woj/nsjail
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

subproc: support CLONE_CLEAR_SIGHAND

Browse Source
This commit is contained in:
Robert Swiecki 2023-08-17 15:07:51 +02:00
parent 5e494a6a78
commit 611ef1c435
1 changed files with 11 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
subproc.cc
View File

@ -552,10 +552,20 @@ pid_t cloneProc(uint64_t flags, int exit_signal) {
#if defined(__NR_clone3)
struct clone_args ca = {};
ca.flags = flags;
ca.exit_signal = (uint64_t)exit_signal;
ca.flags = flags | CLONE_CLEAR_SIGHAND;
pid_t ret = util::syscall(__NR_clone3, (uintptr_t)&ca, sizeof(ca));
if (ret != -1) {
return ret;
}
/*
* Now try without CLONE_CLEAR_SIGHAND as it's supported since Linux 5.5, while clone3
* appeared in Linux 5.3
*/
ca.flags = flags;
ret = util::syscall(__NR_clone3, (uintptr_t)&ca, sizeof(ca));
if (ret != -1 || errno != ENOSYS) {
return ret;
}