diff mbox series

[v2,08/37] bsd-user: Add file operation system call dispatch

Message ID 20260518-misc-2026q2-v2-8-6c16fe448301@bsdimp.com
State New
Headers show
Series bsd-user: Upstream most of the remaining system calls | expand

Commit Message

Warner Losh May 18, 2026, 9:27 p.m. UTC 
Wire up additional file-related system calls: poll, lseek, pipe,
pipe2, swapon, swapoff, chflagsat, close_range, __realpathat,
copy_file_range, and __specialfd. Also fix __realpathat to use
__sys___realpathat on FreeBSD >= 15.0.

Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Assisted-by: Claude Opus 4.6 (1M context)
---
 bsd-user/freebsd/os-stat.h    |  8 +------
 bsd-user/freebsd/os-syscall.c | 51 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 7 deletions(-)

Comments

Pierrick Bouvier May 22, 2026, 10:57 p.m. UTC | #1 
On 5/18/2026 2:27 PM, Warner Losh wrote:
> Wire up additional file-related system calls: poll, lseek, pipe,
> pipe2, swapon, swapoff, chflagsat, close_range, __realpathat,
> copy_file_range, and __specialfd. Also fix __realpathat to use
> __sys___realpathat on FreeBSD >= 15.0.
> 
> Signed-off-by: Stacey Son <sson@FreeBSD.org>
> Signed-off-by: Warner Losh <imp@bsdimp.com>
> Assisted-by: Claude Opus 4.6 (1M context)
> ---
>  bsd-user/freebsd/os-stat.h    |  8 +------
>  bsd-user/freebsd/os-syscall.c | 51 +++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 52 insertions(+), 7 deletions(-)
> 

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
diff mbox series

Patch

diff --git a/bsd-user/freebsd/os-stat.h b/bsd-user/freebsd/os-stat.h
index ea95aa6344..4e5fc30de4 100644
--- a/bsd-user/freebsd/os-stat.h
+++ b/bsd-user/freebsd/os-stat.h
@@ -622,11 +622,6 @@  static inline abi_long do_freebsd_fcntl(abi_long arg1, abi_long arg2,
     return ret;
 }
 
-#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300080
-extern int __realpathat(int fd, const char *path, char *buf, size_t size,
-        int flags);
-/* https://svnweb.freebsd.org/base?view=revision&revision=358172 */
-/* no man page */
 static inline abi_long do_freebsd_realpathat(abi_long arg1, abi_long arg2,
         abi_long arg3, abi_long arg4, abi_long arg5)
 {
@@ -640,12 +635,11 @@  static inline abi_long do_freebsd_realpathat(abi_long arg1, abi_long arg2,
         return -TARGET_EFAULT;
     }
 
-    ret = get_errno(__realpathat(arg1, p, b, arg4, arg5));
+    ret = get_errno(syscall(SYS___realpathat, arg1, p, b, arg4, arg5));
     UNLOCK_PATH(p, arg2);
     unlock_user(b, arg3, ret);
 
     return ret;
 }
-#endif
 
 #endif /* BSD_USER_FREEBSD_OS_STAT_H */
diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
index 8a25be4ac7..228daed4c4 100644
--- a/bsd-user/freebsd/os-syscall.c
+++ b/bsd-user/freebsd/os-syscall.c
@@ -700,6 +700,57 @@  static abi_long freebsd_syscall(CPUArchState *env, int num, abi_long arg1,
         ret = do_bsd_undelete(arg1);
         break;
 
+    case TARGET_FREEBSD_NR_poll: /* poll(2) */
+        ret = do_bsd_poll(arg1, arg2, arg3);
+        break;
+
+    case TARGET_FREEBSD_NR_lseek: /* lseek(2) */
+        ret = do_bsd_lseek(env, arg1, arg2, arg3, arg4, arg5);
+        break;
+
+    case TARGET_FREEBSD_NR_freebsd10_pipe: /* pipe(2) */
+        ret = do_bsd_pipe(env, arg1);
+        break;
+
+    case TARGET_FREEBSD_NR_pipe2: /* pipe2(2) */
+        ret = do_bsd_pipe2(env, arg1, arg2);
+        break;
+
+    case TARGET_FREEBSD_NR_swapon: /* swapon(2) */
+        ret = do_bsd_swapon(arg1);
+        break;
+
+#if TARGET_FREEBSD_NR_freebsd13_swapoff
+    case TARGET_FREEBSD_NR_freebsd13_swapoff: /* freebsd13_swapoff(2) */
+        ret = do_freebsd13_swapoff(arg1);
+        break;
+#endif
+
+    case TARGET_FREEBSD_NR_swapoff: /* swapoff(2) */
+        ret = do_bsd_swapoff(arg1, arg2);
+        break;
+
+    case TARGET_FREEBSD_NR_chflagsat: /* chflagsat(2) */
+        ret = do_bsd_chflagsat(arg1, arg2, arg3, arg4);
+        break;
+
+    case TARGET_FREEBSD_NR_close_range: /* close_range(2) */
+        ret = do_freebsd_close_range(arg1, arg2, arg3);
+        break;
+
+    case TARGET_FREEBSD_NR___realpathat:
+        /* __realpathat(2) (XXX no realpathat()) */
+        ret = do_freebsd_realpathat(arg1, arg2, arg3, arg4, arg5);
+        break;
+
+    case TARGET_FREEBSD_NR_copy_file_range:
+        ret = do_freebsd_copy_file_range(arg1, arg2, arg3, arg4, arg5, arg6);
+        break;
+
+    case TARGET_FREEBSD_NR___specialfd:
+        ret = do_freebsd___specialfd(arg1, arg2, arg3);
+        break;
+
         /*
          * ioctl(2)
          */