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31a85ea289
* infcmd.c (print_float_info): Delete code conditional on FLOAT_INFO. * config/nm-lynx.h: Delete #undef FLOAT_INFO. Update copyright. * config/m68k/nm-apollo68b.h: Ditto. * config/i386/tm-ptx.h (FLOAT_INFO): Delete. Update copyright. * config/ns32k/nm-nbsd.h (FLOAT_INFO): Ditto. * config/i386/tm-symmetry.h (FLOAT_INFO): Ditto. Index: doc/ChangeLog 2003-02-01 Andrew Cagney <ac131313@redhat.com> * gdbint.texinfo (Target Architecture Definition): Delete FLOAT_INFO.
292 lines
9.6 KiB
C
292 lines
9.6 KiB
C
/* Target machine definitions for GDB on a Sequent Symmetry under dynix 3.0,
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with Weitek 1167 and i387 support.
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Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 2003 Free
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Software Foundation, Inc.
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Symmetry version by Jay Vosburgh (fubar@sequent.com).
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef TM_SYMMETRY_H
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#define TM_SYMMETRY_H 1
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#include "regcache.h"
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#include "doublest.h"
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/* I don't know if this will work for cross-debugging, even if you do get
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a copy of the right include file. */
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#include <machine/reg.h>
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#include "i386/tm-i386.h"
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/* Amount PC must be decremented by after a breakpoint. This is often the
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number of bytes in BREAKPOINT but not always (such as now). */
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#undef DECR_PC_AFTER_BREAK
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#define DECR_PC_AFTER_BREAK 0
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/* Number of machine registers */
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#undef NUM_REGS
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#define NUM_REGS 49
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/* Initializer for an array of names of registers.
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There should be NUM_REGS strings in this initializer. */
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/* Initializer for an array of names of registers. There should be at least
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NUM_REGS strings in this initializer. Any excess ones are simply ignored.
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Symmetry registers are in this weird order to match the register numbers
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in the symbol table entries. If you change the order, things will probably
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break mysteriously for no apparent reason. Also note that the st(0)...
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st(7) 387 registers are represented as st0...st7. */
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#undef REGISTER_NAME
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#define REGISTER_NAMES { "eax", "edx", "ecx", "st0", "st1", \
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"ebx", "esi", "edi", "st2", "st3", \
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"st4", "st5", "st6", "st7", "esp", \
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"ebp", "eip", "eflags","fp1", "fp2", \
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"fp3", "fp4", "fp5", "fp6", "fp7", \
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"fp8", "fp9", "fp10", "fp11", "fp12", \
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"fp13", "fp14", "fp15", "fp16", "fp17", \
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"fp18", "fp19", "fp20", "fp21", "fp22", \
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"fp23", "fp24", "fp25", "fp26", "fp27", \
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"fp28", "fp29", "fp30", "fp31" }
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/* Register numbers of various important registers.
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Note that some of these values are "real" register numbers,
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and correspond to the general registers of the machine,
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and some are "phony" register numbers which are too large
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to be actual register numbers as far as the user is concerned
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but do serve to get the desired values when passed to read_register. */
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#define EAX_REGNUM 0
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#define EDX_REGNUM 1
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#define ECX_REGNUM 2
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#define ST0_REGNUM 3
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#define ST1_REGNUM 4
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#define EBX_REGNUM 5
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#define ESI_REGNUM 6
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#define EDI_REGNUM 7
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#define ST2_REGNUM 8
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#define ST3_REGNUM 9
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#define ST4_REGNUM 10
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#define ST5_REGNUM 11
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#define ST6_REGNUM 12
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#define ST7_REGNUM 13
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#define FP1_REGNUM 18 /* first 1167 register */
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/* Get %fp2 - %fp31 by addition, since they are contiguous */
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#undef SP_REGNUM
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#define SP_REGNUM 14 /* (usp) Contains address of top of stack */
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#define ESP_REGNUM 14
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#undef FP_REGNUM
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#define FP_REGNUM 15 /* (ebp) Contains address of executing stack frame */
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#define EBP_REGNUM 15
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#undef PC_REGNUM
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#define PC_REGNUM 16 /* (eip) Contains program counter */
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#define EIP_REGNUM 16
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#undef PS_REGNUM
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#define PS_REGNUM 17 /* (ps) Contains processor status */
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#define EFLAGS_REGNUM 17
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/*
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* Following macro translates i386 opcode register numbers to Symmetry
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* register numbers. This is used by i386_frame_find_saved_regs.
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*
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* %eax %ecx %edx %ebx %esp %ebp %esi %edi
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* i386 0 1 2 3 4 5 6 7
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* Symmetry 0 2 1 5 14 15 6 7
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*
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*/
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#define I386_REGNO_TO_SYMMETRY(n) \
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((n)==0?0 :(n)==1?2 :(n)==2?1 :(n)==3?5 :(n)==4?14 :(n)==5?15 :(n))
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/* The magic numbers below are offsets into u_ar0 in the user struct.
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* They live in <machine/reg.h>. Gdb calls this macro with blockend
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* holding u.u_ar0 - KERNEL_U_ADDR. Only the registers listed are
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* saved in the u area (along with a few others that aren't useful
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* here. See <machine/reg.h>).
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*/
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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{ struct user foo; /* needed for finding fpu regs */ \
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switch (regno) { \
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case 0: \
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addr = blockend + EAX * sizeof(int); break; \
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case 1: \
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addr = blockend + EDX * sizeof(int); break; \
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case 2: \
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addr = blockend + ECX * sizeof(int); break; \
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case 3: /* st(0) */ \
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addr = ((int)&foo.u_fpusave.fpu_stack[0][0] - (int)&foo); \
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break; \
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case 4: /* st(1) */ \
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addr = ((int) &foo.u_fpusave.fpu_stack[1][0] - (int)&foo); \
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break; \
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case 5: \
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addr = blockend + EBX * sizeof(int); break; \
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case 6: \
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addr = blockend + ESI * sizeof(int); break; \
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case 7: \
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addr = blockend + EDI * sizeof(int); break; \
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case 8: /* st(2) */ \
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addr = ((int) &foo.u_fpusave.fpu_stack[2][0] - (int)&foo); \
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break; \
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case 9: /* st(3) */ \
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addr = ((int) &foo.u_fpusave.fpu_stack[3][0] - (int)&foo); \
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break; \
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case 10: /* st(4) */ \
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addr = ((int) &foo.u_fpusave.fpu_stack[4][0] - (int)&foo); \
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break; \
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case 11: /* st(5) */ \
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addr = ((int) &foo.u_fpusave.fpu_stack[5][0] - (int)&foo); \
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break; \
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case 12: /* st(6) */ \
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addr = ((int) &foo.u_fpusave.fpu_stack[6][0] - (int)&foo); \
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break; \
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case 13: /* st(7) */ \
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addr = ((int) &foo.u_fpusave.fpu_stack[7][0] - (int)&foo); \
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break; \
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case 14: \
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addr = blockend + ESP * sizeof(int); break; \
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case 15: \
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addr = blockend + EBP * sizeof(int); break; \
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case 16: \
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addr = blockend + EIP * sizeof(int); break; \
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case 17: \
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addr = blockend + FLAGS * sizeof(int); break; \
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case 18: /* fp1 */ \
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case 19: /* fp2 */ \
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case 20: /* fp3 */ \
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case 21: /* fp4 */ \
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case 22: /* fp5 */ \
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case 23: /* fp6 */ \
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case 24: /* fp7 */ \
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case 25: /* fp8 */ \
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case 26: /* fp9 */ \
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case 27: /* fp10 */ \
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case 28: /* fp11 */ \
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case 29: /* fp12 */ \
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case 30: /* fp13 */ \
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case 31: /* fp14 */ \
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case 32: /* fp15 */ \
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case 33: /* fp16 */ \
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case 34: /* fp17 */ \
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case 35: /* fp18 */ \
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case 36: /* fp19 */ \
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case 37: /* fp20 */ \
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case 38: /* fp21 */ \
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case 39: /* fp22 */ \
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case 40: /* fp23 */ \
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case 41: /* fp24 */ \
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case 42: /* fp25 */ \
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case 43: /* fp26 */ \
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case 44: /* fp27 */ \
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case 45: /* fp28 */ \
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case 46: /* fp29 */ \
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case 47: /* fp30 */ \
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case 48: /* fp31 */ \
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addr = ((int) &foo.u_fpasave.fpa_regs[(regno)-18] - (int)&foo); \
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} \
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}
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/* Total amount of space needed to store our copies of the machine's
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register state, the array `registers'. 10 i*86 registers, 8 i387
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registers, and 31 Weitek 1167 registers */
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#undef REGISTER_BYTES
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#define REGISTER_BYTES ((10 * 4) + (8 * 10) + (31 * 4))
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/* Nonzero if register N requires conversion
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from raw format to virtual format. */
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#undef REGISTER_CONVERTIBLE
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#define REGISTER_CONVERTIBLE(N) \
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(((N) < 3) ? 0 : \
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((N) < 5) ? 1 : \
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((N) < 8) ? 0 : \
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((N) < 14) ? 1 : \
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0)
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#include "floatformat.h"
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/* Convert data from raw format for register REGNUM in buffer FROM
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to virtual format with type TYPE in buffer TO. */
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#undef REGISTER_CONVERT_TO_VIRTUAL
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#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
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{ \
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DOUBLEST val; \
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floatformat_to_doublest (&floatformat_i387_ext, (FROM), &val); \
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store_floating ((TO), TYPE_LENGTH (TYPE), val); \
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}
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/* Convert data from virtual format with type TYPE in buffer FROM
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to raw format for register REGNUM in buffer TO. */
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#undef REGISTER_CONVERT_TO_RAW
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#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
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{ \
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DOUBLEST val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
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floatformat_from_doublest (&floatformat_i387_ext, &val, (TO)); \
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}
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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#undef REGISTER_VIRTUAL_TYPE
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#define REGISTER_VIRTUAL_TYPE(N) \
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((N < 3) ? builtin_type_int : \
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(N < 5) ? builtin_type_double : \
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(N < 8) ? builtin_type_int : \
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(N < 14) ? builtin_type_double : \
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builtin_type_int)
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/* Store the address of the place in which to copy the structure the
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subroutine will return. This is called from call_function.
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Native cc passes the address in eax, gcc (up to version 2.5.8)
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passes it on the stack. gcc should be fixed in future versions to
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adopt native cc conventions. */
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#undef PUSH_ARGUMENTS
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#undef STORE_STRUCT_RETURN
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#define STORE_STRUCT_RETURN(ADDR, SP) write_register(0, (ADDR))
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/* Extract from an array REGBUF containing the (raw) register state
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a function return value of type TYPE, and copy that, in virtual format,
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into VALBUF. */
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#undef DEPRECATED_EXTRACT_RETURN_VALUE
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#define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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symmetry_extract_return_value(TYPE, REGBUF, VALBUF)
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/* The following redefines make backtracing through sigtramp work.
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They manufacture a fake sigtramp frame and obtain the saved pc in sigtramp
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from the sigcontext structure which is pushed by the kernel on the
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user stack, along with a pointer to it. */
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#define IN_SIGTRAMP(pc, name) ((name) && STREQ ("_sigcode", name))
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/* Offset to saved PC in sigcontext, from <signal.h>. */
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#define SIGCONTEXT_PC_OFFSET 16
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#endif /* ifndef TM_SYMMETRY_H */
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