sys/conf/sysent.mk

   1 # $FreeBSD$
   2
   3 # Don't use an OBJDIR
   4 .OBJDIR: ${.CURDIR}
   5
   6 .include <bsd.sysdir.mk>
   7 .include <src.lua.mk>
   8
   9 COMMON_GENERATED=       proto.h         \
  10                         syscall.h       \
  11                         syscalls.c      \
  12                         sysent.c        \
  13                         systrace_args.c
  14
  15 GENERATED_PREFIX?=
  16 GENERATED?=     ${COMMON_GENERATED:S/^/${GENERATED_PREFIX}/}
  17 SYSENT_FILE?=   syscalls.master
  18 SYSENT_CONF?=   syscalls.conf
  19
  20 # Including Makefile should override SYSENT_FILE and SYSENT_CONF as needed,
  21 # and set GENERATED.
  22 SRCS+=  ${SYSENT_FILE}
  23 SRCS+=  ${SYSENT_CONF}
  24
  25 # Ensure that the target gets updated if the capabilities file is modified,
  26 # even though it is not an explicit input to makesyscalls.lua.  For some
  27 # targets, like Linux system calls, this is unnecessary, but a spurious rebuild
  28 # is both rare and harmless.
  29 CAPABILITIES_CONF?= ${SYSDIR}/kern/capabilities.conf
  30 SRCS+=  ${CAPABILITIES_CONF}
  31
  32 MAKESYSCALLS_INTERP?=   ${LUA}
  33 MAKESYSCALLS_SCRIPT?=   ${SYSDIR}/tools/makesyscalls.lua
  34 MAKESYSCALLS=   ${MAKESYSCALLS_INTERP} ${MAKESYSCALLS_SCRIPT}
  35
  36 all:
  37         @echo "make sysent only"
  38
  39 # We .ORDER these explicitly so that we only run MAKESYSCALLS once, rather than
  40 # potentially once for each ${GENERATED} file.
  41 .ORDER: ${GENERATED}
  42 sysent: ${GENERATED}
  43
  44 ${GENERATED}: ${MAKESYSCALLS_SCRIPT} ${SRCS}
  45         ${MAKESYSCALLS} ${SYSENT_FILE} ${SYSENT_CONF}