On Thu, 2022-02-03 at 14:11 -0800, Khem Raj wrote: > > > On Thu, Feb 3, 2022 at 1:59 PM Richard Purdie > <richard.pur...@linuxfoundation.org> wrote: > > 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? > > > > > Perhaps use —with-zstd configure switch maybe via package config but it’s > better to enable it always >
Agreed, I'm fine with enabling it, I'd just like to be explicit about what we're doing. Cheers, Richard
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