package/network/utils/iproute2/patches/175-reduce-dynamic-syms.patch

   1 --- a/tc/Makefile
   2 +++ b/tc/Makefile
   3 @@ -106,7 +106,7 @@ LDLIBS += -L. -lm
   4
   5  ifeq ($(SHARED_LIBS),y)
   6  LDLIBS += -ldl
   7 -LDFLAGS += -Wl,-export-dynamic
   8 +LDFLAGS += -Wl,--dynamic-list=dynsyms.list
   9  endif
  10
  11  TCLIB := tc_core.o
  12 @@ -135,7 +135,7 @@ MODDESTDIR := $(DESTDIR)$(LIBDIR)/tc
  13  all: tc $(TCSO)
  14
  15  tc: $(TCOBJ) $(LIBNETLINK) libtc.a
  16 -       $(QUIET_LINK)$(CC) $^ $(LDFLAGS) $(LDLIBS) -o $@
  17 +       $(QUIET_LINK)$(CC) $(filter-out dynsyms.list, $^) $(LDFLAGS) $(LDLIBS) -o $@
  18
  19  libtc.a: $(TCLIB)
  20         $(QUIET_AR)$(AR) rcs $@ $^
  21 @@ -157,6 +157,7 @@ install: all
  22  clean:
  23         rm -f $(TCOBJ) $(TCLIB) libtc.a tc *.so emp_ematch.tab.h; \
  24         rm -f emp_ematch.tab.*
  25 +       rm -f dynsyms.list
  26
  27  m_xt.so: m_xt.c
  28         $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fpic -o m_xt.so m_xt.c $$($(PKG_CONFIG) xtables --cflags --libs)
  29 @@ -193,4 +194,16 @@ static-syms.h: $(wildcard *.c)
  30                 sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:extern char \1[] __attribute__((weak)); if (!strcmp(sym, "\1")) return \1;:;p}' $$files ; \
  31         done > $@
  32
  33 +else
  34 +
  35 +tc: dynsyms.list
  36 +m_xt.so: dynsyms.list
  37 +dynsyms.list: $(wildcard *.c)
  38 +       files="$(filter-out $(patsubst %.so,%.c,$(TCSO)), $^)" ; \
  39 +       echo "{" > $@ ; \
  40 +       for s in `grep -B 3 '\<dlsym' $$files | sed -n '/snprintf/{s:.*"\([^"]*\)".*:\1:;s:%s::;p}'` ; do \
  41 +               sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:\1;:;p}' $$files ; \
  42 +       done >> $@ ; \
  43 +       echo "show_stats; print_nl; print_tm; parse_rtattr; parse_rtattr_flags; get_u32; matches; addattr_l; addattr_nest; addattr_nest_end; };" >> $@
  44 +
  45  endif