On Thu, 2022-02-03 at 18:26 +0100, Enrico Scholz via lists.openembedded.org
wrote:
> gcc-10+ supports zstd compression of LTO bytecode. Install the
> corresponding package to enable this feature in a deterministic way.
>
> NOTE: previously built LTO object files (without this compression)
> must be regenerated; gcc will fail else with
>
> | lto1: internal compiler error: original not compressed with zstd
>
> in this case.
>
> NOTE: it seems to be possible that zstd support is enabled non
> deterministically (perhaps by host system pollution).
>
> I had the problem that the SDK gcc was built with zstd while the
> cross gcc was built without it. Libraries (built by cross gcc and
> uncompressed hence) could not be used with the SDK gcc.
>
> Signed-off-by: Enrico Scholz <enrico.sch...@sigma-chemnitz.de>
> ---
> meta/recipes-devtools/gcc/gcc-11.2.inc | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/meta/recipes-devtools/gcc/gcc-11.2.inc
> b/meta/recipes-devtools/gcc/gcc-11.2.inc
> index f07a5be507b3..62db035760aa 100644
> --- a/meta/recipes-devtools/gcc/gcc-11.2.inc
> +++ b/meta/recipes-devtools/gcc/gcc-11.2.inc
> @@ -11,7 +11,7 @@ BINV = "11.2.0"
> FILESEXTRAPATHS =. "${FILE_DIRNAME}/gcc:${FILE_DIRNAME}/gcc/backport:"
>
> DEPENDS =+ "mpfr gmp libmpc zlib flex-native"
> -NATIVEDEPS = "mpfr-native gmp-native libmpc-native zlib-native flex-native"
> +NATIVEDEPS = "mpfr-native gmp-native libmpc-native zlib-native flex-native
> zstd-native"
>
> LICENSE = "GPL-3.0-with-GCC-exception & GPLv3"
>
Should we be passing some flag to gcc explicitly to configure this
deterministicly?
Cheers,
Richard
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