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Diffstat (limited to 'gdb/config/i386/tm-sun386.h')
| -rw-r--r-- | gdb/config/i386/tm-sun386.h | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/gdb/config/i386/tm-sun386.h b/gdb/config/i386/tm-sun386.h new file mode 100644 index 00000000000..259fd518238 --- /dev/null +++ b/gdb/config/i386/tm-sun386.h @@ -0,0 +1,205 @@ +/* Parameters for a Sun 386i target machine, for GDB, the GNU debugger. + Copyright 1986, 1987, 1991, 1992, 1993 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. */ + +#if !defined (TM_SUN386_H) +#define TM_SUN386_H 1 + +#include "i386/tm-i386.h" + +#ifndef sun386 +#define sun386 +#endif +#define GDB_TARGET_IS_SUN386 1 +#define SUNOS4 +#define USE_MACHINE_REG_H + +/* Perhaps some day this will work even without the following #define */ +#define COFF_ENCAPSULATE + +#ifdef COFF_ENCAPSULATE +/* Avoid conflicts between our include files and <sys/exec.h> + (maybe not needed anymore). */ +#define _EXEC_ +#endif + +/* sun386 ptrace seems unable to change the frame pointer */ +#define PTRACE_FP_BUG + +/* Address of end of stack space. */ + +#define STACK_END_ADDR 0xfc000000 + +/* Number of machine registers */ + +#undef NUM_REGS +#define NUM_REGS 35 + +/* Initializer for an array of names of registers. There should be NUM_REGS + strings in this initializer. The order of the first 8 registers must match + the compiler's numbering scheme (which is the same as the 386 scheme) also, + this table must match regmap in i386-pinsn.c. */ + +#undef REGISTER_NAMES +#define REGISTER_NAMES { "gs", "fs", "es", "ds", \ + "edi", "esi", "ebp", "esp", \ + "ebx", "edx", "ecx", "eax", \ + "retaddr", "trapnum", "errcode", "ip", \ + "cs", "ps", "sp", "ss", \ + "fst0", "fst1", "fst2", "fst3", \ + "fst4", "fst5", "fst6", "fst7", \ + "fctrl", "fstat", "ftag", "fip", \ + "fcs", "fopoff", "fopsel" \ + } + +/* 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. */ + +#undef FP_REGNUM +#define FP_REGNUM 6 /* (ebp) Contains address of executing stack frame */ +#undef SP_REGNUM +#define SP_REGNUM 18 /* (usp) Contains address of top of stack */ +#undef PS_REGNUM +#define PS_REGNUM 17 /* (ps) Contains processor status */ +#undef PC_REGNUM +#define PC_REGNUM 15 /* (eip) Contains program counter */ +#undef FP0_REGNUM +#define FP0_REGNUM 20 /* Floating point register 0 */ +#undef FPC_REGNUM +#define FPC_REGNUM 28 /* 80387 control register */ + +/* Total amount of space needed to store our copies of the machine's + register state, the array `registers'. */ + +#undef REGISTER_BYTES +#define REGISTER_BYTES (20*4+8*10+7*4) + +/* Index within `registers' of the first byte of the space for + register N. */ + +#undef REGISTER_BYTE +#define REGISTER_BYTE(N) \ + ((N) >= FPC_REGNUM ? (((N) - FPC_REGNUM) * 4) + 160 \ + : (N) >= FP0_REGNUM ? (((N) - FP0_REGNUM) * 10) + 80 \ + : (N) * 4) + +/* Number of bytes of storage in the actual machine representation + for register N. */ + +#undef REGISTER_RAW_SIZE +#define REGISTER_RAW_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 10 : 4) + +/* Number of bytes of storage in the program's representation + for register N. */ + +#undef REGISTER_VIRTUAL_SIZE +#define REGISTER_VIRTUAL_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 8 : 4) + +/* Nonzero if register N requires conversion + from raw format to virtual format. */ + +#undef REGISTER_CONVERTIBLE +#define REGISTER_CONVERTIBLE(N) (((unsigned)((N) - FP0_REGNUM)) < 8) + +/* Convert data from raw format for register REGNUM in buffer FROM + to virtual format with type TYPE in buffer TO. */ + +#undef REGISTER_CONVERT_TO_VIRTUAL +#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ +{ \ + double val; \ + i387_to_double ((FROM), (char *)&val); \ + store_floating ((TO), TYPE_LENGTH (TYPE), val); \ +} +extern void +i387_to_double PARAMS ((char *, char *)); + +/* Convert data from virtual format with type TYPE in buffer FROM + to raw format for register REGNUM in buffer TO. */ + +#undef REGISTER_CONVERT_TO_RAW +#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ +{ \ + double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \ + double_to_i387((char *)&val, (TO)); \ +} +extern void +double_to_i387 PARAMS ((char *, char *)); + +/* Return the GDB type object for the "standard" data type + of data in register N. */ + +#undef REGISTER_VIRTUAL_TYPE +#define REGISTER_VIRTUAL_TYPE(N) \ + (((unsigned)((N) - FP0_REGNUM)) < 8 ? builtin_type_double : builtin_type_int) + +/* 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. */ + +#undef EXTRACT_RETURN_VALUE +#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ + memcpy (VALBUF, REGBUF + REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), TYPE_LENGTH (TYPE)) + +/* Write into appropriate registers a function return value + of type TYPE, given in virtual format. */ + +#undef STORE_RETURN_VALUE +#define STORE_RETURN_VALUE(TYPE,VALBUF) \ + write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), VALBUF, TYPE_LENGTH (TYPE)) + +/* 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. */ + +#undef FRAME_CHAIN +#define FRAME_CHAIN(thisframe) \ + (!inside_entry_file ((thisframe)->pc) ? \ + read_memory_integer ((thisframe)->frame, 4) :\ + 0) + +/* Define other aspects of the stack frame. */ + +/* 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. */ + +#undef FRAMELESS_FUNCTION_INVOCATION +#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \ +{ (FRAMELESS) = frameless_look_for_prologue (FI); } + +#undef FRAME_SAVED_PC +#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4)) + +/* Insert the specified number of args and function address + into a call sequence of the above form stored at DUMMYNAME. */ + +#undef FIX_CALL_DUMMY +#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \ +{ \ + *(int *)((char *)(dummyname) + 1) = (int)(fun) - (pc) - 5; \ +} + +#endif /* !defined (TM_SUN386_H) */ + |