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The branch, next has been updated via d2a5bf08e9c46931b79307ed616c8ac4a61ae09d (commit) via a488216886d67e7c964a5670f0cd0165575ba2bb (commit) from b0f86b5f5abfb50a4c93ec93e2f9b82ea7e16733 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=d2a5bf08e9c46931b79307ed616c8ac4a61ae09d commit d2a5bf08e9c46931b79307ed616c8ac4a61ae09d Merge: b0f86b5 a488216 Author: Brad King <brad.k...@kitware.com> AuthorDate: Wed Jul 20 09:57:48 2016 -0400 Commit: CMake Topic Stage <kwro...@kitware.com> CommitDate: Wed Jul 20 09:57:48 2016 -0400 Merge topic 'ninja-target-deps' into next a4882168 Ninja: Fix inter-target order-only dependencies of custom commands https://cmake.org/gitweb?p=cmake.git;a=commitdiff;h=a488216886d67e7c964a5670f0cd0165575ba2bb commit a488216886d67e7c964a5670f0cd0165575ba2bb Author: Brad King <brad.k...@kitware.com> AuthorDate: Wed Jul 20 09:32:32 2016 -0400 Commit: Brad King <brad.k...@kitware.com> CommitDate: Wed Jul 20 09:57:32 2016 -0400 Ninja: Fix inter-target order-only dependencies of custom commands Custom command dependencies are followed for each target's source files and add their transitive closure to the corresponding target. This means that when a custom command in one target has a dependency on a custom command in another target, both will appear in the dependent target's sources. For the Makefile, VS IDE, and Xcode generators this is not a problem because each target gets its own independent build system that is evaluated in target dependency order. By the time the dependent target is built the custom command that belongs to one of its dependencies will already have been brought up to date. For the Ninja generator we need to generate a monolithic build system covering all targets so we can have only one copy of a custom command. This means that we need to reconcile the target-level ordering dependencies from its appearance in multiple targets to include only the least-dependent common set. This is done by computing the set intersection of the dependencies of all the targets containing a custom command. However, we previously included only the direct dependencies so any target-level dependency not directly added to all targets into which a custom command propagates was discarded. Fix this by computing the transitive closure of dependencies for each target and then intersecting those sets. That will get the common set of dependencies. Also add a test to cover a case in which the incorrectly dropped target ordering dependencies would fail. diff --git a/Source/cmGlobalNinjaGenerator.cxx b/Source/cmGlobalNinjaGenerator.cxx index 91f08e6..a2e0a2e 100644 --- a/Source/cmGlobalNinjaGenerator.cxx +++ b/Source/cmGlobalNinjaGenerator.cxx @@ -493,6 +493,8 @@ void cmGlobalNinjaGenerator::Generate() this->OpenBuildFileStream(); this->OpenRulesFileStream(); + this->TargetDependsClosures.clear(); + this->InitOutputPathPrefix(); this->TargetAll = this->NinjaOutputPath("all"); this->CMakeCacheFile = this->NinjaOutputPath("CMakeCache.txt"); @@ -905,6 +907,42 @@ void cmGlobalNinjaGenerator::AppendTargetDepends( } } +void cmGlobalNinjaGenerator::AppendTargetDependsClosure( + cmGeneratorTarget const* target, cmNinjaDeps& outputs) +{ + TargetDependsClosureMap::iterator i = + this->TargetDependsClosures.find(target); + if (i == this->TargetDependsClosures.end()) { + TargetDependsClosureMap::value_type e( + target, std::set<cmGeneratorTarget const*>()); + i = this->TargetDependsClosures.insert(e).first; + this->ComputeTargetDependsClosure(target, i->second); + } + std::set<cmGeneratorTarget const*> const& targets = i->second; + cmNinjaDeps outs; + for (std::set<cmGeneratorTarget const*>::iterator ti = targets.begin(); + ti != targets.end(); ++ti) { + this->AppendTargetOutputs(*ti, outs); + } + std::sort(outs.begin(), outs.end()); + outputs.insert(outputs.end(), outs.begin(), outs.end()); +} + +void cmGlobalNinjaGenerator::ComputeTargetDependsClosure( + cmGeneratorTarget const* target, std::set<cmGeneratorTarget const*>& depends) +{ + cmTargetDependSet const& targetDeps = this->GetTargetDirectDepends(target); + for (cmTargetDependSet::const_iterator i = targetDeps.begin(); + i != targetDeps.end(); ++i) { + if ((*i)->GetType() == cmState::INTERFACE_LIBRARY) { + continue; + } + if (depends.insert(*i).second) { + this->ComputeTargetDependsClosure(*i, depends); + } + } +} + void cmGlobalNinjaGenerator::AddTargetAlias(const std::string& alias, cmGeneratorTarget* target) { diff --git a/Source/cmGlobalNinjaGenerator.h b/Source/cmGlobalNinjaGenerator.h index c74973e..52fa5c9 100644 --- a/Source/cmGlobalNinjaGenerator.h +++ b/Source/cmGlobalNinjaGenerator.h @@ -301,6 +301,8 @@ public: cmNinjaDeps& outputs); void AppendTargetDepends(cmGeneratorTarget const* target, cmNinjaDeps& outputs); + void AppendTargetDependsClosure(cmGeneratorTarget const* target, + cmNinjaDeps& outputs); void AddDependencyToAll(cmGeneratorTarget* target); void AddDependencyToAll(const std::string& input); @@ -361,6 +363,10 @@ private: void WriteTargetClean(std::ostream& os); void WriteTargetHelp(std::ostream& os); + void ComputeTargetDependsClosure( + cmGeneratorTarget const* target, + std::set<cmGeneratorTarget const*>& depends); + std::string ninjaCmd() const; /// The file containing the build statement. (the relationship of the @@ -410,6 +416,11 @@ private: typedef std::map<std::string, cmGeneratorTarget*> TargetAliasMap; TargetAliasMap TargetAliases; + typedef std::map<cmGeneratorTarget const*, + std::set<cmGeneratorTarget const*> > + TargetDependsClosureMap; + TargetDependsClosureMap TargetDependsClosures; + std::string NinjaCommand; std::string NinjaVersion; diff --git a/Source/cmLocalNinjaGenerator.cxx b/Source/cmLocalNinjaGenerator.cxx index 0f488a6..46d7e18 100644 --- a/Source/cmLocalNinjaGenerator.cxx +++ b/Source/cmLocalNinjaGenerator.cxx @@ -450,13 +450,14 @@ void cmLocalNinjaGenerator::WriteCustomCommandBuildStatements() std::set<cmGeneratorTarget*>::iterator j = i->second.begin(); assert(j != i->second.end()); std::vector<std::string> ccTargetDeps; - this->AppendTargetDepends(*j, ccTargetDeps); + this->GetGlobalNinjaGenerator()->AppendTargetDependsClosure(*j, + ccTargetDeps); std::sort(ccTargetDeps.begin(), ccTargetDeps.end()); ++j; for (; j != i->second.end(); ++j) { std::vector<std::string> jDeps, depsIntersection; - this->AppendTargetDepends(*j, jDeps); + this->GetGlobalNinjaGenerator()->AppendTargetDependsClosure(*j, jDeps); std::sort(jDeps.begin(), jDeps.end()); std::set_intersection(ccTargetDeps.begin(), ccTargetDeps.end(), jDeps.begin(), jDeps.end(), diff --git a/Tests/RunCMake/add_custom_target/RunCMakeTest.cmake b/Tests/RunCMake/add_custom_target/RunCMakeTest.cmake index 92c4a38..6c4e91b 100644 --- a/Tests/RunCMake/add_custom_target/RunCMakeTest.cmake +++ b/Tests/RunCMake/add_custom_target/RunCMakeTest.cmake @@ -4,3 +4,17 @@ run_cmake(NoArguments) run_cmake(BadTargetName) run_cmake(ByproductsNoCommand) run_cmake(UsesTerminalNoCommand) + +function(run_TargetOrder) + # Use a single build tree for a few tests without cleaning. + set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/TargetOrder-build) + set(RunCMake_TEST_NO_CLEAN 1) + file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}") + file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}") + run_cmake(TargetOrder) + if(RunCMake_GENERATOR STREQUAL "Ninja") + set(build_flags -j 1 -v) + endif() + run_cmake_command(TargetOrder-build ${CMAKE_COMMAND} --build . -- ${build_flags}) +endfunction() +run_TargetOrder() diff --git a/Tests/RunCMake/add_custom_target/TargetOrder.cmake b/Tests/RunCMake/add_custom_target/TargetOrder.cmake new file mode 100644 index 0000000..21669c0 --- /dev/null +++ b/Tests/RunCMake/add_custom_target/TargetOrder.cmake @@ -0,0 +1,31 @@ +# Add a target that requires step1 to run first but enforces +# it only by target-level ordering dependency. +add_custom_command( + OUTPUT step2.txt + COMMAND ${CMAKE_COMMAND} -E copy step1.txt step2.txt + ) +add_custom_target(step2 DEPENDS step2.txt) +add_dependencies(step2 step1) + +# Add a target that requires step1 and step2 to work, +# only depends on step1 transitively through step2, but +# also gets a copy of step2's custom command. +# The Ninja generator in particular must be careful with +# this case because it needs to compute the proper set of +# target ordering dependencies for the step2 custom command +# even though it appears in both the step2 and step3 +# targets due to dependency propagation. +add_custom_command( + OUTPUT step3.txt + COMMAND ${CMAKE_COMMAND} -E copy step1.txt step3-1.txt + COMMAND ${CMAKE_COMMAND} -E copy step2.txt step3.txt + DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/step2.txt + ) +add_custom_target(step3 ALL DEPENDS step3.txt) +add_dependencies(step3 step2) + +# We want this target to always run first. Add it last so +# that serial builds require dependencies to order it first. +add_custom_target(step1 + COMMAND ${CMAKE_COMMAND} -E touch step1.txt + ) ----------------------------------------------------------------------- Summary of changes: Source/cmGlobalNinjaGenerator.cxx | 38 ++++++++++++++++++++ Source/cmGlobalNinjaGenerator.h | 11 ++++++ Source/cmLocalNinjaGenerator.cxx | 5 +-- .../RunCMake/add_custom_target/RunCMakeTest.cmake | 14 ++++++++ Tests/RunCMake/add_custom_target/TargetOrder.cmake | 31 ++++++++++++++++ 5 files changed, 97 insertions(+), 2 deletions(-) create mode 100644 Tests/RunCMake/add_custom_target/TargetOrder.cmake hooks/post-receive -- CMake _______________________________________________ Cmake-commits mailing list Cmake-commits@cmake.org http://public.kitware.com/mailman/listinfo/cmake-commits