path: root/gdb/config/pa/tm-hppa64.h

/* Parameters for execution on any Hewlett-Packard PA-RISC machine.
   Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1995, 1999, 2000
   Free Software Foundation, Inc.

   Contributed by the Center for Software Science at the
   University of Utah (pa-gdb-bugs@cs.utah.edu).

This file is part of GDB.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

struct type;
struct frame_info;

/* PA 64-bit specific definitions.  Override those which are in
   tm-hppa.h */

/* jimb: this must go.  I'm just using it to disable code I haven't
   gotten working yet.  */
#define GDB_TARGET_IS_HPPA_20W

/* FIXME: brobecker 2003-04-21: Although 32bit hppa is partially multiarched,
   the conversion for hppa64 hasn't been completed yet.  */
#define GDB_MULTI_ARCH 0

/* FIXME: brobecker 2003-04-21: All the definition from this point until
   the include of pa/tm-hppah.h are extracted from tm-hppa.h.  They have
   been temporarily moved here, until hppa64 is multiarched too.  */

#if !GDB_MULTI_ARCH
extern int hppa_reg_struct_has_addr (int gcc_p, struct type *type);
#define REG_STRUCT_HAS_ADDR(gcc_p,type) hppa_reg_struct_has_addr (gcc_p,type)
#endif

/* Offset from address of function to start of its code.
   Zero on most machines.  */

#if !GDB_MULTI_ARCH
#define FUNCTION_START_OFFSET 0
#endif

/* Advance PC across any function entry prologue instructions
   to reach some "real" code.  */

#if !GDB_MULTI_ARCH
extern CORE_ADDR hppa_skip_prologue (CORE_ADDR);
#define SKIP_PROLOGUE(pc) (hppa_skip_prologue (pc))
#endif

/* If PC is in some function-call trampoline code, return the PC
   where the function itself actually starts.  If not, return NULL.  */

#if !GDB_MULTI_ARCH
#define	SKIP_TRAMPOLINE_CODE(pc) hppa_skip_trampoline_code (pc)
extern CORE_ADDR hppa_skip_trampoline_code (CORE_ADDR);
#endif

/* Return non-zero if we are in an appropriate trampoline. */

#if !GDB_MULTI_ARCH
#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \
   hppa_in_solib_call_trampoline (pc, name)
extern int hppa_in_solib_call_trampoline (CORE_ADDR, char *);
#endif

#if !GDB_MULTI_ARCH
#define IN_SOLIB_RETURN_TRAMPOLINE(pc, name) \
  hppa_in_solib_return_trampoline (pc, name)
extern int hppa_in_solib_return_trampoline (CORE_ADDR, char *);
#endif

#if !GDB_MULTI_ARCH
#undef	DEPRECATED_SAVED_PC_AFTER_CALL
#define DEPRECATED_SAVED_PC_AFTER_CALL(frame) hppa_saved_pc_after_call (frame)
extern CORE_ADDR hppa_saved_pc_after_call (struct frame_info *);
#endif

#if !GDB_MULTI_ARCH
extern int hppa_inner_than (CORE_ADDR lhs, CORE_ADDR rhs);
#define INNER_THAN(lhs,rhs) hppa_inner_than(lhs,rhs)
#endif

#if !GDB_MULTI_ARCH
extern CORE_ADDR hppa_stack_align (CORE_ADDR sp);
#define STACK_ALIGN(sp) hppa_stack_align (sp)
#endif

/* Amount PC must be decremented by after a breakpoint.  This is often
   the number of bytes returned by BREAKPOINT_FROM_PC but not always.

   Not on the PA-RISC */

#if !GDB_MULTI_ARCH
#define DECR_PC_AFTER_BREAK 0
#endif

/* Say how long (ordinary) registers are.  This is a piece of bogosity
   used in push_word and a few other places; REGISTER_RAW_SIZE is the
   real way to know how big a register is.  */

#if !GDB_MULTI_ARCH
#define DEPRECATED_REGISTER_SIZE 4
#endif

/* Number of machine registers */

#if !GDB_MULTI_ARCH
#define NUM_REGS 128
#endif

#if !GDB_MULTI_ARCH
#define DEPRECATED_FP_REGNUM 3		/* Contains address of executing stack */
				/* frame */
#endif
#if !GDB_MULTI_ARCH
#define SP_REGNUM 30		/* Contains address of top of stack */
#endif

#if !GDB_MULTI_ARCH
#define FP0_REGNUM 64		/* floating point reg. 0 (fspr) */
#endif

/* compatibility with the rest of gdb. */
#if !GDB_MULTI_ARCH
#define PC_REGNUM PCOQ_HEAD_REGNUM
#endif
#if !GDB_MULTI_ARCH
#define NPC_REGNUM PCOQ_TAIL_REGNUM
#endif

/* Number of bytes of storage in the actual machine representation
   for register N.  On the PA-RISC, all regs are 4 bytes, including
   the FP registers (they're accessed as two 4 byte halves).  */

#if !GDB_MULTI_ARCH
extern int hppa_register_raw_size (int reg_nr);
#define REGISTER_RAW_SIZE(N) hppa_register_raw_size (N)
#endif

/* Total amount of space needed to store our copies of the machine's
   register state, the array `registers'.  */
#if !GDB_MULTI_ARCH
#define DEPRECATED_REGISTER_BYTES (NUM_REGS * 4)
#endif

#if !GDB_MULTI_ARCH
extern int hppa_register_byte (int reg_nr);
#define REGISTER_BYTE(N) hppa_register_byte (N)
#endif

/* Number of bytes of storage in the program's representation
   for register N. */

#if !GDB_MULTI_ARCH
#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
#endif

/* Largest value REGISTER_RAW_SIZE can have.  */

#if !GDB_MULTI_ARCH
#define DEPRECATED_MAX_REGISTER_RAW_SIZE 4
#endif

/* Largest value REGISTER_VIRTUAL_SIZE can have.  */

#if !GDB_MULTI_ARCH
#define DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE 8
#endif

#if !GDB_MULTI_ARCH
extern struct type * hppa_register_virtual_type (int reg_nr);
#define REGISTER_VIRTUAL_TYPE(N) hppa_register_virtual_type (N)
#endif

#if !GDB_MULTI_ARCH
extern void hppa_store_struct_return (CORE_ADDR addr, CORE_ADDR sp);
#define STORE_STRUCT_RETURN(ADDR, SP) hppa_store_struct_return (ADDR, SP)
#endif

/* Extract from an array REGBUF containing the (raw) register state
   a function return value of type TYPE, and copy that, in virtual format,
   into VALBUF.  */

#if !GDB_MULTI_ARCH
void hppa_extract_return_value (struct type *type, char *regbuf, char *valbuf);
#define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
  hppa_extract_return_value (TYPE, REGBUF, VALBUF);
#endif

 /* elz: decide whether the function returning a value of type type
    will put it on the stack or in the registers.
    The pa calling convention says that:
    register 28 (called ret0 by gdb) contains any ASCII char,
    and any non_floating point value up to 32-bits.
    reg 28 and 29 contain non-floating point up tp 64 bits and larger
    than 32 bits. (higer order word in reg 28).
    fr4: floating point up to 64 bits
    sr1: space identifier (32-bit)
    stack: any lager than 64-bit, with the address in r28
  */
#if !GDB_MULTI_ARCH
extern use_struct_convention_fn hppa_use_struct_convention;
#define USE_STRUCT_CONVENTION(gcc_p,type) hppa_use_struct_convention (gcc_p,type)
#endif

/* Write into appropriate registers a function return value
   of type TYPE, given in virtual format.  */

#if !GDB_MULTI_ARCH
extern void hppa_store_return_value (struct type *type, char *valbuf);
#define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \
  hppa_store_return_value (TYPE, VALBUF);
#endif

#if !GDB_MULTI_ARCH
extern CORE_ADDR hppa_extract_struct_value_address (char *regbuf);
#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
  hppa_extract_struct_value_address (REGBUF)
#endif

#if !GDB_MULTI_ARCH
extern int hppa_cannot_store_register (int regnum);
#define CANNOT_STORE_REGISTER(regno) hppa_cannot_store_register (regno)
#endif

#if !GDB_MULTI_ARCH
#define DEPRECATED_INIT_EXTRA_FRAME_INFO(fromleaf, frame) hppa_init_extra_frame_info (fromleaf, frame)
extern void hppa_init_extra_frame_info (int, struct frame_info *);
#endif

/* Describe the pointer in each stack frame to the previous stack frame
   (its caller).  */

/* DEPRECATED_FRAME_CHAIN takes a frame's nominal address and produces
   the frame's chain-pointer.  */

/* In the case of the PA-RISC, the frame's nominal address
   is the address of a 4-byte word containing the calling frame's
   address (previous FP).  */

#if !GDB_MULTI_ARCH
#define DEPRECATED_FRAME_CHAIN(thisframe) hppa_frame_chain (thisframe)
extern CORE_ADDR hppa_frame_chain (struct frame_info *);
#endif

#if !GDB_MULTI_ARCH
extern int hppa_frame_chain_valid (CORE_ADDR, struct frame_info *);
#define DEPRECATED_FRAME_CHAIN_VALID(chain, thisframe) hppa_frame_chain_valid (chain, thisframe)
#endif

/* Define other aspects of the stack frame.  */

/* A macro that tells us whether the function invocation represented
   by FI does not have a frame on the stack associated with it.  If it
   does not, FRAMELESS is set to 1, else 0.  */
#if !GDB_MULTI_ARCH
#define FRAMELESS_FUNCTION_INVOCATION(FI) \
  (hppa_frameless_function_invocation (FI))
extern int hppa_frameless_function_invocation (struct frame_info *);
#endif

#if !GDB_MULTI_ARCH
extern CORE_ADDR hppa_frame_saved_pc (struct frame_info *frame);
#define DEPRECATED_FRAME_SAVED_PC(FRAME) hppa_frame_saved_pc (FRAME)
#endif

#if !GDB_MULTI_ARCH
extern CORE_ADDR hppa_frame_args_address (struct frame_info *fi);
#define FRAME_ARGS_ADDRESS(fi) hppa_frame_args_address (fi)
#endif

#if !GDB_MULTI_ARCH
extern CORE_ADDR hppa_frame_locals_address (struct frame_info *fi);
#define FRAME_LOCALS_ADDRESS(fi) hppa_frame_locals_address (fi)
#endif

#if !GDB_MULTI_ARCH
extern int hppa_frame_num_args (struct frame_info *frame);
#define FRAME_NUM_ARGS(fi) hppa_frame_num_args (fi)
#endif

#if !GDB_MULTI_ARCH
#define FRAME_ARGS_SKIP 0
#endif

/* Things needed for making the inferior call functions.  */

#if !GDB_MULTI_ARCH
#define DEPRECATED_PUSH_DUMMY_FRAME hppa_push_dummy_frame ()
extern void hppa_push_dummy_frame (void);
#endif

/* Discard from the stack the innermost frame, 
   restoring all saved registers.  */
#if !GDB_MULTI_ARCH
#define DEPRECATED_POP_FRAME  hppa_pop_frame ()
extern void hppa_pop_frame (void);
#endif

#if !GDB_MULTI_ARCH
#define DEPRECATED_CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 28)
#endif

#if !GDB_MULTI_ARCH
#define DEPRECATED_CALL_DUMMY_START_OFFSET 0
#endif

#if !GDB_MULTI_ARCH
#define DEPRECATED_PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
  (hppa_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr)))
extern CORE_ADDR hppa_push_arguments (int, struct value **, CORE_ADDR, int,
				      CORE_ADDR);
#endif

#if !GDB_MULTI_ARCH
extern CORE_ADDR hppa_smash_text_address (CORE_ADDR addr);
#define SMASH_TEXT_ADDRESS(addr) hppa_smash_text_address (addr)
#endif

#if !GDB_MULTI_ARCH
#define BELIEVE_PCC_PROMOTION 1
#endif

#if !GDB_MULTI_ARCH
#define TARGET_READ_PC(pid) hppa_target_read_pc (pid)
extern CORE_ADDR hppa_target_read_pc (ptid_t);
#endif

#if !GDB_MULTI_ARCH
#define TARGET_WRITE_PC(v,pid) hppa_target_write_pc (v,pid)
extern void hppa_target_write_pc (CORE_ADDR, ptid_t);
#endif

#if !GDB_MULTI_ARCH
#define DEPRECATED_TARGET_READ_FP() hppa_target_read_fp ()
extern CORE_ADDR hppa_target_read_fp (void);
#endif

#include "pa/tm-hppah.h"

#define HPUX_1100 1

/* The low two bits of the IA are the privilege level of the instruction.  */
#define ADDR_BITS_REMOVE(addr) ((CORE_ADDR)addr & (CORE_ADDR)~3)

/* Say how long (ordinary) registers are.  This is used in
   push_word and a few other places, but REGISTER_RAW_SIZE is
   the real way to know how big a register is.  */

#undef DEPRECATED_REGISTER_SIZE
#define DEPRECATED_REGISTER_SIZE 8

/* Number of bytes of storage in the actual machine representation
   for register N.  On the PA-RISC 2.0, all regs are 8 bytes, including
   the FP registers (they're accessed as two 4 byte halves).  */

#undef REGISTER_RAW_SIZE
#define REGISTER_RAW_SIZE(N) 8

/* Largest value REGISTER_RAW_SIZE can have.  */

#undef DEPRECATED_MAX_REGISTER_RAW_SIZE
#define DEPRECATED_MAX_REGISTER_RAW_SIZE 8

/* Total amount of space needed to store our copies of the machine's
   register state, the array `registers'.  */

#undef DEPRECATED_REGISTER_BYTES
#define DEPRECATED_REGISTER_BYTES (NUM_REGS * 8)

/* Index within `registers' of the first byte of the space for
   register N.  */

#undef REGISTER_BYTE
#define REGISTER_BYTE(N) ((N) * 8)

#undef REGISTER_VIRTUAL_TYPE
#define REGISTER_VIRTUAL_TYPE(N) \
 ((N) < FP4_REGNUM ? builtin_type_unsigned_long_long : builtin_type_double)


/* Number of machine registers */
#undef NUM_REGS
#define NUM_REGS 96

/* Initializer for an array of names of registers.
   There should be NUM_REGS strings in this initializer.
   They are in rows of eight entries  */
#undef REGISTER_NAMES
#define REGISTER_NAMES	\
 {"flags",  "r1",      "rp",      "r3",    "r4",     "r5",      "r6",     "r7",    \
  "r8",     "r9",      "r10",     "r11",   "r12",    "r13",     "r14",    "r15",   \
  "r16",    "r17",     "r18",     "r19",   "r20",    "r21",     "r22",    "r23",   \
  "r24",    "r25",     "r26",     "dp",    "ret0",   "ret1",    "sp",     "r31",   \
  "sar",    "pcoqh",   "pcsqh",   "pcoqt", "pcsqt",  "eiem",    "iir",    "isr",   \
  "ior",    "ipsw",    "goto",    "sr4",   "sr0",    "sr1",     "sr2",    "sr3",   \
  "sr5",    "sr6",     "sr7",     "cr0",   "cr8",    "cr9",     "ccr",    "cr12",  \
  "cr13",   "cr24",    "cr25",    "cr26",  "mpsfu_high","mpsfu_low","mpsfu_ovflo","pad",\
  "fpsr",    "fpe1",   "fpe2",    "fpe3",  "fr4",    "fr5",     "fr6",    "fr7", \
  "fr8",     "fr9",    "fr10",    "fr11",  "fr12",   "fr13",    "fr14",   "fr15", \
  "fr16",    "fr17",   "fr18",    "fr19",  "fr20",   "fr21",    "fr22",   "fr23", \
  "fr24",    "fr25",   "fr26",    "fr27",   "fr28",  "fr29",    "fr30",   "fr31"}

#undef FP0_REGNUM
#undef FP4_REGNUM
#define FP0_REGNUM 64		/* floating point reg. 0 (fspr)*/
#define FP4_REGNUM 68

/* Redefine some target bit sizes from the default.  */

/* Number of bits in a long or unsigned long for the target machine. */

#define TARGET_LONG_BIT 64

/* Number of bits in a long long or unsigned long long for the 
   target machine.  */

#define TARGET_LONG_LONG_BIT 64

/* Number of bits in a pointer for the target machine */

#define TARGET_PTR_BIT 64

/* Argument Pointer Register */
#define AP_REGNUM 29

#define DP_REGNUM 27

#define FP5_REGNUM 70

#define SR5_REGNUM 48

/* We access locals from SP. This may not work for frames which call
   alloca; for those, we may need to consult unwind tables.
   jimb: FIXME.  */
#undef FRAME_LOCALS_ADDRESS
#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)

/* For a number of horrible reasons we may have to adjust the location
   of variables on the stack.  Ugh.  jimb: why? */
#define HPREAD_ADJUST_STACK_ADDRESS(ADDR) hpread_adjust_stack_address(ADDR)

extern int hpread_adjust_stack_address (CORE_ADDR);


/* jimb: omitted dynamic linking stuff here */

/* This sequence of words is the instructions

; Call stack frame has already been built by gdb. Since we could be calling
; a varargs function, and we do not have the benefit of a stub to put things in
; the right place, we load the first 8 word of arguments into both the general
; and fp registers.
call_dummy
	nop
        copy %r4,%r29
        copy %r5,%r22
        copy %r6,%r27
        fldd -64(0,%r29),%fr4
        fldd -56(0,%r29),%fr5
        fldd -48(0,%r29),%fr6
        fldd -40(0,%r29),%fr7
        fldd -32(0,%r29),%fr8
        fldd -24(0,%r29),%fr9
        fldd -16(0,%r29),%fr10
        fldd -8(0,%r29),%fr11
        copy %r22,%r1
        ldd -64(%r29), %r26
        ldd -56(%r29), %r25
        ldd -48(%r29), %r24
        ldd -40(%r29), %r23
        ldd -32(%r29), %r22
        ldd -24(%r29), %r21
        ldd -16(%r29), %r20
        bve,l (%r1),%r2
        ldd -8(%r29), %r19
        break 4, 8
	mtsp %r21, %sr0
	ble 0(%sr0, %r22)
        nop
*/

/* Call dummys are sized and written out in word sized hunks.  So we have
   to pack the instructions into words.  Ugh.  */
#undef CALL_DUMMY
#define CALL_DUMMY {0x08000240349d0000LL, 0x34b6000034db0000LL, \
                    0x53a43f8353a53f93LL, 0x53a63fa353a73fb3LL,\
                    0x53a83fc353a93fd3LL, 0x2fa1100a2fb1100bLL,\
                    0x36c1000053ba3f81LL, 0x53b93f9153b83fa1LL,\
                    0x53b73fb153b63fc1LL, 0x53b53fd10fa110d4LL,\
                    0xe820f0000fb110d3LL, 0x0001000400151820LL,\
                    0xe6c0000008000240LL}

#define DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET 22 * 4

/* DEPRECATED_CALL_DUMMY_LENGTH is computed based on the size of a
   word on the target machine, not the size of an instruction.  Since
   a word on this target holds two instructions we have to divide the
   instruction size by two to get the word size of the dummy.  */
#undef DEPRECATED_CALL_DUMMY_LENGTH
#define DEPRECATED_CALL_DUMMY_LENGTH (INSTRUCTION_SIZE * 26 / 2)

/* The PA64 ABI mandates a 16 byte stack alignment.  */
#undef STACK_ALIGN
#define STACK_ALIGN(arg) ( ((arg)%16) ? (((arg)+15)&-16) : (arg))

/* The PA64 ABI reserves 64 bytes of stack space for outgoing register
   parameters.  */
#undef REG_PARM_STACK_SPACE
#define REG_PARM_STACK_SPACE 64

/* Use the 64-bit calling conventions designed for the PA2.0 in wide mode.  */
#define PA20W_CALLING_CONVENTIONS

#undef FUNC_LDIL_OFFSET
#undef FUNC_LDO_OFFSET
#undef SR4EXPORT_LDIL_OFFSET
#undef SR4EXPORT_LDO_OFFSET

#undef REG_STRUCT_HAS_ADDR

#undef DEPRECATED_EXTRACT_RETURN_VALUE
/* RM: floats are returned in FR4R, doubles in FR4
 *     integral values are in r28, padded on the left 
 *     aggregates less that 65 bits are in r28, right padded 
 *     aggregates upto 128 bits are in r28 and r29, right padded
 */ 
#define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
  { \
    if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
      memcpy ((VALBUF), \
	      ((char *)(REGBUF)) + REGISTER_BYTE (FP4_REGNUM) + \
              (DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
	      TYPE_LENGTH (TYPE)); \
    else if  (is_integral_type(TYPE))   \
       memcpy ((VALBUF), \
               (char *)(REGBUF) + REGISTER_BYTE (28) + \
               (DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
               TYPE_LENGTH (TYPE)); \
    else if (TYPE_LENGTH (TYPE) <= 8)   \
       memcpy ((VALBUF), \
               (char *)(REGBUF) + REGISTER_BYTE (28), \
               TYPE_LENGTH (TYPE)); \
    else if (TYPE_LENGTH (TYPE) <= 16)   \
      { \
        memcpy ((VALBUF), \
                (char *)(REGBUF) + REGISTER_BYTE (28), \
                8); \
        memcpy (((char *) VALBUF + 8), \
                (char *)(REGBUF) + REGISTER_BYTE (29), \
                TYPE_LENGTH (TYPE) - 8); \
       } \
  }

/* RM: struct upto 128 bits are returned in registers */
#undef USE_STRUCT_CONVENTION
#define USE_STRUCT_CONVENTION(gcc_p, value_type)\
  (TYPE_LENGTH (value_type) > 16)                

/* RM: for return command */
#undef DEPRECATED_STORE_RETURN_VALUE
#define DEPRECATED_STORE_RETURN_VALUE(TYPE,VALBUF) \
  { \
    if (TYPE_CODE (TYPE) == TYPE_CODE_FLT) \
      deprecated_write_register_bytes \
	      (REGISTER_BYTE (FP4_REGNUM) + \
              (DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
              (VALBUF), \
	      TYPE_LENGTH (TYPE)); \
    else if (is_integral_type(TYPE))   \
       deprecated_write_register_bytes \
              (REGISTER_BYTE (28) + \
                 (DEPRECATED_REGISTER_SIZE - TYPE_LENGTH (TYPE)), \
               (VALBUF), \
               TYPE_LENGTH (TYPE)); \
    else if (TYPE_LENGTH (TYPE) <= 8)   \
       deprecated_write_register_bytes \
             ( REGISTER_BYTE (28), \
               (VALBUF), \
               TYPE_LENGTH (TYPE)); \
    else if (TYPE_LENGTH (TYPE) <= 16)   \
      { \
        deprecated_write_register_bytes \
               (REGISTER_BYTE (28), \
                (VALBUF), \
                8); \
        deprecated_write_register_bytes \
               (REGISTER_BYTE (29), \
                ((char *) VALBUF + 8), \
                TYPE_LENGTH (TYPE) - 8); \
       } \
  }

/* RM: these are the PA64 equivalents of the macros in tm-hppah.h --
 * see comments there.  For PA64, the save_state structure is at an
 * offset of 24 32-bit words from the sigcontext structure. The 64 bit
 * general registers are at an offset of 640 bytes from the beginning of the
 * save_state structure, and the floating pointer register are at an offset
 * of 256 bytes from the beginning of the save_state structure.
 */
#undef FRAME_SAVED_PC_IN_SIGTRAMP
#define FRAME_SAVED_PC_IN_SIGTRAMP(FRAME, TMP) \
{ \
  *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (33 * 8), 8); \
}

#undef FRAME_BASE_BEFORE_SIGTRAMP
#define FRAME_BASE_BEFORE_SIGTRAMP(FRAME, TMP) \
{ \
  *(TMP) = read_memory_integer ((FRAME)->frame + (24 * 4) + 640 + (30 * 8), 8); \
}

#undef FRAME_FIND_SAVED_REGS_IN_SIGTRAMP
#define FRAME_FIND_SAVED_REGS_IN_SIGTRAMP(FRAME, FSR) \
{ \
  int i; \
  CORE_ADDR TMP1, TMP2; \
  TMP1 = (FRAME)->frame + (24 * 4) + 640; \
  TMP2 = (FRAME)->frame + (24 * 4) + 256; \
  for (i = 0; i < NUM_REGS; i++) \
    { \
      if (i == SP_REGNUM) \
        (FSR)[SP_REGNUM] = read_memory_integer (TMP1 + SP_REGNUM * 8, 8); \
      else if (i >= FP0_REGNUM) \
        (FSR)[i] = TMP2 + (i - FP0_REGNUM) * 8; \
      else \
        (FSR)[i] = TMP1 + i * 8; \
    } \
}

/* jimb: omitted purify call support */