Re: powerpc-linux gcc build error

[Ganesh dot Tawde at relianceinfo dot com]

Hello Gerhard,

Thanks for the patch .... i applied hte patch and was able to build the
compiler successfully ...

and thanks all for the help provided ...

BTW, I have listed down the steps that I followed to build the
linux-powerpc cross compiler. I though may be this will help others like me
who are caught up with cross compiler build errors. I konw there are many
scripts around, but this is just one more attempt to simplify things. Hope
this will help. I am appending the text here as well as attaching the file.
I would like to mention that the steps listed in the document are borrowed
from Dan Kegel's cross compiling page
(www.pages.drexel.edu/~sg64/stuff/cross-compile.htm) and
www.cs.duke.edu/~irwin/gcc_ppc.html.


Rgds,
Ganesh

(See attached file: GCC_crosscompiler_buildprocess.txt)

====================================================================


 Building GCC Cross compiler for Power PC - linux
-----------------------------------------------


Download the latest tars binutils, glibc, glibc-linuxthreads, gcc from the
gnu website - ftp://ftp.gnu.org
create a working forlder (say F1) for your build. Inside that (F1), create
a source folder and keep all the tars in that folder.
Now untar each of the tars (binutils, gcc and glibc) in the working folder
F1. Untar the glibc-linuxthreads in the glibc folder.

tar x{z|j}vf "tar file name"

Go into your kernel source directory (usually in /usr/src/linux-version).
Go into the include directory and change the asm sym-link to point to
asm-ppc (to get the kernel/sys call headers for the ppc).

ln -s asm-ppc asm


A) Build Binutils:

As most of the sites suggest, start by building the toolchain in separate
directories from where you downloaded and unzipped the sources. So, I do
build-binutils, build-gcc and so on... Also, you can specify the PATH you
want the cross-compiled binaries to go with --prefix option. The most
convenient way is to do configure --help to know the oft needed arguments
for configuration. The next step is to configure the binutils for powerpc
as target.


mkdir build-binutils & cd build-binutils
../binutils-2.14/configure --target=powerpc-linux
--prefix=/opt/crossgcc/powerpc-linux
make all install

After binutils is done, add the cross-compiled binaries to your PATH by

export PATH=$PATH:/opt/crossgcc/powerpc-linux/bin


B) Build Minimal GCC:

mkdir build-gcc & cd build-gcc
../gcc-3.3.2/configure --target=powerpc-linux
--prefix=/opt/crossgcc/powerpc-linux --disable-shared --disable-threads
--enable-languages=c --with-newlib
make all-gcc install-gcc

We faced a error here where the compilation was asking for a header file
'signal.h' which is present in the glibc package but wsa not available as
glibc was not yet build. The error was displayed as follows.

===================================
make \
  CFLAGS="-g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -pedantic -Wno-long-long  " \
  CONFIG_H="config.h  auto-host.h ../../gcc-3.4.0
/gcc/../include/ansidecl.h" \
  MAKEOVERRIDES= \
  -f libgcc.mk all
make[2]: Entering directory `/root/ppc_crossgcc/gcc/build-gcc/gcc'
for d in libgcc nof libgcc/nof; do \
  if [ -d $d ]; then true; else /bin/sh ../../gcc-3.4.0/gcc/mkinstalldirs
$d; fi; \
done
mkdir -p -- libgcc
mkdir -p -- nof
mkdir -p -- libgcc/nof
if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
/root/ppc_crossgcc/gcc/build-gcc/gcc/xgcc
-B/root/ppc_crossgcc/gcc/build-gcc/gcc/
-B/opt/crossgcc/powerpc-linux/powerpc-linux/bin/
-B/opt/crossgcc/powerpc-linux/powerpc-linux/lib/ -isystem
/opt/crossgcc/powerpc-linux/powerpc-linux/include -isystem
/opt/crossgcc/powerpc-linux/powerpc-linux/sys-include -O2  -DIN_GCC
-DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc
-I. -I -I../../gcc-3.4.0/gcc -I../../gcc-3.4.0/gcc/ -I../../gcc-3.4.0
/gcc/../include   -fPIC -mstrict-align -DL_muldi3 -c ../../gcc-3.4.0
/gcc/libgcc2.c -o libgcc/./_muldi3.o
In file included from ./tm.h:10,
                 from ../../gcc-3.4.0/gcc/libgcc2.c:43:
../../gcc-3.4.0/gcc/config/rs6000/linux.h:100:20: signal.h: No such file or
directory
In file included from ./tm.h:10,
                 from ../../gcc-3.4.0/gcc/libgcc2.c:43:
../../gcc-3.4.0/gcc/config/rs6000/linux.h:109: error: parse error before
"stack_t"
../../gcc-3.4.0/gcc/config/rs6000/linux.h:109: warning: no semicolon at end
of struct or union
../../gcc-3.4.0/gcc/config/rs6000/linux.h:111: error: parse error before
"uc_sigmask"
../../gcc-3.4.0/gcc/config/rs6000/linux.h:111: warning: type defaults to
`int' in declaration of `uc_sigmask'
../../gcc-3.4.0/gcc/config/rs6000/linux.h:111: warning: data definition has
no type or storage class
../../gcc-3.4.0/gcc/config/rs6000/linux.h:110: error: storage size of
`uc_mcontext' isn't known
make[2]: *** [libgcc/./_muldi3.o] Error 1
make[2]: Leaving directory `/root/ppc_crossgcc/gcc/build-gcc/gcc'
make[1]: *** [stmp-multilib] Error 2
make[1]: Leaving directory `/root/ppc_crossgcc/gcc/build-gcc/gcc'
make: *** [all-gcc] Error 2

=========================================

To get rid of this error, applied the following patch .

=========================================

--- gcc-3.4.0/gcc/config/rs6000/linux.h.orig    2004-10-03
05:43:56.000000000 +0200
+++ gcc-3.4.0/gcc/config/rs6000/linux.h 2005-02-09 14:36:33.000000000 +0100
@@ -104,6 +104,8 @@
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */

+#ifndef inhibit_libc
+
 #ifdef IN_LIBGCC2
 #include <signal.h>

@@ -187,3 +189,5 @@ enum { SIGNAL_FRAMESIZE = 64 };
     (FS)->retaddr_column = CR0_REGNO;                                  \
     goto SUCCESS;                                                      \
   } while (0)
+
+#endif /* inhibit_libc */

=========================================


After this, the compilation should proceed without any problems.

You can very well cross-compile Linux kernel with this minimal gcc, though
may not be able to compile other applications.



C) Build Glibc

After the minimal gcc is done; the next major step is to cross-compile
glibc. I have had troubles compiling glibc in the past what with some of
the patches not being applied to the glibc tree. But after some help from
googling, I was able to put the right combination of arguments in place. Be
sure to download glibc-linuxthreads and unzip it in the glibc source
directory. I found out that glibc needs linuxthreads to compile correctly.
It might not be this way but I could not compile it otherwise. So, here is
what to do

If compiled as is, glibc would give a compile error for glibc-2.3.2
/stdio-common/sscanf.c ... you have to change the parameter declaration for
sscaf function in sscanf.c. In glibc-2.3.2/stdio-common/sscanf.c change the
parameter declaration for the sscanf function to
"int sscanf (const char *s, const char *format, ...)";
delete the former declaration which should be
"int sscanf(s, f) const char*s; const char* format;" (or something similar
to that).

In the build-glibc directory run...

mkdir build-glibc & cd build-glibc
../glibc-2.3.2/configure --prefix=/opt/crossgcc/powerpc-linux
--target=powerpc-linux --host=powerpc-linux --enable-add-ons=linuxthreads
--with-headers=/usr/src/linux-"version"/include/
--with-binutils=/opt/crossgcc/powerpc-linux/powerpc-linux/bin
make all install

It should be a breeze after that.
It was worth noting that --target option does not work with glibc, you have
to use --host={target-platform}-linux for glibc to work.



D) Build complete GCC
After glibc is compiled, you can reconfigure gcc as

../gcc-3.4.0/configure --target=powerpc-linux
--prefix=/opt/crossgcc/powerpc-linux --enable-shared --enable-threads
--enable-languages=c --with-cpu=405 --without-fp
--with-libs=/opt/crossgcc/powerpc-linux/lib
make all install



Now you should have a complete working version of gcc.


=====================================================================










                                                                                                                           
                      Gerhard Jaeger                                                                                       
                      <g.jaeger@sysgo.c        To:       crossgcc@sources.redhat.com                                       
                      om>                      cc:       Ganesh.Tawde@relianceinfo.com                                     
                                               Subject:  Re: powerpc-linux gcc build error                                 
                      07/22/2005 12:24   Importance: Normal  Sender's OU: Reliance |------------------|                    
                      PM                                                           | [ ] Confidential |                    
                                                                                   |------------------|                    
                                                                                                                           




On Thursday 21 July 2005 14:24, Ganesh.Tawde@relianceinfo.com wrote:
> Hi,
>
> I am trying to build a cross compiler toolset for powerpc-linux on a RH9
> Linux machine. The binutils builds fine. When it comes to building the
gcc
> core, I get the following error. I m using gcc-3.4.0, binutils-2.14,
> glibc-2.3.2 and glibc-linuxthreads-2.3.2.
>
> =======================================================
> /root/ppc_crossgcc/build-gcc/gcc/xgcc -B/root/ppc_crossgcc/build-gcc/gcc/
> -B/opt/crossgcc/powerpc-linux/powerpc-linux/bin/
> -B/opt/crossgcc/powerpc-linux/powerpc-linux/lib/ -isystem
> /opt/crossgcc/powerpc-linux/powerpc-linux/include -isystem
> /opt/crossgcc/powerpc-linux/powerpc-linux/sys-include -O2 -DIN_GCC
> -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -I. -I.
> -I../../gcc-3.4.0/gcc -I../../gcc-3.4.0/gcc/. -I../../gcc-3.4.0
> /gcc/../include   -g0 -finhibit-size-directive -fno-inline-functions
> -fno-exceptions -fno-zero-initialized-in-bss -fno-unit-at-a-time -fPIC
> -msdata=none \
>   -Dinhibit_libc -c ../../gcc-3.4.0/gcc/crtstuff.c -DCRT_END
-DCRTSTUFFS_O
> \
>   -o crtendS.o
> make \
>   CFLAGS="-g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes -pedantic -Wno-long-long  " \
>   CONFIG_H="config.h  auto-host.h ../../gcc-3.4.0
> /gcc/../include/ansidecl.h" \
>   MAKEOVERRIDES= \
>   -f libgcc.mk all
> make[2]: Entering directory `/root/ppc_crossgcc/build-gcc/gcc'
> for d in libgcc nof libgcc/nof; do \
>   if [ -d $d ]; then true; else /bin/sh ../../gcc-3.4.0/gcc/mkinstalldirs
> $d; fi; \
> done
> mkdir -p -- libgcc
> mkdir -p -- nof
> mkdir -p -- libgcc/nof
> if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
> /root/ppc_crossgcc/build-gcc/gcc/xgcc -B/root/ppc_crossgcc/build-gcc/gcc/
> -B/opt/crossgcc/powerpc-linux/powerpc-linux/bin/
> -B/opt/crossgcc/powerpc-linux/powerpc-linux/lib/ -isystem
> /opt/crossgcc/powerpc-linux/powerpc-linux/include -isystem
> /opt/crossgcc/powerpc-linux/powerpc-linux/sys-include -O2  -DIN_GCC
> -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -g
> -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I
> -I../../gcc-3.4.0/gcc -I../../gcc-3.4.0/gcc/ -I../../gcc-3.4.0
> /gcc/../include   -fPIC -mstrict-align -DL_muldi3 -c ../../gcc-3.4.0
> /gcc/libgcc2.c -o libgcc/./_muldi3.o
> In file included from ./tm.h:10,
>                  from ../../gcc-3.4.0/gcc/libgcc2.c:43:
> ../../gcc-3.4.0/gcc/config/rs6000/linux.h:100:20: signal.h: No such file
or
> directory
> In file included from ./tm.h:10,
>                  from ../../gcc-3.4.0/gcc/libgcc2.c:43:
> ../../gcc-3.4.0/gcc/config/rs6000/linux.h:109: error: parse error before
> "stack_t"
> ../../gcc-3.4.0/gcc/config/rs6000/linux.h:109: warning: no semicolon at
end
> of struct or union
> ../../gcc-3.4.0/gcc/config/rs6000/linux.h:111: error: parse error before
> "uc_sigmask"
> ../../gcc-3.4.0/gcc/config/rs6000/linux.h:111: warning: type defaults to
> `int' in declaration of `uc_sigmask'
> ../../gcc-3.4.0/gcc/config/rs6000/linux.h:111: warning: data definition
has
> no type or storage class
> ../../gcc-3.4.0/gcc/config/rs6000/linux.h:110: error: storage size of
> `uc_mcontext' isn't known
> make[2]: *** [libgcc/./_muldi3.o] Error 1
> make[2]: Leaving directory `/root/ppc_crossgcc/build-gcc/gcc'
> make[1]: *** [stmp-multilib] Error 2
> make[1]: Leaving directory `/root/ppc_crossgcc/build-gcc/gcc'
> make: *** [all-gcc] Error 2
>
> =======================================================
>
>
> Googling on this error gave me some results with similar error faced
before
> by many people but could not find a proper solution.
> I am using the build procedure as listed in
>
> http://www.pages.drexel.edu/~sg64/stuff/cross-compile.htm
>
> and also this one
>
> http://www.cs.duke.edu/~irwin/gcc_ppc.html
>
> and also referring to Bill Gatliff's script.
>
> I also tried copying signal.h from other folders but still get errors as
> the build proceeds.
>
> Any help would be appreciated.
>
> Rgds,
> Ganesh

You might want to try the patch below (maybe you need to tweak it for
3.4.0 as it's for 3.4.3), but I think the idea behind will become
clear.

HTH
Gerhard

--
Gerhard Jaeger <gjaeger@sysgo.com>
SYSGO AG                      Embedded and Real-Time Software
www.sysgo.com | www.elinos.com | www.pikeos.com | www.osek.de

--- gcc-3.4.3/gcc/config/rs6000/linux.h.orig    2004-10-03
05:43:56.000000000 +0200
+++ gcc-3.4.3/gcc/config/rs6000/linux.h 2005-02-09 14:36:33.000000000 +0100
@@ -104,6 +104,8 @@
 /* Do code reading to identify a signal frame, and set the frame
    state data appropriately.  See unwind-dw2.c for the structs.  */

+#ifndef inhibit_libc
+
 #ifdef IN_LIBGCC2
 #include <signal.h>

@@ -187,3 +189,5 @@ enum { SIGNAL_FRAMESIZE = 64 };
     (FS)->retaddr_column = CR0_REGNO;                                  \
     goto SUCCESS;                                                      \
   } while (0)
+
+#endif /* inhibit_libc */

Attachment: GCC_crosscompiler_buildprocess.txt
Description: Binary data

------
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