b4a5074609
Add a SUBDIR_PARALLEL option to bsd.subdir.mk, to allow make to process all the SUBDIR entries in parallel, instead of serially. Apply this option to a selected number of Makefiles, which can greatly speed up the build on multi-core machines, when using make -j. This can be extended to more Makefiles later on, whenever they are verified to work correctly with parallel building. I tested this on a 24-core machine, with make -j48 buildworld (N = 6): before stddev after stddev ======= ====== ======= ====== real time 1741.1 16.5 959.8 2.7 user time 12468.7 16.4 14393.0 16.8 sys time 1825.0 54.8 2110.6 22.8 (user+sys)/real 8.2 17.1 E.g. the build was approximately 45% faster in real time. On machines with less cores, or with lower -j settings, the speedup will not be as impressive. But at least you can now almost max out a machine with buildworld! Submitted by: jilles MFC r263833: Enable parallel building for gnu/usr.bin and usr.bin/clang too.
153 lines
3.3 KiB
Makefile
153 lines
3.3 KiB
Makefile
# $FreeBSD$
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.include <bsd.own.mk>
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.if !make(install)
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.if !defined(EARLY_BUILD)
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.if defined(MK_CLANG_FULL) && ${MK_CLANG_FULL} != "no"
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_libclangstaticanalyzer= \
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libclangstaticanalyzercheckers \
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libclangstaticanalyzercore \
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libclangstaticanalyzerfrontend
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_libclangarcmigrate= \
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libclangarcmigrate
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.endif # MK_CLANG_FULL
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.if (defined(MK_CLANG_FULL) && ${MK_CLANG_FULL} != "no") || \
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(defined(MK_LLDB) && ${MK_LLDB} != "no")
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_libclangrewriter= \
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libclangrewritecore \
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libclangrewritefrontend
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.endif # (MK_CLANG_FULL || MK_LLDB)
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.endif # !EARLY_BUILD
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SUBDIR= libclanganalysis \
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${_libclangarcmigrate} \
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libclangast \
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libclangbasic \
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libclangcodegen \
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libclangdriver \
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libclangedit \
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libclangfrontend \
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libclangfrontendtool \
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libclanglex \
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libclangparse \
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${_libclangrewriter} \
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libclangsema \
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libclangserialization \
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${_libclangstaticanalyzer} \
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\
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libllvmanalysis \
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libllvmasmparser \
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libllvmasmprinter \
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libllvmbitreader \
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libllvmbitwriter \
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libllvmcodegen \
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libllvmcore \
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libllvminstcombine \
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libllvminstrumentation \
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libllvmipa \
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libllvmipo \
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libllvmirreader \
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libllvmlinker \
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libllvmmc \
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libllvmmcparser \
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libllvmobjcarcopts \
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libllvmobject \
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libllvmoption \
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libllvmscalaropts \
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libllvmselectiondag \
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libllvmsupport \
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libllvmtablegen \
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libllvmtarget \
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libllvmtransformutils \
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libllvmvectorize \
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\
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libllvmarmasmparser \
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libllvmarmcodegen \
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libllvmarmdesc \
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libllvmarmdisassembler \
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libllvmarminfo \
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libllvmarminstprinter \
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libllvmmipsasmparser \
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libllvmmipscodegen \
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libllvmmipsdesc \
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libllvmmipsdisassembler \
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libllvmmipsinfo \
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libllvmmipsinstprinter \
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libllvmpowerpcasmparser \
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libllvmpowerpccodegen \
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libllvmpowerpcdesc \
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libllvmpowerpcinfo \
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libllvmpowerpcinstprinter \
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libllvmsparcasmparser \
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libllvmsparccodegen \
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libllvmsparcdesc \
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libllvmsparcdisassembler \
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libllvmsparcinfo \
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libllvmsparcinstprinter \
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libllvmx86asmparser \
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libllvmx86codegen \
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libllvmx86desc \
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libllvmx86disassembler \
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libllvmx86info \
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libllvmx86instprinter \
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libllvmx86utils
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.if ${MK_CLANG_EXTRAS} != "no"
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SUBDIR+=libllvmdebuginfo
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.endif # MK_CLANG_EXTRAS
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.if ${MK_CLANG_EXTRAS} != "no" || ${MK_LLDB} != "no"
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SUBDIR+=libllvmexecutionengine \
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libllvminterpreter \
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libllvmjit \
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libllvmmcdisassembler \
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libllvmmcjit \
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libllvmruntimedyld
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.endif # MK_CLANG_EXTRAS | LLDB
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.if !defined(EARLY_BUILD) && ${MK_LLDB} != "no"
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SUBDIR+=liblldb \
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\
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liblldbAPI \
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liblldbBreakpoint \
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liblldbCommands \
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liblldbCore \
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liblldbDataFormatters \
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liblldbExpression \
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liblldbHostCommon \
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liblldbHostFreeBSD \
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liblldbInterpreter \
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liblldbSymbol \
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liblldbTarget \
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liblldbUtility \
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\
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liblldbPluginABISysV_x86_64 \
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liblldbPluginCXXItaniumABI \
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liblldbPluginDisassemblerLLVM \
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liblldbPluginDynamicLoaderStatic \
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liblldbPluginDynamicLoaderPosixDYLD \
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liblldbPluginInstructionARM \
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liblldbPluginObjectContainerBSDArchive \
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liblldbPluginObjectFileELF \
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liblldbPluginPlatformFreeBSD \
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liblldbPluginPlatformGDB \
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liblldbPluginProcessElfCore \
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liblldbPluginProcessFreeBSD \
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liblldbPluginProcessGDBRemote \
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liblldbPluginProcessPOSIX \
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liblldbPluginProcessUtility \
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liblldbPluginSymbolFileDWARF \
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liblldbPluginSymbolFileSymtab \
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liblldbPluginSymbolVendorELF \
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liblldbPluginUnwindAssemblyInstEmulation \
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liblldbPluginUnwindAssemblyX86
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.endif # !EARLY_BUILD && MK_LLDB
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.endif # !make(install)
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SUBDIR+= include
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SUBDIR_PARALLEL=
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.include <bsd.subdir.mk>
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