$ WS " printf(""%d\n"", i);"
$ WS " exit(0);"
$ WS "}"
+$ CS
$ GOSUB compile
$ d_nv_preserves_uv_bits = tmp
$ ENDIF
+$!
+$ echo4 "Checking whether your kill() uses SYS$FORCEX..."
+$ kill_by_sigprc = "undef"
+$ OS
+$ WS "#include <stdio.h>"
+$ WS "#include <signal.h>"
+$ WS "void handler(int s) { printf(""%d\n"",s); } "
+$ WS "main(){"
+$ WS " printf(""0"");"
+$ WS " signal(1,handler); kill(0,1);"
+$ WS "}"
+$ CS
+$ ON ERROR THEN CONTINUE
+$ GOSUB compile
+$ IF tmp .NES. "01"
+$ THEN
+$ echo "Yes, it does."
+$ echo4 "Checking whether we can use SYS$SIGPRC instead"
+$ OS
+$ WS "#include <stdio.h>"
+$ WS "#include <lib$routines.h>"
+$ WS "unsigned long code = 0;"
+$ WS "int handler(unsigned long *args) {"
+$ WS " code = args[1];"
+$ WS " return 1;"
+$ WS "}"
+$ WS "main() { "
+$ WS " int iss, sys$sigprc();"
+$ WS " lib$establish(handler);"
+$ WS " iss = sys$sigprc(0,0,0x1234);"
+$ WS " iss = ((iss&1)==1 && code == 0x1234);"
+$ WS " printf(""%d\n"",iss);"
+$ WS "}"
+$ CS
+$ GOSUB compile
+$ IF tmp .EQS. "1"
+$ THEN
+$ echo "looks like we can"
+$ kill_by_sigprc = "define"
+$!
+$! since SIGBUS and SIGSEGV indistinguishable, make them the same here.
+$! sigusr1 and sigusr2 show up in VMS6.2 and later
+$!
+$ if vms_ver .GES. "6.2"
+$ then
+$ sig_name="ZERO HUP INT QUIT ILL TRAP IOT EMT FPE KILL BUS SEGV SYS PIPE ALRM TERM ABRT USR1 USR2"",0"
+$ psnwc1="""ZERO"",""HUP"",""INT"",""QUIT"",""ILL"",""TRAP"",""IOT"",""EMT"",""FPE"",""KILL"",""BUS"",""SEGV"",""SYS"","
+$ psnwc2="""PIPE"",""ALRM"",""TERM"",""ABRT"",""USR1"",""USR2"",0"
+$ sig_name_init = psnwc1 + psnwc2
+$ sig_num="0 1 2 3 4 5 6 7 8 9 10 10 12 13 14 15 6 16 17"",0"
+$ sig_num_init="0,1,2,3,4,5,6,7,8,9,10,10,12,13,14,15,6,16,17,0"
+$ sig_size="19"
+$ else
+$ sig_name="ZERO HUP INT QUIT ILL TRAP IOT EMT FPE KILL BUS SEGV SYS PIPE ALRM TERM ABRT"",0"
+$ psnwc1="""ZERO"",""HUP"",""INT"",""QUIT"",""ILL"",""TRAP"",""IOT"",""EMT"",""FPE"",""KILL"",""BUS"",""SEGV"",""SYS"","
+$ psnwc2="""PIPE"",""ALRM"",""TERM"",""ABRT"",0"
+$ sig_name_init = psnwc1 + psnwc2
+$ sig_num="0 1 2 3 4 5 6 7 8 9 10 10 12 13 14 15 6"",0"
+$ sig_num_init="0,1,2,3,4,5,6,7,8,9,10,10,12,13,14,15,6,0"
+$ sig_size="17"
+$ endif
+$ ENDIF
+$ ENDIF
$ DELETE/SYMBOL tmp
$!
$! Finally the composite ones. All config
$! Alas this does not help to build Fcntl
$! WC "#define PERL_IGNORE_FPUSIG SIGFPE"
$ ENDIF
+$ IF kill_by_sigprc .EQS. "define" then WC "#define KILL_BY_SIGPRC"
$ CLOSE CONFIG
$!
$ echo4 "Doing variable substitutions on .SH files..."
/*}}}*/
#endif
+#ifdef KILL_BY_SIGPRC
+#include <errnodef.h>
+
+/* okay, this is some BLATENT hackery ...
+ we use this if the kill() in the CRTL uses sys$forcex, causing the
+ target process to do a sys$exit, which usually can't be handled
+ gracefully...certainly not by Perl and the %SIG{} mechanism.
+
+ Instead we use the (undocumented) system service sys$sigprc.
+ It has the same parameters as sys$forcex, but throws an exception
+ in the target process rather than calling sys$exit.
+
+ Note that distinguishing SIGSEGV from SIGBUS requires an extra arg
+ on the ACCVIO condition, which sys$sigprc (and sys$forcex) don't
+ provide. On VMS 7.0+ this is taken care of by doing sys$sigprc
+ with condition codes C$_SIG0+nsig*8, catching the exception on the
+ target process and resignaling with appropriate arguments.
+
+ But we don't have that VMS 7.0+ exception handler, so if you
+ Perl_my_kill(.., SIGSEGV) it will show up as a SIGBUS. Oh well.
+
+ Also note that SIGTERM is listed in the docs as being "unimplemented",
+ yet always seems to be signaled with a VMS condition code of 4 (and
+ correctly handled for that code). So we hardwire it in.
+
+ Unlike the VMS 7.0+ CRTL kill() function, we actually check the signal
+ number to see if it's valid. So Perl_my_kill(pid,0) returns -1 rather
+ than signalling with an unrecognized (and unhandled by CRTL) code.
+*/
+
+#define _MY_SIG_MAX 17
+
+int
+Perl_my_kill(int pid, int sig)
+{
+ int iss;
+ int sys$sigprc(unsigned int *pidadr,
+ struct dsc$descriptor_s *prcname,
+ unsigned int code);
+ static unsigned long sig_code[_MY_SIG_MAX+1] =
+ {
+ 0, /* 0 ZERO */
+ SS$_HANGUP, /* 1 SIGHUP */
+ SS$_CONTROLC, /* 2 SIGINT */
+ SS$_CONTROLY, /* 3 SIGQUIT */
+ SS$_RADRMOD, /* 4 SIGILL */
+ SS$_BREAK, /* 5 SIGTRAP */
+ SS$_OPCCUS, /* 6 SIGABRT */
+ SS$_COMPAT, /* 7 SIGEMT */
+#ifdef __VAX
+ SS$_FLTOVF, /* 8 SIGFPE VAX */
+#else
+ SS$_HPARITH, /* 8 SIGFPE AXP */
+#endif
+ SS$_ABORT, /* 9 SIGKILL */
+ SS$_ACCVIO, /* 10 SIGBUS */
+ SS$_ACCVIO, /* 11 SIGSEGV */
+ SS$_BADPARAM, /* 12 SIGSYS */
+ SS$_NOMBX, /* 13 SIGPIPE */
+ SS$_ASTFLT, /* 14 SIGALRM */
+ 4, /* 15 SIGTERM */
+ 0, /* 16 SIGUSR1 */
+ 0 /* 17 SIGUSR2 */
+ };
+
+#if __VMS_VER >= 60200000
+ static int initted = 0;
+ if (!initted) {
+ initted = 1;
+ sig_code[16] = C$_SIGUSR1;
+ sig_code[17] = C$_SIGUSR2;
+ }
+#endif
+
+ if (!pid || sig < _SIG_MIN || sig > _SIG_MAX || sig > _MY_SIG_MAX || !sig_code[sig]) {
+ return -1;
+ }
+
+ iss = sys$sigprc((unsigned int *)&pid,0,sig_code[sig]);
+ if (iss&1) return 0;
+
+ switch (iss) {
+ case SS$_NOPRIV:
+ set_errno(EPERM); break;
+ case SS$_NONEXPR:
+ case SS$_NOSUCHNODE:
+ case SS$_UNREACHABLE:
+ set_errno(ESRCH); break;
+ case SS$_INSFMEM:
+ set_errno(ENOMEM); break;
+ default:
+ _ckvmssts(iss);
+ set_errno(EVMSERR);
+ }
+ set_vaxc_errno(iss);
+
+ return -1;
+}
+#endif
+
/* default piping mailbox size */
#define PERL_BUFSIZ 512
# define sigaction(a,b,c) Perl_my_sigaction(a,b,c)
# endif
#endif
+#ifdef KILL_BY_SIGPRC
+# define kill Perl_my_kill
+#endif
+
/* VMS doesn't use a real sys_nerr, but we need this when scanning for error
* messages in text strings . . .
#ifndef HOMEGROWN_POSIX_SIGNALS
int Perl_my_sigaction (pTHX_ int, const struct sigaction*, struct sigaction*);
#endif
+#ifdef KILL_BY_SIGPRC
+int Perl_my_kill (int, int);
+#endif
int Perl_my_utime (pTHX_ char *, struct utimbuf *);
void Perl_vms_image_init (int *, char ***);
struct dirent * Perl_readdir (pTHX_ DIR *);
projects / p5sagit/p5-mst-13.2.git / commitdiff