From 88694af3f9e50c9196913fc0246cad42a0ae4d80 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Thu, 1 Feb 2001 00:14:40 +0000
Subject: Detect installation of SWI vector by running program as well as
 loading program.

---
 sim/arm/ChangeLog | 9 +++++++++
 sim/arm/armos.c   | 4 ++--
 sim/arm/armos.h   | 2 ++
 sim/arm/armvirt.c | 5 +++++
 sim/arm/wrapper.c | 5 -----
 5 files changed, 18 insertions(+), 7 deletions(-)

(limited to 'sim')

diff --git a/sim/arm/ChangeLog b/sim/arm/ChangeLog
index 9180bd5..b4ffb90 100644
--- a/sim/arm/ChangeLog
+++ b/sim/arm/ChangeLog
@@ -1,3 +1,12 @@
+2001-01-31  Nick Clifton  <nickc@redhat.com>
+
+	* armvirt.c (PutWord): Detect installation of SWI vector.
+	(SWI_vector_installed): Define.
+	* armos.c (ARMul_OsInit): Reset SWI_vector_installed.
+	* armos.h (SWI_vector_installed): Declare.
+	* wrapper.c (SWI_vector_installed): Remove definition.
+	(sim_write): Remove check of SWI vector	installation
+
 2000-12-18  Nick Clifton  <nickc@redhat.com>
 
 	* armemu.c (ARMul_Emulate26): Fix test for StoreDouble
diff --git a/sim/arm/armos.c b/sim/arm/armos.c
index dd0ce23..789a35d 100644
--- a/sim/arm/armos.c
+++ b/sim/arm/armos.c
@@ -171,6 +171,8 @@ ARMul_OSInit (ARMul_State * state)
   for (i = ARMul_ResetV; i <= ARMFIQV; i += 4)
     ARMul_WriteWord (state, i, instr);	/* write hardware vectors */
   
+  SWI_vector_installed = 0;
+
   for (i = ARMul_ResetV; i <= ARMFIQV + 4; i += 4)
     {
       ARMul_WriteWord (state, ADDRSOFTVECTORS + i, SOFTVECTORCODE + i * 4);
@@ -628,8 +630,6 @@ ARMul_OSHandleSWI (ARMul_State * state, ARMword number)
     default:
       {
 	/* If there is a SWI vector installed use it.  */
-	extern int SWI_vector_installed;
-
 	if (state->is_XScale && saved_number != -1)
 	  number = saved_number;
 	    
diff --git a/sim/arm/armos.h b/sim/arm/armos.h
index 1010b4f..d943735 100644
--- a/sim/arm/armos.h
+++ b/sim/arm/armos.h
@@ -93,3 +93,5 @@
 
 extern unsigned long fpecode[];
 extern unsigned long fpesize;
+
+extern int SWI_vector_installed;
diff --git a/sim/arm/armvirt.c b/sim/arm/armvirt.c
index f9ac453..b9a018b 100644
--- a/sim/arm/armvirt.c
+++ b/sim/arm/armvirt.c
@@ -49,6 +49,8 @@ defined to generate aborts. */
 #define PAGEBITS 16
 #define OFFSETBITS 0xffff
 
+int SWI_vector_installed = FALSE;
+
 /***************************************************************************\
 *        Get a Word from Virtual Memory, maybe allocating the page          *
 \***************************************************************************/
@@ -111,6 +113,9 @@ PutWord (ARMul_State * state, ARMword address, ARMword data)
       *(pagetable + page) = pageptr;
     }
 
+  if (address == 0x8)
+    SWI_vector_installed = TRUE;
+
   *(pageptr + offset) = data;
 }
 
diff --git a/sim/arm/wrapper.c b/sim/arm/wrapper.c
index f6c4b05..f2e5823 100644
--- a/sim/arm/wrapper.c
+++ b/sim/arm/wrapper.c
@@ -114,8 +114,6 @@ ARMul_Debug (ARMul_State * state ATTRIBUTE_UNUSED, ARMword pc ATTRIBUTE_UNUSED,
   return 0;
 }
 
-int SWI_vector_installed = FALSE;
-
 int
 sim_write (sd, addr, buffer, size)
      SIM_DESC sd ATTRIBUTE_UNUSED;
@@ -127,9 +125,6 @@ sim_write (sd, addr, buffer, size)
 
   init ();
 
-  if ((addr <= 0x8) && ((addr + size) >= 0x8))
-    SWI_vector_installed = TRUE;
-
   for (i = 0; i < size; i++)
     ARMul_WriteByte (state, addr + i, buffer[i]);
 
-- 
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