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[binutils-gdb] Enable range stepping if software single step is supported


https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=c38058942ececeb32c381a838a10277ba43be94c

commit c38058942ececeb32c381a838a10277ba43be94c
Author: Yao Qi <yao.qi@linaro.org>
Date:   Thu Oct 27 16:05:06 2016 +0100

    Enable range stepping if software single step is supported
    
    If the target can do software single step, it can do range
    stepping.
    
    gdb/gdbserver:
    
    2016-10-27  Yao Qi  <yao.qi@linaro.org>
    
    	* linux-low.c (linux_supports_agent): Return true if
    	can_software_single_step return true.

Diff:
---
 gdb/gdbserver/ChangeLog   | 5 +++++
 gdb/gdbserver/linux-low.c | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index c6bc016..f65607a 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,5 +1,10 @@
 2016-10-27  Yao Qi  <yao.qi@linaro.org>
 
+	* linux-low.c (linux_supports_range_stepping): Return true if
+	can_software_single_step return true.
+
+2016-10-27  Yao Qi  <yao.qi@linaro.org>
+
 	* inferiors.c (find_inferior_in_random): New function.
 	* inferiors.h (find_inferior_in_random): Declare.
 	* linux-low.c (linux_wait_for_event_filtered): Call
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c
index 5dcf376..b441ebc 100644
--- a/gdb/gdbserver/linux-low.c
+++ b/gdb/gdbserver/linux-low.c
@@ -6519,6 +6519,8 @@ linux_supports_agent (void)
 static int
 linux_supports_range_stepping (void)
 {
+  if (can_software_single_step ())
+    return 1;
   if (*the_low_target.supports_range_stepping == NULL)
     return 0;


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