From: Pedro Alves <palves@redhat.com>
Date: Sat, 1 May 2010 15:46:26 +0000 (+0000)
Subject: 	* linux-low.c (linux_enable_event_reporting): New.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1e7fc18c9c8e6e06e38ecc80ba3cbb65e3ef06a8;p=binutils-gdb.git

	* linux-low.c (linux_enable_event_reporting): New.
	(linux_wait_for_event_1, handle_extended_wait): Use it.
---

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 4e95c4f32f5..15f2176df36 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,8 @@
+2010-05-01  Pedro Alves  <pedro@codesourcery.com>
+
+	* linux-low.c (linux_enable_event_reporting): New.
+	(linux_wait_for_event_1, handle_extended_wait): Use it.
+
 2010-04-30  Pedro Alves  <pedro@codesourcery.com>
 
 	* linux-low.c (linux_kill_one_lwp, linux_kill)
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 3954d2ddb4f..302f7028578 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -150,6 +150,7 @@ static void unstop_all_lwps (struct lwp_info *except);
 static int finish_step_over (struct lwp_info *lwp);
 static CORE_ADDR get_stop_pc (struct lwp_info *lwp);
 static int kill_lwp (unsigned long lwpid, int signo);
+static void linux_enable_event_reporting (int pid);
 
 /* True if the low target can hardware single-step.  Such targets
    don't need a BREAKPOINT_REINSERT_ADDR callback.  */
@@ -396,7 +397,7 @@ handle_extended_wait (struct lwp_info *event_child, int wstat)
 	    warning ("wait returned unexpected status 0x%x", status);
 	}
 
-      ptrace (PTRACE_SETOPTIONS, new_pid, 0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE);
+      linux_enable_event_reporting (new_pid);
 
       ptid = ptid_build (pid_of (event_child), new_pid, 0);
       new_lwp = (struct lwp_info *) add_lwp (ptid);
@@ -1318,8 +1319,7 @@ linux_wait_for_event_1 (ptid_t ptid, int *wstat, int options)
 
       if (event_child->must_set_ptrace_flags)
 	{
-	  ptrace (PTRACE_SETOPTIONS, lwpid_of (event_child),
-		  0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE);
+	  linux_enable_event_reporting (lwpid_of (event_child));
 	  event_child->must_set_ptrace_flags = 0;
 	}
 
@@ -3415,6 +3415,15 @@ linux_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len)
 /* Non-zero if the kernel supports PTRACE_O_TRACEFORK.  */
 static int linux_supports_tracefork_flag;
 
+static void
+linux_enable_event_reporting (int pid)
+{
+  if (!linux_supports_tracefork_flag)
+    return;
+
+  ptrace (PTRACE_SETOPTIONS, pid, 0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE);
+}
+
 /* Helper functions for linux_test_for_tracefork, called via clone ().  */
 
 static int