* Gcc profile questions
@ 2019-02-19 16:19 Qing Zhao
2019-02-19 17:07 ` Richard Biener
0 siblings, 1 reply; 2+ messages in thread
From: Qing Zhao @ 2019-02-19 16:19 UTC (permalink / raw)
To: gcc
Hi,
Suppose we have a program called foo which is built with gcc -fprofile-generate, Now when foo is executed a bunch of .gcda files are created.
What happens when foo is executed more than once. Are the .gcda files updated with each execution? Or are the .gcda files overwritten with new .gcda files (and thus contain profile info only for the last execution)?
Thanks for the info.
Qing
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Gcc profile questions
2019-02-19 16:19 Gcc profile questions Qing Zhao
@ 2019-02-19 17:07 ` Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2019-02-19 17:07 UTC (permalink / raw)
To: gcc, Qing Zhao
On February 19, 2019 5:19:11 PM GMT+01:00, Qing Zhao <qing.zhao@oracle.com> wrote:
>Hi,
>
>Suppose we have a program called foo which is built with gcc
>-fprofile-generate, Now when foo is executed a bunch of .gcda files
>are created.
>
>What happens when foo is executed more than once. Are the .gcda files
>updated with each execution?
Yes.
Or are the .gcda files overwritten with
>new .gcda files (and thus contain profile info only for the last
>execution)?
>
>Thanks for the info.
>
>Qing
^ permalink raw reply [flat|nested] 2+ messages in thread
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2019-02-19 16:19 Gcc profile questions Qing Zhao
2019-02-19 17:07 ` Richard Biener
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