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| author | Maxim Cournoyer <maxim@guixotic.coop> | 2025-10-17 23:12:27 +0900 |
|---|---|---|
| committer | Maxim Cournoyer <maxim@guixotic.coop> | 2025-10-29 11:34:28 +0900 |
| commit | 1eccea7ffb7eac43670d5fd76e8afa8ecfe6b0b9 (patch) | |
| tree | 1f40d89649f5449aa3524e2301c186ca94ea73d3 /tests/syscalls.scm | |
| parent | 3966f7629723c68e49b66fdf05feab901f8741ac (diff) | |
build/syscalls: Introduce new safe-clone and use it.
* guix/build/syscalls.scm (without-automatic-finalization): Accept multiple
expressions.
(without-garbage-collection): New syntax.
(without-threads): Likewise.
(ensure-signal-delivery-thread, safe-clone): New procedures.
* tests/syscalls.scm: ("clone and unshare triggers EINVAL")
("safe-clone and unshare succeeds"): New tests.
* gnu/build/linux-container.scm (run-container): Adjust to use 'safe-clone'.
Relates-to: #1169
Change-Id: I044c11a899e24e547a7aed97f30c8e7250ab5363
Diffstat (limited to 'tests/syscalls.scm')
| -rw-r--r-- | tests/syscalls.scm | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/tests/syscalls.scm b/tests/syscalls.scm index 879c3e4f254..a0483e68f08 100644 --- a/tests/syscalls.scm +++ b/tests/syscalls.scm @@ -3,6 +3,7 @@ ;;; Copyright © 2015 David Thompson <davet@gnu.org> ;;; Copyright © 2020 Simon South <simon@simonsouth.net> ;;; Copyright © 2020 Mathieu Othacehe <m.othacehe@gmail.com> +;;; Copyright © 2025 Maxim Cournoyer <maxim@guixotic.coop> ;;; ;;; This file is part of GNU Guix. ;;; @@ -29,7 +30,8 @@ #:use-module (srfi srfi-71) #:use-module (system foreign) #:use-module ((ice-9 ftw) #:select (scandir)) - #:use-module (ice-9 match)) + #:use-module (ice-9 match) + #:use-module (ice-9 threads)) ;; Test the (guix build syscalls) module, although there's not much that can ;; actually be tested without being root. @@ -158,6 +160,38 @@ (lambda args (system-error-errno args)))) +(define child-thunk + (lambda () + (gc) ;spawn GC threads + (primitive-exit + (catch 'system-error + (lambda () + (unshare CLONE_THREAD) + 0) ;no error + (lambda args + (system-error-errno args)))))) + +(define parent-proc + (lambda (pid) + (match (waitpid pid) + ((_ . status) + (status:exit-val status))))) + +(unless perform-container-tests? + (test-skip 1)) +(test-equal "clone and unshare triggers EINVAL" + EINVAL + (match (clone (logior CLONE_NEWUSER SIGCHLD)) + (0 (child-thunk)) + (pid (parent-proc pid)))) + +(unless perform-container-tests? + (test-skip 1)) +(test-equal "safe-clone and unshare succeeds" + 0 + (safe-clone (logior CLONE_NEWUSER SIGCHLD) + child-thunk parent-proc)) + (unless perform-container-tests? (test-skip 1)) (test-assert "setns" |