From 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 Mon Sep 17 00:00:00 2001
From: Joe Hunkeler <jhunkeler@gmail.com>
Date: Tue, 11 Aug 2015 16:51:37 -0400
Subject: Repatch (from linux) of OSX IRAF

---
 unix/shlib/Slib.c | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 unix/shlib/Slib.c

(limited to 'unix/shlib/Slib.c')

diff --git a/unix/shlib/Slib.c b/unix/shlib/Slib.c
new file mode 100644
index 00000000..40e21968
--- /dev/null
+++ b/unix/shlib/Slib.c
@@ -0,0 +1,85 @@
+/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+ */
+
+/*
+ * SLIB.C -- Support routines for the shared library.
+ */
+
+extern	unsigned vshlib_[];
+extern	char *((*environ)[]);
+extern	char *Malloc(), *Realloc(), *Free();
+
+main()
+{
+	/* Malloc etc. are produced by the MEDIT task - see mkshlib.csh. */
+	vlibinit_ (environ, Malloc, Realloc, Free);
+
+	/* Do something useful when S.e is called as a task. */
+	printf ("Sun/IRAF Shared Library, version %d, %d symbols\n",
+	    vshlib_[0], vshlib_[5]);
+	printf ("base=%x, etext=%x, edata=%x, end=%x, size=%dKb\n",
+	    vshlib_[1], vshlib_[2], vshlib_[3], vshlib_[4],
+	    (vshlib_[4] - vshlib_[1]) / 1000);
+}
+
+
+/* Back link to selected procedures and global variables in the client so
+ * that the shared library code can call routines executing in the runtime
+ * context of the client image.  (Not intended to be portable).
+ */
+#define	I_malloc	0
+#define	I_realloc	1
+#define	I_free		2
+#define	I_len		3
+
+#ifdef SOLARIS
+#define	I_dlopen	4
+#define	I_dlclose	5
+#define	I_dlsym		6
+#define	I_dlerror	7
+#endif
+
+typedef int (*PFI)();
+static	PFI fcn[I_len];
+
+malloc	(nb)	{ return (fcn[I_malloc](nb)); }
+realloc	(bp,nb)	{ return (fcn[I_realloc](bp,nb)); }
+free	(bp)	{ return (fcn[I_free](bp)); }
+
+#ifdef SOLARIS
+void *dlopen (const char *pathname, int mode)
+	{ return ((void *)fcn[I_dlopen] (pathname, mode)); }
+int dlclose (void *handle)
+	{ return ((int)fcn[I_dlclose] (handle)); }
+void *dlsym (void *handle, const char *name)
+	{ return ((void *)fcn[I_dlsym] (handle, name)); }
+char *dlerror (void)
+	{ return ((char *)fcn[I_dlerror]()); }
+
+vlibinit_ (u_environ, u_malloc, u_realloc, u_free,
+	    u_dlopen, u_dlclose, u_dlsym, u_dlerror)
+char	*((*u_environ)[]);
+PFI	u_malloc, u_realloc, u_free;
+PFI	u_dlopen, u_dlclose, u_dlsym, u_dlerror;
+{
+	environ = u_environ;
+	fcn[I_malloc] = u_malloc;
+	fcn[I_realloc] = u_realloc;
+	fcn[I_free] = u_free;
+	fcn[I_dlopen] = u_dlopen;
+	fcn[I_dlclose] = u_dlclose;
+	fcn[I_dlsym] = u_dlsym;
+	fcn[I_dlerror] = u_dlerror;
+}
+#else
+
+vlibinit_ (u_environ, u_malloc, u_realloc, u_free)
+char	*((*u_environ)[]);
+PFI	u_malloc, u_realloc, u_free;
+{
+	environ = u_environ;
+	fcn[I_malloc] = u_malloc;
+	fcn[I_realloc] = u_realloc;
+	fcn[I_free] = u_free;
+}
+#endif
-- 
cgit