Re: [gentoo-user] 32bit-Executables on a AMD64 system...
On Tuesday 09 November 2010, meino.cra...@gmx.de wrote: Hi, it is possible to run a 32-bit binary executable on a 64-bit system (AMD64). yes, if you use the multilib profile. But: Is it possible to compile source code on a 64-bit system and get an 32-bit executable a the result ??? And if 'yes'...how??? cross compiling
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
Enrico Weigelt wrote: * Coert Waagmeester lgro...@waagmeester.co.za wrote: My setup is one 32bit pc with gentoo and another 64bit pc with gentoo I managed to get this going on the 64bit with a 32-bit chroot, distcc, and crosstools Why do you need an 32bit chroot if you're going to use an crosscompiler anyways ? You are right, I only have distcc in the 32bit chroot, it ofcourse already has the 32bit gcc et al. I have a 64bit crossdev setup on my 32 bit machine. that is where the confusion came in. Just make sure you compiled your kernel with IA32 binary support (should be default) The _target_ kernel has to support the IA32 ABI. The host (building) might be better off w/o it (better detection of build errors). How would this work exactly? 64 bit only installation with a 32 bit crossdev installation? cu
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
Coert Waagmeester lgro...@waagmeester.co.za [10-11-10 18:40]: meino.cra...@gmx.de wrote: Hi, it is possible to run a 32-bit binary executable on a 64-bit system (AMD64). But: Is it possible to compile source code on a 64-bit system and get an 32-bit executable a the result ??? And if 'yes'...how??? Thank you very much for any help in advance! Best regards, mcc Hello Meino, My setup is one 32bit pc with gentoo and another 64bit pc with gentoo I managed to get this going on the 64bit with a 32-bit chroot, distcc, and crosstools Just make sure you compiled your kernel with IA32 binary support (should be default) Here are some links: http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1chap=2 http://www.gentoo.org/doc/en/cross-compiling-distcc.xml http://www.gentoo.org/doc/en/distcc.xml http://www.gentoo.org/proj/en/base/embedded/handbook/index.xml?part=1chap=2 Regards, Coert Waagmeester Hi Coert, thanks a lot for your informations and the links! :) I will see, how I will proceed... Best regards mcc
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
* meino.cra...@gmx.de meino.cra...@gmx.de wrote: Is there a toolchain already setup for cross-compiling 32-bit executables on a AMD64 system, or do I have to do all that cross- compiling magic by myself ? crosstool-ng If you want a build system for crosscompiling, you might like to look at Briegel. cu -- -- Enrico Weigelt, metux IT service -- http://www.metux.de/ phone: +49 36207 519931 email: weig...@metux.de mobile: +49 151 27565287 icq: 210169427 skype: nekrad666 -- Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme --
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
* meino.cra...@gmx.de meino.cra...@gmx.de wrote: gr...@kraken ~ $ gcc -o a.out.64 test.c gr...@kraken ~ $ gcc -m32 -o a.out.32 test.c gr...@kraken ~ $ file a.out.* a.out.32: ELF 32-bit LSB executable, Intel 80386, version 1 (GNU/Linux), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped a.out.64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped gr...@kraken ~ $ Br, Maciej Grela Oh YEAH! That's a definition of straight forward I do like very much! Thanks a lot, Maciej! You saved me a lot of half defunct bits ! ;) Only for the specific case that your target system has the same system libraries (and you have a *full* multilib installation) as the building system. If you want to crosscompile, you *most likely* want sysroot too. cu -- -- Enrico Weigelt, metux IT service -- http://www.metux.de/ phone: +49 36207 519931 email: weig...@metux.de mobile: +49 151 27565287 icq: 210169427 skype: nekrad666 -- Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme --
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
* Coert Waagmeester lgro...@waagmeester.co.za wrote: My setup is one 32bit pc with gentoo and another 64bit pc with gentoo I managed to get this going on the 64bit with a 32-bit chroot, distcc, and crosstools Why do you need an 32bit chroot if you're going to use an crosscompiler anyways ? Just make sure you compiled your kernel with IA32 binary support (should be default) The _target_ kernel has to support the IA32 ABI. The host (building) might be better off w/o it (better detection of build errors). cu -- -- Enrico Weigelt, metux IT service -- http://www.metux.de/ phone: +49 36207 519931 email: weig...@metux.de mobile: +49 151 27565287 icq: 210169427 skype: nekrad666 -- Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme --
[gentoo-user] 32bit-Executables on a AMD64 system...
Hi, it is possible to run a 32-bit binary executable on a 64-bit system (AMD64). But: Is it possible to compile source code on a 64-bit system and get an 32-bit executable a the result ??? And if 'yes'...how??? Thank you very much for any help in advance! Best regards, mcc
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
On 9. 11. 2010 18:25, meino.cra...@gmx.de wrote: But: Is it possible to compile source code on a 64-bit system and get an 32-bit executable a the result ??? And if 'yes'...how??? I think that is what cross-compilation is good for... Jarry -- ___ This mailbox accepts e-mails only from selected mailing-lists! Everything else is considered to be spam and therefore deleted.
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
2010/11/9 meino.cra...@gmx.de:
Hi,
it is possible to run a 32-bit binary executable on a 64-bit system
(AMD64).
But: Is it possible to compile source code on a 64-bit system and get
an 32-bit executable a the result ??? And if 'yes'...how???
gr...@kraken ~ $ cat test.c
void main() {}
gr...@kraken ~ $ gcc -o a.out.64 test.c
gr...@kraken ~ $ gcc -m32 -o a.out.32 test.c
gr...@kraken ~ $ file a.out.*
a.out.32: ELF 32-bit LSB executable, Intel 80386, version 1
(GNU/Linux), dynamically linked (uses shared libs), for GNU/Linux
2.6.9, not stripped
a.out.64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux),
dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not
stripped
gr...@kraken ~ $
Br,
Maciej Grela
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
Jarry mr.ja...@gmail.com [10-11-09 18:36]: On 9. 11. 2010 18:25, meino.cra...@gmx.de wrote: But: Is it possible to compile source code on a 64-bit system and get an 32-bit executable a the result ??? And if 'yes'...how??? I think that is what cross-compilation is good for... Jarry -- ___ This mailbox accepts e-mails only from selected mailing-lists! Everything else is considered to be spam and therefore deleted. Is there a toolchain already setup for cross-compiling 32-bit executables on a AMD64 system, or do I have to do all that cross- compiling magic by myself ? Best regards, mcc
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
Maciej Grela maciej.gr...@gmail.com [10-11-09 18:40]:
2010/11/9 meino.cra...@gmx.de:
Hi,
it is possible to run a 32-bit binary executable on a 64-bit system
(AMD64).
But: Is it possible to compile source code on a 64-bit system and get
an 32-bit executable a the result ??? And if 'yes'...how???
gr...@kraken ~ $ cat test.c
void main() {}
gr...@kraken ~ $ gcc -o a.out.64 test.c
gr...@kraken ~ $ gcc -m32 -o a.out.32 test.c
gr...@kraken ~ $ file a.out.*
a.out.32: ELF 32-bit LSB executable, Intel 80386, version 1
(GNU/Linux), dynamically linked (uses shared libs), for GNU/Linux
2.6.9, not stripped
a.out.64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux),
dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not
stripped
gr...@kraken ~ $
Br,
Maciej Grela
Oh YEAH! That's a definition of straight forward I do like very much!
Thanks a lot, Maciej! You saved me a lot of half defunct bits ! ;)
Best regards,
mcc
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
Maciej Grela maciej.gr...@gmail.com [10-11-09 18:40]:
2010/11/9 meino.cra...@gmx.de:
Hi,
it is possible to run a 32-bit binary executable on a 64-bit system
(AMD64).
But: Is it possible to compile source code on a 64-bit system and get
an 32-bit executable a the result ??? And if 'yes'...how???
gr...@kraken ~ $ cat test.c
void main() {}
gr...@kraken ~ $ gcc -o a.out.64 test.c
gr...@kraken ~ $ gcc -m32 -o a.out.32 test.c
gr...@kraken ~ $ file a.out.*
a.out.32: ELF 32-bit LSB executable, Intel 80386, version 1
(GNU/Linux), dynamically linked (uses shared libs), for GNU/Linux
2.6.9, not stripped
a.out.64: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux),
dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not
stripped
gr...@kraken ~ $
Br,
Maciej Grela
Sorry a little offtopic, but: There is kinda nonsense-humor of
gcc in you lines. To call a program, which only consists of void main() {},
to be non stripped is - at least - british understatement (no
punt intended!) :) ;) X-}
Best regards,
mcc
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
Crosstools On Nov 9, 2010 12:39 PM, meino.cra...@gmx.de wrote: Jarry mr.ja...@gmail.com [10-11-09 18:36]: On 9. 11. 2010 18:25, meino.cra...@gmx.de wrote: But: Is it possible to compile source code on a 64-bit system and get an 32-bit executable a the result ??? And if 'yes'...how??? I think that is what cross-compilation is good for... Jarry -- ___ This mailbox accepts e-mails only from selected mailing-lists! Everything else is considered to be spam and therefore deleted. Is there a toolchain already setup for cross-compiling 32-bit executables on a AMD64 system, or do I have to do all that cross- compiling magic by myself ? Best regards, mcc
Re: [gentoo-user] 32bit-Executables on a AMD64 system...
meino.cra...@gmx.de wrote: Hi, it is possible to run a 32-bit binary executable on a 64-bit system (AMD64). But: Is it possible to compile source code on a 64-bit system and get an 32-bit executable a the result ??? And if 'yes'...how??? Thank you very much for any help in advance! Best regards, mcc Hello Meino, My setup is one 32bit pc with gentoo and another 64bit pc with gentoo I managed to get this going on the 64bit with a 32-bit chroot, distcc, and crosstools Just make sure you compiled your kernel with IA32 binary support (should be default) Here are some links: http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1chap=2 http://www.gentoo.org/doc/en/cross-compiling-distcc.xml http://www.gentoo.org/doc/en/distcc.xml http://www.gentoo.org/proj/en/base/embedded/handbook/index.xml?part=1chap=2 Regards, Coert Waagmeester
