[FR] Add pdbs to the NDK

[tiagomacarios]

Description

See #2059 for background.
Having the clang pdbs would help us understand what the issue is and possibly suggest fixes/work around issues.

[DanAlbert]

@pirama-arumuga-nainar, WDYT? Maybe not include them directly in the NDK (are they large?), but make sure they're on ci.android.com so people can get them if they need them?

[pirama-arumuga-nainar]

LLVM_ENABLE_PDB should generate this. I'm testing locally to get an idea about the size.

ci.android.com sounds like the correct place to make them available. Note that our current builds have a shorter retention period (internal bug b/332650194) but that'll probably get resolved within the next two quarters.

[pirama-arumuga-nainar]

$ du -sh clang.pdb lld.pdb
896M    clang.pdb
565M    lld.pdb

These are several times larger than clang itself. Both of the files compress down to 214M combined. Definitely not something we could distribute.

[DanAlbert]

They're rarely needed, so ci.android.com would be fine anyway.

[tiagomacarios]

@DanAlbert @pirama-arumuga-nainar Was this implemented? If yes, could you document where to find the pdbs? I am not very familiar with the build infrastructure.

[DanAlbert]

Not yet. We've got a lot of other things on our plate. We'll update the bug when something changes.