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From: "Sam James" <sam@gentoo.org>
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Message-ID: <1733153234.88d805301c5ca721d66d5102aa6ba2747cb2771e.sam@gentoo>
Subject: [gentoo-commits] proj/crossdev:master commit in: /
X-VCS-Repository: proj/crossdev
X-VCS-Files: crossdev
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X-VCS-Committer-Name: Sam James
X-VCS-Revision: 88d805301c5ca721d66d5102aa6ba2747cb2771e
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Date: Mon, 2 Dec 2024 15:27:35 +0000 (UTC)
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commit: 88d805301c5ca721d66d5102aa6ba2747cb2771e
Author: Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Mon Dec 2 15:24:29 2024 +0000
Commit: Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Mon Dec 2 15:27:14 2024 +0000
URL: https://gitweb.gentoo.org/proj/crossdev.git/commit/?id=88d80530
crossdev: nvptx: enable zlib+zstd for LTO
LTO is used behind-the-scenes between the host and offload to communicate
data. We need to use the same compression for both. It's easiest if we just
enable both supported compression formats in the offload compiler: zlib
and zstd.
Bug: https://bugs.gentoo.org/945296
Signed-off-by: Sam James <sam <AT> gentoo.org>
crossdev | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/crossdev b/crossdev
index 747ee10..c400ff1 100755
--- a/crossdev
+++ b/crossdev
@@ -315,6 +315,10 @@ parse_target() {
GMASK+=" default-stack-clash-protection hardened ssp"
GUSE+=" -hardened" #687598, needs -fstack-check=specific support
GUSE+=" -default-stack-clash-protection -ssp" # SSP isn't supported for freestanding anyway
+ # Offloading uses LTO to stream data, we need to make sure
+ # we support whatever compression the host compiler uses
+ # for that.
+ GUSE+=" zlib zstd"
MULTILIB_USE="yes" #407275
WITH_DEF_HEADERS="no"
@@ -901,7 +905,7 @@ AUTOGEN_TAG="# Autogenerated and managed by crossdev"
# not tested, or doesn't make sense, or no one simply cares about them
GUSE_DISABLE="-d -objc -objc++ -objc-gc -vtv"
# These are disabled only for stage1 gcc. Normally need libc presence.
-GUSE_DISABLE_STAGE_1="${GUSE_DISABLE} -fortran -go -jit -cxx -openmp -sanitize"
+GUSE_DISABLE_STAGE_1="${GUSE_DISABLE} -fortran -go -jit -cxx -openmp -sanitize -zstd -zlib"
# These are also disabled for stage2, but could be used later if dependencies
# are installed into ${SYSROOT}:
# - sanitize needs crypt.h: #799707