NCNN 移动端使用GPU坑
#错误信息
error: cannot use ‘throw’ with exceptions disabled
error: use of typeid requires -frtti
Android: ncnn gpu运行配置方法
1、下载编译好的lib
https://github.com/Tencent/ncnn/releases
ncnn-android-vulkan-lib.zip
2、在CMakelists.txt 文件中加入
set(ncnn_DIR
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{LIBRARY_DIRS}/
LIBRARYD?IRS/{ANDROID_ABI}/lib/cmake/ncnn)
find_package(ncnn REQUIRED)
3、修改 build.gradle
externalNativeBuild {
cmake {
cppFlags “-frtti -fexceptions -ljnigraphics "
abiFilters ‘armeabi-v7a’, ‘arm64-v8a’
arguments “-DANDROID_STL=c++_shared”,”-DCMAKE_BUILD_TYPE=release" ,"-DANDROID_PLATFORM=android-24" //
}
}
4、编译，fuck 发现加入-frtti -fexceptions 选项后 怎么编译都还是报错.
error: cannot use ‘throw’ with exceptions disabled
error: use of typeid requires -frtti
解决办法：
编辑 .\ncnn-20211208-android-vulkan\cmake\ncnn\ncnn.cmake文件
# Create imported target ncnn
add_library(ncnn STATIC IMPORTED)
set_target_properties(ncnn PROPERTIES
INTERFACE_COMPILE_OPTIONS "-fno-rtti;-fno-exceptions"
INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include/ncnn"
INTERFACE_LINK_LIBRARIES "Threads::Threads;Vulkan::Vulkan;\$<LINK_ONLY:glslang>;\$<LINK_ONLY:SPIRV>;android;jnigraphics;log"
INTERFACE_POSITION_INDEPENDENT_CODE "ON"
)
将 INTERFACE_COMPILE_OPTIONS “-fno-rtti;-fno-exceptions” 这句删掉。
编译成功~！！！耶耶耶
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