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| author | Tobias Hieta <tobias@hieta.se> | 2023-02-13 08:56:56 +0100 |
|---|---|---|
| committer | Tobias Hieta <tobias@hieta.se> | 2023-02-13 08:57:19 +0100 |
| commit | fff762d674c34c56d82f71250df2ac3652992049 (patch) | |
| tree | 4e4bc90dd82e0293f40f5c570ec8a459dbfba6df /llvm/CMakeLists.txt | |
| parent | 240c6f2643991b1fe69c03ddcc8be0104e699327 (diff) | |
| download | llvm-fff762d674c34c56d82f71250df2ac3652992049.tar.gz | |
Revert "[CMake] Remove custom ccache CMake logic"
This reverts commit 0fad18c44a14b909a1aa47165021273d4c10a665.
We need bots to be updated first.
Diffstat (limited to 'llvm/CMakeLists.txt')
| -rw-r--r-- | llvm/CMakeLists.txt | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt index 5aedf28b0435..8e6b738efd7e 100644 --- a/llvm/CMakeLists.txt +++ b/llvm/CMakeLists.txt @@ -233,8 +233,38 @@ if (LLVM_ENABLE_PROJECTS_USED OR NOT LLVM_ENABLE_PROJECTS STREQUAL "") endif() unset(SHOULD_ENABLE_PROJECT) -if(DEFINED LLVM_CCACHE_BUILD) - message(FATAL_ERROR "-DLLVM_CACHE_BUILD=ON is deprecated! Use to the following options instead:\n-DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache") +# Build llvm with ccache if the package is present +set(LLVM_CCACHE_BUILD OFF CACHE BOOL "Set to ON for a ccache enabled build") +if(LLVM_CCACHE_BUILD) + find_program(CCACHE_PROGRAM ccache) + if(CCACHE_PROGRAM) + set(LLVM_CCACHE_MAXSIZE "" CACHE STRING "Size of ccache") + set(LLVM_CCACHE_DIR "" CACHE STRING "Directory to keep ccached data") + set(LLVM_CCACHE_PARAMS "CCACHE_CPP2=yes CCACHE_HASHDIR=yes" + CACHE STRING "Parameters to pass through to ccache") + + if(NOT CMAKE_SYSTEM_NAME MATCHES "Windows") + set(CCACHE_PROGRAM "${LLVM_CCACHE_PARAMS} ${CCACHE_PROGRAM}") + if (LLVM_CCACHE_MAXSIZE) + set(CCACHE_PROGRAM "CCACHE_MAXSIZE=${LLVM_CCACHE_MAXSIZE} ${CCACHE_PROGRAM}") + endif() + if (LLVM_CCACHE_DIR) + set(CCACHE_PROGRAM "CCACHE_DIR=${LLVM_CCACHE_DIR} ${CCACHE_PROGRAM}") + endif() + set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ${CCACHE_PROGRAM}) + else() + if(LLVM_CCACHE_MAXSIZE OR LLVM_CCACHE_DIR OR + NOT LLVM_CCACHE_PARAMS MATCHES "CCACHE_CPP2=yes CCACHE_HASHDIR=yes") + message(FATAL_ERROR "Ccache configuration through CMake is not supported on Windows. Please use environment variables.") + endif() + # RULE_LAUNCH_COMPILE should work with Ninja but currently has issues + # with cmd.exe and some MSVC tools other than cl.exe + set(CMAKE_C_COMPILER_LAUNCHER ${CCACHE_PROGRAM}) + set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_PROGRAM}) + endif() + else() + message(FATAL_ERROR "Unable to find the program ccache. Set LLVM_CCACHE_BUILD to OFF") + endif() endif() set(LLVM_EXTERNAL_PROJECT_BUILD_TOOL_ARGS "" CACHE STRING @@ -250,8 +280,8 @@ if(LLVM_DEPENDENCY_DEBUGGING) if(NOT CMAKE_HOST_APPLE) message(FATAL_ERROR "Dependency debugging is only currently supported on Darwin hosts.") endif() - if(DEFINED CMAKE_CXX_COMPILER_LAUNCHER) - message(FATAL_ERROR "Cannot enable dependency debugging while using a compiler launcher like ccache.") + if(LLVM_CCACHE_BUILD) + message(FATAL_ERROR "Cannot enable dependency debugging while using ccache.") endif() endif() |