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36 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    I have tested the new buildroot.

    It works now with buildroot-snapshot, uClibc-0.9.28, busybox-snapshot.

    http://buildroot.uclibc.org/downloads/snap...napshot.tar.bz2 (http://buildroot.uclibc.org/downloads/snapshots/buildroot-snapshot.tar.bz2)

    http://www.uclibc.org/downloads/uclibc-0.9.28.tar.bz2 (http://www.uclibc.org/downloads/uclibc-0.9.28.tar.bz2)

    http://busybox.net/downloads/snapshots/bus...napshot.tar.bz2 (http://busybox.net/downloads/snapshots/busybox-snapshot.tar.bz2)

    1. unpack buildroot , tar jxf buildroot-snapshot.tar.bz2

    2. download uClibc-0.9.28 into buildroot/dl dir.

    # unpack uClibc-0.9.28,

    tar jxf uClibc-0.9.28.tar.bz2

    # remove the line of "default nios2-elf-" from uClibc-0.9.28/extran/Configs/Config.nios2

    # repack

    tar jcf uClibc-0.9.28.tar.bz2 uClibc-0.9.28

    3. update buildroot/package/busybox/busybox.config 

    CONFIG_STATIC=y
EXTRA_CFLAGS_OPTIONS="-D__uClinux__ -Dfork=vfork"#  CONFIG_START_STOP_DAEMON is not set
CONFIG_FEATURE_2_6_MODULES=y

    4. update buildroot/toolchain/uClibc/uClibc.config 

      DL_FINI_CRT_COMPAT=y
  COMPAT_ATEXIT=y

    5. get the elf2flt patch of marc's into buildroot/dl

    http://bugs.uclibc.org/file_download.php?f...id=225&type=bug (http://bugs.uclibc.org/file_download.php?file_id=225&type=bug)

    update the first part of elf2flt.diff 

    Index: buildroot/toolchain/Config.in
===================================================================
--- buildroot/toolchain/Config.in    2006-01-07 16:15:08.000000000 +0800
+++ buildroot/toolchain/Config.in    2006-01-09 09:08:15.000000000 +0800
@@ -10,6 +10,7 @@
 source "toolchain/ccache/Config.in"
 source "toolchain/gdb/Config.in"
 source "toolchain/sstrip/Config.in"
+source "toolchain/elf2flt/Config.in"
 
 
 comment "Common Toolchain Options"

    Apply the patch

    cd buildroot

    patch -p1 <dl/elf2flt.diff

    6. in buildroot dir

    make menuconfig

    select nios2, in toolchain option,

    [ ] Use a daily snapshot of uClibc?

    [*] Enable elf2flt support?

    [ ] Include target utils in cross toolchain

    7. make, it will make binutils,gcc,uclibc, and fail in busybox

    8. update the busybox&#39;s

    buildroot/build_nios2/busybox/Rules.mak, add elf2flt 

    #LDFLAGS+=-nostdlib# LIBRARIES:=$(LIBCDIR)/lib/libc.a -lgcc
LDFLAGS+=-Wl,-elf2flt="-s 16000" -Wl,-v -Wl,-d
LIBRARIES:=-lc -lgcc

    buildroot/build_nios2/busybox/Makefile, comment out the stripcmd 

    busybox: .depend $(libraries-y)
    $(CC) $(EXTRA_CFLAGS) $(LDFLAGS) -o $@ -Wl,--start-group $(libraries-y) $(LIBRARIES) -Wl,--end-group#     $(STRIPCMD) $@

    9. cd buildroot/build_nios2/busybox, make menuconfig

    in "shell->", choose default shell "msh", unselect ash, select "standalone shell".

    10. back to buildroot/

    make, and it will build busybox

    11. copy the buildroot/build_nios2/root to another place, cp -a

    remove usr/lib,usr/include

    it is your new root fs now.

    add a sym-link for initramfs , ln -s /sbin/init init

    This is the cross compiler for nios2 with default to uClibc, and the root fs with busybox.

    Thanks a lots, to marc and vapier.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    --- Quote Start ---

    originally posted by leonqin@Jan 9 2006, 04:01 PM

    failed build gcc,because can&#39;t connected to mirros.rcn.net to get gcc-3.4.2.tar.bz2.

    where the server(mirros.rcn.net) located?

    within china ,many site outside china can not connected.

    <div align='right'><{post_snapback}> (index.php?act=findpost&pid=12055)

    --- quote end ---

    --- Quote End ---

    You can search gnu mirrors in china. Most universities have ftp mirror for unix/gnu.

    www.gnu.org

    China: ftp://linuxforum.net/ftp.gcc.gnu.org/ (ftp://linuxforum.net/ftp.gcc.gnu.org/), thanks to David Deng (david99deng at yahoo dot com)

    China

    * ftp.cs.cuhk.edu.hk/pub/gnu/gnu/

    * sunsite.ust.hk/pub/gnu/
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    It is cleared. And it is running now.

    The dev nodes in buildroot/build-nios2/root/dev/ are incorrect when running as a linux user account.

    remove and create them in your rootfs/dev with mknod.

    add a line "::sysinit:/bin/sh" to rootfs/etc/inittab for console shell.

    add dir rootfs/sys for sysfs.

    it is better to run buildroot using linux root account.

    You should place all the downloaded tarballs (gcc,binutils.. etc) in the buildroot/dl dir.

    more patch buildroot/dl/uClibc-0.9.28.tar.bz2, (which I found before but forget to add this time)

    upack,update,repack. 

    --- uClibc-0.9.28/libc/misc/internals/__uClibc_main.c    2006/01/09 09:08:11    1.1
+++ uClibc-0.9.28/libc/misc/internals/__uClibc_main.c    2006/01/10 01:17:40
@@ -256,7 +256,7 @@
 }
 
# ifdef _DL_FINI_CRT_COMPAT
-extern int weak_function main(int argc, char **argv, char **envp);
+extern int main(int argc, char **argv, char **envp);
 void __attribute__ ((__noreturn__))
 __uClibc_start_main(int argc, char **argv, char **envp,
       void (*app_fini)(void), void (*app_init)(void))

    buildroot/package/busybox.config, should update more settings 

    CONFIG_STATIC=y#  CONFIG_START_STOP_DAEMON is not set
CONFIG_FEATURE_2_6_MODULES=y

    buildroot/build_nios2/busybox/Rules.mak, should have libc and libgcc 

    # For other libraries, you are on your own.  But these may (or may not) help...# LDFLAGS+=-nostdlib# LIBRARIES:=$(LIBCDIR)/lib/libc.a -lgcc
LDFLAGS+=-Wl,-elf2flt="-s 16000" -Wl,-v -Wl,-d
LIBRARIES:=-lc -lgcc# CROSS_CFLAGS+=-nostdinc -I$(LIBCDIR)/include -I$(GCCINCDIR) -funsigned-char# GCCINCDIR:=$(shell gcc -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Alex,

    Sorry I am not good at chinese typing, and I will use english.

    1. the buildroot/dl used to be created by the buildroot make.

    but we will mkdir of it by hand before make.

    and put all other download into it in advance.

    2. the uClibc-0.9.28.tar.bz2 will be unpack to uClibc-0.9.28 without the need to specify dir name.

    the busybox-snapshot.tar.bz2 will be unpack to busybox without the need to specify dir name.

    you should place *bz2 in buildroot/dir, unpack , update, and repack in the dl dir.

    I have just met with the people from Altera. I have asked them to setup a ftp mirror for these tools for nios2 in China, to solve the download problem. I have asked them to translate more docs into chinese, too. They have a chinse nios2 forum and chinse altera support. But I suggest them to merge, to support all native languages all over the world. If you have any suggestions, let me know, and I will forward to their high-level managements.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    hi:

    question A:

    When I execed patch command after I updated the elf2lt.diff ,but got following

    information.

    # patch -p1 <dl/elf2flt.diff

    patching file toolchain/Config.in

    patch:**** malformed patch at line 13:Index: buildroot/toolchain/elf2flt/Config.in

    Why?

    question B:

    In buildroot dir I execed make command, but fail.

    # make

    make -C package/config ncurses conf mconf

    make[1]: Entering directory &#39;/usr/local/nios2_toolschain/buildroot/package/config&#39;

    gcc: installation problem, cannot exec &#39;cc1&#39;:&#27809;&#26377;&#37027;&#20010;&#25991;&#20214;&#25110;&#30446;&#24405;

    >> Unable to findthe Ncurses libraries.

    >>

    >> You must have Ncurses installed in order

    >> to use &#39;make menuconfig&#39;

    >>

    >> Maybe you want to try &#39;make config, which

    >> doesn&#39;t depend on the Ncurese libraries.

    make[1]: *** [ncurses] Error 1

    make[1]: Leaving directory &#39;/usr/local/nios2_toolschain/buildroot/package/config,

    make: *** [package/config/mcong] Error 2

    In package, I find ncurses dir.But the dir is empty.If i want to use ncurses, frist I

    must download ncurses source code in the dir?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    You may write your question in chinese here.

    A. the patch is incorrect between first and second file.

    Just apply the orginal patch without the modification.

    There will be only one fail in the first part. then edit the file buildroot/toolchain/Config.in with an editor on Linux. add the line for elf2flt at about line 13.

    source "toolchain/elf2flt/Config.in"

    B. You need to install Ncurese libraries to your Linux for buildroot.

    If you use slackware, it is in "L" set.

    File: ncurses-5.3-i386-1.tgz for slackware 9.0

    installpkg ncurses-5.3-i386-1.tgz

    If you use redhat/fedora core

    File: ncurses-5.4-17.i386.rpm for fc4

    rpm -ivh ncurses-5.4-17.i386.rpm

    or yum ncurses
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    20 years ago

    Vapier sync up kernel header 2.6.11 to buildroot now, (use svn). Thank you, vapier.

    You can choose kernel head 2.6.11 in buildroot menuconfig.

    2.6.11 is the kernel version used in Microtronix release 1.4.