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authorLudovic Courtès <ludo@gnu.org>2021-07-10 00:20:24 +0200
committerLudovic Courtès <ludo@gnu.org>2021-07-10 00:24:59 +0200
commit2ea2bca1ddb1e3ba9d843ff7544c22925de7f6d7 (patch)
tree1e32e539b55de2e07037f2e622cef611442c7fed /gnu/services/virtualization.scm
parent4ac2e09051d2962ee4dd3fe2b19b1b7f8052c567 (diff)
services: qemu-binfmt: Preserve argv[0] by default.
Previously, argv[0] would be replaced by the absolute file name of the executable. This could cause discrepancies, for example in the Coreutils test suite: <https://issues.guix.gnu.org/49485>. * gnu/services/virtualization.scm (<qemu-platform>)[flags]: Default to "FP".
Diffstat (limited to 'gnu/services/virtualization.scm')
-rw-r--r--gnu/services/virtualization.scm14
1 files changed, 12 insertions, 2 deletions
diff --git a/gnu/services/virtualization.scm b/gnu/services/virtualization.scm
index 36e9feb05c..c8adcd06d0 100644
--- a/gnu/services/virtualization.scm
+++ b/gnu/services/virtualization.scm
@@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Ryan Moe <ryan.moe@gmail.com>
-;;; Copyright © 2018, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2020,2021 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Guix.
@@ -561,7 +561,17 @@ potential infinite waits blocking libvirt."))
(family qemu-platform-family) ;string
(magic qemu-platform-magic) ;bytevector
(mask qemu-platform-mask) ;bytevector
- (flags qemu-platform-flags (default "F"))) ;string
+
+ ;; Default flags:
+ ;;
+ ;; "F": fix binary. Open the qemu-user binary (statically linked) as soon
+ ;; as binfmt_misc interpretation is handled.
+ ;;
+ ;; "P": preserve argv[0]. QEMU 6.0 detects whether it's started with this
+ ;; flag and automatically does the right thing. Without this flag,
+ ;; argv[0] is replaced by the absolute file name of the executable, an
+ ;; observable difference that can cause discrepancies.
+ (flags qemu-platform-flags (default "FP"))) ;string
(define-syntax bv
(lambda (s)