/* Target-specific definition for the Mitsubishi D10V
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996,1999 Free Software Foundation, Inc.
-This file is part of GDB.
+ 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 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.
+ 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. */
+ 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. */
/* Contributed by Martin Hunt, hunt@cygnus.com */
-#define GDB_TARGET_IS_D10V
+#define GDB_MULTI_ARCH 1
-/* Define the bit, byte, and word ordering of the machine. */
-
-#define TARGET_BYTE_ORDER BIG_ENDIAN
-
-/* Offset from address of function to start of its code.
- Zero on most machines. */
-
-#define FUNCTION_START_OFFSET 0
-
-/* these are the addresses the D10V-EVA board maps data */
-/* and instruction memory to. */
-
-#define DMEM_START 0x2000000
-#define IMEM_START 0x1000000
-#define STACK_START 0x2007ffe
-
-#ifdef __STDC__ /* Forward decls for prototypes */
-struct frame_info;
-struct frame_saved_regs;
-struct type;
-struct value;
-#endif
-
-/* Advance PC across any function entry prologue instructions
- to reach some "real" code. */
-
-extern CORE_ADDR d10v_skip_prologue ();
-#define SKIP_PROLOGUE(ip) \
- {(ip) = d10v_skip_prologue(ip);}
-
-
-/* Stack grows downward. */
-#define INNER_THAN <
-
-/* for a breakpoint, use "dbt || nop" */
-#define BREAKPOINT {0x2f, 0x90, 0x5e, 0x00}
-
-/* If your kernel resets the pc after the trap happens you may need to
- define this before including this file. */
-#define DECR_PC_AFTER_BREAK 4
-
-#define REGISTER_NAMES \
-{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
- "r8", "r9", "r10","r11","r12", "r13", "r14","sp",\
- "psw","bpsw","pc","bpc", "cr4", "cr5", "cr6", "rpt_c",\
- "rpt_s","rpt_e", "mod_s", "mod_e", "cr12", "cr13", "iba", "cr15",\
- "imap0","imap1","dmap","a0", "a1"\
- }
-
-#define NUM_REGS 37
-
-/* 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
-#define LR_REGNUM 13
-#define SP_REGNUM 15
-#define FP_REGNUM 11
-#define PC_REGNUM 18
-#define PSW_REGNUM 16
-#define IMAP0_REGNUM 32
-#define IMAP1_REGNUM 33
-#define DMAP_REGNUM 34
-#define A0_REGNUM 35
-
-/* Say how much memory is needed to store a copy of the register set */
-#define REGISTER_BYTES ((NUM_REGS-2)*2+16)
-
-/* Index within `registers' of the first byte of the space for
- register N. */
-
-#define REGISTER_BYTE(N) \
-( ((N) > A0_REGNUM) ? ( ((N)-A0_REGNUM)*8 + A0_REGNUM*2 ) : ((N) * 2) )
-
-/* Number of bytes of storage in the actual machine representation
- for register N. */
-
-#define REGISTER_RAW_SIZE(N) ( ((N) >= A0_REGNUM) ? 8 : 2 )
-
-/* Number of bytes of storage in the program's representation
- for register N. */
-#define REGISTER_VIRTUAL_SIZE(N) ( ((N) >= A0_REGNUM) ? 8 : ( ((N) == PC_REGNUM || (N) == SP_REGNUM) ? 4 : 2 ))
-
-/* 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
-
-/* Return the GDB type object for the "standard" data type
- of data in register N. */
-
-#define REGISTER_VIRTUAL_TYPE(N) \
-( ((N) < A0_REGNUM ) ? ((N) == PC_REGNUM || (N) == SP_REGNUM ? builtin_type_long : builtin_type_short) : builtin_type_long_long)
-
-
-/* convert $pc and $sp to/from virtual addresses */
-#define REGISTER_CONVERTIBLE(N) ((N) == PC_REGNUM || (N) == SP_REGNUM)
-#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
-{ \
- ULONGEST x = extract_unsigned_integer ((FROM), REGISTER_RAW_SIZE (REGNUM)); \
- if (REGNUM == PC_REGNUM) x = (x << 2) | IMEM_START; \
- else x |= DMEM_START; \
- store_unsigned_integer ((TO), TYPE_LENGTH(TYPE), x); \
-}
-#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
-{ \
- ULONGEST x = extract_unsigned_integer ((FROM), TYPE_LENGTH(TYPE)); \
- x &= 0x3ffff; \
- if (REGNUM == PC_REGNUM) x >>= 2; \
- store_unsigned_integer ((TO), 2, x); \
-}
-
-#define D10V_MAKE_DADDR(x) ( (x) & 0x3000000 ? (x) : ((x) | DMEM_START))
-#define D10V_MAKE_IADDR(x) ( (x) & 0x3000000 ? (x) : (((x) << 2) | IMEM_START))
-
-/* Store the address of the place in which to copy the structure the
- subroutine will return. This is called from call_function.
-
- We store structs through a pointer passed in R2 */
-
-#define STORE_STRUCT_RETURN(ADDR, SP) \
- { write_register (2, (ADDR)); }
-
-
-/* Write into appropriate registers a function return value
- of type TYPE, given in virtual format.
-
- Things always get returned in R2/R3 */
-
-#define STORE_RETURN_VALUE(TYPE,VALBUF) \
- write_register_bytes (REGISTER_BYTE(2), VALBUF, TYPE_LENGTH (TYPE))
-
-
-/* Extract from an array REGBUF containing the (raw) register state
- the address in which a function should return its structure value,
- as a CORE_ADDR (or an expression that can be used as one). */
-
-#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(CORE_ADDR *)(REGBUF))
-\f
-
-/* Define other aspects of the stack frame.
- we keep a copy of the worked out return pc lying around, since it
- is a useful bit of info */
-
-#define EXTRA_FRAME_INFO \
- CORE_ADDR return_pc; \
- CORE_ADDR dummy; \
- int frameless; \
- int size;
-
-#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
- d10v_init_extra_frame_info(fromleaf, fi)
-
-extern void d10v_init_extra_frame_info PARAMS (( int fromleaf, struct frame_info *fi ));
-
-/* 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. */
-
-#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
- (FRAMELESS) = frameless_look_for_prologue(FI)
-
-#define FRAME_CHAIN(FRAME) d10v_frame_chain(FRAME)
-#define FRAME_CHAIN_VALID(chain,frame) \
- ((chain) != 0 && (frame) != 0 && (frame)->pc > IMEM_START)
-#define FRAME_SAVED_PC(FRAME) ((FRAME)->return_pc)
-#define FRAME_ARGS_ADDRESS(fi) (fi)->frame
-#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame
-
-/* Immediately after a function call, return the saved pc. We can't */
-/* use frame->return_pc beause that is determined by reading R13 off the */
-/*stack and that may not be written yet. */
-
-#define SAVED_PC_AFTER_CALL(frame) ((read_register(LR_REGNUM) << 2) | IMEM_START)
-
-/* Set VAL to the number of args passed to frame described by FI.
- Can set VAL to -1, meaning no way to tell. */
-/* We can't tell how many args there are */
-
-#define FRAME_NUM_ARGS(val,fi) (val = -1)
-
-/* Return number of bytes at start of arglist that are not really args. */
-
-#define FRAME_ARGS_SKIP 0
-
-
-/* Put here the code to store, into a struct frame_saved_regs,
- the addresses of the saved registers of frame described 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 return for it IS the sp for the next frame. */
-
-#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
- d10v_frame_find_saved_regs(frame_info, &(frame_saved_regs))
-
-extern void d10v_frame_find_saved_regs PARAMS ((struct frame_info *, struct frame_saved_regs *));
-
-#define NAMES_HAVE_UNDERSCORE
-
-/*
-DUMMY FRAMES. Need these to support inferior function calls. They work
-like this on D10V: First we set a breakpoint at 0 or __start. Then we push
-all the registers onto the stack. Then put the function arguments in the proper
-registers and set r13 to our breakpoint address. Finally call the function directly.
-When it hits the breakpoint, clear the break point and pop the old register contents
-off the stack.
-*/
-
-#define CALL_DUMMY { 0 }
-#define PUSH_DUMMY_FRAME
-#define CALL_DUMMY_START_OFFSET 0
-#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
-#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
-
-extern CORE_ADDR d10v_call_dummy_address PARAMS ((void));
-#define CALL_DUMMY_ADDRESS() d10v_call_dummy_address()
-
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-sp = d10v_fix_call_dummy (dummyname, pc, fun, nargs, args, type, gcc_p)
-
-#define PC_IN_CALL_DUMMY(pc, sp, frame_address) ( pc == IMEM_START + 4 )
-
-extern CORE_ADDR d10v_fix_call_dummy PARAMS ((char *, CORE_ADDR, CORE_ADDR,
- int, struct value **,
- struct type *, int));
-#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
- sp = d10v_push_arguments((nargs), (args), (sp), (struct_return), (struct_addr))
-extern CORE_ADDR d10v_push_arguments PARAMS ((int, struct value **, CORE_ADDR, int, CORE_ADDR));
-
-
-/* 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. */
-
-#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
-d10v_extract_return_value(TYPE, REGBUF, VALBUF)
- extern void
-d10v_extract_return_value PARAMS ((struct type *, char *, char *));
-
-
-/* Discard from the stack the innermost frame,
- restoring all saved registers. */
-#define POP_FRAME d10v_pop_frame();
-extern void d10v_pop_frame PARAMS((void));
-
-#define REGISTER_SIZE 2
-
-#ifdef CC_HAS_LONG_LONG
-# define LONGEST long long
-#else
-# define LONGEST long
-#endif
-#define ULONGEST unsigned LONGEST
-
-void d10v_write_pc PARAMS ((CORE_ADDR val, int pid));
-CORE_ADDR d10v_read_pc PARAMS ((int pid));
-void d10v_write_sp PARAMS ((CORE_ADDR val));
-CORE_ADDR d10v_read_sp PARAMS ((void));
-void d10v_write_fp PARAMS ((CORE_ADDR val));
-CORE_ADDR d10v_read_fp PARAMS ((void));
-
-#define TARGET_READ_PC(pid) d10v_read_pc (pid)
-#define TARGET_WRITE_PC(val,pid) d10v_write_pc (val, pid)
-#define TARGET_READ_FP() d10v_read_fp ()
-#define TARGET_WRITE_FP(val) d10v_write_fp (val)
-#define TARGET_READ_SP() d10v_read_sp ()
-#define TARGET_WRITE_SP(val) d10v_write_sp (val)
-
-/* Number of bits in the appropriate type */
-#define TARGET_INT_BIT (2 * TARGET_CHAR_BIT)
-#define TARGET_PTR_BIT (4 * TARGET_CHAR_BIT)
-#define TARGET_DOUBLE_BIT (4 * TARGET_CHAR_BIT)
-#define TARGET_LONG_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
+extern int d10v_register_sim_regno (int reg);
+#define REGISTER_SIM_REGNO(NR) d10v_register_sim_regno((NR))
projects / thirdparty / binutils-gdb.git / blobdiff