Re: [PATCH 1/2] linux-user: Add move_mount() syscall

[Laurent Vivier]

Le 24/04/2023 à 17:34, Thomas Weißschuh a écrit :

Signed-off-by: Thomas Weißschuh <tho...@t-8ch.de>
---
  linux-user/syscall.c | 27 +++++++++++++++++++++++++++
  1 file changed, 27 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 69f740ff98c8..95e370130cee 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -9139,6 +9139,33 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int 
num, abi_long arg1,
          unlock_user(p, arg1, 0);
          return ret;
  #endif
+#ifdef TARGET_NR_move_mount
+    case TARGET_NR_move_mount:
+        {
+            void *p2, *p4;
+
+            if (!arg2 || !arg4) {
+                return -TARGET_EFAULT;
+            }
+
+            p2 = lock_user_string(arg2);
+            if (!p2) {
+                return -TARGET_EFAULT;
+            }
+
+            p4 = lock_user_string(arg4);
+            if (!p4) {
+                unlock_user(p2, arg2, 0);
+                return -TARGET_EFAULT;
+            }
+            ret = get_errno(move_mount(arg1, p2, arg3, p4, arg5));
+
+            unlock_user(p2, arg2, 0);
+            unlock_user(p4, arg4, 0);
+
+            return ret;
+        }
+#endif
  #ifdef TARGET_NR_stime /* not on alpha */
      case TARGET_NR_stime:
          {

base-commit: 81072abf1575b11226b3779af76dc71dfa85ee5d

Applied to my linux-user-for-8.1 branch.

Thanks,
Laurent