59144a8124
* symm-nat.c (child_wait, _initialize_symm_nat, kill_inferior):
Supply alternate version if ATTACH_DETACH is not defined.
* ptx4-nat.c, config/i386/{nm-ptx4.h, ptx4.mh, ptx.mt, ptx4.mt,
tm-ptx.h, tm-ptx4.h, xm-ptx.h, xm-ptx4.h}: New files.
* configure.in: Recognize i[34]86-sequent-sysv4* host.
232 lines
7.3 KiB
C
232 lines
7.3 KiB
C
/* 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
||
/* 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>
|
||
|
||
/*
|
||
#define SDB_REG_TO_REGNUM(value) ptx_coff_regno_to_gdb(value)
|
||
extern int ptx_coff_regno_to_gdb();
|
||
*/
|
||
|
||
#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. */
|
||
|
||
#define DECR_PC_AFTER_BREAK 0
|
||
|
||
#ifdef SEQUENT_PTX4
|
||
#include "i386/tm-i386v4.h"
|
||
#else /* !SEQUENT_PTX4 */
|
||
#include "i386/tm-i386v.h"
|
||
#endif
|
||
|
||
#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 NUM_REGS strings in this initializer. */
|
||
|
||
#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 i386 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)
|
||
|
||
|
||
/*
|
||
* Removed extra PUSH_DUMMY_FRAME, et al: it was identical to the
|
||
* i386-tdep.c version.
|
||
*/
|
||
|
||
extern void
|
||
print_387_control_word PARAMS ((unsigned int));
|
||
|
||
extern void
|
||
print_387_status_word PARAMS ((unsigned int));
|
||
|
||
/*
|
||
#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)); }
|
||
*/
|