Hi Rui,
I imagine it could be helpful if you use sstrip[0] on the created
binaries to give a clearer size comparison.
[0]: https://github.com/BR903/ELFkickers/blob/master/sstrip/
Best,
Paul
On 22.07.20 03:31, Rui Salvaterra wrote:
If not needed, disabling scp allows for a nice size reduction.
Dropbear executable size comparison:
153621 bytes (baseline)
133077 bytes (without scp)
In other words, we trim a total of 20544 bytes.
[Note: This patch is on top of
"dropbear: fix ssh alternative when dbclient isn't built"]
Signed-off-by: Rui Salvaterra <rsalvate...@gmail.com>
---
package/network/services/dropbear/Config.in | 4 ++++
package/network/services/dropbear/Makefile | 8 +++++---
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/package/network/services/dropbear/Config.in
b/package/network/services/dropbear/Config.in
index 0ac84ee206..b9ecbc815b 100644
--- a/package/network/services/dropbear/Config.in
+++ b/package/network/services/dropbear/Config.in
@@ -102,4 +102,8 @@ config DROPBEAR_DBCLIENT
bool "Build dropbear with dbclient"
default y
+config DROPBEAR_SCP
+ bool "Build dropbear with scp"
+ default y
+
endmenu
diff --git a/package/network/services/dropbear/Makefile
b/package/network/services/dropbear/Makefile
index edd20909b1..8b57b214ae 100644
--- a/package/network/services/dropbear/Makefile
+++ b/package/network/services/dropbear/Makefile
@@ -31,7 +31,7 @@ PKG_CONFIG_DEPENDS:= \
CONFIG_DROPBEAR_RSA CONFIG_DROPBEAR_CURVE25519 CONFIG_DROPBEAR_ZLIB \
CONFIG_DROPBEAR_ED25519 CONFIG_DROPBEAR_CHACHA20POLY1305 \
CONFIG_DROPBEAR_UTMP CONFIG_DROPBEAR_PUTUTLINE \
- CONFIG_DROPBEAR_DBCLIENT
+ CONFIG_DROPBEAR_DBCLIENT CONFIG_DROPBEAR_SCP
include $(INCLUDE_DIR)/package.mk
@@ -53,7 +53,9 @@ define Package/dropbear
CATEGORY:=Base system
TITLE:=Small SSH2 client/server
DEPENDS:= +DROPBEAR_ZLIB:zlib
- ALTERNATIVES:=100:/usr/bin/scp:/usr/sbin/dropbear
+ ALTERNATIVES:=
+ $(if $(CONFIG_DROPBEAR_SCP),ALTERNATIVES+= \
+ 100:/usr/bin/scp:/usr/sbin/dropbear,)
$(if $(CONFIG_DROPBEAR_DBCLIENT),ALTERNATIVES+= \
100:/usr/bin/ssh:/usr/sbin/dropbear,)
@@ -149,7 +151,7 @@ endef
define Build/Compile
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \
- PROGRAMS="dropbear $(if $(CONFIG_DROPBEAR_DBCLIENT),dbclient,)
dropbearkey scp" \
+ PROGRAMS="dropbear $(if $(CONFIG_DROPBEAR_DBCLIENT),dbclient,)
dropbearkey $(if $(CONFIG_DROPBEAR_SCP),scp,)" \
MULTI=1 SCPPROGRESS=1
+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
$(TARGET_CONFIGURE_OPTS) \
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