* Makefile.in (ALLDEPFILES): Remove sparc-linux-nat.c and

sparcl-tdep.c.  Add sparc-linux-tdep.c, sparc-sol2-nat.c,
sparc-sol2-tdep.c, sparc-sol2-nat.c, sparc-sol2-tdep.c,
sparc64-linux-nat.c, sparc64-linux-tdep.c, sparc64-nat.c,
sparc64-sol2-tdep.c, sparc64-tdep.c, sparc64fbsd-nat.c,
sparc64fbsd-tdep.c, sparcnbsd-nat.c, sparcnbsd-tdep.c.
(sparc_nat_h): New variable.
(sparcbsd_nat_h, sparcnbsd_tdep_h): Remove variables.
(tm-sun4os4.h): Remove dependency.
(sparcbsd-nat.o, sparc-linux-nat.o): Remove dependencies.
(sparc64fbsd-nat.o, sparc64fbsd-tdep.o, sparc64nbsd-nat.o,
sparc64-tdep.o, sparc-nat.o, sparcnbsd-nat.o, sparcnbsd-tdep.o,
sparc-tdep.o): Update dependencies.
(sparc-linux-tdep.o, sparc-sol2-nat.o, sparc-sol2-tdep.o,
sparc64-linux-nat.o, sparc64-linux-tdep.o, sparc64-nat.o,
sparc64-sol2-tdep.o, sparc64-tdep.o, sparc64nbsd-tdep.o): New
dependencies.
* configure.host: Remove existing sparc-*-lynxos*,
sparc-*-solaris*, sparc-*-sunos4*, sparc-*-sunos5*, sparc-*-*,
ultrasparc-*-freebsd, sparcv9-*-freebsd, sparc64-*-linux*,
sparcv9-*-* and sparc64-*-* triplets.  Add new sparc64-*-linux*,
sparc-*-solaris2*, sparcv9-*-solaris2* and sparc64-*-solaris2*
triplets.
* configure.tgt: Remove exitsing sparc-*-aout*, sparc-*-coff*,
sparc-*-elf*, sparc*-lynxos*, sparc-*-solars2*, sparc-*-sunos4*,
sparc-*-sunos5*, sparc-*-vxworks*, sparc64-*linux*, sparc64-*-*,
sparcv9-*-* and commented out sparc64-*-solars2* triplets.  Add
new sparc-*-solaris2.[0-6], sparc-*-solaris2.[0-6].*,
sparc64-*-linux, sparc-*-solaris2*, sparcv9-*-solaris*,
sparc64-*-solaris2* and sparc64-*-* triplets.
* sparc64-tdep.c: Update copyright year.  Include "inferior.h",
"symtab.h" and "objfiles.h".
(BIAS): Remove define.
(X_OP, X_RD, X_A, X_COND, X_OP2, X_IMM22, X_OP3, X_I, X_DISP22)
(X_DISP19): Remove macros.
(sparc_fetch_instruction): Remove function.
(struct gdbarch_tdep): Remove definition.
(SPARC64_NUM_REGS, SPARC64_NUM_PSEUDO_REGS): Use ARRAY_SIZE.
(sparc_breakpoint_from_pc): Remove function.
(struct sparc64_frame_cache): Remove definition.
(sparc64_alloc_frame_cache, sparc64_analyze_prologue,
sparc64_unwind_pc): Remove functions.
(sparc64_skip_prologue): Use `struct sparc_frame_cache' instead of
`struct sparc64_frame_cache.  Call sparc_analyze_prologue instead
of sparc64_analyze_prologue.  Mark constant as ULL instead of UL.
(sparc64_frame_cache): Change return type to `struct
sparc_frame_cache *'.  Simply call sparc_frame_cache.
(sparc64_frame_this_id, sparc64_frame_prev_register,
sparc64_frame_base_address): Use `struct sparc_frame_cache'
instead of `struct sparc64_frame_cache.
(sparc_unwind_dummy_id, sparc_extract_struct_value_address,
sparc_analyze_control_transfer, sparc_software_single_step,
sparc64_gdbarch_init, sparc_supply_rwindow, sparc_fill_rwindow,
_initialize_sparc64_tdep): Remove functions.
(TSTATE_CWP, TSTATE_ICC, TSTATE_XCC): New macros.
(PSR_S, PSR_ICC, PSR_VERS, PSR_IMPL, PSR_V8PLUS, PSR_XCC): New
macros.
(sparc64_supply_gregset, sparc64_collect_gregset,
sparc64_supply_fpregset, sparc64_collect_fpregset): New functions.
(sparc64_init_abi): New function.
* sparc64-tdep.h: Update copyright year.  Fix typo in multiple
inclusion guard.  Include "sparc-tdep.h".
(BIAS): Define.
(r_tstate_offset, r_fprs_offset): New defines.
(enum sparc_regnum): Remove defenition.
(enum sparc64_regnum): Reformat.
(sparc_supply_rwindow, sparc_fill_rwindow): Remove prototypes.
(sparc64_init_abi, sparc64_supply_gregset,
sparc64_collect_gregset, sparc64_supply_fpregset,
sparc64_collect_fpregset): New prototypes.
(sparc64_sol2_gregset, sparc64nbsd_gregset, sparc64fbsd_gregset):
Add extern declarations.
(sparc64_sol2_init_abi): New prototype.
(sparc64fbsd_supply_reg, sparc64fbsd_fill_reg)
(sparc64fbsd_supply_fpreg, sparc64fbsd_fill_fpreg): Remove
prototypes.
* sparc64fbsd-nat.c: Include "sparc-nat.h", don't include
"sparnbsd-nat.h".
(sparc64fbsd_reg_supplies_p, sparc64fbsd_fpreg_supplies_p): Remove
functions.
(_initialize_sparc64fbsd_nat): Remove initialization of
sparcbsd_supply_reg, sparcbsd_fill_reg, sparcbsd_supply_fpreg,
sparcbsd_fill_fpreg, sparcbsd_reg_supplies_p,
sparcbsd_fpreg_supplies_p.  Initialize sparc_gregset.
* sparc64fbsd-tdep.c: Update copyright year.  Include "frame.h",
"frame-unwind.h", "trad-frame.h" and "gdb_assert.h".
(sparc64fbsd_r_global_offset, sparc64fbsd_r_out_offset)
(sparc64fbsd_r_fprs_offset, sparc64fbsd_r_tnpc_offset)
(sparc64fbsd_r_tpc_offset, sparc64fbsd_r_tstate_offset)
(sparc64fbsd_r_y_offset): Remove variables.
(sparc64fbsd_sizeof_struct_reg, sparc64fbsd_sizeof_struct_fpreg):
Make static and const.
(sparc64fbsd_supply_reg, sparc64fbsd_fill_reg)
(sparc64fbsd_supply_fpreg, sparc64fbsd_fill_fpreg): Remove
functions.
(sparc64fbsd_gregset): New variable.
(fetch_core_registers): Replace calls to sparc64fbsd_supply_reg
and sparc64fbsd_supply_fpreg with calls to sparc64_supply_gregset
and sparc64_supply_fpregset.
(sparc64fbsd_pc_in_sigtramp, sparc64fbsd_sigtramp_frame_cache)
(sparc64fbsd_sigtramp_frame_this_id)
(sparc64fbsd_sigtramp_frame_prev_register): New functions.
(sparc64fbsd_sigtramp_frame_unwind): New variable.
(sparc64fbsd_sigtramp_frame_sniffer): New function.
(sparc64fbsd_init_abi): Set pc_in_sigtramp, append
sparc64fbsd_sigtramp_frame_sniffer.  Call sparc64_init_abi.
* sparcnbsd-tdep.c: Update copyright year.  Include
"floatformat.h", "frame.h", "frame-unwind.h", "symtab.h",
"trad-frame.h" and "gdb_assert.h", don't include "target.h",
"value.h" and "sparcnbsd-tdep.h".
(REG32_OFFSET_PSR, REG32_OFFSET_PC, REG32_OFFSET_NPC)
(REG32_OFFSET_Y, REG32_OFFSET_GLOBAL, REG32_OFFSET_OUT)
(REG64_OFFSET_TSTATE, REG64_OFFSET_PC, REG64_OFFSET_NPC)
(REG64_OFFSET_Y, REG64_OFFSET_GLOBAL, REG64_OFFSET_OUT): Remove
defines.
(sparcnbsd_gregset): New variable.
(sparcnbsd_supply_reg32, sparcnbsd_supply_reg64)
(sparcnbsd_fill_reg32, sparcnbsd_fill_reg64)
(sparcnbsd_supply_fpreg32, sparcnbsd_supply_fpreg64)
(sparcnbsd_fill_reg32, sparcnbsd_fill_reg64): Remove functions.
(sparc32nbsd_sigtramp_start, sparc32nbsd_sigtramp_end): New
variables.
(sparc32nbsd_pc_in_sigtramp, sparc32nbsd_sigcontext_frame_cache)
(sparc32nbsd_sigcontext_frame_this_id)
(sparc32nbsd_sigcontext_frame_prev_register): New functions.
(sparc32nbsd_sigcontext_frame_unwind): New variable.
(sparc32nbsd_sigtramp_frame_sniffer): New function.
(sparcnbsd_get_longjmp_target_32,
sparcnbsd_get_longjmp_target_64): Remove functions.
(sparcnbsd_aout_in_solib_call_trampoline): Rewrite.
(sparcnbsd_init_abi_common, sparcnbsd_init_aout,
sparcnbsd_init_elf): Remove.
(sparcnbsd_init_abi, sparcnbsd_aout_init_abi)
(sparcnbsd_elf_init_abi): New functions.
(_initialize_sparcnbsd_tdep): New prototype.
(_initialize_sparnbsd_tdep): Update.
* config/sparc/fbsd.mh (NATDEPFILES): Remove sparcbsd-nat.o and
corelow.o.  Add sparc64-nat.o and sparc-nat.o.
* config/sparc/fbsd.mt (TDEPFILES): Add sparc-tdep.o and corelow.o.
* config/sparc/linux.mh: Update comment.
(XM_FILE, HOST_IPC): Remove variables.
(NATDEPFILES): Add sparc-sol2-nat.o and core-regset.o.  Remove
sparc-linux-nat.o.
* config/sparc/linux.mt: Update comment.
(TDEPFILES): Add sparc-sol2-tdep.o and sparc-linux-tdep.o.
* config/sparc/nbsd.mt: Reformat.
* config/sparc/nbsd64.mh: Update comment.
(NATDEPFILES): Add sparc-nat.o.
* config/sparc/nbsd64.mt: Update comment.
(TDEPFILES): Add sparc64-tdep.o and sparc64nbsd-tdep.o.
(TM_FILE): Set to tm-nbsd.h.
* config/sparc/nbsdelf.mh: Update comment.
(NATDEPFILES): Add sparc-nat.o.
(XM_FILE): Delete.
* config/sparc/nbsdaout.mh: Update comment.
(NATDEPFILES): Add sparc-nat.o
(XM_FILE): Delete.
* config/sparc/nm-linux.h: Update copyright year.  Don't include
"config/nm-svr4.h" and "solib.h".  Add protection against multiple
inclusion.
(KERNEL_U_SIZE): Remove define.
(kernel_u_size): Remove prototype.
(PTRACE_ARG3_TYPE, PTRACE_XFER_TYPE): Define.
* config/sparc/nm-nbsd.h: Update copyright.  Don't include
"regcache.h".
(CHILD_PREPARE_TO_STORE): Remove define.
* config/sparc/nm-nbsdaout.h: Tweak some comments.
* sparc-nat.c, sparc-tdep.c, sparc-tdep.h, sparc64nbsd-nat.c,
sparcnbsd-nat.c: Rewrite files.
* config/sparc/tm-linux.h, config/sparc/tm-nbsd.h: Rewrite files.
* sparc-linux-nat.c, sparcbsd-nat.c, sparcbsd-nat.h,
sparcnbsd-tdep.h: Remove files.
* config/sparc/nm-sparclynx.h, config/sparc/nm-sun4os4.h,
config/sparc/nm-sun4sol2.h, config/sparc/sp64.mt,
config/sparc/sp64linux.mt, config/sparc/sp64sol2.mt,
config/sparc/sparc-em.mt, config/sparc/sparclynx.mh,
config/sparc/sparclynx.mt, config/sparc/sun4os4.mh,
config/sparc/sun4os4.mt, config/sparc/sun4sol2.mh,
config/sparc/sun4sol2.mt, config/sparc/tm-sp64.h,
config/sparc/tm-sp64linux.h, config/sparc/tm-sparc.h,
config/sparc/tm-sparclynx.h, config/sparc/tm-spc-em.h,
config/sparc/tm-sun4os4.h, config/sparc/tm-sun4sol2.h,
config/sparc/tm-vxsparc.h, config/sparc/vxsparc.mt,
config/sparc/xm-linux.h, config/sparc/xm-sun4sol2.h: Remove files.
* sparc-linux-tdep.c, sparc-nat.h, sparc-sol2-nat.c,
sparc-sol2-tdep.c, sparc64-linux-nat.c, sparc64-linux-t dep.c,
sparc64-nat.c, sparc64-sol2-tdep.c, sparc64nbsd-tdep.c: New files.
* config/sparc/linux64.mh, config/sparc/linux64.mt,
config/sparc/nm-sol2.h, config/sparc/sol2-64.mt,
config/sparc/sol2.mh, config/sparc/sol2.mt, config/sparc/sparc.mt,
config/sparc/sparc64.mt, config/sparc/tm-sol2.h: New files.

1 files changed, 281 insertions, 381 deletions

diff --git a/gdb/sparc64-tdep.c b/gdb/sparc64-tdep.c
index b605a1d..ced47a4 100644
--- a/gdb/sparc64-tdep.c
+++ b/gdb/sparc64-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for UltraSPARC.
 
-   Copyright 2003 Free Software Foundation, Inc.
+   Copyright 2003, 2004 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -27,6 +27,9 @@
 #include "frame-unwind.h"
 #include "gdbcore.h"
 #include "gdbtypes.h"
+#include "inferior.h"
+#include "symtab.h"
+#include "objfiles.h"
 #include "osabi.h"
 #include "regcache.h"
 #include "target.h"
@@ -45,41 +48,6 @@
 /* Please use the sparc32_-prefix for 32-bit specific code, the
    sparc64_-prefix for 64-bit specific code and the sparc_-prefix for
    code can handle both.  */
-
-/* The stack pointer is offset from the stack frame by a BIAS of 2047
-   (0x7ff) for 64-bit code.  BIAS is likely to be defined on SPARC
-   hosts, so undefine it first.  */
-#undef BIAS
-#define BIAS 2047
-
-/* Macros to extract fields from SPARC instructions.  */
-#define X_OP(i) (((i) >> 30) & 0x3)
-#define X_A(i) (((i) >> 29) & 1)
-#define X_COND(i) (((i) >> 25) & 0xf)
-#define X_OP2(i) (((i) >> 22) & 0x7)
-#define X_IMM22(i) ((i) & 0x3fffff)
-#define X_OP3(i) (((i) >> 19) & 0x3f)
-/* Sign extension macros.  */
-#define X_DISP22(i) ((X_IMM22 (i) ^ 0x200000) - 0x200000)
-#define X_DISP19(i) ((((i) & 0x7ffff) ^ 0x40000) - 0x40000)
-
-/* Fetch the instruction at PC.  Instructions are always big-endian
-   even if the processor operates in little-endian mode.  */
-
-static unsigned long
-sparc_fetch_instruction (CORE_ADDR pc)
-{
-  unsigned char buf[4];
-  unsigned long insn;
-  int i;
-
-  read_memory (pc, buf, sizeof (buf));
-
-  insn = 0;
-  for (i = 0; i < sizeof (buf); i++)
-    insn = (insn << 8) | buf[i];
-  return insn;
-}
 
 /* The functions on this page are intended to be used to classify
    function arguments.  */
@@ -163,14 +131,6 @@ sparc64_structure_or_union_p (const struct type *type)
   return 0;
 }
 
-/* UltraSPARC architecture specific information.  */
-
-struct gdbarch_tdep
-{
-  /* Offset of saved PC in jmp_buf.  */
-  int jb_pc_offset;
-};
-
 /* Register information.  */
 
 struct sparc64_register_info
@@ -283,8 +243,7 @@ static struct sparc64_register_info sparc64_register_info[] =
 };
 
 /* Total number of registers.  */
-#define SPARC64_NUM_REGS \
-  (sizeof (sparc64_register_info) / sizeof (sparc64_register_info[0]))
+#define SPARC64_NUM_REGS ARRAY_SIZE (sparc64_register_info)
 
 /* We provide the aliases %d0..%d62 and %q0..%q60 for the floating
    registers as "psuedo" registers.  */
@@ -348,9 +307,7 @@ static struct sparc64_register_info sparc64_pseudo_register_info[] =
 };
 
 /* Total number of pseudo registers.  */
-#define SPARC64_NUM_PSEUDO_REGS \
-  (sizeof (sparc64_pseudo_register_info) \
-   / sizeof (sparc64_pseudo_register_info[0]))
+#define SPARC64_NUM_PSEUDO_REGS ARRAY_SIZE (sparc64_pseudo_register_info)
 
 /* Return the name of register REGNUM.  */
 
@@ -499,79 +456,8 @@ sparc64_pseudo_register_write (struct gdbarch *gdbarch,
       regcache_raw_write_unsigned (regcache, SPARC64_STATE_REGNUM, state);
     }
 }
-
-/* Use the program counter to determine the contents and size of a
-   breakpoint instruction.  Return a pointer to a string of bytes that
-   encode a breakpoint instruction, store the length of the string in
-   *LEN and optionally adjust *PC to point to the correct memory
-   location for inserting the breakpoint.  */
-   
-static const unsigned char *
-sparc_breakpoint_from_pc (CORE_ADDR *pc, int *len)
-{
-  static unsigned char break_insn[] = { 0x91, 0xd0, 0x20, 0x01 };
-
-  *len = sizeof (break_insn);
-  return break_insn;
-}
 
 
-struct sparc64_frame_cache
-{
-  /* Base address.  */
-  CORE_ADDR base;
-  CORE_ADDR pc;
-
-  /* Do we have a frame?  */
-  int frameless_p;
-};
-
-/* Allocate and initialize a frame cache.  */
-
-static struct sparc64_frame_cache *
-sparc64_alloc_frame_cache (void)
-{
-  struct sparc64_frame_cache *cache;
-  int i;
-
-  cache = FRAME_OBSTACK_ZALLOC (struct sparc64_frame_cache);
-
-  /* Base address.  */
-  cache->base = 0;
-  cache->pc = 0;
-
-  /* Frameless until proven otherwise.  */
-  cache->frameless_p = 1;
-
-  return cache;
-}
-
-static CORE_ADDR
-sparc64_analyze_prologue (CORE_ADDR pc, CORE_ADDR current_pc,
-			  struct sparc64_frame_cache *cache)
-{
-  unsigned long insn;
-
-  if (current_pc <= pc)
-    return current_pc;
-
-  /* Check whether the function starts with a SAVE instruction.  */
-  insn = sparc_fetch_instruction (pc);
-  if (X_OP (insn) == 2 && X_OP3 (insn) == 0x3c)
-    {
-      cache->frameless_p = 0;
-      return pc + 4;
-    }
-
-  return pc;
-}
-
-static CORE_ADDR
-sparc64_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, SPARC64_PC_REGNUM);
-}
-
 /* Return PC of first real instruction of the function starting at
    START_PC.  */
 
@@ -580,7 +466,7 @@ sparc64_skip_prologue (CORE_ADDR start_pc)
 {
   struct symtab_and_line sal;
   CORE_ADDR func_start, func_end;
-  struct sparc64_frame_cache cache;
+  struct sparc_frame_cache cache;
 
   /* This is the preferred method, find the end of the prologue by
      using the debugging information.  */
@@ -593,50 +479,22 @@ sparc64_skip_prologue (CORE_ADDR start_pc)
 	return sal.end;
     }
 
-  return sparc64_analyze_prologue (start_pc, 0xffffffffffffffffUL, &cache);
+  return sparc_analyze_prologue (start_pc, 0xffffffffffffffffULL, &cache);
 }
 
 /* Normal frames.  */
 
-static struct sparc64_frame_cache *
+static struct sparc_frame_cache *
 sparc64_frame_cache (struct frame_info *next_frame, void **this_cache)
 {
-  struct sparc64_frame_cache *cache;
-
-  if (*this_cache)
-    return *this_cache;
-
-  cache = sparc64_alloc_frame_cache ();
-  *this_cache = cache;
-
-  /* In priciple, for normal frames, %fp (%i6) holds the frame
-     pointer, which holds the base address for the current stack
-     frame.  */
-
-  cache->base = frame_unwind_register_unsigned (next_frame, SPARC_FP_REGNUM);
-  if (cache->base == 0)
-    return cache;
-
-  cache->pc = frame_func_unwind (next_frame);
-  if (cache->pc != 0)
-    sparc64_analyze_prologue (cache->pc, frame_pc_unwind (next_frame), cache);
-
-  if (cache->frameless_p)
-    {
-      /* We didn't find a valid frame, which means that CACHE->base
-	 currently holds the frame pointer for our calling frame.  */
-      cache->base = frame_unwind_register_unsigned (next_frame,
-						    SPARC_SP_REGNUM);
-    }
-
-  return cache;
+  return sparc_frame_cache (next_frame, this_cache);
 }
 
 static void
 sparc64_frame_this_id (struct frame_info *next_frame, void **this_cache,
 		       struct frame_id *this_id)
 {
-  struct sparc64_frame_cache *cache =
+  struct sparc_frame_cache *cache =
     sparc64_frame_cache (next_frame, this_cache);
 
   /* This marks the outermost frame.  */
@@ -652,7 +510,7 @@ sparc64_frame_prev_register (struct frame_info *next_frame, void **this_cache,
 			     enum lval_type *lvalp, CORE_ADDR *addrp,
 			     int *realnump, void *valuep)
 {
-  struct sparc64_frame_cache *cache =
+  struct sparc_frame_cache *cache =
     sparc64_frame_cache (next_frame, this_cache);
 
   if (regnum == SPARC64_PC_REGNUM || regnum == SPARC64_NPC_REGNUM)
@@ -718,7 +576,7 @@ sparc64_frame_sniffer (struct frame_info *next_frame)
 static CORE_ADDR
 sparc64_frame_base_address (struct frame_info *next_frame, void **this_cache)
 {
-  struct sparc64_frame_cache *cache =
+  struct sparc_frame_cache *cache =
     sparc64_frame_cache (next_frame, this_cache);
 
   /* ??? Should we take BIAS into account here?  */
@@ -732,15 +590,6 @@ static const struct frame_base sparc64_frame_base =
   sparc64_frame_base_address,
   sparc64_frame_base_address
 };
-
-static struct frame_id
-sparc_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  CORE_ADDR sp;
-
-  sp = frame_unwind_register_unsigned (next_frame, SPARC_SP_REGNUM);
-  return frame_id_build (sp, frame_pc_unwind (next_frame));
-}
 
 /* Check whether TYPE must be 16-byte aligned.  */
 
@@ -1193,19 +1042,6 @@ sparc64_store_return_value (struct type *type, struct regcache *regcache,
     }
 }
 
-/* Extract from REGCACHE, which contains the (raw) register state, the
-   address in which a function should return its structure value, as a
-   CORE_ADDR.  */
-
-static CORE_ADDR
-sparc_extract_struct_value_address (struct regcache *regcache)
-{
-  ULONGEST addr;
-
-  regcache_cooked_read_unsigned (regcache, SPARC_O0_REGNUM, &addr);
-  return addr;
-}
-
 static int
 sparc64_use_struct_convention (int gcc_p, struct type *type)
 {
@@ -1213,138 +1049,20 @@ sparc64_use_struct_convention (int gcc_p, struct type *type)
      registers.  */
   return (TYPE_LENGTH (type) > 32);
 }
-
 
-/* The SPARC Architecture doesn't have hardware single-step support,
-   and most operating systems don't implement it either, so we provide
-   software single-step mechanism.  */
-
-static CORE_ADDR
-sparc_analyze_control_transfer (CORE_ADDR pc, CORE_ADDR *npc)
-{
-  unsigned long insn = sparc_fetch_instruction (pc);
-  int conditional_p = X_COND (insn) & 0x7;
-  int branch_p = 0;
-  long offset = 0;			/* Must be signed for sign-extend.  */
-
-  if (X_OP (insn) == 0 && X_OP2 (insn) == 3 && (insn & 0x1000000) == 0)
-    {
-      /* Branch on Integer Register with Prediction (BPr).  */
-      branch_p = 1;
-      conditional_p = 1;
-    }
-  else if (X_OP (insn) == 0 && X_OP2 (insn) == 6)
-    {
-      /* Branch on Floating-Point Condition Codes (FBfcc).  */
-      branch_p = 1;
-      offset = 4 * X_DISP22 (insn);
-    }
-  else if (X_OP (insn) == 0 && X_OP2 (insn) == 5)
-    {
-      /* Branch on Floating-Point Condition Codes with Prediction
-         (FBPfcc).  */
-      branch_p = 1;
-      offset = 4 * X_DISP19 (insn);
-    }
-  else if (X_OP (insn) == 0 && X_OP2 (insn) == 2)
-    {
-      /* Branch on Integer Condition Codes (Bicc).  */
-      branch_p = 1;
-      offset = 4 * X_DISP22 (insn);
-    }
-  else if (X_OP (insn) == 0 && X_OP2 (insn) == 1)
-    {
-      /* Branch on Integer Condition Codes with Prediction (BPcc).  */
-      branch_p = 1;
-      offset = 4 * X_DISP19 (insn);
-    }
-
-  /* FIXME: Handle DONE and RETRY instructions.  */
-
-  /* FIXME: Handle the Trap instruction.  */
-
-  if (branch_p)
-    {
-      if (conditional_p)
-	{
-	  /* For conditional branches, return nPC + 4 iff the annul
-	     bit is 1.  */
-	  return (X_A (insn) ? *npc + 4 : 0);
-	}
-      else
-	{
-	  /* For unconditional branches, return the target if its
-	     specified condition is "always" and return nPC + 4 if the
-	     condition is "never".  If the annul bit is 1, set *NPC to
-	     zero.  */
-	  if (X_COND (insn) == 0x0)
-	    pc = *npc, offset = 4;
-	  if (X_A (insn))
-	    *npc = 0;
-
-	  gdb_assert (offset != 0);
-	  return pc + offset;
-	}
-    }
-
-  return 0;
-}
 
 void
-sparc_software_single_step (enum target_signal sig, int insert_breakpoints_p)
-{
-  static CORE_ADDR npc, nnpc;
-  static char npc_save[4], nnpc_save[4];
-
-  if (insert_breakpoints_p)
-    {
-      CORE_ADDR pc;
-
-      pc = sparc_address_from_register (SPARC64_PC_REGNUM);
-      npc = sparc_address_from_register (SPARC64_NPC_REGNUM);
-
-      /* Analyze the instruction at PC.  */
-      nnpc = sparc_analyze_control_transfer (pc, &npc);
-      if (npc != 0)
-	target_insert_breakpoint (npc, npc_save);
-      if (nnpc != 0)
-	target_insert_breakpoint (nnpc, nnpc_save);
-
-      /* Assert that we have set at least one breakpoint.  */
-      gdb_assert (npc != 0 || nnpc != 0);
-    }
-  else
-    {
-      if (npc != 0)
-	target_remove_breakpoint (npc, npc_save);
-      if (nnpc != 0)
-	target_remove_breakpoint (nnpc, nnpc_save);
-
-      npc = 0;
-      nnpc = 0;
-    }
-}
-
-
-static struct gdbarch *
-sparc64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+sparc64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
-  struct gdbarch_tdep *tdep;
-  struct gdbarch *gdbarch;
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
-  /* If there is already a candidate, use it.  */
-  arches = gdbarch_list_lookup_by_info (arches, &info);
-  if (arches != NULL)
-    return arches->gdbarch;
-
-  /* Allocate space for the new architecture.  */
-  tdep = XMALLOC (struct gdbarch_tdep);
-  gdbarch = gdbarch_alloc (&info, tdep);
+  tdep->pc_regnum = SPARC64_PC_REGNUM;
+  tdep->npc_regnum = SPARC64_NPC_REGNUM;
 
+  /* This is what all the fuss is about.  */
   set_gdbarch_long_bit (gdbarch, 64);
   set_gdbarch_long_long_bit (gdbarch, 64);
   set_gdbarch_ptr_bit (gdbarch, 64);
-  set_gdbarch_long_double_bit (gdbarch, 128);
 
   set_gdbarch_num_regs (gdbarch, SPARC64_NUM_REGS);
   set_gdbarch_register_name (gdbarch, sparc64_register_name);
@@ -1354,147 +1072,329 @@ sparc64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_pseudo_register_write (gdbarch, sparc64_pseudo_register_write);
 
   /* Register numbers of various important registers.  */
-  set_gdbarch_sp_regnum (gdbarch, SPARC_SP_REGNUM); /* %sp */
   set_gdbarch_pc_regnum (gdbarch, SPARC64_PC_REGNUM); /* %pc */
-  set_gdbarch_deprecated_npc_regnum (gdbarch, SPARC64_NPC_REGNUM);
-  set_gdbarch_fp0_regnum (gdbarch, SPARC_F0_REGNUM); /* %f0 */
 
   /* Call dummy code.  */
+  set_gdbarch_call_dummy_location (gdbarch, AT_ENTRY_POINT);
+  set_gdbarch_push_dummy_code (gdbarch, NULL);
   set_gdbarch_push_dummy_call (gdbarch, sparc64_push_dummy_call);
 
   set_gdbarch_extract_return_value (gdbarch, sparc64_extract_return_value);
   set_gdbarch_store_return_value (gdbarch, sparc64_store_return_value);
-  set_gdbarch_extract_struct_value_address
-    (gdbarch, sparc_extract_struct_value_address);
   set_gdbarch_use_struct_convention (gdbarch, sparc64_use_struct_convention);
+  set_gdbarch_return_value_on_stack
+    (gdbarch, generic_return_value_on_stack_not);
+  set_gdbarch_stabs_argument_has_addr
+    (gdbarch, default_stabs_argument_has_addr);
 
   set_gdbarch_skip_prologue (gdbarch, sparc64_skip_prologue);
 
-  /* Stack grows downward.  */
-  set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-
-  set_gdbarch_breakpoint_from_pc (gdbarch, sparc_breakpoint_from_pc);
-  set_gdbarch_decr_pc_after_break (gdbarch, 0);
-  set_gdbarch_function_start_offset (gdbarch, 0);
-
-  set_gdbarch_frame_args_skip (gdbarch, 8);
-
-  set_gdbarch_print_insn (gdbarch, print_insn_sparc);
-
-  set_gdbarch_software_single_step (gdbarch, sparc_software_single_step);
-
-  set_gdbarch_unwind_dummy_id (gdbarch, sparc_unwind_dummy_id);
-
-  set_gdbarch_unwind_pc (gdbarch, sparc64_unwind_pc);
-
+  frame_unwind_append_sniffer (gdbarch, sparc64_frame_sniffer);
   frame_base_set_default (gdbarch, &sparc64_frame_base);
+}
+
 
-  /* Hook in ABI-specific overrides, if they have been registered.  */
-  gdbarch_init_osabi (info, gdbarch);
+/* Helper functions for dealing with register sets.  */
 
-  frame_unwind_append_sniffer (gdbarch, sparc64_frame_sniffer);
+#define TSTATE_CWP	0x000000000000001fULL
+#define TSTATE_ICC	0x0000000f00000000ULL
+#define TSTATE_XCC	0x000000f000000000ULL
 
-  return gdbarch;
-}
-
-/* Helper functions for dealing with register windows.  */
+#define PSR_S		0x00000080
+#define PSR_ICC		0x00f00000
+#define PSR_VERS	0x0f000000
+#define PSR_IMPL	0xf0000000
+#define PSR_V8PLUS	0xff000000
+#define PSR_XCC		0x000f0000
 
 void
-sparc_supply_rwindow (CORE_ADDR sp, int regnum)
+sparc64_supply_gregset (const struct sparc_gregset *gregset,
+			struct regcache *regcache,
+			int regnum, const void *gregs)
 {
-  int offset = 0;
-  char buf[8];
+  int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+  const char *regs = gregs;
   int i;
 
-  if (sp & 1)
+  if (sparc32)
     {
-      /* Registers are 64-bit.  */
-      sp += BIAS;
+      if (regnum == SPARC32_PSR_REGNUM || regnum == -1)
+	{
+	  int offset = gregset->r_tstate_offset;
+	  ULONGEST tstate, psr;
+	  char buf[4];
+
+	  tstate = extract_unsigned_integer (regs + offset, 8);
+	  psr = ((tstate & TSTATE_CWP) | PSR_S | ((tstate & TSTATE_ICC) >> 12)
+		 | ((tstate & TSTATE_XCC) >> 20) | PSR_V8PLUS);
+	  store_unsigned_integer (buf, 4, psr);
+	  regcache_raw_supply (regcache, SPARC32_PSR_REGNUM, buf);
+	}
+
+      if (regnum == SPARC32_PC_REGNUM || regnum == -1)
+	regcache_raw_supply (regcache, SPARC32_PC_REGNUM,
+			     regs + gregset->r_pc_offset + 4);
+
+      if (regnum == SPARC32_NPC_REGNUM || regnum == -1)
+	regcache_raw_supply (regcache, SPARC32_NPC_REGNUM,
+			     regs + gregset->r_npc_offset + 4);
 
-      for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++)
+      if (regnum == SPARC32_Y_REGNUM || regnum == -1)
 	{
-	  if (regnum == i || regnum == -1)
-	    {
-	      target_read_memory (sp + ((i - SPARC_L0_REGNUM) * 8), buf, 8);
-	      supply_register (i, buf);
-	    }
+	  int offset = gregset->r_y_offset + 8 - gregset->r_y_size;
+	  regcache_raw_supply (regcache, SPARC32_Y_REGNUM, regs + offset);
 	}
     }
   else
     {
-      /* Registers are 32-bit.  Toss any sign-extension of the stack
-	 pointer.  */
-      sp &= 0xffffffffUL;
+      if (regnum == SPARC64_STATE_REGNUM || regnum == -1)
+	regcache_raw_supply (regcache, SPARC64_STATE_REGNUM,
+			     regs + gregset->r_tstate_offset);
 
-      /* Clear out the top half of the temporary buffer, and put the
-	 register value in the bottom half if we're in 64-bit mode.  */
-      if (gdbarch_ptr_bit (current_gdbarch) == 64)
+      if (regnum == SPARC64_PC_REGNUM || regnum == -1)
+	regcache_raw_supply (regcache, SPARC64_PC_REGNUM,
+			     regs + gregset->r_pc_offset);
+
+      if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
+	regcache_raw_supply (regcache, SPARC64_NPC_REGNUM,
+			     regs + gregset->r_npc_offset);
+
+      if (regnum == SPARC64_Y_REGNUM || regnum == -1)
 	{
-	  memset (buf, 0, 4);
-	  offset = 4;
+	  char buf[8];
+
+	  memset (buf, 0, 8);
+	  memcpy (buf + 8 - gregset->r_y_size,
+		  regs + gregset->r_y_offset, gregset->r_y_size);
+	  regcache_raw_supply (regcache, SPARC64_Y_REGNUM, buf);
 	}
 
-      for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++)
+      if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1)
+	  && gregset->r_fprs_offset != -1)
+	regcache_raw_supply (regcache, SPARC64_FPRS_REGNUM,
+			     regs + gregset->r_fprs_offset);
+    }
+
+  if (regnum == SPARC_G0_REGNUM || regnum == -1)
+    regcache_raw_supply (regcache, SPARC_G0_REGNUM, NULL);
+
+  if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
+    {
+      int offset = gregset->r_g1_offset;
+
+      if (sparc32)
+	offset += 4;
+
+      for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++)
 	{
 	  if (regnum == i || regnum == -1)
+	    regcache_raw_supply (regcache, i, regs + offset);
+	  offset += 8;
+	}
+    }
+
+  if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1)
+    {
+      /* Not all of the register set variants include Locals and
+         Inputs.  For those that don't, we read them off the stack.  */
+      if (gregset->r_l0_offset == -1)
+	{
+	  ULONGEST sp;
+
+	  regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp);
+	  sparc_supply_rwindow (regcache, sp, regnum);
+	}
+      else
+	{
+	  int offset = gregset->r_l0_offset;
+
+	  if (sparc32)
+	    offset += 4;
+
+	  for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++)
 	    {
-	      target_read_memory (sp + ((i - SPARC_L0_REGNUM) * 4),
-				  buf + offset, 4);
-	      supply_register (i, buf);
+	      if (regnum == i || regnum == -1)
+		regcache_raw_supply (regcache, i, regs + offset);
+	      offset += 8;
 	    }
 	}
     }
 }
 
 void
-sparc_fill_rwindow (CORE_ADDR sp, int regnum)
+sparc64_collect_gregset (const struct sparc_gregset *gregset,
+			 const struct regcache *regcache,
+			 int regnum, void *gregs)
 {
-  int offset = 0;
-  char buf[8];
+  int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+  char *regs = gregs;
   int i;
 
-  if (sp & 1)
+  if (sparc32)
     {
-      /* Registers are 64-bit.  */
-      sp += BIAS;
+      if (regnum == SPARC32_PSR_REGNUM || regnum == -1)
+	{
+	  int offset = gregset->r_tstate_offset;
+	  ULONGEST tstate, psr;
+	  char buf[8];
+
+	  tstate = extract_unsigned_integer (regs + offset, 8);
+	  regcache_raw_collect (regcache, SPARC32_PSR_REGNUM, buf);
+	  psr = extract_unsigned_integer (buf, 4);
+	  tstate |= (psr & PSR_ICC) << 12;
+	  if ((psr & (PSR_VERS | PSR_IMPL)) == PSR_V8PLUS)
+	    tstate |= (psr & PSR_XCC) << 20;
+	  store_unsigned_integer (buf, 8, tstate);
+	  memcpy (regs + offset, buf, 8);
+	}
 
-      for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++)
+      if (regnum == SPARC32_PC_REGNUM || regnum == -1)
+	regcache_raw_collect (regcache, SPARC32_PC_REGNUM,
+			      regs + gregset->r_pc_offset + 4);
+
+      if (regnum == SPARC32_NPC_REGNUM || regnum == -1)
+	regcache_raw_collect (regcache, SPARC32_NPC_REGNUM,
+			      regs + gregset->r_npc_offset + 4);
+
+      if (regnum == SPARC32_Y_REGNUM || regnum == -1)
 	{
-	  if (regnum == -1 || regnum == SPARC_SP_REGNUM || regnum == i)
-	    {
-	      regcache_collect (i, buf);
-	      target_write_memory (sp + ((i - SPARC_L0_REGNUM) * 8), buf, 8);
-	    }
+	  int offset = gregset->r_y_offset + 8 - gregset->r_y_size;
+	  regcache_raw_collect (regcache, SPARC32_Y_REGNUM, regs + offset);
 	}
     }
   else
     {
-      /* Registers are 32-bit.  Toss any sign-extension of the stack
-	 pointer.  */
-      sp &= 0xffffffffUL;
+      if (regnum == SPARC64_STATE_REGNUM || regnum == -1)
+	regcache_raw_collect (regcache, SPARC64_STATE_REGNUM,
+			      regs + gregset->r_tstate_offset);
+
+      if (regnum == SPARC64_PC_REGNUM || regnum == -1)
+	regcache_raw_collect (regcache, SPARC64_PC_REGNUM,
+			      regs + gregset->r_pc_offset);
 
-      /* Only use the bottom half if we're in 64-bit mode.  */
-      if (gdbarch_ptr_bit (current_gdbarch) == 64)
-	offset = 4;
+      if (regnum == SPARC64_NPC_REGNUM || regnum == -1)
+	regcache_raw_collect (regcache, SPARC64_NPC_REGNUM,
+			      regs + gregset->r_npc_offset);
 
-      for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++)
+      if (regnum == SPARC64_Y_REGNUM || regnum == -1)
 	{
-	  if (regnum == -1 || regnum == SPARC_SP_REGNUM || regnum == i)
+	  char buf[8];
+
+	  regcache_raw_collect (regcache, SPARC64_Y_REGNUM, buf);
+	  memcpy (regs + gregset->r_y_offset,
+		  buf + 8 - gregset->r_y_size, gregset->r_y_size);
+	}
+
+      if ((regnum == SPARC64_FPRS_REGNUM || regnum == -1)
+	  && gregset->r_fprs_offset != -1)
+	regcache_raw_collect (regcache, SPARC64_FPRS_REGNUM,
+			      regs + gregset->r_fprs_offset);
+
+    }
+
+  if ((regnum >= SPARC_G1_REGNUM && regnum <= SPARC_O7_REGNUM) || regnum == -1)
+    {
+      int offset = gregset->r_g1_offset;
+
+      if (sparc32)
+	offset += 4;
+
+      /* %g0 is always zero.  */
+      for (i = SPARC_G1_REGNUM; i <= SPARC_O7_REGNUM; i++)
+	{
+	  if (regnum == i || regnum == -1)
+	    regcache_raw_collect (regcache, i, regs + offset);
+	  offset += 8;
+	}
+    }
+
+  if ((regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM) || regnum == -1)
+    {
+      /* Not all of the register set variants include Locals and
+         Inputs.  For those that don't, we read them off the stack.  */
+      if (gregset->r_l0_offset != -1)
+	{
+	  int offset = gregset->r_l0_offset;
+
+	  if (sparc32)
+	    offset += 4;
+
+	  for (i = SPARC_L0_REGNUM; i <= SPARC_I7_REGNUM; i++)
 	    {
-	      regcache_collect (i, buf);
-	      target_write_memory (sp + ((i - SPARC_L0_REGNUM) * 4),
-				   buf + offset, 4);
+	      if (regnum == i || regnum == -1)
+		regcache_raw_collect (regcache, i, regs + offset);
+	      offset += 8;
 	    }
 	}
     }
 }
-
 
-/* Provide a prototype to silence -Wmissing-prototypes.  */
-void _initialize_sparc64_tdep (void);
+void
+sparc64_supply_fpregset (struct regcache *regcache,
+			 int regnum, const void *fpregs)
+{
+  int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+  const char *regs = fpregs;
+  int i;
+
+  for (i = 0; i < 32; i++)
+    {
+      if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
+	regcache_raw_supply (regcache, SPARC_F0_REGNUM + i, regs + (i * 4));
+    }
+
+  if (sparc32)
+    {
+      if (regnum == SPARC32_FSR_REGNUM || regnum == -1)
+	regcache_raw_supply (regcache, SPARC32_FSR_REGNUM,
+			     regs + (32 * 4) + (16 * 8) + 4);
+    }
+  else
+    {
+      for (i = 0; i < 16; i++)
+	{
+	  if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
+	    regcache_raw_supply (regcache, SPARC64_F32_REGNUM + i,
+				 regs + (32 * 4) + (i * 8));
+	}
+
+      if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
+	regcache_raw_supply (regcache, SPARC64_FSR_REGNUM,
+			     regs + (32 * 4) + (16 * 8));
+    }
+}
 
 void
-_initialize_sparc64_tdep (void)
+sparc64_collect_fpregset (const struct regcache *regcache,
+			  int regnum, void *fpregs)
 {
-  register_gdbarch_init (bfd_arch_sparc, sparc64_gdbarch_init);
+  int sparc32 = (gdbarch_ptr_bit (current_gdbarch) == 32);
+  char *regs = fpregs;
+  int i;
+
+  for (i = 0; i < 32; i++)
+    {
+      if (regnum == (SPARC_F0_REGNUM + i) || regnum == -1)
+	regcache_raw_collect (regcache, SPARC_F0_REGNUM + i, regs + (i * 4));
+    }
+
+  if (sparc32)
+    {
+      if (regnum == SPARC32_FSR_REGNUM || regnum == -1)
+	regcache_raw_collect (regcache, SPARC32_FSR_REGNUM,
+			      regs + (32 * 4) + (16 * 8) + 4);
+    }
+  else
+    {
+      for (i = 0; i < 16; i++)
+	{
+	  if (regnum == (SPARC64_F32_REGNUM + i) || regnum == -1)
+	    regcache_raw_collect (regcache, SPARC64_F32_REGNUM + i,
+				  regs + (32 * 4) + (i * 8));
+	}
+
+      if (regnum == SPARC64_FSR_REGNUM || regnum == -1)
+	regcache_raw_collect (regcache, SPARC64_FSR_REGNUM,
+			      regs + (32 * 4) + (16 * 8));
+    }
 }