lxip: Fix implicit declaration warning

Issue #1050

dde_linux/lib/mk/lxip.mk

@@ -30,8 +30,7 @@ CC_WARN = -Wall -Wno-unused-variable -Wno-uninitialized \
           -Wno-unused-function -Wno-overflow -Wno-pointer-arith \
           -Wno-sign-compare
 
-CC_C_OPT  += -Wno-implicit-function-declaration -Wno-unused-but-set-variable \
-             -Wno-pointer-sign
+CC_C_OPT  += -Wno-unused-but-set-variable -Wno-pointer-sign
 
 CC_C_OPT  += -include $(LIB_INC_DIR)/lx_emul.h
 CC_CXX_OPT = -fpermissive
@@ -39,7 +38,7 @@ CC_CXX_OPT = -fpermissive
 SRC_CC = dummies.cc env.cc lxcc_emul.cc nic_handler.cc socket_handler.cc \
          timer_handler.cc
 
-SRC_C += driver.c init.c lxc_emul.c socket.c
+SRC_C += driver.c dummies_c.c init.c lxc_emul.c socket.c
 
 SRC_C += net/802/p8023.c
 SRC_C += $(addprefix net/core/,$(notdir $(wildcard $(NET_DIR)/core/*.c)))

dde_linux/src/lib/lxip/dummies.cc

@@ -190,7 +190,6 @@ DUMMY(-1, csum_unfold)
 DUMMY(-1, current)
 DUMMY(-1, current_egid)
 DUMMY(-1, current_text_addr)
-DUMMY(-1, current_uid_gid)
 DUMMY(-1, del_timer_sync)
 DUMMY(-1, dev_driver_string)
 DUMMY(-1, device_rename)
@@ -271,11 +270,9 @@ DUMMY(-1, ip_check_mc_rcu)
 DUMMY(-1, ip_mc_destroy_dev)
 DUMMY(-1, ip_mc_down)
 DUMMY(-1, ip_mc_drop_socket)
-DUMMY(-1, ip_mc_gsfget)
 DUMMY(-1, ip_mc_init_dev)
 DUMMY(-1, ip_mc_join_group)
 DUMMY(-1, ip_mc_leave_group)
-DUMMY(-1, ip_mc_msfget)
 DUMMY(-1, ip_mc_msfilter)
 DUMMY(-1, ip_mc_remap)
 DUMMY(-1, ip_mc_sf_allow)
@@ -380,7 +377,7 @@ DUMMY(-1, put_unaligned_be32)
 DUMMY(-1, __raise_softirq_irqoff)
 DUMMY(-1, raise_softirq_irqoff)
 DUMMY(-1, random32)
-DUMMY(-1, __ratelimit)
+DUMMY(-1, ___ratelimit)
 DUMMY(-1, raw_notifier_chain_unregister)
 DUMMY(-1, rcu_barrier)
 DUMMY(-1, register_gifconf)
@@ -413,7 +410,6 @@ DUMMY(-1, security_inet_csk_clone)
 DUMMY(-1, security_netlink_send)
 DUMMY(-1, security_release_secctx)
 DUMMY(-1, security_req_classify_flow)
-DUMMY(-1, security_secid_to_secctx)
 DUMMY(-1, security_skb_classify_flow)
 DUMMY(-1, security_skb_owned_by)
 DUMMY(-1, security_sk_classify_flow)
@@ -516,5 +512,6 @@ DUMMY(-1, xfrm4_udp_encap_rcv)
 DUMMY(-1, xfrm_sk_free_policy)
 DUMMY(-1, xfrm_user_policy)
 DUMMY(-1, yield)
+DUMMY(-1, __xchg)
 } /* extern "C" */
 

dde_linux/src/lib/lxip/dummies_c.c

@@ -0,0 +1,41 @@
+/**
+ * \brief  Dummies that cannot be implemented with the DUMMY macros
+ * \author Sebastian Sumpf
+ * \date   2014-02-10
+ */
+
+/*
+ * Copyright (C) 2014 Genode Labs GmbH
+ *
+ * This file is part of the Genode OS framework, which is distributed
+ * under the terms of the GNU General Public License version 2.
+ */
+
+#include <lx_emul.h>
+
+int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
+{
+		printk("%s called (from %p) not implemented", __func__, __builtin_return_address(0));
+	
+	*seclen = 0;
+	return -1;
+}
+
+
+int ip_mc_msfget(struct sock *sk, struct ip_msfilter *msf,
+                 struct ip_msfilter *optval, int *optlen)
+{
+	printk("%s called (from %p) not implemented", __func__, __builtin_return_address(0));
+	
+	*optlen = 0;
+	return -1;
+}
+
+int ip_mc_gsfget(struct sock *sk, struct group_filter *gsf,
+                 struct group_filter  *optval, int  *optlen)
+{
+	printk("%s called (from %p) not implemented", __func__, __builtin_return_address(0));
+
+	*optlen = 0;
+	return -1;
+}

dde_linux/src/lib/lxip/init.c

@@ -14,6 +14,7 @@
 #include <linux/inetdevice.h>
 #include <net/tcp.h>
 #include <init.h>
+
 /*
  * Header declarations and tuning
  */
@@ -36,6 +37,19 @@ unsigned long nr_free_buffer_pages(void)
 }
 
 
+/*
+ * Declare stuff used
+ */
+int __ip_auto_config_setup(char *addrs);
+void core_sock_init(void);
+void core_netlink_proto_init(void);
+void subsys_net_dev_init(void);
+void fs_inet_init(void);
+void module_driver_init(void);
+void module_cubictcp_register(void);
+void late_ip_auto_config(void);
+void late_tcp_congestion_default(void);
+
 /**
  * Initialize sub-systems
  */

dde_linux/src/lib/lxip/lxc_emul.c

@@ -14,6 +14,7 @@
 #include <net/ip_fib.h>
 #include <uapi/linux/rtnetlink.h>
 #include <dde_kit/memory.h>
+#include <net/sock.h>
 #include <net/route.h>
 #include <net/tcp.h>