The sad news is that the LEMON_C_COMPILER variable is a mini hack and I
doubt it can be arm twisted to support your use case.
On 17/01/22 16:14, Glen Huang wrote:
Sure,
This is the compilation error I got
gcc -DNDEBUG -L/sdk/staging_dir/toolchain-x86_64_gcc-8.4.0_musl/usr/lib
-L/sdk/staging_dir/toolchain-x86_64_gcc-8.4.0_musl/lib -znow -zrelro -fPIE -pie
CMakeFiles/lemon.dir/lemon.c.o -o ../../run/lemon
/usr/bin/ld:
/usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/Scrt1.o: in function
`_start':
(.text+0x12): undefined reference to `__libc_csu_fini'
/usr/bin/ld: (.text+0x19): undefined reference to `__libc_csu_init'
collect2: error: ld returned 1 exit status
I don’t think musl should show up here, since my build machine is Debian.
On Jan 17, 2022, at 10:09 PM, João Valverde <j...@v6e.pt> wrote:
Hi,
You would have a better chance of receiving helpful feedback on the CMake side
of things if you also described the actual error in detail.
On 17/01/22 02:01, Glen Huang wrote:
Hi,
I’m trying to create an OpenWrt package for Wireshark.
I think I’m pretty close. However, I got stuck at lemon, which if I’m not
wrong, should be compiled by my build machine’s compiler. From the source code,
I found out it supports the LEMON_C_COMPILER variable, which I assigned with
the build machine’s compiler, but after compiling, CMAKE used the target
platform’s linking flags for linking, which apparently failed. I’m not very
familiar with CMAKE, so would appreciate some help.
Cross-compiling has cropped up here a few times in the past decades, but the
ones I managed to find are all pertaining to Wireshark’s autotools era, so
they’re not particularly helpful, at least for my limited knowledge in this
area.
Here is the OpenWrt package’s Makefile I have come up with so far:
include $(TOPDIR)/rules.mk
PKG_NAME:=wireshark
PKG_VERSION:=3.6.1
PKG_RELEASE:=1
PKG_SOURCE_URL:=https://www.wireshark.org/download/src/
PKG_SOURCE:=wireshark-$(PKG_VERSION).tar.xz
PKG_HASH:=0434eda8fb6bf88e2b42a67eb5d1de254a67d505bec3bb51fee9d7cad7925a38
PKG_BUILD_PARALLEL:=1
CMAKE_INSTALL:=1
include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk
define Package/wireshark
SECTION:=net
CATEGORY:=Network
TITLE:=Network protocol analyzer
URL:=https://www.wireshark.org/
DEPENDS:=+libpcap +glib2 +libgcrypt +libcares
endef
define Package/wireshark/description
Network protocol analyzer
endef
CMAKE_OPTIONS += \
-DCMAKE_CROSSCOMPILING=1 \
-DHAVE_C99_VSNPRINTF=TRUE \
-DLEMON_C_COMPILER=$(CMAKE_HOST_C_COMPILER) \
-DBUILD_wireshark=OFF \
-DBUILD_androiddump=OFF \
-DBUILD_ciscodump=OFF \
-DBUILD_idl2wrs=OFF
define Package/wireshark/install
# figure out later
endef
$(eval $(call BuildPackage,wireshark))
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