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runtime: handle signal 34 for musl setgid

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It has been observed that setgid hangs when using cgo with musl.
This fix ensures that signal 34 gets handled in an appropriate way,
like signal 33 when using glibc.

Fixes #39343

Change-Id: I89565663e2c361f62cbccfe80aaedf290bd58d57
Reviewed-on: https://go-review.googlesource.com/c/go/+/236518
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
George Tsilias 2020-06-04 23:11:56 +03:00 committed by Ian Lance Taylor
parent 40d1ec588f
commit 49b017fe59
2 changed files with 2 additions and 2 deletions
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2
src/runtime/sigtab_linux_generic.go
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@ -45,7 +45,7 @@ var sigtable = [...]sigTabT{
/* 31 */ {_SigThrow, "SIGSYS: bad system call"},
/* 32 */ {_SigSetStack + _SigUnblock, "signal 32"}, /* SIGCANCEL; see issue 6997 */
/* 33 */ {_SigSetStack + _SigUnblock, "signal 33"}, /* SIGSETXID; see issues 3871, 9400, 12498 */
/* 34 */ {_SigNotify, "signal 34"},
/* 34 */ {_SigSetStack + _SigUnblock, "signal 34"}, /* musl SIGSYNCCALL; see issue 39343 */
/* 35 */ {_SigNotify, "signal 35"},
/* 36 */ {_SigNotify, "signal 36"},
/* 37 */ {_SigNotify, "signal 37"},

2
src/runtime/sigtab_linux_mipsx.go
View File

@ -42,7 +42,7 @@ var sigtable = [...]sigTabT{
/* 31 */ {_SigNotify, "SIGXFSZ: file size limit exceeded"},
/* 32 */ {_SigSetStack + _SigUnblock, "signal 32"}, /* SIGCANCEL; see issue 6997 */
/* 33 */ {_SigSetStack + _SigUnblock, "signal 33"}, /* SIGSETXID; see issues 3871, 9400, 12498 */
/* 34 */ {_SigNotify, "signal 34"},
/* 34 */ {_SigSetStack + _SigUnblock, "signal 34"}, /* musl SIGSYNCCALL; see issue 39343 */
/* 35 */ {_SigNotify, "signal 35"},
/* 36 */ {_SigNotify, "signal 36"},
/* 37 */ {_SigNotify, "signal 37"},