* rs6000-aix-tdep.c: Include "regcache.h", "regset.h", and

	"gdb_string.h".
	(rs6000_aix32_reg_offsets, rs6000_aix64_reg_offsets): New variables.
	(rs6000_aix_supply_regset, rs6000_aix_collect_regset): New functions.
	(rs6000_aix32_regset, rs6000_aix64_regset): New variables.
	(rs6000_aix_regset_from_core_section): New function.
	(rs6000_aix_init_osabi): Register it.
	(_initialize_rs6000_aix_tdep): Register GDB_OSABI_AIX osabi and
	sniffer for bfd_arch_powerpc as well as bfd_arch_rs6000.
	* rs6000-nat.c (CoreRegs): Do not define type.
	(fetch_core_registers, rs6000_core_fns): Remove.
	(_initialize_core_rs6000): Do not register it.  Rename to ...
	(_initialize_rs6000_nat): ... this.
	* Makefile.in (rs6000-aix-tdep.o): Update dependencies.

1 files changed, 129 insertions, 0 deletions

diff --git a/gdb/rs6000-aix-tdep.c b/gdb/rs6000-aix-tdep.c
index 6e195a2..ee6b039 100644
--- a/gdb/rs6000-aix-tdep.c
+++ b/gdb/rs6000-aix-tdep.c
@@ -22,10 +22,130 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "defs.h"
+#include "gdb_string.h"
 #include "osabi.h"
+#include "regcache.h"
+#include "regset.h"
 #include "rs6000-tdep.h"
 #include "ppc-tdep.h"
 
+
+/* Core file support.  */
+
+static struct ppc_reg_offsets rs6000_aix32_reg_offsets =
+{
+  /* General-purpose registers.  */
+  208, /* r0_offset */
+  24, /* pc_offset */
+  28, /* ps_offset */
+  32, /* cr_offset */
+  36, /* lr_offset */
+  40, /* ctr_offset */
+  44, /* xer_offset */
+  48, /* mq_offset */
+
+  /* Floating-point registers.  */
+  336, /* f0_offset */
+  56, /* fpscr_offset */
+
+  /* AltiVec registers.  */
+  -1, /* vr0_offset */
+  -1, /* vscr_offset */
+  -1 /* vrsave_offset */
+};
+
+static struct ppc_reg_offsets rs6000_aix64_reg_offsets =
+{
+  /* General-purpose registers.  */
+  0, /* r0_offset */
+  264, /* pc_offset */
+  256, /* ps_offset */
+  288, /* cr_offset */
+  272, /* lr_offset */
+  280, /* ctr_offset */
+  292, /* xer_offset */
+  -1, /* mq_offset */
+
+  /* Floating-point registers.  */
+  312, /* f0_offset */
+  296, /* fpscr_offset */
+
+  /* AltiVec registers.  */
+  -1, /* vr0_offset */
+  -1, /* vscr_offset */
+  -1 /* vrsave_offset */
+};
+
+
+/* Supply register REGNUM in the general-purpose register set REGSET
+   from the buffer specified by GREGS and LEN to register cache
+   REGCACHE.  If REGNUM is -1, do this for all registers in REGSET.  */
+
+static void
+rs6000_aix_supply_regset (const struct regset *regset,
+			  struct regcache *regcache, int regnum,
+			  const void *gregs, size_t len)
+{
+  ppc_supply_gregset (regset, regcache, regnum, gregs, len);
+
+  if (ppc_floating_point_unit_p (get_regcache_arch (regcache)))
+    ppc_supply_fpregset (regset, regcache, regnum, gregs, len);
+}
+
+/* Collect register REGNUM in the general-purpose register set
+   REGSET. from register cache REGCACHE into the buffer specified by
+   GREGS and LEN.  If REGNUM is -1, do this for all registers in
+   REGSET.  */
+
+static void
+rs6000_aix_collect_regset (const struct regset *regset,
+			   const struct regcache *regcache, int regnum,
+			   void *gregs, size_t len)
+{
+  ppc_collect_gregset (regset, regcache, regnum, gregs, len);
+
+  if (ppc_floating_point_unit_p (get_regcache_arch (regcache)))
+    ppc_collect_fpregset (regset, regcache, regnum, gregs, len);
+}
+
+/* AIX register set.  */
+
+static struct regset rs6000_aix32_regset =
+{
+  &rs6000_aix32_reg_offsets,
+  rs6000_aix_supply_regset,
+  rs6000_aix_collect_regset,
+};
+
+static struct regset rs6000_aix64_regset =
+{
+  &rs6000_aix64_reg_offsets,
+  rs6000_aix_supply_regset,
+  rs6000_aix_collect_regset,
+};
+
+/* Return the appropriate register set for the core section identified
+   by SECT_NAME and SECT_SIZE.  */
+
+static const struct regset *
+rs6000_aix_regset_from_core_section (struct gdbarch *gdbarch,
+				     const char *sect_name, size_t sect_size)
+{
+  if (gdbarch_tdep (gdbarch)->wordsize == 4)
+    {
+      if (strcmp (sect_name, ".reg") == 0 && sect_size >= 592)
+        return &rs6000_aix32_regset;
+    }
+  else
+    {
+      if (strcmp (sect_name, ".reg") == 0 && sect_size >= 576)
+        return &rs6000_aix64_regset;
+    }
+
+  return NULL;
+}
+
+
 static enum gdb_osabi
 rs6000_aix_osabi_sniffer (bfd *abfd)
 {
@@ -42,6 +162,10 @@ rs6000_aix_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
   /* RS6000/AIX does not support PT_STEP.  Has to be simulated.  */
   set_gdbarch_software_single_step (gdbarch, rs6000_software_single_step);
 
+  /* Core file support.  */
+  set_gdbarch_regset_from_core_section
+    (gdbarch, rs6000_aix_regset_from_core_section);
+
   /* Minimum possible text address in AIX.  */
   gdbarch_tdep (gdbarch)->text_segment_base = 0x10000000;
 }
@@ -52,8 +176,13 @@ _initialize_rs6000_aix_tdep (void)
   gdbarch_register_osabi_sniffer (bfd_arch_rs6000,
                                   bfd_target_xcoff_flavour,
                                   rs6000_aix_osabi_sniffer);
+  gdbarch_register_osabi_sniffer (bfd_arch_powerpc,
+                                  bfd_target_xcoff_flavour,
+                                  rs6000_aix_osabi_sniffer);
 
   gdbarch_register_osabi (bfd_arch_rs6000, 0, GDB_OSABI_AIX,
                           rs6000_aix_init_osabi);
+  gdbarch_register_osabi (bfd_arch_powerpc, 0, GDB_OSABI_AIX,
+                          rs6000_aix_init_osabi);
 }