[FFmpeg-devel] Disable inlining when using --disable-optimizations

Diego Biurrun diego
Thu Jul 30 21:44:30 CEST 2009

On Thu, Jul 30, 2009 at 03:28:58PM -0400, Jeff Downs wrote:
> When debugging issues and crashes in ffmpeg recently, I found it helpful 
> to have a way to disable inlining so you can get real stack frames for 
> each function. --disable-optimizations gets you most of the way there, but 
> functions marked av_always_inline will still get inlined.
> Turns out there is already a case for disabling av_always_inline 
> (--enable-small); I extended the conditions for that to include 
> disabled optimizations.
> I've been using this for several weeks here and found it useful, so I 
> figured I'd post it.
> When using this I noticed that the existing way of turning off 
> av_always_inline causes warnings of redefinition; patch 
> silences the warnings, too.
> --- configure	(revision 19505)
> +++ configure	(working copy)
> @@ -2655,7 +2655,8 @@
> -if enabled small; then
> +if enabled small || disabled optimizations; then
> +    echo "#undef av_always_inline"  >> $TMPH
>      echo "#define av_always_inline"  >> $TMPH

Sounds reasonable, Mans?


More information about the ffmpeg-devel mailing list