diff options
Diffstat (limited to 'gdb/config/i386/tm-ptx.h')
| -rw-r--r-- | gdb/config/i386/tm-ptx.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/gdb/config/i386/tm-ptx.h b/gdb/config/i386/tm-ptx.h new file mode 100644 index 00000000000..c9f67d7f6d8 --- /dev/null +++ b/gdb/config/i386/tm-ptx.h @@ -0,0 +1,232 @@ +/* Target machine definitions for GDB on a Sequent Symmetry under ptx + with Weitek 1167 and i387 support. + Copyright 1986, 1987, 1989, 1991, 1992, 1993 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-i386v4.h" +#else /* !SEQUENT_PTX4 */ +#include "i386/tm-i386v.h" +#endif + +/* Number of traps that happen between exec'ing the shell to run an + inferior, and when we finally get to the inferior code. This is 2 + on most implementations. Here we have to undo what tm-i386v.h gave + us and restore the default. */ + +#undef START_INFERIOR_TRAPS_EXPECTED +#define START_INFERIOR_TRAPS_EXPECTED 2 + +/* 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_NAMES +#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 PARAMS ((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)) + +/* Index within `registers' of the first byte of the space for register N. */ + +#undef REGISTER_BYTE +#define REGISTER_BYTE(N) \ +(((N) < ST0_REGNUM) ? ((N) * 4) : \ + ((N) < FP1_REGNUM) ? (40 + (((N) - ST0_REGNUM) * 10)) : \ + (40 + 80 + (((N) - FP1_REGNUM) * 4))) + +/* Number of bytes of storage in the actual machine representation for + register N. All registers are 4 bytes, except 387 st(0) - st(7), + which are 80 bits each. */ + +#undef REGISTER_RAW_SIZE +#define REGISTER_RAW_SIZE(N) \ +(((N) < ST0_REGNUM) ? 4 : \ + ((N) < FP1_REGNUM) ? 10 : \ + 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 EXTRACT_RETURN_VALUE +#define 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 */ |