Re: [avr-gcc-list] avr-libc

[Francois Lorrain]

Hello,

I think there might be something going on (or I am doing the same mistake), after trying to create a recent version of the AVR compiler, I am getting :

$ avr-gcc -v test.c
Using built-in specs.
COLLECT_GCC=avr-gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/avr/4.7.2/lto-wrapper
Target: avr
Configured with: /usr/src/gcc-4_7-branch/configure -v --enable-languages=c,c++ --enable-shared --with-system-zlib --enable-long-long --enable-nls --without-included-gettext --disable-libssp --target=avr
Thread model: single
gcc version 4.7.2 20120802 (prerelease) (GCC)
COLLECT_GCC_OPTIONS='-v'
 /usr/local/libexec/gcc/avr/4.7.2/cc1 -quiet -v test.c -quiet -dumpbase test.c -auxbase test -version -o /tmp/ccs8LCB0.s
GNU C (GCC) version 4.7.2 20120802 (prerelease) (avr)
        compiled by GNU C version 4.7.1, GMP version 5.0.5, MPFR version 3.1.0-p10, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/lib/gcc/avr/4.7.2/../../../../avr/sys-include"
ignoring nonexistent directory "/usr/local/lib/gcc/avr/4.7.2/../../../../avr/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/lib/gcc/avr/4.7.2/include
 /usr/local/lib/gcc/avr/4.7.2/include-fixed
End of search list.
GNU C (GCC) version 4.7.2 20120802 (prerelease) (avr)
        compiled by GNU C version 4.7.1, GMP version 5.0.5, MPFR version 3.1.0-p10, MPC version 0.9
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 7512b8302895f73b499cc5d82f175245
COLLECT_GCC_OPTIONS='-v'
 as -o /tmp/ccUYrflj.o /tmp/ccs8LCB0.s
/tmp/ccs8LCB0.s: Assembler messages:
/tmp/ccs8LCB0.s:13: Error: too many memory references for `in'
/tmp/ccs8LCB0.s:14: Error: too many memory references for `in'
/tmp/ccs8LCB0.s:19: Error: no such instruction: `ldi r24,0'
/tmp/ccs8LCB0.s:20: Error: no such instruction: `ldi r25,0'

I am on debian wheezy with the package provided avr-binutils and avr-libc. 

The test program is just : 

int main () {
return 0;
}

Here the compiler is using "as"(x86)  instead of "avr-as" so it cannot compile the assembler output of the compiler.

so either there is a missing option to the configure script for gcc. Do we need to provide --program-prefix=avr- configure option ?

Regards

Francois

On Thu, Aug 2, 2012 at 3:06 PM, Kaan Akşit <address@hidden> wrote:

Dear Senthil,

Unfortunately, I still have the same error in avr-libc compilation :( Here is the result of a sample compilation after following your tutorial:

address@hidden ~ $ avr-gcc -mmcu=atmega8 -v -c test.c

Using built-in specs.
COLLECT_GCC=avr-gcc
Target: avr

Configured with: ../gcc-4.7.1/configure --target=avr --mandir=/usr/share/man --datadir=/usr/share -enable-languages=c,c++ --disable-nls --disable-libssp --with-dwarf2 --with-system-zlib --enable-vrsion-specific-runtime-libs --with-pkgversion='Pardus Linux' --with-bugurl=http://bugs.pardus.org.r

Thread model: single
gcc version 4.7.1 (Pardus Linux)
COLLECT_GCC_OPTIONS='-mmcu=atmega8' '-v' '-c'

 /usr/local/libexec/gcc/avr/4.7.1/cc1 -quiet -v -imultilib avr4 test.c -quiet -dumpbase test.c -mmu=atmega8 -auxbase test -version -o /tmp/ccEgUGtP.s

GNU C (Pardus Linux) version 4.7.1 (avr)
        compiled by GNU C version 4.5.3, GMP version 5.0.1, MPFR version 2.4.2, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072

ignoring nonexistent directory "/usr/local/lib/gcc/avr/4.7.1/../../../../avr/sys-include"
ignoring nonexistent directory "/usr/local/lib/gcc/avr/4.7.1/../../../../avr/include"

#include "..." search starts here:
#include <...> search starts here:

 /usr/local/lib/gcc/avr/4.7.1/include
 /usr/local/lib/gcc/avr/4.7.1/include-fixed

End of search list.
GNU C (Pardus Linux) version 4.7.1 (avr)
        compiled by GNU C version 4.5.3, GMP version 5.0.1, MPFR version 2.4.2, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072

Compiler executable checksum: 722643b1134bcec91c9603abb6d176ac
COLLECT_GCC_OPTIONS='-mmcu=atmega8' '-v' '-c'
 /usr/local/lib/gcc/avr/4.7.1/../../../../avr/bin/as -mmcu=atmega8 -mno-skip-bug -o test.o /tmp/ccgUGtP.s
COMPILER_PATH=/usr/local/libexec/gcc/avr/4.7.1/:/usr/local/libexec/gcc/avr/4.7.1/:/usr/local/libexc/gcc/avr/:/usr/local/lib/gcc/avr/4.7.1/:/usr/local/lib/gcc/avr/:/usr/local/lib/gcc/avr/4.7.1/.././../../avr/bin/
LIBRARY_PATH=/usr/local/lib/gcc/avr/4.7.1/avr4/:/usr/local/lib/gcc/avr/4.7.1/:/usr/local/lib/gcc/ar/4.7.1/../../../../avr/lib/
COLLECT_GCC_OPTIONS='-mmcu=atmega8' '-v' '-c'

Is there anything I might be missing something?

Kaan

2012/8/1 Senthil Kumar Selvaraj <address@hidden>

On Wed, Aug 01, 2012 at 03:19:58PM +0300, Kaan Akşit wrote:
> I am really confused because if I do not set any prefix during
> configuration; both avr-gcc and avr-binutils will use /usr/local which
> means default is not the supported way.
>
> So to give an example if I use prefix /usr/local for avr-binutils, should I
> be using something outside of /usr/local ? For example /usr/share/avr.
> Then I need to export both /usr/local and /usr/share/avr as PATH? Did I get
> i right?

You are confusing the object/build directory with the install/prefix
directory. The object/build directory is the one from which you run the
configure script. It is different from the prefix directory, which
specifies where the built binaries go when you run "make install".

For GCC, the build directory must not be a subdirectory of the source
directory.

Let's take it step by step. Let's say you extracted the binutils source
to ~/src/binutils

[~] cd ~
[~] mkdir install
[~] mkdir build-binutils && cd build-binutils
[build-binutils] pwd
~/build-binutils
[build-binutils] ../src/binutils/configure --target=avr --prefix=/home/user/install
--disable-nls
[build-binutils] make && make install

This builds and installs binutils binaries into ~/install/bin (or whatever
dir you give as the prefix)

Now add the install folder to the path
[~] export PATH=~/install/bin:$PATH

Assuming gcc is in ~/src/gcc

[~] mkdir build-gcc && cd build-gcc
[build-gcc] pwd
~/build-gcc
[build-gcc] ../src/gcc/configure --target=avr --enable-languages=c
--prefix=/home/user/install
[build-gcc] make && make install

This should build gcc and install avr-gcc and related binaries into
~/install/bin

Assuming avr-libc is in ~/src/avr-libc

[~] cd ~/src/avr-libc
[~/src/avr-libc] ./configure --prefix=/home/user/install --host=avr
--build=<your build machine arch>
[~/src/avr-libc] make and make install

should do the job.

Essentially, for binutils and particularly gcc, the build folder from
which you run the configure script must not be a subdir of source. Make
sure you specify the same prefix for all three configure invocations.

Hope this helps.

Regards
Senthil

>
> Kaan
>
> 2012/8/1 Senthil Kumar Selvaraj <address@hidden>
>
> > On Wed, Aug 01, 2012 at 12:35:47PM +0300, Kaan Akşit wrote:
> > > I am using below code to configure avr-gcc, I don't understand what is
> > > wrong with it:
> > >
> > > ../configure --target=avr --mandir=/usr/share/man --datadir=/usr/share
> > > --prefix=/usr/share/avr --enable-languages="c,c++" --disable-nls
> > > --disable-libssp --with-dwarf2 --with-system-zlib
> > > --enable-version-specific-runtime-libs --with-pkgversion="Pardus Linux"
> > > --with-bugurl=http://bugs.pardus.org.tr
> > >
> > > Kaan
> >
> > Running configure from within a subdirectory of the gcc source directory
> > (as inferred from ../configure) is
> > not supported. See http://gcc.gnu.org/install/configure.html. You need
> > to create a directory outside the toplevel source directory for GCC and
> > run configure from there.
> >
> > Regards
> > Senthil
> >
> > >
> > > 2012/8/1 Georg-Johann Lay <address@hidden>
> > >
> > > > Kaan Akşit schrieb:
> > > >
> > > >
> > > >  $ avr-gcc -mmcu=atmega8 -v -c demo.c
> > > >> Using built-in specs.
> > > >> COLLECT_GCC=avr-gcc
> > > >> Target: avr
> > > >> Configured with: ../configure --target=avr --mandir=/usr/share/man
> > > >>
> > > >
> > > > You still configure in the source tree which is not supported.
> > > >
> > > > Johann
> > > >
> >

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