Dario Faggioli
737e8e003d
* Patches added (bsc#1186256): qemu-binfmt-conf.sh-allow-overriding-SUS.patch OBS-URL: https://build.opensuse.org/request/show/936343 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=678
66 lines
2.7 KiB
Diff
66 lines
2.7 KiB
Diff
From: Martin Wilck <mwilck@suse.com>
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Date: Wed, 19 May 2021 17:24:45 +0200
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Subject: qemu-binfmt-conf.sh: allow overriding SUSE-specific argv[0] handling
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Git-commit: 0000000000000000000000000000000000000000
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References: bsc#1186256
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Since abbc0ce ("qemu-binfmt-conf: use qemu-ARCH-binfmt"),
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qemu-binfmt-conf.sh automatically replaces the default qemu binfmt wrapper
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qemu-$ARCH with qemu-$ARCH-binfmt in order to ensure that argv[0] is
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preserved; qemu-$ARCH-binfmt is a link to qemu-binfmt, which is just a
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simple wrapper that mangles argv to achieve the desired result.
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This is inconvenient in some situations. In particular for running
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foreign-arch containers, it's useful to use the binfmt_misc "F" ("fix
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binary") flag to pre-load the qemu wrapper in the kernel. That way,
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foreign-arch containers can be run just like native containers, without
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having to bind-mount interpreters into the container. But that's impossible
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with the SUSE binfmt wrapper that needs to exec() a different (native)
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executable.
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As the qemu-binfmt-conf script supports the --qemu-suffix option anyway,
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use it to set the "-binfmt" suffix, thus allowing admins to override the
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SUSE default with the option "--qemu-suffix ''".
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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Acked-by: Jose R Ziviani <jose.ziviani@suse.com>
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Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
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---
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scripts/qemu-binfmt-conf.sh | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/scripts/qemu-binfmt-conf.sh b/scripts/qemu-binfmt-conf.sh
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index a73232edfd7f9dedb3a7c32218fb..93e2c7c83fded06c598b8e844464 100755
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--- a/scripts/qemu-binfmt-conf.sh
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+++ b/scripts/qemu-binfmt-conf.sh
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@@ -185,6 +185,7 @@ Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU]
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--help: display this usage
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--qemu-path: set path to qemu interpreter ($QEMU_PATH)
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--qemu-suffix: add a suffix to the default interpreter name
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+ (default: "-binfmt")
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--debian: don't write into /proc,
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instead generate update-binfmts templates
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--systemd: don't write into /proc,
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@@ -316,9 +317,9 @@ qemu_set_binfmts() {
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continue
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fi
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- qemu="$QEMU_PATH/qemu-$cpu-binfmt"
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+ qemu="$QEMU_PATH/qemu-$cpu"
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if [ "$cpu" = "i486" ] ; then
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- qemu="$QEMU_PATH/qemu-i386-binfmt"
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+ qemu="$QEMU_PATH/qemu-i386"
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fi
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qemu="$qemu$QEMU_SUFFIX"
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@@ -338,7 +339,7 @@ QEMU_PATH=/usr/bin
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CREDENTIAL=no
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PERSISTENT=no
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PRESERVE_ARG0=no
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-QEMU_SUFFIX=""
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+QEMU_SUFFIX="-binfmt"
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options=$(getopt -o ds:Q:S:e:hc:p:g:F: -l debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,persistent:,preserve-argv0: -- "$@")
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eval set -- "$options"
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