src/os/aix/vm/jvm_aix.cpp

rev 9462 : 8143291: Remove redundant coding around os::exception_name
Reviewed-By: dholmes

*** 107,200 ****
  
    os::signal_raise(sig);
    return JNI_TRUE;
  JVM_END
  
- /*
-   All the defined signal names for Linux.
- 
-   NOTE that not all of these names are accepted by our Java implementation
- 
-   Via an existing claim by the VM, sigaction restrictions, or
-   the "rules of Unix" some of these names will be rejected at runtime.
-   For example the VM sets up to handle USR1, sigaction returns EINVAL for
-   STOP, and Linux simply doesn't allow catching of KILL.
- 
-   Here are the names currently accepted by a user of sun.misc.Signal with
-   1.4.1 (ignoring potential interaction with use of chaining, etc):
- 
-     HUP, INT, TRAP, ABRT, IOT, BUS, USR2, PIPE, ALRM, TERM, STKFLT,
-     CLD, CHLD, CONT, TSTP, TTIN, TTOU, URG, XCPU, XFSZ, VTALRM, PROF,
-     WINCH, POLL, IO, PWR, SYS
- 
- */
- 
- struct siglabel {
-   const char *name;
-   int   number;
- };
- 
- struct siglabel siglabels[] = {
-   /* derived from /usr/include/bits/signum.h on RH7.2 */
-    "HUP",       SIGHUP,         /* Hangup (POSIX).  */
-   "INT",        SIGINT,         /* Interrupt (ANSI).  */
-   "QUIT",       SIGQUIT,        /* Quit (POSIX).  */
-   "ILL",        SIGILL,         /* Illegal instruction (ANSI).  */
-   "TRAP",       SIGTRAP,        /* Trace trap (POSIX).  */
-   "ABRT",       SIGABRT,        /* Abort (ANSI).  */
-   "IOT",        SIGIOT,         /* IOT trap (4.2 BSD).  */
-   "BUS",        SIGBUS,         /* BUS error (4.2 BSD).  */
-   "FPE",        SIGFPE,         /* Floating-point exception (ANSI).  */
-   "KILL",       SIGKILL,        /* Kill, unblockable (POSIX).  */
-   "USR1",       SIGUSR1,        /* User-defined signal 1 (POSIX).  */
-   "SEGV",       SIGSEGV,        /* Segmentation violation (ANSI).  */
-   "USR2",       SIGUSR2,        /* User-defined signal 2 (POSIX).  */
-   "PIPE",       SIGPIPE,        /* Broken pipe (POSIX).  */
-   "ALRM",       SIGALRM,        /* Alarm clock (POSIX).  */
-   "TERM",       SIGTERM,        /* Termination (ANSI).  */
- #ifdef SIGSTKFLT
-   "STKFLT",     SIGSTKFLT,      /* Stack fault.  */
- #endif
-   "CLD",        SIGCLD,         /* Same as SIGCHLD (System V).  */
-   "CHLD",       SIGCHLD,        /* Child status has changed (POSIX).  */
-   "CONT",       SIGCONT,        /* Continue (POSIX).  */
-   "STOP",       SIGSTOP,        /* Stop, unblockable (POSIX).  */
-   "TSTP",       SIGTSTP,        /* Keyboard stop (POSIX).  */
-   "TTIN",       SIGTTIN,        /* Background read from tty (POSIX).  */
-   "TTOU",       SIGTTOU,        /* Background write to tty (POSIX).  */
-   "URG",        SIGURG,         /* Urgent condition on socket (4.2 BSD).  */
-   "XCPU",       SIGXCPU,        /* CPU limit exceeded (4.2 BSD).  */
-   "XFSZ",       SIGXFSZ,        /* File size limit exceeded (4.2 BSD).  */
-   "DANGER",     SIGDANGER,      /* System crash imminent; free up some page space (AIX). */
-   "VTALRM",     SIGVTALRM,      /* Virtual alarm clock (4.2 BSD).  */
-   "PROF",       SIGPROF,        /* Profiling alarm clock (4.2 BSD).  */
-   "WINCH",      SIGWINCH,       /* Window size change (4.3 BSD, Sun).  */
-   "POLL",       SIGPOLL,        /* Pollable event occurred (System V).  */
-   "IO",         SIGIO,          /* I/O now possible (4.2 BSD).  */
-   "PWR",        SIGPWR,         /* Power failure restart (System V).  */
- #ifdef SIGSYS
-   "SYS",        SIGSYS          /* Bad system call. Only on some Linuxen! */
- #endif
-   };
- 
- JVM_ENTRY_NO_ENV(jint, JVM_FindSignal(const char *name))
- 
-   /* find and return the named signal's number */
- 
-   for(uint i=0; i<ARRAY_SIZE(siglabels); i++)
-     if(!strcmp(name, siglabels[i].name))
-       return siglabels[i].number;
- 
-   return -1;
- 
- JVM_END
- 
- // used by os::exception_name()
- extern bool signal_name(int signo, char* buf, size_t len) {
-   for(uint i = 0; i < ARRAY_SIZE(siglabels); i++) {
-     if (signo == siglabels[i].number) {
-       jio_snprintf(buf, len, "SIG%s", siglabels[i].name);
-       return true;
-     }
-   }
-   return false;
- }
--- 107,111 ----