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authorTony Ambardar <itugrok@yahoo.com>2018-12-13 23:49:32 -0800
committerKevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>2019-02-11 20:18:48 +0000
commit248797834bf21916ddf663edc96d86ee5377850e (patch)
tree636f0be1a55ac9ebc84a0a087a52aab9ad724110 /package/network/utils/iproute2/patches
parentfc80ef3613465e60257a5ddf0674debe45b09180 (diff)
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iproute2: tc: reduce size of dynamic symbol table
In the case of SHARED_LIBS=y, don't use -export-dynamic to place *all* symbols into the dynamic symbol table. Instead, use --dynamic-list to export a smaller set of symbols similar to that defined in static-syms.h in the case of SHARED_LIBS=n, avoiding an 11 KB tc package size increase. Also increment PKG_RELEASE. Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Diffstat (limited to 'package/network/utils/iproute2/patches')
-rw-r--r--package/network/utils/iproute2/patches/175-reduce-dynamic-syms.patch44
1 files changed, 44 insertions, 0 deletions
diff --git a/package/network/utils/iproute2/patches/175-reduce-dynamic-syms.patch b/package/network/utils/iproute2/patches/175-reduce-dynamic-syms.patch
new file mode 100644
index 0000000000..f5c41bc6f4
--- /dev/null
+++ b/package/network/utils/iproute2/patches/175-reduce-dynamic-syms.patch
@@ -0,0 +1,44 @@
+--- a/tc/Makefile
++++ b/tc/Makefile
+@@ -107,7 +107,7 @@ LDLIBS += -L. -lm
+
+ ifeq ($(SHARED_LIBS),y)
+ LDLIBS += -ldl
+-LDFLAGS += -Wl,-export-dynamic
++LDFLAGS += -Wl,--dynamic-list=dynsyms.list
+ endif
+
+ TCLIB := tc_core.o
+@@ -137,7 +137,7 @@ MODDESTDIR := $(DESTDIR)$(LIBDIR)/tc
+ all: tc $(TCSO)
+
+ tc: $(TCOBJ) $(LIBNETLINK) libtc.a
+- $(QUIET_LINK)$(CC) $^ $(LDFLAGS) $(LDLIBS) -o $@
++ $(QUIET_LINK)$(CC) $(filter-out dynsyms.list, $^) $(LDFLAGS) $(LDLIBS) -o $@
+
+ libtc.a: $(TCLIB)
+ $(QUIET_AR)$(AR) rcs $@ $^
+@@ -159,6 +159,7 @@ install: all
+ clean:
+ rm -f $(TCOBJ) $(TCLIB) libtc.a tc *.so emp_ematch.yacc.h; \
+ rm -f emp_ematch.yacc.*
++ rm -f dynsyms.list
+
+ q_atm.so: q_atm.c
+ $(QUIET_CC)$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fpic -o q_atm.so q_atm.c -latm
+@@ -198,4 +199,15 @@ static-syms.h: $(wildcard *.c)
+ sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:extern char \1[] __attribute__((weak)); if (!strcmp(sym, "\1")) return \1;:;p}' $$files ; \
+ done > $@
+
++else
++
++tc: dynsyms.list
++dynsyms.list: $(wildcard *.c)
++ files="$(filter-out $(patsubst %.so,%.c,$(TCSO)), $^)" ; \
++ echo "{" > $@ ; \
++ for s in `grep -B 3 '\<dlsym' $$files | sed -n '/snprintf/{s:.*"\([^"]*\)".*:\1:;s:%s::;p}'` ; do \
++ sed -n '/'$$s'[^ ]* =/{s:.* \([^ ]*'$$s'[^ ]*\) .*:\1;:;p}' $$files ; \
++ done >> $@ ; \
++ echo "show_stats; print_tm; parse_rtattr; };" >> $@
++
+ endif