Dear all,
Please find below the Call For Presentation to the LSM meeting for the
Embedded Systems and Open Hardware session.
Sincerely Yours;
Patrice.
===
The Libre Software Meeting (LSM) is an annual event on free
2009/1/28 Jamie Lokier ja...@shareable.org:
loody wrote:
File is not an object file
so, it seems I have to make a object relocation file to let this tool,
arm-linux-elf2flt, work.
but how?
Don't use the tool directly, use it with GCC as you found:
2. I use -Wl,-elf2flt=-s1024 with
Hi Loody,
loody wrote:
I try 2 another cross-toolchains today.
1. buildroot,
2. arm-uclinux, download from Codesourcery.
The transformation of elf to FLAT of them is quite different.
I get help from buildroot maintainer, so I can build buildroot with
elf2flt successfully.
a.
When I use
You are really making things difficult for yourself to start out.
My suggestion, get the uClinux-dist, use the arm-linux compiler
linked from uclinux.org. I specifically use the GDB/ARMulator
target. Build it as is and run it on the Skyeye emulator.
Use that as a starting point.
Regards
Quoth loody:
At beginning, I use the combination you suggest, but uclinux makes me
cry when I find that the only executable file format that can run on
uclinux is FLAT.
This is because the other file formats rely on the VMM being able to make
code/data appear at specific addresses.
Without a
my cpu is arm940T.
Try adding -mcpu=arm940t to the GCC command, and remove
-march=armv4t and -mtune=arm9tdmi from it (your example has them).
Hi:
Thanks for your help :)
the situation is still the same when I follow the instructions you suggest.
I will try another combinations as well.
BTW,
Hello!
For the record when was the Nintendo GBA officially supported by this
project? The steps to create a something also tell me that I am quite
literally breaking new ground here.
Does this mean that no one else has created something for the GBA? For
example it suggested that I select a
Hi Gregg,
Gregg Levine wrote:
For the record when was the Nintendo GBA officially supported by this
project?
I dunno about for the record, but I first coded up some basic
support in early 2003. That work has been in uClinux-dist code
packages from then.
I only ever worked on the GBA
Hi Loody,
loody wrote:
my cpu is arm940T.
Try adding -mcpu=arm940t to the GCC command, and remove
-march=armv4t and -mtune=arm9tdmi from it (your example has them).
Hi:
Thanks for your help :)
the situation is still the same when I follow the instructions you suggest.
I will try another
loody wrote:
Try adding -mcpu=arm940t to the GCC command, and remove
-march=armv4t and -mtune=arm9tdmi from it (your example has them).
the situation is still the same when I follow the instructions you suggest.
(I use Codesourcery gcc but assign buildroot lib.)
Ah... The faulting
Why is only supporting FLAT a problem for you?
(It is not entirely true to say uClinux only supports FLAT,
some uClinux architectures support fdelf-pic).
Sorry for using the word, ONLY. Tears will make the screen blur, you
know. :-(
I don't know how to make a flat with the arm-linux
loody wrote:
When I use -Wl,-elf2flt,-s32768 to compile my hellow.c.
It should say -wL,-elf2flt=-s32768. Note the = (equal sign).
b.
When I use -Wl,-elf2flt to compile my hellow.c.
it will say:
arm-linux-uclibcgnueabi/bin/ld.real: error: no memory region specified
for loadable section
loody wrote:
e1a0e00fmov lr, pc
e12fff13bx r3
What is the specialty of the instruction, mov lr,pc, which let
arm cpu fail?
Both of those instructions can put the CPU into Thumb mode. If it
doesn't support Thumb, you get an instruction fault.
mov lr,pc is
Hi Loody,
loody wrote:
Why is only supporting FLAT a problem for you?
(It is not entirely true to say uClinux only supports FLAT,
some uClinux architectures support fdelf-pic).
Sorry for using the word, ONLY. Tears will make the screen blur, you
know. :-(
I don't know how to make a
2009/1/29 Greg Ungerer g...@snapgear.com:
Hi Loody,
loody wrote:
Why is only supporting FLAT a problem for you?
(It is not entirely true to say uClinux only supports FLAT,
some uClinux architectures support fdelf-pic).
Sorry for using the word, ONLY. Tears will make the screen blur, you
Quoth Greg Ungerer:
Use readelf. FLAT format files are generated by a trivial
conversion from ELF. (That is they are compiled as ELF, and
a final conversion step is done to convert them to FLAT).
The ELF format file is the myapp.gdb file created next to the myapp (FLAT) file.
2009/1/29 Jamie Lokier ja...@shareable.org:
loody wrote:
e1a0e00fmov lr, pc
e12fff13bx r3
What is the specialty of the instruction, mov lr,pc, which let
arm cpu fail?
Both of those instructions can put the CPU into Thumb mode. If it
doesn't support
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