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OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/linux32?expand=0&rev=8

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OBS User unknown 2009-07-10 14:20:29 +00:00 committed by Git OBS Bridge
parent d6c660977a
commit 3129075540
4 changed files with 8 additions and 186 deletions
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55
linux32.1
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@ -1,55 +0,0 @@
.TH LINUX32 1 "May 2002" "SuSE Labs" "Linux User's Manual"
.SH NAME
linux32 \- Set i686 uname emulation processes.
linux64 \- Reset uname emulation
.SH SYNOPSIS
.B linux32
[
.B \-\-3gb
]
[
.B \-\-4gb
]
command arguments...
.br
.B linux64
command arguments...
.br
.SH DESCRIPTION
.I linux32
changes the personality of command and all its children to
return
.I i686
instead of
.I x86_64
in
.I uname -a.
This is useful to fool shell scripts or programs that check for the architecture
explicitely into believing that they run on a true
.I i686
system.
In addition it moves the top of stack of the 32bit child processes to
.I 0xc0000000.
This is useful to execute some broken applications that break when
the stack top is at 4GB. On the other hand it limits the usable heap
memory more than necessary.
When
.I --4gb
is specified this is not done.
.I linux64
resets the uname personality to default.
.SH SEE ALSO
.I uname(1)
.I uname(2)
.I personality(2)

69
linux32.c
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@ -1,69 +0,0 @@
/* Written 2002 by Andi Kleen */
#include <sys/personality.h>
#include <unistd.h>
#include <string.h>
#include <libgen.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
/* Make --3gb the default for buggy Java */
#define STUPID_DEFAULT 1
#ifdef STUPID_DEFAULT
#define DFL_PER PER_LINUX32_3GB
#else
#define DFL_PER PER_LINUX32
#endif
#define ADDR_LIMIT_3GB 0x8000000
#define PER_LINUX32_3GB (0x0008 | ADDR_LIMIT_3GB)
int main(int ac, char **av)
{
int pers = DFL_PER;
char *progname;
progname = basename(av[0]);
if (!strcmp(progname, "linux64")) {
pers= PER_LINUX;
/* ignore --3gb or --4gb for linux64 */
if (av[1] && (!strcmp(av[1], "--3gb") || !strcmp(av[1], "--4gb")))
av++;
}
else if (!strcmp(progname,"linux32")) {
pers = DFL_PER;
if (av[1] && !strcmp(av[1], "--3gb")) {
pers = PER_LINUX32_3GB;
av++;
}
if (av[1] && !strcmp(av[1], "--4gb")) {
pers = PER_LINUX32;
av++;
}
}
if (!av[1]) {
if (pers == PER_LINUX) { /* 64 bit, no options */
fprintf(stderr, "usage: %s program args ...\n", progname);
} else {
fprintf(stderr, "usage: %s [--3gb] [--4gb] program args ...\n", progname);
#if DFL_PER == PER_LINUX32_3GB
fprintf(stderr, "Default is --3gb to limit the address space of the 32bit children to 3GB\n");
#endif
}
exit(1);
}
if (personality(pers) < 0) {
fprintf(stderr, "Cannot set %x personality: %s\n", pers,
strerror(errno));
exit(1);
}
execvp(av[1],av+1);
fprintf(stderr, "Cannot execute %s: %s\n", av[1], strerror(errno));
exit(1);
}

6
linux32.changes
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@ -1,3 +1,9 @@
-------------------------------------------------------------------
Wed Jul 8 10:25:03 CEST 2009 - coolo@novell.com
- remove linux32 binaries and require new util-linux, leave the package
as convenience
-------------------------------------------------------------------
Wed Apr 22 15:50:47 CEST 2009 - sf@suse.de

64
linux32.spec
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@ -24,14 +24,12 @@ License: GPL v2 or later
Group: System/Kernel
Summary: 32-Bit Emulation Utility for x86-64
Version: 1.0
Release: 476
Release: 477
BuildRoot: %{_tmppath}/%{name}-%{version}-build
ExclusiveArch: x86_64
#Recommends: kdebase3
Source0: linux32.c
Source1: linux32.1
Source2: %name.desktop
Source3: konsole-linux32.png
Requires: util-linux >= 2.16
%description
This is a small tool for 32-bit emulation in Linux/x86-64. It allows
@ -47,73 +45,15 @@ Authors:
Andi Kleen <ak@suse.de>
%prep
mkdir -p linux32
cd linux32
cp $RPM_SOURCE_DIR/linux32.c .
cp $RPM_SOURCE_DIR/linux32.1 .
%build
cd linux32
gcc $RPM_OPT_FLAGS -o linux32 linux32.c
%install
cd linux32
mkdir -p $RPM_BUILD_ROOT/usr/bin $RPM_BUILD_ROOT/usr/share/man/man1
cp linux32 $RPM_BUILD_ROOT/usr/bin
cp linux32.1 $RPM_BUILD_ROOT/usr/share/man/man1
( cd $RPM_BUILD_ROOT/usr/share/man/man1 ; ln -s linux32.1.gz linux64.1.gz )
cd $RPM_BUILD_ROOT/usr/bin
ln linux32 linux64
%suse_update_desktop_file -i %name TerminalEmulator
%files
%defattr(-,root,root)
/usr/bin/linux32
/usr/bin/linux64
/usr/share/man/man1/linux32.1.gz
/usr/share/man/man1/linux64.1.gz
/usr/share/applications/*
/usr/share/pixmaps/*
%changelog
* Wed Apr 22 2009 sf@suse.de
- quote command in linux32.desktop correctly (bnc #496724)
* Wed Nov 05 2008 sf@suse.de
- fix desktop file to start in an xterm - for non-KDE-user
(bnc #408320)
* Tue Nov 04 2008 coolo@suse.de
- remove outdated translations
* Tue Oct 21 2008 kukuk@suse.de
- Build only on x86-64
- Fix at least on destkop file entry
* Wed Oct 10 2007 bwalle@suse.de
- fix some problems (#188554)
o make linux64 working even if it's called with the full path
o don't switch magically to linux32 if linux64 is called with
arguments (--3gb/--4gb)
o fix segmentation fault
* Wed Mar 01 2006 sf@suse.de
- added -32bit to name and generics name in .desktop file (#52279)
* Wed Jan 25 2006 mls@suse.de
- converted neededforbuild to BuildRequires
* Tue Nov 23 2004 adrian@suse.de
- install icon file for desktop entry
* Sun Aug 03 2003 adrian@suse.de
- install the desktop file according to XDG instead of susewm
* Fri Jun 20 2003 ak@suse.de
- add linux32.1 as Source
* Thu Jun 19 2003 ak@suse.de
- eliminate README.linux32
- use RPM_OPT_FLAGS
* Thu Jun 19 2003 ak@suse.de
- fix neededforbuild
- make --3gb the default
- add manpage
- use hardlink for linux64
* Thu Jun 05 2003 ak@suse.de
- add --3gb support (needs kernel patch)
- fix error handling
* Thu Feb 20 2003 adrian@suse.de
- add menu entry for 32 bit shell in System/Terminals/
* Fri May 10 2002 stepan@suse.de
- initial version