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update link to unwind in book #31113

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Jan 23, 2016
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update link to unwind in book #31113

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15 changes: 8 additions & 7 deletions src/doc/book/no-stdlib.md
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Expand Up @@ -77,10 +77,11 @@ The compiler currently makes a few assumptions about symbols which are available
in the executable to call. Normally these functions are provided by the standard
library, but without it you must define your own.

The first of these two functions, `eh_personality`, is used by the
failure mechanisms of the compiler. This is often mapped to GCC's
personality function (see the
[libstd implementation](../std/rt/unwind/index.html) for more
information), but crates which do not trigger a panic can be assured
that this function is never called. The second function, `panic_fmt`, is
also used by the failure mechanisms of the compiler.
The first of these two functions, `eh_personality`, is used by the failure
mechanisms of the compiler. This is often mapped to GCC's personality function
(see the [libstd implementation][unwind] for more information), but crates
which do not trigger a panic can be assured that this function is never
called. The second function, `panic_fmt`, is also used by the failure
mechanisms of the compiler.

[unwind]: https://github.com/rust-lang/rust/blob/master/src/libstd/sys/common/unwind/gcc.rs