[LLVMdev] A question to LLVM for ARMv6

[Evgeny Astigeevich]

Hi Steven,

It looks like your installed linker does not support cross-compilation for
arm. You need to install gcc with arm support. You can find a link to it on
Linaro site: http://www.linaro.org/downloads/  (Bare-metal toolchain for
Cortex-R/M and Cortex-A) .

Kind regards,
Evgeny

-----Original Message-----
From: qiuw at ichaier.com [mailto:qiuw at ichaier.com] 
Sent: 11 March 2015 09:56
To: Evgeny Astigeevich
Subject: Re: RE: [LLVMdev] A question to LLVM for ARMv6

Hi, Evgeny

Thanks for your reply.

But When I executed the command (clang --target=armv6m-arm-none-eabi
-mcpu=cortex-m0 t.c), the error was displayed as follows

D:\LLVM_TEST\m0>"H:\Program Files\LLVM\bin\clang"
--target=armv6m-arm-none-eabi
-mcpu=cortex-m0 t.c
e:/python26/egg-info/mingw/usr/bin/../lib/gcc/i686-w64-mingw32/4.5.2/../../.
./..
/i686-w64-mingw32/bin/ld.exe: C:\DOCUME~1\qiuw\LOCALS~1\Temp\t-3d7139.o:
Relocat ions in generic ELF (EM: 40)
C:\DOCUME~1\qiuw\LOCALS~1\Temp\t-3d7139.o: could not read symbols: File in
wrong  format
collect2: ld returned 1 exit status
clang.exe: error: linker (via gcc) command failed with exit code 1 (use -v
to se e invocation)

I want compile 't.c' to 't.o' that can be linked by gcc or lld. Thanks a
lot.

Kind regards,

Steven.

--------------
>Hi Steven,
>
>On the following page you can find how to build cross-compiling 
>clang/llvm and what packages you will need for the ARM cross-compilation:
>
>http://llvm.org/docs/HowToCrossCompileLLVM.html
>
>On the following page you can read about cross-compilation using clang:
>
>http://clang.llvm.org/docs/CrossCompilation.html
>
>
>For example, compiling for Cortex-M0 (armv6-m):
>
>clang --target=armv6m-arm-none-eabi -mcpu=cortex-m0 t.c
>
>
>Kind regards,
>Evgeny
>
>-----Original Message-----
>From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] 
>On Behalf Of qiuw at ichaier.com
>Sent: 05 March 2015 03:53
>To: llvmdev
>Subject: [LLVMdev] A question to LLVM for ARMv6
>
>Hi, all
>
>I want to use LLVM to compile an ARM Cortex-M0 project on windows. Who 
>can send me a sample, including command arguments and introdution about 
>debug process. Thanks a lot.
>
>-Steven
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