[Libunwind-devel] Question about unwinding methods in ARM

[Harald Servat]

Hello list,

  where can I get some information regarding the UNW_ARM_UNWIND_METHOD 
environment variable? I looked into include/tdep-arm/libunwind_i.h and I 
found the following alternatives

310 /* unwinding method selection support */
311 #define UNW_ARM_METHOD_ALL          0xFF
312 #define UNW_ARM_METHOD_DWARF        0x01
313 #define UNW_ARM_METHOD_FRAME        0x02
314 #define UNW_ARM_METHOD_EXIDX        0x04

  but I haven't found a description. What can and I can't get by using 
each of them?

Thank you very much!

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