-m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

-m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[John P. Hartmann]

Building a cross compiler from i686 (the platform of my linux) to s390
I get the following when the bootstrap process is configuring in
s390-ibm-linux/libgcc:

configure:3268: /usr/ports/gcc390/build460/./gcc/xgcc
-B/usr/ports/gcc390/build460/./gcc/
-B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
-B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
/usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
/usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -c -g -O2
conftest.c >&5
exec: 89: -m31: not found

I configured with:

/usr/src/gcc-4.6.0/configure --prefix=/usr/ports/gcc390/inst
--target=s390-ibm-linux --host=i686-pc-linux-gnu

However, once the directory is in the path, the bootstrap compiler
does work as far as doing

   u@ubuntu:~/src/testing$ /usr/ports/gcc390/build460/gcc/xgcc -S x.c

an even

   u@ubuntu:~/src/testing$ /usr/ports/gcc390/build460/gcc/xgcc -m31 -S x.c
   u@ubuntu:~/src/testing$ /usr/ports/gcc390/build460/gcc/xgcc -m64 -S x.c

and what is more, the two invocations generate the expected assembler
for return 0x1000000.

But the error is reproducible:

   u@ubuntu:~/src/testing$ /usr/ports/gcc390/build460/gcc/xgcc x.c
   exec: 89: -m31: not found

there is no 89 or c89 in the gcc directory.

Re: -m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[Ian Lance Taylor]

"John P. Hartmann" <jphartmann@gmail.com> writes:

> Building a cross compiler from i686 (the platform of my linux) to s390
> I get the following when the bootstrap process is configuring in
> s390-ibm-linux/libgcc:
>
> configure:3268: /usr/ports/gcc390/build460/./gcc/xgcc
> -B/usr/ports/gcc390/build460/./gcc/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -c -g -O2
> conftest.c >&5
> exec: 89: -m31: not found

This looks like you don't have a cross-assembler.  You need to make and
install the GNU binutils first with the same --host, --target, and
--prefix options.  Then start again with gcc in a brand new empty build
directory.

Ian

Re: -m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[John P. Hartmann]

Thanks, Ian.  That brought me further, but still no cigar.  Does the
following ring a bell?

/usr/ports/gcc390/build460/./gcc/xgcc
-B/usr/ports/gcc390/build460/./gcc/
-B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
-B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
/usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
/usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -g -O2 -O2  -g
-O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition  -isystem ./include  -fPIC -g
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
-fno-stack-protector -Dinhibit_libc -mlong-double-128 -I. -I.
-I../.././gcc -I/usr/src/gcc-4.6.0/libgcc
-I/usr/src/gcc-4.6.0/libgcc/. -I/usr/src/gcc-4.6.0/libgcc/../gcc
-I/usr/src/gcc-4.6.0/libgcc/../include
-I/usr/src/gcc-4.6.0/libgcc/../libdecnumber/dpd
-I/usr/src/gcc-4.6.0/libgcc/../libdecnumber -DHAVE_CC_TLS  -o
decContext.o -MT decContext.o -MD -MP -MF decContext.dep -c
/usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c

/usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c:33:43: fatal
error: string.h: No such file or directory
compilation terminated.

So I looked for string.h in the source:

u@ubuntu:/usr/src/gcc-4.6.0$ find . -name 'string.h'
./libssp/ssp/string.h
./fixincludes/tests/base/string.h
./libstdc++-v3/include/c_compatibility/string.h


On 21 May 2011 16:31, Ian Lance Taylor <iant@google.com> wrote:
> "John P. Hartmann" <jphartmann@gmail.com> writes:
>
>> Building a cross compiler from i686 (the platform of my linux) to s390
>> I get the following when the bootstrap process is configuring in
>> s390-ibm-linux/libgcc:
>>
>> configure:3268: /usr/ports/gcc390/build460/./gcc/xgcc
>> -B/usr/ports/gcc390/build460/./gcc/
>> -B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
>> -B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
>> /usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
>> /usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -c -g -O2
>> conftest.c >&5
>> exec: 89: -m31: not found
>
> This looks like you don't have a cross-assembler.  You need to make and
> install the GNU binutils first with the same --host, --target, and
> --prefix options.  Then start again with gcc in a brand new empty build
> directory.
>
> Ian
>

Re: -m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[Ian Lance Taylor]

"John P. Hartmann" <jphartmann@gmail.com> writes:

> Thanks, Ian.  That brought me further, but still no cigar.  Does the
> following ring a bell?
>
> /usr/ports/gcc390/build460/./gcc/xgcc
> -B/usr/ports/gcc390/build460/./gcc/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -g -O2 -O2  -g
> -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
> -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
> -Wold-style-definition  -isystem ./include  -fPIC -g
> -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
> -fno-stack-protector -Dinhibit_libc -mlong-double-128 -I. -I.
> -I../.././gcc -I/usr/src/gcc-4.6.0/libgcc
> -I/usr/src/gcc-4.6.0/libgcc/. -I/usr/src/gcc-4.6.0/libgcc/../gcc
> -I/usr/src/gcc-4.6.0/libgcc/../include
> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber/dpd
> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber -DHAVE_CC_TLS  -o
> decContext.o -MT decContext.o -MD -MP -MF decContext.dep -c
> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c
>
> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c:33:43: fatal
> error: string.h: No such file or directory
> compilation terminated.

string.h has to come from a C library.  gcc does not include one.

Since you are trying to build a cross-compiler to a GNU/Linux system,
you may want to look at http://crosstool.org/ .

Ian

Re: -m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[Ian Lance Taylor]

"John P. Hartmann" <jphartmann@gmail.com> writes:

> Thanks, Ian.  That brought me further, but still no cigar.  Does the
> following ring a bell?
>
> /usr/ports/gcc390/build460/./gcc/xgcc
> -B/usr/ports/gcc390/build460/./gcc/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -g -O2 -O2  -g
> -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
> -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
> -Wold-style-definition  -isystem ./include  -fPIC -g
> -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
> -fno-stack-protector -Dinhibit_libc -mlong-double-128 -I. -I.
> -I../.././gcc -I/usr/src/gcc-4.6.0/libgcc
> -I/usr/src/gcc-4.6.0/libgcc/. -I/usr/src/gcc-4.6.0/libgcc/../gcc
> -I/usr/src/gcc-4.6.0/libgcc/../include
> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber/dpd
> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber -DHAVE_CC_TLS  -o
> decContext.o -MT decContext.o -MD -MP -MF decContext.dep -c
> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c
>
> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c:33:43: fatal
> error: string.h: No such file or directory
> compilation terminated.

string.h has to come from a C library.  gcc does not include one.

Since you are trying to build a cross-compiler to a GNU/Linux system,
you may want to look at http://crosstool.org/ .

Ian

Re: -m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[Ian Lance Taylor]

"John P. Hartmann" <jphartmann@gmail.com> writes:

> Thanks, Ian.  That brought me further, but still no cigar.  Does the
> following ring a bell?
>
> /usr/ports/gcc390/build460/./gcc/xgcc
> -B/usr/ports/gcc390/build460/./gcc/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
> -B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
> /usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -g -O2 -O2  -g
> -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
> -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
> -Wold-style-definition  -isystem ./include  -fPIC -g
> -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
> -fno-stack-protector -Dinhibit_libc -mlong-double-128 -I. -I.
> -I../.././gcc -I/usr/src/gcc-4.6.0/libgcc
> -I/usr/src/gcc-4.6.0/libgcc/. -I/usr/src/gcc-4.6.0/libgcc/../gcc
> -I/usr/src/gcc-4.6.0/libgcc/../include
> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber/dpd
> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber -DHAVE_CC_TLS  -o
> decContext.o -MT decContext.o -MD -MP -MF decContext.dep -c
> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c
>
> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c:33:43: fatal
> error: string.h: No such file or directory
> compilation terminated.

string.h has to come from a C library.  gcc does not include one.

Since you are trying to build a cross-compiler to a GNU/Linux system,
you may want to look at http://crosstool.org/ .

Ian

Re: -m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[John P. Hartmann]

Thanks Ian.

http://wiki.osdev.org/GCC_Cross-Compiler suggested
--enable-languages=c,c++ --without-headers --disable-nls but that made
no difference.  So I gave the target a symbolic link to /usr/include,
and then it failed in linking because of missing object decks.  Seems
like the process is building something I didn't ask for, or at least
do not want.

What I am after is in fact a cross compiler to s390 os/360 object
(well, the variety that supports long ESD names--and not the old MVS
attempt.)  As I already have a cross assembler, I guess I should
simply take the intermediary xgcc and run.

I did come across crosstool in my googling, as well as a number of
sites bemoaning the quality of documentation of gnu cross compiling.

On 22 May 2011 05:52, Ian Lance Taylor <iant@google.com> wrote:
> "John P. Hartmann" <jphartmann@gmail.com> writes:
>
>> Thanks, Ian.  That brought me further, but still no cigar.  Does the
>> following ring a bell?
>>
>> /usr/ports/gcc390/build460/./gcc/xgcc
>> -B/usr/ports/gcc390/build460/./gcc/
>> -B/usr/ports/gcc390/inst/s390-ibm-linux/bin/
>> -B/usr/ports/gcc390/inst/s390-ibm-linux/lib/ -isystem
>> /usr/ports/gcc390/inst/s390-ibm-linux/include -isystem
>> /usr/ports/gcc390/inst/s390-ibm-linux/sys-include    -g -O2 -O2  -g
>> -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wwrite-strings
>> -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
>> -Wold-style-definition  -isystem ./include  -fPIC -g
>> -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
>> -fno-stack-protector -Dinhibit_libc -mlong-double-128 -I. -I.
>> -I../.././gcc -I/usr/src/gcc-4.6.0/libgcc
>> -I/usr/src/gcc-4.6.0/libgcc/. -I/usr/src/gcc-4.6.0/libgcc/../gcc
>> -I/usr/src/gcc-4.6.0/libgcc/../include
>> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber/dpd
>> -I/usr/src/gcc-4.6.0/libgcc/../libdecnumber -DHAVE_CC_TLS  -o
>> decContext.o -MT decContext.o -MD -MP -MF decContext.dep -c
>> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c
>>
>> /usr/src/gcc-4.6.0/libgcc/../libdecnumber/decContext.c:33:43: fatal
>> error: string.h: No such file or directory
>> compilation terminated.
>
> string.h has to come from a C library.  gcc does not include one.
>
> Since you are trying to build a cross-compiler to a GNU/Linux system,
> you may want to look at http://crosstool.org/ .
>
> Ian
>

Re: -m31 rejected when building libgcc for cross compiler for s390 (31 bit) gcc 4.6.0

[Jeffrey Walton]

On Sun, May 22, 2011 at 4:14 AM, John P. Hartmann <jphartmann@gmail.com> wrote:
> Thanks Ian.
>
> http://wiki.osdev.org/GCC_Cross-Compiler suggested
> --enable-languages=c,c++ --without-headers --disable-nls but that made
> no difference.  So I gave the target a symbolic link to /usr/include,
> and then it failed in linking because of missing object decks.  Seems
> like the process is building something I didn't ask for, or at least
> do not want.
>
> What I am after is in fact a cross compiler to s390 os/360 object
> (well, the variety that supports long ESD names--and not the old MVS
> attempt.)  As I already have a cross assembler, I guess I should
> simply take the intermediary xgcc and run.
>
> I did come across crosstool in my googling, as well as a number of
> sites bemoaning the quality of documentation of gnu cross compiling.
Information on [modern] cross compiling is horrible. If I recall,
crosstools is terribly out of date (or at least the website). Have you
looked at crosstoolng (http://freshmeat.net/projects/crosstool-ng/)?

An up to date book, including cross-compilation, would be very
welcomed (hint to Ian and Jonathon).

Jeff

[SNIP]