svn commit: r356937 - head/sys/conf

[Kyle Evans]

Author: kevans
Date: Tue Jan 21 05:01:11 2020
New Revision: 356937
URL: https://svnweb.freebsd.org/changeset/base/356937

Log:
  sysent.mk: split interpreter out of target command
  
  The main objective here is to make it easy to identify what needs to change
  in order to use a different sysent generator than the current Lua-based one,
  which may be used to MFC some of the changes that have happened so we can
  avoid parallel accidents in stable branches, for instance.
  
  As a secondary objective, it's now feasible to override the generator on a
  per-Makefile basis if needed, so that one could refactor their Makefile to
  use this while pinning generation to the legacy makesyscalls.sh. I don't
  anticipate any consistent need for such a thing, but it's low-effort to
  achieve.

Modified:
  head/sys/conf/sysent.mk

Modified: head/sys/conf/sysent.mk
==============================================================================
--- head/sys/conf/sysent.mk	Tue Jan 21 00:12:57 2020	(r356936)
+++ head/sys/conf/sysent.mk	Tue Jan 21 05:01:11 2020	(r356937)
@@ -21,8 +21,11 @@ SYSENT_CONF?=	syscalls.conf
 # and set GENERATED.
 SRCS+=	${SYSENT_FILE}
 SRCS+=	${SYSENT_CONF}
-MAKESYSCALLS=	${SYSDIR}/tools/makesyscalls.lua
 
+MAKESYSCALLS_INTERP?=	${LUA}
+MAKESYSCALLS_SCRIPT?=	${SYSDIR}/tools/makesyscalls.lua
+MAKESYSCALLS=	${MAKESYSCALLS_INTERP} ${MAKESYSCALLS_SCRIPT}
+
 all:
 	@echo "make sysent only"
 
@@ -31,5 +34,5 @@ all:
 .ORDER: ${GENERATED}
 sysent: ${GENERATED}
 
-${GENERATED}: ${MAKESYSCALLS} ${SRCS}
-	${LUA} ${MAKESYSCALLS} ${SYSENT_FILE} ${SYSENT_CONF}
+${GENERATED}: ${MAKESYSCALLS_SCRIPT} ${SRCS}
+	${MAKESYSCALLS} ${SYSENT_FILE} ${SYSENT_CONF}