From: Daniel Jacobowitz <drow@false.org>
Date: Sun, 29 Feb 2004 16:47:15 +0000 (+0000)
Subject: 	* linux-low.c (linux_wait): Unblock async I/O.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=62ea82f508b97190fce6018ef3545dff79de43cb;p=binutils-gdb.git

	* linux-low.c (linux_wait): Unblock async I/O.
	(linux_resume): Block and enable async I/O.
	* remote-utils.c (block_async_io, unblock_async_io): New functions.
	* server.h (block_async_io, unblock_async_io): Add prototypes.
---

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index ae1117f3a68..5066aafdd92 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,10 @@
+2004-02-29  Daniel Jacobowitz  <drow@mvista.com>
+
+	* linux-low.c (linux_wait): Unblock async I/O.
+	(linux_resume): Block and enable async I/O.
+	* remote-utils.c (block_async_io, unblock_async_io): New functions.
+	* server.h (block_async_io, unblock_async_io): Add prototypes.
+
 2004-02-29  Daniel Jacobowitz  <drow@mvista.com>
 
 	* remote-utils.c (remote_open): Print a status notice after
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 90efd01ebeb..ea155160e36 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -662,6 +662,7 @@ retry:
     }
 
   enable_async_io ();
+  unblock_async_io ();
   w = linux_wait_for_event (child);
   stop_all_processes ();
   disable_async_io ();
@@ -1017,7 +1018,11 @@ linux_resume (struct thread_resume *resume_info)
   if (pending_flag)
     for_each_inferior (&all_threads, linux_queue_one_thread);
   else
-    for_each_inferior (&all_threads, linux_continue_one_thread);
+    {
+      block_async_io ();
+      enable_async_io ();
+      for_each_inferior (&all_threads, linux_continue_one_thread);
+    }
 }
 
 #ifdef HAVE_LINUX_USRREGS
diff --git a/gdb/gdbserver/remote-utils.c b/gdb/gdbserver/remote-utils.c
index c9d198fb289..cd8c3c56cbd 100644
--- a/gdb/gdbserver/remote-utils.c
+++ b/gdb/gdbserver/remote-utils.c
@@ -367,6 +367,24 @@ input_interrupt (int unused)
     }
 }
 
+void
+block_async_io (void)
+{
+  sigset_t sigio_set;
+  sigemptyset (&sigio_set);
+  sigaddset (&sigio_set, SIGIO);
+  sigprocmask (SIG_BLOCK, &sigio_set, NULL);
+}
+
+void
+unblock_async_io (void)
+{
+  sigset_t sigio_set;
+  sigemptyset (&sigio_set);
+  sigaddset (&sigio_set, SIGIO);
+  sigprocmask (SIG_UNBLOCK, &sigio_set, NULL);
+}
+
 void
 enable_async_io (void)
 {
diff --git a/gdb/gdbserver/server.h b/gdb/gdbserver/server.h
index 5212deb2c4a..4896afb5856 100644
--- a/gdb/gdbserver/server.h
+++ b/gdb/gdbserver/server.h
@@ -134,6 +134,8 @@ void write_ok (char *buf);
 void write_enn (char *buf);
 void enable_async_io (void);
 void disable_async_io (void);
+void unblock_async_io (void);
+void block_async_io (void);
 void convert_ascii_to_int (char *from, char *to, int n);
 void convert_int_to_ascii (char *from, char *to, int n);
 void new_thread_notify (int id);