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freebsd-skq/sys/conf/kern.post.mk

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Moved $FreeBSD$ to the beginning of the file. Improved wording in a nearby comment.
2003-11-14 23:09:38 +00:00
# $FreeBSD$
# Part of a unified Makefile for building kernels. This part includes all
# the definitions that need to be after all the % directives except %RULES
# and ones that act like they are part of %RULES.
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
#
Move initialization of the MKMODULESENV envorinoment to kern.pre.mk from kern.post.mk so port makefiles can augment it. Submitted by: nyan
2002-01-05 06:21:06 +00:00
# Most make variables should not be defined in this file. Instead, they
# should be defined in the kern.pre.mk so that port makefiles can
s/oferride/override/ submitted by: dima
2002-01-06 20:33:55 +00:00
# override or augment them.
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
If DESTDIR was specified as a makeoption in the kernelconfig file we want to pass it on to the modules build so we don't install the kernel under DESTDIR and the modules in /boot.
2003-05-31 21:16:12 +00:00
# In case the config had a makeoptions DESTDIR...
.if defined(DESTDIR)
MKMODULESENV+= DESTDIR="${DESTDIR}"
.endif
WITH_META_MODE: Resolve SYSDIR to avoid changed build commands. Sponsored by: EMC / Isilon Storage Division
2016-05-31 23:08:43 +00:00
SYSDIR?= ${S:C;^[^/];${.CURDIR}/&;:tA}
Always compute the root of the kernel source tree and explicitly pass it to module builds. This avoids having to have the module builds walk up the tree to find the kernel sources. It also allows a kernel + module build to succeed when a new level of module subdirectories is added without requiring that the /usr/share/mk/bsd.kmod.mk file on the machine be patched. MFC after: 1 week
2009-05-04 20:25:56 +00:00
MKMODULESENV+= KERNBUILDDIR="${.CURDIR}" SYSDIR="${SYSDIR}"
If DESTDIR was specified as a makeoption in the kernelconfig file we want to pass it on to the modules build so we don't install the kernel under DESTDIR and the modules in /boot.
2003-05-31 21:16:12 +00:00
Propagate CONF_CFLAGS (from makeoptions) to the module build too. Discussed with: jhb (on arch@)
2010-03-25 13:47:21 +00:00
.if defined(CONF_CFLAGS)
MKMODULESENV+= CONF_CFLAGS="${CONF_CFLAGS}"
.endif
WITH_CTF can now be specified in src.conf (not recommended, there are some problems with static executables), make.conf (would also affect ports which do not use GNU make and do not override the compile targets) or in the kernel config (via "makeoptions WITH_CTF=yes"). Additional (related) changes: - propagate WITH_CTF to module builds - do not add -g to the linker flags, it's a noop there anyway (at least according to the man page of ld) - do not add -g to CFLAGS unconditionally we need to have a look if it is really needed (IMO not) or if there is a way to add it only when WITH_CTF is used Note: ctfconvert / ctfmerge lines will not appear in the build output, to protect the innocent (those which do not build with WITH_CTF would see the shell-test and may think WITH_CTF is used). Reviewed by: imp, jhb, scottl (earlier version) Discussed on: arch@
2010-04-02 06:55:31 +00:00
.if defined(WITH_CTF)
MKMODULESENV+= WITH_CTF="${WITH_CTF}"
.endif
Change the default build behavior so we don't compile extra TCP modules by default. At least initially, the feature to support multiple TCP stacks is aimed at supporting advanced use cases and TCP development, but it is not necessarily aimed at a wide audience. Therefore, there is no need to build and install the extra TCP stacks by default. Instead, the people who are using or developing this functionality can add the extra option to build/ install the extra TCP stacks. However, we do want to build the extra TCP stacks as part of test builds (e.g. LINT or tinderbox) to ensure that developers who are testing their changes will know that their changes do not break the additional TCP stack modules. After this change, a user will need to add WITH_EXTRA_TCP_STACKS=1 to make.conf or the kernel config in order to build the extra TCP modules. Differential Revision: https://reviews.freebsd.org/D6795 Reviewed by: sjg Approved by: re (kib)
2016-06-10 19:06:11 +00:00
.if defined(WITH_EXTRA_TCP_STACKS)
MKMODULESENV+= WITH_EXTRA_TCP_STACKS="${WITH_EXTRA_TCP_STACKS}"
.endif
Install kernel debug data under /usr/lib/debug This avoids needing a large boot partition / file system in order to accommodate multiple kernels, and provides consistency with userland debug. This also simplifies the process of moving kernel debug files to a separate package and installing them on demand. In addition, change kernel debug file extension to .debug, to match userland debug files. When using the supported kernel installation method the /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) as is done with /boot/kernel. Developers wishing to maintain the historical behavior of installing debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). Reviewed by: bdrewery, brooks, imp, markj Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1006
2015-09-24 16:55:22 +00:00
# Allow overriding the kernel debug directory, so kernel and user debug may be
# installed in different directories. Setting it to "" restores the historical
# behavior of installing debug files in the kernel directory.
KERN_DEBUGDIR?= ${DEBUGDIR}
Overhaul the targets and hope this is now much more readable. This adds some orthodox kernel-* and modules-* targets and retires harmful ``clobber''. Now, do we really want to keep the ``modules'' target here?
2003-02-21 11:02:49 +00:00
.MAIN: all
Leave the `clobber' target alone, it clobbers too much (including the generated Makefile) to be useful as the cleandir replacement. Reported by: des
2003-03-03 09:35:44 +00:00
.for target in all clean cleandepend cleandir clobber depend install \
Support skipping 'make obj' tree-walk. This is part of a larger effort for WITH_AUTO_OBJ and a WORLDFAST option. Sponsored by: Dell EMC Isilon
2017-05-09 20:21:38 +00:00
${_obj} reinstall tags
Overhaul the targets and hope this is now much more readable. This adds some orthodox kernel-* and modules-* targets and retires harmful ``clobber''. Now, do we really want to keep the ``modules'' target here?
2003-02-21 11:02:49 +00:00
${target}: kernel-${target}
.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
${target}: modules-${target}
modules-${target}:
Leave the `clobber' target alone, it clobbers too much (including the generated Makefile) to be useful as the cleandir replacement. Reported by: des
2003-03-03 09:35:44 +00:00
cd $S/modules; ${MKMODULESENV} ${MAKE} \
${target:S/^reinstall$/install/:S/^clobber$/cleandir/}
Overhaul the targets and hope this is now much more readable. This adds some orthodox kernel-* and modules-* targets and retires harmful ``clobber''. Now, do we really want to keep the ``modules'' target here?
2003-02-21 11:02:49 +00:00
.endif
.endfor
Improve the functionality of the PORTS_MODULES knob by adding LOCALBASE/bin and sbin to PATH, allowing dependencies to be found; adding SRC_BASE and OSVERSION to match the new kernel, and putting the related builds under MAKEOBJDIRPREFIX so that they only need to be built once per kernel. In addition to the PR this includes ideas/contributions from crees and matthew. PR: ports/161452 Submitted by: Garrett Cooper <yanegomi@gmail.com>
2012-06-14 19:30:31 +00:00
# Handle ports (as defined by the user) that build kernel modules
Don't build PORTS_MODULES if NO_MODULES is defined
2005-06-09 05:38:18 +00:00
.if !defined(NO_MODULES) && defined(PORTS_MODULES)
Improve the functionality of the PORTS_MODULES knob by adding LOCALBASE/bin and sbin to PATH, allowing dependencies to be found; adding SRC_BASE and OSVERSION to match the new kernel, and putting the related builds under MAKEOBJDIRPREFIX so that they only need to be built once per kernel. In addition to the PR this includes ideas/contributions from crees and matthew. PR: ports/161452 Submitted by: Garrett Cooper <yanegomi@gmail.com>
2012-06-14 19:30:31 +00:00
#
# The ports tree needs some environment variables defined to match the new kernel
#
# Ports search for some dependencies in PATH, so add the location of the installed files
LOCALBASE?= /usr/local
# SRC_BASE is how the ports tree refers to the location of the base source files
.if !defined(SRC_BASE)
Use built-in :tA here rather than realpath(1). Sponsored by: EMC / Isilon Storage Division
2016-02-16 02:14:12 +00:00
SRC_BASE= ${SYSDIR:H:tA}
Improve the functionality of the PORTS_MODULES knob by adding LOCALBASE/bin and sbin to PATH, allowing dependencies to be found; adding SRC_BASE and OSVERSION to match the new kernel, and putting the related builds under MAKEOBJDIRPREFIX so that they only need to be built once per kernel. In addition to the PR this includes ideas/contributions from crees and matthew. PR: ports/161452 Submitted by: Garrett Cooper <yanegomi@gmail.com>
2012-06-14 19:30:31 +00:00
.endif
# OSVERSION is used by some ports to determine build options
.if !defined(OSRELDATE)
# Definition copied from src/Makefile.inc1
OSRELDATE!= awk '/^\#define[[:space:]]*__FreeBSD_version/ { print $$3 }' \
${MAKEOBJDIRPREFIX}${SRC_BASE}/include/osreldate.h
.endif
# Keep the related ports builds in the obj directory so that they are only rebuilt once per kernel build
Use ${.OBJDIR} to refer to the kernel build object dir, instead of trying to recreate it from ${MAKEOBJDIRPREFIX} and ${SRC_BASE} and ${KERNCONF}, the latter being especially problematic when KERNCONF is set to the names of multiple kernel configs.
2016-12-22 21:11:42 +00:00
WRKDIRPREFIX?= ${.OBJDIR}
Improve the functionality of the PORTS_MODULES knob by adding LOCALBASE/bin and sbin to PATH, allowing dependencies to be found; adding SRC_BASE and OSVERSION to match the new kernel, and putting the related builds under MAKEOBJDIRPREFIX so that they only need to be built once per kernel. In addition to the PR this includes ideas/contributions from crees and matthew. PR: ports/161452 Submitted by: Garrett Cooper <yanegomi@gmail.com>
2012-06-14 19:30:31 +00:00
PORTSMODULESENV=\
PORTS_MODULES: Don't leak in CC/CXX/CPP. These may have ccache in them or -target/--sysroot from external compiler or SYSTEM_COMPILER support. Many ports do not support a CC with spaces in it, such as emulators/virtualbox-ose-kmod. Passing --sysroot to ports makes no sense as ports doesn't support --sysroot currently. If these variables need to be overridden for ports then they can be set in make.conf or passed as make arguments. MFC after: 1 week Sponsored by: EMC / Isilon Storage Division
2016-08-12 11:06:54 +00:00
env \
-u CC \
-u CXX \
-u CPP \
Improve the functionality of the PORTS_MODULES knob by adding LOCALBASE/bin and sbin to PATH, allowing dependencies to be found; adding SRC_BASE and OSVERSION to match the new kernel, and putting the related builds under MAKEOBJDIRPREFIX so that they only need to be built once per kernel. In addition to the PR this includes ideas/contributions from crees and matthew. PR: ports/161452 Submitted by: Garrett Cooper <yanegomi@gmail.com>
2012-06-14 19:30:31 +00:00
PATH=${PATH}:${LOCALBASE}/bin:${LOCALBASE}/sbin \
SRC_BASE=${SRC_BASE} \
OSVERSION=${OSRELDATE} \
WRKDIRPREFIX=${WRKDIRPREFIX}
Unfortunately the change in r237958 resulted in s/install/instclean/ due to the aggressive pattern matching of the :C modifier. I tested build and install in 2 phases, however with different solutions, resulting in the breakage. Mea culpa. The solution is to break out the all: target. This causes a few lines of code duplication, but now the all: target works as it should, and the other targets continue to work as they did before. While I'm here, add a ===> header line to the start of each port build to make it easier to find/more clear in the logs.
2012-07-02 22:14:58 +00:00
# The WRKDIR needs to be cleaned before building, and trying to change the target
# with a :C pattern below results in install -> instclean
all:
.for __i in ${PORTS_MODULES}
@${ECHO} "===> Ports module ${__i} (all)"
Use "build" instead of "all" when building ports modules "all" in ports currently means "stage the ports", which requires root today, and brings to light other potential issues, like ENAMETOOLONG with staged directories (bug 161481, etc). This fixes buildkernel for me when run as a non-root user, assuming all of the prerequisites have been installed beforehand and are up-to-date. MFC after: 1 month Discussed with: swills (IRC) Sponsored by: Dell EMC Isilon
2017-02-28 04:48:30 +00:00
cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B clean build
Unfortunately the change in r237958 resulted in s/install/instclean/ due to the aggressive pattern matching of the :C modifier. I tested build and install in 2 phases, however with different solutions, resulting in the breakage. Mea culpa. The solution is to break out the all: target. This causes a few lines of code duplication, but now the all: target works as it should, and the other targets continue to work as they did before. While I'm here, add a ===> header line to the start of each port build to make it easier to find/more clear in the logs.
2012-07-02 22:14:58 +00:00
.endfor
.for __target in install reinstall clean
Get SYSDIR set correctly for building ports. On install, do deinstall reinstall
2005-02-25 05:34:45 +00:00
${__target}: ports-${__target}
use __target in preference to target
2005-02-25 02:25:38 +00:00
ports-${__target}:
PORTS_MODULES: a list of ports to build with this kernel. # I directly use the targets for building this, but it was suggested # to use portupgrade. I couldn't fit that into the target model, so I # punted.
2004-11-11 23:58:14 +00:00
.for __i in ${PORTS_MODULES}
Unfortunately the change in r237958 resulted in s/install/instclean/ due to the aggressive pattern matching of the :C modifier. I tested build and install in 2 phases, however with different solutions, resulting in the breakage. Mea culpa. The solution is to break out the all: target. This causes a few lines of code duplication, but now the all: target works as it should, and the other targets continue to work as they did before. While I'm here, add a ===> header line to the start of each port build to make it easier to find/more clear in the logs.
2012-07-02 22:14:58 +00:00
@${ECHO} "===> Ports module ${__i} (${__target})"
cd $${PORTSDIR:-/usr/ports}/${__i}; ${PORTSMODULESENV} ${MAKE} -B ${__target:C/install/deinstall reinstall/:C/reinstall/deinstall reinstall/}
PORTS_MODULES: a list of ports to build with this kernel. # I directly use the targets for building this, but it was suggested # to use portupgrade. I couldn't fit that into the target model, so I # punted.
2004-11-11 23:58:14 +00:00
.endfor
.endfor
.endif
Overhaul the targets and hope this is now much more readable. This adds some orthodox kernel-* and modules-* targets and retires harmful ``clobber''. Now, do we really want to keep the ``modules'' target here?
2003-02-21 11:02:49 +00:00
.ORDER: kernel-install modules-install
Support beforebuild in the kernel. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:02 +00:00
beforebuild: .PHONY
kernel-all: beforebuild .WAIT ${KERNEL_KO} ${KERNEL_EXTRA}
Overhaul the targets and hope this is now much more readable. This adds some orthodox kernel-* and modules-* targets and retires harmful ``clobber''. Now, do we really want to keep the ``modules'' target here?
2003-02-21 11:02:49 +00:00
Remove .depend when doing "make cleandir".
2006-02-07 13:37:26 +00:00
kernel-cleandir: kernel-clean kernel-cleandepend
Leave the `clobber' target alone, it clobbers too much (including the generated Makefile) to be useful as the cleandir replacement. Reported by: des
2003-03-03 09:35:44 +00:00
kernel-clobber:
Abuse `cleandir' for what `clobber' was supposed to do, for peter.
2003-03-02 21:25:00 +00:00
find . -maxdepth 1 ! -type d ! -name version -delete
kernel-obj:
Overhaul the targets and hope this is now much more readable. This adds some orthodox kernel-* and modules-* targets and retires harmful ``clobber''. Now, do we really want to keep the ``modules'' target here?
2003-02-21 11:02:49 +00:00
.if !defined(MODULES_WITH_WORLD) && !defined(NO_MODULES) && exists($S/modules)
modules: modules-all
.if !defined(NO_MODULES_OBJ)
modules-all modules-depend: modules-obj
.endif
.endif
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Back out most of 1.84. It was unwise to force debug kernels to always be installed. It should have been optional to install a non-debug one, just like it was formerly optional to install a debug one. In order to do that, most of 1.84 had to go. Instead, make installing the debug kernel the default, but create a new option INSTALL_NODEBUG for those people that have small / partitions and good source control habits. This preserves the behavior of 1.84 while allowing it to be overriden for people (like me) that do not have the time to upgrade to get a bigger / and also don't have time for stupid makefile tricks when upgrading their older system, but still want a kernel.debug around if things go south.
2005-10-24 23:54:39 +00:00
.if !defined(DEBUG)
FULLKERNEL= ${KERNEL_KO}
.else
Install kernel debug data under /usr/lib/debug This avoids needing a large boot partition / file system in order to accommodate multiple kernels, and provides consistency with userland debug. This also simplifies the process of moving kernel debug files to a separate package and installing them on demand. In addition, change kernel debug file extension to .debug, to match userland debug files. When using the supported kernel installation method the /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) as is done with /boot/kernel. Developers wishing to maintain the historical behavior of installing debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). Reviewed by: bdrewery, brooks, imp, markj Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1006
2015-09-24 16:55:22 +00:00
FULLKERNEL= ${KERNEL_KO}.full
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
${KERNEL_KO}: ${FULLKERNEL} ${KERNEL_KO}.debug
Install kernel debug data under /usr/lib/debug This avoids needing a large boot partition / file system in order to accommodate multiple kernels, and provides consistency with userland debug. This also simplifies the process of moving kernel debug files to a separate package and installing them on demand. In addition, change kernel debug file extension to .debug, to match userland debug files. When using the supported kernel installation method the /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) as is done with /boot/kernel. Developers wishing to maintain the historical behavior of installing debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). Reviewed by: bdrewery, brooks, imp, markj Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1006
2015-09-24 16:55:22 +00:00
${OBJCOPY} --strip-debug --add-gnu-debuglink=${KERNEL_KO}.debug \
Installing debug modules was a bad idea -- I bogusly assumed that our kernel linker will only load PT_LOAD segments, apparently not. Instead, produce .dbg objects from .debug objects, and install them together with non-debug objects, as described in objcopy(1). Original code by: obrien
2005-10-27 14:24:45 +00:00
${FULLKERNEL} ${.TARGET}
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
${KERNEL_KO}.debug: ${FULLKERNEL}
Installing debug modules was a bad idea -- I bogusly assumed that our kernel linker will only load PT_LOAD segments, apparently not. Instead, produce .dbg objects from .debug objects, and install them together with non-debug objects, as described in objcopy(1). Original code by: obrien
2005-10-27 14:24:45 +00:00
${OBJCOPY} --only-keep-debug ${FULLKERNEL} ${.TARGET}
Refactor (some more) installation of kernel and module objects. Try to make everyone happy: David (to have debug kernels installed by default), Warner (to be able to override that), and myself (for actually making it all work and to be consistent). Now, if kernel was configured for debugging (through DEBUG=-g in the kernel config file or "config -g"), doing "make install" will install debug versions of kernel and module objects with their canonical names, kernel.debug -> /boot/kernel/kernel if_fxp.ko.debug -> /boot/kernel/if_fxp.ko Installing a kernel not configured for debugging, or debug kernel with INSTALL_NODEBUG variable defined, will install non-debug kernel and module objects. Also, restore the install.debug and reinstall.debug targets that are part of the existing API (they cause some additional gdb(1) scripts to be installed).
2005-10-25 09:05:07 +00:00
install.debug reinstall.debug: gdbinit
cd ${.CURDIR}; ${MAKE} ${.TARGET:R}
If we're building a debug kernel, add target to install the .gdbinit files from tools/debugscripts.
2003-06-12 08:09:48 +00:00
Fixed some style bugs (manly a few English usage errors in comments and many unusual indentations for continued lines in code).
2003-12-29 11:28:21 +00:00
# Install gdbinit files for kernel debugging.
If we're building a debug kernel, add target to install the .gdbinit files from tools/debugscripts.
2003-06-12 08:09:48 +00:00
gdbinit:
Fixed some style bugs (manly a few English usage errors in comments and many unusual indentations for continued lines in code).
2003-12-29 11:28:21 +00:00
grep -v '# XXX' ${S}/../tools/debugscripts/dot.gdbinit | \
sed "s:MODPATH:${.OBJDIR}/modules:" > .gdbinit
Per recent HEADSUP: Disconnect (old)vinum from the kernel build. Users should move to the new geom_vinum implementation instead. The refcount logic which is being added to devices to enable safe module unloading and the buf/vm work also in progress would require a major rework of the (old)-vinum code to comply with the new semantics. The actual source files will not be removed until I have coordinated with the geomvinum people if they need any bits repo-copied etc.
2004-09-23 08:34:50 +00:00
cp ${S}/../tools/debugscripts/gdbinit.kernel ${.CURDIR}
MFtbemd: Prefer MACHNE_CPUARCH to MACHINE_ARCH in most contexts where you want to test of all the CPUs of a given family conform.
2010-08-23 22:24:11 +00:00
.if exists(${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH})
cp ${S}/../tools/debugscripts/gdbinit.${MACHINE_CPUARCH} \
Fixed some style bugs (manly a few English usage errors in comments and many unusual indentations for continued lines in code).
2003-12-29 11:28:21 +00:00
${.CURDIR}/gdbinit.machine
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
.endif
The gdbinit.${MACHINE_ARCH} script may not exist.
2004-01-21 08:23:46 +00:00
.endif
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
${FULLKERNEL}: ${SYSTEM_DEP} vers.o
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
@rm -f ${.TARGET}
@echo linking ${.TARGET}
${SYSTEM_LD}
Fix MFS builds when both MD_ROOT_SIZE and MFS_IMAGE are specified MD_ROOT_SIZE and embed_mfs.sh were basically retired as part of https://reviews.freebsd.org/D2903 . However, when building a kernel with 'options MD_ROOT_SIZE' specified, this results in a non-working MFS, as within sys/dev/md/md.c we fall within the wrong # ifdef. This patch implements the following: * Allow kernels to be built without the MD_ROOT_SIZE option, which results in a kernel built as per D2903. * Allow kernels to be built with the MD_ROOT_SIZE option, which results in a kernel built similarly to the pre-D2903 way, with the following differences: * The MFS is now put in a separate section within the kernel (oldmfs, so it differs from the mfs section introduced by D2903). * embed_mfs.sh is changed, so it looks up the oldmfs section within the kernel, gets its size and offset, sees if the MFS will fit within the allocated oldmfs section and only if all is well does a dd of the MFS image into the kernel. Submitted by: Stanislav Galabov <sgalabov@gmail.com> Reviewed by: brooks, imp Differential Revision: https://reviews.freebsd.org/D5093
2016-02-02 07:02:51 +00:00
.if !empty(MD_ROOT_SIZE_CONFIGURED) && defined(MFS_IMAGE)
@sh ${S}/tools/embed_mfs.sh ${.TARGET} ${MFS_IMAGE}
.endif
- CTF knob is now implemented using common scheme: MK_CTF=yes/no is defined based on WITH/WITHOUT_CTF settings, default is WITHOUT_CTF, NO_CTF overrides WITH_CTF (used by Makefile.inc1) - CTFCONVERT_CMD/NORMAL_CTFCONVERT are now defined to empty string if make(1) can handle empty commands
2011-11-30 18:11:49 +00:00
.if ${MK_CTF} != "no"
Truncate the ctfmerge command line, like we do with SYSTEM_LD.
2014-08-12 23:48:37 +00:00
@echo ${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ...
@${CTFMERGE} ${CTFFLAGS} -o ${.TARGET} ${SYSTEM_OBJS} vers.o
Conditionalize ctfconvert/ctfmerge runs on make level (.if/.endif) instead of executing a shell on every object or executable/library file. This shaves off more than 30,000 shell invocations during buildworld.
2011-11-29 08:38:47 +00:00
.endif
Merged from kmod.mk,v 1.152: strip debugging symbols even when not configured for debugging. This saves some bytes, and produces the same "kernel" object as if it was configured for debugging.
2004-02-13 13:21:41 +00:00
.if !defined(DEBUG)
${OBJCOPY} --strip-debug ${.TARGET}
.endif
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
${SYSTEM_LD_TAIL}
FAST_DEPEND: Rework how guessed dependencies are handled. Rather than depend on .depend not existing, check the actual .depend.OBJ file that will be used for that object. If it doesn't exist then use the guessed dependencies. FAST_DEPEND may never have a .depend file. Not having one means all of the previous logic would over-depend all object files on all headers which is not what we wanted. It also means that if a .depend is generated before a build is done for _EXTRADEPEND (such as for PROG or LIB) then all of these dependencies would not be used since the .depend wasn't generated from mkdep and the real .depend.* files are not generated until the build. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:05 +00:00
OBJS_DEPEND_GUESS+= assym.s vnode_if.h ${BEFORE_DEPEND:M*.h} \
${MFILES:T:S/.m$/.h/}
Some glue to allow lint(1) to work on the kernel. This is not complete without some config(8) work. Config(8) needs to provide some ${NORMAL_LINT} rules to make foo.ln files.
2003-06-14 17:28:13 +00:00
LNFILES= ${CFILES:T:S/.c$/.ln/}
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
.for mfile in ${MFILES}
Added rules to generate .c files from .m files. Run mkdep on these .c files. This fixes at least "make" (without -j) after "make clean".
2002-08-19 01:00:37 +00:00
# XXX the low quality .m.o rules gnerated by config are normally used
# instead of the .m.c rules here.
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
${mfile:T:S/.m$/.c/}: ${mfile}
Added rules to generate .c files from .m files. Run mkdep on these .c files. This fixes at least "make" (without -j) after "make clean".
2002-08-19 01:00:37 +00:00
${AWK} -f $S/tools/makeobjops.awk ${mfile} -c
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
${mfile:T:S/.m$/.h/}: ${mfile}
Use makeobjops.awk rather than makeobjops.pl. (with big thanks to Oliver Fromme <olli@fromme.com>)
2002-05-01 03:28:14 +00:00
${AWK} -f $S/tools/makeobjops.awk ${mfile} -h
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
.endfor
kernel-clean:
When MAKEOBJDIRPREFIX points to a case-insensitive file system, the build can break when different source files create the same target files (case-insensitivity speaking). This is the case for object files compiled with -fpic and shared libraries. The former uses an extension of ".So", and the latter an extension ".so". Rename shared object files from *.So to *.pico to match what NetBSD does. See also r305855 MFC after: 1 month Sponsored by: Bracket Computing Differential Revision: https://reviews.freebsd.org/D7906
2016-09-24 15:11:27 +00:00
rm -f *.o *.so *.pico *.ko *.s eddep errs \
Install kernel debug data under /usr/lib/debug This avoids needing a large boot partition / file system in order to accommodate multiple kernels, and provides consistency with userland debug. This also simplifies the process of moving kernel debug files to a separate package and installing them on demand. In addition, change kernel debug file extension to .debug, to match userland debug files. When using the supported kernel installation method the /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) as is done with /boot/kernel. Developers wishing to maintain the historical behavior of installing debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). Reviewed by: bdrewery, brooks, imp, markj Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1006
2015-09-24 16:55:22 +00:00
${FULLKERNEL} ${KERNEL_KO} ${KERNEL_KO}.debug \
Remove the links: target. It too is homelessly outdated since it relies on the outdated defines list. It likely hasn't been useful in 15 years, and certainly not in the last decade.
2012-10-25 04:55:04 +00:00
linterrs tags vers.c \
Clean all generated vnode_if* files.
2005-04-22 19:58:22 +00:00
vnode_if.c vnode_if.h vnode_if_newproto.h vnode_if_typedef.h \
Fixed some style bugs (manly a few English usage errors in comments and many unusual indentations for continued lines in code).
2003-12-29 11:28:21 +00:00
${MFILES:T:S/.m$/.c/} ${MFILES:T:S/.m$/.h/} \
- Remove include links only when .depend is also removed, so that "make depend; make clean; make -n" works. - Preseve kernel's .depend if it already exists and its creation is interrupted. Reported/reviewed by: bde
2006-10-13 22:28:14 +00:00
${CLEAN}
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Some glue to allow lint(1) to work on the kernel. This is not complete without some config(8) work. Config(8) needs to provide some ${NORMAL_LINT} rules to make foo.ln files.
2003-06-14 17:28:13 +00:00
lint: ${LNFILES}
Fixed some style bugs (manly a few English usage errors in comments and many unusual indentations for continued lines in code).
2003-12-29 11:28:21 +00:00
${LINT} ${LINTKERNFLAGS} ${CFLAGS:M-[DILU]*} ${.ALLSRC} 2>&1 | \
tee -a linterrs
Allow "make lint" to mostly work. Our sources are very unclean WRT lint, so this is turned off by default. Setting WANT_LINT will turn on generation of lint libraries for /usr/libdata/lint/*.ln. Reviewd by: silence in -audit.
2002-03-17 10:05:57 +00:00
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
# This is a hack. BFD "optimizes" away dynamic mode if there are no
# dynamic references. We could probably do a '-Bforcedynamic' mode like
# in the a.out ld. For now, this works.
HACK_EXTRA_FLAGS?= -shared
When MAKEOBJDIRPREFIX points to a case-insensitive file system, the build can break when different source files create the same target files (case-insensitivity speaking). This is the case for object files compiled with -fpic and shared libraries. The former uses an extension of ".So", and the latter an extension ".so". Rename shared object files from *.So to *.pico to match what NetBSD does. See also r305855 MFC after: 1 month Sponsored by: Bracket Computing Differential Revision: https://reviews.freebsd.org/D7906
2016-09-24 15:11:27 +00:00
hack.pico: Makefile
Don't use touch when what is really meant is :> (create an empty file, or truncate it if it exists) or :>> (ensure the file exists, but don't change it if it already does) Reviewed by: ru MFC after: 2 weeks
2006-08-14 13:28:53 +00:00
:> hack.c
When MAKEOBJDIRPREFIX points to a case-insensitive file system, the build can break when different source files create the same target files (case-insensitivity speaking). This is the case for object files compiled with -fpic and shared libraries. The former uses an extension of ".So", and the latter an extension ".so". Rename shared object files from *.So to *.pico to match what NetBSD does. See also r305855 MFC after: 1 month Sponsored by: Bracket Computing Differential Revision: https://reviews.freebsd.org/D7906
2016-09-24 15:11:27 +00:00
${CC} ${HACK_EXTRA_FLAGS} -nostdlib hack.c -o hack.pico
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
rm -f hack.c
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
assym.s: $S/kern/genassym.sh genassym.o
sys/conf: pass NMFLAGS to nm(1) via genassym.sh.
2015-08-14 22:58:32 +00:00
NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET}
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
genassym.o: $S/$M/$M/genassym.c
Exclude -flto when building *genassym.o The build process generates *assym.h using nm from *genassym.o (which is in turn created from *genassym.c). When compiling with link-time optimization (LTO) using -flto, .o files are LLVM bitcode, not ELF objects. This is not usable by genassym.sh, so remove -flto from those ${CC} invocations. Submitted by: George Rimar Reviewed by: dim MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D9659
2017-02-21 18:59:17 +00:00
${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
META_MODE: Don't generate or read _EXTRADEPEND dependencies when using filemon. The DPADD data in .depend will be redundant with what is in the .meta file. Also extend NO_EXTRADEPEND support to bsd.prog.mk. Approved by: re (blanket, META_MODE) Sponsored by: EMC / Isilon Storage Division
2016-06-21 21:55:03 +00:00
.if !empty(.MAKE.MODE:Unormal:Mmeta) && empty(.MAKE.MODE:Unormal:Mnofilemon)
_meta_filemon= 1
.endif
FAST_DEPEND: Fix 'make all install' not properly rebuilding based on .depend.* files. An optimization is in place to skip reading the .depend.* files with 'make install'. This was too strong and broke 'make all install' and 'make foo.o foo install'. Now only skip reading the dependency files if all make targets ran are install targets. The problem comes about because headers are only added in as a guessed dependency if .depend.* files do not yet exist. If they do exist, even if being skipped from being read, then the header dependencies are not applied. This applies to all #included files, and not just headers. Reported by: kib MFC after: 1 day Sponsored by: EMC / Isilon Storage Division
2016-08-23 19:37:18 +00:00
# Skip reading .depend when not needed to speed up tree-walks and simple
# lookups. For install, only do this if no other targets are specified.
META_MODE: Don't generate or read _EXTRADEPEND dependencies when using filemon. The DPADD data in .depend will be redundant with what is in the .meta file. Also extend NO_EXTRADEPEND support to bsd.prog.mk. Approved by: re (blanket, META_MODE) Sponsored by: EMC / Isilon Storage Division
2016-06-21 21:55:03 +00:00
# Also skip generating or including .depend.* files if in meta+filemon mode
# since it will track dependencies itself. OBJS_DEPEND_GUESS is still used.
Fix various 'make *clean *all *install' combinations. This follows commits like r320174 in share/mk/bsd.dep.mk. MFC after: 3 days Sponsored by: Dell EMC Isilon
2017-06-21 19:55:26 +00:00
.if !empty(.MAKEFLAGS:M-V${_V_READ_DEPEND}) || make(*obj) || \
${.TARGETS:M*clean*} == ${.TARGETS} || \
FAST_DEPEND: Fix 'make all install' not properly rebuilding based on .depend.* files. An optimization is in place to skip reading the .depend.* files with 'make install'. This was too strong and broke 'make all install' and 'make foo.o foo install'. Now only skip reading the dependency files if all make targets ran are install targets. The problem comes about because headers are only added in as a guessed dependency if .depend.* files do not yet exist. If they do exist, even if being skipped from being read, then the header dependencies are not applied. This applies to all #included files, and not just headers. Reported by: kib MFC after: 1 day Sponsored by: EMC / Isilon Storage Division
2016-08-23 19:37:18 +00:00
${.TARGETS:M*install*} == ${.TARGETS} || \
Fix various 'make *clean *all *install' combinations. This follows commits like r320174 in share/mk/bsd.dep.mk. MFC after: 3 days Sponsored by: Dell EMC Isilon
2017-06-21 19:55:26 +00:00
defined(_meta_filemon)
Avoid reading .depend.* in simple cases where not needed. This will speed up some tree-walks with FAST_DEPEND which otherwise would include length(SRCS) .depend files. This also uses a trick suggested by sjg@ to still read them in when specifying _V_READ_DEPEND=1 in the env/make args. Sponsored by: EMC / Isilon Storage Division
2016-02-19 00:41:24 +00:00
_SKIP_READ_DEPEND= 1
.MAKE.DEPENDFILE= /dev/null
.endif
Fix "make depend" to not redundantly rebuild the .depend file. Reviewed by: bde (I think so)
2005-04-22 17:36:25 +00:00
kernel-depend: .depend
Teach this to create the "machine" and ${MACHINE_ARCH} (for pc98 only now) symbolic links in the kernel compile directory, rather than relying on config(8) to do this. (The changes to config(8) will be committed separately.) This is aimed towards making the config(8) as lightweight as possible. Idea by: bde (all bugs are mine)
2005-11-30 18:15:06 +00:00
SRCS= assym.s vnode_if.h ${BEFORE_DEPEND} ${CFILES} \
${SYSTEM_CFILES} ${GEN_CFILES} ${SFILES} \
${MFILES:T:S/.m$/.h/}
Always remove .depend.* in case switching between FAST_DEPEND on/off. This was missed in r295666. Sponsored by: EMC / Isilon Storage Division
2016-02-22 21:01:25 +00:00
DEPENDFILES= .depend .depend.*
Hook the meta/nofilemon build into using FAST_DEPEND. FAST_DEPEND is intended to be the "skip 'make depend' and mkdep" feature. Since DIRDEPS_BUILD does this already with some of its own hacks, and filemon doesn't need this, and nofilemon does, teach it how to handle each of these cases. In meta+filemon mode filemon will handle dependencies itself via the meta mode logic in bmake. We still want to set MK_FAST_DEPEND=yes to enable some logic that indicates that 'make depend' is skipped in the traditional sense. The actual .depend.* files will be skipped. When nofilemon is set though we still need to track and generate dependencies. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:13 +00:00
DEPENDOBJS+= ${SYSTEM_OBJS} genassym.o
DEPENDFILES_OBJS= ${DEPENDOBJS:O:u:C/^/.depend./}
FAST_DEPEND: Use .dinclude to enable full .depend logic in bmake. The inclusion of .MAKE.DEPENDFILE (.depend) has special logic in make to ignore stale/missing dependencies. bmake 20160220 added a '.dinclude' directive that uses the special logic for .depend when including the file. This fixes a build error when a file is moved or deleted that exists in a .depend.OBJ file. This happened in r292782 when sha512c.c "moved" and an incremental build of lib/libmd would fail with: make: don't know how to make /usr/src/lib/libcrypt/../libmd/sha512c.c. Stop Now this will just be seen as a stale dependency and cause a rebuild: make: /usr/obj/usr/src/lib/libmd/.depend.sha512c.o, 13: ignoring stale .depend for /usr/src/lib/libcrypt/../libmd/sha512c.c --- sha512c.o --- ... This rebuild will only be done once since the .depend.sha512c.o will be updated on the build with the -MF flags. This also removes -MP being passed for the .depend.OBJ generation (which would create fake targets for system headers) since the logic is no longer needed to protect from missing files. Sponsored by: EMC / Isilon Storage Division
2016-03-11 04:09:56 +00:00
.if ${MAKE_VERSION} < 20160220
DEPEND_MP?= -MP
.endif
DEPEND_CFLAGS+= -MD ${DEPEND_MP} -MF.depend.${.TARGET}
Add a FAST_DEPEND option, off by default, which speeds up the build significantly. This speeds up buildworld by 16% on my system and buildkernel by 35%. Rather than calling mkdep(1), which is just a wrapper around 'cc -E', use the modern -MD -MT -MF flags to gather and generate dependencies during compilation. This flag was introduced in GCC "a long time ago", in GCC 3.0, and is also supported by Clang. (It appears that ICC also supports this but I do not have access to test it). This avoids running the preprocessor *twice* for every build, in both 'make depend' and 'make all'. This is especially noticeable when using ccache since it does not cache preprocessor results from mkdep(1) / 'cc -E', but still speeds up compilation with the -MD flags. For 'make depend' a tree-walk is still done to ensure that all DPSRCS are generated when expected, and that beforedepend/afterdepend and _EXTRADEPEND are all still respected. In time this may change but for now I've been conservative. The time for a tree-walk with -j combined with SUBDIR_PARALLEL is not significant. For example, it takes about 9 seconds with -j15 to walk all of src/ for 'make depend' now on my system. A .depend file is still generated with the various rules that apply to the final target, or custom rules. Otherwise there are now per-built-object-file .depend files, such as .depend.filename.o. These are included directly by make rather than populating .depend with a loop and .depend lines, which only added overhead to the now almost-NOP 'make depend' phase. Before this I experimented with having mkdep(1) called in parallel per-file. While this improved the kernel and lib/libc 'make depend' phase, it resulted in slower build times overall. The -M flags are removed from CFLAGS when linking since they have no effect. Enabling this by default, for src or out-of-src, can be done once more testing has been done, such as a ports exp-run, and with more compilers. The system I used for testing was: WITNESS Build options: -j20 WITH_LLDB=yes WITH_DEBUG_FILES=yes WITH_FAST_DEPEND=yes DISK: ZFS 3-way mirror with very slow disks using SSD l2arc/log. The arc was fully populated with src tree files. RAM: 76GiB CPU: Intel(R) Xeon(R) CPU L5520 @2.27GHz 2 package(s) x 4 core(s) x 2 SMT threads = hw.ncpu=16 buildworld: x buildworld-before + buildworld-fastdep +-------------------------------------------------------------------------------+ |+ | |+ | |+ xx x| | |_MA___|| |A | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 3744.13 3794.31 3752.25 3763.5633 26.935139 + 3 3153.34 3155.16 3154.2 3154.2333 0.91045776 Difference at 95.0% confidence -609.33 +/- 43.1943 -16.1902% +/- 1.1477% (Student's t, pooled s = 19.0569) buildkernel: x buildkernel-before + buildkernel-fastdep +-------------------------------------------------------------------------------+ |+ x | |++ xx| | A|| |A| | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 571.57 573.94 571.79 572.43333 1.3094401 + 3 369.12 370.57 369.3 369.66333 0.79033748 Difference at 95.0% confidence -202.77 +/- 2.45131 -35.4225% +/- 0.428227% (Student's t, pooled s = 1.0815) Sponsored by: EMC / Isilon Storage Division MFC after: 3 weeks Relnotes: yes
2015-11-06 04:45:29 +00:00
DEPEND_CFLAGS+= -MT${.TARGET}
Hook the meta/nofilemon build into using FAST_DEPEND. FAST_DEPEND is intended to be the "skip 'make depend' and mkdep" feature. Since DIRDEPS_BUILD does this already with some of its own hacks, and filemon doesn't need this, and nofilemon does, teach it how to handle each of these cases. In meta+filemon mode filemon will handle dependencies itself via the meta mode logic in bmake. We still want to set MK_FAST_DEPEND=yes to enable some logic that indicates that 'make depend' is skipped in the traditional sense. The actual .depend.* files will be skipped. When nofilemon is set though we still need to track and generate dependencies. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:13 +00:00
.if !defined(_meta_filemon)
FAST_DEPEND: Apply conditional -MF from r291945 to kernel as well. Sponsored by: EMC / Isilon Storage Division
2016-02-19 00:41:41 +00:00
.if defined(.PARSEDIR)
# Only add in DEPEND_CFLAGS for CFLAGS on files we expect from DEPENDOBJS
# as those are the only ones we will include.
Implement the dependency condition more safely. Nested : are not handled well without "". Sponsored by: EMC / Isilon Storage Division
2016-04-14 21:04:49 +00:00
DEPEND_CFLAGS_CONDITION= "${DEPENDOBJS:M${.TARGET}}" != ""
FAST_DEPEND: Apply conditional -MF from r291945 to kernel as well. Sponsored by: EMC / Isilon Storage Division
2016-02-19 00:41:41 +00:00
CFLAGS+= ${${DEPEND_CFLAGS_CONDITION}:?${DEPEND_CFLAGS}:}
.else
Add a FAST_DEPEND option, off by default, which speeds up the build significantly. This speeds up buildworld by 16% on my system and buildkernel by 35%. Rather than calling mkdep(1), which is just a wrapper around 'cc -E', use the modern -MD -MT -MF flags to gather and generate dependencies during compilation. This flag was introduced in GCC "a long time ago", in GCC 3.0, and is also supported by Clang. (It appears that ICC also supports this but I do not have access to test it). This avoids running the preprocessor *twice* for every build, in both 'make depend' and 'make all'. This is especially noticeable when using ccache since it does not cache preprocessor results from mkdep(1) / 'cc -E', but still speeds up compilation with the -MD flags. For 'make depend' a tree-walk is still done to ensure that all DPSRCS are generated when expected, and that beforedepend/afterdepend and _EXTRADEPEND are all still respected. In time this may change but for now I've been conservative. The time for a tree-walk with -j combined with SUBDIR_PARALLEL is not significant. For example, it takes about 9 seconds with -j15 to walk all of src/ for 'make depend' now on my system. A .depend file is still generated with the various rules that apply to the final target, or custom rules. Otherwise there are now per-built-object-file .depend files, such as .depend.filename.o. These are included directly by make rather than populating .depend with a loop and .depend lines, which only added overhead to the now almost-NOP 'make depend' phase. Before this I experimented with having mkdep(1) called in parallel per-file. While this improved the kernel and lib/libc 'make depend' phase, it resulted in slower build times overall. The -M flags are removed from CFLAGS when linking since they have no effect. Enabling this by default, for src or out-of-src, can be done once more testing has been done, such as a ports exp-run, and with more compilers. The system I used for testing was: WITNESS Build options: -j20 WITH_LLDB=yes WITH_DEBUG_FILES=yes WITH_FAST_DEPEND=yes DISK: ZFS 3-way mirror with very slow disks using SSD l2arc/log. The arc was fully populated with src tree files. RAM: 76GiB CPU: Intel(R) Xeon(R) CPU L5520 @2.27GHz 2 package(s) x 4 core(s) x 2 SMT threads = hw.ncpu=16 buildworld: x buildworld-before + buildworld-fastdep +-------------------------------------------------------------------------------+ |+ | |+ | |+ xx x| | |_MA___|| |A | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 3744.13 3794.31 3752.25 3763.5633 26.935139 + 3 3153.34 3155.16 3154.2 3154.2333 0.91045776 Difference at 95.0% confidence -609.33 +/- 43.1943 -16.1902% +/- 1.1477% (Student's t, pooled s = 19.0569) buildkernel: x buildkernel-before + buildkernel-fastdep +-------------------------------------------------------------------------------+ |+ x | |++ xx| | A|| |A| | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 571.57 573.94 571.79 572.43333 1.3094401 + 3 369.12 370.57 369.3 369.66333 0.79033748 Difference at 95.0% confidence -202.77 +/- 2.45131 -35.4225% +/- 0.428227% (Student's t, pooled s = 1.0815) Sponsored by: EMC / Isilon Storage Division MFC after: 3 weeks Relnotes: yes
2015-11-06 04:45:29 +00:00
CFLAGS+= ${DEPEND_CFLAGS}
FAST_DEPEND: Apply conditional -MF from r291945 to kernel as well. Sponsored by: EMC / Isilon Storage Division
2016-02-19 00:41:41 +00:00
.endif
Avoid reading .depend.* in simple cases where not needed. This will speed up some tree-walks with FAST_DEPEND which otherwise would include length(SRCS) .depend files. This also uses a trick suggested by sjg@ to still read them in when specifying _V_READ_DEPEND=1 in the env/make args. Sponsored by: EMC / Isilon Storage Division
2016-02-19 00:41:24 +00:00
.if !defined(_SKIP_READ_DEPEND)
Hook the meta/nofilemon build into using FAST_DEPEND. FAST_DEPEND is intended to be the "skip 'make depend' and mkdep" feature. Since DIRDEPS_BUILD does this already with some of its own hacks, and filemon doesn't need this, and nofilemon does, teach it how to handle each of these cases. In meta+filemon mode filemon will handle dependencies itself via the meta mode logic in bmake. We still want to set MK_FAST_DEPEND=yes to enable some logic that indicates that 'make depend' is skipped in the traditional sense. The actual .depend.* files will be skipped. When nofilemon is set though we still need to track and generate dependencies. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:13 +00:00
.for __depend_obj in ${DEPENDFILES_OBJS}
FAST_DEPEND: Use .dinclude to enable full .depend logic in bmake. The inclusion of .MAKE.DEPENDFILE (.depend) has special logic in make to ignore stale/missing dependencies. bmake 20160220 added a '.dinclude' directive that uses the special logic for .depend when including the file. This fixes a build error when a file is moved or deleted that exists in a .depend.OBJ file. This happened in r292782 when sha512c.c "moved" and an incremental build of lib/libmd would fail with: make: don't know how to make /usr/src/lib/libcrypt/../libmd/sha512c.c. Stop Now this will just be seen as a stale dependency and cause a rebuild: make: /usr/obj/usr/src/lib/libmd/.depend.sha512c.o, 13: ignoring stale .depend for /usr/src/lib/libcrypt/../libmd/sha512c.c --- sha512c.o --- ... This rebuild will only be done once since the .depend.sha512c.o will be updated on the build with the -MF flags. This also removes -MP being passed for the .depend.OBJ generation (which would create fake targets for system headers) since the logic is no longer needed to protect from missing files. Sponsored by: EMC / Isilon Storage Division
2016-03-11 04:09:56 +00:00
.if ${MAKE_VERSION} < 20160220
FAST_DEPEND: Prefer .OBJDIR depend files. Sponsored by: EMC / Isilon Storage Division
2016-02-29 21:10:47 +00:00
.sinclude "${.OBJDIR}/${__depend_obj}"
FAST_DEPEND: Use .dinclude to enable full .depend logic in bmake. The inclusion of .MAKE.DEPENDFILE (.depend) has special logic in make to ignore stale/missing dependencies. bmake 20160220 added a '.dinclude' directive that uses the special logic for .depend when including the file. This fixes a build error when a file is moved or deleted that exists in a .depend.OBJ file. This happened in r292782 when sha512c.c "moved" and an incremental build of lib/libmd would fail with: make: don't know how to make /usr/src/lib/libcrypt/../libmd/sha512c.c. Stop Now this will just be seen as a stale dependency and cause a rebuild: make: /usr/obj/usr/src/lib/libmd/.depend.sha512c.o, 13: ignoring stale .depend for /usr/src/lib/libcrypt/../libmd/sha512c.c --- sha512c.o --- ... This rebuild will only be done once since the .depend.sha512c.o will be updated on the build with the -MF flags. This also removes -MP being passed for the .depend.OBJ generation (which would create fake targets for system headers) since the logic is no longer needed to protect from missing files. Sponsored by: EMC / Isilon Storage Division
2016-03-11 04:09:56 +00:00
.else
.dinclude "${.OBJDIR}/${__depend_obj}"
.endif
Hook the meta/nofilemon build into using FAST_DEPEND. FAST_DEPEND is intended to be the "skip 'make depend' and mkdep" feature. Since DIRDEPS_BUILD does this already with some of its own hacks, and filemon doesn't need this, and nofilemon does, teach it how to handle each of these cases. In meta+filemon mode filemon will handle dependencies itself via the meta mode logic in bmake. We still want to set MK_FAST_DEPEND=yes to enable some logic that indicates that 'make depend' is skipped in the traditional sense. The actual .depend.* files will be skipped. When nofilemon is set though we still need to track and generate dependencies. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:13 +00:00
.endfor
.endif # !defined(_SKIP_READ_DEPEND)
.endif # !defined(_meta_filemon)
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
2016-02-24 17:19:18 +00:00
# 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
Hook the meta/nofilemon build into using FAST_DEPEND. FAST_DEPEND is intended to be the "skip 'make depend' and mkdep" feature. Since DIRDEPS_BUILD does this already with some of its own hacks, and filemon doesn't need this, and nofilemon does, teach it how to handle each of these cases. In meta+filemon mode filemon will handle dependencies itself via the meta mode logic in bmake. We still want to set MK_FAST_DEPEND=yes to enable some logic that indicates that 'make depend' is skipped in the traditional sense. The actual .depend.* files will be skipped. When nofilemon is set though we still need to track and generate dependencies. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:13 +00:00
# Guess some dependencies for when no ${DEPENDFILE}.OBJ is generated yet.
# For meta+filemon the .meta file is checked for since it is the dependency
# file used.
.for __obj in ${DEPENDOBJS:O:u}
.if (defined(_meta_filemon) && !exists(${.OBJDIR}/${__obj}.meta)) || \
(!defined(_meta_filemon) && !exists(${.OBJDIR}/.depend.${__obj}))
FAST_DEPEND: Rework how guessed dependencies are handled. Rather than depend on .depend not existing, check the actual .depend.OBJ file that will be used for that object. If it doesn't exist then use the guessed dependencies. FAST_DEPEND may never have a .depend file. Not having one means all of the previous logic would over-depend all object files on all headers which is not what we wanted. It also means that if a .depend is generated before a build is done for _EXTRADEPEND (such as for PROG or LIB) then all of these dependencies would not be used since the .depend wasn't generated from mkdep and the real .depend.* files are not generated until the build. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:05 +00:00
.if ${SYSTEM_OBJS:M${__obj}}
${__obj}: ${OBJS_DEPEND_GUESS}
FAST_DEPEND: Rework optimization for r290524. The .MAKEFLAGS check inside of the .for loop is extremely slow for some reason. Just moving it out of the loop trimmed -V lookup time from 11 seconds to 1 second in the kernel obj directory. Sponsored by: EMC / Isilon Storage Division
2016-01-15 22:08:51 +00:00
.endif
FAST_DEPEND: Rework how guessed dependencies are handled. Rather than depend on .depend not existing, check the actual .depend.OBJ file that will be used for that object. If it doesn't exist then use the guessed dependencies. FAST_DEPEND may never have a .depend file. Not having one means all of the previous logic would over-depend all object files on all headers which is not what we wanted. It also means that if a .depend is generated before a build is done for _EXTRADEPEND (such as for PROG or LIB) then all of these dependencies would not be used since the .depend wasn't generated from mkdep and the real .depend.* files are not generated until the build. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:05 +00:00
${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
WITH_META_MODE: Fix suffix transformation rules with guessed dependencies. This is the same problem as r290629. With META_MODE we do not generate .depend files, so there is no proper dependency to lookup. Guessed dependencies must be used. If this proves to be a problem then we will have to generate and use .depend files even with META_MODE. Sponsored by: EMC / Isilon Storage Division
2016-05-21 01:31:48 +00:00
.elif defined(_meta_filemon)
# For meta mode we still need to know which file to depend on to avoid
# ambiguous suffix transformation rules from .PATH. Meta mode does not
WITH_META_MODE: Do include headers for specific guessed dependencies This is a follow-up to r300343. This is important for the OBJS_DEPEND_GUESS usage in gnu/usr.bin/cc/cc_tools. See comments for more details. Approved by: re (implicit) Sponsored by: EMC / Isilon Storage Division
2016-06-15 23:57:50 +00:00
# use .depend files. We really only need source files, not headers since
# they are typically in SRCS/beforebuild already. For target-specific
# guesses do include headers though since they may not be in SRCS.
WITH_META_MODE: Fix suffix transformation rules with guessed dependencies. This is the same problem as r290629. With META_MODE we do not generate .depend files, so there is no proper dependency to lookup. Guessed dependencies must be used. If this proves to be a problem then we will have to generate and use .depend files even with META_MODE. Sponsored by: EMC / Isilon Storage Division
2016-05-21 01:31:48 +00:00
.if ${SYSTEM_OBJS:M${__obj}}
${__obj}: ${OBJS_DEPEND_GUESS:N*.h}
.endif
WITH_META_MODE: Do include headers for specific guessed dependencies This is a follow-up to r300343. This is important for the OBJS_DEPEND_GUESS usage in gnu/usr.bin/cc/cc_tools. See comments for more details. Approved by: re (implicit) Sponsored by: EMC / Isilon Storage Division
2016-06-15 23:57:50 +00:00
${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
FAST_DEPEND: Rework how guessed dependencies are handled. Rather than depend on .depend not existing, check the actual .depend.OBJ file that will be used for that object. If it doesn't exist then use the guessed dependencies. FAST_DEPEND may never have a .depend file. Not having one means all of the previous logic would over-depend all object files on all headers which is not what we wanted. It also means that if a .depend is generated before a build is done for _EXTRADEPEND (such as for PROG or LIB) then all of these dependencies would not be used since the .depend wasn't generated from mkdep and the real .depend.* files are not generated until the build. Sponsored by: EMC / Isilon Storage Division
2016-02-24 17:19:05 +00:00
.endif
.endfor
Add a FAST_DEPEND option, off by default, which speeds up the build significantly. This speeds up buildworld by 16% on my system and buildkernel by 35%. Rather than calling mkdep(1), which is just a wrapper around 'cc -E', use the modern -MD -MT -MF flags to gather and generate dependencies during compilation. This flag was introduced in GCC "a long time ago", in GCC 3.0, and is also supported by Clang. (It appears that ICC also supports this but I do not have access to test it). This avoids running the preprocessor *twice* for every build, in both 'make depend' and 'make all'. This is especially noticeable when using ccache since it does not cache preprocessor results from mkdep(1) / 'cc -E', but still speeds up compilation with the -MD flags. For 'make depend' a tree-walk is still done to ensure that all DPSRCS are generated when expected, and that beforedepend/afterdepend and _EXTRADEPEND are all still respected. In time this may change but for now I've been conservative. The time for a tree-walk with -j combined with SUBDIR_PARALLEL is not significant. For example, it takes about 9 seconds with -j15 to walk all of src/ for 'make depend' now on my system. A .depend file is still generated with the various rules that apply to the final target, or custom rules. Otherwise there are now per-built-object-file .depend files, such as .depend.filename.o. These are included directly by make rather than populating .depend with a loop and .depend lines, which only added overhead to the now almost-NOP 'make depend' phase. Before this I experimented with having mkdep(1) called in parallel per-file. While this improved the kernel and lib/libc 'make depend' phase, it resulted in slower build times overall. The -M flags are removed from CFLAGS when linking since they have no effect. Enabling this by default, for src or out-of-src, can be done once more testing has been done, such as a ports exp-run, and with more compilers. The system I used for testing was: WITNESS Build options: -j20 WITH_LLDB=yes WITH_DEBUG_FILES=yes WITH_FAST_DEPEND=yes DISK: ZFS 3-way mirror with very slow disks using SSD l2arc/log. The arc was fully populated with src tree files. RAM: 76GiB CPU: Intel(R) Xeon(R) CPU L5520 @2.27GHz 2 package(s) x 4 core(s) x 2 SMT threads = hw.ncpu=16 buildworld: x buildworld-before + buildworld-fastdep +-------------------------------------------------------------------------------+ |+ | |+ | |+ xx x| | |_MA___|| |A | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 3744.13 3794.31 3752.25 3763.5633 26.935139 + 3 3153.34 3155.16 3154.2 3154.2333 0.91045776 Difference at 95.0% confidence -609.33 +/- 43.1943 -16.1902% +/- 1.1477% (Student's t, pooled s = 19.0569) buildkernel: x buildkernel-before + buildkernel-fastdep +-------------------------------------------------------------------------------+ |+ x | |++ xx| | A|| |A| | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 571.57 573.94 571.79 572.43333 1.3094401 + 3 369.12 370.57 369.3 369.66333 0.79033748 Difference at 95.0% confidence -202.77 +/- 2.45131 -35.4225% +/- 0.428227% (Student's t, pooled s = 1.0815) Sponsored by: EMC / Isilon Storage Division MFC after: 3 weeks Relnotes: yes
2015-11-06 04:45:29 +00:00
.NOPATH: .depend ${DEPENDFILES_OBJS}
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
.depend: .PRECIOUS ${SRCS}
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Teach this to create the "machine" and ${MACHINE_ARCH} (for pc98 only now) symbolic links in the kernel compile directory, rather than relying on config(8) to do this. (The changes to config(8) will be committed separately.) This is aimed towards making the config(8) as lightweight as possible. Idea by: bde (all bugs are mine)
2005-11-30 18:15:06 +00:00
_ILINKS= machine
Build changes that allow the modules on arm64. - Move the required kernel compiler flags from Makefile.arm64 to kern.mk. - Build arm64 modules as PIC; non-PIC relocations in .o for shared object output cannot be handled. - Do not try to install aarch64 symlink. - A hack for arm64 to avoid ld -r stage. See the comment for the explanation. Some functionality is lost, like ctf handling, but hopefully will be restored after newer linker is available. Reviewed by: andrew, emaste Tested by: andrew (on real hardware) Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D3796
2015-10-08 17:42:08 +00:00
.if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
Convert several instances of MACHINE_ARCH to MACHINE_CPUARCH and use the correct compiler flags on 64-bit PowerPC.
2010-07-13 13:11:18 +00:00
_ILINKS+= ${MACHINE_CPUARCH}
Teach this to create the "machine" and ${MACHINE_ARCH} (for pc98 only now) symbolic links in the kernel compile directory, rather than relying on config(8) to do this. (The changes to config(8) will be committed separately.) This is aimed towards making the config(8) as lightweight as possible. Idea by: bde (all bugs are mine)
2005-11-30 18:15:06 +00:00
.endif
Add an x86/include directory to the kernel to hold headers that are common to amd64, i386, and pc98. The headers are installed to /usr/include/x86 during an installworld, and an 'x86' symlink is created for kernel builds similar to 'machine' so that the headers can be included as <x86/foo.h>. Reviewed by: imp
2010-11-01 17:34:04 +00:00
.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
_ILINKS+= x86
.endif
Teach this to create the "machine" and ${MACHINE_ARCH} (for pc98 only now) symbolic links in the kernel compile directory, rather than relying on config(8) to do this. (The changes to config(8) will be committed separately.) This is aimed towards making the config(8) as lightweight as possible. Idea by: bde (all bugs are mine)
2005-11-30 18:15:06 +00:00
# Ensure that the link exists without depending on it when it exists.
.for _link in ${_ILINKS}
.if !exists(${.OBJDIR}/${_link})
Some objects - such as *_genassym.o are not hooked into SRCS OBJS or anything else, yet have a dependency on symlinks such as machine/ Reviewed by: obrien
2013-08-14 22:19:29 +00:00
${SRCS} ${CLEAN:M*.o}: ${_link}
Teach this to create the "machine" and ${MACHINE_ARCH} (for pc98 only now) symbolic links in the kernel compile directory, rather than relying on config(8) to do this. (The changes to config(8) will be committed separately.) This is aimed towards making the config(8) as lightweight as possible. Idea by: bde (all bugs are mine)
2005-11-30 18:15:06 +00:00
.endif
.endfor
${_ILINKS}:
@case ${.TARGET} in \
machine) \
path=${S}/${MACHINE}/include ;; \
Add an x86/include directory to the kernel to hold headers that are common to amd64, i386, and pc98. The headers are installed to /usr/include/x86 during an installworld, and an 'x86' symlink is created for kernel builds similar to 'machine' so that the headers can be included as <x86/foo.h>. Reviewed by: imp
2010-11-01 17:34:04 +00:00
*) \
path=${S}/${.TARGET}/include ;; \
Teach this to create the "machine" and ${MACHINE_ARCH} (for pc98 only now) symbolic links in the kernel compile directory, rather than relying on config(8) to do this. (The changes to config(8) will be committed separately.) This is aimed towards making the config(8) as lightweight as possible. Idea by: bde (all bugs are mine)
2005-11-30 18:15:06 +00:00
esac ; \
${ECHO} ${.TARGET} "->" $$path ; \
WITH_META_MDE: Fix machine/include and x86/include issues. - Fixes 'ln: File exists' errors. - Fixes creating include directories in the source directory as well. Sponsored by: EMC / Isilon Storage Division
2016-05-31 23:40:21 +00:00
ln -fhs $$path ${.TARGET}
Teach this to create the "machine" and ${MACHINE_ARCH} (for pc98 only now) symbolic links in the kernel compile directory, rather than relying on config(8) to do this. (The changes to config(8) will be committed separately.) This is aimed towards making the config(8) as lightweight as possible. Idea by: bde (all bugs are mine)
2005-11-30 18:15:06 +00:00
- Remove include links only when .depend is also removed, so that "make depend; make clean; make -n" works. - Preseve kernel's .depend if it already exists and its creation is interrupted. Reported/reviewed by: bde
2006-10-13 22:28:14 +00:00
# .depend needs include links so we remove them only together.
Add a FAST_DEPEND option, off by default, which speeds up the build significantly. This speeds up buildworld by 16% on my system and buildkernel by 35%. Rather than calling mkdep(1), which is just a wrapper around 'cc -E', use the modern -MD -MT -MF flags to gather and generate dependencies during compilation. This flag was introduced in GCC "a long time ago", in GCC 3.0, and is also supported by Clang. (It appears that ICC also supports this but I do not have access to test it). This avoids running the preprocessor *twice* for every build, in both 'make depend' and 'make all'. This is especially noticeable when using ccache since it does not cache preprocessor results from mkdep(1) / 'cc -E', but still speeds up compilation with the -MD flags. For 'make depend' a tree-walk is still done to ensure that all DPSRCS are generated when expected, and that beforedepend/afterdepend and _EXTRADEPEND are all still respected. In time this may change but for now I've been conservative. The time for a tree-walk with -j combined with SUBDIR_PARALLEL is not significant. For example, it takes about 9 seconds with -j15 to walk all of src/ for 'make depend' now on my system. A .depend file is still generated with the various rules that apply to the final target, or custom rules. Otherwise there are now per-built-object-file .depend files, such as .depend.filename.o. These are included directly by make rather than populating .depend with a loop and .depend lines, which only added overhead to the now almost-NOP 'make depend' phase. Before this I experimented with having mkdep(1) called in parallel per-file. While this improved the kernel and lib/libc 'make depend' phase, it resulted in slower build times overall. The -M flags are removed from CFLAGS when linking since they have no effect. Enabling this by default, for src or out-of-src, can be done once more testing has been done, such as a ports exp-run, and with more compilers. The system I used for testing was: WITNESS Build options: -j20 WITH_LLDB=yes WITH_DEBUG_FILES=yes WITH_FAST_DEPEND=yes DISK: ZFS 3-way mirror with very slow disks using SSD l2arc/log. The arc was fully populated with src tree files. RAM: 76GiB CPU: Intel(R) Xeon(R) CPU L5520 @2.27GHz 2 package(s) x 4 core(s) x 2 SMT threads = hw.ncpu=16 buildworld: x buildworld-before + buildworld-fastdep +-------------------------------------------------------------------------------+ |+ | |+ | |+ xx x| | |_MA___|| |A | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 3744.13 3794.31 3752.25 3763.5633 26.935139 + 3 3153.34 3155.16 3154.2 3154.2333 0.91045776 Difference at 95.0% confidence -609.33 +/- 43.1943 -16.1902% +/- 1.1477% (Student's t, pooled s = 19.0569) buildkernel: x buildkernel-before + buildkernel-fastdep +-------------------------------------------------------------------------------+ |+ x | |++ xx| | A|| |A| | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 571.57 573.94 571.79 572.43333 1.3094401 + 3 369.12 370.57 369.3 369.66333 0.79033748 Difference at 95.0% confidence -202.77 +/- 2.45131 -35.4225% +/- 0.428227% (Student's t, pooled s = 1.0815) Sponsored by: EMC / Isilon Storage Division MFC after: 3 weeks Relnotes: yes
2015-11-06 04:45:29 +00:00
kernel-cleandepend: .PHONY
rm -f ${DEPENDFILES} ${_ILINKS}
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
kernel-tags:
@[ -f .depend ] || { echo "you must make depend first"; exit 1; }
sh $S/conf/systags.sh
Add some missing .PHONY. These are relevant for WITH_META_MODE to ensure they are always reran and don't generate a .meta file. Sponsored by: EMC / Isilon Storage Division
2016-05-26 23:20:14 +00:00
kernel-install: .PHONY
Installing debug modules was a bad idea -- I bogusly assumed that our kernel linker will only load PT_LOAD segments, apparently not. Instead, produce .dbg objects from .debug objects, and install them together with non-debug objects, as described in objcopy(1). Original code by: obrien
2005-10-27 14:24:45 +00:00
@if [ ! -f ${KERNEL_KO} ] ; then \
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
echo "You must build a kernel first." ; \
exit 1 ; \
fi
.if exists(${DESTDIR}${KODIR})
-thiskernel=`sysctl -n kern.bootfile` ; \
Be resistant to DESTDIR being set to some unkosher value, e.g. "/". Noticed by: Steve Ames
2005-04-28 14:45:57 +00:00
if [ ! "`dirname "$$thiskernel"`" -ef ${DESTDIR}${KODIR} ] ; then \
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
chflags -R noschg ${DESTDIR}${KODIR} ; \
rm -rf ${DESTDIR}${KODIR} ; \
Install kernel debug data under /usr/lib/debug This avoids needing a large boot partition / file system in order to accommodate multiple kernels, and provides consistency with userland debug. This also simplifies the process of moving kernel debug files to a separate package and installing them on demand. In addition, change kernel debug file extension to .debug, to match userland debug files. When using the supported kernel installation method the /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) as is done with /boot/kernel. Developers wishing to maintain the historical behavior of installing debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). Reviewed by: bdrewery, brooks, imp, markj Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1006
2015-09-24 16:55:22 +00:00
rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ; \
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
else \
if [ -d ${DESTDIR}${KODIR}.old ] ; then \
chflags -R noschg ${DESTDIR}${KODIR}.old ; \
rm -rf ${DESTDIR}${KODIR}.old ; \
fi ; \
mv ${DESTDIR}${KODIR} ${DESTDIR}${KODIR}.old ; \
Install kernel debug data under /usr/lib/debug This avoids needing a large boot partition / file system in order to accommodate multiple kernels, and provides consistency with userland debug. This also simplifies the process of moving kernel debug files to a separate package and installing them on demand. In addition, change kernel debug file extension to .debug, to match userland debug files. When using the supported kernel installation method the /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) as is done with /boot/kernel. Developers wishing to maintain the historical behavior of installing debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). Reviewed by: bdrewery, brooks, imp, markj Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1006
2015-09-24 16:55:22 +00:00
if [ -n "${KERN_DEBUGDIR}" -a \
-d ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ]; then \
rm -rf ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \
mv ${DESTDIR}${KERN_DEBUGDIR}${KODIR} ${DESTDIR}${KERN_DEBUGDIR}${KODIR}.old ; \
fi ; \
Fix logic in Makefile.i386,v 1.249: only back up ${DESTDIR}${KODIR} to ${DESTDIR}${KODIR}.old if we have booted from ${DESTDIR}${KODIR}, and always keep kern.bootfile in a good shape.
2003-08-07 19:12:06 +00:00
sysctl kern.bootfile=${DESTDIR}${KODIR}.old/"`basename "$$thiskernel"`" ; \
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
fi
.endif
mkdir -p ${DESTDIR}${KODIR}
Do as r289391 did for share/mk and make installing to a non-existent directory an error. Most of these do a 'mkdir -p' or 'install -d' before installing, but add the trailing / here for consistency with the userland install. MFC after: 2 weeks X-MFC-With: r289391 Sponsored by: EMC / Isilon Storage Division
2015-10-17 05:49:07 +00:00
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/
Revert r222186 per instructions for FreeBSD 10. (a 10-CURRENT share/mk is already required to build a 10-CURRENT kernel on 9-STABLE)
2012-07-03 05:01:00 +00:00
.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
Install kernel debug data under /usr/lib/debug This avoids needing a large boot partition / file system in order to accommodate multiple kernels, and provides consistency with userland debug. This also simplifies the process of moving kernel debug files to a separate package and installing them on demand. In addition, change kernel debug file extension to .debug, to match userland debug files. When using the supported kernel installation method the /usr/lib/debug/boot/kernel directory will be renamed (to kernel.old) as is done with /boot/kernel. Developers wishing to maintain the historical behavior of installing debug files in /boot/kernel/ can set KERN_DEBUGDIR="" in src.conf(5). Reviewed by: bdrewery, brooks, imp, markj Relnotes: yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D1006
2015-09-24 16:55:22 +00:00
mkdir -p ${DESTDIR}${KERN_DEBUGDIR}${KODIR}
Do as r289391 did for share/mk and make installing to a non-existent directory an error. Most of these do a 'mkdir -p' or 'install -d' before installing, but add the trailing / here for consistency with the userland install. MFC after: 2 weeks X-MFC-With: r289391 Sponsored by: EMC / Isilon Storage Division
2015-10-17 05:49:07 +00:00
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/
Back out most of 1.84. It was unwise to force debug kernels to always be installed. It should have been optional to install a non-debug one, just like it was formerly optional to install a debug one. In order to do that, most of 1.84 had to go. Instead, make installing the debug kernel the default, but create a new option INSTALL_NODEBUG for those people that have small / partitions and good source control habits. This preserves the behavior of 1.84 while allowing it to be overriden for people (like me) that do not have the time to upgrade to get a bigger / and also don't have time for stupid makefile tricks when upgrading their older system, but still want a kernel.debug around if things go south.
2005-10-24 23:54:39 +00:00
.endif
If KERNEL_EXTRA is defined, make kernel-all target depend on it. If KERNEL_EXTRA_INSTALL is defined, install it into ${DESTDIR}${KODIR}.
2007-03-23 21:55:59 +00:00
.if defined(KERNEL_EXTRA_INSTALL)
Do as r289391 did for share/mk and make installing to a non-existent directory an error. Most of these do a 'mkdir -p' or 'install -d' before installing, but add the trailing / here for consistency with the userland install. MFC after: 2 weeks X-MFC-With: r289391 Sponsored by: EMC / Isilon Storage Division
2015-10-17 05:49:07 +00:00
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_EXTRA_INSTALL} ${DESTDIR}${KODIR}/
If KERNEL_EXTRA is defined, make kernel-all target depend on it. If KERNEL_EXTRA_INSTALL is defined, install it into ${DESTDIR}${KODIR}.
2007-03-23 21:55:59 +00:00
.endif
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
The install.debug and reinstall.debug targets are needed solely to build kernel and kernel modules so stop supporting them in bsd.subdir.mk and reimplement them in kern.post.mk and kmod.mk as special versions of the install and reinstall targets, and only define them if DEBUG is also defined (when debug versions are really built). Prompted by: bde
2002-04-24 11:26:19 +00:00
kernel-reinstall:
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
@-chflags -R noschg ${DESTDIR}${KODIR}
Do as r289391 did for share/mk and make installing to a non-existent directory an error. Most of these do a 'mkdir -p' or 'install -d' before installing, but add the trailing / here for consistency with the userland install. MFC after: 2 weeks X-MFC-With: r289391 Sponsored by: EMC / Isilon Storage Division
2015-10-17 05:49:07 +00:00
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO} ${DESTDIR}${KODIR}/
Revert r222186 per instructions for FreeBSD 10. (a 10-CURRENT share/mk is already required to build a 10-CURRENT kernel on 9-STABLE)
2012-07-03 05:01:00 +00:00
.if defined(DEBUG) && !defined(INSTALL_NODEBUG) && ${MK_KERNEL_SYMBOLS} != "no"
Do as r289391 did for share/mk and make installing to a non-existent directory an error. Most of these do a 'mkdir -p' or 'install -d' before installing, but add the trailing / here for consistency with the userland install. MFC after: 2 weeks X-MFC-With: r289391 Sponsored by: EMC / Isilon Storage Division
2015-10-17 05:49:07 +00:00
${INSTALL} -p -m 555 -o ${KMODOWN} -g ${KMODGRP} ${KERNEL_KO}.debug ${DESTDIR}${KERN_DEBUGDIR}${KODIR}/
Back out most of 1.84. It was unwise to force debug kernels to always be installed. It should have been optional to install a non-debug one, just like it was formerly optional to install a debug one. In order to do that, most of 1.84 had to go. Instead, make installing the debug kernel the default, but create a new option INSTALL_NODEBUG for those people that have small / partitions and good source control habits. This preserves the behavior of 1.84 while allowing it to be overriden for people (like me) that do not have the time to upgrade to get a bigger / and also don't have time for stupid makefile tricks when upgrading their older system, but still want a kernel.debug around if things go south.
2005-10-24 23:54:39 +00:00
.endif
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
config.o env.o hints.o vers.o vnode_if.o:
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
${NORMAL_C}
- CTF knob is now implemented using common scheme: MK_CTF=yes/no is defined based on WITH/WITHOUT_CTF settings, default is WITHOUT_CTF, NO_CTF overrides WITH_CTF (used by Makefile.inc1) - CTFCONVERT_CMD/NORMAL_CTFCONVERT are now defined to empty string if make(1) can handle empty commands
2011-11-30 18:11:49 +00:00
${NORMAL_CTFCONVERT}
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
config.ln env.ln hints.ln vers.ln vnode_if.ln:
Some glue to allow lint(1) to work on the kernel. This is not complete without some config(8) work. Config(8) needs to provide some ${NORMAL_LINT} rules to make foo.ln files.
2003-06-14 17:28:13 +00:00
${NORMAL_LINT}
Add WITH_REPRODUCIBLE_BUILD src.conf(5) knob to disable kernel metadata The kernel builds reproducibly, except for the time, date, user, and hostname baked into the kernel (reported at startup and via the kern.version sysctl for uname). Add a build knob to disable the inclusion of this metadata. Reviewed by: jhb MFC after: 1 month Relnotes: Yes Sponsored by: Reproducible Builds World Summit 2, Berlin Differential Revision: https://reviews.freebsd.org/D8809
2016-12-15 21:26:58 +00:00
.if ${MK_REPRODUCIBLE_BUILD} != "no"
REPRO_FLAG="-r"
.endif
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
vers.c: $S/conf/newvers.sh $S/sys/param.h ${SYSTEM_DEP}
Add WITH_REPRODUCIBLE_BUILD src.conf(5) knob to disable kernel metadata The kernel builds reproducibly, except for the time, date, user, and hostname baked into the kernel (reported at startup and via the kern.version sysctl for uname). Add a build knob to disable the inclusion of this metadata. Reviewed by: jhb MFC after: 1 month Relnotes: Yes Sponsored by: Reproducible Builds World Summit 2, Berlin Differential Revision: https://reviews.freebsd.org/D8809
2016-12-15 21:26:58 +00:00
MAKE=${MAKE} sh $S/conf/newvers.sh ${REPRO_FLAG} ${KERN_IDENT}
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
vnode_if.c: $S/tools/vnode_if.awk $S/kern/vnode_if.src
Use vnode_if.awk rather than vnode_if.pl
2002-03-01 01:21:29 +00:00
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -c
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
MF kmod.mk 1.176: Properly handle vnode_if.h dependencies. Instructed by: bde
2006-10-26 19:04:20 +00:00
vnode_if.h vnode_if_newproto.h vnode_if_typedef.h: $S/tools/vnode_if.awk \
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
$S/kern/vnode_if.src
vnode_if.h: vnode_if_newproto.h vnode_if_typedef.h
Use vnode_if.awk rather than vnode_if.pl
2002-03-01 01:21:29 +00:00
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -h
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
vnode_if_newproto.h:
Back when VOP_* was introduced, we did not have new-style struct initializations but we did have lofty goals and big ideals. Adjust to more contemporary circumstances and gain type checking. Replace the entire vop_t frobbing thing with properly typed structures. The only casualty is that we can not add a new VOP_ method with a loadable module. History has not given us reason to belive this would ever be feasible in the the first place. Eliminate in toto VOCALL(), vop_t, VNODEOP_SET() etc. Give coda correct prototypes and function definitions for all vop_()s. Generate a bit more data from the vnode_if.src file: a struct vop_vector and protype typedefs for all vop methods. Add a new vop_bypass() and make vop_default be a pointer to another struct vop_vector. Remove a lot of vfs_init since vop_vector is ready to use from the compiler. Cast various vop_mumble() to void * with uppercase name, for instance VOP_PANIC, VOP_NULL etc. Implement VCALL() by making vdesc_offset the offsetof() the relevant function pointer in vop_vector. This is disgusting but since the code is generated by a script comparatively safe. The alternative for nullfs etc. would be much worse. Fix up all vnode method vectors to remove casts so they become typesafe. (The bulk of this is generated by scripts)
2004-12-01 23:16:38 +00:00
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -p
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
vnode_if_typedef.h:
Back when VOP_* was introduced, we did not have new-style struct initializations but we did have lofty goals and big ideals. Adjust to more contemporary circumstances and gain type checking. Replace the entire vop_t frobbing thing with properly typed structures. The only casualty is that we can not add a new VOP_ method with a loadable module. History has not given us reason to belive this would ever be feasible in the the first place. Eliminate in toto VOCALL(), vop_t, VNODEOP_SET() etc. Give coda correct prototypes and function definitions for all vop_()s. Generate a bit more data from the vnode_if.src file: a struct vop_vector and protype typedefs for all vop methods. Add a new vop_bypass() and make vop_default be a pointer to another struct vop_vector. Remove a lot of vfs_init since vop_vector is ready to use from the compiler. Cast various vop_mumble() to void * with uppercase name, for instance VOP_PANIC, VOP_NULL etc. Implement VCALL() by making vdesc_offset the offsetof() the relevant function pointer in vop_vector. This is disgusting but since the code is generated by a script comparatively safe. The alternative for nullfs etc. would be much worse. Fix up all vnode method vectors to remove casts so they become typesafe. (The bulk of this is generated by scripts)
2004-12-01 23:16:38 +00:00
${AWK} -f $S/tools/vnode_if.awk $S/kern/vnode_if.src -q
Factor the common parts of the Makefile.foo files. This introduces two new files: kern.pre.mk, which contains most of the definitions, and kern.post.mk, which contains most of the rules. I've tested this on i386 and pc98. I have had feedback on the sparc64 port, but no reports from anybody on alpha, ia64 or powerpc. I appologize in advance if I've broken you. Reviewed by: jake, jhb, arch@
2001-11-02 21:34:20 +00:00
Change md(4) to use weak symbols as start, end and size for the embedded root disk. The embedded image is linked into the kernel in the .mfs section. Add rules and variables to kern.pre.mk and kern.post.mk that handle the linking of the image. First objcopy is used to generate an object file. Then, the object file is linked into the kernel. Submitted by: Steve Kiernan <stevek@juniper.net> Reviewed by: brooks@ Obtained from: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D2903
2015-08-13 15:16:34 +00:00
.if ${MFS_IMAGE:Uno} != "no"
Fix MFS builds when both MD_ROOT_SIZE and MFS_IMAGE are specified MD_ROOT_SIZE and embed_mfs.sh were basically retired as part of https://reviews.freebsd.org/D2903 . However, when building a kernel with 'options MD_ROOT_SIZE' specified, this results in a non-working MFS, as within sys/dev/md/md.c we fall within the wrong # ifdef. This patch implements the following: * Allow kernels to be built without the MD_ROOT_SIZE option, which results in a kernel built as per D2903. * Allow kernels to be built with the MD_ROOT_SIZE option, which results in a kernel built similarly to the pre-D2903 way, with the following differences: * The MFS is now put in a separate section within the kernel (oldmfs, so it differs from the mfs section introduced by D2903). * embed_mfs.sh is changed, so it looks up the oldmfs section within the kernel, gets its size and offset, sees if the MFS will fit within the allocated oldmfs section and only if all is well does a dd of the MFS image into the kernel. Submitted by: Stanislav Galabov <sgalabov@gmail.com> Reviewed by: brooks, imp Differential Revision: https://reviews.freebsd.org/D5093
2016-02-02 07:02:51 +00:00
.if empty(MD_ROOT_SIZE_CONFIGURED)
Change md(4) to use weak symbols as start, end and size for the embedded root disk. The embedded image is linked into the kernel in the .mfs section. Add rules and variables to kern.pre.mk and kern.post.mk that handle the linking of the image. First objcopy is used to generate an object file. Then, the object file is linked into the kernel. Submitted by: Steve Kiernan <stevek@juniper.net> Reviewed by: brooks@ Obtained from: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D2903
2015-08-13 15:16:34 +00:00
# Generate an object file from the file system image to embed in the kernel
# via linking. Make sure the contents are in the mfs section and rename the
# start/end/size variables to __start_mfs, __stop_mfs, and mfs_size,
# respectively.
Revert r301079. This breaks cross-building with WITH_META_MODE since it will rebuild 'build-tools' during the 'everything' phase. A more proper fix is coming to bmake to implicitly require .META unless .NOMETA (and other restrictions) are in place.
2016-06-03 19:25:36 +00:00
embedfs_${MFS_IMAGE:T:R}.o: ${MFS_IMAGE}
Change md(4) to use weak symbols as start, end and size for the embedded root disk. The embedded image is linked into the kernel in the .mfs section. Add rules and variables to kern.pre.mk and kern.post.mk that handle the linking of the image. First objcopy is used to generate an object file. Then, the object file is linked into the kernel. Submitted by: Steve Kiernan <stevek@juniper.net> Reviewed by: brooks@ Obtained from: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D2903
2015-08-13 15:16:34 +00:00
${OBJCOPY} --input-target binary \
--output-target ${EMBEDFS_FORMAT.${MACHINE_ARCH}} \
--binary-architecture ${EMBEDFS_ARCH.${MACHINE_ARCH}} \
${MFS_IMAGE} ${.TARGET}
${OBJCOPY} \
--rename-section .data=mfs,contents,alloc,load,readonly,data \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_size=__mfs_root_size \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_start=mfs_root \
--redefine-sym \
_binary_${MFS_IMAGE:C,[^[:alnum:]],_,g}_end=mfs_root_end \
${.TARGET}
.endif
Fix MFS builds when both MD_ROOT_SIZE and MFS_IMAGE are specified MD_ROOT_SIZE and embed_mfs.sh were basically retired as part of https://reviews.freebsd.org/D2903 . However, when building a kernel with 'options MD_ROOT_SIZE' specified, this results in a non-working MFS, as within sys/dev/md/md.c we fall within the wrong # ifdef. This patch implements the following: * Allow kernels to be built without the MD_ROOT_SIZE option, which results in a kernel built as per D2903. * Allow kernels to be built with the MD_ROOT_SIZE option, which results in a kernel built similarly to the pre-D2903 way, with the following differences: * The MFS is now put in a separate section within the kernel (oldmfs, so it differs from the mfs section introduced by D2903). * embed_mfs.sh is changed, so it looks up the oldmfs section within the kernel, gets its size and offset, sees if the MFS will fit within the allocated oldmfs section and only if all is well does a dd of the MFS image into the kernel. Submitted by: Stanislav Galabov <sgalabov@gmail.com> Reviewed by: brooks, imp Differential Revision: https://reviews.freebsd.org/D5093
2016-02-02 07:02:51 +00:00
.endif
Change md(4) to use weak symbols as start, end and size for the embedded root disk. The embedded image is linked into the kernel in the .mfs section. Add rules and variables to kern.pre.mk and kern.post.mk that handle the linking of the image. First objcopy is used to generate an object file. Then, the object file is linked into the kernel. Submitted by: Steve Kiernan <stevek@juniper.net> Reviewed by: brooks@ Obtained from: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D2903
2015-08-13 15:16:34 +00:00
Protect against .depend file somewhere else in the .PATH. Also consolidate building rules for special files.
2003-06-22 17:57:56 +00:00
# XXX strictly, everything depends on Makefile because changes to ${PROF}
# only appear there, but we don't handle that.
Some glue to allow lint(1) to work on the kernel. This is not complete without some config(8) work. Config(8) needs to provide some ${NORMAL_LINT} rules to make foo.ln files.
2003-06-14 17:28:13 +00:00
Initiate the de-orbit burn sequence for <bsd.kern.mk>. Always use sys/conf/kern.mk when building kernel/modules. <bsd.kern.mk> is only preserved for sys/boot/pc98/boot2 for now, but this will be fixed. If there are other users of <bsd.kern.mk>, please let me know. Reminded by: bde
2003-02-28 22:12:17 +00:00
.include "kern.mk"
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