Hi,
I'm trying to statically link hello to learn about footprint.
I peeked at the instructions at
http://redmine.webtoolkit.eu/projects/wt/wiki/Wt_embedded, I haven't
applied all of them, but I feel I'm quite far from the results listed on
that page as my exe is about 5 MB. (intel x86-64)
The thing that I do not seem to get under control is using libc (and maybe
some other libs) dynamically.
E.g. with this command:
g++ -O2 -o hello hello.C -static -lwthttp -lwt -lstdc++ -lboost_signals
-lz \
-lssl -lcrypto -lboost_thread -lboost_filesystem
-lboost_program_options -lboost_date_time -lpthread -lboost_regex \
-lboost_system -lrt -ldl -licudata -licui18n -licuuc -Bdynamic -lz -lm
-Bdynamic -lc
I still end up with a fully statically linked executable.
The other thing that somewhat concerns me are these linker messages:
/usr/lib64/libcrypto.a(dso_dlfcn.o): In function `dlfcn_load':
(.text+0x5c4): warning: Using 'dlopen' in statically linked applications
requires at runtime the shared libraries from the glibc version used for
linking
/usr/lib64/libwthttp.a(Server.o): In function `getaddrinfo':
/usr/include/boost/asio/detail/socket_ops.hpp:1809: warning: Using
'getaddrinfo' in statically linked applications requires at runtime the
shared libraries from the glibc version used for linking
Anyone any pointers on how to improve my results
(and yes, I know there are some things in the wiki that I have not tried).
Rationale for going static is that this is the only C++ app in my target
system, so I'd rather have only those parts of the lib that I really use.
(and I came to the list of libs above by dynamically linking and doing ldd
-v hello
Thanks in advance for any suggestions!
Frans
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