On Sun, 11 Feb 2024 at 09:35, Florian Weimer <fweimer@xxxxxxxxxx> wrote:
We've hit an ABI ambiguity/bug:
gcc: -mtls-dialect=gnu2 produces wrong code on x86-64
<https://bugzilla.redhat.com/show_bug.cgi?id=2263739>
Was this set for the Fedora 40 mass rebuild or something that was put in later? If it was put into the mass rebuild, what problems would it cause currently?
Apart from that, support in the GNU toolchain seems to be quite good.
In particular, GDB handled the situation in the polymake crash quite
well (reporting TLS data as uninitialized for the thread before the
critical call, and producing the correct address for the variable
afterwards).
Thanks,
Florian
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