Problem with counting code coverage lines - return statement

Problem with counting code coverage lines - return statement

[Sara Graovac]

[-- Attachment #1: Type: text/plain, Size: 1000 bytes --]


Hi,

We use your tool gcov, exactly lcov, for code coverage. It is important to us.
We find a problem with counting lines, when in return statement call the
other function and the arguments of the function are on two lines, because of alignment.

Sometimes it counts only first line, sometimes it counts both lines.
In my current project first line is counted 109 times, the second one is counted 14 times.

I send you the example of return statement, please see attachment.

I tried to find where the problem is.
Can you help me to fix it?

Kind regards,
Sara Graovac
Contactor Syrmia
Software Engineer
Virtualization

Office:
Djordja Stanojevica 12
11070 Belgrade, Serbia
Phone: +(381)-21-4831-210
E-mail: sara.graovac@amd.com<mailto:sara.graovac@amd.com>
               sara.graovac@syrmia.com<mailto:sara.graovac@syrmia.com>

Headquarters:
Syrmia LLC @ Belgrade Office Park
Djordja Stanojevica 12,
11070 Belgrade, Serbia
www.syrmia.com<http://www.syrmia.com/>


[-- Attachment #2: return_example.cpp --]
[-- Type: text/plain, Size: 626 bytes --]

#include  <iostream>

using namespace std;

int f1(const char *name, const char *surname, uint32_t ages,
        const char *curr_addr){
        
        return ages;
}

int f2(bool val){
        const char *name = "Mary";
        const char *surname = "Connor";
        const char *addr = "123 Main St, Apartment 2 New York, NY 11111";
        if(val){
                return -1;
        }else{
                return f1(name, surname, 42,
                                addr);
        }
}

int main(){
        int ret = 0;
        ret = f2(false);
        cout << ret << endl;
        return 0;
}

RE: Problem with counting code coverage lines - return statement

[Sara Graovac]

Hi,

Do you have time to look at this?

Best regards,
Sara Graovac

From: Sara Graovac
Sent: 21 September, 2021 16:15
To: gcc-help@gcc.gnu.org
Subject: Problem with counting code coverage lines - return statement


Hi,

We use your tool gcov, exactly lcov, for code coverage. It is important to us.
We find a problem with counting lines, when in return statement call the
other function and the arguments of the function are on two lines, because of alignment.

Sometimes it counts only first line, sometimes it counts both lines.
In my current project first line is counted 109 times, the second one is counted 14 times.

I send you the example of return statement, please see attachment.

I tried to find where the problem is.
Can you help me to fix it?

Kind regards,
Sara Graovac
Contactor Syrmia
Software Engineer
Virtualization

Office:
Djordja Stanojevica 12
11070 Belgrade, Serbia
Phone: +(381)-21-4831-210
E-mail: sara.graovac@amd.com<mailto:sara.graovac@amd.com>
               sara.graovac@syrmia.com<mailto:sara.graovac@syrmia.com>

Headquarters:
Syrmia LLC @ Belgrade Office Park
Djordja Stanojevica 12,
11070 Belgrade, Serbia
www.syrmia.com<http://www.syrmia.com/>

Re: Problem with counting code coverage lines - return statement

[Dan Kegel]

I suspect it may have to do with optimization, does it persist at -O1 or
-O0?

See https://gcc.gnu.org/onlinedocs/gcc/Gcov-and-Optimization.html
- Dan

Sara Graovac <Sara.Graovac@syrmia.com> schrieb am Mo., 4. Okt. 2021, 00:31:

> Hi,
>
> Do you have time to look at this?
>
> Best regards,
> Sara Graovac
>
> From: Sara Graovac
> Sent: 21 September, 2021 16:15
> To: gcc-help@gcc.gnu.org
> Subject: Problem with counting code coverage lines - return statement
>
>
> Hi,
>
> We use your tool gcov, exactly lcov, for code coverage. It is important to
> us.
> We find a problem with counting lines, when in return statement call the
> other function and the arguments of the function are on two lines, because
> of alignment.
>
> Sometimes it counts only first line, sometimes it counts both lines.
> In my current project first line is counted 109 times, the second one is
> counted 14 times.
>
> I send you the example of return statement, please see attachment.
>
> I tried to find where the problem is.
> Can you help me to fix it?
>
> Kind regards,
> Sara Graovac
> Contactor Syrmia
> Software Engineer
> Virtualization
>
> Office:
> Djordja Stanojevica 12
> 11070 Belgrade, Serbia
> Phone: +(381)-21-4831-210
> E-mail: sara.graovac@amd.com<mailto:sara.graovac@amd.com>
>                sara.graovac@syrmia.com<mailto:sara.graovac@syrmia.com>
>
> Headquarters:
> Syrmia LLC @ Belgrade Office Park
> Djordja Stanojevica 12,
> 11070 Belgrade, Serbia
> www.syrmia.com<http://www.syrmia.com/>
>
>