Support for arm 32bit (arm) in vendor/libunwind not implemented

[ghensto]

Description
The vendor/libunwind documentation suggest that we could build for arm 32bit but the the CmakeList file doesn't have an option

sentry-native/vendor/libunwind/CMakeLists.txt

Line 26 in 3354b27

else()

When does the problem happen
When trying to build for "arm" 32bit processors

• [x ] During build
• During run-time
• When capturing a hard crash

[linear-code]

NATIVE-174

[supervacuus]

Hi @ghensto. This is by design, since we only introduce code paths into the build that are continuously tested. ARM is currently not, and thus not officially supported (at least in the standalone SDK). If you tested on your side, only adding the 32-bit ARM path to the build script works; we will accept a PR.