* mn10200-tdep.c (mn10200_analyze_prologue): Look for save of "a1"

        in the prologue too.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f23470e..2a6e9b3 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,8 @@
 Thu Mar 20 20:52:04 1997  Jeffrey A Law  (law@cygnus.com)
 
+       * mn10200-tdep.c (mn10200_analyze_prologue): Look for save of "a1"
+       in the prologue too.
+
        * remote-sim.c (gdb_os_vprintf_filtered): Fix to work with non-ANSI
        compilers.
        (gdb_os_evprintf_filtered): Similarly.

diff --git a/gdb/mn10200-tdep.c b/gdb/mn10200-tdep.c
index 206e553..3090597 100644 (file)
--- a/gdb/mn10200-tdep.c
+++ b/gdb/mn10200-tdep.c
@@ -37,7 +37,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
        mov fp,a0
        mov sp,fp
        add <size>,sp
-       Register saves for d2, d3, a3 as needed.  Saves start
+       Register saves for d2, d3, a1, a2 as needed.  Saves start
        at fp - <size> and work towards higher addresses.  Note
        that the saves are actually done off the stack pointer
        in the prologue!  This makes for smaller code and easier
@@ -46,7 +46,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
      Without frame pointer:
         add <size>,sp
-       Register saves for d2, d3, a3 as needed.  Saves start
+       Register saves for d2, d3, a1, a2 as needed.  Saves start
        at sp and work towards higher addresses.
 
 
@@ -325,6 +325,7 @@ mn10200_analyze_prologue (fi, pc)
        
      Search for movx d2,(X,a3) (0xf55eXX)
         then   movx d3,(X,a3) (0xf55fXX)
+        then   mov  a1,(X,a3) (0x5dXX)    No frame pointer case
         then   mov  a2,(X,a3) (0x5eXX)    No frame pointer case
         or  mov  a0,(X,a3) (0x5cXX)       Frame pointer case.  */
 
@@ -365,6 +366,23 @@ mn10200_analyze_prologue (fi, pc)
       if (status != 0)
        return addr;
     }
+  if (buf[0] == 0x5d)
+    {
+      if (fi)
+       {
+         status = target_read_memory (addr + 1, buf, 1);
+         if (status != 0)
+           return addr;
+         fi->fsr.regs[5] = (fi->frame + stack_size
+                            + extract_signed_integer (buf, 1));
+       }
+      addr += 2;
+      if (addr >= stop)
+       return addr;
+      status = target_read_memory (addr, buf, 2);
+      if (status != 0)
+       return addr;
+    }
   if (buf[0] == 0x5e || buf[0] == 0x5c)
     {
       if (fi)