111 /*

   112   All the defined signal names for Bsd.

   113 

   114   NOTE that not all of these names are accepted by our Java implementation

   115 

   116   Via an existing claim by the VM, sigaction restrictions, or

   117   the "rules of Unix" some of these names will be rejected at runtime.

   118   For example the VM sets up to handle USR1, sigaction returns EINVAL for

   119   STOP, and Bsd simply doesn't allow catching of KILL.

   120 

   121   Here are the names currently accepted by a user of sun.misc.Signal with

   122   1.4.1 (ignoring potential interaction with use of chaining, etc):

   123 

   124     HUP, INT, TRAP, ABRT, IOT, BUS, USR2, PIPE, ALRM, TERM, STKFLT,

   125     CLD, CHLD, CONT, TSTP, TTIN, TTOU, URG, XCPU, XFSZ, VTALRM, PROF,

   126     WINCH, POLL, IO, PWR, SYS

   127 

   128 */

   129 

   130 struct siglabel {

   131   const char *name;

   132   int   number;

   133 };

   134 

   135 struct siglabel siglabels[] = {

   136   /* derived from /usr/include/bits/signum.h on RH7.2 */

   137    "HUP",       SIGHUP,         /* Hangup (POSIX).  */

   138   "INT",        SIGINT,         /* Interrupt (ANSI).  */

   139   "QUIT",       SIGQUIT,        /* Quit (POSIX).  */

   140   "ILL",        SIGILL,         /* Illegal instruction (ANSI).  */

   141   "TRAP",       SIGTRAP,        /* Trace trap (POSIX).  */

   142   "ABRT",       SIGABRT,        /* Abort (ANSI).  */

   143   "EMT",        SIGEMT,         /* EMT trap  */

   144   "FPE",        SIGFPE,         /* Floating-point exception (ANSI).  */

   145   "KILL",       SIGKILL,        /* Kill, unblockable (POSIX).  */

   146   "BUS",        SIGBUS,         /* BUS error (4.2 BSD).  */

   147   "SEGV",       SIGSEGV,        /* Segmentation violation (ANSI).  */

   148   "SYS",        SIGSYS,         /* Bad system call. Only on some Bsden! */

   149   "PIPE",       SIGPIPE,        /* Broken pipe (POSIX).  */

   150   "ALRM",       SIGALRM,        /* Alarm clock (POSIX).  */

   151   "TERM",       SIGTERM,        /* Termination (ANSI).  */

   152   "URG",        SIGURG,         /* Urgent condition on socket (4.2 BSD).  */

   153   "STOP",       SIGSTOP,        /* Stop, unblockable (POSIX).  */

   154   "TSTP",       SIGTSTP,        /* Keyboard stop (POSIX).  */

   155   "CONT",       SIGCONT,        /* Continue (POSIX).  */

   156   "CHLD",       SIGCHLD,        /* Child status has changed (POSIX).  */

   157   "TTIN",       SIGTTIN,        /* Background read from tty (POSIX).  */

   158   "TTOU",       SIGTTOU,        /* Background write to tty (POSIX).  */

   159   "IO",         SIGIO,          /* I/O now possible (4.2 BSD).  */

   160   "XCPU",       SIGXCPU,        /* CPU limit exceeded (4.2 BSD).  */

   161   "XFSZ",       SIGXFSZ,        /* File size limit exceeded (4.2 BSD).  */

   162   "VTALRM",     SIGVTALRM,      /* Virtual alarm clock (4.2 BSD).  */

   163   "PROF",       SIGPROF,        /* Profiling alarm clock (4.2 BSD).  */

   164   "WINCH",      SIGWINCH,       /* Window size change (4.3 BSD, Sun).  */

   165   "INFO",       SIGINFO,        /* Information request.  */

   166   "USR1",       SIGUSR1,        /* User-defined signal 1 (POSIX).  */

   167   "USR2",       SIGUSR2         /* User-defined signal 2 (POSIX).  */

   168   };

   169 

   170 JVM_ENTRY_NO_ENV(jint, JVM_FindSignal(const char *name))

   171 

   172   /* find and return the named signal's number */

   173 

   174   for(uint i=0; i<ARRAY_SIZE(siglabels); i++)

   175     if(!strcmp(name, siglabels[i].name))

   176       return siglabels[i].number;

   177 

   178   return -1;

   179 

   180 JVM_END

   181 

   182 // used by os::exception_name()

   183 extern bool signal_name(int signo, char* buf, size_t len) {

   184   for(uint i = 0; i < ARRAY_SIZE(siglabels); i++) {

   185     if (signo == siglabels[i].number) {

   186       jio_snprintf(buf, len, "SIG%s", siglabels[i].name);

   187       return true;

   188     }

   189   }

   190   return false;

   191 }