[LLVMdev] ARM Debug support patch

[Evan Cheng]

I've committed the patch with some fixes. It allows ARM target to  
generate Dwarf information. However, I did not have much luck  
debugging llvm produced executables. I would appreciate it very much  
if you can put the debug support to test and contribute more patches.

Thanks,

Evan

On Dec 10, 2008, at 8:38 AM, Mike-1 wrote:

>
> Hi all,
>
> FlexyCore, the company I am working for, use LLVM to generate binary  
> for ARM
> platform. We are very fulfilled with LLVM, and FlexyCore will be  
> pleased to
> contribute on this software.
>
>
> We need debug support in ARM binary, but, in LLVM 2.4, this support  
> is not
> activated for ARM backend. Consequently, I made small modifications  
> in order
> to activate it (see the patch in attach file). My experience is not  
> enough
> on LLVM to know if it is the right way to solve the problem. But these
> modifications work on our use cases.
>
>
>
> Could you help us in order to check if these modifications are  
> corrects or
> not ? If it is not the right way, could you explain us how to solve  
> this
> problem in the correct way, and we will be pleased to re-submit  
> patch on
> this issue.
>
> I also use 'make check' command in order to verify that  
> modifications does
> not generate regressions.
> Results are:
>
>    * Without ARM debug support
>      ===  Summary ===
>      # of expected passes        2726
>      # of unexpected failures    58
>      # of expected failures        6
>    * With ARM debug support
>      ===  Summary ===
>      # of expected passes        2727
>      # of unexpected failures    57
>      # of expected failures        6
>
> The extra success test is funccall.ll from test/DebugInfo. In order  
> to build
> successfully LLVM on ARM Linux EABI platform, I put in comment the  
> usage of
> __register_frame into JIT.cpp because it seems that __register_frame
> function is not into my libgcc. Could you mention which tools and  
> versions
> that must to be used in order to build LLVM on ARM Linux EABI  
> platform.
>
> Thanks,
>
> Mikaël.
>
> http://www.nabble.com/file/p20938563/arm-debug-from-llvm2-4.patch
> arm-debug-from-llvm2-4.patch
> -- 
> View this message in context: http://www.nabble.com/ARM-Debug-support-patch-tp20938563p20938563.html
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>
>
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