[dev.cc] code review 171660043: [dev.cc] runtime: convert openbsd/amd64 runtime from C to Go

src/runtime/signal_openbsd.go

 // 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.
 
-#include "textflag.h"
+package runtime
 
-#define N SigNotify
-#define K SigKill
-#define T SigThrow
-#define P SigPanic
-#define D SigDefault
+type sigTabT struct {
+        flags int32
+        name  string
+}
 
-#pragma dataflag NOPTR
-SigTab runtime·sigtab[] = {
-        /*  0 */        0, "SIGNONE: no trap",
-        /*  1 */        N+K, "SIGHUP: terminal line hangup",
-        /*  2 */        N+K, "SIGINT: interrupt",
-        /*  3 */        N+T, "SIGQUIT: quit",
-        /*  4 */        T, "SIGILL: illegal instruction",
-        /*  5 */        T, "SIGTRAP: trace trap",
-        /*  6 */        N+T, "SIGABRT: abort",
-        /*  7 */        T, "SIGEMT: emulate instruction executed",
-        /*  8 */        P, "SIGFPE: floating-point exception",
-        /*  9 */        0, "SIGKILL: kill",
-        /* 10 */        P, "SIGBUS: bus error",
-        /* 11 */        P, "SIGSEGV: segmentation violation",
-        /* 12 */        T, "SIGSYS: bad system call",
-        /* 13 */        N, "SIGPIPE: write to broken pipe",
-        /* 14 */        N, "SIGALRM: alarm clock",
-        /* 15 */        N+K, "SIGTERM: termination",
-        /* 16 */        N, "SIGURG: urgent condition on socket",
-        /* 17 */        0, "SIGSTOP: stop",
-        /* 18 */        N+D, "SIGTSTP: keyboard stop",
-        /* 19 */        0, "SIGCONT: continue after stop",
-        /* 20 */        N, "SIGCHLD: child status has changed",
-        /* 21 */        N+D, "SIGTTIN: background read from tty",
-        /* 22 */        N+D, "SIGTTOU: background write to tty",
-        /* 23 */        N, "SIGIO: i/o now possible",
-        /* 24 */        N, "SIGXCPU: cpu limit exceeded",
-        /* 25 */        N, "SIGXFSZ: file size limit exceeded",
-        /* 26 */        N, "SIGVTALRM: virtual alarm clock",
-        /* 27 */        N, "SIGPROF: profiling alarm clock",
-        /* 28 */        N, "SIGWINCH: window size change",
-        /* 29 */        N, "SIGINFO: status request from keyboard",
-        /* 30 */        N, "SIGUSR1: user-defined signal 1",
-        /* 31 */        N, "SIGUSR2: user-defined signal 2",
-        /* 32 */        N, "SIGTHR: reserved",
-};
-
-#undef N
-#undef K
-#undef T
-#undef P
-#undef D
+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, "SIGILL: illegal instruction"},
+        /*  5 */ {_SigThrow, "SIGTRAP: trace trap"},
+        /*  6 */ {_SigNotify + _SigThrow, "SIGABRT: abort"},
+        /*  7 */ {_SigThrow, "SIGEMT: emulate instruction executed"},
+        /*  8 */ {_SigPanic, "SIGFPE: floating-point exception"},
+        /*  9 */ {0, "SIGKILL: kill"},
+        /* 10 */ {_SigPanic, "SIGBUS: bus error"},
+        /* 11 */ {_SigPanic, "SIGSEGV: segmentation violation"},
+        /* 12 */ {_SigThrow, "SIGSYS: bad system call"},
+        /* 13 */ {_SigNotify, "SIGPIPE: write to broken pipe"},
+        /* 14 */ {_SigNotify, "SIGALRM: alarm clock"},
+        /* 15 */ {_SigNotify + _SigKill, "SIGTERM: termination"},
+        /* 16 */ {_SigNotify, "SIGURG: urgent condition on socket"},
+        /* 17 */ {0, "SIGSTOP: stop"},
+        /* 18 */ {_SigNotify + _SigDefault, "SIGTSTP: keyboard stop"},
+        /* 19 */ {0, "SIGCONT: continue after stop"},
+        /* 20 */ {_SigNotify, "SIGCHLD: child status has changed"},
+        /* 21 */ {_SigNotify + _SigDefault, "SIGTTIN: background read from tty"},
+        /* 22 */ {_SigNotify + _SigDefault, "SIGTTOU: background write to tty"},
+        /* 23 */ {_SigNotify, "SIGIO: i/o now possible"},
+        /* 24 */ {_SigNotify, "SIGXCPU: cpu limit exceeded"},
+        /* 25 */ {_SigNotify, "SIGXFSZ: file size limit exceeded"},
+        /* 26 */ {_SigNotify, "SIGVTALRM: virtual alarm clock"},
+        /* 27 */ {_SigNotify, "SIGPROF: profiling alarm clock"},
+        /* 28 */ {_SigNotify, "SIGWINCH: window size change"},
+        /* 29 */ {_SigNotify, "SIGINFO: status request from keyboard"},
+        /* 30 */ {_SigNotify, "SIGUSR1: user-defined signal 1"},
+        /* 31 */ {_SigNotify, "SIGUSR2: user-defined signal 2"},
+        /* 32 */ {_SigNotify, "SIGTHR: reserved"},
+}