iproute2: reduce .ipk package size from ~100k down to ~60k

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39119 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/network/utils/iproute2/Makefile b/package/network/utils/iproute2/Makefile
index dbacd27..a44572d 100644 (file)
--- a/package/network/utils/iproute2/Makefile
+++ b/package/network/utils/iproute2/Makefile
@@ -69,10 +69,15 @@ ifdef CONFIG_USE_EGLIBC
   endif
 endif
 
   endif
 endif
 

+TARGET_CFLAGS += -ffunction-sections -fdata-sections
+

 MAKE_FLAGS += \
        EXTRA_CCOPTS="$(TARGET_CFLAGS) -I../include -I$(STAGING_DIR)/usr/include/libnl-tiny" \
        KERNEL_INCLUDE="$(LINUX_DIR)/include" \
 MAKE_FLAGS += \
        EXTRA_CCOPTS="$(TARGET_CFLAGS) -I../include -I$(STAGING_DIR)/usr/include/libnl-tiny" \
        KERNEL_INCLUDE="$(LINUX_DIR)/include" \

-       FPIC="$(FPIC)"
+       SHARED_LIBS="" \
+       LDFLAGS="-Wl,--gc-sections" \
+       IP_CONFIG_TINY=y \
+       FPIC=""

 
 define Build/Compile
        +$(MAKE_VARS) $(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) $(MAKE_FLAGS)
 
 define Build/Compile
        +$(MAKE_VARS) $(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) $(MAKE_FLAGS)

diff --git a/package/network/utils/iproute2/patches/300-ip_tiny.patch b/package/network/utils/iproute2/patches/300-ip_tiny.patch
new file mode 100644 (file)
index 0000000..43afb9c
--- /dev/null
+++ b/package/network/utils/iproute2/patches/300-ip_tiny.patch
@@ -0,0 +1,115 @@
+--- a/ip/Makefile
++++ b/ip/Makefile
+@@ -15,6 +15,13 @@ ifeq ($(IP_CONFIG_SETNS),y)
+       CFLAGS += -DHAVE_SETNS
+ endif
+ 
++STATIC_SYM_FILTER:=
++ifeq ($(IP_CONFIG_TINY),y)
++  STATIC_SYM_FILTER:=iplink_can.c iplink_ipoib.c iplink_vxlan.c
++  CFLAGS += -DIPROUTE2_TINY
++endif
++STATIC_SYM_SOURCES:=$(filter-out $(STATIC_SYM_FILTER),$(wildcard *.c))
++
+ ALLOBJ=$(IPOBJ) $(RTMONOBJ)
+ SCRIPTS=ifcfg rtpr routel routef
+ TARGETS=ip rtmon
+@@ -43,7 +50,7 @@ else
+ 
+ ip: static-syms.o
+ static-syms.o: static-syms.h
+-static-syms.h: $(wildcard *.c)
++static-syms.h: $(STATIC_SYM_SOURCES)
+       files="$^" ; \
+       for s in `grep -B 3 '\<dlsym' $$files | sed -n '/snprintf/{s:.*"\([^"]*\)".*:\1:;s:%s::;p}'` ; do \
+               sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:extern char \1[] __attribute__((weak)); if (!strcmp(sym, "\1")) return \1;:;p}' $$files ; \
+--- a/ip/ip.c
++++ b/ip/ip.c
+@@ -66,29 +66,41 @@ static const struct cmd {
+       int (*func)(int argc, char **argv);
+ } cmds[] = {
+       { "address",    do_ipaddr },
++#ifndef IPROUTE2_TINY
+       { "addrlabel",  do_ipaddrlabel },
++#endif
+       { "maddress",   do_multiaddr },
+       { "route",      do_iproute },
+       { "rule",       do_iprule },
+       { "neighbor",   do_ipneigh },
+       { "neighbour",  do_ipneigh },
++#ifndef IPROUTE2_TINY
+       { "ntable",     do_ipntable },
+       { "ntbl",       do_ipntable },
++#endif
+       { "link",       do_iplink },
++#ifndef IPROUTE2_TINY
+       { "l2tp",       do_ipl2tp },
++#endif
+       { "tunnel",     do_iptunnel },
+       { "tunl",       do_iptunnel },
++#ifndef IPROUTE2_TINY
+       { "tuntap",     do_iptuntap },
+       { "tap",        do_iptuntap },
+       { "token",      do_iptoken },
+       { "tcpmetrics", do_tcp_metrics },
+       { "tcp_metrics",do_tcp_metrics },
++#endif
+       { "monitor",    do_ipmonitor },
++#ifndef IPROUTE2_TINY
+       { "xfrm",       do_xfrm },
++#endif
+       { "mroute",     do_multiroute },
+       { "mrule",      do_multirule },
+       { "netns",      do_netns },
++#ifndef IPROUTE2_TINY
+       { "netconf",    do_ipnetconf },
++#endif
+       { "help",       do_help },
+       { 0 }
+ };
+--- a/lib/utils.c
++++ b/lib/utils.c
+@@ -627,6 +627,7 @@ const char *rt_addr_n2a(int af, int len,
+       case AF_INET:
+       case AF_INET6:
+               return inet_ntop(af, addr, buf, buflen);
++#ifndef IPROUTE2_TINY
+       case AF_IPX:
+               return ipx_ntop(af, addr, buf, buflen);
+       case AF_DECnet:
+@@ -635,6 +636,7 @@ const char *rt_addr_n2a(int af, int len,
+               memcpy(dna.a_addr, addr, 2);
+               return dnet_ntop(af, &dna, buf, buflen);
+       }
++#endif
+       default:
+               return "???";
+       }
+@@ -710,6 +712,7 @@ const char *format_host(int af, int len,
+                       case AF_INET6:
+                               len = 16;
+                               break;
++#ifndef IPROUTE2_TINY
+                       case AF_IPX:
+                               len = 10;
+                               break;
+@@ -720,6 +723,7 @@ const char *format_host(int af, int len,
+                               len = 2;
+                               break;
+ #endif
++#endif
+                       default: ;
+                       }
+               }
+--- a/lib/Makefile
++++ b/lib/Makefile
+@@ -1,5 +1,9 @@
+ include ../Config
+ 
++ifeq ($(IP_CONFIG_TINY),y)
++  CFLAGS += -DIPROUTE2_TINY
++endif
++
+ CFLAGS += $(FPIC)
+ 
+ UTILOBJ=utils.o rt_names.o ll_types.o ll_proto.o ll_addr.o inet_proto.o