On Aug 26, 2013, at 6:34 PM, Virgile Bello <[email protected]> wrote:

> From what I remember when I tested, hard-coding the ARM registers temporarily 
> + the runtime-length encoding patch (that I will commit soon) was enough to 
> to have a simple address breakpoint working.
> Backtrace didn't, but I didn't bother investigate further.

On Darwin, r7 is used as the frame pointer.  I think other platforms typically 
use r11?  That could explain the backtracing problems right there.  The 
g_register_infos table in the ABIMacOSX_arm.cpp ABI plugin and 
ABIMacOSX_arm::CreateDefaultUnwindPlan().
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