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runtime: simplify GOOS detection in mstart()

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The existing condition is long and repetitive.  Using select/case with
multiple values in the expression list is more concise and clearer.

Change-Id: I43f8abcf958e433468728f1d89ff1436332b29da
Reviewed-on: https://go-review.googlesource.com/c/go/+/188519
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Ayan George 2019-08-01 12:35:59 -04:00 committed by Brad Fitzpatrick
parent 4757518737
commit b3a1205a11
1 changed files with 2 additions and 1 deletions
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3
src/runtime/proc.go
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@ -1167,7 +1167,8 @@ func mstart() {
mstart1()
// Exit this thread.
if GOOS == "windows" || GOOS == "solaris" || GOOS == "illumos" || GOOS == "plan9" || GOOS == "darwin" || GOOS == "aix" {
switch GOOS {
case "windows", "solaris", "illumos", "plan9", "darwin", "aix":
// Windows, Solaris, illumos, Darwin, AIX and Plan 9 always system-allocate
// the stack, but put it in _g_.stack before mstart,
// so the logic above hasn't set osStack yet.