runtime/cgo: raise the thread-local storage slot search limit on Android
On Android, the thread local offset is found by looping through memory starting at the TLS base address. The search is limited to PTHREAD_KEYS_MAX, but issue 19472 made it clear that in some cases, the slot is located further from the TLS base. The limit is merely a sanity check in case our assumptions about the thread-local storage layout are wrong, so this CL raises it to 384, which is enough for the test case in issue 19472. Fixes #19472 Change-Id: I89d1db3e9739d3a7fff5548ae487a7483c0a278a Reviewed-on: https://go-review.googlesource.com/38636 Run-TryBot: Elias Naur <elias.naur@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:Ian Lance Taylor <iant@golang.org>
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