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changeset 2960:2b6b3728f6f6

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*** empty log message ***
author Jim Meyering <jim@meyering.net>
date Sun, 05 Nov 2000 09:52:55 +0000
parents 039105c82820
children 6f34939d48af
files lib/tru-knlist-demo.c
diffstat 1 files changed, 39 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/tru-knlist-demo.c	Sun Nov 05 09:52:55 2000 +0000
@@ -0,0 +1,39 @@
+/* From the knlist manpage */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <nlist.h>
+main ()
+{
+  struct nlist   nl[3];
+  int            retval, i;
+  nl[0].n_name = (char *)malloc(10);
+  nl[1].n_name = (char *)malloc(10);
+  nl[2].n_name = "";
+
+  /*******************************************************/
+  /* Store names of kernel symbols in the nl array       */
+  strcpy (nl[0].n_name, "ncpus");
+  strcpy (nl[1].n_name, "lockmode");
+
+  /*******************************************************/
+  /* Call the knlist routine                             */
+  retval = knlist(nl);
+
+  /******************************************************/
+  /* Display addresses if returned.  Otherwise, display */
+  /* the appropriate error message.                     */
+  if (retval < 0)
+     printf ("No kernel symbol addresses returned.\n");
+  else
+     if (retval >= 0 )
+	for (i=0; i<2; i++)
+	    if (nl[i].n_type == 0)
+		printf ("Unable to return address of symbol %s\n",
+			nl[i].n_name);
+	    else
+		printf ("The address of symbol %s is %lx\n",
+			nl[i].n_name, nl[i].n_value);
+  free (nl[0].n_name);
+  free (nl[1].n_name);
+}