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| author | Chris Bieneman <beanz@apple.com> | 2016-02-12 21:36:55 +0000 |
|---|---|---|
| committer | Chris Bieneman <beanz@apple.com> | 2016-02-12 21:36:55 +0000 |
| commit | cff69f62d5b5b6b7e94a8ce793452b8e193c2a53 (patch) | |
| tree | 75297393a28484bdfaa54d22f192a21e46c42f49 /utils/perf-training | |
| parent | 5c41d3a5f89280bc0825a054e4add6ab929d48fe (diff) | |
[CMake] Improve the clang order-file generation workflow
Summary:
This commit re-lands r259862. The underlying cause of the build breakage was an incorrectly written capabilities test. In tools/Driver/CMakeLists.txt I was attempting to check if a linker flag worked, the test was passing it to the compiler, not the linker. CMake doesn't have a linker test, so we have a hand-rolled one.
Original Patch Review: http://reviews.llvm.org/D16896
Original Summary:
With this change generating clang order files using dtrace uses the following workflow:
cmake <whatever options you want>
ninja generate-order-file
ninja clang
This patch works by setting a default path to the order file (which can be overridden by the user). If the order file doesn't exist during configuration CMake will create an empty one.
CMake then ties up the dependencies between the clang link job and the order file, and generate-order-file overwrites CLANG_ORDER_FILE with the new order file.
Reviewers: bogner
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D16999
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@260742 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/perf-training')
| -rw-r--r-- | utils/perf-training/CMakeLists.txt | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/utils/perf-training/CMakeLists.txt b/utils/perf-training/CMakeLists.txt index 32f7c84555..f8647a0e44 100644 --- a/utils/perf-training/CMakeLists.txt +++ b/utils/perf-training/CMakeLists.txt @@ -55,9 +55,8 @@ if(DTRACE) COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/perf-helper.py clean ${CMAKE_CURRENT_BINARY_DIR} dtrace COMMENT "Clearing old dtrace data") - add_custom_target(generate-order-file - COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/perf-helper.py gen-order-file --binary $<TARGET_FILE:clang> --output ${CMAKE_CURRENT_BINARY_DIR}/clang.order ${CMAKE_CURRENT_BINARY_DIR} + COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/perf-helper.py gen-order-file --binary $<TARGET_FILE:clang> --output ${CLANG_ORDER_FILE} ${CMAKE_CURRENT_BINARY_DIR} COMMENT "Generating order file" DEPENDS generate-dtrace-logs) endif() |