From: Nick Clifton <nickc@redhat.com>
Date: Fri, 16 Feb 2001 22:04:22 +0000 (+0000)
Subject: Remove Prefetch abort for breakpoints.  Instead set the state to RESUME.
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=1a2c9bb7cbe2eeef1bca1668e638655947496e6f;p=pf3gnuchains%2Fpf3gnuchains3x.git

Remove Prefetch abort for breakpoints.  Instead set the state to RESUME.
---

diff --git a/sim/arm/ChangeLog b/sim/arm/ChangeLog
index 4b1331a766..7ed494d19a 100644
--- a/sim/arm/ChangeLog
+++ b/sim/arm/ChangeLog
@@ -1,3 +1,8 @@
+2001-02-16  Nick Clifton  <nickc@redhat.com>
+
+	* armemu.c: Remove Prefetch abort for breakpoints.  Instead set
+	the state to RESUME.
+
 2001-02-14  Nick Clifton  <nickc@redhat.com>
 
 	* armemu.c: Add code to preserve processor mode when a prefetch
diff --git a/sim/arm/armemu.c b/sim/arm/armemu.c
index f0a6103357..6b963c72c6 100644
--- a/sim/arm/armemu.c
+++ b/sim/arm/armemu.c
@@ -1340,7 +1340,6 @@ ARMul_Emulate26 (register ARMul_State * state)
 		    {
 		      ARMword value;
 		      extern int SWI_vector_installed;
-		      int in_thumb_mode;
 
 		      /* Hardware is allowed to optionally override this
 			 instruction and treat it as a breakpoint.  Since
@@ -1378,17 +1377,8 @@ ARMul_Emulate26 (register ARMul_State * state)
 			    }
 			}
 
-		      /* We must signal an abort to mark the next instruction as
-			 invalid and in need of refetching.  This is because if this
-			 the instruction was a breakpoint inserted by the debugger,
-			 the instruction could be changed back to its original value.
-			 The abort however, will automatically reset the processor into
-			 ARM mode, so we have to preserve the mode flag and resort it
-			 after singalling the abort.  */
-		      in_thumb_mode = TFLAG;
-		      ARMul_Abort (state, ARMul_PrefetchAbortV);
-		      ASSIGNT (in_thumb_mode);
-		      
+		      /* Force the next instruction to be refetched.  */
+		      state->NextInstr = RESUME;
 		      break;
 		    }
 		}