git: b2955191736a - stable/13 - sys_process.c: extract ptrace_unsuspend()
Konstantin Belousov
kib at FreeBSD.org
Tue Jun 1 00:50:45 UTC 2021
The branch stable/13 has been updated by kib:
URL: https://cgit.FreeBSD.org/src/commit/?id=b2955191736a73de74f465a23cf2d203102f0bd6
commit b2955191736a73de74f465a23cf2d203102f0bd6
Author: Konstantin Belousov <kib at FreeBSD.org>
AuthorDate: 2021-05-18 16:25:50 +0000
Commit: Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-06-01 00:38:53 +0000
sys_process.c: extract ptrace_unsuspend()
(cherry picked from commit d7a7ea5be60753c140a39ec6fa30e5ca4014dbb5)
---
sys/kern/sys_process.c | 20 ++++++++++++++------
sys/sys/ptrace.h | 3 +++
2 files changed, 17 insertions(+), 6 deletions(-)
diff --git a/sys/kern/sys_process.c b/sys/kern/sys_process.c
index bc38a8ee585d..2515a9cf1e4f 100644
--- a/sys/kern/sys_process.c
+++ b/sys/kern/sys_process.c
@@ -610,6 +610,19 @@ proc_set_traced(struct proc *p, bool stop)
p->p_ptevents = PTRACE_DEFAULT;
}
+void
+ptrace_unsuspend(struct proc *p)
+{
+ PROC_LOCK_ASSERT(p, MA_OWNED);
+
+ PROC_SLOCK(p);
+ p->p_flag &= ~(P_STOPPED_TRACE | P_STOPPED_SIG | P_WAITED);
+ thread_unsuspend(p);
+ PROC_SUNLOCK(p);
+ itimer_proc_continue(p);
+ kqtimer_proc_continue(p);
+}
+
static int
proc_can_ptrace(struct thread *td, struct proc *p)
{
@@ -1164,12 +1177,7 @@ kern_ptrace(struct thread *td, int req, pid_t pid, void *addr, int data)
* suspended, use PT_SUSPEND to suspend it before
* continuing the process.
*/
- PROC_SLOCK(p);
- p->p_flag &= ~(P_STOPPED_TRACE | P_STOPPED_SIG | P_WAITED);
- thread_unsuspend(p);
- PROC_SUNLOCK(p);
- itimer_proc_continue(p);
- kqtimer_proc_continue(p);
+ ptrace_unsuspend(p);
break;
case PT_WRITE_I:
diff --git a/sys/sys/ptrace.h b/sys/sys/ptrace.h
index 06f01a04fd9d..1e7c1c71056b 100644
--- a/sys/sys/ptrace.h
+++ b/sys/sys/ptrace.h
@@ -240,6 +240,9 @@ int proc_write_fpregs32(struct thread *_td, struct fpreg32 *_fpreg32);
int proc_read_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32);
int proc_write_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32);
#endif
+
+void ptrace_unsuspend(struct proc *p);
+
#else /* !_KERNEL */
#include <sys/cdefs.h>
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