socsvn commit: r272788 - soc2014/dpl/netmap-ipfwjit/sys/netpfil/ipfw

[dpl at FreeBSD.org]

Author: dpl
Date: Thu Aug 21 18:56:39 2014
New Revision: 272788
URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=272788

Log:
  Added stuff to bitcode

Modified:
  soc2014/dpl/netmap-ipfwjit/sys/netpfil/ipfw/ip_fw_rules.c

Modified: soc2014/dpl/netmap-ipfwjit/sys/netpfil/ipfw/ip_fw_rules.c
==============================================================================
--- soc2014/dpl/netmap-ipfwjit/sys/netpfil/ipfw/ip_fw_rules.c	Thu Aug 21 18:55:42 2014	(r272787)
+++ soc2014/dpl/netmap-ipfwjit/sys/netpfil/ipfw/ip_fw_rules.c	Thu Aug 21 18:56:39 2014	(r272788)
@@ -1,7 +1,70 @@
-/*
- * This is the file that gets compiled when 
- * generating bitcode.
- */
+ #include <sys/param.h>
+ #include <sys/ucred.h>
 
  #define IPFW_RULES_INLINE __unused
  #include "ip_fw_rules.h"
+
+// The real function will be compiled and inserted by the JIT.
+int ipfw_chk_jit(struct ip_fw_args *args, struct ip_fw_chain *chain);
+
+// Declarations of some needed structs.
+struct mbuf;
+struct ifnet;
+struct in_addr;
+struct ip;
+struct ip_fw_args;
+struct ip_fw_chain;
+struct ip_fw;
+struct _ipfw_insn;
+struct _ipfw_insn_if;
+struct _ipfw_dyn_rule;
+
+// We should hide this.
+#ifndef __FreeBSD__
+	struct bsd_ucred;
+#else
+	struct ucred;
+#endif
+
+// Functions used by JIT, external.
+int printf(const char * restrict format, ...);
+int ipfw_find_rule(struct ip_fw_chain *chain, uint32_t key, uint32_t id);
+void crfree(struct ucred *);
+
+
+// This functions only forces the compiler to store the stubs of the functions
+// so that they can be used by the JIT-compiled code instead.
+// this functions is not to be called anywhere.
+void
+voidfunction()
+{
+	struct ip_fw_args arguments;
+	struct ip_fw_chain chainss;
+
+	#ifndef __FreeBSD__
+		struct bsd_ucred user_creds;
+	#else
+		struct ucred user_creds;
+	#endif
+
+	// These two structs are not included.
+	// We need to do something with them.
+	struct _ipfw_insn_if insnif;
+	struct _ipfw_dyn_rule rules;
+
+	struct ip_fw_args *args = &arguments;
+	struct ip_fw_chain *chain = &chainss;
+
+	ipfw_find_rule(chain, 0, 0);
+	ipfw_chk_jit(args, chain);
+
+	insnif.o.opcode = 0;
+	rules.next = &rules;
+
+#ifdef __FreeBSD__
+	struct ucred *ucreds = &user_creds;
+
+	crfree(ucreds);
+#endif
+}
+