[Qemu-devel] [Bug 1817239] [NEW] add '--targets' option to qemu-binfmt-conf.sh

[umarcor]

Public bug reported:

I'd like to ask for the addition of option '--targets' to scripts/qemu-
binfmt-conf.sh, in order to allow registering the interpreters for the
given list of architectures only, instead of using all of the ones
defined in qemu_target_list. The following is a possible patch that
implements it:

 qemu-binfmt-conf.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/qemu-binfmt-conf.sh b/qemu-binfmt-conf.sh
index b5a1674..be4a19b 100644
--- a/qemu-binfmt-conf.sh
+++ b/qemu-binfmt-conf.sh
@@ -170,6 +170,7 @@ usage() {
 Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU]
                            [--help][--credential yes|no][--exportdir PATH]
                            [--persistent yes|no][--qemu-suffix SUFFIX]
+                           [--targets TARGETS]

        Configure binfmt_misc to use qemu interpreter

@@ -189,6 +190,8 @@ Usage: qemu-binfmt-conf.sh [--qemu-path 
PATH][--debian][--systemd CPU]
        --persistent:  if yes, the interpreter is loaded when binfmt is
                       configured and remains in memory. All future uses
                       are cloned from the open file.
+       --targets:     comma-separated list of targets. If provided, only
+                      the targets in the list are registered.

     To import templates with update-binfmts, use :

@@ -324,7 +327,7 @@ 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=$(getopt -o ds:Q:S:e:hc:p:t: -l 
debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,persistent:,targets:
 -- "$@")
 eval set -- "$options"

 while true ; do
@@ -380,6 +383,10 @@ while true ; do
         shift
         PERSISTENT="$1"
         ;;
+    -t|--targets)
+        shift
+        qemu_target_list="$(echo "$1" | tr ',' ' ')"
+        ;;
     *)
         break
         ;;
--
2.20.1

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1817239

Title:
  add '--targets' option to qemu-binfmt-conf.sh

Status in QEMU:
  New

Bug description:
  I'd like to ask for the addition of option '--targets' to scripts
  /qemu-binfmt-conf.sh, in order to allow registering the interpreters
  for the given list of architectures only, instead of using all of the
  ones defined in qemu_target_list. The following is a possible patch
  that implements it:

   qemu-binfmt-conf.sh | 9 ++++++++-
   1 file changed, 8 insertions(+), 1 deletion(-)

  diff --git a/qemu-binfmt-conf.sh b/qemu-binfmt-conf.sh
  index b5a1674..be4a19b 100644
  --- a/qemu-binfmt-conf.sh
  +++ b/qemu-binfmt-conf.sh
  @@ -170,6 +170,7 @@ usage() {
   Usage: qemu-binfmt-conf.sh [--qemu-path PATH][--debian][--systemd CPU]
                              [--help][--credential yes|no][--exportdir PATH]
                              [--persistent yes|no][--qemu-suffix SUFFIX]
  +                           [--targets TARGETS]

          Configure binfmt_misc to use qemu interpreter

  @@ -189,6 +190,8 @@ Usage: qemu-binfmt-conf.sh [--qemu-path 
PATH][--debian][--systemd CPU]
          --persistent:  if yes, the interpreter is loaded when binfmt is
                         configured and remains in memory. All future uses
                         are cloned from the open file.
  +       --targets:     comma-separated list of targets. If provided, only
  +                      the targets in the list are registered.

       To import templates with update-binfmts, use :

  @@ -324,7 +327,7 @@ 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=$(getopt -o ds:Q:S:e:hc:p:t: -l 
debian,systemd:,qemu-path:,qemu-suffix:,exportdir:,help,credential:,persistent:,targets:
 -- "$@")
   eval set -- "$options"

   while true ; do
  @@ -380,6 +383,10 @@ while true ; do
           shift
           PERSISTENT="$1"
           ;;
  +    -t|--targets)
  +        shift
  +        qemu_target_list="$(echo "$1" | tr ',' ' ')"
  +        ;;
       *)
           break
           ;;
  --
  2.20.1

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