unwinddump man page on Darwin

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unwinddump(1)		  BSD General Commands Manual		 unwinddump(1)

NAME
     unwinddump — Displays compact unwind information in an executable

SYNOPSIS
     unwinddump [-arch arch-name] file(s)

DESCRIPTION
     When a C++ (or x86_64 Objective-C) exception is thrown, the runtime must
     unwind the stack looking for some function to catch the exception.	 Tra‐
     ditionally, the unwind information is stored in the __TEXT/__eh_frame
     section of each executable as Dwarf CFI (call frame information).	Begin‐
     ning in Mac OS X 10.6, the unwind information is also encoded in the
     __TEXT/__unwind_info section using a two-level lookup table of compact
     unwind encodings.

     The unwinddump tool displays the content of the __TEXT/__unwind_info sec‐
     tion.

SEE ALSO
     ld(1) dwarfdump(1)

Darwin			       November 7, 2008				Darwin
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