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- This comparison shows the changes necessary to convert path
/or1k/trunk/gdb-5.0/gdb/config/tic80
- from Rev 107 to Rev 1765
- ↔ Reverse comparison
Rev 107 → Rev 1765
/tic80.mt
0,0 → 1,7
# Target: TI TMS320C80 (MVP) processor |
TDEPFILES= tic80-tdep.o |
TM_FILE= tm-tic80.h |
SIM_OBS = remote-sim.o |
SIM = ../sim/tic80/libsim.a |
GDBSERVER_DEPFILES= low-sim.o |
GDBSERVER_LIBS = ../../sim/tic80/libsim.a ../../bfd/libbfd.a ../../libiberty/libiberty.a -lm |
/tm-tic80.h
0,0 → 1,252
/* Parameters for execution on a TI TMS320C80 (MVP) processor. |
Copyright 1997 |
Free Software Foundation, Inc. |
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This file is part of GDB. |
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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. |
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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. */ |
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#ifndef TM_TIC80_H |
#define TM_TIC80_H |
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/* Forward declare structs used in prototypes */ |
struct frame_info; |
struct type; |
struct value; |
struct symbol; |
struct frame_saved_regs; |
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#define TARGET_BYTE_ORDER LITTLE_ENDIAN |
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#define NUM_REGS 38 |
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#define REGISTER_NAMES \ |
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ |
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ |
"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ |
"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \ |
"pc", "npc", \ |
"a0", "a1", "a2", "a3", \ |
} |
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/* Various dedicated register numbers |
FIXME: Shadow updates in sim/tic80/sim-calls.c */ |
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#define SP_REGNUM 1 /* Contains address of top of stack */ |
#define ARG0_REGNUM 2 /* Contains argument 1 (r3 has high word) */ |
#define RET_REGNUM 2 /* Contains function return value */ |
#define ARGLAST_REGNUM 12 /* Contains argument 6 (r13 has high word) */ |
#define FP_REGNUM 30 /* Contains address of executing stack frame */ |
#define LR_REGNUM 31 /* Contains address of caller (link register) */ |
#define PC_REGNUM 32 /* Contains program counter (FIXME?) */ |
#define NPC_REGNUM 33 /* Contains the next program counter (FIXME?) */ |
#define A0_REGNUM 34 /* Accumulator register 0 */ |
#define A3_REGNUM 37 /* Accumulator register 1 */ |
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#define R0_REGNUM 0 /* General Purpose Register 0 - for sim */ |
#define Rn_REGNUM 31 /* Last General Purpose Register - for sim */ |
#define An_REGNUM A3_REGNUM /* Last Accumulator register - for sim */ |
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/* Total amount of space needed to store our copies of the machine's |
register state, the array `registers'. */ |
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#define REGISTER_BYTES (((NUM_REGS - 4) * 4) + (4 * 8)) |
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/* Index within `registers' of the first byte of the space for |
register N. */ |
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#define REGISTER_BYTE(N) \ |
(((N) >= A0_REGNUM) ? (((N) - A0_REGNUM) * 8 + A0_REGNUM * 4) : ((N) * 4)) |
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/* Most registers are 4 bytes */ |
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#define REGISTER_SIZE 4 |
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/* Some registers are 8 bytes. */ |
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#define REGISTER_RAW_SIZE(N) \ |
(((N) >= A0_REGNUM) ? 8 : 4) |
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/* Largest value REGISTER_RAW_SIZE can have. */ |
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#define MAX_REGISTER_RAW_SIZE (8) |
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/* All regs are 4 bytes. */ |
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#define REGISTER_VIRTUAL_SIZE(N) (REGISTER_RAW_SIZE(N)) |
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/* Largest value REGISTER_VIRTUAL_SIZE can have. */ |
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#define MAX_REGISTER_VIRTUAL_SIZE (MAX_REGISTER_RAW_SIZE) |
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/* Return the GDB type object for the "standard" data type |
of data in register N. */ |
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#define REGISTER_VIRTUAL_TYPE(N) /* FIXME? */ \ |
(((N) >= A0_REGNUM) ? builtin_type_float : builtin_type_int) |
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/* Offset from address of function to start of its code. |
Zero on most machines. */ |
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#define FUNCTION_START_OFFSET 0 |
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/* Stack grows downward. */ |
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#define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) |
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/* Sequence of bytes for breakpoint instruction. |
This is padded out to the size of a machine word. */ |
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#define BREAKPOINT {0x49, 0x80, 0x00, 0x00} /* FIXME! */ |
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/* Amount PC must be decremented by after a breakpoint. |
This is often the number of bytes in BREAKPOINT |
but not always. */ |
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#define DECR_PC_AFTER_BREAK 0 /* FIXME! */ |
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/* Discard from the stack the innermost frame, restoring all registers. */ |
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#define POP_FRAME tic80_pop_frame(get_current_frame ()) |
extern struct frame_info *tic80_pop_frame PARAMS ((struct frame_info * frame)); |
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/* Return number of bytes at start of arglist that are not really args. */ |
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#define FRAME_ARGS_SKIP 0 |
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/* 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 */ |
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#define FRAME_NUM_ARGS(fi) (-1) |
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#define FRAME_ARGS_SKIP 0 |
#define FRAME_ARGS_ADDRESS(fi) (fi)->frame |
#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame |
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/* Define other aspects of the stack frame. |
We keep the offsets of all saved registers, 'cause we need 'em a lot! |
We also keep the current size of the stack frame, and the offset of |
the frame pointer from the stack pointer (for frameless functions, and |
when we're still in the prologue of a function with a frame) */ |
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#define EXTRA_FRAME_INFO \ |
struct frame_saved_regs fsr; \ |
int framesize; \ |
int frameoffset; \ |
int framereg; |
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extern void tic80_init_extra_frame_info PARAMS ((struct frame_info * fi)); |
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) tic80_init_extra_frame_info (fi) |
#define INIT_FRAME_PC /* Not necessary */ |
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/* 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. */ |
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#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ |
tic80_frame_find_saved_regs(frame_info, &(frame_saved_regs)) |
extern void tic80_frame_find_saved_regs PARAMS ((struct frame_info *, struct frame_saved_regs *)); |
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/* Advance PC across any function entry prologue instructions |
to reach some "real" code. */ |
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#define SKIP_PROLOGUE(pc) (tic80_skip_prologue (pc)) |
extern CORE_ADDR tic80_skip_prologue PARAMS ((CORE_ADDR pc)); |
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/* 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. */ |
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#define SAVED_PC_AFTER_CALL(frame) read_register (LR_REGNUM) |
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/* Describe the pointer in each stack frame to the previous stack frame |
(its caller). */ |
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/* FRAME_CHAIN takes a frame's nominal address |
and produces the frame's chain-pointer. */ |
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#define FRAME_CHAIN(thisframe) (CORE_ADDR) tic80_frame_chain (thisframe) |
extern CORE_ADDR tic80_frame_chain PARAMS ((struct frame_info *)); |
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#define FRAME_SAVED_PC(FRAME) tic80_frame_saved_pc (FRAME) |
extern CORE_ADDR tic80_frame_saved_pc PARAMS ((struct frame_info *)); |
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/* Store the address of the place in which to copy the structure the |
subroutine will return. This is called from call_function. |
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We store structs through a pointer passed in R2 */ |
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#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \ |
write_register (ARG0_REGNUM, STRUCT_ADDR) |
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/* 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. */ |
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ |
memcpy ((VALBUF), \ |
(char *)(REGBUF) + REGISTER_BYTE (RET_REGNUM) + \ |
((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \ |
TYPE_LENGTH (TYPE)) |
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/* Write into appropriate registers a function return value |
of type TYPE, given in virtual format. */ |
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#define STORE_RETURN_VALUE(TYPE,VALBUF) \ |
write_register_bytes(REGISTER_BYTE (RET_REGNUM) + \ |
((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\ |
(VALBUF), TYPE_LENGTH (TYPE)); |
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/* PUSH_ARGUMENTS */ |
extern CORE_ADDR tic80_push_arguments PARAMS ((int nargs, |
struct value ** args, |
CORE_ADDR sp, |
unsigned char struct_return, |
CORE_ADDR struct_addr)); |
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#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ |
(tic80_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)) |
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/* PUSH_RETURN_ADDRESS */ |
extern CORE_ADDR tic80_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); |
#define PUSH_RETURN_ADDRESS(PC, SP) tic80_push_return_address (PC, SP) |
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/* 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) |
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#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(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP) |
#define CALL_DUMMY_LOCATION AT_ENTRY_POINT |
#define CALL_DUMMY_ADDRESS() entry_point_address () |
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/* generic dummy frame stuff */ |
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#define PUSH_DUMMY_FRAME generic_push_dummy_frame () |
#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP) |
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#endif /* TM_TIC80_H */ |