[LLVMdev] LLVM Coverage GCDA Flush API

[John Harrison]

http://llvm.org/bugs/show_bug.cgi?id=15191 Filed a bug with a small sample
to show the problem.

--
John Harrison


On Wed, Feb 6, 2013 at 4:16 PM, Bob Wilson <bob.wilson at apple.com> wrote:

> Yikes!  It only flushes the counts for the current compilation unit?  That
> sounds like a terrible bug.  Can you file a bugzilla report, please?
>
> On Feb 6, 2013, at 12:05 PM, John Harrison <ash.gti at gmail.com> wrote:
>
> Why does __gcov_flush only flush the current compilation unit? For gcc
> __gcov_flush flushes all of the loaded files.
>
> Is there a way to have __gcov_flush flush everything?
>
> --
> John Harrison
>
>
> On Wed, Feb 6, 2013 at 10:24 AM, John Harrison <ash.gti at gmail.com> wrote:
>
>> Ah, my mistake. So this already works. I guess that bug is out of date,
>> since this feature works already.
>>
>> --
>> John Harrison
>>
>>
>> On Wed, Feb 6, 2013 at 10:00 AM, Joshua Cranmer <pidgeot18 at gmail.com>wrote:
>>
>>> On 2/6/2013 11:43 AM, John Harrison wrote:
>>>
>>>> The way `-ftest-coverage -fprofile-arcs` works at the moment it only
>>>> flushes via `atexit()`. This patch allows you to flush the coverage at any
>>>> point by calling `__llvm_gcov_flush` the same way `__gcov_flush` works for
>>>> gcc.
>>>>
>>>> If there is another way of doing this, I might of missed it but I was
>>>> looking for `__gcov_flush` and I did not find the equivalent in llvm at the
>>>> moment.
>>>>
>>>
>>> __gcov_flush is added by the GCOVProfiling.cpp pass by
>>> GCOVProfiler::insertFlush.
>>>
>>> --
>>> Joshua Cranmer
>>> News submodule owner
>>> DXR coauthor
>>>
>>>
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>>
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