/* Target-specific definition for a Hitachi Super-H.
- Copyright (C) 1993 Free Software Foundation, Inc.
+ Copyright (C) 1993, 2000 Free Software Foundation, Inc.
This file is part of GDB.
/* Contributed by Steve Chamberlain sac@cygnus.com */
-struct frame_info;
-struct frame_saved_regs;
-struct value;
-struct type;
+#define GDB_MULTI_ARCH 1
+
+/* Information that is dependent on the processor variant. */
+struct gdbarch_tdep
+ {
+ int FPUL_REGNUM; /* sh3e, sh4 */
+ int FPSCR_REGNUM; /* sh3e, sh4 */
+ int DSR_REGNUM; /* sh-dsp, sh3-dsp */
+ int FP15_REGNUM; /* sh3e, sh4 */
+ int A0G_REGNUM; /* sh-dsp, sh3-dsp */
+ int A0_REGNUM; /* sh-dsp, sh3-dsp */
+ int A1G_REGNUM; /* sh-dsp, sh3-dsp */
+ int A1_REGNUM; /* sh-dsp, sh3-dsp */
+ int M0_REGNUM; /* sh-dsp, sh3-dsp */
+ int M1_REGNUM; /* sh-dsp, sh3-dsp */
+ int X0_REGNUM; /* sh-dsp, sh3-dsp */
+ int X1_REGNUM; /* sh-dsp, sh3-dsp */
+ int Y0_REGNUM; /* sh-dsp, sh3-dsp */
+ int Y1_REGNUM; /* sh-dsp, sh3-dsp */
+ int MOD_REGNUM; /* sh-dsp, sh3-dsp */
+ int SSR_REGNUM; /* sh3, sh3-dsp, sh3e, sh4 */
+ int SPC_REGNUM; /* sh3, sh3-dsp, sh3e, sh4 */
+ int RS_REGNUM; /* sh-dsp, sh3-dsp */
+ int RE_REGNUM; /* sh-dsp, sh3-dsp */
+ int DR0_REGNUM; /* sh4 */
+ int DR2_REGNUM; /* sh4 */
+ int DR4_REGNUM; /* sh4 */
+ int DR6_REGNUM; /* sh4 */
+ int DR8_REGNUM; /* sh4 */
+ int DR10_REGNUM; /* sh4 */
+ int DR12_REGNUM; /* sh4 */
+ int DR14_REGNUM; /* sh4 */
+ int FV0_REGNUM; /* sh4 */
+ int FV4_REGNUM; /* sh4 */
+ int FV8_REGNUM; /* sh4 */
+ int FV12_REGNUM; /* sh4 */
+ };
+
+/* Registers common to all the SH variants. */
+enum
+ {
+ R0_REGNUM = 0,
+ STRUCT_RETURN_REGNUM = 2,
+ ARG0_REGNUM = 4,
+ ARGLAST_REGNUM = 7,
+ PR_REGNUM = 17,
+ GBR_REGNUM = 18,
+ VBR_REGNUM = 19,
+ MACH_REGNUM = 20,
+ MACL_REGNUM = 21,
+ SR_REGNUM = 22
+ };
+
+/* Define DO_REGISTERS_INFO() to do machine-specific formatting
+ of register dumps. */
+extern void sh_do_registers_info (int regnum, int fpregs);
+#undef DO_REGISTERS_INFO
+#define DO_REGISTERS_INFO(REGNUM, FP) sh_do_registers_info(REGNUM, FP)
+
+#define NUM_REALREGS 59 /* used in remote-e7000.c which is not multiarched. */
+
+#define REGISTER_TYPE long /* used in standalone.c */
+
+#define BIG_REMOTE_BREAKPOINT { 0xc3, 0x20 } /* Used in remote.c */
+#define LITTLE_REMOTE_BREAKPOINT { 0x20, 0xc3 } /* Used in remote.c */
+
+/*#define NOP {0x20, 0x0b}*/ /* Who uses this???*/
-#define GDB_TARGET_IS_SH
-
-#define IEEE_FLOAT (1)
-
-/* Define the bit, byte, and word ordering of the machine. */
-
-#define TARGET_BYTE_ORDER_SELECTABLE
-
-
-/* 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 sh_skip_prologue (CORE_ADDR);
-#define SKIP_PROLOGUE(ip) (sh_skip_prologue (ip))
-
-/* Immediately after a function call, return the saved pc.
- Can't always go through the frames for this because on some machines
- the new frame is not set up until the new function executes
- some instructions.
-
- The return address is the value saved in the PR register + 4 */
-
-#define SAVED_PC_AFTER_CALL(frame) (ADDR_BITS_REMOVE(read_register(PR_REGNUM)))
-
-/* Stack grows downward. */
-
-#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
-
-/* Illegal instruction - used by the simulator for breakpoint
- detection */
-
-#define BREAKPOINT {0xc3, 0xc3} /* 0xc3c3 is trapa #c3, and it works in big
- and little endian modes */
-
-#define BIG_REMOTE_BREAKPOINT { 0xc3, 0x20 }
-#define LITTLE_REMOTE_BREAKPOINT { 0x20, 0xc3 }
-
-/* 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 0
-
-/* Say how long registers are. */
-#define REGISTER_TYPE long
-
-/* Say how much memory is needed to store a copy of the register set */
-#define REGISTER_BYTES (NUM_REGS*4)
-
-/* Index within `registers' of the first byte of the space for
- register N. */
-
-#define REGISTER_BYTE(N) ((N)*4)
-
-/* Number of bytes of storage in the actual machine representation
- for register N. */
-
-#define REGISTER_RAW_SIZE(N) 4
-
-#define REGISTER_VIRTUAL_SIZE(N) 4
-
-/* Largest value REGISTER_RAW_SIZE can have. */
-
-#define MAX_REGISTER_RAW_SIZE 4
-
-/* Largest value REGISTER_VIRTUAL_SIZE can have. */
-
-#define MAX_REGISTER_VIRTUAL_SIZE 4
-
-/* Return the GDB type object for the "standard" data type
- of data in register N. */
-
-#define REGISTER_VIRTUAL_TYPE(N) \
- (((((N) >= FP0_REGNUM && (N) <= FP15_REGNUM) \
- || (N) == FPUL_REGNUM) \
- && TARGET_ARCHITECTURE->mach != bfd_mach_sh_dsp \
- && TARGET_ARCHITECTURE->mach != bfd_mach_sh3_dsp) \
- ? builtin_type_float : builtin_type_int)
-
-/* Initializer for an array of names of registers.
- Entries beyond the first NUM_REGS are ignored. */
-
-extern char **sh_register_names;
-#define REGISTER_NAME(i) sh_register_names[i]
-
-#define NUM_REGS 59
-
-/* 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 STRUCT_RETURN_REGNUM 2
-#define ARG0_REGNUM 4
-#define ARGLAST_REGNUM 7
-#define FP_REGNUM 14
-#define SP_REGNUM 15
-#define PC_REGNUM 16
-#define PR_REGNUM 17
-#define GBR_REGNUM 18
-#define VBR_REGNUM 19
-#define MACH_REGNUM 20
-#define MACL_REGNUM 21
-#define SR_REGNUM 22
-#define FPUL_REGNUM 23
-#define FPSCR_REGNUM 24
-#define DSR_REGNUM 24
-#define FP0_REGNUM 25
-#define FP15_REGNUM 40
-#define A0G_REGNUM 25
-#define A0_REGNUM 26
-#define A1G_REGNUM 27
-#define A1_REGNUM 28
-#define M0_REGNUM 29
-#define M1_REGNUM 30
-#define X0_REGNUM 31
-#define X1_REGNUM 32
-#define Y0_REGNUM 33
-#define Y1_REGNUM 34
-#define MOD_REGNUM 40
-#define SSR_REGNUM 41
-#define SPC_REGNUM 42
-#define R0B0_REGNUM 43
-#define R0B1_REGNUM 51
-#define RS_REGNUM 43
-#define RE_REGNUM 44
-#define R0B_REGNUM 51
-
-#define NUM_REALREGS 59
-
-/* 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 R0 */
-
-#define STORE_STRUCT_RETURN(ADDR, SP) \
- { write_register (STRUCT_RETURN_REGNUM, (ADDR)); }
-
-extern use_struct_convention_fn sh_use_struct_convention;
-#define USE_STRUCT_CONVENTION(gcc_p, type) sh_use_struct_convention (gcc_p, type)
-
-/* 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. */
-
-extern void sh_extract_return_value (struct type *, void *, void *);
-#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
- sh_extract_return_value (TYPE, REGBUF, VALBUF)
-
-/* Write into appropriate registers a function return value
- of type TYPE, given in virtual format.
-
- Things always get returned in R0/R1 */
-
-#define STORE_RETURN_VALUE(TYPE,VALBUF) \
- write_register_bytes (REGISTER_BYTE(0), 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) \
- extract_address (REGBUF, REGISTER_RAW_SIZE (0))
-
-
-/* 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; \
- int leaf_function; \
- int f_offset;
-
-#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
- sh_init_extra_frame_info(fromleaf, fi)
-extern void sh_init_extra_frame_info (int, struct frame_info *);
-
-/* 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_look_for_prologue(FI))
-
-#define FRAME_SAVED_PC(FRAME) ((FRAME)->return_pc)
-#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
-#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
-
-/* 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(fi) (-1)
-
-/* Return number of bytes at start of arglist that are not really args. */
-
-#define FRAME_ARGS_SKIP 0
-
-extern void sh_frame_find_saved_regs (struct frame_info *fi,
- struct frame_saved_regs *fsr);
-
-/* 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) \
- sh_frame_find_saved_regs(frame_info, &(frame_saved_regs))
-
-typedef unsigned short INSN_WORD;
-
-extern CORE_ADDR sh_push_arguments (int nargs,
- struct value **args,
- CORE_ADDR sp,
- unsigned char struct_return,
- CORE_ADDR struct_addr);
-
-#define USE_GENERIC_DUMMY_FRAMES 1
-#define CALL_DUMMY {0}
-#define CALL_DUMMY_LENGTH (0)
-#define CALL_DUMMY_START_OFFSET (0)
-#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
-#define FIX_CALL_DUMMY(DUMMY, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP)
-#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
-#define CALL_DUMMY_ADDRESS() entry_point_address ()
-extern CORE_ADDR sh_push_return_address (CORE_ADDR, CORE_ADDR);
-#define PUSH_RETURN_ADDRESS(PC, SP) sh_push_return_address (PC, SP)
-
-
-extern CORE_ADDR sh_frame_chain (struct frame_info *);
-#define FRAME_CHAIN(FRAME) sh_frame_chain(FRAME)
-#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
-#define FRAME_CHAIN_VALID(FP, FRAME) generic_file_frame_chain_valid (FP, FRAME)
-#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
-#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
- (sh_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
-
-/* override the standard get_saved_register function with
- one that takes account of generic CALL_DUMMY frames */
-#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
- generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
-
-/* Discard from the stack the innermost frame, restoring all saved
- registers. */
-
-extern void sh_pop_frame (void);
-#define POP_FRAME sh_pop_frame();
-
-#define NOP {0x20, 0x0b}
-
-#define REGISTER_SIZE 4
-
-#define COERCE_FLOAT_TO_DOUBLE(formal, actual) (1)
-
-#define BELIEVE_PCC_PROMOTION 1
-
-/* Need this for WinGDB. See gdb/mswin/{regdoc.h, gdbwin.c, gui.cpp}. */
-#define TARGET_SH
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