| /* Target machine definitions for GDB on a Sequent Symmetry under ptx |
| with Weitek 1167 and i387 support. |
| Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 2000 |
| Free Software Foundation, Inc. |
| Symmetry version by Jay Vosburgh (fubar@sequent.com). |
| |
| 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. */ |
| |
| #ifndef TM_PTX_H |
| #define TM_PTX_H 1 |
| |
| /* I don't know if this will work for cross-debugging, even if you do get |
| a copy of the right include file. */ |
| |
| #include <sys/reg.h> |
| |
| #ifdef SEQUENT_PTX4 |
| #include "i386/tm-i386.h" |
| #else /* !SEQUENT_PTX4 */ |
| #include "i386/tm-i386.h" |
| #endif |
| |
| /* Amount PC must be decremented by after a breakpoint. This is often the |
| number of bytes in BREAKPOINT but not always (such as now). */ |
| |
| #undef DECR_PC_AFTER_BREAK |
| #define DECR_PC_AFTER_BREAK 0 |
| |
| #if 0 |
| -- -this code can 't be used unless we know we are running native, |
| since it uses host specific ptrace calls. |
| /* code for 80387 fpu. Functions are from i386-dep.c, copied into |
| * symm-dep.c. |
| */ |
| #define FLOAT_INFO { i386_float_info(); } |
| #endif |
| |
| /* Number of machine registers */ |
| |
| #undef NUM_REGS |
| #define NUM_REGS 49 |
| |
| /* Initializer for an array of names of registers. There should be at least |
| NUM_REGS strings in this initializer. Any excess ones are simply ignored. |
| The order of the first 8 registers must match the compiler's numbering |
| scheme (which is the same as the 386 scheme) and also regmap in the various |
| *-nat.c files. */ |
| |
| #undef REGISTER_NAME |
| #define REGISTER_NAMES { "eax", "ecx", "edx", "ebx", \ |
| "esp", "ebp", "esi", "edi", \ |
| "eip", "eflags", "st0", "st1", \ |
| "st2", "st3", "st4", "st5", \ |
| "st6", "st7", "fp1", "fp2", \ |
| "fp3", "fp4", "fp5", "fp6", \ |
| "fp7", "fp8", "fp9", "fp10", \ |
| "fp11", "fp12", "fp13", "fp14", \ |
| "fp15", "fp16", "fp17", "fp18", \ |
| "fp19", "fp20", "fp21", "fp22", \ |
| "fp23", "fp24", "fp25", "fp26", \ |
| "fp27", "fp28", "fp29", "fp30", \ |
| "fp31" } |
| |
| /* 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 EAX_REGNUM 0 |
| #define ECX_REGNUM 1 |
| #define EDX_REGNUM 2 |
| #define EBX_REGNUM 3 |
| |
| #define ESP_REGNUM 4 |
| #define EBP_REGNUM 5 |
| |
| #define ESI_REGNUM 6 |
| #define EDI_REGNUM 7 |
| |
| #define EIP_REGNUM 8 |
| #define EFLAGS_REGNUM 9 |
| |
| #define ST0_REGNUM 10 |
| #define ST1_REGNUM 11 |
| #define ST2_REGNUM 12 |
| #define ST3_REGNUM 13 |
| |
| #define ST4_REGNUM 14 |
| #define ST5_REGNUM 15 |
| #define ST6_REGNUM 16 |
| #define ST7_REGNUM 17 |
| |
| #define FP1_REGNUM 18 /* first 1167 register */ |
| /* Get %fp2 - %fp31 by addition, since they are contiguous */ |
| |
| #undef SP_REGNUM |
| #define SP_REGNUM ESP_REGNUM /* Contains address of top of stack */ |
| #undef FP_REGNUM |
| #define FP_REGNUM EBP_REGNUM /* Contains address of executing stack frame */ |
| #undef PC_REGNUM |
| #define PC_REGNUM EIP_REGNUM /* Contains program counter */ |
| #undef PS_REGNUM |
| #define PS_REGNUM EFLAGS_REGNUM /* Contains processor status */ |
| |
| /* |
| * For ptx, this is a little bit bizarre, since the register block |
| * is below the u area in memory. This means that blockend here ends |
| * up being negative (for the call from coredep.c) since the value in |
| * u.u_ar0 will be less than KERNEL_U_ADDR (and coredep.c passes us |
| * u.u_ar0 - KERNEL_U_ADDR in blockend). Since we also define |
| * FETCH_INFERIOR_REGISTERS (and supply our own functions for that), |
| * the core file case will be the only use of this function. |
| */ |
| |
| #define REGISTER_U_ADDR(addr, blockend, regno) \ |
| { (addr) = ptx_register_u_addr((blockend), (regno)); } |
| |
| extern int ptx_register_u_addr (int, int); |
| |
| /* Total amount of space needed to store our copies of the machine's |
| register state, the array `registers'. 10 i*86 registers, 8 i387 |
| registers, and 31 Weitek 1167 registers */ |
| |
| #undef REGISTER_BYTES |
| #define REGISTER_BYTES ((10 * 4) + (8 * 10) + (31 * 4)) |
| |
| /* Largest value REGISTER_RAW_SIZE can have. */ |
| |
| #undef MAX_REGISTER_RAW_SIZE |
| #define MAX_REGISTER_RAW_SIZE 10 |
| |
| /* Nonzero if register N requires conversion |
| from raw format to virtual format. */ |
| |
| #undef REGISTER_CONVERTIBLE |
| #define REGISTER_CONVERTIBLE(N) \ |
| ((N < ST0_REGNUM) ? 0 : \ |
| (N < FP1_REGNUM) ? 1 : \ |
| 0) |
| |
| /* Convert data from raw format for register REGNUM |
| to virtual format for register REGNUM. */ |
| extern const struct floatformat floatformat_i387_ext; /* from floatformat.h */ |
| |
| #undef REGISTER_CONVERT_TO_VIRTUAL |
| #define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \ |
| ((REGNUM < ST0_REGNUM) ? (void)memcpy ((TO), (FROM), 4) : \ |
| (REGNUM < FP1_REGNUM) ? (void)floatformat_to_double(&floatformat_i387_ext, \ |
| (FROM),(TO)) : \ |
| (void)memcpy ((TO), (FROM), 4)) |
| |
| /* Convert data from virtual format for register REGNUM |
| to raw format for register REGNUM. */ |
| |
| #undef REGISTER_CONVERT_TO_RAW |
| #define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \ |
| ((REGNUM < ST0_REGNUM) ? (void)memcpy ((TO), (FROM), 4) : \ |
| (REGNUM < FP1_REGNUM) ? (void)floatformat_from_double(&floatformat_i387_ext, \ |
| (FROM),(TO)) : \ |
| (void)memcpy ((TO), (FROM), 4)) |
| |
| /* Return the GDB type object for the "standard" data type |
| of data in register N. */ |
| /* |
| * Note: the 1167 registers (the last line, builtin_type_float) are |
| * generally used in pairs, with each pair being treated as a double. |
| * It it also possible to use them singly as floats. I'm not sure how |
| * in gdb to treat the register pair pseudo-doubles. -fubar |
| */ |
| #undef REGISTER_VIRTUAL_TYPE |
| #define REGISTER_VIRTUAL_TYPE(N) \ |
| ((N < ST0_REGNUM) ? builtin_type_int : \ |
| (N < FP1_REGNUM) ? builtin_type_double : \ |
| builtin_type_float) |
| |
| /* 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 DEPRECATED_EXTRACT_RETURN_VALUE |
| #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ |
| symmetry_extract_return_value(TYPE, REGBUF, VALBUF) |
| |
| /* |
| #undef FRAME_FIND_SAVED_REGS |
| #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ |
| { ptx_frame_find_saved_regs((frame_info), &(frame_saved_regs)); } |
| */ |
| |
| #endif /* ifndef TM_PTX_H */ |