freebsd-nq/sys/conf/sysent.mk
Kyle Evans 8ea3921f93 sysent: regenerate files every time
This forces everything to be regenerated by marking makesyscalls.lua
as .PHONY, which may be helpful in, e.g., rebase scenarios, which may
have unexpected effects on mtimes but still really need a regen.

For now we apply this to the default sysent target, which is ran
manually and not as a part of buildkernel.  We can reconsider this if
someone manually running it has issues with the runtime, but the top
level sysent target can run each in parallel; I recommend -j4 or so.

Requested by:	kib
Reviewed by:	brooks, kib (both earlier version)
Differential Revision:	https://reviews.freebsd.org/D33357
2021-12-16 20:56:28 -06:00

50 lines
1.4 KiB
Makefile

# $FreeBSD$
# Don't use an OBJDIR
.OBJDIR: ${.CURDIR}
.include <bsd.sysdir.mk>
.include <src.lua.mk>
COMMON_GENERATED= proto.h \
syscall.h \
syscalls.c \
sysent.c \
systrace_args.c
GENERATED_PREFIX?=
GENERATED?= ${COMMON_GENERATED:S/^/${GENERATED_PREFIX}/}
SYSENT_FILE?= syscalls.master
SYSENT_CONF?= syscalls.conf
# Including Makefile should override SYSENT_FILE and SYSENT_CONF as needed,
# and set GENERATED.
SRCS+= ${SYSENT_FILE}
SRCS+= ${SYSENT_CONF}
# Ensure that the target gets updated if the capabilities file is modified,
# even though it is not an explicit input to makesyscalls.lua. For some
# targets, like Linux system calls, this is unnecessary, but a spurious rebuild
# is both rare and harmless.
SRCS+= ${CAPABILITIES_CONF}
MAKESYSCALLS_INTERP?= ${LUA}
MAKESYSCALLS_SCRIPT?= ${SYSDIR}/tools/makesyscalls.lua
MAKESYSCALLS= ${MAKESYSCALLS_INTERP} ${MAKESYSCALLS_SCRIPT}
all:
@echo "make sysent only"
# We .ORDER these explicitly so that we only run MAKESYSCALLS once, rather than
# potentially once for each ${GENERATED} file.
.ORDER: ${GENERATED}
sysent: ${GENERATED}
# We slap a .PHONY on makesyscalls.lua so that we regenerate every single time,
# for now, which can be less painful across rebases or other things that may
# have odd effects on mtimes.
${MAKESYSCALLS_SCRIPT}: .PHONY
${GENERATED}: ${MAKESYSCALLS_SCRIPT} ${SRCS}
${MAKESYSCALLS} ${SYSENT_FILE} ${SYSENT_CONF}