737a5b0eaa
AIX and Solaris call into libc for syscalls, and expect M.mOS.perrno to point to the thread-local errno value for the current M. We initialize that field in miniterrno called from mstart. However, this means that any libc calls before mstart will not return the correct errno value. This caused trouble in checkfds, which runs very early, before mstart. We worked around that in 513215. This CL reverts 513215 in favor of a better workaround: call miniterrno for m0 earlier (we will still wind up calling miniterrno again from mstart, which does no harm). This is a better workaround because it means that if we add future syscalls before mstart, they will behave as expected. Fixes #61584 Change-Id: Ib6a0d3c53d2c8214cc339a5019f9d4f71a746f0c Reviewed-on: https://go-review.googlesource.com/c/go/+/513535 Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Ian Lance Taylor <iant@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> |
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