xen: build infrastructure for generating hypercall depending symbols

[cascardo/linux.git] / arch / x86 / syscalls / Makefile

diff --git a/arch/x86/syscalls/Makefile b/arch/x86/syscalls/Makefile
index 3323c27..a55abb9 100644 (file)
--- a/arch/x86/syscalls/Makefile
+++ b/arch/x86/syscalls/Makefile
@@ -19,6 +19,9 @@ quiet_cmd_syshdr = SYSHDR  $@
 quiet_cmd_systbl = SYSTBL  $@
       cmd_systbl = $(CONFIG_SHELL) '$(systbl)' $< $@
 
+quiet_cmd_hypercalls = HYPERCALLS $@
+      cmd_hypercalls = $(CONFIG_SHELL) '$<' $@ $(filter-out $<,$^)
+
 syshdr_abi_unistd_32 := i386
 $(uapi)/unistd_32.h: $(syscall32) $(syshdr)
        $(call if_changed,syshdr)
@@ -47,10 +50,16 @@ $(out)/syscalls_32.h: $(syscall32) $(systbl)
 $(out)/syscalls_64.h: $(syscall64) $(systbl)
        $(call if_changed,systbl)
 
+$(out)/xen-hypercalls.h: $(srctree)/scripts/xen-hypercalls.sh
+       $(call if_changed,hypercalls)
+
+$(out)/xen-hypercalls.h: $(srctree)/include/xen/interface/xen*.h
+
 uapisyshdr-y                   += unistd_32.h unistd_64.h unistd_x32.h
 syshdr-y                       += syscalls_32.h
 syshdr-$(CONFIG_X86_64)                += unistd_32_ia32.h unistd_64_x32.h
 syshdr-$(CONFIG_X86_64)                += syscalls_64.h
+syshdr-$(CONFIG_XEN)           += xen-hypercalls.h
 
 targets        += $(uapisyshdr-y) $(syshdr-y)