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runtime: drop _SigUnblock for SIGSYS on Linux

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The _SigUnblock flag was appended to SIGSYS slot of runtime signal table
for Linux in https://go-review.googlesource.com/22202, but there is
still no concrete opinion on whether SIGSYS must be an unblocked signal
for runtime.

This change removes _SigUnblock flag from SIGSYS on Linux for
consistency in runtime signal handling and adds a reference to #15204 to
runtime signal table for FreeBSD.

Updates #15204.

Change-Id: I42992b1d852c2ab5dd37d6dbb481dba46929f665
Reviewed-on: https://go-review.googlesource.com/22537
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Mikio Hara 2016-04-28 09:35:19 +09:00
parent bec0863b53
commit be730b49ca
3 changed files with 3 additions and 3 deletions
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2
src/runtime/sigtab_linux_generic.go
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@ -45,7 +45,7 @@ var sigtable = [...]sigTabT{
/* 28 */ {_SigNotify, "SIGWINCH: window size change"},
/* 29 */ {_SigNotify, "SIGIO: i/o now possible"},
/* 30 */ {_SigNotify, "SIGPWR: power failure restart"},
/* 31 */ {_SigThrow + _SigUnblock, "SIGSYS: bad system call"},
/* 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"},