From b9cd412e7b33608c6e5dc4a507453b78fe42d99a Mon Sep 17 00:00:00 2001 From: Bryan Drewery Date: Wed, 24 Feb 2016 17:19:18 +0000 Subject: [PATCH] FAST_DEPEND: Always run depend via beforebuild which removes many hacks. This will generate dependencies rather than depending on the previous behavior of depending on the guessed OBJS: *.h dependecies or a user running 'make depend'. Experimentation showed that depending only on headers was not enough and prone to .ORDER errors. Downstream users may also have added dependencies into beforedepend or afterdepend targets. The safest way to ensure dependencies are generated before build is to run 'make depend' beforehand rather than just depending on DPSRCS+SRCS. Note that the OBJS_DEPEND_GUESS mechanism (a.k.a .if !exists(.depend) then foo.o: *.h) is still useful as it improves incremental builds with missing .depend.* files and allows 'make foo.o' to usually work, while this 'beforebuild: depend' ensures that the build will always find all dependencies. The 'make foo.o' case has no means of a 'beforebuild' hook. This also removes several hacks in the DIRDEPS_BUILD: - NO_INSTALL_INCLUDES is no longer needed as it mostly was to work around .ORDER problems with building the needed headers early. - DIRDEPS_BUILD: It is no longer necesarry to track "local dependencies" in Makefile.depend. These were only in Makefile.depend for 'clean builds' since nothing would generate the files due to skipping 'make depend' and early dependency bugs that have been fixed, such as adding headers into SRCS for the OBJS_DEPEND_GUESS mechanism. Normally if a .depend file does not exist then a dependency is added by bsd.lib.mk/bsd.prog.mk from OBJS: *.h. However, meta.autodep.mk creates a .depend file from created meta files and inserts that into Makefile.depend. It also only tracks *.[ch] files though which can miss some dependencies that are hooked into 'make depend'. This .depend that is created then breaks incremental builds due to the !exists(.depend) checks for OBJS_DEPEND_GUESS. The goal was to skip 'make depend' yet it only really works the first time. After that files are not generated as expected, which r288966 tried to address but was using buildfiles: rather than beforebuild: and was reverted in r291725. As noted previously, depending only on headers in beforebuild: would create .ORDER errors in some cases. meta.autodep.mk is still used to generate Makefile.depend though via: gendirdeps: Makefile.depend .END: gendirdeps This commit allows removing all of the "local dependencies" in Makefile.depend which cuts down on churn and removes some of the arch-dependent Makefile.depend files. The "local dependencies" were also problematic for bootstrapping. Sponsored by: EMC / Isilon Storage Division --- kerberos5/lib/libasn1/Makefile | 5 ----- kerberos5/lib/libhdb/Makefile | 5 ----- kerberos5/lib/libheimntlm/Makefile | 2 +- kerberos5/lib/libhx509/Makefile | 5 ----- lib/clang/clang.build.mk | 4 ---- share/mk/bsd.dep.mk | 9 +++++++++ sys/conf/kern.post.mk | 6 ++++++ 7 files changed, 16 insertions(+), 20 deletions(-) diff --git a/kerberos5/lib/libasn1/Makefile b/kerberos5/lib/libasn1/Makefile index 177de85c1ed5..349a8f755d91 100644 --- a/kerberos5/lib/libasn1/Makefile +++ b/kerberos5/lib/libasn1/Makefile @@ -116,11 +116,6 @@ ${GEN_KX509}: kx509.asn1 .hx.h: ${CP} ${.IMPSRC} ${.TARGET} -# This makefile generates a lot of its headers -# so tell bsd.sys.mk not to try and stage them before they are built. -# Note: this is rare -NO_BEFOREBUILD_INCLUDES= - .include .SUFFIXES: .h .c .x .hx diff --git a/kerberos5/lib/libhdb/Makefile b/kerberos5/lib/libhdb/Makefile index 2c5ffe45111d..5f60c6023807 100644 --- a/kerberos5/lib/libhdb/Makefile +++ b/kerberos5/lib/libhdb/Makefile @@ -97,11 +97,6 @@ ${GEN}: hdb.asn1 .hx.h: ${CP} ${.IMPSRC} ${.TARGET} -# This makefile generates a lot of its headers -# so tell bsd.sys.mk not to try and stage them before they are built. -# Note: this is rare -NO_BEFOREBUILD_INCLUDES= - .include .SUFFIXES: .h .c .x .hx diff --git a/kerberos5/lib/libheimntlm/Makefile b/kerberos5/lib/libheimntlm/Makefile index d35fc38accae..bcb45f3b8f0c 100644 --- a/kerberos5/lib/libheimntlm/Makefile +++ b/kerberos5/lib/libheimntlm/Makefile @@ -3,7 +3,7 @@ LIB= heimntlm LDFLAGS= -Wl,--no-undefined LIBADD= crypto com_err krb5 roken -SRCS= ntlm.c ntlm_err.c +SRCS= ntlm.c ntlm_err.c ntlm_err.h INCS= heimntlm.h heimntlm-protos.h ntlm_err.h CFLAGS+=-I${KRB5DIR}/lib/ntlm -I${KRB5DIR}/lib/roken VERSION_MAP= ${KRB5DIR}/lib/ntlm/version-script.map diff --git a/kerberos5/lib/libhx509/Makefile b/kerberos5/lib/libhx509/Makefile index d7bedfc68828..2e8564b023e7 100644 --- a/kerberos5/lib/libhx509/Makefile +++ b/kerberos5/lib/libhx509/Makefile @@ -290,11 +290,6 @@ ${GEN_CRMF}: crmf.asn1 .hx.h: ${CP} ${.IMPSRC} ${.TARGET} -# This makefile generates a lot of its headers -# so tell bsd.sys.mk not to try and stage them before they are built. -# Note: this is rare -NO_BEFOREBUILD_INCLUDES= - .include .SUFFIXES: .h .c .x .hx diff --git a/lib/clang/clang.build.mk b/lib/clang/clang.build.mk index e90bd3f80648..62cdb81dcba0 100644 --- a/lib/clang/clang.build.mk +++ b/lib/clang/clang.build.mk @@ -237,7 +237,3 @@ Checkers.inc.h: ${CLANG_SRCS}/lib/StaticAnalyzer/Checkers/Checkers.td SRCS+= ${TGHDRS:C/$/.inc.h/} CLEANFILES+= ${TGHDRS:C/$/.inc.h/} ${TGHDRS:C/$/.inc.d/} - -# if we are not doing explicit 'make depend', there is -# nothing to cause these to be generated. -beforebuild: ${SRCS:M*.inc.h} diff --git a/share/mk/bsd.dep.mk b/share/mk/bsd.dep.mk index 78b2efbb482a..770ef681a589 100644 --- a/share/mk/bsd.dep.mk +++ b/share/mk/bsd.dep.mk @@ -209,6 +209,8 @@ CFLAGS+= ${DEPEND_CFLAGS} .endif # defined(SRCS) .if ${MK_DIRDEPS_BUILD} == "yes" +# Prevent meta.autodep.mk from tracking "local dependencies". +.depend: .include # If using filemon then _EXTRADEPEND is skipped since it is not needed. .if empty(.MAKE.MODE:Mnofilemon) @@ -231,7 +233,14 @@ ${__obj}: ${OBJS_DEPEND_GUESS} ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}} .endif .endfor + +# Always run 'make depend' to generate dependencies early and to avoid the +# need for manually running it. The dirdeps build should only do this in +# sub-makes though since MAKELEVEL0 is for dirdeps calculations. +.if ${MK_DIRDEPS_BUILD} == "no" || ${.MAKE.LEVEL} > 0 +beforebuild: depend .endif +.endif # ${MK_FAST_DEPEND} == "yes" .if !target(depend) .if defined(SRCS) diff --git a/sys/conf/kern.post.mk b/sys/conf/kern.post.mk index 082007a06a9f..ff8fad0b46db 100644 --- a/sys/conf/kern.post.mk +++ b/sys/conf/kern.post.mk @@ -251,6 +251,12 @@ CFLAGS+= ${DEPEND_CFLAGS} .endfor .endif # !defined(_SKIP_READ_DEPEND) .endif # !defined(_meta_filemon) + +# Always run 'make depend' to generate dependencies early and to avoid the +# need for manually running it. For the kernel this is mostly a NOP since +# all dependencies are correctly added or accounted for. This is mostly to +# ensure downstream uses of kernel-depend are handled. +beforebuild: kernel-depend .endif # ${MK_FAST_DEPEND} == "yes" # Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet.