Add ms2 support.

	* ms1-tdep.c (ms1_register_type): Check for ms2.
	(ms1_breakpoint_from_pc): ms2 has a different break instruction.
	(ms1_pseudo_register_read, ms1_pseudo_register_write,
	ms1_registers_info): Add ms2.
 	* NEWS (Changes since GDB 6.4): Add ms2

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 01538d0..ae693f4 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,12 @@
+2005-12-08  Nathan Sidwell  <nathan@codesourcery.com>
+
+       Add ms2 support.
+       * ms1-tdep.c (ms1_register_type): Check for ms2.
+       (ms1_breakpoint_from_pc): ms2 has a different break instruction.
+       (ms1_pseudo_register_read, ms1_pseudo_register_write,
+       ms1_registers_info): Add ms2.
+       * NEWS (Changes since GDB 6.4): Add ms2
+
 2005-12-08  Randolph Chung  <tausq@debian.org>
 
        * somread.c (som_symfile_offsets): Iterate through number of sections
@@ -47,7 +56,7 @@
 
        * value.c (init_if_undefined_command): New function.
        (_initialize_values): Add command init-if-undefined.
-       * NEWS (Changes since GDB 6.3): Rename to 'Changes in GDB 6.4'.
+       * NEWS (Changes since GDB 6.3): Rename to 'Changes in GDB 6.4'.
        (Changes since GDB 6.4): New section.
        Mention new command init-if-undefined.
 

diff --git a/gdb/NEWS b/gdb/NEWS
index 719fbe3..411dec9 100644 (file)
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -8,6 +8,10 @@
 init-if-undefined              Initialize a convenience variable, but
                                only if it doesn't already have a value.
 
+* New architecture
+
+Morpho Technologies ms2                ms1-elf
+
 *** Changes in GDB 6.4
 
 * New native configurations

diff --git a/gdb/ms1-tdep.c b/gdb/ms1-tdep.c
index 2ff83c0..f67af76 100644 (file)
--- a/gdb/ms1-tdep.c
+++ b/gdb/ms1-tdep.c
@@ -198,7 +198,8 @@ ms1_register_type (struct gdbarch *arch, int regnum)
        case MS1_COPRO_PSEUDOREG_REGNUM:
          return copro_type;
        case MS1_MAC_PSEUDOREG_REGNUM:
-         if (gdbarch_bfd_arch_info (arch)->mach == bfd_mach_mrisc2)
+         if (gdbarch_bfd_arch_info (arch)->mach == bfd_mach_mrisc2
+             || gdbarch_bfd_arch_info (arch)->mach == bfd_mach_ms2)
            return builtin_type_uint64;
          else
            return builtin_type_uint32;
@@ -362,15 +363,20 @@ ms1_skip_prologue (CORE_ADDR pc)
 /* The breakpoint instruction must be the same size as the smallest
    instruction in the instruction set.
 
-   The BP for ms1 is defined as 0x68000000.  */
+   The BP for ms1 is defined as 0x68000000 (BREAK).
+   The BP for ms2 is defined as 0x69000000 (illegal)  */
 
 static const gdb_byte *
 ms1_breakpoint_from_pc (CORE_ADDR *bp_addr, int *bp_size)
 {
-  static gdb_byte breakpoint[] = { 0x68, 0, 0, 0 };
+  static gdb_byte ms1_breakpoint[] = { 0x68, 0, 0, 0 };
+  static gdb_byte ms2_breakpoint[] = { 0x69, 0, 0, 0 };
 
   *bp_size = 4;
-  return breakpoint;
+  if (gdbarch_bfd_arch_info (current_gdbarch)->mach == bfd_mach_ms2)
+    return ms2_breakpoint;
+  
+  return ms1_breakpoint;
 }
 
 /* Fetch the pseudo registers:
@@ -394,7 +400,8 @@ ms1_pseudo_register_read (struct gdbarch *gdbarch,
       break;
     case MS1_MAC_REGNUM:
     case MS1_MAC_PSEUDOREG_REGNUM:
-      if (gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_mrisc2)
+      if (gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_mrisc2
+         || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_ms2)
        {
          ULONGEST oldmac = 0, ext_mac = 0;
          ULONGEST newmac;
@@ -438,7 +445,8 @@ ms1_pseudo_register_write (struct gdbarch *gdbarch,
       break;
     case MS1_MAC_REGNUM:
     case MS1_MAC_PSEUDOREG_REGNUM:
-      if (gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_mrisc2)
+      if (gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_mrisc2
+         || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_ms2)
        {
          /* The 8-byte MAC pseudo-register must be broken down into two
             32-byte registers.  */
@@ -549,16 +557,14 @@ ms1_registers_info (struct gdbarch *gdbarch,
 
          /* Get the two "real" mac registers.  */
          frame_register_read (frame, MS1_MAC_REGNUM, buf);
-         oldmac = extract_unsigned_integer (buf,
-                                            register_size (gdbarch,
-                                                           MS1_MAC_REGNUM));
+         oldmac = extract_unsigned_integer
+           (buf, register_size (gdbarch, MS1_MAC_REGNUM));
          if (gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_mrisc2
              || gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_ms2)
            {
              frame_register_read (frame, MS1_EXMAC_REGNUM, buf);
-             ext_mac = extract_unsigned_integer (buf,
-                                                 register_size (gdbarch,
-                                                                MS1_EXMAC_REGNUM));
+             ext_mac = extract_unsigned_integer
+               (buf, register_size (gdbarch, MS1_EXMAC_REGNUM));
            }
          else
            ext_mac = 0;