commit: 3f1be2af12937c77c962bb864a8254ffebedc15b
Author: Fabian Groffen <grobian <AT> gentoo <DOT> org>
AuthorDate: Sun Aug 11 16:18:52 2024 +0000
Commit: Fabian Groffen <grobian <AT> gentoo <DOT> org>
CommitDate: Sun Aug 11 16:18:52 2024 +0000
URL: https://gitweb.gentoo.org/repo/proj/prefix.git/commit/?id=3f1be2af
scripts/bootstrap-prefix: set CPU_FLAGS_* when we can
Signed-off-by: Fabian Groffen <grobian <AT> gentoo.org>
scripts/bootstrap-prefix.sh | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/scripts/bootstrap-prefix.sh b/scripts/bootstrap-prefix.sh
index dfdff4c99e..a20af50355 100755
--- a/scripts/bootstrap-prefix.sh
+++ b/scripts/bootstrap-prefix.sh
@@ -3289,6 +3289,47 @@ EOF
[[ ${STOP_BOOTSTRAP_AFTER} == stage3 ]] && exit 0
+ # do some sanity USE-flag enabling based on CPU, use cpuid2cpuflags
+ # if keyworded for this arg, else see if there's fallbacks to be
+ # made
+ mkdir -p "${EPREFIX}/etc/portage/package.use"
+ if emerge -1v cpuid2cpuflags ; then
+ hash -r
+ echo "*/* $(cpuid2cpuflags)" \
+ > "${EPREFIX}/etc/portage/package.use/00cpu-flags"
+ else
+ case "${CHOST}" in
+ arm64-*darwin*)
+ # https://github.com/RustCrypto/utils/issues/378
+ local flags=( "aes" "sha1" "sha2" )
+ local line
+ sysctl hw.optional | while read -r line ; do
+ line=${line#hw.optional.}
+ [[ ${line%%*: } == "1" ]] || continue
+ line=${line%: *}
+ case "${line}" in
+ "neon")
+ flags+=( "${line}" )
+ ;;
+ "armv8_"*)
+ line=${line#armv8_}
+ case "${line}" in
+ "crc32")
+
flags+=( "${line}" )
+ ;;
+ "2_sha"*)
+
flags+=( "${line#2_}" )
+ ;;
+ esac
+ ;;
+ esac
+ done
+ echo "*/* CPU_FLAGS_ARM: ${flags}" \
+ >
"${EPREFIX}/etc/portage/package.use/00cpu-flags"
+ ;;
+ esac
+ fi
+
local cmd="emerge -v --deep --update --changed-use @world"
if [[ -e ${EPREFIX}/var/cache/edb/mtimedb ]] && \
grep -q resume "${EPREFIX}"/var/cache/edb/mtimedb ;
