Re: [uClinux-dev] why no-mmu cannot support binfmt_aout.c

Greg Ungerer Fri, 30 Jan 2009 04:03:12 -0800

loody wrote:

What target did you use as your base for this?
(What I really want to know is what is set in the
config.arch file).


Regards
Greg

Dear Greg:
I use GDB/armulator.
attach the config and config.arch for your reference.
Thanks for your help,


Here is what I did:

1.  downloaded uClinux-dist-20080808.tar.gz
2.  downloaded arm-linux-tools-20061213.tar.gz
3.  mkdir user/hello
4.  vi user/hello/hello.c and put in it:

   int main()
   {
        printf("hello world\n");
   }

5.  vi user/hello/Makefile and put in it:

    all: hello

    romfs:
        $(ROMFSINST) /bin/hello

    clean:
        -rm -f hello *.elf *.gdb *.o

6.  vi user/Kconfig, adding in the "Miscellaneous Applications section:

    config USER_HELLO_HELLO
        bool "hello"

7.  vi user/Makefile, adding in a line:

    dir_$(CONFIG_USER_HELLO_HELLO)              += hello

8.  configured uClinux-dist to build "GDB/ARMulator" selecting to
    use a linux-2.6.x kernel, and selected the new "hello" program
    for inclusion as well

9.  make
10. cd images
11. cp <my-local-skyeye.conf-file> .
12. run "skyeye -e linux" and see:

Your elf file is little endian.
arch: arm
cpu info: armv3, arm7tdmi, 41007700, fff8ff00, 0
mach info: name at91, mach_init addr 0x4189a0
uart_mod:0, desc_in:, desc_out:, converter:
SKYEYE: use arm7100 mmu ops
Loaded ROM   boot.rom
exec file "linux"'s format is elf32-little.
load section .text.head: addr = 0x01008000  size = 0x00000190.
load section .init: addr = 0x010081a0  size = 0x0000ee60.
load section .text: addr = 0x01017000  size = 0x000ce870.
not load section .rodata: addr = 0x010e6000  size = 0x00000000 .
not load section .pci_fixup: addr = 0x010e6000  size = 0x00000000 .
not load section .rio_route: addr = 0x010e6000  size = 0x00000000 .
not load section __ksymtab: addr = 0x010e6000  size = 0x00000000 .
not load section __ksymtab_gpl: addr = 0x010e6000  size = 0x00000000 .
not load section __ksymtab_unused: addr = 0x010e6000  size = 0x00000000 .

not load section __ksymtab_unused_gpl: addr = 0x010e6000 size =0x00000000 .not load section __ksymtab_gpl_future: addr = 0x010e6000 size =0x00000000 .

not load section __kcrctab: addr = 0x010e6000  size = 0x00000000 .
not load section __kcrctab_gpl: addr = 0x010e6000  size = 0x00000000 .
not load section __kcrctab_unused: addr = 0x010e6000  size = 0x00000000 .

not load section __kcrctab_unused_gpl: addr = 0x010e6000 size =0x00000000 .not load section __kcrctab_gpl_future: addr = 0x010e6000 size =0x00000000 .

load section __param: addr = 0x010e6000  size = 0x00001000.
load section .data: addr = 0x010e8000  size = 0x00009f98.
not load section .bss: addr = 0x010f1fa0  size = 0x00008f20 .
not load section .comment: addr = 0x00000000  size = 0x000013b0 .
call ARMul_InitSymTable,kernel filename is linux.
start addr is set to 0x01008000 by exec file.

Linux version 2.6.25-uc0 (g...@goober) (gcc version 3.4.4) #2 Fri Jan 3021:38:07 EST 2009CPU: Atmel-AT91M40xxx [14000040] revision 0 (ARMvundefined/unknown),cr=00000000

Machine: Atmel AT91 EB01
Built 1 zonelists in Zone order, mobility grouping off.  Total pages: 4064
Kernel command line:
PID hash table entries: 64 (order: 6, 256 bytes)
console [ttyS0] enabled
Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)
Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
Memory: 16MB = 16MB total
Memory: 15268KB available (832K code, 75K data, 60K init)
Mount-cache hash table entries: 512
io scheduler noop registered (default)
Atmel USART driver version 0.99
ttyS0 at 0xfffd0000 (irq = 2) is a builtin Atmel APB USART
ttyS1 at 0xfffcc000 (irq = 3) is a builtin Atmel APB USART
brd: module loaded
uclinux[mtd]: RAM probe address=0x1400000 size=0x103000
Creating 1 MTD partitions on "ROM":
0x00000000-0x00103000 : "ROMfs"
uclinux[mtd]: set ROMfs to be root filesystem
VFS: Mounted root (romfs filesystem) readonly.
Freeing init memory: 60K
Shell invoked to run file: /etc/rc
Command: hostname GDB-ARMulator
Command: /bin/expand /etc/ramfs.img /dev/ram0
Command: mount -t proc proc /proc
Command: mount -t ext2 /dev/ram0 /var
Command: mkdir /var/tmp
Command: mkdir /var/log
Command: mkdir /var/run
Command: mkdir /var/lock
Command: mkdir /var/empty
Command: cat /etc/motd
Welcome to
          ____ _  _
         /  __| ||_|
    _   _| |  | | _ ____  _   _  _  _
   | | | | |  | || |  _ \| | | |\ \/ /
   | |_| | |__| || | | | | |_| |/    \
   |  ___\____|_||_|_| |_|\____|\_/\_/
   | |
   |_|

GDB/ARMulator support by <dav...@snapgear.com>
For further information check:
http://www.uclinux.org/

Execution Finished, Exiting

Sash command shell (version 1.1.1)
/>




13. from the command line I run "hello":

/> hello
hello world
/>


All seems to work...

Regards
Greg



------------------------------------------------------------------------
Greg Ungerer  --  Principal Engineer        EMAIL:     g...@snapgear.com
SnapGear, a McAfee Company                  PHONE:       +61 7 3435 2888
825 Stanley St,                             FAX:         +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia         WEB: http://www.SnapGear.com
_______________________________________________
uClinux-dev mailing list
uClinux-dev@uclinux.org
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
This message was resent by uclinux-dev@uclinux.org
To unsubscribe see:
http://mailman.uclinux.org/mailman/options/uclinux-dev

Re: [uClinux-dev] why no-mmu cannot support binfmt_aout.c

Reply via email to