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How to setup a Linux GCC toolchain WITHOUT glibc but with my own std lib
How to setup a Linux GCC toolchain WITHOUT glibc but with my own std libraries?
Fri, 24 Oct 2003 11:09:56 -0700
I had sent this originally to the "address@hidden" mailing list, but a little
browsing of the glibc source showed me some of my unresolved symbols and hence
i am sending this to the GLIBC mailing list. Would appreciate it if somebody
can point me as to how to get the gcc specific portions from glibc and use it
with my 3rd party libraries?
I want to setup a GCC toolchain for a linux box using our own standard C and
C++ libraries(licensed from Dinkumware). My goal is to have a free standing GCC
which uses only the Dinkumware libraries. I am using the cross-compilation path
eventhough i am not actually doing any cross-compilation. I have downloaded the
GCC sources onto my linux box and am configuring and building GCC as follows.
Note that i am building GCC on my target box itself.
I run configure as follows;
../gcc-3.3.2/configure --target=i386-redhat-linux --prefix=/<myhomedir>/gcc
--with-headers=/usr/include --with-libs=/<myhomedir>/lib --enable-threads=single
Note that i give --with-headers as the target system headers, not the
Dinkumware library headers since i don't have platform specific headers(eg.
sys/ucontext.h). If i use my headers then GCC doesn't compile. However i give
my libraries with the --with-libs option since i don't want the installed ones.
I now build and install GCC as;
gmake all-gcc LANGUAGES="c c++"
I now delete the headers which were copied over by the configure script(into
sys-include) and copy over my library headers. A simple "Hello World" test
gives me a lot of unresolved symbols, for example;
undefined reference to `__gxx_personality_v0'
undefined reference to `__cxa_begin_catch'
undefined reference to `__cxa_end_catch'
undefined reference to `__cxa_atexit'
undefined reference to `__cxa_call_unexpected'
It is clear that i am missing some support libraries which are not part of GCC.
What are those libraries and where do i get those from? Do i get it from the
glibc source? I want to use our own standard C & C++ library and so do i need
to build only portions of glibc?
Has somebody done something similar? Am i on the right path? I would appreciate
any and all help.
Sr. Software Engineer,
Performance Analysis - Broadband,
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