Thanks Stefan for your answer. Would it be possible to statically link libc into my project?
Amadeo -----Original Message----- From: Stefan Kalkowski [mailto:[email protected]] Sent: Tuesday, March 15, 2011 1:16 PM To: [email protected] Subject: Re: Use of malloc primitives in Genode Hello Amadeo, if you really want to use stdlib's malloc and free, you'll have to link against our 'libc'. The 'mini_c' library you've choosen doesn't provide malloc/free. It's just a small dummy library for the png-library in our demo-repository, that provides a few string-handling functions. If you only need malloc/free without additional libc functionality, there is a simple implementation in our C++ support-library in: base/src/base/cxx/malloc_free.cc which uses the heap-allocator from Genode's base environment. To not clash with the definition of e.g. the implementation in the 'libc' both symbols are hidden after linking the C++ support library, so you cannot use it directly, but it might help you as a starting point, if you don't want to link against whole 'libc'. Regards Stefan On 03/15/2011 08:53 PM, Amadeo Cuadrado wrote: > Hello, > > > > When I try to build the app below in Genode, the following linking error > happens: > > > > main.o: In function `main': > > .../main.cc:6: undefined reference to `malloc(unsigned int)' > > .../main.cc:8: undefined reference to `free(void*)' > > > > What am I missing here? Thanks! > > > > Amadeo > > > > > > :::::::::::::: > > main.cc > > :::::::::::::: > > #include <stdlib.h> > > > > #define N 10 > > > > int main(void) { > > int *v = (int *) malloc(N*sizeof(int)); > > for (int i=0; i<N; i++) v[i] = i; > > free(v); > > } > > :::::::::::::: > > target.mk > > :::::::::::::: > > TARGET = foo > > SRC_CC = main.cc > > LIBS = cxx env mini_c > > > > > > ------------------------------------------------------------------------------ > Colocation vs. Managed Hosting > A question and answer guide to determining the best fit > for your organization - today and in the future. > http://p.sf.net/sfu/internap-sfd2d > > > > _______________________________________________ > Genode-main mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/genode-main -- Stefan Kalkowski Genode Labs http://www.genode-labs.com/ · http://genode.org/ Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Genode-main mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/genode-main ------------------------------------------------------------------------------ Colocation vs. Managed Hosting A question and answer guide to determining the best fit for your organization - today and in the future. http://p.sf.net/sfu/internap-sfd2d _______________________________________________ Genode-main mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/genode-main
