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Re: Not able to cross-compile curl for ARM uClinux

From: Bernard Evensrud <bevensrud_at_gmail.com>
Date: Sat, 15 Dec 2012 22:24:55 +0100

2012/12/15 Bernard Evensrud <bevensrud_at_gmail.com>:
> 2012/12/14 Daniel Stenberg <daniel_at_haxx.se>:
>> On Fri, 14 Dec 2012, Bernard Evensrud wrote:
>>
>>> Also tried to compile some other small programs, both C and C++ (adding
>>> the -lstdc++ parameter of course). Compiles and runs. These programs is
>>> compiled with make, and do not have any configure scripts.
>>
>>
>> So save a C source file as main.c that does printf("hello world\n"); in its
>> main() function. Use only plain C. A fine compiler (in this context) should
>> then be able to do this:
>>
>> $ arm-elf-gcc main.c
>>
>> ... and there should be no warnings at all, and there should be an "a.out"
>> file created that is the executable you can execute on target.
>>
>> Compilers named "arm-elf-gcc" usually imply that they are more bare-bones
>> and won't work as simple as that (and the config.log test failure seems to
>> prove that). Does your gcc?
>>
>> --
>>
>> / daniel.haxx.se
>>
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>
> Thanks to your help maybe I have found something. Using an example
> 'Hello World' application in plain c, when compiling without other
> options than "-Wl,--elf2flt" it does make a working executable. But if
> I do not specify a filename it will be called "-r" and not "a.out" ?!?
> Normally when I have compiled my software I have always been using the
> -o option to set my own output filename.
> Now the error makes sense, as it is checking default compiler file
> name before it stops executing.
>
> This confirms that there really is problems with my toolchain?
>
> Bernard E.

I have manually changed the linker script provided in the toolchain, I
set default output filename as a.out. This string was empty!
Lazy people at MOXA supplying this toolchain.

I am happy I managed to cross this step. I do have some new errors.
Hoping to sort them out tomorrow :)

Bernard E.
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Received on 2012-12-15