[fpc-devel] The 15k bounty: Optimizing executable speed for Linux x86 / LLVM

[Michael Van Canneyt]

On Sat, 20 Oct 2018, Simon Kissel wrote:

> - Make Exception handling, TLS etc use the infrastructure that
>  libpthread is providing

TLS is handled already by libpthread. I doubt you will gain much there.

However, Exception handling is a problem. There are 2 possible ways ahead:
- DWARF exception handling as mentioned by Sven.
- Port SEH to be cross platform, this is the approach as taken by Kylix.
Kilyx has a small rtlunwind  library that mimics the needed run-time functionality
offered by Windows.

Conceivably, it can be duplicated. wine probably has such a library which
can be used as an inspiration.

The needed compiler infrastructure for SEH  already exists, so this is most likely
the fastest way to proceed.

Michael..