libcrypto/openssl : Which to use
adit267.kousik at ...9...
Fri May 8 02:08:00 CEST 2015
I've made some progress.
1. I manually defined CRYPTOPP_UNIX_AVAILABLE in cryptopp's config.h
temporarily which allowed much of the cryptopp library to get build freely.
This also resolved undefined references to 'AutoSeededRandomPool::Reseed'
2. Compilation of ndn-cxx goes fine (after adding ndn-cxx-config.hpp).
The final set of errors are undefined references. I'm facing similar
problems to the article written about porting SDL_net.
undefined references to 'kqueue', 'kevent' and 'sendmsg'.
There was initially an extra undefined reference to if_nametoindex and
if_indextoname (I changed libc_net.mk to add these to SRC_C). They were in
turn dependent on getifaddrs and freeifaddrs which was solved by adding
getifaddrs.c to SRC_C.
I've found a few implementations of kqueue(), kevent() in the original libc
repository : they're defined in kern_event.c which is not present in the
current libc port. Same for sendmsg. I've been trying to add kevent and
kqueue by changing the libc port by adding sys/kern to the list of exports
and adding a mk file for the libc-kern component. I'm wondering if I should
go to the extent of doing this because just by looking at the code I can
see that there will be a cascade of dependencies within sys/kern itself
that I now have to deal with. Suggestions would help - I'm kind of lost
with this exact decision that was mentioned in porting SDL_net.
The weirdest part in this, is that I can't seem to find the place in the
ndn-cxx code that even makes a call or even includes sys/event.h. I grepped
the words 'kqueue', 'kevent' and 'sendmsg' and they're present in the
object files but nowhere to be found in the source files!
Part 2: Since the contrib/library-<hash>/ folder has both include/ as well
as src/ folder, which one actually becomes the INC_DIR in .mk file? Because
whatever changes I made when I set the include/ folder as INC_DIR were not
getting reflected during compilation. So, there's a side query about that.
Sorry for the long post. I just feel that I'm close to the finish line.
On Thu, May 7, 2015 at 12:06 AM, Christian Helmuth <
christian.helmuth at ...1...> wrote:
> Hello Aditya,
> from what I discovered I fear you have to do some additional porting
> work as the building produces several errors. Please try "make
> --keep-going ..." to see them all and get about 2000 lines of warnings
> and errors (mostly from cryptopp). The most suspicious messages from
> ndn-cxx are
> In member function ‘virtual void
> ndn::SecTpmFile::generateKeyPairInTpm(const ndn::Name&, const
> error: ‘AutoSeededRandomPool’ was not declared in this scope
> In file included from
> error: #error "This files should not be compiled ..."
> fatal error: CoreFoundation/CoreFoundation.h: No such file or directory
> For the first issue please have a look at the following lines in
> 8 #ifdef OS_RNG_AVAILABLE
> 155 #endif
> It seems the define is not set in your case and so the contents of the
> header are not includes in the build. To find this kind of problems I
> suggest to modify the compilation of the broken source file to just do
> the preprocessor step (compiler flag -E) and analyze the result. In
> your case I was looking for AutoSeededRandomPool, which was not there.
> Good luck
> Christian Helmuth
> Genode Labs
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