[PATCH] D123200: [compiler-rt][CMake] Add initial support of target AVR

[Ben Shi via Phabricator via cfe-commits]

benshi001 added a comment.

In D123200#3436043 <https://reviews.llvm.org/D123200#3436043>, @aykevl wrote:

> What about chip families other than avr2 (the default)? Some have a different PC pointer size (1-3 bytes, therefore affecting the ABI), some have different instructions, etc.

There are two options `CMAKE_CXX_FLAGS` and `CMAKE_C_FLAGS" can be specified when doing cmake compiler-rt, we can specify the instruction set via them.

Since libgcc-avr has unique source code but built into several different libgcc.a files with different instruction set, I expect compiler-rt would be done in the way.

And of cource this patch just is an initial support, we still need much more patches to make it fully functional.


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https://reviews.llvm.org/D123200