MMU for Leon project (16.12.2002-16.3.2003):

Programmer: Konrad Eisele [eiselekd@web.de]
Funding: Gaisler research (www.gaisler.com)

How to compile the sparc-leon-linux cross-compiler:

[back]
[download gnu tools]
[download patches]

Assuming that you are in a working directory [base] and
assuming you have the following files in subdir tarballs: 
[base]/tarballs/binutils-2.13.tar.gz 
[base]/tarballs/gcc-core-3.2.2.tar.gz 
[base]/tarballs/linux-2.5.59.tar.gz 
[base]/tarballs/newlib-1.11.0.tar.gz 
[base]/tarballs/uClibc-0.9.19.tar.gz 
[base]/tarballs/binutils-2.13-leon01.diff 
[base]/tarballs/gcc-3.2.2-leon01.diff 
[base]/tarballs/linux-2.5.59-leon01.diff 
[base]/tarballs/uClibc-0.9.19-leon01.diff
 
do the following commands: 

$cd [base] 
$tar xzf tarballs/binutils-2.13.tar.gz 
$tar xzf tarballs/gcc-core-3.2.2.tar.gz 
$tar xzf tarballs/linux-2.5.59.tar.gz 
$tar xzf tarballs/uClibc-0.9.19.tar.gz 
$cp -al binutils-2.13 binutils-2.13-patch 
$cp -al gcc-3.2.2 gcc-3.2.2-patch 
$cp -al linux-2.5.59 linux-2.5.59-patch 
$cp -al uClibc-0.9.19 uClibc-0.9.19-patch 
$cat tarballs/binutils-2.13-leon01.diff | patch -d binutils-2.13-patch -p1 
$cat tarballs/gcc-3.2.2-leon01.diff | patch -d gcc-3.2.2-patch -p1 
$cat tarballs/linux-2.5.59-leon01.diff | patch -d linux-2.5.59-patch -p1 
$cat tarballs/uClibc-0.9.19-leon01.diff | patch -d uClibc-0.9.19-patch -p1 
$find . -type f| xargs chmod a-w 
$mkdir [base]/tools 
$mkdir [base]/build-bin 
$mkdir [base]/build-gcc 
$cd [base]/uClibc-0.9.19-patch 

At this point edit CROSS macro in Rules.mak:  
"CROSS=sparc-rtems-" 
(Because we have no sparc-leon-linux-gcc yet use the sparc-rtems-xx tools from lecc (at www.gaisler.com)) 

$make menuconfig 

At this point select the clib options with menuconfig or my hand.  
The following 2 options could look like this:  
DEVEL_PREFIX="[base]/tools/gcc-3.2.2/sparc-leon-linux"		 ::where the headers should be clib and linux installed 
KERNEL_SOURCE="[linux]"								 ::where the linux sources root can be found 
A .config template is appended at the bottom of this page 

$make all $make install 
$cd [base]/build-bin 
$../binutils-2.13-patch/configure --target=sparc-leon-linux \ 
--prefix=[base]/tools/gcc-3.2.2                                    :: adjust your $PATH  $make all $make install 
$cd [base]/build-gcc 
$../gcc-3.2.2-patch/configure --target=sparc-leon-linux --with-gnu-as --with-gnu-ld --verbose \ 
--prefix=[base]/tools/gcc-3.2.2 \ 						 ::adjust this to the place your $PATH points to 
--enable-threads=posix \ 
--enable-languages=c \ 
--disable-shared \ 
--disable-nls \ 
--with-headers=[base]/tools/gcc-3.2.2/sparc-leon-linux/include \   :: the uclibc headers (the $DEVEL_PREFIX settings of uclibc build) 
--with-libs=``[base]/tools/gcc-3.2.2/sparc-leon-linux/lib`` \      :: the uclibc lib.a s 
$make all 
$make install 
$ 



uclibc .config template 
+------------- cut -------------+ 
# 
# Automatically generated make config: don't edit 
# 

# 
# Target Architecture Features and Options 
# 
HAVE_ELF=y 
UCLIBC_HAS_MMU=y 
UCLIBC_HAS_FLOATS=y 
# HAS_FPU is not set 
UCLIBC_HAS_SOFT_FLOAT=y 
# DO_C99_MATH is not set 
WARNINGS="-Wall" 
KERNEL_SOURCE="[linux]"							:: replace [linux] 
C_SYMBOL_PREFIX="" 
HAVE_DOT_CONFIG=y 

# 
# General Library Settings 
# 
# DOPIC is not set 
UCLIBC_CTOR_DTOR=y 
UCLIBC_HAS_THREADS=y 
UCLIBC_HAS_LFS=y 
# MALLOC is not set 
MALLOC_930716=y 
UCLIBC_DYNAMIC_ATEXIT=y 
HAS_SHADOW=y 
UCLIBC_HAS_REGEX=y 
UNIX98PTY_ONLY=y ASSUME_DEVPTS=y 

# 
# Networking Support 
# 
# UCLIBC_HAS_IPV6 is not set 
# UCLIBC_HAS_RPC is not set 

# 
# String and Stdio Support 
# 
# UCLIBC_HAS_WCHAR is not set 
# USE_OLD_VFPRINTF is not set 

# 
# Library Installation Options 
# 
DEVEL_PREFIX="[base]/tools/gcc-3.2.2/sparc-leon-linux"	    ::replace [base]  
SYSTEM_DEVEL_PREFIX="$(DEVEL_PREFIX)" 
DEVEL_TOOL_PREFIX="$(DEVEL_PREFIX)/usr" 

#
# uClibc hacking options 
# 
# DODEBUG is not set 
# DOASSERTS is not set