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./wip/nongnu-libunwind-git, NONGNU libunwind

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Branch: CURRENT, Version: 1.1.0nb20180910, Package name: nongnu-libunwind-1.1.0nb20180910, Maintainer: pkgsrc-users

The primary goal of this project is to define a portable and efficient C
programming interface (API) to determine the call-chain of a program. The API
additionally provides the means to manipulate the preserved (callee-saved)
state of each call-frame and to resume execution at any point in the call-chain
(non-local goto). The API supports both local (same-process) and remote
(across-process) operation. As such, the API is useful in a number of
applications.

Some examples include:
- exception handling
The libunwind API makes it trivial to implement the stack-manipulation
aspects of exception handling.
- debuggers
The libunwind API makes it trivial for debuggers to generate the call-chain
(backtrace) of the threads in a running program.
- introspection
It is often useful for a running thread to determine its call-chain. For
example, this is useful to display error messages (to show how the error
came about) and for performance monitoring/analysis.
- efficient setjmp()
With libunwind, it is possible to implement an extremely efficient version
of setjmp(). Effectively, the only context that needs to be saved consists
of the stack-pointer(s).


Required to run:
[wip/llvm-git]

Required to build:
[devel/git-base] [pkgtools/cwrappers]

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