18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 87fea11aecb7..55e6ca8eebda 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -112,5 +112,23 @@ clean-files += $(objtree)/include/asm-ia64/nr-irqs.h
112ASM_PARAVIRT_OBJS = ivt.o entry.o 112ASM_PARAVIRT_OBJS = ivt.o entry.o
113define paravirtualized_native 113define paravirtualized_native
114AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE 114AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE
115AFLAGS_pvchk-sed-$(1) += -D__IA64_ASM_PARAVIRTUALIZED_PVCHECK
116extra-y += pvchk-$(1)
115endef 117endef
116$(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj)))) 118$(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj))))
119
120#
121# Checker for paravirtualizations of privileged operations.
122#
123quiet_cmd_pv_check_sed = PVCHK $@
124define cmd_pv_check_sed
125 sed -f $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed $< > $@
126endef
127
128$(obj)/pvchk-sed-%.s: $(src)/%.S $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed FORCE
129 $(call if_changed_dep,as_s_S)
130$(obj)/pvchk-%.s: $(obj)/pvchk-sed-%.s FORCE
131 $(call if_changed,pv_check_sed)
132$(obj)/pvchk-%.o: $(obj)/pvchk-%.s FORCE
133 $(call if_changed,as_o_S)
134.PRECIOUS: $(obj)/pvchk-sed-%.s $(obj)/pvchk-%.s $(obj)/pvchk-%.o