[PATCH] D19271: Change CALL_ONCE_INITIALIZATION implementation to use static initialization

[David Blaikie via llvm-commits]

On Fri, Jun 3, 2016 at 12:53 AM, Kamil Rytarowski via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> krytarowski added a comment.
>
> I'm declaring myself responsible for this bug. gdb(1) so far isn't helping
> at all, it disregards setting breakpoints even in main() of:
>
>   $ cat test.cpp
>   #include <iostream>
>   #include <thread>
>   #include <mutex>
>
>   std::once_flag flag;
>
>   int main()
>   {
>       std::call_once(flag, [](){ std::cout << "Simple example: called
> once\n"; });
>   }
>

Works for me:

(gdb) break main
Breakpoint 1 at 0x4009d6: file call.cpp, line 8.
(gdb) r
Starting program: /tmp/dbginfo/a.out
Loading gdb's copy of v18 libstdc++ pretty-printers.

Breakpoint 1, main () at call.cpp:8

(but I'm not following this thread, perhaps there's some particular
situation/condition in which you're trying this where it doesn't work
& I didn't catch that context)



>
> I will keep you posted.
>
>
> http://reviews.llvm.org/D19271
>
>
>
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