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authorAndrew Clayton <a.clayton@nginx.com>2022-11-18 23:42:44 +0000
committerAndrew Clayton <a.clayton@nginx.com>2022-11-18 23:42:44 +0000
commitb7f1d7253a8f44f31c2e1a8d9c8962ef30be83e9 (patch)
tree2d1c9b0f240f8667fcbabcd617fbef2e539511ec /auto/isolation
parent0277d8f1034f6f3dcdb5fd88dc3a9a3f04c1de89 (diff)
downloadunit-b7f1d7253a8f44f31c2e1a8d9c8962ef30be83e9.tar.gz
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Isolation: Rename NXT_HAVE_CLONE -> NXT_HAVE_LINUX_NS.
Due to the need to replace our use of clone/__NR_clone on Linux with fork(2)/unshare(2) for enabling Linux namespaces(7) to keep the pthreads(7) API working. Let's rename NXT_HAVE_CLONE to NXT_HAVE_LINUX_NS, i.e name it after the feature, not how it's implemented, then in future if we change how we do namespaces again we don't have to rename this. Reviewed-by: Alejandro Colomar <alx@nginx.com> Signed-off-by: Andrew Clayton <a.clayton@nginx.com>
Diffstat (limited to '')
-rw-r--r--auto/isolation14
1 files changed, 7 insertions, 7 deletions
diff --git a/auto/isolation b/auto/isolation
index b706c94d..27f44624 100644
--- a/auto/isolation
+++ b/auto/isolation
@@ -4,7 +4,7 @@
# Linux clone syscall.
NXT_ISOLATION=NO
-NXT_HAVE_CLONE=NO
+NXT_HAVE_LINUX_NS=NO
NXT_HAVE_CLONE_NEWUSER=NO
NXT_HAVE_MOUNT=NO
NXT_HAVE_UNMOUNT=NO
@@ -12,21 +12,21 @@ NXT_HAVE_ROOTFS=NO
nsflags="USER NS PID NET UTS CGROUP"
-nxt_feature="clone(2)"
-nxt_feature_name=NXT_HAVE_CLONE
+nxt_feature="Linux unshare()"
+nxt_feature_name=NXT_HAVE_LINUX_NS
nxt_feature_run=no
nxt_feature_incs=
nxt_feature_libs=
-nxt_feature_test="#include <sys/wait.h>
- #include <sys/syscall.h>
+nxt_feature_test="#define _GNU_SOURCE
+ #include <sched.h>
int main(void) {
- return SYS_clone | SIGCHLD;
+ return unshare(0);
}"
. auto/feature
if [ $nxt_found = yes ]; then
- NXT_HAVE_CLONE=YES
+ NXT_HAVE_LINUX_NS=YES
# Test all isolation flags
for flag in $nsflags; do