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* ns32k-tdep.c: include gdbtypes.h, inferior.h, regcache.h,

Browse source 
target.s, arch-utils.h, ns32k-tdep.h.  Make many functions
static.  Rename some register numbers to put them in ns32k-tdep
private namespace.
(ns32k_get_saved_register, ns32k_gdbarch_init_32082,
ns32k_gdbarch_init_32382, ns32k_gdbarch_init, ns32k_dump_tdep): New
functions.
(_initialize_ns32k_tdep): Use gdbarch_register.
* ns32k-tdep.h: New file.
* ns32knbsd-tdep.c: New file.
* config/ns32k/nbsdaout.mt (TDEPFILES): Add ns32knbsd-tdep.o.
* config/ns32k/tm-nbsd.h: Include "ns32k/tm-ns32k.h".
(IN_SOLIB_CALL_TRAMPOLINE, REGISTER_NAME, NUM_REGS,
REGISTER_BYTES, REGISTER_BYTE): Remove.
* config/ns32k/tm-ns32k.h: New file.
* config/ns32k/tm-umax.h: Remove.
This commit is contained in:
Jason Thorpe 2002-05-27 01:05:16 +00:00
parent d95b65031e
commit 93d5585d5b
8 changed files with 425 additions and 249 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
gdb/ChangeLog
View file

@ -1,3 +1,22 @@
2002-05-26 Jason Thorpe <thorpej@wasabisystems.com>
* ns32k-tdep.c: include gdbtypes.h, inferior.h, regcache.h,
target.s, arch-utils.h, ns32k-tdep.h. Make many functions
static. Rename some register numbers to put them in ns32k-tdep
private namespace.
(ns32k_get_saved_register, ns32k_gdbarch_init_32082,
ns32k_gdbarch_init_32382, ns32k_gdbarch_init, ns32k_dump_tdep): New
functions.
(_initialize_ns32k_tdep): Use gdbarch_register.
* ns32k-tdep.h: New file.
* ns32knbsd-tdep.c: New file.
* config/ns32k/nbsdaout.mt (TDEPFILES): Add ns32knbsd-tdep.o.
* config/ns32k/tm-nbsd.h: Include "ns32k/tm-ns32k.h".
(IN_SOLIB_CALL_TRAMPOLINE, REGISTER_NAME, NUM_REGS,
REGISTER_BYTES, REGISTER_BYTE): Remove.
* config/ns32k/tm-ns32k.h: New file.
* config/ns32k/tm-umax.h: Remove.
2002-05-26 Jason Thorpe <thorpej@wasabisystems.com> 2002-05-26 Jason Thorpe <thorpej@wasabisystems.com>
* ns32k-tdep.c (ns32k_saved_pc_after_call, * ns32k-tdep.c (ns32k_saved_pc_after_call,

2
gdb/config/ns32k/nbsdaout.mt
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@ -1,3 +1,3 @@
# Target: PC532 running NetBSD # Target: PC532 running NetBSD
TDEPFILES= ns32k-tdep.o TDEPFILES= ns32k-tdep.o ns32knbsd-tdep.o
TM_FILE= tm-nbsd.h TM_FILE= tm-nbsd.h

24
gdb/config/ns32k/tm-nbsd.h
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@ -27,33 +27,11 @@
/* Most definitions from umax could be used. */ /* Most definitions from umax could be used. */
#include "ns32k/tm-umax.h" #include "ns32k/tm-ns32k.h"
/* Return non-zero if we are in a shared library trampoline code stub. */
#define IN_SOLIB_CALL_TRAMPOLINE(pc, name) \
(name && !strcmp(name, "_DYNAMIC"))
/* Saved Pc. Get it from sigcontext if within sigtramp. */ /* Saved Pc. Get it from sigcontext if within sigtramp. */
/* Offset to saved PC in sigcontext, from <machine/signal.h>. */ /* Offset to saved PC in sigcontext, from <machine/signal.h>. */
#define SIGCONTEXT_PC_OFFSET 20 #define SIGCONTEXT_PC_OFFSET 20
/* tm-umax.h assumes a 32082 fpu. We have a 32382 fpu. */
#undef REGISTER_NAME
#define REGISTER_NAME(REGNUM) ns32k_register_name_32382((REGNUM))
#undef NUM_REGS
#define NUM_REGS 29
/* Total amount of space needed to store our copies of the machine's
register state, the array `registers'. */
#undef REGISTER_BYTES
#define REGISTER_BYTES \
((NUM_REGS - 4) * REGISTER_RAW_SIZE(R0_REGNUM) \
+ 8 * REGISTER_RAW_SIZE(LP0_REGNUM))
#undef REGISTER_BYTE
#define REGISTER_BYTE(N) ns32k_register_byte_32382 ((N))
#endif /* TM_NBSD_H */ #endif /* TM_NBSD_H */

39
gdb/config/ns32k/tm-ns32k.h Normal file
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@ -0,0 +1,39 @@
/* Definitions to make GDB run on an encore under umax 4.2
Copyright 1987, 1989, 1991, 1993, 1994, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
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. */
#ifndef TM_NS32K_H
#define TM_NS32K_H
#define GDB_MULTI_ARCH GDB_MULTI_ARCH_PARTIAL
/* Need to get function ends by adding this to epilogue address from .bf
record, not using x_fsize field. */
#define FUNCTION_EPILOGUE_SIZE 4
/* Address of end of stack space. */
#ifndef STACK_END_ADDR
#define STACK_END_ADDR (0xfffff000)
#endif
#define NUM_GENERAL_REGS 8
#endif /* TM_NS32K_H */

191
gdb/config/ns32k/tm-umax.h
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@ -1,191 +0,0 @@
/* Definitions to make GDB run on an encore under umax 4.2
Copyright 1987, 1989, 1991, 1993, 1994, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
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. */
#include "regcache.h"
struct value;
struct type;
/* Need to get function ends by adding this to epilogue address from .bf
record, not using x_fsize field. */
#define FUNCTION_EPILOGUE_SIZE 4
/* Offset from address of function to start of its code.
Zero on most machines. */
#define FUNCTION_START_OFFSET 0
/* Advance PC across any function entry prologue instructions
to reach some "real" code. */
extern CORE_ADDR umax_skip_prologue (CORE_ADDR);
#define SKIP_PROLOGUE(pc) (umax_skip_prologue (pc))
CORE_ADDR ns32k_saved_pc_after_call (struct frame_info *);
#define SAVED_PC_AFTER_CALL(frame) ns32k_saved_pc_after_call ((frame))
/* Address of end of stack space. */
#ifndef STACK_END_ADDR
#define STACK_END_ADDR (0xfffff000)
#endif
/* Stack grows downward. */
#define INNER_THAN(lhs,rhs) core_addr_lessthan ((lhs), (rhs))
extern const unsigned char *ns32k_breakpoint_from_pc (CORE_ADDR *, int *);
#define BREAKPOINT_FROM_PC(PCP, LENP) ns32k_breakpoint_from_pc ((PCP), (LENP))
/* Amount PC must be decremented by after a breakpoint.
This is often the number of bytes in BREAKPOINT
but not always. */
#define DECR_PC_AFTER_BREAK 0
/* 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. */
#define REGISTER_SIZE 4
/* Number of machine registers */
#define NUM_REGS 25
#define NUM_GENERAL_REGS 8
extern char *ns32k_register_name_32082 (int);
extern char *ns32k_register_name_32382 (int);
#define REGISTER_NAME(REGNUM) ns32k_register_name_32082(REGNUM)
/* Register numbers of various important registers.
Note that some of these values are "real" register numbers,
and correspond to the general registers of the machine,
and some are "phony" register numbers which are too large
to be actual register numbers as far as the user is concerned
but do serve to get the desired values when passed to read_register. */
#define R0_REGNUM 0 /* General register 0 */
#define FP0_REGNUM 8 /* Floating point register 0 */
#define SP_REGNUM 16 /* Contains address of top of stack */
#define AP_REGNUM FP_REGNUM
#define FP_REGNUM 17 /* Contains address of executing stack frame */
#define PC_REGNUM 18 /* Contains program counter */
#define PS_REGNUM 19 /* Contains processor status */
#define FPS_REGNUM 20 /* Floating point status register */
#define LP0_REGNUM 21 /* Double register 0 (same as FP0) */
/* Total amount of space needed to store our copies of the machine's
register state, the array `registers'. */
#define REGISTER_BYTES \
((NUM_REGS - 4) * REGISTER_RAW_SIZE(R0_REGNUM) \
+ 4 * REGISTER_RAW_SIZE(LP0_REGNUM))
/* Index within `registers' of the first byte of the space for
register N. */
extern int ns32k_register_byte_32082 (int);
extern int ns32k_register_byte_32382 (int);
#define REGISTER_BYTE(N) ns32k_register_byte_32082 ((N))
extern int ns32k_register_raw_size (int);
#define REGISTER_RAW_SIZE(N) ns32k_register_raw_size ((N))
extern int ns32k_register_virtual_size (int);
#define REGISTER_VIRTUAL_SIZE(N) ns32k_register_virtual_size ((N))
/* Largest value REGISTER_RAW_SIZE can have. */
#define MAX_REGISTER_RAW_SIZE 8
/* Largest value REGISTER_VIRTUAL_SIZE can have. */
#define MAX_REGISTER_VIRTUAL_SIZE 8
struct type *ns32k_register_virtual_type (int);
#define REGISTER_VIRTUAL_TYPE(N) ns32k_register_virtual_type ((N))
extern void ns32k_store_struct_return (CORE_ADDR, CORE_ADDR);
#define STORE_STRUCT_RETURN(ADDR, SP) \
ns32k_store_struct_return ((ADDR), (SP))
extern void ns32k_extract_return_value (struct type *, char *, char *);
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
ns32k_extract_return_value ((TYPE), (REGBUF), (VALBUF))
extern void ns32k_store_return_value (struct type *, char *);
#define STORE_RETURN_VALUE(TYPE,VALBUF) \
ns32k_store_return_value ((TYPE), (VALBUF))
extern CORE_ADDR ns32k_extract_struct_value_address (char *);
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
ns32k_extract_struct_value_address ((REGBUF))
/* Describe the pointer in each stack frame to the previous stack frame
(its caller). */
CORE_ADDR ns32k_frame_chain (struct frame_info *);
#define FRAME_CHAIN(thisframe) ns32k_frame_chain ((thisframe))
CORE_ADDR ns32k_frame_saved_pc (struct frame_info *);
#define FRAME_SAVED_PC(FRAME) ns32k_frame_saved_pc ((FRAME))
CORE_ADDR ns32k_frame_args_address (struct frame_info *);
#define FRAME_ARGS_ADDRESS(fi) ns32k_frame_args_address ((fi))
CORE_ADDR ns32k_frame_locals_address (struct frame_info *);
#define FRAME_LOCALS_ADDRESS(fi) ns32k_frame_locals_address ((fi))
/* Return number of args passed to a frame.
Can return -1, meaning no way to tell. */
extern int umax_frame_num_args (struct frame_info *);
#define FRAME_NUM_ARGS(fi) (umax_frame_num_args ((fi)))
/* Return number of bytes at start of arglist that are not really args. */
#define FRAME_ARGS_SKIP 8
void ns32k_frame_init_saved_regs (struct frame_info *);
#define FRAME_INIT_SAVED_REGS(FI) ns32k_frame_init_saved_regs ((FI))
/* Things needed for making the inferior call functions. */
extern void ns32k_push_dummy_frame (void);
#define PUSH_DUMMY_FRAME ns32k_push_dummy_frame ()
extern void ns32k_pop_frame (void);
#define POP_FRAME ns32k_pop_frame ()
extern LONGEST ns32k_call_dummy_words[];
#define CALL_DUMMY_WORDS ns32k_call_dummy_words
extern int sizeof_ns32k_call_dummy_words;
#define SIZEOF_CALL_DUMMY_WORDS sizeof_ns32k_call_dummy_words
#define CALL_DUMMY_START_OFFSET 3
extern void ns32k_fix_call_dummy (char *, CORE_ADDR, CORE_ADDR, int,
struct value **, struct type *, int);
#define FIX_CALL_DUMMY(dummy, pc, fun, nargs, args, type, gcc_p) \
ns32k_fix_call_dummy ((dummy), (pc), (fun), (nargs), (args), (type), (gcc_p))

263
gdb/ns32k-tdep.c
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@ -1,4 +1,4 @@
/* Print NS 32000 instructions for GDB, the GNU debugger. /* Target dependent code for the NS32000, for GDB.
Copyright 1986, 1988, 1991, 1992, 1994, 1995, 1998, 1999, 2000, 2001, Copyright 1986, 1988, 1991, 1992, 1994, 1995, 1998, 1999, 2000, 2001,
2002 Free Software Foundation, Inc. 2002 Free Software Foundation, Inc.
@ -21,14 +21,22 @@
#include "defs.h" #include "defs.h"
#include "frame.h" #include "frame.h"
#include "gdbtypes.h"
#include "gdbcore.h" #include "gdbcore.h"
#include "inferior.h"
#include "regcache.h"
#include "target.h"
#include "arch-utils.h"
#include "ns32k-tdep.h"
static int sign_extend (int value, int bits); static int sign_extend (int value, int bits);
static CORE_ADDR ns32k_get_enter_addr (CORE_ADDR); static CORE_ADDR ns32k_get_enter_addr (CORE_ADDR);
static int ns32k_localcount (CORE_ADDR enter_pc); static int ns32k_localcount (CORE_ADDR enter_pc);
static void flip_bytes (void *, int); static void flip_bytes (void *, int);
char * static char *
ns32k_register_name_32082 (int regno) ns32k_register_name_32082 (int regno)
{ {
static char *register_names[] = static char *register_names[] =
@ -47,7 +55,7 @@ ns32k_register_name_32082 (int regno)
return (register_names[regno]); return (register_names[regno]);
} }
char * static char *
ns32k_register_name_32382 (int regno) ns32k_register_name_32382 (int regno)
{ {
static char *register_names[] = static char *register_names[] =
@ -67,16 +75,16 @@ ns32k_register_name_32382 (int regno)
return (register_names[regno]); return (register_names[regno]);
} }
int static int
ns32k_register_byte_32082 (int regno) ns32k_register_byte_32082 (int regno)
{ {
if (regno >= LP0_REGNUM) if (regno >= NS32K_LP0_REGNUM)
return (LP0_REGNUM * 4) + ((regno - LP0_REGNUM) * 8); return (NS32K_LP0_REGNUM * 4) + ((regno - NS32K_LP0_REGNUM) * 8);
return (regno * 4); return (regno * 4);
} }
int static int
ns32k_register_byte_32382 (int regno) ns32k_register_byte_32382 (int regno)
{ {
/* This is a bit yuk. The even numbered double precision floating /* This is a bit yuk. The even numbered double precision floating
@ -85,27 +93,27 @@ ns32k_register_byte_32382 (int regno)
registers are at the end. Doing it this way is compatible for both registers are at the end. Doing it this way is compatible for both
32081 and 32381 equipped machines. */ 32081 and 32381 equipped machines. */
return ((regno < LP0_REGNUM ? regno return ((regno < NS32K_LP0_REGNUM ? regno
: (regno - LP0_REGNUM) & 1 ? regno - 1 : (regno - NS32K_LP0_REGNUM) & 1 ? regno - 1
: (regno - LP0_REGNUM + FP0_REGNUM)) * 4); : (regno - NS32K_LP0_REGNUM + FP0_REGNUM)) * 4);
} }
int static int
ns32k_register_raw_size (int regno) ns32k_register_raw_size (int regno)
{ {
/* All registers are 4 bytes, except for the doubled floating /* All registers are 4 bytes, except for the doubled floating
registers. */ registers. */
return ((regno >= LP0_REGNUM) ? 8 : 4); return ((regno >= NS32K_LP0_REGNUM) ? 8 : 4);
} }
int static int
ns32k_register_virtual_size (int regno) ns32k_register_virtual_size (int regno)
{ {
return ((regno >= LP0_REGNUM) ? 8 : 4); return ((regno >= NS32K_LP0_REGNUM) ? 8 : 4);
} }
struct type * static struct type *
ns32k_register_virtual_type (int regno) ns32k_register_virtual_type (int regno)
{ {
if (regno < FP0_REGNUM) if (regno < FP0_REGNUM)
@ -114,7 +122,7 @@ ns32k_register_virtual_type (int regno)
if (regno < FP0_REGNUM + 8) if (regno < FP0_REGNUM + 8)
return (builtin_type_float); return (builtin_type_float);
if (regno < LP0_REGNUM) if (regno < NS32K_LP0_REGNUM)
return (builtin_type_int); return (builtin_type_int);
return (builtin_type_double); return (builtin_type_double);
@ -125,7 +133,7 @@ ns32k_register_virtual_type (int regno)
the new frame is not set up until the new function executes some the new frame is not set up until the new function executes some
instructions. */ instructions. */
CORE_ADDR static CORE_ADDR
ns32k_saved_pc_after_call (struct frame_info *frame) ns32k_saved_pc_after_call (struct frame_info *frame)
{ {
return (read_memory_integer (read_register (SP_REGNUM), 4)); return (read_memory_integer (read_register (SP_REGNUM), 4));
@ -134,7 +142,7 @@ ns32k_saved_pc_after_call (struct frame_info *frame)
/* Advance PC across any function entry prologue instructions /* Advance PC across any function entry prologue instructions
to reach some "real" code. */ to reach some "real" code. */
CORE_ADDR static CORE_ADDR
umax_skip_prologue (CORE_ADDR pc) umax_skip_prologue (CORE_ADDR pc)
{ {
register unsigned char op = read_memory_integer (pc, 1); register unsigned char op = read_memory_integer (pc, 1);
@ -151,7 +159,7 @@ umax_skip_prologue (CORE_ADDR pc)
return pc; return pc;
} }
const unsigned char * static const unsigned char *
ns32k_breakpoint_from_pc (CORE_ADDR *pcp, int *lenp) ns32k_breakpoint_from_pc (CORE_ADDR *pcp, int *lenp)
{ {
static const unsigned char breakpoint_insn[] = { 0xf2 }; static const unsigned char breakpoint_insn[] = { 0xf2 };
@ -166,7 +174,7 @@ ns32k_breakpoint_from_pc (CORE_ADDR *pcp, int *lenp)
so this will often not work properly. If the arg names so this will often not work properly. If the arg names
are known, it's likely most of them will be printed. */ are known, it's likely most of them will be printed. */
int static int
umax_frame_num_args (struct frame_info *fi) umax_frame_num_args (struct frame_info *fi)
{ {
int numargs; int numargs;
@ -292,7 +300,7 @@ ns32k_get_enter_addr (CORE_ADDR pc)
return enter_addr; /* pc is between enter and exit */ return enter_addr; /* pc is between enter and exit */
} }
CORE_ADDR static CORE_ADDR
ns32k_frame_chain (struct frame_info *frame) ns32k_frame_chain (struct frame_info *frame)
{ {
/* In the case of the NS32000 series, the frame's nominal address is the /* In the case of the NS32000 series, the frame's nominal address is the
@ -305,7 +313,7 @@ ns32k_frame_chain (struct frame_info *frame)
return (read_memory_integer (frame->frame, 4)); return (read_memory_integer (frame->frame, 4));
} }
CORE_ADDR static CORE_ADDR
ns32k_frame_saved_pc (struct frame_info *frame) ns32k_frame_saved_pc (struct frame_info *frame)
{ {
if (frame->signal_handler_caller) if (frame->signal_handler_caller)
@ -314,7 +322,7 @@ ns32k_frame_saved_pc (struct frame_info *frame)
return (read_memory_integer (frame->frame + 4, 4)); return (read_memory_integer (frame->frame + 4, 4));
} }
CORE_ADDR static CORE_ADDR
ns32k_frame_args_address (struct frame_info *frame) ns32k_frame_args_address (struct frame_info *frame)
{ {
if (ns32k_get_enter_addr (frame->pc) > 1) if (ns32k_get_enter_addr (frame->pc) > 1)
@ -323,18 +331,63 @@ ns32k_frame_args_address (struct frame_info *frame)
return (read_register (SP_REGNUM) - 4); return (read_register (SP_REGNUM) - 4);
} }
CORE_ADDR static CORE_ADDR
ns32k_frame_locals_address (struct frame_info *frame) ns32k_frame_locals_address (struct frame_info *frame)
{ {
return (frame->frame); return (frame->frame);
} }
static void
ns32k_get_saved_register (char *raw_buffer, int *optimized, CORE_ADDR *addrp,
struct frame_info *frame, int regnum,
enum lval_type *lval)
{
CORE_ADDR addr;
if (!target_has_registers)
error ("No registers.");
/* Normal systems don't optimize out things with register numbers. */
if (optimized != NULL)
*optimized = 0;
addr = find_saved_register (frame, regnum);
if (addr != 0)
{
if (lval != NULL)
*lval = lval_memory;
if (regnum == SP_REGNUM)
{
if (raw_buffer != NULL)
{
/* Put it back in target format. */
store_address (raw_buffer, REGISTER_RAW_SIZE (regnum),
(LONGEST) addr);
}
if (addrp != NULL)
*addrp = 0;
return;
}
if (raw_buffer != NULL)
target_read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum));
}
else
{
if (lval != NULL)
*lval = lval_register;
addr = REGISTER_BYTE (regnum);
if (raw_buffer != NULL)
read_register_gen (regnum, raw_buffer);
}
if (addrp != NULL)
*addrp = addr;
}
/* Code to initialize the addresses of the saved registers of frame described /* Code to initialize the addresses of the saved registers of frame described
by FRAME_INFO. This includes special registers such as pc and fp saved in by FRAME_INFO. This includes special registers such as pc and fp saved in
special ways in the stack frame. sp is even more special: the address we special ways in the stack frame. sp is even more special: the address we
return for it IS the sp for the next frame. */ return for it IS the sp for the next frame. */
void static void
ns32k_frame_init_saved_regs (struct frame_info *frame) ns32k_frame_init_saved_regs (struct frame_info *frame)
{ {
int regmask, regnum; int regmask, regnum;
@ -371,7 +424,7 @@ ns32k_frame_init_saved_regs (struct frame_info *frame)
} }
} }
void static void
ns32k_push_dummy_frame (void) ns32k_push_dummy_frame (void)
{ {
CORE_ADDR sp = read_register (SP_REGNUM); CORE_ADDR sp = read_register (SP_REGNUM);
@ -387,7 +440,7 @@ ns32k_push_dummy_frame (void)
write_register (SP_REGNUM, sp); write_register (SP_REGNUM, sp);
} }
void static void
ns32k_pop_frame (void) ns32k_pop_frame (void)
{ {
struct frame_info *frame = get_current_frame (); struct frame_info *frame = get_current_frame ();
@ -417,19 +470,19 @@ ns32k_pop_frame (void)
It is 16 bytes long. */ It is 16 bytes long. */
LONGEST ns32k_call_dummy_words[] = static LONGEST ns32k_call_dummy_words[] =
{ {
0x7f00ff82, 0x7f00ff82,
0x0201c0ae, 0x0201c0ae,
0x01a57f03, 0x01a57f03,
0xf2040302 0xf2040302
}; };
int sizeof_ns32k_call_dummy_words = sizeof (ns32k_call_dummy_words); static int sizeof_ns32k_call_dummy_words = sizeof (ns32k_call_dummy_words);
#define NS32K_CALL_DUMMY_ADDR 5 #define NS32K_CALL_DUMMY_ADDR 5
#define NS32K_CALL_DUMMY_NARGS 11 #define NS32K_CALL_DUMMY_NARGS 11
void static void
ns32k_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, ns32k_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
struct value **args, struct type *type, int gcc_p) struct value **args, struct type *type, int gcc_p)
{ {
@ -444,13 +497,13 @@ ns32k_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
store_unsigned_integer (dummy + NS32K_CALL_DUMMY_NARGS, 4, flipped); store_unsigned_integer (dummy + NS32K_CALL_DUMMY_NARGS, 4, flipped);
} }
void static void
ns32k_store_struct_return (CORE_ADDR addr, CORE_ADDR sp) ns32k_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
{ {
/* On this machine, this is a no-op (Encore Umax didn't use GCC). */ /* On this machine, this is a no-op (Encore Umax didn't use GCC). */
} }
void static void
ns32k_extract_return_value (struct type *valtype, char *regbuf, char *valbuf) ns32k_extract_return_value (struct type *valtype, char *regbuf, char *valbuf)
{ {
memcpy (valbuf, memcpy (valbuf,
@ -458,21 +511,163 @@ ns32k_extract_return_value (struct type *valtype, char *regbuf, char *valbuf)
FP0_REGNUM : 0), TYPE_LENGTH (valtype)); FP0_REGNUM : 0), TYPE_LENGTH (valtype));
} }
void static void
ns32k_store_return_value (struct type *valtype, char *valbuf) ns32k_store_return_value (struct type *valtype, char *valbuf)
{ {
write_register_bytes (TYPE_CODE (valtype) == TYPE_CODE_FLT ? write_register_bytes (TYPE_CODE (valtype) == TYPE_CODE_FLT ?
FP0_REGNUM : 0, valbuf, TYPE_LENGTH (valtype)); FP0_REGNUM : 0, valbuf, TYPE_LENGTH (valtype));
} }
CORE_ADDR static CORE_ADDR
ns32k_extract_struct_value_address (char *regbuf) ns32k_extract_struct_value_address (char *regbuf)
{ {
return (extract_address (regbuf + REGISTER_BYTE (0), REGISTER_RAW_SIZE (0))); return (extract_address (regbuf + REGISTER_BYTE (0), REGISTER_RAW_SIZE (0)));
} }
void
ns32k_gdbarch_init_32082 (struct gdbarch *gdbarch)
{
set_gdbarch_num_regs (gdbarch, NS32K_NUM_REGS_32082);
set_gdbarch_register_name (gdbarch, ns32k_register_name_32082);
set_gdbarch_register_bytes (gdbarch, NS32K_REGISTER_BYTES_32082);
set_gdbarch_register_byte (gdbarch, ns32k_register_byte_32082);
}
void
ns32k_gdbarch_init_32382 (struct gdbarch *gdbarch)
{
set_gdbarch_num_regs (gdbarch, NS32K_NUM_REGS_32382);
set_gdbarch_register_name (gdbarch, ns32k_register_name_32382);
set_gdbarch_register_bytes (gdbarch, NS32K_REGISTER_BYTES_32382);
set_gdbarch_register_byte (gdbarch, ns32k_register_byte_32382);
}
/* Initialize the current architecture based on INFO. If possible, re-use an
architecture from ARCHES, which is a list of architectures already created
during this debugging session.
Called e.g. at program startup, when reading a core file, and when reading
a binary file. */
static struct gdbarch *
ns32k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
{
struct gdbarch_tdep *tdep;
struct gdbarch *gdbarch;
enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
/* Try to determine the OS ABI of the object we are loading. */
if (info.abfd != NULL)
{
osabi = gdbarch_lookup_osabi (info.abfd);
}
/* Find a candidate among extant architectures. */
for (arches = gdbarch_list_lookup_by_info (arches, &info);
arches != NULL;
arches = gdbarch_list_lookup_by_info (arches->next, &info))
{
/* Make sure the OS ABI selection matches. */
tdep = gdbarch_tdep (arches->gdbarch);
if (tdep && tdep->osabi == osabi)
return arches->gdbarch;
}
tdep = xmalloc (sizeof (struct gdbarch_tdep));
gdbarch = gdbarch_alloc (&info, tdep);
tdep->osabi = osabi;
/* Register info */
ns32k_gdbarch_init_32082 (gdbarch);
set_gdbarch_num_regs (gdbarch, NS32K_SP_REGNUM);
set_gdbarch_num_regs (gdbarch, NS32K_FP_REGNUM);
set_gdbarch_num_regs (gdbarch, NS32K_PC_REGNUM);
set_gdbarch_num_regs (gdbarch, NS32K_PS_REGNUM);
set_gdbarch_register_size (gdbarch, NS32K_REGISTER_SIZE);
set_gdbarch_register_raw_size (gdbarch, ns32k_register_raw_size);
set_gdbarch_max_register_raw_size (gdbarch, NS32K_MAX_REGISTER_RAW_SIZE);
set_gdbarch_register_virtual_size (gdbarch, ns32k_register_virtual_size);
set_gdbarch_max_register_virtual_size (gdbarch,
NS32K_MAX_REGISTER_VIRTUAL_SIZE);
set_gdbarch_register_virtual_type (gdbarch, ns32k_register_virtual_type);
/* Frame and stack info */
set_gdbarch_skip_prologue (gdbarch, umax_skip_prologue);
set_gdbarch_saved_pc_after_call (gdbarch, ns32k_saved_pc_after_call);
set_gdbarch_frame_num_args (gdbarch, umax_frame_num_args);
set_gdbarch_frameless_function_invocation (gdbarch,
generic_frameless_function_invocation_not);
set_gdbarch_frame_chain (gdbarch, ns32k_frame_chain);
set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
set_gdbarch_frame_saved_pc (gdbarch, ns32k_frame_saved_pc);
set_gdbarch_frame_args_address (gdbarch, ns32k_frame_args_address);
set_gdbarch_frame_locals_address (gdbarch, ns32k_frame_locals_address);
set_gdbarch_frame_init_saved_regs (gdbarch, ns32k_frame_init_saved_regs);
set_gdbarch_frame_args_skip (gdbarch, 8);
set_gdbarch_get_saved_register (gdbarch, ns32k_get_saved_register);
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
/* Return value info */
set_gdbarch_store_struct_return (gdbarch, ns32k_store_struct_return);
set_gdbarch_extract_return_value (gdbarch, ns32k_extract_return_value);
set_gdbarch_store_return_value (gdbarch, ns32k_store_return_value);
set_gdbarch_extract_struct_value_address (gdbarch,
ns32k_extract_struct_value_address);
/* Call dummy info */
set_gdbarch_push_dummy_frame (gdbarch, ns32k_push_dummy_frame);
set_gdbarch_pop_frame (gdbarch, ns32k_pop_frame);
set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
set_gdbarch_call_dummy_p (gdbarch, 1);
set_gdbarch_call_dummy_words (gdbarch, ns32k_call_dummy_words);
set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof_ns32k_call_dummy_words);
set_gdbarch_fix_call_dummy (gdbarch, ns32k_fix_call_dummy);
set_gdbarch_call_dummy_start_offset (gdbarch, 3);
set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 0);
set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_on_stack);
set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
/* Breakpoint info */
set_gdbarch_decr_pc_after_break (gdbarch, 0);
set_gdbarch_breakpoint_from_pc (gdbarch, ns32k_breakpoint_from_pc);
/* Misc info */
set_gdbarch_function_start_offset (gdbarch, 0);
/* Hook in OS ABI-specific overrides, if they have been registered. */
gdbarch_init_osabi (info, gdbarch, osabi);
return (gdbarch);
}
static void
ns32k_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
if (tdep == NULL)
return;
fprintf_unfiltered (file, "ns32k_dump_tdep: OS ABI = %s\n",
gdbarch_osabi_name (tdep->osabi));
}
void void
_initialize_ns32k_tdep (void) _initialize_ns32k_tdep (void)
{ {
gdbarch_register (bfd_arch_ns32k, ns32k_gdbarch_init, ns32k_dump_tdep);
tm_print_insn = print_insn_ns32k; tm_print_insn = print_insn_ns32k;
} }

66
gdb/ns32k-tdep.h Normal file
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@ -0,0 +1,66 @@
/* Target-dependent definitions for GDB on NS32000 systems.
Copyright 1987, 1989, 1991, 1993, 1994, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
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. */
#ifndef NS32K_TDEP_H
#define NS32K_TDEP_H
#include "osabi.h"
/* Register numbers of various important registers.
Note that some of these values are "real" register numbers,
and correspond to the general registers of the machine,
and some are "phony" register numbers which are too large
to be actual register numbers as far as the user is concerned
but do serve to get the desired values when passed to read_register. */
#define NS32K_R0_REGNUM 0 /* General register 0 */
#define NS32K_FP0_REGNUM 8 /* Floating point register 0 */
#define NS32K_SP_REGNUM 16 /* Contains address of top of stack */
#define NS32K_AP_REGNUM NS32K_FP_REGNUM
#define NS32K_FP_REGNUM 17 /* Contains address of executing stack frame */
#define NS32K_PC_REGNUM 18 /* Contains program counter */
#define NS32K_PS_REGNUM 19 /* Contains processor status */
#define NS32K_FPS_REGNUM 20 /* Floating point status register */
#define NS32K_LP0_REGNUM 21 /* Double register 0 (same as FP0) */
#define NS32K_NUM_REGS_32082 25
#define NS32K_REGISTER_BYTES_32082 \
((NS32K_NUM_REGS_32082 - 4) * 4 /* size of general purpose regs */ \
+ 4 * 8 /* size of floating point regs */)
#define NS32K_NUM_REGS_32382 29
#define NS32K_REGISTER_BYTES_32382 \
((NS32K_NUM_REGS_32382 - 4) * 4 /* size of general purpose regs */ \
+ 8 * 8 /* size of floating point regs */)
#define NS32K_REGISTER_SIZE 4
#define NS32K_MAX_REGISTER_RAW_SIZE 8
#define NS32K_MAX_REGISTER_VIRTUAL_SIZE 8
struct gdbarch_tdep
{
enum gdb_osabi osabi;
};
void ns32k_gdbarch_init_32082 (struct gdbarch *);
void ns32k_gdbarch_init_32382 (struct gdbarch *);
#endif /* NS32K_TDEP_H */

70
gdb/ns32knbsd-tdep.c Normal file
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@ -0,0 +1,70 @@
/* Target-dependent code for NS32000 systems running NetBSD.
Copyright 2002 Free Software Foundation, Inc.
Contributed by Wasabi Systems, Inc.
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. */
#include "defs.h"
#include "ns32k-tdep.h"
static int
ns32knbsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
{
if (strcmp (name, "_DYNAMIC") == 0)
return 1;
return 0;
}
static void
ns32knbsd_init_abi_common (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
/* We only support machines with the 32382 FPU. */
ns32k_gdbarch_init_32382 (gdbarch);
}
static void
ns32knbsd_init_abi_aout (struct gdbarch_info info,
struct gdbarch *gdbarch)
{
ns32knbsd_init_abi_common (info, gdbarch);
set_gdbarch_in_solib_call_trampoline (gdbarch,
ns32knbsd_aout_in_solib_call_trampoline);
}
static enum gdb_osabi
ns32knbsd_aout_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "a.out-ns32k-netbsd") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
void
_initialize_ns32knbsd_tdep (void)
{
gdbarch_register_osabi_sniffer (bfd_arch_ns32k, bfd_target_aout_flavour,
ns32knbsd_aout_osabi_sniffer);
gdbarch_register_osabi (bfd_arch_ns32k, GDB_OSABI_NETBSD_AOUT,
ns32knbsd_init_abi_aout);
}