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| author |   Isaku Yamahata <yamahata@valinux.co.jp> | 2008-10-17 11:18:13 +0900 |
|---|---|---|
| committer |   Tony Luck <tony.luck@intel.com> | 2008-10-17 10:12:54 -0700 |
| commit | f8d1f99f3958c46cdc983743d75d0b31b9accb80 (patch) | |
| tree | ef91c20de242e67db557e831aa28f9e9597dabef /arch/ia64/kernel/Makefile | |
| parent | ia64/xen: a recipe for using xen/ia64 with pv_ops. (diff) | |
| download | linux-dev-f8d1f99f3958c46cdc983743d75d0b31b9accb80.tar.xz linux-dev-f8d1f99f3958c46cdc983743d75d0b31b9accb80.zip | |
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/Makefile | 18 |
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 += $(objtree)/include/asm-ia64/nr-irqs.h ASM_PARAVIRT_OBJS = ivt.o entry.o define paravirtualized_native AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_NATIVE +AFLAGS_pvchk-sed-$(1) += -D__IA64_ASM_PARAVIRTUALIZED_PVCHECK +extra-y += pvchk-$(1) endef $(foreach obj,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_native,$(obj)))) + +# +# Checker for paravirtualizations of privileged operations. +# +quiet_cmd_pv_check_sed = PVCHK $@ +define cmd_pv_check_sed + sed -f $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed $< > $@ +endef + +$(obj)/pvchk-sed-%.s: $(src)/%.S $(srctree)/arch/$(SRCARCH)/scripts/pvcheck.sed FORCE + $(call if_changed_dep,as_s_S) +$(obj)/pvchk-%.s: $(obj)/pvchk-sed-%.s FORCE + $(call if_changed,pv_check_sed) +$(obj)/pvchk-%.o: $(obj)/pvchk-%.s FORCE + $(call if_changed,as_o_S) +.PRECIOUS: $(obj)/pvchk-sed-%.s $(obj)/pvchk-%.s $(obj)/pvchk-%.o |