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
Mac OS X 10.6 - Generated Thu Sep 17 20:09:27 CDT 2009