diff mbox series

[PULL,43/51] bsd-user: Implement mlock(2), munlock(2), mlockall(2), munlockall(2), minherit(2)

Message ID 20231003233215.95557-44-imp@bsdimp.com (mailing list archive)
State New, archived
Headers show
Series [PULL,01/51] bsd-user: define TARGET_RFSPAWN for rfork to use vfork(2) semantics, and fix RLIM_INFINITY | expand

Commit Message

Warner Losh Oct. 3, 2023, 11:32 p.m. UTC 
From: Stacey Son <sson@FreeBSD.org>

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Karim Taha <kariem.taha2.7@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230925182709.4834-16-kariem.taha2.7@gmail.com>
---
 bsd-user/bsd-mem.h            | 37 +++++++++++++++++++++++++++++++++++
 bsd-user/freebsd/os-syscall.c | 20 +++++++++++++++++++
 2 files changed, 57 insertions(+)
diff mbox series

Patch

diff --git a/bsd-user/bsd-mem.h b/bsd-user/bsd-mem.h
index 5e885823a79..16c22593bfd 100644
--- a/bsd-user/bsd-mem.h
+++ b/bsd-user/bsd-mem.h
@@ -99,4 +99,41 @@  static inline abi_long do_bsd_msync(abi_long addr, abi_long len, abi_long flags)
     return get_errno(msync(g2h_untagged(addr), len, flags));
 }
 
+/* mlock(2) */
+static inline abi_long do_bsd_mlock(abi_long arg1, abi_long arg2)
+{
+    if (!guest_range_valid_untagged(arg1, arg2)) {
+        return -TARGET_EINVAL;
+    }
+    return get_errno(mlock(g2h_untagged(arg1), arg2));
+}
+
+/* munlock(2) */
+static inline abi_long do_bsd_munlock(abi_long arg1, abi_long arg2)
+{
+    if (!guest_range_valid_untagged(arg1, arg2)) {
+        return -TARGET_EINVAL;
+    }
+    return get_errno(munlock(g2h_untagged(arg1), arg2));
+}
+
+/* mlockall(2) */
+static inline abi_long do_bsd_mlockall(abi_long arg1)
+{
+    return get_errno(mlockall(arg1));
+}
+
+/* munlockall(2) */
+static inline abi_long do_bsd_munlockall(void)
+{
+    return get_errno(munlockall());
+}
+
+/* minherit(2) */
+static inline abi_long do_bsd_minherit(abi_long addr, abi_long len,
+        abi_long inherit)
+{
+    return get_errno(minherit(g2h_untagged(addr), len, inherit));
+}
+
 #endif /* BSD_USER_BSD_MEM_H */
diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
index 2525e0bc316..7a7ae26793f 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -815,6 +815,26 @@  static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
         ret = do_bsd_msync(arg1, arg2, arg3);
         break;
 
+    case TARGET_FREEBSD_NR_mlock: /* mlock(2) */
+        ret = do_bsd_mlock(arg1, arg2);
+        break;
+
+    case TARGET_FREEBSD_NR_munlock: /* munlock(2) */
+        ret = do_bsd_munlock(arg1, arg2);
+        break;
+
+    case TARGET_FREEBSD_NR_mlockall: /* mlockall(2) */
+        ret = do_bsd_mlockall(arg1);
+        break;
+
+    case TARGET_FREEBSD_NR_munlockall: /* munlockall(2) */
+        ret = do_bsd_munlockall();
+        break;
+
+    case TARGET_FREEBSD_NR_minherit: /* minherit(2) */
+        ret = do_bsd_minherit(arg1, arg2, arg3);
+        break;
+
 #if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048
     case TARGET_FREEBSD_NR_shm_open2: /* shm_open2(2) */
         ret = do_freebsd_shm_open2(arg1, arg2, arg3, arg4, arg5);