97bca2f9fa
The NDK build system now uses only a single toolchain in
<ndk>/toolchains/llvm/prebuilt/<host>
Its compilers are always `bin/{clang,clang++}` and its binutils are
always `bin/<triple>-*`. It is a standalone toolchain:
* The Anrdoid API level is specified at the end of `--target=`.
* The standard library may be specified via `-stdlib=`.
* No need to pass system includes or libraries explicitly.
* No need to pass `--sysroot` or `-gcc-toolchain`.
Teach CMake to recognize NDK versions that have a unified
toolchain with its own sysroot and use the above approach.
Fixes: #18739
40 lines
1.4 KiB
CMake
40 lines
1.4 KiB
CMake
string(APPEND _ANDROID_ABI_INIT_CFLAGS
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" -funwind-tables"
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" -no-canonical-prefixes"
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)
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if(CMAKE_ANDROID_NDK AND NOT CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED AND NOT CMAKE_ANDROID_NDK_DEPRECATED_HEADERS)
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string(APPEND _ANDROID_ABI_INIT_CFLAGS " -D__ANDROID_API__=${CMAKE_SYSTEM_VERSION}")
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endif()
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if(NOT DEFINED CMAKE_POSITION_INDEPENDENT_CODE
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AND NOT CMAKE_SYSTEM_VERSION VERSION_LESS 16)
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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endif()
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cmake_policy(GET CMP0083 _CMP0083)
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if(_CMP0083 STREQUAL NEW)
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# PIE Flags are managed by compiler configuration files
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if(CMAKE_SYSTEM_VERSION VERSION_GREATER_EQUAL 16)
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# ensure PIE flags are passed to the linker
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set(CMAKE_C_LINK_PIE_SUPPORTED YES CACHE INTERNAL "PIE (C)")
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set(CMAKE_CXX_LINK_PIE_SUPPORTED YES CACHE INTERNAL "PIE (CXX)")
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if(CMAKE_SYSTEM_VERSION VERSION_GREATER_EQUAL 21)
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# no PIE executable are no longer supported
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set(CMAKE_C_LINK_NO_PIE_SUPPORTED NO CACHE INTERNAL "NO_PIE (C)")
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set(CMAKE_CXX_LINK_NO_PIE_SUPPORTED NO CACHE INTERNAL "NO_PIE (CXX)")
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endif()
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endif()
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else()
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if(CMAKE_POSITION_INDEPENDENT_CODE)
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string(APPEND _ANDROID_ABI_INIT_EXE_LDFLAGS " -fPIE -pie")
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endif()
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endif()
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unset(_CMP0083)
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string(APPEND _ANDROID_ABI_INIT_EXE_LDFLAGS " -Wl,--gc-sections")
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if(NOT _ANDROID_ABI_INIT_EXE_LDFLAGS_NO_nocopyreloc)
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string(APPEND _ANDROID_ABI_INIT_EXE_LDFLAGS " -Wl,-z,nocopyreloc")
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endif()
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