New version of libproc. Changes are:

* breakpoint setup support
* register query
* symbol to address mapping and vice-versa
* more misc utility functions based on their Solaris counterpart

Also, I've written some test cases.

Sponsored by:	The FreeBSD Foundation

1 files changed, 79 insertions, 0 deletions

diff --git a/lib/libproc/proc_rtld.c b/lib/libproc/proc_rtld.c
new file mode 100644
index 0000000..5caadd9e
--- /dev/null
+++ b/lib/libproc/proc_rtld.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2010 The FreeBSD Foundation 
+ * All rights reserved. 
+ * 
+ * This software was developed by Rui Paulo under sponsorship from the
+ * FreeBSD Foundation. 
+ *  
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions 
+ * are met: 
+ * 1. Redistributions of source code must retain the above copyright 
+ *    notice, this list of conditions and the following disclaimer. 
+ * 2. Redistributions in binary form must reproduce the above copyright 
+ *    notice, this list of conditions and the following disclaimer in the 
+ *    documentation and/or other materials provided with the distribution. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
+ * SUCH DAMAGE. 
+ */ 
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <rtld_db.h>
+#include "libproc.h"
+#include "_libproc.h"
+
+static int
+map_iter(const rd_loadobj_t *lop, void *arg)
+{
+	struct proc_handle *phdl = arg;
+
+	phdl->nobjs++;
+	if (phdl->nobjs >= phdl->rdobjsz) {
+		phdl->rdobjsz *= 2;
+		phdl->rdobjs = realloc(phdl->rdobjs, phdl->rdobjsz);
+		if (phdl->rdobjs == NULL)
+			return (-1);
+	}
+	memcpy(&phdl->rdobjs[phdl->nobjs++], lop, sizeof(*phdl->rdobjs));
+
+	return (0);
+}
+
+rd_agent_t *
+proc_rdagent(struct proc_handle *phdl)
+{
+	if (phdl->rdap == NULL && phdl->status != PS_UNDEAD &&
+	    phdl->status != PS_IDLE) {
+		if ((phdl->rdap = rd_new(phdl)) != NULL) {
+			phdl->rdobjs = malloc(sizeof(*phdl->rdobjs) * 64);
+			if (phdl->rdobjs == NULL)
+				return (phdl->rdap);
+			rd_loadobj_iter(phdl->rdap, map_iter, phdl);
+		}
+	}
+
+	return (phdl->rdap);
+}
+
+void
+proc_updatesyms(struct proc_handle *phdl)
+{
+	memset(&phdl->rdobjs, 0, sizeof(*phdl->rdobjs) * phdl->rdobjsz);
+	phdl->nobjs = 0;
+	rd_loadobj_iter(phdl->rdap, map_iter, phdl);
+}