tm-hppa64.h

gdb-6.0 linux 下的调试工具

/* 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 ([e-mail]).

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 value;
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

/* NOTE: cagney/2003-07-27: Using CC='cc +DA2.0W -Ae' configure
   hppa64-hp-hpux11.00; GDB managed to build / start / break main /
   run with multi-arch enabled.  Not sure about much else as there
   appears to be an unrelated problem in the SOM symbol table reader
   causing GDB to loose line number information.  Since prior to this
   switch and a other recent tweaks, 64 bit PA hadn't been building
   for some months, this is probably the lesser of several evils.  */
#define GDB_MULTI_ARCH GDB_MULTI_ARCH_PARTIAL

/* FIXME: brobecker 2003-05-22: All the definition from this point until
   the include of pa/tm-hppah.h are extracted from tm-hppa.h and tm-hppah.h.
   They have been temporarily moved here, until hppa64 is multiarched too.  */

#if !GDB_MULTI_ARCH
extern int hppa_hpux_pc_in_sigtramp (CORE_ADDR pc, char *name);
#define PC_IN_SIGTRAMP(pc, name) hppa_hpux_pc_in_sigtramp (pc, name)
#endif

#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_locals_address (struct frame_info *fi);
#define DEPRECATED_FRAME_LOCALS_ADDRESS(fi) hppa_frame_locals_address (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