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dropbear: compile with LTO enabled 

Reduces size of the .ipk on MIPS from 87k to 84k

Signed-off-by: Felix Fietkau <nbd@nbd.name>
master
Felix Fietkau 2018-07-11 19:28:54 +02:00
parent ef96d1e34a
commit 47b42137ce
2 changed files with 35 additions and 2 deletions
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4
package/network/services/dropbear/Makefile
View File

@ -86,8 +86,8 @@ CONFIGURE_ARGS += \
$(if $(CONFIG_DROPBEAR_ZLIB),,--disable-zlib) \
--enable-bundled-libtom
TARGET_CFLAGS += -DARGTYPE=3 -ffunction-sections -fdata-sections
TARGET_LDFLAGS += -Wl,--gc-sections
TARGET_CFLAGS += -DARGTYPE=3 -ffunction-sections -fdata-sections -flto
TARGET_LDFLAGS += -Wl,--gc-sections -flto=jobserver
define Build/Configure
$(Build/Configure/Default)

33
package/network/services/dropbear/patches/160-lto-jobserver.patch Normal file
View File

@ -0,0 +1,33 @@
--- a/Makefile.in
+++ b/Makefile.in
@@ -163,17 +163,17 @@ dropbearkey: $(dropbearkeyobjs)
dropbearconvert: $(dropbearconvertobjs)
dropbear: $(HEADERS) $(LIBTOM_DEPS) Makefile
- $(CC) $(LDFLAGS) -o $@$(EXEEXT) $($@objs) $(LIBTOM_LIBS) $(LIBS) @CRYPTLIB@
+ +$(CC) $(LDFLAGS) -o $@$(EXEEXT) $($@objs) $(LIBTOM_LIBS) $(LIBS) @CRYPTLIB@
dbclient: $(HEADERS) $(LIBTOM_DEPS) Makefile
- $(CC) $(LDFLAGS) -o $@$(EXEEXT) $($@objs) $(LIBTOM_LIBS) $(LIBS)
+ +$(CC) $(LDFLAGS) -o $@$(EXEEXT) $($@objs) $(LIBTOM_LIBS) $(LIBS)
dropbearkey dropbearconvert: $(HEADERS) $(LIBTOM_DEPS) Makefile
- $(CC) $(LDFLAGS) -o $@$(EXEEXT) $($@objs) $(LIBTOM_LIBS)
+ +$(CC) $(LDFLAGS) -o $@$(EXEEXT) $($@objs) $(LIBTOM_LIBS)
# scp doesn't use the libs so is special.
scp: $(SCPOBJS) $(HEADERS) Makefile
- $(CC) $(LDFLAGS) -o $@$(EXEEXT) $(SCPOBJS)
+ +$(CC) $(LDFLAGS) -o $@$(EXEEXT) $(SCPOBJS)
# multi-binary compilation.
@@ -184,7 +184,7 @@ ifeq ($(MULTI),1)
endif
dropbearmulti$(EXEEXT): $(HEADERS) $(MULTIOBJS) $(LIBTOM_DEPS) Makefile
- $(CC) $(LDFLAGS) -o $@ $(MULTIOBJS) $(LIBTOM_LIBS) $(LIBS) @CRYPTLIB@
+ +$(CC) $(LDFLAGS) -o $@ $(MULTIOBJS) $(LIBTOM_LIBS) $(LIBS) @CRYPTLIB@
multibinary: dropbearmulti$(EXEEXT)