Received: from eggs.gnu.org ([2001:4830:134:3::10]:59392) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gE3mB-0006UF-RA for qemu-devel@nongnu.org; Sat, 20 Oct 2018 22:47:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gE3kZ-00033u-4c for qemu-devel@nongnu.org; Sat, 20 Oct 2018 22:45:55 -0400 Received: from mail-lf1-x143.google.com ([2a00:1450:4864:20::143]:41456) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gE3kY-00033g-SX for qemu-devel@nongnu.org; Sat, 20 Oct 2018 22:45:55 -0400 Received: by mail-lf1-x143.google.com with SMTP id q39-v6so27840769lfi.8 for ; Sat, 20 Oct 2018 19:45:54 -0700 (PDT) From: Max Filippov Date: Sat, 20 Oct 2018 19:45:36 -0700 Message-Id: <20181021024536.9748-1-jcmvbkbc@gmail.com> Subject: [Qemu-devel] [PATCH] scripts/qemu-binfmt-conf.sh: add bFL handler registration List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Laurent Vivier , Max Filippov bFLT format header doesn't have enough information to register a handler for a specific architecture. Add switch -f / --flat that registers one of the qemu binaries as a handler for bFLT executable images. Signed-off-by: Max Filippov --- dtc | 2 +- scripts/qemu-binfmt-conf.sh | 32 ++++++++++++++++++++++++++++++-- 2 files changed, 31 insertions(+), 3 deletions(-) diff --git a/dtc b/dtc index 88f18909db73..e54388015af1 160000 --- a/dtc +++ b/dtc @@ -1 +1 @@ -Subproject commit 88f18909db731a627456f26d779445f84e449536 +Subproject commit e54388015af1fb4bf04d0bca99caba1074d9cc42 diff --git a/scripts/qemu-binfmt-conf.sh b/scripts/qemu-binfmt-conf.sh index b5a16742a149..39f61065c698 100755 --- a/scripts/qemu-binfmt-conf.sh +++ b/scripts/qemu-binfmt-conf.sh @@ -132,6 +132,9 @@ or1k_magic='\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\ or1k_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff' or1k_family=or1k +flat_magic='bFLT\x00\x00\x00\x04' +flat_mask='\xff\xff\xff\xff\xff\xff\xff\xff' + qemu_get_family() { cpu=${HOST_ARCH:-$(uname -m)} case "$cpu" in @@ -170,6 +173,7 @@ usage() { Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU] [--help][--credential yes|no][--exportdir PATH] [--persistent yes|no][--qemu-suffix SUFFIX] + [--flat CPU] Configure binfmt_misc to use qemu interpreter @@ -188,7 +192,9 @@ Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU] calculated according to the binary to interpret --persistent: if yes, the interpreter is loaded when binfmt is configured and remains in memory. All future uses - are cloned from the open file. + are cloned from the open file + --flat: register QEMU for this CPU architecture as a handler + for the bFLT executable format. To import templates with update-binfmts, use : @@ -311,6 +317,13 @@ qemu_set_binfmts() { $BINFMT_SET fi done + if [ -n "$QEMU_FLAT" ] ; then + cpu="${QEMU_FLAT}_bflt" + qemu="$QEMU_PATH/qemu-$QEMU_FLAT" + magic=$flat_magic + mask=$flat_mask + $BINFMT_SET + fi } CHECK=qemu_check_bintfmt_misc @@ -324,7 +337,7 @@ CREDENTIAL=no PERSISTENT=no QEMU_SUFFIX="" -options=$(getopt -o ds:Q:S:e:hc:p: -l debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,persistent: -- "$@") +options=$(getopt -o ds:Q:S:e:hc:p:f: -l debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,persistent:,flat: -- "$@") eval set -- "$options" while true ; do @@ -380,6 +393,21 @@ while true ; do shift PERSISTENT="$1" ;; + -f|--flat) + shift + QEMU_FLAT="$1" + for cpu in ${qemu_target_list} ; do + if [ "$cpu" = "$1" ] ; then + break + fi + done + + if [ "$cpu" != "$1" ] ; then + echo "ERROR: unknown CPU \"$1\"" 1>&2 + usage + exit 1 + fi + ;; *) break ;; -- 2.11.0