[PULL 11/12] linux-user: Add close_range() syscall

Helge Deller posted 12 patches 2 months, 1 week ago
Maintainers: Laurent Vivier <laurent@vivier.eu>, Richard Henderson <richard.henderson@linaro.org>
[PULL 11/12] linux-user: Add close_range() syscall
Posted by Helge Deller 2 months, 1 week ago
Signed-off-by: Helge Deller <deller@gmx.de>
---
 linux-user/strace.list |  3 +++
 linux-user/syscall.c   | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/linux-user/strace.list b/linux-user/strace.list
index 215d971b2a..ad9ef94689 100644
--- a/linux-user/strace.list
+++ b/linux-user/strace.list
@@ -103,6 +103,9 @@
 #ifdef TARGET_NR_close
 { TARGET_NR_close, "close" , "%s(%d)", NULL, NULL },
 #endif
+#ifdef TARGET_NR_close_range
+{ TARGET_NR_close_range, "close_range" , "%s(%d,%d,%d)", NULL, NULL },
+#endif
 #ifdef TARGET_NR_connect
 { TARGET_NR_connect, "connect" , "%s(%d,%#x,%d)", NULL, NULL },
 #endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index ca39acfceb..2e0e974562 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -338,6 +338,10 @@ _syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
 #ifdef __NR_exit_group
 _syscall1(int,exit_group,int,error_code)
 #endif
+#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
+#define __NR_sys_close_range __NR_close_range
+_syscall3(int,sys_close_range,int,first,int,last,int,flags)
+#endif
 #if defined(__NR_futex)
 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val,
           const struct timespec *,timeout,int *,uaddr2,int,val3)
@@ -8721,6 +8725,18 @@ static abi_long do_syscall1(CPUArchState *cpu_env, int num, abi_long arg1,
     case TARGET_NR_close:
         fd_trans_unregister(arg1);
         return get_errno(close(arg1));
+#if defined(__NR_close_range) && defined(TARGET_NR_close_range)
+    case TARGET_NR_close_range:
+        {
+            abi_long fd;
+            abi_long maxfd = (arg2 == (abi_long)-1) ? target_fd_max : arg2;
+
+            for (fd = arg1; fd <= maxfd; fd++) {
+                fd_trans_unregister(fd);
+            }
+        }
+        return get_errno(sys_close_range(arg1, arg2, arg3));
+#endif

     case TARGET_NR_brk:
         return do_brk(arg1);
--
2.37.3