libssp is the run-time Stack-Smashing Protection library.
It can be usefull to have or miss, depends...
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
libgomp is the GNU implementation of the OpenMP API.
It can be usefull to have or miss, depends...
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Force gcc to not link with some companion libraries when
there are not needed (because selected-out).
There is no option to tell gcc *not* to build the Graphite and/or
LTO stuff. They *will* be built if gcc finds the suitable companion
libraries. If we do not provide them, but the host has them, then
gcc *will* find them, and link with them.
Consider the following:
- host has suitable PPL and CLooG (eg. Debian Squeeze)
- user wants to build gcc>=4.4
- user de-selects GRAPHITE
- gcc will find the hosts PPL and CLooG, and will use them
- the user moves the toolchain to an older host that does
not have them (eg. Debian Lenny)
- the toolchain fails, when it was properly setup not to
So, explicitly tell gcc *not* to use unneeded companion libs.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
While GMP and MPFR are required by gcc>=4.3 (to build the frontends),
and MPC is required by gcc>=4.5, the other libs are not. If they are
present then gcc will enable advanced features; if they are missing,
then gcc will (should) simply disable those features.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
For some scenarii, libmudflap is not very usefull
or can break the build. Make in an optioon that
defaults to 'N' to be on the safe side.
For the core gcc-s, there is absolutely no need
to build libmidflap.
Idea from: Bernhard Pfund <bernhard@chapter7.ch>
When building a cross-compiler for a target which uses a file extension for
binaries the symbolic link to cc is not created correctly because the lookup
of the gcc binary is done in a incorrect path
Signed-off-by: Bart vdr. Meulen <bartvdrmeulen@gmail.com>
Add the option to build a cross-compiler for kernel type 'mingw'.
The resulting cross-compiler can be used to build applications on a Linux host
that can be run on a Windows target.
Compiler is build using the mingwrt and w32-api packages aviable from the
MinGW project (http://sourceforge.net/projects/mingw).
The windows headers (w32-api package) are extracting with the kernel_headers
step The libraries and other headers from both packages are build and
installed in the various steps of libc
Signed-off-by: Bart vdr Meulen <bartvdrmeulen@gmail.com>
[yann.morin.1998@anciens.enib.fr: fix kernel headers comment, don't "return 0"]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Here, we implement a highly ugly hack. I'm not proud of that one...
To build the libstdc++ library, the compiler requires the C library. In
case we build for non-baremetal, this is normally handled by the final
step, later.
But in the case of bare-metal, we never go through the final step (because
it does not work, and it seems complex enough to make it work), so the
baremetal compilers are issued out of the core step.
While compiling a canadian toolchain for host=mingw32, build=linux,
target=m68k-elf the build fails because in this step of the gcc build
the Host compiler is used in this stage with the build-flags for the
build system. This results in an error where the header <sys/wait.h>
cannot be found.
This problem happens at least in the GCC-4.3.x and GCC-4.4.x range.
This is solved by passing the proper compilers on the Make cmd-line
Signed-off-by: Remy Bohmer <linux@bohmer.net>
Previous addition of the canadian cross compiler did not allow
to build a baremetal only variant, no reason why this is not
allowed
Signed-off-by: Bart vdr. Meulen <bartvdrmeulen@gmail.com>
When building a cross-compiler for a host which depends
on file extensions the symlink for cc was not installed correctly
Signed-off-by: Bart vdr. Meulen <bartvdrmeulen@gmail.com>
[Yann E. MORIN: style fixes, enhancements, code prettying]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
When building for bare-metal the core-gcc compiler is delivered
as final compiler, so the version info and bugurl is useful
in the core compiler as well.
Signed-off-by: Remy Bohmer <linux@bohmer.net>
If threads are disabled in libc, we don't want to enable them in the
final compiler. Doing so pass the configure stage, but fails latter on
a missing <pthread.h>.
Moreover, we don't want to build libgomp if threads are disabled; its
configure script would fails anyway.
Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>
Add implementation for a candadian build option already
present in crosstool in order to build a cross-compiler
where build != host != target
Signed-off-by: Bart van der Meulen <bartvdrmeulen@gmail.com>
Initial patch by Dmitry PLOTNIKOV: http://sourceware.org/ml/crossgcc/2009-03/msg00053.html
It [the toolchain] uses current ct-ng (nightly snapshot 20090324, latest
release 1.3.2 work also), glibc 2.9 (from CVS), binutils 2.19 and latest
snapshot of GCC 4.4.0 (as of March 20, 2009).
We have successfully built linux kernel 2.6.29 and a lot of other stuff
with this toolchain.
Here's the patch that adds GCC 4.4.0 to the ct-ng menu and enables it to
download a 4.4.0 snapshot from ftp.
Patch was adpated by me, mostly to better fit the configuration layout.
/trunk/scripts/build/cc/gcc.sh | 34 22 12 0 ++++++++++++++++++++++------------
/trunk/config/cc/gcc.in | 35 30 5 0 ++++++++++++++++++++++++++++++-----
2 files changed, 52 insertions(+), 17 deletions(-)
Andy JOHNSON wrote:
The Java compiler for GCC versions 4.3.0 and up requires the
Eclipse compiler "ecj1" to be built as well. I added "gcj" to
the list of utilities to make the initial link.
/trunk/scripts/build/cc/gcc.sh | 12 12 0 0 ++++++++++++
/trunk/scripts/crosstool.sh | 2 1 1 0 +-
/trunk/config/cc/gcc.in | 6 6 0 0 ++++++
3 files changed, 19 insertions(+), 1 deletion(-)
This helps those who want to relocate their toolchains later.
Reported by Nye Liu: http://sourceware.org/ml/crossgcc/2008-10/msg00093.html
/trunk/scripts/build/cc/gcc.sh | 2 1 1 0 +-
1 file changed, 1 insertion(+), 1 deletion(-)
