Re: [PATCH] conf/bitbake.conf: Remove debug flags for native and nativesdk builds

[Deepesh Varatharajan <deepesh.varatharajan@windriver.com>]

Hi All,

Testing results :

qemux86-64

time taken for bitbake clang & bitbake gcc for debug builds

with (-g -Og)                        with(-O2)            Diff
  real    46m43.329s             real    41m28.778s             -5m 14.551s
  user    0m22.136s              user    0m22.134s -0.002s
  sys     0m3.048s                  sys     0m3.020s  -0.028s

tmp Dir
size 86 GB                            size 38 GB           -48 GB


qemuarm64

time taken for bitbake clang & bitbake gcc  for debug builds

  with (-g -Og)                       with(-O2)          Diff
  real    48m26.788s            real    41m46.814s            -6m 39.974s
  user    0m30.930s             user    0m21.854s  -9.076s
  sys     0m4.068s                 sys     0m3.085s -0.983s

tmp Dir
size 92 GB                            size 41 GB        -51 GB

Regards,
Deepesh

On 23-10-2025 17:04, Deepesh.Varatharajan@windriver.com wrote:
> From: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
>
> The native and nativesdk builds were previously using the '-Og -g' flags
> during debug builds. This resulted in increased disk usage and few linker
> memory issues due to the large debug information generated.
>
> Since native and nativesdk components do not require debug symbols,
> update the build flags to use '-O2' instead of '-Og -g' for these builds.
> This reduces build size and avoids memory-related issues during linking.
>
> Signed-off-by: Deepesh Varatharajan <Deepesh.Varatharajan@windriver.com>
> ---
>   meta/conf/bitbake.conf | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
> index 5406e542db..d8f9f6c312 100644
> --- a/meta/conf/bitbake.conf
> +++ b/meta/conf/bitbake.conf
> @@ -663,7 +663,7 @@ DEBUG_OPTIMIZATION = "-Og ${DEBUG_LEVELFLAG}"
>   SELECTED_OPTIMIZATION = "${@d.getVar(oe.utils.vartrue('DEBUG_BUILD', 'DEBUG_OPTIMIZATION', 'FULL_OPTIMIZATION', d))}"
>   SELECTED_OPTIMIZATION[vardeps] += "FULL_OPTIMIZATION DEBUG_OPTIMIZATION DEBUG_BUILD"
>   # compiler flags for native/nativesdk
> -BUILD_OPTIMIZATION = "${@oe.utils.vartrue('DEBUG_BUILD', '-Og -g', '-O2', d)}"
> +BUILD_OPTIMIZATION = '-O2'
>   BUILD_OPTIMIZATION[vardeps] += "DEBUG_BUILD"
>   
>   ##################################################################