freebsd-skq/share/mk/bsd.opts.mk

135 lines
3.8 KiB
Makefile
Raw Normal View History

# $FreeBSD$
#
# Option file for src builds.
#
# Users define WITH_FOO and WITHOUT_FOO on the command line or in /etc/src.conf
# and /etc/make.conf files. These translate in the build system to MK_FOO={yes,no}
# with (usually) sensible defaults.
#
# Makefiles must include bsd.opts.mk after defining specific MK_FOO options that
# are applicable for that Makefile (typically there are none, but sometimes there
# are exceptions). Recursive makes usually add MK_FOO=no for options that they wish
# to omit from that make.
#
# Makefiles must include bsd.mkopt.mk before they test the value of any MK_FOO
# variable.
#
# Makefiles may also assume that this file is included by bsd.own.mk should it
# need variables defined there prior to the end of the Makefile where
# bsd.{subdir,lib.bin}.mk is traditionally included.
#
# The old-style YES_FOO and NO_FOO are being phased out. No new instances of them
# should be added. Old instances should be removed since they were just to
# bridge the gap between FreeBSD 4 and FreeBSD 5.
#
# Makefiles should never test WITH_FOO or WITHOUT_FOO directly (although an
# exception is made for _WITHOUT_SRCONF which turns off this mechanism
# completely).
#
.if !target(__<bsd.opts.mk>__)
__<bsd.opts.mk>__:
.if !defined(_WITHOUT_SRCCONF)
#
# Define MK_* variables (which are either "yes" or "no") for users
# to set via WITH_*/WITHOUT_* in /etc/src.conf and override in the
# make(1) environment.
# These should be tested with `== "no"' or `!= "no"' in makefiles.
# The NO_* variables should only be set by makefiles for variables
# that haven't been converted over.
#
# Only these options are used by bsd.*.mk. KERBEROS and OPENSSH are
# unfortunately needed to support statically linking the entire
# tree. su(1) wouldn't link since it depends on PAM which depends on
# ssh libraries when building with OPENSSH, and likewise for KERBEROS.
# All other variables used to build /usr/src live in src.opts.mk
# and variables from both files are documented in src.conf(5).
__DEFAULT_YES_OPTIONS = \
ASSERT_DEBUG \
DEBUG_FILES \
2014-05-10 16:38:54 +00:00
DOCCOMPRESS \
INCLUDES \
INSTALLLIB \
KERBEROS \
Add limited sandbox capability to "make check" == Rationale == r295380 introduced "make check" and consolidated means for running test code in an attempt to simplify running tests. One could either install files/libraries/programs and run "make check", or run "make check" with an explicit CHECKDIR, e.g., `make check CHECKDIR=$(make -V.OBJDIR)``. One criticism that was received is that "make check" should be run with the intent of making dev->test->commit easier, which means that the target audience's workflow should be developers. One developer pattern available in other opensource projects is to run test code from a developer sandbox, instead of installing to a system. == Method == This approach is slightly different from the standard approach, in the sense that it builds and installs into a deterministic directory under .OBJDIR (as I call it, the "sandbox"), then runs "make check" against that. In the event the test run is successful, the deterministic directory is removed to save space. == Approach == bsd.lib.mk, bsd.prog.mk: To support this functionality, a new variable `HAS_TESTS` is being added. HAS_TESTS enables appropriate behavior with bsd.lib.mk and bsd.prog.mk, as follows: - Add "make check" as an available target from the directory. - Pass down appropriate variables via ${TESTS_ENV}, i.e., ${TESTS_LD_LIBRARY_PATH} and ${TESTS_PATH}. One should add "HAS_TESTS" to directories containing tests in them, e.g. from bin/sh/Makefile, HAS_TESTS= SUBDIR.${MK_TESTS}+= tests HAS_TESTS doesn't automatically add the tests subdirectory for flexibility reasons. bsd.opts.mk, src.opts.mk: - The knob ${MK_MAKE_CHECK_USE_SANDBOX} has been added, both to explicitly direct (internally) when to set a deterministic ${DESTDIR} and to also allow users to disable this behavior globally, i.e., via src.conf. - MK_TESTS has been promoted from src.opts.mk to bsd.opts.mk to leverage syntactic sugar for having MK_TESTS be a dependency for MK_MAKE_CHECK_USE_SANDBOX, but to also ensure that src.opts.mk isn't required to use suite.test.mk (which is a dependency of bsd.test.mk). suite.test.mk: - beforecheck behavior (when MK_MAKE_CHECK_USE_SANDBOX is enabled) is modified from a no-op to: -- Build. -- Run "make hierarchy" on the sandbox dir. -- Install the tests/files to the sandbox dir. - aftercheck behavior (when MK_MAKE_CHECK_USE_SANDBOX is enabled) is modified from a no-op to: -- Remove the sandbox dir. Again, because the dependency order set in bsd.test.mk is beforecheck -> check -> aftercheck, "make check" will not be run unless "beforecheck" completes successfully, and "aftercheck" will not be run unless "beforecheck" and "check" complete successfully. == Caveats == - This target must either be run with MK_INSTALL_AS_USER or as root. Otherwise it will fail when running "make install" as the default user/group for many makefiles when calling INSTALL is root/wheel. - This target must be run from a suitable top-level directory. For example, running tests from `tests/sys/fs/tmpfs` won't work, but `tests/sys/fs` will, because `tests/sys/fs/tmpfs` relies on files installed by `tests/sys/fs`. - Running MK_INSTALL_AS_USER may introduce determinism issues. However, using it could identify deficiences in tests in terms of needing to be run as root, which are not properly articulated in the test requirements. - The doesn't negate the need for running "make installworld" and "make checkworld", etc. Again, this just is intended to simplify the dev->test->commit workflow. == Cleanup done == - CHECKDIR is removed; one can use "MK_MAKE_CHECK_USE_SANDBOX=no" to enable "legacy" (r295380) behavior. MFC after: 2 months Relnotes: yes (CHECKDIR removed; "make check" behavior changed) Requested by: jhb Reviewed by: arch (silence), testing (silence) Differential Revision: D11905
2017-08-14 19:03:05 +00:00
MAKE_CHECK_USE_SANDBOX \
MAN \
MANCOMPRESS \
NIS \
2014-04-29 14:52:39 +00:00
NLS \
OPENSSH \
PROFILE \
SSP \
Add limited sandbox capability to "make check" == Rationale == r295380 introduced "make check" and consolidated means for running test code in an attempt to simplify running tests. One could either install files/libraries/programs and run "make check", or run "make check" with an explicit CHECKDIR, e.g., `make check CHECKDIR=$(make -V.OBJDIR)``. One criticism that was received is that "make check" should be run with the intent of making dev->test->commit easier, which means that the target audience's workflow should be developers. One developer pattern available in other opensource projects is to run test code from a developer sandbox, instead of installing to a system. == Method == This approach is slightly different from the standard approach, in the sense that it builds and installs into a deterministic directory under .OBJDIR (as I call it, the "sandbox"), then runs "make check" against that. In the event the test run is successful, the deterministic directory is removed to save space. == Approach == bsd.lib.mk, bsd.prog.mk: To support this functionality, a new variable `HAS_TESTS` is being added. HAS_TESTS enables appropriate behavior with bsd.lib.mk and bsd.prog.mk, as follows: - Add "make check" as an available target from the directory. - Pass down appropriate variables via ${TESTS_ENV}, i.e., ${TESTS_LD_LIBRARY_PATH} and ${TESTS_PATH}. One should add "HAS_TESTS" to directories containing tests in them, e.g. from bin/sh/Makefile, HAS_TESTS= SUBDIR.${MK_TESTS}+= tests HAS_TESTS doesn't automatically add the tests subdirectory for flexibility reasons. bsd.opts.mk, src.opts.mk: - The knob ${MK_MAKE_CHECK_USE_SANDBOX} has been added, both to explicitly direct (internally) when to set a deterministic ${DESTDIR} and to also allow users to disable this behavior globally, i.e., via src.conf. - MK_TESTS has been promoted from src.opts.mk to bsd.opts.mk to leverage syntactic sugar for having MK_TESTS be a dependency for MK_MAKE_CHECK_USE_SANDBOX, but to also ensure that src.opts.mk isn't required to use suite.test.mk (which is a dependency of bsd.test.mk). suite.test.mk: - beforecheck behavior (when MK_MAKE_CHECK_USE_SANDBOX is enabled) is modified from a no-op to: -- Build. -- Run "make hierarchy" on the sandbox dir. -- Install the tests/files to the sandbox dir. - aftercheck behavior (when MK_MAKE_CHECK_USE_SANDBOX is enabled) is modified from a no-op to: -- Remove the sandbox dir. Again, because the dependency order set in bsd.test.mk is beforecheck -> check -> aftercheck, "make check" will not be run unless "beforecheck" completes successfully, and "aftercheck" will not be run unless "beforecheck" and "check" complete successfully. == Caveats == - This target must either be run with MK_INSTALL_AS_USER or as root. Otherwise it will fail when running "make install" as the default user/group for many makefiles when calling INSTALL is root/wheel. - This target must be run from a suitable top-level directory. For example, running tests from `tests/sys/fs/tmpfs` won't work, but `tests/sys/fs` will, because `tests/sys/fs/tmpfs` relies on files installed by `tests/sys/fs`. - Running MK_INSTALL_AS_USER may introduce determinism issues. However, using it could identify deficiences in tests in terms of needing to be run as root, which are not properly articulated in the test requirements. - The doesn't negate the need for running "make installworld" and "make checkworld", etc. Again, this just is intended to simplify the dev->test->commit workflow. == Cleanup done == - CHECKDIR is removed; one can use "MK_MAKE_CHECK_USE_SANDBOX=no" to enable "legacy" (r295380) behavior. MFC after: 2 months Relnotes: yes (CHECKDIR removed; "make check" behavior changed) Requested by: jhb Reviewed by: arch (silence), testing (silence) Differential Revision: D11905
2017-08-14 19:03:05 +00:00
TESTS \
TOOLCHAIN \
WARNS \
WERROR
__DEFAULT_NO_OPTIONS = \
BIND_NOW \
Add built-in ccache build support via WITH_CCACHE_BUILD option. ccache is mostly beneficial for frequent builds where -DNO_CLEAN is not used to achieve a safe pseudo-incremental build. This is explained in more detail upstream [1] [2]. It incurs about a 20%-28% hit to populate the cache, but with a full cache saves 30-50% in build times. When combined with the WITH_FAST_DEPEND feature it saves up to 65% since ccache does cache the resulting dependency file, which it does not do when using mkdep(1)/'CC -E'. Stats are provided at the end of this message. This removes the need to modify /etc/make.conf with the CC:= and CXX:= lines which conflicted with external compiler support [3] (causing the bootstrap compiler to not be built which lead to obscure failures [4]), incorrectly invoked ccache in various stages, required CCACHE_CPP2 to avoid Clang errors with parenthesis, and did not work with META_MODE. The option name was picked to match the existing option in ports. This feature is available for both in-src and out-of-src builds that use /usr/share/mk. Linking, assembly compiles, and pre-processing avoid using ccache since it is only overhead. ccache does nothing special in these modes, although there is no harm in calling it for them. CCACHE_COMPILERCHECK is set to 'content' when using the in-tree bootstrap compiler to hash the content of the compiler binary to determine if it should be a cache miss. For external compilers the 'mtime' option is used as it is more efficient and likely to be correct. Future work may optimize the 'content' check using the same checks as whether a bootstrap compiler is needed to be built. The CCACHE_CPP2 pessimization is currently default in our devel/ccache port due to Clang requiring it. Clang's -Wparentheses-equality, -Wtautological-compare, and -Wself-assign warnings do not mix well with compiling already-pre-processed code that may have expanded macros that trigger the warnings. GCC has so far not had this issue so it is allowed to disable the CCACHE_CPP2 default in our port. Sharing a cache between multiple checkouts, or systems, is explained in the ccache manual. Sharing a cache over NFS would likely not be worth it, but syncing cache directories between systems may be useful for an organization. There is also a memcached backend available [5]. Due to using an object directory outside of the source directory though you will need to ensure that both are in the same prefix and all users use the same layout. A possible working layout is as follows: Source: /some/prefix/src1 Source: /some/prefix/src2 Source: /some/prefix/src3 Objdir: /some/prefix/obj Environment: CCACHE_BASEDIR='${SRCTOP:H}' MAKEOBJDIRPREFIX='${SRCTOP:H}/obj' This will use src*/../obj as the MAKEOBJDIRPREFIX and tells ccache to replace all absolute paths to be relative. Using something like this is required due to -I and -o flags containing both SRC and OBJDIR absolute paths that ccache adds into its hash for the object without CCACHE_BASEDIR. distcc can be hooked into by setting CCACHE_PREFIX=/usr/local/bin/distcc. I have not personally tested this and assume it will not mix well with using the bootstrap compiler. The cache from buildworld can be reused in a subdir by first running 'make buildenv' (from r290424). Note that the cache is currently different depending on whether -j is used or not due to ccache enabling -fdiagnostics-color automatically if stderr is a TTY, which bmake only does if not using -j. The system I used for testing was: WITNESS Build options: -j20 WITH_LLDB=yes WITH_DEBUG_FILES=yes WITH_CCACHE_BUILD=yes DISK: ZFS 3-way mirror with very slow disks using SSD l2arc/log. The arc was fully populated with src tree files and ccache objects. 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 The WITH_FAST_DEPEND feature was used for comparison here as well to show the dramatic time savings with a full cache. buildworld: x buildworld-before + buildworld-ccache-empty * buildworld-ccache-full % buildworld-ccache-full-fastdep # buildworld-fastdep +-------------------------------------------------------------------------------+ |% * # +| |% * # +| |% * # xxx +| | |A | | A| | A | |A | | A | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 3744.13 3794.31 3752.25 3763.5633 26.935139 + 3 4519 4525.04 4520.73 4521.59 3.1104823 Difference at 95.0% confidence 758.027 +/- 43.4565 20.1412% +/- 1.15466% (Student's t, pooled s = 19.1726) * 3 1823.08 1827.2 1825.62 1825.3 2.0785572 Difference at 95.0% confidence -1938.26 +/- 43.298 -51.5007% +/- 1.15045% (Student's t, pooled s = 19.1026) % 3 1266.96 1279.37 1270.47 1272.2667 6.3971113 Difference at 95.0% confidence -2491.3 +/- 44.3704 -66.1952% +/- 1.17895% (Student's t, pooled s = 19.5758) # 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-ccache-empty * buildkernel-ccache-empty-fastdep % buildkernel-ccache-full # buildkernel-ccache-full-fastdep @ buildkernel-fastdep +-------------------------------------------------------------------------------+ |# @ % * | |# @ % * x + | |# @ % * xx ++| | MA | | MA| | A | | A | |A | | A | +-------------------------------------------------------------------------------+ N Min Max Median Avg Stddev x 3 571.57 573.94 571.79 572.43333 1.3094401 + 3 727.97 731.91 728.06 729.31333 2.2492295 Difference at 95.0% confidence 156.88 +/- 4.17129 27.4058% +/- 0.728695% (Student's t, pooled s = 1.84034) * 3 527.1 528.29 528.08 527.82333 0.63516402 Difference at 95.0% confidence -44.61 +/- 2.33254 -7.79305% +/- 0.407478% (Student's t, pooled s = 1.02909) % 3 400.4 401.05 400.62 400.69 0.3306055 Difference at 95.0% confidence -171.743 +/- 2.16453 -30.0023% +/- 0.378128% (Student's t, pooled s = 0.954969) # 3 201.94 203.34 202.28 202.52 0.73020545 Difference at 95.0% confidence -369.913 +/- 2.40293 -64.6212% +/- 0.419774% (Student's t, pooled s = 1.06015) @ 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) [1] https://ccache.samba.org/performance.html [2] http://www.mail-archive.com/ccache@lists.samba.org/msg00576.html [3] https://reviews.freebsd.org/D3484 [5] https://github.com/jrosdahl/ccache/pull/30 PR: 182944 [4] MFC after: 3 weeks Sponsored by: EMC / Isilon Storage Division Relnotes: yes
2015-11-08 00:50:18 +00:00
CCACHE_BUILD \
CTF \
INIT_ALL_PATTERN \
INIT_ALL_ZERO \
INSTALL_AS_USER \
MANSPLITPKG \
RETPOLINE \
STALE_STAGED
2015-05-26 21:52:57 +00:00
__DEFAULT_DEPENDENT_OPTIONS = \
Add limited sandbox capability to "make check" == Rationale == r295380 introduced "make check" and consolidated means for running test code in an attempt to simplify running tests. One could either install files/libraries/programs and run "make check", or run "make check" with an explicit CHECKDIR, e.g., `make check CHECKDIR=$(make -V.OBJDIR)``. One criticism that was received is that "make check" should be run with the intent of making dev->test->commit easier, which means that the target audience's workflow should be developers. One developer pattern available in other opensource projects is to run test code from a developer sandbox, instead of installing to a system. == Method == This approach is slightly different from the standard approach, in the sense that it builds and installs into a deterministic directory under .OBJDIR (as I call it, the "sandbox"), then runs "make check" against that. In the event the test run is successful, the deterministic directory is removed to save space. == Approach == bsd.lib.mk, bsd.prog.mk: To support this functionality, a new variable `HAS_TESTS` is being added. HAS_TESTS enables appropriate behavior with bsd.lib.mk and bsd.prog.mk, as follows: - Add "make check" as an available target from the directory. - Pass down appropriate variables via ${TESTS_ENV}, i.e., ${TESTS_LD_LIBRARY_PATH} and ${TESTS_PATH}. One should add "HAS_TESTS" to directories containing tests in them, e.g. from bin/sh/Makefile, HAS_TESTS= SUBDIR.${MK_TESTS}+= tests HAS_TESTS doesn't automatically add the tests subdirectory for flexibility reasons. bsd.opts.mk, src.opts.mk: - The knob ${MK_MAKE_CHECK_USE_SANDBOX} has been added, both to explicitly direct (internally) when to set a deterministic ${DESTDIR} and to also allow users to disable this behavior globally, i.e., via src.conf. - MK_TESTS has been promoted from src.opts.mk to bsd.opts.mk to leverage syntactic sugar for having MK_TESTS be a dependency for MK_MAKE_CHECK_USE_SANDBOX, but to also ensure that src.opts.mk isn't required to use suite.test.mk (which is a dependency of bsd.test.mk). suite.test.mk: - beforecheck behavior (when MK_MAKE_CHECK_USE_SANDBOX is enabled) is modified from a no-op to: -- Build. -- Run "make hierarchy" on the sandbox dir. -- Install the tests/files to the sandbox dir. - aftercheck behavior (when MK_MAKE_CHECK_USE_SANDBOX is enabled) is modified from a no-op to: -- Remove the sandbox dir. Again, because the dependency order set in bsd.test.mk is beforecheck -> check -> aftercheck, "make check" will not be run unless "beforecheck" completes successfully, and "aftercheck" will not be run unless "beforecheck" and "check" complete successfully. == Caveats == - This target must either be run with MK_INSTALL_AS_USER or as root. Otherwise it will fail when running "make install" as the default user/group for many makefiles when calling INSTALL is root/wheel. - This target must be run from a suitable top-level directory. For example, running tests from `tests/sys/fs/tmpfs` won't work, but `tests/sys/fs` will, because `tests/sys/fs/tmpfs` relies on files installed by `tests/sys/fs`. - Running MK_INSTALL_AS_USER may introduce determinism issues. However, using it could identify deficiences in tests in terms of needing to be run as root, which are not properly articulated in the test requirements. - The doesn't negate the need for running "make installworld" and "make checkworld", etc. Again, this just is intended to simplify the dev->test->commit workflow. == Cleanup done == - CHECKDIR is removed; one can use "MK_MAKE_CHECK_USE_SANDBOX=no" to enable "legacy" (r295380) behavior. MFC after: 2 months Relnotes: yes (CHECKDIR removed; "make check" behavior changed) Requested by: jhb Reviewed by: arch (silence), testing (silence) Differential Revision: D11905
2017-08-14 19:03:05 +00:00
MAKE_CHECK_USE_SANDBOX/TESTS \
STAGING_MAN/STAGING \
STAGING_PROG/STAGING \
STALE_STAGED/STAGING \
#
# Default to disabling PIE on 32-bit architectures. The small address space
# means that ASLR is of limited effectiveness, and it may cause issues with
# some memory-hungry workloads.
#
.if ${MACHINE_ARCH} == "armv6" || ${MACHINE_ARCH} == "armv7" \
|| ${MACHINE_ARCH} == "i386" || ${MACHINE_ARCH} == "mips" \
|| ${MACHINE_ARCH} == "mipsel" || ${MACHINE_ARCH} == "mipselhf" \
|| ${MACHINE_ARCH} == "mipshf" || ${MACHINE_ARCH} == "mipsn32" \
|| ${MACHINE_ARCH} == "mipsn32el" || ${MACHINE_ARCH} == "powerpc" \
|| ${MACHINE_ARCH} == "powerpcspe"
__DEFAULT_NO_OPTIONS+= PIE
.else
__DEFAULT_YES_OPTIONS+=PIE
.endif
.include <bsd.mkopt.mk>
.if ${MK_INIT_ALL_PATTERN} == "yes" && ${MK_INIT_ALL_ZERO} == "yes"
.warning WITH_INIT_ALL_PATTERN and WITH_INIT_ALL_ZERO are mutually exclusive.
.endif
#
# Supported NO_* options (if defined, MK_* will be forced to "no",
# regardless of user's setting).
#
# These are transitional and will disappaer in the FreeBSD 12.
#
.for var in \
CTF \
DEBUG_FILES \
INSTALLLIB \
MAN \
PROFILE \
WARNS \
WERROR
.if defined(NO_${var})
.error "NO_${var} is defined, but deprecated. Please use MK_${var}=no instead."
MK_${var}:=no
.endif
.endfor
.include <bsd.cpu.mk>
.endif # !_WITHOUT_SRCCONF
.endif