[uClinux-dev] SLOB and binfmt_flat/do_mremap
Hi, With the SLOB allocator enabled, kobjsize() doesn't seem to match ksize(). This triggers a bug with binfmt_flat, where the do_mremap call is used to take up slack space in the allocated text/data segments. binfmt_flat calls ksize to get the allocated region size, but do_mremap calls kobjsize. I've got a system where these are reporting two different values, and it's causing mremap to fail: do_mremap(0x13f4, 0x0001b4be, 0x0002, 0x0002,0x13f4) new_len is 0x0002 kobjsize is 0x1000 ksize is 0x0002 Unable to allocate RAM for process text/data, errno 12 ksize() is reporting 0x2 (and that's what binfmt_flat passed in), but kobjsize() is reporting 0x1000. This trigggers the test in do_mremap and the application fails with -ENOMEM. With SLAB it's fine. Inspired by this patch from last year http://mailman.uclinux.org/pipermail/uclinux-dev/2006-July/039232.html I've got the following that seems to work OK: Index: nommu.c === --- nommu.c (revision 2640) +++ nommu.c (working copy) @@ -112,13 +112,7 @@ if (!objp || !((page = virt_to_page(objp return 0; - if (PageSlab(page)) - return ksize(objp); - - BUG_ON(page-index 0); - BUG_ON(page-index = MAX_ORDER); - - return (PAGE_SIZE page-index); + return ksize(objp); } Any thoughts? It seems that this is a known issue with SLOB. Thanks, John ___ 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
[uClinux-dev] simpleinit and empty inittab file
Hi all, I'm working on a blackfin board. I'm using user/init/simpleinit as init application. By doing some tests I found that the kernel crash while trying to use an empty inittab file. The message that I receive is Kernel panic - not syncing: Attempted to kill init! I've taken a look to the code and I've found the root cause of it: At the end of read_inittab() function [lines 708-709 of CVS head] there are if (numcmd == 0) _exit(1); Now, I could not understand why if the inittab file is empty (or contains only commented lines) the init application should exit with an error code. Is that a well know behaviour or just a bug? Maybe is better remove this lines ... Is there some side effects that I should expecting? Best Regards --Michele ___ 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
[uClinux-dev] kernel module and static
Hi,
I have a bug that I can be resume as:
/***/
#include linux/module.h// Needed by all modules
#include linux/kernel.h// Needed for KERN_INFO
static long global_right_encoder;
static long global_left_encoder;
static long VitL;
int init_module(void)
{
VitL = 0;
global_left_encoder = 0;
global_right_encoder = 0;
printk(KERN_INFO Bug:\n);
VitL = global_left_encoder*global_right_encoder;
printk(KERN_INFO Never Reach\n);
return 0;
}
void cleanup_module(void)
{
}
MODULE_AUTHOR(Stephane Germain);
MODULE_LICENSE(GPL);
/**/
result:
insmod xxx.o:
SIGSEGV
dmesg:
Bug:
*** ILLEGAL INSTRUCTION *** FORMAT=0
Current process id is 47
BAD KERNEL TRAP:
PC: [000a8bec]
SR: 2014 SP: 007dbee8 a2: 10c16b34
d0: d1: 0991d2: d3: ffea
d4: 0060d5: 0008a0: 0003dc8ca1: 0003dca8
Process insmod (pid: 47, stackpage=007db000)
Frame format=0
Stack from 007dbf1c:
000a8c14 007d3000 007dbfc4 10c17856 007c5348 00102428 007c5348
00e8
0002 0001 007da000 00192e00 007c51c0 00190004 00140560
0015fae0
007d3000 007d4000 0060 0003dd58 000a8bc0 00e8
0019fdc8 10c127d2 00192e00 007c5348 00102428
007c5348
Call Trace:
[10c17856] [10c127d2]
Code: 4c39 0800 000a 8c3c 23c0 000a 8c44 4879 000a 8c1d
/*/
if the variables are local, all work!
Somebody know something that I don't about that?
Thanks
Stephane Germain
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Re: [uClinux-dev] kernel module and static
Hi Stéphane,
looks like you are compiling your code with compiler flags that generate
instructions that the processor does not support. That's why you see the
illegal instruction trap.
The reason that it all works if the variables are local is probably that
you also use an optimization flag (e.g. -O3) that causes the compiler to
optimize the whole multiplication away in main because it has no effect
on the function's result and is local to the function.
You should try to compile the code with gcc -S to generate assembler
output. Then you can identify the instruction that causes the problem.
Cheers,
Wolfgang
Stéphane wrote:
Hi,
I have a bug that I can be resume as:
/***/
#include linux/module.h// Needed by all modules
#include linux/kernel.h// Needed for KERN_INFO
static long global_right_encoder;
static long global_left_encoder;
static long VitL;
int init_module(void)
{
VitL = 0;
global_left_encoder = 0;
global_right_encoder = 0;
printk(KERN_INFO Bug:\n);
VitL = global_left_encoder*global_right_encoder;
printk(KERN_INFO Never Reach\n);
return 0;
}
void cleanup_module(void)
{
}
MODULE_AUTHOR(Stephane Germain);
MODULE_LICENSE(GPL);
/**/
result:
insmod xxx.o:
SIGSEGV
dmesg:
Bug:
*** ILLEGAL INSTRUCTION *** FORMAT=0
Current process id is 47
BAD KERNEL TRAP:
PC: [000a8bec]
SR: 2014 SP: 007dbee8 a2: 10c16b34
d0: d1: 0991d2: d3: ffea
d4: 0060d5: 0008a0: 0003dc8ca1: 0003dca8
Process insmod (pid: 47, stackpage=007db000)
Frame format=0
Stack from 007dbf1c:
000a8c14 007d3000 007dbfc4 10c17856 007c5348 00102428 007c5348
00e8
0002 0001 007da000 00192e00 007c51c0 00190004 00140560
0015fae0
007d3000 007d4000 0060 0003dd58 000a8bc0 00e8
0019fdc8 10c127d2 00192e00 007c5348 00102428
007c5348
Call Trace:
[10c17856] [10c127d2]
Code: 4c39 0800 000a 8c3c 23c0 000a 8c44 4879 000a 8c1d
/*/
if the variables are local, all work!
Somebody know something that I don't about that?
Thanks
Stephane Germain
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Re: [uClinux-dev] kernel module and static
Hi Stéphane,
can you also generate an objdump of the module and post it?
Stéphane wrote:
Hmm,
In Makefile:
//
INCLUDE := -isystem ../uClinux-dist-20060803/linux-2.4.x/include
CFLAGS := -DMODULE -D__KERNEL__ ${WARN} ${INCLUDE}
CC := /opt/uClinux-m68k-elf/bin/m68k-elf-gcc
${TARGET}.o: ${TARGET}.c
//
and with -S :
/*/
.file ucAsserv.c
gcc2_compiled.:
.section.modinfo,a,@progbits
.type__module_kernel_version,@object
.size__module_kernel_version,33
__module_kernel_version:
.string kernel_version=2.4.31-uc0-ANI-10
.section.rodata
.LC0:
.string 6Bug:\n
.LC1:
.string 6Never Reach\n
.text
.align 2
.globl init_module
.typeinit_module,@function
init_module:
link.w %a6,#0
clr.l VitL
clr.l global_left_encoder
clr.l global_right_encoder
pea .LC0
jsr printk
addq.l #4,%sp
move.l global_left_encoder,%d0
muls.l global_right_encoder,%d0
move.l %d0,VitL
pea .LC1
jsr printk
addq.l #4,%sp
clr.l %d0
jbra .L95
.align 2
.L95:
unlk %a6
rts
.Lfe1:
.sizeinit_module,.Lfe1-init_module
.align 2
.globl cleanup_module
.typecleanup_module,@function
cleanup_module:
link.w %a6,#0
.L96:
unlk %a6
rts
.Lfe2:
.sizecleanup_module,.Lfe2-cleanup_module
.globl __module_author
.section.modinfo
.type__module_author,@object
.size__module_author,24
__module_author:
.string author=Stephane Germain
.type__module_license,@object
.size__module_license,12
__module_license:
.string license=GPL
.local global_right_encoder
.comm global_right_encoder,4,2
.local global_left_encoder
.comm global_left_encoder,4,2
.local VitL
.comm VitL,4,2
.ident GCC: (GNU) 2.95.3 20010315 (release)(ColdFire patches -
20010318 from
http://fiddes.net/coldfire/)(uClinux XIP and shared lib patches from
http://www.snapgear.com/)
/***/
I use the default toolchain
/opt/uClinux-m68k-elf/bin/m68k-elf-gcc -v :
Reading specs from /opt/uClinux-m68k-elf/lib/gcc-lib/m68k-elf/2.95.3/specs
gcc version 2.95.3 20010315 (release)(ColdFire patches - 20010318 from
http://fiddes.net/coldfire/)(uClinux XIP
and shared lib patches from http://www.snapgear.com/)
thanks
Wolfgang Reissnegger a écrit :
Hi Stéphane,
looks like you are compiling your code with compiler flags that
generate instructions that the processor does not support. That's why
you see the illegal instruction trap.
The reason that it all works if the variables are local is probably
that you also use an optimization flag (e.g. -O3) that causes the
compiler to optimize the whole multiplication away in main because it
has no effect on the function's result and is local to the function.
You should try to compile the code with gcc -S to generate assembler
output. Then you can identify the instruction that causes the problem.
Cheers,
Wolfgang
Stéphane wrote:
Hi,
I have a bug that I can be resume as:
/***/
#include linux/module.h// Needed by all modules
#include linux/kernel.h// Needed for KERN_INFO
static long global_right_encoder;
static long global_left_encoder;
static long VitL;
int init_module(void)
{
VitL = 0;
global_left_encoder = 0;
global_right_encoder = 0;
printk(KERN_INFO Bug:\n);
VitL = global_left_encoder*global_right_encoder;
printk(KERN_INFO Never Reach\n);
return 0;
}
void cleanup_module(void)
{
}
MODULE_AUTHOR(Stephane Germain);
MODULE_LICENSE(GPL);
/**/
result:
insmod xxx.o:
SIGSEGV
dmesg:
Bug:
*** ILLEGAL INSTRUCTION *** FORMAT=0
Current process id is 47
BAD KERNEL TRAP:
PC: [000a8bec]
SR: 2014 SP: 007dbee8 a2: 10c16b34
d0: d1: 0991d2: d3: ffea
d4: 0060d5: 0008a0: 0003dc8ca1: 0003dca8
Process insmod (pid: 47, stackpage=007db000)
Frame format=0
Stack from 007dbf1c:
000a8c14 007d3000 007dbfc4 10c17856 007c5348 00102428 007c5348
00e8
0002 0001 007da000 00192e00 007c51c0 00190004 00140560
0015fae0
007d3000 007d4000 0060 0003dd58 000a8bc0 00e8
0019fdc8 10c127d2 00192e00 007c5348 00102428
007c5348
Call Trace:
[10c17856] [10c127d2]
Code: 4c39 0800 000a 8c3c 23c0 000a 8c44 4879 000a 8c1d
/*/
if the variables are local, all work!
Somebody know something that I don't
Re: [uClinux-dev] kernel module and static
Hi
I don't exactly know but:
objdump -sx xx.o :
ucAsserv.o: file format elf32-big
ucAsserv.o
architecture: UNKNOWN!, flags 0x0011:
HAS_RELOC, HAS_SYMS
start address 0x
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 0058 0034 2**2
CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
1 .data 008c 2**2
CONTENTS, ALLOC, LOAD, DATA
2 .bss 000c 008c 2**2
ALLOC
3 .modinfo 0045 008c 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
4 .rodata 0019 00d1 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
5 .comment 00a6 00ea 2**0
CONTENTS, READONLY
SYMBOL TABLE:
ldf *ABS* ucAsserv.c
ld .text .text
ld .data .data
ld .bss .bss
l .text gcc2_compiled.
ld .modinfo .modinfo
l O .modinfo0021 __module_kernel_version
ld .rodata .rodata
0008 l O .bss0004 VitL
0004 l O .bss0004 global_left_encoder
l O .bss0004 global_right_encoder
0039 l O .modinfo000c __module_license
ld .comment .comment
g F .text0050 init_module
*UND* printk
0050 g F .text0008 cleanup_module
0021 g O .modinfo0018 __module_author
RELOCATION RECORDS FOR [.text]:
OFFSET TYPE VALUE
0006 UNKNOWN .bss+0x0008
000c UNKNOWN .bss+0x0004
0012 UNKNOWN .bss
0018 UNKNOWN .rodata
001e UNKNOWN printk
0026 UNKNOWN .bss+0x0004
002e UNKNOWN .bss
0034 UNKNOWN .bss+0x0008
003a UNKNOWN .rodata+0x0009
0040 UNKNOWN printk
Contents of section .text:
4e56 42b9 42b9 NV..B.B.
0010 42b9 4879 4eb9 B.HyN...
0020 588f 2039 4c39 0800 ..X. 9L9
0030 23c0 4879 4eb9 ..#.HyN.
0040 588f4280 6002 4e5e4e75 X.B.`...N^Nu
0050 4e56 4e5e4e75NV..N^Nu
Contents of section .modinfo:
6b65726e 656c5f76 65727369 6f6e3d32 kernel_version=2
0010 2e342e33 312d7563 302d414e 492d3130 .4.31-uc0-ANI-10
0020 00617574 686f723d 53746570 68616e65 .author=Stephane
0030 20476572 6d61696e 006c6963 656e7365 Germain.license
0040 3d47504c 00 =GPL.
Contents of section .rodata:
3c363e42 75673a0a 003c363e 4e657665 6Bug:..6Neve
0010 72205265 6163680a 00 r Reach..
Contents of section .comment:
00474343 3a202847 4e552920 322e3935 .GCC: (GNU) 2.95
0010 2e332032 30303130 33313520 2872656c .3 20010315 (rel
0020 65617365 2928436f 6c644669 72652070 ease)(ColdFire p
0030 61746368 6573202d 20323030 31303331 atches - 2001031
0040 38206672 6f6d2068 7474703a 2f2f6669 8 from http://fi
0050 64646573 2e6e6574 2f636f6c 64666972 ddes.net/coldfir
0060 652f2928 75436c69 6e757820 58495020 e/)(uClinux XIP
0070 616e6420 73686172 6564206c 69622070 and shared lib p
0080 61746368 65732066 726f6d20 68747470 atches from http
0090 3a2f2f77 2e73 6e617067 6561722e ://www.snapgear.
00a0 636f6d2f 2900com/).
Wolfgang Reissnegger a écrit :
Hi Stéphane,
can you also generate an objdump of the module and post it?
Stéphane wrote:
Hmm,
In Makefile:
//
INCLUDE := -isystem ../uClinux-dist-20060803/linux-2.4.x/include
CFLAGS := -DMODULE -D__KERNEL__ ${WARN} ${INCLUDE}
CC := /opt/uClinux-m68k-elf/bin/m68k-elf-gcc
${TARGET}.o: ${TARGET}.c
//
and with -S :
/*/
.file ucAsserv.c
gcc2_compiled.:
.section.modinfo,a,@progbits
.type__module_kernel_version,@object
.size__module_kernel_version,33
__module_kernel_version:
.string kernel_version=2.4.31-uc0-ANI-10
.section.rodata
.LC0:
.string 6Bug:\n
.LC1:
.string 6Never Reach\n
.text
.align 2
.globl init_module
.typeinit_module,@function
init_module:
link.w %a6,#0
clr.l VitL
clr.l global_left_encoder
clr.l global_right_encoder
pea .LC0
jsr printk
addq.l #4,%sp
move.l global_left_encoder,%d0
muls.l global_right_encoder,%d0
move.l %d0,VitL
pea .LC1
jsr printk
Re: [uClinux-dev] kernel module and static
Hi,
try to use objdump -D xx.o
You should see the disassembled section of module_init.
Stéphane wrote:
Hi
I don't exactly know but:
objdump -sx xx.o :
ucAsserv.o: file format elf32-big
ucAsserv.o
architecture: UNKNOWN!, flags 0x0011:
HAS_RELOC, HAS_SYMS
start address 0x
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 0058 0034 2**2
CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
1 .data 008c 2**2
CONTENTS, ALLOC, LOAD, DATA
2 .bss 000c 008c 2**2
ALLOC
3 .modinfo 0045 008c 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
4 .rodata 0019 00d1 2**0
CONTENTS, ALLOC, LOAD, READONLY, DATA
5 .comment 00a6 00ea 2**0
CONTENTS, READONLY
SYMBOL TABLE:
ldf *ABS* ucAsserv.c
ld .text .text
ld .data .data
ld .bss .bss
l .text gcc2_compiled.
ld .modinfo .modinfo
l O .modinfo0021 __module_kernel_version
ld .rodata .rodata
0008 l O .bss0004 VitL
0004 l O .bss0004 global_left_encoder
l O .bss0004 global_right_encoder
0039 l O .modinfo000c __module_license
ld .comment .comment
g F .text0050 init_module
*UND* printk
0050 g F .text0008 cleanup_module
0021 g O .modinfo0018 __module_author
RELOCATION RECORDS FOR [.text]:
OFFSET TYPE VALUE
0006 UNKNOWN .bss+0x0008
000c UNKNOWN .bss+0x0004
0012 UNKNOWN .bss
0018 UNKNOWN .rodata
001e UNKNOWN printk
0026 UNKNOWN .bss+0x0004
002e UNKNOWN .bss
0034 UNKNOWN .bss+0x0008
003a UNKNOWN .rodata+0x0009
0040 UNKNOWN printk
Contents of section .text:
4e56 42b9 42b9 NV..B.B.
0010 42b9 4879 4eb9 B.HyN...
0020 588f 2039 4c39 0800 ..X. 9L9
0030 23c0 4879 4eb9 ..#.HyN.
0040 588f4280 6002 4e5e4e75 X.B.`...N^Nu
0050 4e56 4e5e4e75NV..N^Nu
Contents of section .modinfo:
6b65726e 656c5f76 65727369 6f6e3d32 kernel_version=2
0010 2e342e33 312d7563 302d414e 492d3130 .4.31-uc0-ANI-10
0020 00617574 686f723d 53746570 68616e65 .author=Stephane
0030 20476572 6d61696e 006c6963 656e7365 Germain.license
0040 3d47504c 00 =GPL.
Contents of section .rodata:
3c363e42 75673a0a 003c363e 4e657665 6Bug:..6Neve
0010 72205265 6163680a 00 r Reach..
Contents of section .comment:
00474343 3a202847 4e552920 322e3935 .GCC: (GNU) 2.95
0010 2e332032 30303130 33313520 2872656c .3 20010315 (rel
0020 65617365 2928436f 6c644669 72652070 ease)(ColdFire p
0030 61746368 6573202d 20323030 31303331 atches - 2001031
0040 38206672 6f6d2068 7474703a 2f2f6669 8 from http://fi
0050 64646573 2e6e6574 2f636f6c 64666972 ddes.net/coldfir
0060 652f2928 75436c69 6e757820 58495020 e/)(uClinux XIP
0070 616e6420 73686172 6564206c 69622070 and shared lib p
0080 61746368 65732066 726f6d20 68747470 atches from http
0090 3a2f2f77 2e73 6e617067 6561722e ://www.snapgear.
00a0 636f6d2f 2900com/).
Wolfgang Reissnegger a écrit :
Hi Stéphane,
can you also generate an objdump of the module and post it?
Stéphane wrote:
Hmm,
In Makefile:
//
INCLUDE := -isystem ../uClinux-dist-20060803/linux-2.4.x/include
CFLAGS := -DMODULE -D__KERNEL__ ${WARN} ${INCLUDE}
CC := /opt/uClinux-m68k-elf/bin/m68k-elf-gcc
${TARGET}.o: ${TARGET}.c
//
and with -S :
/*/
.file ucAsserv.c
gcc2_compiled.:
.section.modinfo,a,@progbits
.type__module_kernel_version,@object
.size__module_kernel_version,33
__module_kernel_version:
.string kernel_version=2.4.31-uc0-ANI-10
.section.rodata
.LC0:
.string 6Bug:\n
.LC1:
.string 6Never Reach\n
.text
.align 2
.globl init_module
.typeinit_module,@function
init_module:
link.w %a6,#0
clr.l VitL
clr.l global_left_encoder
clr.l global_right_encoder
pea .LC0
jsr printk
addq.l #4,%sp
move.l global_left_encoder,%d0
muls.l
Re: [uClinux-dev] Using math.h in uClinux applications
Doug, I have not used a Makefile at all, I just compile by typing gcc file.c -o file -lm Regards, Sven --- Doug Kehn wrote: Did you also add -lm to the Makefile? For example, $(EXEC): $(OBJS) $(CC) $(LDFLAGS) -o $@ $(OBJS) -lm $(LDLIBS) Regards, ...doug ___ 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] add ROMfs in RAM at the end of kernel (_ebss)
Hi Lance,
I'm doing similar things. I patched the kernel with your code, but i got
an kernel panic. The boot log is:
/-/
Kernel command line: root=/dev/ram0
...
io scheduler noop registered (default)
atmel_usart.0: ttyS0 at MMIO 0xf800f000 (irq = 11) is a ATMEL_SERIAL
RAMDISK driver initialized: 1 RAM disks of 1024K size 1024 blocksize
uclinux[mtd]: RAM probe address=0xf02f0 size=0x1e000
Creating 1 MTD partitions on RAM:
0x-0x0001e000 : ROMfs
mtd: Giving out device 0 to ROMfs
uclinux[mtd]: set ROMfs to be root filesystem
Generic platform RAM MTD, (c) 2004 Simtec Electronics
VFS: Can't find a romfs filesystem on dev ram0.
No filesystem could mount root, tried: romfs
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(1,0)
/-/
I made further test on it. And it seems it get an empty super inode from
romfs.
Did I miss something in kernel configuration or kernel command line?
Thansk a lot.
Shuanglin
Lance Spaulding wrote:
Mickael Sergent wrote:
Hello,
I'm trying to port uclinux 2.6.x on dev. board based on ARM946-E-S. (I
use uClinux-dist 20070130)
I would like to have kernel and ROMfs entirely in RAM but it seems to
be impossible on ARM architecture.
On uclinux 2.4 version a switch (CONFIG_RAM_ATTACHED_ROMFS) can be
used to do this.
Does an equivalent exist in 2.6 version ?
I tried to use CONFIG_MTD_UCLINUX_EBSS (after having defined _ebss
symbol in the end of kernel) but it doesn't solve problem (because RAM
where is stored ROMfs is used by uclinux), so a patch is needed to
reserve ROMfs memory
Do you know another solution to put ROMfs at the end of kernel ?
Thanks a lot !
Best regards,
Mickael.
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Hi Mickael,
We use a ram based rom filesystem on our ARM products (including ones
using an arm946). I've attached a small patch of the changes I made to
get this to work. Note that we use little-endian exclusively so if you
are using big-endian you will need to change the code slightly.
Thanks,
Lance
diff -Naur uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-common.S
uClinux-dist/linux-2.6.x/arch/arm/kernel/head-common.S
--- uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-common.S 2006-06-28
01:22:16.0 -0600
+++ uClinux-dist/linux-2.6.x/arch/arm/kernel/head-common.S 2007-04-18
17:57:48.0 -0600
@@ -10,7 +10,6 @@
* published by the Free Software Foundation.
*
*/
-
.type __switch_data, %object
__switch_data:
.long __mmap_switched
@@ -41,7 +40,6 @@
ldrne fp, [r4], #4
strne fp, [r5], #4
bne 1b
-
mov fp, #0 @ Clear BSS (and zero fp)
1: cmp r6, r7
strcc fp, [r6],#4
@@ -215,3 +213,41 @@
bl __lookup_machine_type
mov r0, r5
ldmfd sp!, {r4 - r6, pc}
+
+#ifdef CONFIG_MTD_UCLINUX
+ .type __relocate_romfs, %function
+__relocate_romfs:
+ adr r4, romfsinfo
+ ldmia r4!, {r6, r7}
+ bic r6, r6, #0xc000
+ bic r7, r7, #0xc000
+
+ /* move the ram based rom filesystem to its correct final location... */
+ /* the value is stored big-endian
*/
+ mov fp, #0
+ add r4,r6,#8
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #24
+ add r4,r6,#9
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #16
+ add r4,r6,#10
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #8
+ add r4,r6,#11
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #0
+ add r4, r6, fp
+ add fp, r7, fp
+ sub r6, r6, #4
+1: ldr r5, [r4]
+ str r5, [fp]
+ sub r4, r4, #4
+ sub fp, fp, #4
+ cmp r4, r6
+ bne 1b
+ mov pc, lr
+romfsinfo:
+ .long __bss_start @ r6
+ .long _end@ r7
+#endif
diff -Naur uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-nommu.S
uClinux-dist/linux-2.6.x/arch/arm/kernel/head-nommu.S
--- uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-nommu.S 2007-01-29
18:55:08.0 -0700
+++ uClinux-dist/linux-2.6.x/arch/arm/kernel/head-nommu.S 2007-04-19
08:25:58.0 -0600
@@ -16,7 +16,6 @@
#include asm/assembler.h
#include asm/mach-types.h
-#include asm/procinfo.h
#include asm/ptrace.h
#include asm/asm-offsets.h
#include asm/thread_info.h
@@ -41,6 +40,9 @@
ldr r1, =machine_arch_type @ find the machine type
msr cpsr_c, #PSR_F_BIT | PSR_I_BIT | SVC_MODE @ ensure svc mode
Re: [uClinux-dev] kernel module and static
OK, so it seems like the: 2a:4c39 0800 mulsl 0 init_module,%d0 instruction is causing your illegal instruction trap. I would suspect that the CPU you are running does not support multiplication instructions? You can look into the gcc man page to find out if there are any options you can pass to the compiler to generate instructions for your particular model. Wolfgang Stéphane wrote: Hi Ok I do that: /opt/m68k-uclinux-tools-20060615/bin/m68k-uclinux-objdump -D xx.o ucAsserv.o: file format elf32-m68k Disassembly of section .text: init_module: 0:4e56 linkw %fp,#0 4:42b9 clrl 0 init_module a:42b9 clrl 0 init_module 10:42b9 clrl 0 init_module 16:4879 pea 0 init_module 1c:4eb9 jsr 0 init_module 22:588f addql #4,%sp 24:2039 movel 0 init_module,%d0 2a:4c39 0800 mulsl 0 init_module,%d0 30: 32:23c0 movel %d0,0 init_module 38:4879 pea 0 init_module 3e:4eb9 jsr 0 init_module 44:588f addql #4,%sp 46:4280 clrl %d0 48:6000 0002 braw 4c init_module+0x4c 4c:4e5e unlk %fp 4e:4e75 rts 0050 cleanup_module: 50:4e56 linkw %fp,#0 54:4e5e unlk %fp 56:4e75 rts Disassembly of section .bss: global_right_encoder: 0: orib #0,%d0 0004 global_left_encoder: 4: orib #0,%d0 0008 VitL: 8: orib #0,%d0 Disassembly of section .modinfo: __module_kernel_version: 0:6b65 bmis 67 cleanup_module+0x17 2:726e moveq #110,%d1 4:656c bcss 72 cleanup_module+0x22 6:5f76 6572 7369 subqw #7,%fp@(73696f6e)@(3d32) c:6f6e 3d32 10:2e34 2e33 movel %a4@(0033,%d2:l:8),%d7 14:312d 7563 movew %a5@(30051),[EMAIL PROTECTED] 18:302d 414e movew %a5@(16718),%d0 1c:492d 3130 chkl %a5@(12592),%d4 ... 0021 __module_author: 21:6175 bsrs 98 cleanup_module+0x48 23:7468 moveq #104,%d2 25:6f72 bles 99 cleanup_module+0x49 27:3d53 7465 movew %a3@,%fp@(29797) 2b:7068 moveq #104,%d0 2d:616e bsrs 9d cleanup_module+0x4d 2f:6520 bcss 51 cleanup_module+0x1 31:4765 043545 33:726d moveq #109,%d1 35:6169 bsrs a0 cleanup_module+0x50 37:6e00 6c69 bgtw 6ca2 cleanup_module+0x6c52 0039 __module_license: 39:6c69 bges a4 cleanup_module+0x54 3b:6365 blss a2 cleanup_module+0x52 3d:6e73 bgts b2 cleanup_module+0x62 3f:653d bcss 7e cleanup_module+0x2e 41:4750 043520 43:Address 0x0045 is out of bounds. Disassembly of section .rodata: .rodata: 0:3c36 3e42 movew %fp@(0042,%d3:l:8),%d6 4:7567 mvsw [EMAIL PROTECTED],%d2 6:3a0a movew %a2,%d5 8:003c 363e orib #62,%ccr c:4e65 movel %a5,%usp e:7665 moveq #101,%d3 10:7220 moveq #32,%d1 12:5265 addqw #1,[EMAIL PROTECTED] 14:6163 bsrs 79 cleanup_module+0x29 16:680a bvcs 22 __module_author+0x1 ... Disassembly of section .comment: .comment: 0:0047 4343 oriw #17219,%d7 4:3a20 movew [EMAIL PROTECTED],%d5 6:2847 moveal %d7,%a4 8:4e55 2920 linkw %a5,#10528 c:322e 3935 movew %fp@(14645),%d1 10:2e33 2032 movel %a3@(0032,%d2:w),%d7 14:3030 3130 3331 movew %a0@(33313520,%d3:w),%d0 1a:3520 1c:2872 656c 6561 moveal %a2@(6561)@(),%a4 22:7365 mvsw [EMAIL PROTECTED],%d1 24:2928 436f movel %a0@(17263),[EMAIL PROTECTED] 28:6c64 bges 8e .comment+0x8e 2a:4669 7265 notw %a1@(29285) 2e:2070 6174 6368 moveal %a0@(63686573)@(),%a0 34:6573 36:202d 2032 movel %a5@(8242),%d0 3a:3030 3130 3331 movew %a0@(33313820,%d3:w),%d0 40:3820 42:6672 bnes b6 cleanup_module+0x66 44:6f6d bles b3 cleanup_module+0x63 46:2068 7474 moveal %a0@(29812),%a0 4a:703a moveq #58,%d0 4c:2f2f 6669 movel %sp@(26217),[EMAIL PROTECTED] 50:6464 bccs b6 cleanup_module+0x66 52:6573 bcss
Re: [uClinux-dev] add ROMfs in RAM at the end of kernel (_ebss)
Hi Shaunglin,
Try removing the 'root=/dev/ram0' from your command line. You can add
'rootfstype=romfs' if you want but it should work w/o it.
Thanks,
Lance
Shuanglin Wang wrote:
Hi Lance,
I'm doing similar things. I patched the kernel with your code, but i
got an kernel panic. The boot log is:
/-/
Kernel command line: root=/dev/ram0
...
io scheduler noop registered (default)
atmel_usart.0: ttyS0 at MMIO 0xf800f000 (irq = 11) is a ATMEL_SERIAL
RAMDISK driver initialized: 1 RAM disks of 1024K size 1024 blocksize
uclinux[mtd]: RAM probe address=0xf02f0 size=0x1e000
Creating 1 MTD partitions on RAM:
0x-0x0001e000 : ROMfs
mtd: Giving out device 0 to ROMfs
uclinux[mtd]: set ROMfs to be root filesystem
Generic platform RAM MTD, (c) 2004 Simtec Electronics
VFS: Can't find a romfs filesystem on dev ram0.
No filesystem could mount root, tried: romfs
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(1,0)
/-/
I made further test on it. And it seems it get an empty super inode
from romfs.
Did I miss something in kernel configuration or kernel command line?
Thansk a lot.
Shuanglin
Lance Spaulding wrote:
Mickael Sergent wrote:
Hello,
I'm trying to port uclinux 2.6.x on dev. board based on ARM946-E-S. (I
use uClinux-dist 20070130)
I would like to have kernel and ROMfs entirely in RAM but it seems to
be impossible on ARM architecture.
On uclinux 2.4 version a switch (CONFIG_RAM_ATTACHED_ROMFS) can be
used to do this.
Does an equivalent exist in 2.6 version ?
I tried to use CONFIG_MTD_UCLINUX_EBSS (after having defined _ebss
symbol in the end of kernel) but it doesn't solve problem (because RAM
where is stored ROMfs is used by uclinux), so a patch is needed to
reserve ROMfs memory
Do you know another solution to put ROMfs at the end of kernel ?
Thanks a lot !
Best regards,
Mickael.
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Hi Mickael,
We use a ram based rom filesystem on our ARM products (including ones
using an arm946). I've attached a small patch of the changes I made to
get this to work. Note that we use little-endian exclusively so if you
are using big-endian you will need to change the code slightly.
Thanks,
Lance
diff -Naur
uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-common.S
uClinux-dist/linux-2.6.x/arch/arm/kernel/head-common.S
--- uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-common.S
2006-06-28 01:22:16.0 -0600
+++ uClinux-dist/linux-2.6.x/arch/arm/kernel/head-common.S
2007-04-18 17:57:48.0 -0600
@@ -10,7 +10,6 @@
* published by the Free Software Foundation.
*
*/
-
.type__switch_data, %object
__switch_data:
.long__mmap_switched
@@ -41,7 +40,6 @@
ldrnefp, [r4], #4
strnefp, [r5], #4
bne1b
-
movfp, #0@ Clear BSS (and zero fp)
1:cmpr6, r7
strccfp, [r6],#4
@@ -215,3 +213,41 @@
bl__lookup_machine_type
movr0, r5
ldmfdsp!, {r4 - r6, pc}
+
+#ifdef CONFIG_MTD_UCLINUX
+.type__relocate_romfs, %function
+__relocate_romfs:
+ adr r4, romfsinfo
+ldmiar4!, {r6, r7}
+ bic r6, r6, #0xc000
+ bic r7, r7, #0xc000
+ + /* move the ram based rom filesystem to its correct final
location... */
+ /* the value is stored
big-endian */
+ mov fp, #0
+ add r4,r6,#8
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #24
+ add r4,r6,#9
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #16
+ add r4,r6,#10
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #8
+ add r4,r6,#11
+ ldrb r4,[r4]
+ orr fp, fp, r4, LSL #0
+ add r4, r6, fp
+ add fp, r7, fp
+ sub r6, r6, #4
+1: ldr r5, [r4]
+ str r5, [fp]
+ sub r4, r4, #4
+ sub fp, fp, #4
+ cmp r4, r6
+ bne 1b
+ mov pc, lr
+romfsinfo:
+.long__bss_start@ r6
+.long_end@ r7
+#endif
diff -Naur uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-nommu.S
uClinux-dist/linux-2.6.x/arch/arm/kernel/head-nommu.S
--- uClinux-dist.orig/linux-2.6.x/arch/arm/kernel/head-nommu.S
2007-01-29 18:55:08.0 -0700
+++ uClinux-dist/linux-2.6.x/arch/arm/kernel/head-nommu.S
2007-04-19 08:25:58.0 -0600
@@ -16,7 +16,6 @@
#include asm/assembler.h
#include asm/mach-types.h
-#include asm/procinfo.h
#include asm/ptrace.h
#include
[uClinux-dev] how to use ftp client to upload a file from target to server?
I am having difficulty figuring out how to use ftp client to upload a file from a uClinux target to server. In fact, I am having difficulty figuring out how to log into a server and give it a username and password. Unlike Linux, uClinux does not request a username and password. # ftp ftp.sbctools.com ftp: ftp.sbctools.com: ftp user sbctools ftp ..connects, but, does not ask for username and password. But, now the trick is to give the server a username and password. # ftp ftp.sbctools.com ftp: ftp.sbctools.com: ftp user sbctools Not connected ftp This is the kind of Linux session I am trying to repicate from a uClinux target: [EMAIL PROTECTED] bin]$ ftp ftp.sbctools.com Connected to ftp.sbctools.com (67.55.39.12). 220 ftp.sbctools.com FTP Server ready Name (ftp.sbctools.com:intec): sbctools 331 Password required for sbctools. Password: 230 User sbctools logged in. Remote system type is UNIX. Using binary mode to transfer files. ftp cd /var/www/html/downloads/V3 250 CWD command successful ftp ls 227 Entering Passive Mode (67,55,39,12,109,83). 150 Opening ASCII mode data connection for file list -rw-r--r-- 1 sbctools sbctools 9979668 Mar 12 21:15 M5208EVBE_dbug.zip : -rw-r--r-- 1 sbctools sbctools 667828 Apr 30 15:55 wildfire_iflash.s19 226 Transfer complete. ftp send partitionSD local: partitionSD remote: partitionSD 227 Entering Passive Mode (67,55,39,12,109,23). 150 Opening BINARY mode data connection for partitionSD 226 Transfer complete. 129 bytes sent in 0.0345 secs (3.6 Kbytes/sec) ftp ls 227 Entering Passive Mode (67,55,39,12,109,83). 150 Opening ASCII mode data connection for file list -rw-r--r-- 1 sbctools sbctools 9979668 Mar 12 21:15 M5208EVBE_dbug.zip -rw-r--r-- 1 sbctools sbctools 129 May 3 22:49 partitionSD : -rw-r--r-- 1 sbctools sbctools 667828 Apr 30 15:55 wildfire_iflash.s19 226 Transfer complete. ftp close 221 Goodbye. ftp quit [EMAIL PROTECTED] bin]$ Has anyone done this? Care to share? Thanks, Bob Furber ___ 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] kernel module and static
That MULS.L instruction is definitely wrong. The source effective address mode specified, is not supported in the longword variant of MULS. Is it just me, or does that whole disassembly look strange? Mike Wolfgang Reissnegger wrote: OK, so it seems like the: 2a:4c39 0800 mulsl 0 init_module,%d0 instruction is causing your illegal instruction trap. I would suspect that the CPU you are running does not support multiplication instructions? You can look into the gcc man page to find out if there are any options you can pass to the compiler to generate instructions for your particular model. Wolfgang Stéphane wrote: Hi Ok I do that: /opt/m68k-uclinux-tools-20060615/bin/m68k-uclinux-objdump -D xx.o ucAsserv.o: file format elf32-m68k Disassembly of section .text: init_module: 0:4e56 linkw %fp,#0 4:42b9 clrl 0 init_module a:42b9 clrl 0 init_module 10:42b9 clrl 0 init_module 16:4879 pea 0 init_module 1c:4eb9 jsr 0 init_module 22:588f addql #4,%sp 24:2039 movel 0 init_module,%d0 2a:4c39 0800 mulsl 0 init_module,%d0 30: 32:23c0 movel %d0,0 init_module 38:4879 pea 0 init_module 3e:4eb9 jsr 0 init_module 44:588f addql #4,%sp 46:4280 clrl %d0 48:6000 0002 braw 4c init_module+0x4c 4c:4e5e unlk %fp 4e:4e75 rts 0050 cleanup_module: 50:4e56 linkw %fp,#0 54:4e5e unlk %fp 56:4e75 rts Disassembly of section .bss: global_right_encoder: 0: orib #0,%d0 0004 global_left_encoder: 4: orib #0,%d0 0008 VitL: 8: orib #0,%d0 Disassembly of section .modinfo: __module_kernel_version: 0:6b65 bmis 67 cleanup_module+0x17 2:726e moveq #110,%d1 4:656c bcss 72 cleanup_module+0x22 6:5f76 6572 7369 subqw #7,%fp@(73696f6e)@(3d32) c:6f6e 3d32 10:2e34 2e33 movel %a4@(0033,%d2:l:8),%d7 14:312d 7563 movew %a5@(30051),[EMAIL PROTECTED] 18:302d 414e movew %a5@(16718),%d0 1c:492d 3130 chkl %a5@(12592),%d4 ... 0021 __module_author: 21:6175 bsrs 98 cleanup_module+0x48 23:7468 moveq #104,%d2 25:6f72 bles 99 cleanup_module+0x49 27:3d53 7465 movew %a3@,%fp@(29797) 2b:7068 moveq #104,%d0 2d:616e bsrs 9d cleanup_module+0x4d 2f:6520 bcss 51 cleanup_module+0x1 31:4765 043545 33:726d moveq #109,%d1 35:6169 bsrs a0 cleanup_module+0x50 37:6e00 6c69 bgtw 6ca2 cleanup_module+0x6c52 0039 __module_license: 39:6c69 bges a4 cleanup_module+0x54 3b:6365 blss a2 cleanup_module+0x52 3d:6e73 bgts b2 cleanup_module+0x62 3f:653d bcss 7e cleanup_module+0x2e 41:4750 043520 43:Address 0x0045 is out of bounds. Disassembly of section .rodata: .rodata: 0:3c36 3e42 movew %fp@(0042,%d3:l:8),%d6 4:7567 mvsw [EMAIL PROTECTED],%d2 6:3a0a movew %a2,%d5 8:003c 363e orib #62,%ccr c:4e65 movel %a5,%usp e:7665 moveq #101,%d3 10:7220 moveq #32,%d1 12:5265 addqw #1,[EMAIL PROTECTED] 14:6163 bsrs 79 cleanup_module+0x29 16:680a bvcs 22 __module_author+0x1 ... Disassembly of section .comment: .comment: 0:0047 4343 oriw #17219,%d7 4:3a20 movew [EMAIL PROTECTED],%d5 6:2847 moveal %d7,%a4 8:4e55 2920 linkw %a5,#10528 c:322e 3935 movew %fp@(14645),%d1 10:2e33 2032 movel %a3@(0032,%d2:w),%d7 14:3030 3130 3331 movew %a0@(33313520,%d3:w),%d0 1a:3520 1c:2872 656c 6561 moveal %a2@(6561)@(),%a4 22:7365 mvsw [EMAIL PROTECTED],%d1 24:2928 436f movel %a0@(17263),[EMAIL PROTECTED] 28:6c64 bges 8e .comment+0x8e 2a:4669 7265 notw %a1@(29285) 2e:2070 6174 6368 moveal %a0@(63686573)@(),%a0 34:6573 36:202d 2032 movel %a5@(8242),%d0 3a:3030 3130 3331 movew %a0@(33313820,%d3:w),%d0 40:3820 42:6672 bnes b6 cleanup_module+0x66 44:6f6d bles b3 cleanup_module+0x63 46:
Re: [uClinux-dev] kernel module and static
Hi Stephane,
Stéphane wrote:
In Makefile:
//
INCLUDE := -isystem ../uClinux-dist-20060803/linux-2.4.x/include
CFLAGS := -DMODULE -D__KERNEL__ ${WARN} ${INCLUDE}
CC := /opt/uClinux-m68k-elf/bin/m68k-elf-gcc
${TARGET}.o: ${TARGET}.c
What CPU are you running on?
What is the actual compile line?
From the ensuing discussion I would guess that you are not
compiling with the appropriate CPU class passed to gcc.
If you are using a ColdFire you should at least have an
-m5200 (or equivalent) gcc option. If a base 68k (like
68328 or similar) then -m68000. Otherwise you won't get
instructions generated appropriate to your CPU.
Regards
Greg
//
and with -S :
/*/
.file ucAsserv.c
gcc2_compiled.:
.section.modinfo,a,@progbits
.type__module_kernel_version,@object
.size__module_kernel_version,33
__module_kernel_version:
.string kernel_version=2.4.31-uc0-ANI-10
.section.rodata
.LC0:
.string 6Bug:\n
.LC1:
.string 6Never Reach\n
.text
.align 2
.globl init_module
.typeinit_module,@function
init_module:
link.w %a6,#0
clr.l VitL
clr.l global_left_encoder
clr.l global_right_encoder
pea .LC0
jsr printk
addq.l #4,%sp
move.l global_left_encoder,%d0
muls.l global_right_encoder,%d0
move.l %d0,VitL
pea .LC1
jsr printk
addq.l #4,%sp
clr.l %d0
jbra .L95
.align 2
.L95:
unlk %a6
rts
.Lfe1:
.sizeinit_module,.Lfe1-init_module
.align 2
.globl cleanup_module
.typecleanup_module,@function
cleanup_module:
link.w %a6,#0
.L96:
unlk %a6
rts
.Lfe2:
.sizecleanup_module,.Lfe2-cleanup_module
.globl __module_author
.section.modinfo
.type__module_author,@object
.size__module_author,24
__module_author:
.string author=Stephane Germain
.type__module_license,@object
.size__module_license,12
__module_license:
.string license=GPL
.local global_right_encoder
.comm global_right_encoder,4,2
.local global_left_encoder
.comm global_left_encoder,4,2
.local VitL
.comm VitL,4,2
.ident GCC: (GNU) 2.95.3 20010315 (release)(ColdFire patches -
20010318 from
http://fiddes.net/coldfire/)(uClinux XIP and shared lib patches from
http://www.snapgear.com/)
/***/
I use the default toolchain
/opt/uClinux-m68k-elf/bin/m68k-elf-gcc -v :
Reading specs from /opt/uClinux-m68k-elf/lib/gcc-lib/m68k-elf/2.95.3/specs
gcc version 2.95.3 20010315 (release)(ColdFire patches - 20010318 from
http://fiddes.net/coldfire/)(uClinux XIP
and shared lib patches from http://www.snapgear.com/)
thanks
Wolfgang Reissnegger a écrit :
Hi Stéphane,
looks like you are compiling your code with compiler flags that
generate instructions that the processor does not support. That's why
you see the illegal instruction trap.
The reason that it all works if the variables are local is probably
that you also use an optimization flag (e.g. -O3) that causes the
compiler to optimize the whole multiplication away in main because it
has no effect on the function's result and is local to the function.
You should try to compile the code with gcc -S to generate assembler
output. Then you can identify the instruction that causes the problem.
Cheers,
Wolfgang
Stéphane wrote:
Hi,
I have a bug that I can be resume as:
/***/
#include linux/module.h// Needed by all modules
#include linux/kernel.h// Needed for KERN_INFO
static long global_right_encoder;
static long global_left_encoder;
static long VitL;
int init_module(void)
{
VitL = 0;
global_left_encoder = 0;
global_right_encoder = 0;
printk(KERN_INFO Bug:\n);
VitL = global_left_encoder*global_right_encoder;
printk(KERN_INFO Never Reach\n);
return 0;
}
void cleanup_module(void)
{
}
MODULE_AUTHOR(Stephane Germain);
MODULE_LICENSE(GPL);
/**/
result:
insmod xxx.o:
SIGSEGV
dmesg:
Bug:
*** ILLEGAL INSTRUCTION *** FORMAT=0
Current process id is 47
BAD KERNEL TRAP:
PC: [000a8bec]
SR: 2014 SP: 007dbee8 a2: 10c16b34
d0: d1: 0991d2: d3: ffea
d4: 0060d5: 0008a0: 0003dc8ca1: 0003dca8
Process insmod (pid: 47, stackpage=007db000)
Frame format=0
Stack from 007dbf1c:
000a8c14 007d3000 007dbfc4 10c17856 007c5348 00102428 007c5348
00e8
0002 0001 007da000 00192e00 007c51c0 00190004 00140560
0015fae0
007d3000 007d4000 0060 0003dd58 000a8bc0 00e8
Re: [uClinux-dev] how to use ftp client to upload a file from target to server?
That version of ftp is just not very good at error reporting. It will be failing to resolve ftp.sbctools.com Try 'ping ftp.scbtools.com' and you will see. Try with the IP address instead: # ftp 67.55.39.12 Cheers, Steve On 04/05/2007, at 9:11 AM, Bob Furber wrote: I am having difficulty figuring out how to use ftp client to upload a file from a uClinux target to server. In fact, I am having difficulty figuring out how to log into a server and give it a username and password. Unlike Linux, uClinux does not request a username and password. # ftp ftp.sbctools.com ftp: ftp.sbctools.com: ftp user sbctools ftp ..connects, but, does not ask for username and password. But, now the trick is to give the server a username and password. # ftp ftp.sbctools.com ftp: ftp.sbctools.com: ftp user sbctools Not connected ftp This is the kind of Linux session I am trying to repicate from a uClinux target: [EMAIL PROTECTED] bin]$ ftp ftp.sbctools.com Connected to ftp.sbctools.com (67.55.39.12). 220 ftp.sbctools.com FTP Server ready Name (ftp.sbctools.com:intec): sbctools 331 Password required for sbctools. Password: 230 User sbctools logged in. Remote system type is UNIX. Using binary mode to transfer files. ftp cd /var/www/html/downloads/V3 250 CWD command successful ftp ls 227 Entering Passive Mode (67,55,39,12,109,83). 150 Opening ASCII mode data connection for file list -rw-r--r-- 1 sbctools sbctools 9979668 Mar 12 21:15 M5208EVBE_dbug.zip : -rw-r--r-- 1 sbctools sbctools 667828 Apr 30 15:55 wildfire_iflash.s19 226 Transfer complete. ftp send partitionSD local: partitionSD remote: partitionSD 227 Entering Passive Mode (67,55,39,12,109,23). 150 Opening BINARY mode data connection for partitionSD 226 Transfer complete. 129 bytes sent in 0.0345 secs (3.6 Kbytes/sec) ftp ls 227 Entering Passive Mode (67,55,39,12,109,83). 150 Opening ASCII mode data connection for file list -rw-r--r-- 1 sbctools sbctools 9979668 Mar 12 21:15 M5208EVBE_dbug.zip -rw-r--r-- 1 sbctools sbctools 129 May 3 22:49 partitionSD : -rw-r--r-- 1 sbctools sbctools 667828 Apr 30 15:55 wildfire_iflash.s19 226 Transfer complete. ftp close 221 Goodbye. ftp quit [EMAIL PROTECTED] bin]$ Has anyone done this? Care to share? Thanks, Bob Furber ___ 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 -- WorkWare Systems Pty Ltd W: www.workware.net.au P: 0434 921 300 F: 07 3102 9221 E: [EMAIL PROTECTED] smime.p7s Description: S/MIME cryptographic signature ___ 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] how to use ftp client to upload a file from targetto server?
Thanks Steve Try 'ping ftp.scbtools.com' and you will see. uClinux[-2.6.6] responds that sbctools.com is alive! How did you get it to resolve the IP address? Try with the IP address instead: # ftp 67.55.39.12 Ftp went catatonic. Not even a ftp prompt. It required a ^C to exit to the uClinux '#' prompt. I have the feeling that I am missing something. Bob F. Cheers, Steve On 04/05/2007, at 9:11 AM, Bob Furber wrote: I am having difficulty figuring out how to use ftp client to upload a file from a uClinux target to server. In fact, I am having difficulty figuring out how to log into a server and give it a username and password. Unlike Linux, uClinux does not request a username and password. # ftp ftp.sbctools.com ftp: ftp.sbctools.com: ftp user sbctools ftp ..connects, but, does not ask for username and password. But, now the trick is to give the server a username and password. # ftp ftp.sbctools.com ftp: ftp.sbctools.com: ftp user sbctools Not connected ftp This is the kind of Linux session I am trying to repicate from a uClinux target: [EMAIL PROTECTED] bin]$ ftp ftp.sbctools.com Connected to ftp.sbctools.com (67.55.39.12). 220 ftp.sbctools.com FTP Server ready Name (ftp.sbctools.com:intec): sbctools 331 Password required for sbctools. Password: 230 User sbctools logged in. Remote system type is UNIX. Using binary mode to transfer files. ftp cd /var/www/html/downloads/V3 250 CWD command successful ftp ls 227 Entering Passive Mode (67,55,39,12,109,83). 150 Opening ASCII mode data connection for file list -rw-r--r-- 1 sbctools sbctools 9979668 Mar 12 21:15 M5208EVBE_dbug.zip : -rw-r--r-- 1 sbctools sbctools 667828 Apr 30 15:55 wildfire_iflash.s19 226 Transfer complete. ftp send partitionSD local: partitionSD remote: partitionSD 227 Entering Passive Mode (67,55,39,12,109,23). 150 Opening BINARY mode data connection for partitionSD 226 Transfer complete. 129 bytes sent in 0.0345 secs (3.6 Kbytes/sec) ftp ls 227 Entering Passive Mode (67,55,39,12,109,83). 150 Opening ASCII mode data connection for file list -rw-r--r-- 1 sbctools sbctools 9979668 Mar 12 21:15 M5208EVBE_dbug.zip -rw-r--r-- 1 sbctools sbctools 129 May 3 22:49 partitionSD : -rw-r--r-- 1 sbctools sbctools 667828 Apr 30 15:55 wildfire_iflash.s19 226 Transfer complete. ftp close 221 Goodbye. ftp quit [EMAIL PROTECTED] bin]$ Has anyone done this? Care to share? Thanks, Bob Furber ___ 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 -- WorkWare Systems Pty Ltd W: www.workware.net.au P: 0434 921 300 F: 07 3102 9221 E: [EMAIL PROTECTED] ___ 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
