xemu/README

The QEMU x86 emulator
---------------------

INSTALLATION
------------

Type 

    ./configure --interp-prefix=/usr/local/qemu-i386
    make

to build qemu and libqemu.a.

Type

    make install

to install QEMU in /usr/local/bin

* On x86 you should be able to launch any program by using the
libraries installed on your PC. For example:

    ./qemu -L / /bin/ls

* On non x86 CPUs, you need first to download at least an x86 glibc
(qemu-XXX-i386-glibc21.tar.gz on the qemu web page). Ensure that
LD_LIBRARY_PATH is not set:

    unset LD_LIBRARY_PATH 

Then you can launch the precompiled 'ls' x86 executable:

    ./qemu /usr/local/qemu-i386/bin/ls-i386

You can look at /usr/local/qemu-i386/bin/qemu-conf.sh so that QEMU is
automatically launched by the Linux kernel when you try to launch x86
executables.

Tested tool versions
--------------------

In order to compile QEMU succesfully, it is very important that you
have the right tools. The most important one is gcc. I cannot guaranty
that QEMU works if you do not use a tested gcc version. Look at
'configure' and 'Makefile' if you want to make a different gcc
version work.

host      gcc      binutils      glibc    linux       distribution
----------------------------------------------------------------------
x86       2.95.2   2.13.2        2.1.3    2.4.18           
          3.2      2.13.2        2.1.3    2.4.18
          2.96     2.11.93.0.2   2.2.5    2.4.18      Red Hat 7.3

PowerPC   2.95.4   2.12.90.0.1   2.2.5    2.4.20-pre2 Debian 3.0

Alpha     3.3 [1]  2.14.90.0.4   2.2.5    2.2.20 [2]  Debian 3.0

Sparc32   2.95.4   2.12.90.0.1   2.2.5    2.4.18      Debian 3.0

ARM       2.95.4   2.12.90.0.1   2.2.5    2.4.9 [3]   Debian 3.0

[1] On Alpha, QEMU needs the gcc 'visibility' attribute only available
    for gcc version >= 3.3.
[2] Linux >= 2.4.20 is necessary for precise exception support
    (untested).
[3] 2.4.9-ac10-rmk2-np1-cerf2

Documentation
-------------

Read the documentation in qemu-doc.html.


Fabrice Bellard.