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runtime: restructured signal_linux.go, added signal table for mips64.

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Linux/mips64 uses a different signal table. To avoid code copying,
signal table is factored out from signal_linux.go to
sigtab_linux_generic.go. And a mips64-specific version is added.

Change-Id: I842d7a7467c330bf772855fde01aecc77a42316b
Reviewed-on: https://go-review.googlesource.com/14993
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Yao Zhang 2015-09-24 08:56:15 -04:00 committed by Minux Ma
parent 624f84536d
commit 846a9adf05
3 changed files with 163 additions and 73 deletions
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73
src/runtime/signal_linux.go
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@ -6,79 +6,6 @@ package runtime
import "unsafe" import "unsafe"
type sigTabT struct {
flags int32
name string
}
var sigtable = [...]sigTabT{
/* 0 */ {0, "SIGNONE: no trap"},
/* 1 */ {_SigNotify + _SigKill, "SIGHUP: terminal line hangup"},
/* 2 */ {_SigNotify + _SigKill, "SIGINT: interrupt"},
/* 3 */ {_SigNotify + _SigThrow, "SIGQUIT: quit"},
/* 4 */ {_SigThrow + _SigUnblock, "SIGILL: illegal instruction"},
/* 5 */ {_SigThrow + _SigUnblock, "SIGTRAP: trace trap"},
/* 6 */ {_SigNotify + _SigThrow, "SIGABRT: abort"},
/* 7 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
/* 8 */ {_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"},
/* 9 */ {0, "SIGKILL: kill"},
/* 10 */ {_SigNotify, "SIGUSR1: user-defined signal 1"},
/* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
/* 12 */ {_SigNotify, "SIGUSR2: user-defined signal 2"},
/* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"},
/* 14 */ {_SigNotify, "SIGALRM: alarm clock"},
/* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"},
/* 16 */ {_SigThrow + _SigUnblock, "SIGSTKFLT: stack fault"},
/* 17 */ {_SigNotify + _SigUnblock, "SIGCHLD: child status has changed"},
/* 18 */ {0, "SIGCONT: continue"},
/* 19 */ {0, "SIGSTOP: stop, unblockable"},
/* 20 */ {_SigNotify + _SigDefault, "SIGTSTP: keyboard stop"},
/* 21 */ {_SigNotify + _SigDefault, "SIGTTIN: background read from tty"},
/* 22 */ {_SigNotify + _SigDefault, "SIGTTOU: background write to tty"},
/* 23 */ {_SigNotify, "SIGURG: urgent condition on socket"},
/* 24 */ {_SigNotify, "SIGXCPU: cpu limit exceeded"},
/* 25 */ {_SigNotify, "SIGXFSZ: file size limit exceeded"},
/* 26 */ {_SigNotify, "SIGVTALRM: virtual alarm clock"},
/* 27 */ {_SigNotify + _SigUnblock, "SIGPROF: profiling alarm clock"},
/* 28 */ {_SigNotify, "SIGWINCH: window size change"},
/* 29 */ {_SigNotify, "SIGIO: i/o now possible"},
/* 30 */ {_SigNotify, "SIGPWR: power failure restart"},
/* 31 */ {_SigNotify, "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"},
/* 35 */ {_SigNotify, "signal 35"},
/* 36 */ {_SigNotify, "signal 36"},
/* 37 */ {_SigNotify, "signal 37"},
/* 38 */ {_SigNotify, "signal 38"},
/* 39 */ {_SigNotify, "signal 39"},
/* 40 */ {_SigNotify, "signal 40"},
/* 41 */ {_SigNotify, "signal 41"},
/* 42 */ {_SigNotify, "signal 42"},
/* 43 */ {_SigNotify, "signal 43"},
/* 44 */ {_SigNotify, "signal 44"},
/* 45 */ {_SigNotify, "signal 45"},
/* 46 */ {_SigNotify, "signal 46"},
/* 47 */ {_SigNotify, "signal 47"},
/* 48 */ {_SigNotify, "signal 48"},
/* 49 */ {_SigNotify, "signal 49"},
/* 50 */ {_SigNotify, "signal 50"},
/* 51 */ {_SigNotify, "signal 51"},
/* 52 */ {_SigNotify, "signal 52"},
/* 53 */ {_SigNotify, "signal 53"},
/* 54 */ {_SigNotify, "signal 54"},
/* 55 */ {_SigNotify, "signal 55"},
/* 56 */ {_SigNotify, "signal 56"},
/* 57 */ {_SigNotify, "signal 57"},
/* 58 */ {_SigNotify, "signal 58"},
/* 59 */ {_SigNotify, "signal 59"},
/* 60 */ {_SigNotify, "signal 60"},
/* 61 */ {_SigNotify, "signal 61"},
/* 62 */ {_SigNotify, "signal 62"},
/* 63 */ {_SigNotify, "signal 63"},
/* 64 */ {_SigNotify, "signal 64"},
}
// Continuation of the (assembly) sigtramp() logic. // Continuation of the (assembly) sigtramp() logic.
//go:nosplit //go:nosplit
func sigtrampgo(sig uint32, info *siginfo, ctx unsafe.Pointer) { func sigtrampgo(sig uint32, info *siginfo, ctx unsafe.Pointer) {

82
src/runtime/sigtab_linux_generic.go Normal file
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@ -0,0 +1,82 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !mips64
// +build !mips64le
// +build linux
package runtime
type sigTabT struct {
flags int32
name string
}
var sigtable = [...]sigTabT{
/* 0 */ {0, "SIGNONE: no trap"},
/* 1 */ {_SigNotify + _SigKill, "SIGHUP: terminal line hangup"},
/* 2 */ {_SigNotify + _SigKill, "SIGINT: interrupt"},
/* 3 */ {_SigNotify + _SigThrow, "SIGQUIT: quit"},
/* 4 */ {_SigThrow + _SigUnblock, "SIGILL: illegal instruction"},
/* 5 */ {_SigThrow + _SigUnblock, "SIGTRAP: trace trap"},
/* 6 */ {_SigNotify + _SigThrow, "SIGABRT: abort"},
/* 7 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
/* 8 */ {_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"},
/* 9 */ {0, "SIGKILL: kill"},
/* 10 */ {_SigNotify, "SIGUSR1: user-defined signal 1"},
/* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
/* 12 */ {_SigNotify, "SIGUSR2: user-defined signal 2"},
/* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"},
/* 14 */ {_SigNotify, "SIGALRM: alarm clock"},
/* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"},
/* 16 */ {_SigThrow + _SigUnblock, "SIGSTKFLT: stack fault"},
/* 17 */ {_SigNotify + _SigUnblock, "SIGCHLD: child status has changed"},
/* 18 */ {0, "SIGCONT: continue"},
/* 19 */ {0, "SIGSTOP: stop, unblockable"},
/* 20 */ {_SigNotify + _SigDefault, "SIGTSTP: keyboard stop"},
/* 21 */ {_SigNotify + _SigDefault, "SIGTTIN: background read from tty"},
/* 22 */ {_SigNotify + _SigDefault, "SIGTTOU: background write to tty"},
/* 23 */ {_SigNotify, "SIGURG: urgent condition on socket"},
/* 24 */ {_SigNotify, "SIGXCPU: cpu limit exceeded"},
/* 25 */ {_SigNotify, "SIGXFSZ: file size limit exceeded"},
/* 26 */ {_SigNotify, "SIGVTALRM: virtual alarm clock"},
/* 27 */ {_SigNotify + _SigUnblock, "SIGPROF: profiling alarm clock"},
/* 28 */ {_SigNotify, "SIGWINCH: window size change"},
/* 29 */ {_SigNotify, "SIGIO: i/o now possible"},
/* 30 */ {_SigNotify, "SIGPWR: power failure restart"},
/* 31 */ {_SigNotify, "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"},
/* 35 */ {_SigNotify, "signal 35"},
/* 36 */ {_SigNotify, "signal 36"},
/* 37 */ {_SigNotify, "signal 37"},
/* 38 */ {_SigNotify, "signal 38"},
/* 39 */ {_SigNotify, "signal 39"},
/* 40 */ {_SigNotify, "signal 40"},
/* 41 */ {_SigNotify, "signal 41"},
/* 42 */ {_SigNotify, "signal 42"},
/* 43 */ {_SigNotify, "signal 43"},
/* 44 */ {_SigNotify, "signal 44"},
/* 45 */ {_SigNotify, "signal 45"},
/* 46 */ {_SigNotify, "signal 46"},
/* 47 */ {_SigNotify, "signal 47"},
/* 48 */ {_SigNotify, "signal 48"},
/* 49 */ {_SigNotify, "signal 49"},
/* 50 */ {_SigNotify, "signal 50"},
/* 51 */ {_SigNotify, "signal 51"},
/* 52 */ {_SigNotify, "signal 52"},
/* 53 */ {_SigNotify, "signal 53"},
/* 54 */ {_SigNotify, "signal 54"},
/* 55 */ {_SigNotify, "signal 55"},
/* 56 */ {_SigNotify, "signal 56"},
/* 57 */ {_SigNotify, "signal 57"},
/* 58 */ {_SigNotify, "signal 58"},
/* 59 */ {_SigNotify, "signal 59"},
/* 60 */ {_SigNotify, "signal 60"},
/* 61 */ {_SigNotify, "signal 61"},
/* 62 */ {_SigNotify, "signal 62"},
/* 63 */ {_SigNotify, "signal 63"},
/* 64 */ {_SigNotify, "signal 64"},
}

81
src/runtime/sigtab_linux_mips64x.go Normal file
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@ -0,0 +1,81 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build mips64 mips64le
// +build linux
package runtime
type sigTabT struct {
flags int32
name string
}
var sigtable = [...]sigTabT{
/* 0 */ {0, "SIGNONE: no trap"},
/* 1 */ {_SigNotify + _SigKill, "SIGHUP: terminal line hangup"},
/* 2 */ {_SigNotify + _SigKill, "SIGINT: interrupt"},
/* 3 */ {_SigNotify + _SigThrow, "SIGQUIT: quit"},
/* 4 */ {_SigThrow + _SigUnblock, "SIGILL: illegal instruction"},
/* 5 */ {_SigThrow + _SigUnblock, "SIGTRAP: trace trap"},
/* 6 */ {_SigNotify + _SigThrow, "SIGABRT: abort"},
/* 7 */ {_SigNotify, "SIGEMT"},
/* 8 */ {_SigPanic + _SigUnblock, "SIGFPE: floating-point exception"},
/* 9 */ {0, "SIGKILL: kill"},
/* 10 */ {_SigPanic + _SigUnblock, "SIGBUS: bus error"},
/* 11 */ {_SigPanic + _SigUnblock, "SIGSEGV: segmentation violation"},
/* 12 */ {_SigNotify, "SIGSYS: bad system call"},
/* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"},
/* 14 */ {_SigNotify, "SIGALRM: alarm clock"},
/* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"},
/* 16 */ {_SigNotify, "SIGUSR1: user-defined signal 1"},
/* 17 */ {_SigNotify, "SIGUSR2: user-defined signal 2"},
/* 18 */ {_SigNotify + _SigUnblock, "SIGCHLD: child status has changed"},
/* 19 */ {_SigNotify, "SIGPWR: power failure restart"},
/* 20 */ {_SigNotify, "SIGWINCH: window size change"},
/* 21 */ {_SigNotify, "SIGURG: urgent condition on socket"},
/* 22 */ {_SigNotify, "SIGIO: i/o now possible"},
/* 23 */ {0, "SIGSTOP: stop, unblockable"},
/* 24 */ {_SigNotify + _SigDefault, "SIGTSTP: keyboard stop"},
/* 25 */ {0, "SIGCONT: continue"},
/* 26 */ {_SigNotify + _SigDefault, "SIGTTIN: background read from tty"},
/* 27 */ {_SigNotify + _SigDefault, "SIGTTOU: background write to tty"},
/* 28 */ {_SigNotify, "SIGVTALRM: virtual alarm clock"},
/* 29 */ {_SigNotify + _SigUnblock, "SIGPROF: profiling alarm clock"},
/* 30 */ {_SigNotify, "SIGXCPU: cpu limit exceeded"},
/* 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"},
/* 35 */ {_SigNotify, "signal 35"},
/* 36 */ {_SigNotify, "signal 36"},
/* 37 */ {_SigNotify, "signal 37"},
/* 38 */ {_SigNotify, "signal 38"},
/* 39 */ {_SigNotify, "signal 39"},
/* 40 */ {_SigNotify, "signal 40"},
/* 41 */ {_SigNotify, "signal 41"},
/* 42 */ {_SigNotify, "signal 42"},
/* 43 */ {_SigNotify, "signal 43"},
/* 44 */ {_SigNotify, "signal 44"},
/* 45 */ {_SigNotify, "signal 45"},
/* 46 */ {_SigNotify, "signal 46"},
/* 47 */ {_SigNotify, "signal 47"},
/* 48 */ {_SigNotify, "signal 48"},
/* 49 */ {_SigNotify, "signal 49"},
/* 50 */ {_SigNotify, "signal 50"},
/* 51 */ {_SigNotify, "signal 51"},
/* 52 */ {_SigNotify, "signal 52"},
/* 53 */ {_SigNotify, "signal 53"},
/* 54 */ {_SigNotify, "signal 54"},
/* 55 */ {_SigNotify, "signal 55"},
/* 56 */ {_SigNotify, "signal 56"},
/* 57 */ {_SigNotify, "signal 57"},
/* 58 */ {_SigNotify, "signal 58"},
/* 59 */ {_SigNotify, "signal 59"},
/* 60 */ {_SigNotify, "signal 60"},
/* 61 */ {_SigNotify, "signal 61"},
/* 62 */ {_SigNotify, "signal 62"},
/* 63 */ {_SigNotify, "signal 63"},
/* 64 */ {_SigNotify, "signal 64"},
}