12-16-2007
Quote:
Originally Posted by
this213
Next, why would you want to create 32-bit objects on a 64-bit platform?
32 bit programs are smaller and faster for programs that don't need more than 2Gig of memory. Most 64 bit processers (DEC Alpha excepted) support both 32bit and 64bit binaries, and most 64 bit operating systems support different memory models simultaneously on a process by process basis.
I've generally found that compilers on 64 bit systems build 32 bit code by default and require additional switches to produce 64 bit code. The linkers are normally able to work out what memory model the code is and will reject attempts to link code with differing models.
7 More Discussions You Might Find Interesting
1. AIX
I've been trying to compile an application that works on AIX 5L in 32 bit mode on an AIX 5L 64 bit mode machine. In doing so I get a lot of undefined symbol errors.
Below is a sample of what the output looks like.....
%make -f makefile_hl7 all
cc... (3 Replies)
Discussion started by: morrisey
3 Replies
2. Red Hat
Hi all,
I'm looking to cover a corner case for an upcoming test cycle. Is there a way to boot a RedHat Advanced Server 4 (update 3) installed on a Power PC machine to use a 32 bit kernel? This would be similar to what is done here -> https://www.unix.com/aix/26204-aix-platform.html
I've done... (0 Replies)
Discussion started by: philrau
0 Replies
3. Linux
Hi,
I am using 32 bit machine, and I want to compile 64 bit application on 32-bit machine.
So please tell me is it possible or not?
Regards
Mandar (7 Replies)
Discussion started by: Mandar123
7 Replies
4. UNIX for Advanced & Expert Users
Hi.
I need to migrate the whole unix environment from a Unix mp-ras 32 bit to a Linux Suse 64 bit.
1) can i use cpio to copy the data?
2) can i just copy the users from unix to linux or do i have to create them by hand
3) are there any other concerns i should worry about?
thanx (1 Reply)
Discussion started by: mrodrig
1 Replies
5. UNIX for Advanced & Expert Users
Hi,
I am compiling Qt-4.7 for 32-bit on 64-bit (x86_64) Ubuntu 8.04 desktop. I have installed all the 32-bit libraries (/lib32 and /usr/lib32) through getlibs and "apt-get install ia32-libs". But I am getting the following error while configuring the qt project as:
./configure -platform... (2 Replies)
Discussion started by: royalibrahim
2 Replies
6. UNIX for Dummies Questions & Answers
Hello everyone. This is an awesome forum. Glad to have joined! :)
I use Linux mostly, even for Desktop usage. I just love everything about it, all the way down to how the font looks while browsing. Its just so sleek and sexy.
But I also boot Windows for those programs I just need that only... (23 Replies)
Discussion started by: insomnia
23 Replies
7. Red Hat
Hi,
I am new to Linux OS. My question is that "is it possible to install 32 Bit application on 64 Bit OS?"
I have the following Redhat OS on VMware workstation.
OS - Red Hat Enterprise Linux Server release 6.2 | 2.6.32-220.el6.x86_64
While installing the application I am getting the... (2 Replies)
Discussion started by: poga
2 Replies
LEARN ABOUT CENTOS
repodiff
repodiff(1) repodiff(1)
NAME
repodiff - list differences between two or more Yum repositories
SYNOPSIS
repodiff --old=old_repo_baseurl --new=new_repo_baseurl
DESCRIPTION
repodiff is a program which will list differences between two sets of repositories. Note that by default only source packages are com-
pared.
GENERAL OPTIONS
--old, -o
Add a repo. as an old repo. Note that if you prefix the url with "mirror:" then the following url is treated as a mirror and not a
baseurl.
--new, -n
Add a repo. as an new repo. Note that if you prefix the url with "mirror:" then the following url is treated as a mirror and not a
baseurl.
--archlist, -a
Add architectures to change the default from just comparing source packages. Note that if you want the same as a native "x86_64"
architecture machine you just need to pass "x86_64" (this is different from earlier versions where you needed to specify
"x86_64,athlon,i686,i586,i486,i386,noarch" and you still got "src").
--size, -s
Output additional data about the size of the changes.
--compare-arch
Normally packages are just compared based on their name, this flag makes the comparison also use the arch. So foo.i386 and
foo.x86_64 are different.
--simple
Output a simple one line message for modified packages.
--downgrade
Split the data for modified packages between upgraded and downgraded packages.
EXAMPLES
Compare source pkgs in two local repos:
repodiff --old=/tmp/repo-old --new=/tmp/repo-new
Compare x86_64 compat. binary pkgs in two remote repos, and two local one:
repodiff -a x86_64 --old=http://example.com/repo1-old --old=/tmp/repo-old --new=http://example.com/repo1-new --new=/tmp/repo-new
Compare x86_64 compat. binary pkgs, but also compare arch:
repodiff -a x86_64 --compare-arch --old=http://example.com/repo1-old --old=/tmp/repo-old --new=http://example.com/repo1-new
--new=/tmp/repo-new
Compare two releases of Fedora (15 => 16):
repodiff --old='mirror:https://mirrors.fedoraproject.org/metalink?repo=fedora-source-15&arch=i386' --new='mirror:https://mir-
rors.fedoraproject.org/metalink?repo=fedora-source-16&arch=i386' --size --simple --downgrade
SEE ALSO
yum.conf (5)
http://yum.baseurl.org/
AUTHORS
See the Authors file included with this program.
BUGS
There are of course no bugs, but should you find any, you should first consult the FAQ section on http://yum.baseurl.org/wiki/Faq and if
unsuccessful in finding a resolution contact the mailing list: yum-devel@lists.baseurl.org. To file a bug use http://bugzilla.redhat.com
for Fedora/RHEL/Centos related bugs and http://yum.baseurl.org/report for all other bugs.
James Antill 21 October 2008 repodiff(1)