X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Ftm-delta88.h;h=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hb=08a63c2c4ab3b023a5079464c41f3f1162cb4b4f;hp=c0ffb4ceac24cff52dc91df9c9ff0d74ff3aaf41;hpb=ecb1b520dee9279c9ab81a0352122f88619a90d4;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/tm-delta88.h b/gdb/tm-delta88.h index c0ffb4ceac..e69de29bb2 100644 --- a/gdb/tm-delta88.h +++ b/gdb/tm-delta88.h @@ -1,478 +0,0 @@ -/* Copyright (C) 1986, 1987, 1988, 1989, 1990 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -/* g++ support is not yet included. */ - -#include "tdesc.h" - - -#define TARGET_BYTE_ORDER BIG_ENDIAN - -#define EXTRA_SYMTAB_INFO int coffsem; - -/* This is not a CREATE_INFERIOR_HOOK because it also applies to - remote debugging. */ -#define START_INFERIOR_HOOK() \ - { \ - extern int safe_to_init_tdesc_context; \ - extern dc_handle_t tdesc_handle; \ - \ - safe_to_init_tdesc_context = 0; \ - if (tdesc_handle) \ - { \ - dc_terminate (tdesc_handle); \ - tdesc_handle = 0; \ - } \ - } - -dc_dcontext_t get_prev_context (); -extern int stack_error; - -#define EXTRA_FRAME_INFO dc_dcontext_t frame_context; -#define INIT_EXTRA_FRAME_INFO(fromleaf, fci) \ - { \ - if (fci->next_frame != NULL) \ - { \ - extern jmp_buf stack_jmp; \ - struct frame_info *next_frame = fci->next; \ - /* The call to get_prev_context */ \ - /* will update current_context for us. */ \ - stack_error = 1; \ - if (!setjmp (stack_jmp)) \ - { \ - fci->frame_context \ - = get_prev_context (next_frame->frame_context); \ - stack_error = 0; \ - } \ - else \ - { \ - stack_error = 0; \ - next_frame->prev = 0; \ - return 0; \ - } \ - if (!fci->frame_context) \ - { \ - next_frame->prev = 0; \ - return 0; \ - } \ - } \ - else \ - { \ - /* We are creating an arbitrary frame */ \ - /* (i.e. we are in create_new_frame). */ \ - extern dc_dcontext_t current_context; \ - \ - fci->frame_context = current_context; \ - } \ - } - -#define INIT_FRAME_PC(fromleaf, prev) \ - { \ - prev->pc = dc_location (prev->frame_context); \ - prev->frame = get_frame_base (prev->pc); \ - } - -#define IEEE_FLOAT - -/* Text Description (TDESC) is used by m88k to maintain stack & reg info */ - -#define TDESC - -/* Define this if the C compiler puts an underscore at the front - of external names before giving them to the linker. */ - -#define NAMES_HAVE_UNDERSCORE - -/* Hook for read_relative_register_raw_bytes */ - -#define READ_RELATIVE_REGISTER_RAW_BYTES - -/* 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. */ - -#define SKIP_PROLOGUE(frompc) 0 - -/* The m88k kernel aligns all instructions on 4-byte boundaries. The - kernel also uses the least significant two bits for its own hocus - pocus. When gdb receives an address from the kernel, it needs to - preserve those right-most two bits, but gdb also needs to be careful - to realize that those two bits are not really a part of the address - of an instruction. Shrug. */ - -#define ADDR_BITS_REMOVE(addr) ((addr) & ~3) -#define ADDR_BITS_SET(addr) (((addr) | 0x00000002) - 4) - -/* 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. */ - -#define SAVED_PC_AFTER_CALL(frame) \ - (read_register (SRP_REGNUM) & (~3)) - -/* Address of end of stack space. */ - -#define STACK_END_ADDR 0xF0000000 - -/* Stack grows downward. */ - -#define INNER_THAN < - -/* Sequence of bytes for breakpoint instruction. */ - -/* instruction 0xF000D1FF is 'tb0 0,r0,511' - If Bit bit 0 of r0 is clear (always true), - initiate exception processing (trap). - */ -#define BREAKPOINT {0xF0, 0x00, 0xD1, 0xFF} - -/* Address of end of stack space. */ - -#define STACK_END_ADDR 0xF0000000 - -/* Stack grows downward. */ - -#define INNER_THAN < - -/* Sequence of bytes for breakpoint instruction. */ - -/* instruction 0xF000D1FF is 'tb0 0,r0,511' - If Bit bit 0 of r0 is clear (always true), - initiate exception processing (trap). - */ -#define BREAKPOINT {0xF0, 0x00, 0xD1, 0xFF} - -/* 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 - -/* Nonzero if instruction at PC is a return instruction. */ -/* 'jmp r1' or 'jmp.n r1' is used to return from a subroutine. */ - -#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 2) == 0xF800) - -/* Return 1 if P points to an invalid floating point value. - LEN is the length in bytes -- not relevant on the 386. */ - -#define INVALID_FLOAT(p, len) IEEE_isNAN(p,len) - -/* Say how long (ordinary) registers are. */ - -#define REGISTER_TYPE long - -/* Number of machine registers */ - -#define NUM_REGS 38 - -/* Initializer for an array of names of registers. - There should be NUM_REGS strings in this initializer. */ - -#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",\ - "psr",\ - "fpsr",\ - "fpcr",\ - "sxip",\ - "snip",\ - "sfip",\ - "vbr",\ - "dmt0",\ - "dmd0",\ - "dma0",\ - "dmt1",\ - "dmd1",\ - "dma1",\ - "dmt2",\ - "dmd2",\ - "dma2",\ - "sr0",\ - "sr1",\ - "sr2",\ - "sr3",\ - "fpecr",\ - "fphs1",\ - "fpls1",\ - "fphs2",\ - "fpls2",\ - "fppt",\ - "fprh",\ - "fprl",\ - "fpit",\ - "fpsr",\ - "fpcr",\ - }; - - -/* 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 SRP_REGNUM 1 /* Contains subroutine return pointer */ -#define RV_REGNUM 2 /* Contains simple return values */ -#define SRA_REGNUM 12 /* Contains address of struct return values */ -#define FP_REGNUM 30 /* Contains address of executing stack frame */ -#define SP_REGNUM 31 /* Contains address of top of stack */ -#define SXIP_REGNUM 35 /* Contains Shadow Execute Instruction Pointer */ -#define SNIP_REGNUM 36 /* Contains Shadow Next Instruction Pointer */ -#define PC_REGNUM SXIP_REGNUM /* Program Counter */ -#define NPC_REGNUM SNIP_REGNUM /* Next Program Counter */ -#define PSR_REGNUM 32 /* Processor Status Register */ -#define FPSR_REGNUM 33 /* Floating Point Status Register */ -#define FPCR_REGNUM 34 /* Floating Point Control Register */ -#define SFIP_REGNUM 37 /* Contains Shadow Fetched Intruction pointer */ -#define NNPC_REGNUM SFIP_REGNUM /* Next Next Program Counter */ - -/* PSR status bit definitions. */ - -#define PSR_MODE 0x80000000 -#define PSR_BYTE_ORDER 0x40000000 -#define PSR_SERIAL_MODE 0x20000000 -#define PSR_CARRY 0x10000000 -#define PSR_SFU_DISABLE 0x000003f0 -#define PSR_SFU1_DISABLE 0x00000008 -#define PSR_MXM 0x00000004 -#define PSR_IND 0x00000002 -#define PSR_SFRZ 0x00000001 - -/* BCS requires that the SXIP_REGNUM (or PC_REGNUM) contain the address - of the next instr to be executed when a breakpoint occurs. Because - the kernel gets the next instr (SNIP_REGNUM), the instr in SNIP needs - to be put back into SFIP, and the instr in SXIP should be shifted - to SNIP */ - -/* Are you sitting down? It turns out that the 88K BCS (binary compatibility - standard) folks originally felt that the debugger should be responsible - for backing up the IPs, not the kernel (as is usually done). Well, they - have reversed their decision, and in future releases our kernel will be - handling the backing up of the IPs. So, eventually, we won't need to - do the SHIFT_INST_REGS stuff. But, for now, since there are 88K systems out - there that do need the debugger to do the IP shifting, and since there - will be systems where the kernel does the shifting, the code is a little - more complex than perhaps it needs to be (we still go inside SHIFT_INST_REGS, - and if the shifting hasn't occurred then gdb goes ahead and shifts). */ - -#define SHIFT_INST_REGS - -/* Total amount of space needed to store our copies of the machine's - register state, the array `registers'. */ - -#define REGISTER_BYTES (NUM_REGS * sizeof(REGISTER_TYPE)) - -/* Index within `registers' of the first byte of the space for - register N. */ - -#define REGISTER_BYTE(N) ((N)*sizeof(REGISTER_TYPE)) - -/* Number of bytes of storage in the actual machine representation - for register N. */ - -#define REGISTER_RAW_SIZE(N) (sizeof(REGISTER_TYPE)) - -/* Number of bytes of storage in the program's representation - for register N. */ - -#define REGISTER_VIRTUAL_SIZE(N) (sizeof(REGISTER_TYPE)) - -/* Largest value REGISTER_RAW_SIZE can have. */ - -#define MAX_REGISTER_RAW_SIZE (sizeof(REGISTER_TYPE)) - -/* Largest value REGISTER_VIRTUAL_SIZE can have. -/* Are FPS1, FPS2, FPR "virtual" regisers? */ - -#define MAX_REGISTER_VIRTUAL_SIZE (sizeof(REGISTER_TYPE)) - -/* Nonzero if register N requires conversion - from raw format to virtual format. */ - -#define REGISTER_CONVERTIBLE(N) (0) - -/* Convert data from raw format for register REGNUM - to virtual format for register REGNUM. */ - -#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) {bcopy ((FROM), (TO), (sizeof(REGISTER_TYPE)));} - -/* Convert data from virtual format for register REGNUM - to raw format for register REGNUM. */ - -#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) {bcopy ((FROM), (TO), (sizeof(REGISTER_TYPE)));} - -/* Return the GDB type object for the "standard" data type - of data in register N. */ - -#define REGISTER_VIRTUAL_TYPE(N) (builtin_type_int) - -/* The 88k call/return conventions call for "small" values to be returned - into consecutive registers starting from r2. */ - -#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ - bcopy (&(((char *)REGBUF)[REGISTER_BYTE(RV_REGNUM)]), (VALBUF), TYPE_LENGTH (TYPE)) - -#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)(REGBUF)) - -/* Write into appropriate registers a function return value - of type TYPE, given in virtual format. */ - -#define STORE_RETURN_VALUE(TYPE,VALBUF) \ - write_register_bytes (2*sizeof(void*), (VALBUF), TYPE_LENGTH (TYPE)) - -/* In COFF, if PCC says a parameter is a short or a char, do not - change it to int (it seems the convention is to change it). */ - -#define BELIEVE_PCC_PROMOTION 1 - -/* We provide our own get_saved_register in m88k-tdep.c. */ -#define GET_SAVED_REGISTER - -/* Describe the pointer in each stack frame to the previous stack frame - (its caller). */ - -/* FRAME_CHAIN takes a frame's nominal address - and produces the frame's chain-pointer. - - FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address - and produces the nominal address of the caller frame. - - However, if FRAME_CHAIN_VALID returns zero, - it means the given frame is the outermost one and has no caller. - In that case, FRAME_CHAIN_COMBINE is not used. */ - -/* These are just dummies for the 88k because INIT_FRAME_PC sets prev->frame - instead. */ - -#define FRAME_CHAIN(thisframe) (0) - -#define FRAME_CHAIN_VALID(chain, thisframe) (1) - -#define FRAME_CHAIN_COMBINE(chain, thisframe) (0) - -/* Define other aspects of the stack frame. */ - -#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame+4, 4)) - -#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame) - -#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame) - -/* Return number of args passed to a frame. - Can return -1, meaning no way to tell. */ - -#define FRAME_NUM_ARGS(numargs, fi) ((numargs) = -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. */ - -/* On the 88k, parameter registers get stored into the so called "homing" - area. This *always* happens when you compiled with GCC and use -g. - Also, (with GCC and -g) the saving of the parameter register values - always happens right within the function prologue code, so these register - values can generally be relied upon to be already copied into their - respective homing slots by the time you will normally try to look at - them (we hope). - - Note that homing area stack slots are always at *positive* offsets from - the frame pointer. Thus, the homing area stack slots for the parameter - registers (passed values) for a given function are actually part of the - frame area of the caller. This is unusual, but it should not present - any special problems for GDB. - - Note also that on the 88k, we are only interested in finding the - registers that might have been saved in memory. This is a subset of - the whole set of registers because the standard calling sequence allows - the called routine to clobber many registers. - - We could manage to locate values for all of the so called "preserved" - registers (some of which may get saved within any particular frame) but - that would require decoding all of the tdesc information. Tht would be - nice information for GDB to have, but it is not strictly manditory if we - can live without the ability to look at values within (or backup to) - previous frames. -*/ - -#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ - frame_find_saved_regs (frame_info, &frame_saved_regs) - - -/* There is not currently a functioning way to call functions in the - inferior. */ - -/* But if there was this is where we'd put the call dummy. */ -/* #define CALL_DUMMY_LOCATION AFTER_TEXT_END */ - -/* When popping a frame on the 88k (say when doing a return command), the - calling function only expects to have the "preserved" registers restored. - Thus, those are the only ones that we even try to restore here. */ - -extern void pop_frame (); - -#define POP_FRAME pop_frame () - -/* BCS is a standard for binary compatibility. This machine uses it. */ -#if !defined (BCS) -#define BCS 1 -#endif - -#define DELTA88