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| author | Brad King <brad.king@kitware.com> | 2019-06-19 12:20:25 (GMT) |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2019-06-19 12:20:25 (GMT) |
| commit | c54fc8213bfbd33b9584188b90cd494e2bf515db (patch) | |
| tree | 07536d3e2c917ed35f39bfaa45ab1eff0e886b47 | |
| parent | f3e9a6ff62f6f58cd661dd447c22a01c50f6f4ad (diff) | |
| parent | 9e99a95c7db5be8c6b979b0170ab4cf78bb32307 (diff) | |
| download | CMake-c54fc8213bfbd33b9584188b90cd494e2bf515db.zip CMake-c54fc8213bfbd33b9584188b90cd494e2bf515db.tar.gz CMake-c54fc8213bfbd33b9584188b90cd494e2bf515db.tar.bz2 | |
Merge branch 'android-pie-cmp0083' into release-3.14
Merge-request: !3459
| -rw-r--r-- | Help/policy/CMP0083.rst | 6 | ||||
| -rw-r--r-- | Modules/Platform/Android/abi-common.cmake | 20 |
2 files changed, 26 insertions, 0 deletions
diff --git a/Help/policy/CMP0083.rst b/Help/policy/CMP0083.rst index 32acf1f..e0b09cf 100644 --- a/Help/policy/CMP0083.rst +++ b/Help/policy/CMP0083.rst @@ -28,6 +28,12 @@ This policy was introduced in CMake version 3.14. Use the Unlike most policies, CMake version |release| does not warn when this policy is not set and simply uses ``OLD`` behavior. +.. Note:: + + Android platform has a special handling of ``PIE`` so it is not required + to use the :module:`CheckPIESupported` module to ensure flags are passed to + the linker. + .. include:: DEPRECATED.txt Examples diff --git a/Modules/Platform/Android/abi-common.cmake b/Modules/Platform/Android/abi-common.cmake index a0b47f4..6bce3c7 100644 --- a/Modules/Platform/Android/abi-common.cmake +++ b/Modules/Platform/Android/abi-common.cmake @@ -12,6 +12,26 @@ if(NOT DEFINED CMAKE_POSITION_INDEPENDENT_CODE set(CMAKE_POSITION_INDEPENDENT_CODE ON) endif() +cmake_policy(GET CMP0083 _CMP0083) +if(_CMP0083 STREQUAL NEW) + # PIE Flags are managed by compiler configuration files + if(CMAKE_SYSTEM_VERSION VERSION_GREATER_EQUAL 16) + # ensure PIE flags are passed to the linker + set(CMAKE_C_LINK_PIE_SUPPORTED YES CACHE INTERNAL "PIE (C)") + set(CMAKE_CXX_LINK_PIE_SUPPORTED YES CACHE INTERNAL "PIE (CXX)") + if(CMAKE_SYSTEM_VERSION VERSION_GREATER_EQUAL 21) + # no PIE executable are no longer supported + set(CMAKE_C_LINK_NO_PIE_SUPPORTED NO CACHE INTERNAL "NO_PIE (C)") + set(CMAKE_CXX_LINK_NO_PIE_SUPPORTED NO CACHE INTERNAL "NO_PIE (CXX)") + endif() + endif() +else() + if(CMAKE_POSITION_INDEPENDENT_CODE) + string(APPEND _ANDROID_ABI_INIT_EXE_LDFLAGS " -fPIE -pie") + endif() +endif() +unset(_CMP0083) + string(APPEND _ANDROID_ABI_INIT_EXE_LDFLAGS " -Wl,--gc-sections") if(NOT _ANDROID_ABI_INIT_EXE_LDFLAGS_NO_nocopyreloc) |