| commit | 67f0f83216930e053441500e2b28c3fa2b667581 | [log] [tgz] |
|---|---|---|
| author | Cherry Zhang <cherryyz@google.com> | Mon Nov 25 23:29:02 2019 -0500 |
| committer | Cherry Zhang <cherryyz@google.com> | Tue Nov 26 16:55:36 2019 +0000 |
| tree | 12ce05f277c9e0428ed13627a2de511f73912ee9 | |
| parent | 20bf6a495eabad79b7b275d46fc3e11c620b8212 [diff] |
runtime: disable async preemption on darwin/arm(64) if no cgo On darwin, we use libc calls, and cgo is required on ARM and ARM64 so we have TLS set up to save/restore G during C calls. If cgo is absent, we cannot save/restore G in TLS, and if a signal is received during C execution we cannot get the G. Therefore don't send signals (and hope that we won't receive any signal during C execution). This can only happen in the go_bootstrap program (otherwise cgo is required). Fixes #35800. Change-Id: I6c02a9378af02c19d32749a42db45165b578188d Reviewed-on: https://go-review.googlesource.com/c/go/+/208818 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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