PERFORCE change 95622 for review

[John Birrell]

http://perforce.freebsd.org/chv.cgi?CH=95622

Change 95622 by jb at jb_freebsd2 on 2006/04/19 20:14:39

	Enable _dtrace_init() as a constructor. This is the most convenient way
	to turn on debug in dtrace(1). Another way is via the '-x debug' command
	like argument, but quite a lot of initialisation takes place before 
	options like that are processed.

Affected files ...

.. //depot/projects/dtrace/src/contrib/opensolaris/lib/libdtrace/common/dt_open.c#6 edit

Differences ...

==== //depot/projects/dtrace/src/contrib/opensolaris/lib/libdtrace/common/dt_open.c#6 (text) ====

@@ -640,17 +640,21 @@
 
 #if defined(sun)
 #pragma init(_dtrace_init)
+#else
+void _dtrace_init(void) __attribute__ ((constructor));
+#endif
 void
 _dtrace_init(void)
 {
 	_dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
 
+#if defined(sun)
 	for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
 		if (rd_init(_dtrace_rdvers) == RD_OK)
 			break;
 	}
+#endif
 }
-#endif
 
 static dtrace_hdl_t *
 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)