[PATCH 6/9] unwind: allow to specify unwinder back-end with -k option

[Dmitry V. Levin]

On Wed, Mar 14, 2018 at 02:28:11AM +0900, Masatake YAMATO wrote:
> With this commit, -k option can take an optional argument
> specifying unwinder like:
> 
>   $ strace -klibunwind ...

I've actually tried to play with this, and the first obstacle is
that this commit introduces a compilation warning:

strace.c: In function 'init':
strace.c:1795:3: error: 'unwinder_name' may be used uninitialized in this function [-Werror=maybe-uninitialized]
   unwind_init(unwinder_name);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~

It turns into an error when strace build is configured with
--enable-gcc-Werror, which is the right thing to do when developing
on up to date platforms.


-- 
ldv
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