On 6/25/20 2:34 PM, Joel Sherrill wrote:
Hi
RTEMS supports over 15 processor architectures and we would like to ensure
that TLS is supported on all rather than just a handful of popular ones
(arm, x86, powerpc, sparc, etc). I know of Ulrich Drepper's document (
https://www.akkadia.org/drepper/tls.pdf) but it is a few years old and
covers only a subset of architectures.
Is TLS supported on all architectures in GCC?
Is there some documentation on how it is implemented on architectures not
in Ulrich's paper? Or some guidance on how to extract this information from
the GCC source?
The ARM (32) abi has some extensions to that, which originally came from
Alex Oliva and then I implemented (The GNU2 TLS stuff). I think the
smarts is in the linker for that though.
IMHO bfd might be a better source of information than gcc.
natan
--
Nathan Sidwell
