[FEATURE] Add ability to package all-in-one static library

[Officeyutong]

Add ability to package all bpftime static library archives into a single archive.

Reference: https://github.com/WasmEdge/WasmEdge/blob/f5cf26c66e4bbb9bca00497fce5c814aac7d56fa/lib/api/CMakeLists.txt#L39

Hint:

• use ${CMAKE_AR} to unarchive each individual to temporary directory, then use ar to repack them into a single archive
• libbpf and spdlog and other dependencies are also needed

[sinduku]

hi @Officeyutong @yunwei37 would like to take a crack at this, could you please assign this to me

[yunwei37]

OK! Thanks!

[Officeyutong]

hi @Officeyutong @yunwei37 would like to take a crack at this, could you please assign this to me

Hi, how's going on now?

[hp77-creator]

Folks, Can I try this? @Officeyutong @yunwei37 ?

[Officeyutong]

Reference

Sure!

[hp77-creator]

hey @Officeyutong need a bit of guidance here, I checked out the function created in the CMake file that you linked in the first comment, I just have a question, where shall we make the archives? should it be at each add_library level since we have multiple sub-directories and libraries or should it be just at the vm or runtime level?

[Officeyutong]

hey @Officeyutong need a bit of guidance here, I checked out the function created in the CMake file that you linked in the first comment, I just have a question, where shall we make the archives? should it be at each add_library level since we have multiple sub-directories and libraries or should it be just at the vm or runtime level?

The purpose is to pack an archive so that if a user want to use bpftime, he just need to link that archive and the standard library. So we need to pack the following libraries:

• All static libraries defined in bpftime, such as runtime, vm-bpf, frida_uprobe_attach_impl, and so on. Note that if we disable a certain feature through cmake options and leaded some libraries not defined, these libraries shouldn't be packed (such as if we disabled bpftime verifier, then we shouldn't pack bpftime-verifier)
• Dependencies of the above libraries, except standard library. For example, frida, spdlog

[hp77-creator]

So, we should also have an option to package these libraries or should we mandate it? Like this: https://github.com/WasmEdge/WasmEdge/blob/f5cf26c66e4bbb9bca00497fce5c814aac7d56fa/lib/api/CMakeLists.txt#L144 https://github.com/WasmEdge/WasmEdge/blob/f5cf26c66e4bbb9bca00497fce5c814aac7d56fa/lib/api/CMakeLists.txt#L159

[Officeyutong]

So, we should also have an option to package these libraries or should we mandate it? Like this: https://github.com/WasmEdge/WasmEdge/blob/f5cf26c66e4bbb9bca00497fce5c814aac7d56fa/lib/api/CMakeLists.txt#L144 https://github.com/WasmEdge/WasmEdge/blob/f5cf26c66e4bbb9bca00497fce5c814aac7d56fa/lib/api/CMakeLists.txt#L159

We should have an option like BPFTIME_BUILD_STATIC_LIB, if enabled, a target named bpftime_static should be added, which includes all object files that we need