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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/signal_freebsd.go
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@ -24,7 +24,7 @@ var sigtable = [...]sigTabT{
/* 9 */ {0, "SIGKILL: kill"}, /* 9 */ {0, "SIGKILL: kill"},
/* 10 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"}, /* 10 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
/* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"}, /* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
/* 12 */ {_SigNotify, "SIGSYS: bad system call"}, /* 12 */ {_SigNotify, "SIGSYS: bad system call"}, // see golang.org/issues/15204
/* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"}, /* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"},
/* 14 */ {_SigNotify, "SIGALRM: alarm clock"}, /* 14 */ {_SigNotify, "SIGALRM: alarm clock"},
/* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"}, /* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"},

2
src/runtime/sigtab_linux_generic.go
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@ -45,7 +45,7 @@ var sigtable = [...]sigTabT{
/* 28 */ {_SigNotify, "SIGWINCH: window size change"}, /* 28 */ {_SigNotify, "SIGWINCH: window size change"},
/* 29 */ {_SigNotify, "SIGIO: i/o now possible"}, /* 29 */ {_SigNotify, "SIGIO: i/o now possible"},
/* 30 */ {_SigNotify, "SIGPWR: power failure restart"}, /* 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 */ /* 32 */ {_SigSetStack + _SigUnblock, "signal 32"}, /* SIGCANCEL; see issue 6997 */
/* 33 */ {_SigSetStack + _SigUnblock, "signal 33"}, /* SIGSETXID; see issues 3871, 9400, 12498 */ /* 33 */ {_SigSetStack + _SigUnblock, "signal 33"}, /* SIGSETXID; see issues 3871, 9400, 12498 */
/* 34 */ {_SigNotify, "signal 34"}, /* 34 */ {_SigNotify, "signal 34"},

2
src/runtime/sigtab_linux_mips64x.go
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@ -25,7 +25,7 @@ var sigtable = [...]sigTabT{
/* 9 */ {0, "SIGKILL: kill"}, /* 9 */ {0, "SIGKILL: kill"},
/* 10 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"}, /* 10 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
/* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"}, /* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
/* 12 */ {_SigThrow + _SigUnblock, "SIGSYS: bad system call"}, /* 12 */ {_SigThrow, "SIGSYS: bad system call"},
/* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"}, /* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"},
/* 14 */ {_SigNotify, "SIGALRM: alarm clock"}, /* 14 */ {_SigNotify, "SIGALRM: alarm clock"},
/* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"}, /* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"},