Commit 4019112cf1 for qemu.org

commit 4019112cf164e36616972d639e9432dea2824b1e
Author: Stacey Son <sson@FreeBSD.org>
Date:   Thu Feb 5 09:34:00 2026 -0700

    bsd-user: Implement System V semaphore calls

    Wire up semget(2) and semop(2) syscalls to get System V semaphore
    implementation, as well the undocumented __semctl used to implement the
    bits of the interface in libc.

    Signed-off-by: Stacey Son <sson@FreeBSD.org>
    Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
    Signed-off-by: Warner Losh <imp@bsdimp.com>

diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
index 4c1191b8f4..234bd78fd2 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -36,6 +36,7 @@
 #include "bsd-file.h"
 #include "bsd-mem.h"
 #include "bsd-proc.h"
+#include "bsd-misc.h"

 /* BSD dependent syscall shims */
 #include "os-stat.h"
@@ -878,6 +879,21 @@ static abi_long freebsd_syscall(void *cpu_env, int num, abi_long arg1,
         ret = do_bsd_shmdt(arg1);
         break;

+        /*
+         * System V Semaphores
+         */
+    case TARGET_FREEBSD_NR_semget: /* semget(2) */
+        ret = do_bsd_semget(arg1, arg2, arg3);
+        break;
+
+    case TARGET_FREEBSD_NR_semop: /* semop(2) */
+        ret = do_bsd_semop(arg1, arg2, arg3);
+        break;
+
+    case TARGET_FREEBSD_NR___semctl: { /* __semctl() undocumented */
+        ret = do_bsd___semctl(arg1, arg2, arg3, arg4);
+        break;
+    }
     case TARGET_FREEBSD_NR_freebsd11_vadvise:
         ret = do_bsd_vadvise();
         break;