78c4394505
Obsolete mips*-*-mach3*. * NEWS: Mention that mips*-*-mach3* is obsolete. * m3-nat.c: Obsolete file. * config/nm-m3.h: Obsolete file. * config/mips/tm-mipsm3.h: Obsolete file. * config/mips/mipsm3.mt: Obsolete file. * config/mips/mipsm3.mh: Obsolete file. * config/mips/xm-mipsm3.h: Obsolete file. * mipsm3-nat.c: Obsolete file. * configure.host: Obsolete mips-dec-mach3*. * configure.tgt: Obsolete mips*-*-mach3*.
386 lines
16 KiB
C
386 lines
16 KiB
C
// OBSOLETE /* Definitions to make GDB run on a mips box under Mach 3.0
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// OBSOLETE Copyright 1992, 1993, 1998, 2000, 2001 Free Software Foundation, Inc.
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// OBSOLETE
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// OBSOLETE This file is part of GDB.
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// OBSOLETE
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// OBSOLETE This program is free software; you can redistribute it and/or modify
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// OBSOLETE it under the terms of the GNU General Public License as published by
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// OBSOLETE the Free Software Foundation; either version 2 of the License, or
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// OBSOLETE (at your option) any later version.
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// OBSOLETE
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// OBSOLETE This program is distributed in the hope that it will be useful,
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// OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of
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// OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// OBSOLETE GNU General Public License for more details.
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// OBSOLETE
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// OBSOLETE You should have received a copy of the GNU General Public License
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// OBSOLETE along with this program; if not, write to the Free Software
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// OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330,
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// OBSOLETE Boston, MA 02111-1307, USA. */
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// OBSOLETE
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// OBSOLETE /* Mach specific routines for little endian mips (e.g. pmax)
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// OBSOLETE * running Mach 3.0
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// OBSOLETE *
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// OBSOLETE * Author: Jukka Virtanen <jtv@hut.fi>
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE #include "defs.h"
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// OBSOLETE #include "inferior.h"
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// OBSOLETE #include "regcache.h"
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// OBSOLETE
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// OBSOLETE #include <stdio.h>
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// OBSOLETE
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// OBSOLETE #include <mach.h>
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// OBSOLETE #include <mach/message.h>
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// OBSOLETE #include <mach/exception.h>
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// OBSOLETE #include <mach_error.h>
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// OBSOLETE
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// OBSOLETE /* Find offsets to thread states at compile time.
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// OBSOLETE * If your compiler does not grok this, check the hand coded
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// OBSOLETE * offsets and use them.
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE #if 1
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// OBSOLETE
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// OBSOLETE #define REG_OFFSET(reg) (int)(&((struct mips_thread_state *)0)->reg)
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// OBSOLETE #define CREG_OFFSET(reg) (int)(&((struct mips_float_state *)0)->reg)
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// OBSOLETE #define EREG_OFFSET(reg) (int)(&((struct mips_exc_state *)0)->reg)
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// OBSOLETE
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// OBSOLETE /* at reg_offset[i] is the offset to the mips_thread_state
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// OBSOLETE * location where the gdb registers[i] is stored.
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// OBSOLETE *
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// OBSOLETE * -1 means mach does not save it anywhere.
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// OBSOLETE */
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// OBSOLETE static int reg_offset[] =
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// OBSOLETE {
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// OBSOLETE /* zero at v0 v1 */
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// OBSOLETE -1, REG_OFFSET (r1), REG_OFFSET (r2), REG_OFFSET (r3),
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// OBSOLETE
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// OBSOLETE /* a0 a1 a2 a3 */
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// OBSOLETE REG_OFFSET (r4), REG_OFFSET (r5), REG_OFFSET (r6), REG_OFFSET (r7),
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// OBSOLETE
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// OBSOLETE /* t0 t1 t2 t3 */
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// OBSOLETE REG_OFFSET (r8), REG_OFFSET (r9), REG_OFFSET (r10), REG_OFFSET (r11),
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// OBSOLETE
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// OBSOLETE /* t4 t5 t6 t7 */
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// OBSOLETE REG_OFFSET (r12), REG_OFFSET (r13), REG_OFFSET (r14), REG_OFFSET (r15),
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// OBSOLETE
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// OBSOLETE /* s0 s1 s2 s3 */
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// OBSOLETE REG_OFFSET (r16), REG_OFFSET (r17), REG_OFFSET (r18), REG_OFFSET (r19),
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// OBSOLETE
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// OBSOLETE /* s4 s5 s6 s7 */
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// OBSOLETE REG_OFFSET (r20), REG_OFFSET (r21), REG_OFFSET (r22), REG_OFFSET (r23),
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// OBSOLETE
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// OBSOLETE /* t8 t9 k0 k1 */
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// OBSOLETE REG_OFFSET (r24), REG_OFFSET (r25), REG_OFFSET (r26), REG_OFFSET (r27),
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// OBSOLETE
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// OBSOLETE /* gp sp s8(30) == fp(72) ra */
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// OBSOLETE REG_OFFSET (r28), REG_OFFSET (r29), REG_OFFSET (r30), REG_OFFSET (r31),
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// OBSOLETE
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// OBSOLETE /* sr(32) PS_REGNUM */
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// OBSOLETE EREG_OFFSET (coproc_state),
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// OBSOLETE
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// OBSOLETE /* lo(33) hi(34) */
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// OBSOLETE REG_OFFSET (mdlo), REG_OFFSET (mdhi),
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// OBSOLETE
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// OBSOLETE /* bad(35) cause(36) pc(37) */
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// OBSOLETE EREG_OFFSET (address), EREG_OFFSET (cause), REG_OFFSET (pc),
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// OBSOLETE
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// OBSOLETE /* f0(38) f1(39) f2(40) f3(41) */
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// OBSOLETE CREG_OFFSET (r0), CREG_OFFSET (r1), CREG_OFFSET (r2), CREG_OFFSET (r3),
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// OBSOLETE CREG_OFFSET (r4), CREG_OFFSET (r5), CREG_OFFSET (r6), CREG_OFFSET (r7),
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// OBSOLETE CREG_OFFSET (r8), CREG_OFFSET (r9), CREG_OFFSET (r10), CREG_OFFSET (r11),
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// OBSOLETE CREG_OFFSET (r12), CREG_OFFSET (r13), CREG_OFFSET (r14), CREG_OFFSET (r15),
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// OBSOLETE CREG_OFFSET (r16), CREG_OFFSET (r17), CREG_OFFSET (r18), CREG_OFFSET (r19),
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// OBSOLETE CREG_OFFSET (r20), CREG_OFFSET (r21), CREG_OFFSET (r22), CREG_OFFSET (r23),
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// OBSOLETE CREG_OFFSET (r24), CREG_OFFSET (r25), CREG_OFFSET (r26), CREG_OFFSET (r27),
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// OBSOLETE CREG_OFFSET (r28), CREG_OFFSET (r29), CREG_OFFSET (r30), CREG_OFFSET (r31),
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// OBSOLETE
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// OBSOLETE /* fsr(70) fir(71) fp(72) == s8(30) */
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// OBSOLETE CREG_OFFSET (csr), CREG_OFFSET (esr), REG_OFFSET (r30)
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// OBSOLETE };
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// OBSOLETE #else
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// OBSOLETE /* If the compiler does not grok the above defines */
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// OBSOLETE static int reg_offset[] =
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// OBSOLETE {
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// OBSOLETE /* mach_thread_state offsets: */
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// OBSOLETE -1, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56,
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// OBSOLETE 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120,
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// OBSOLETE /*sr, lo, hi,addr,cause,pc */
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// OBSOLETE 8, 124, 128, 4, 0, 132,
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// OBSOLETE /* mach_float_state offsets: */
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// OBSOLETE 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60,
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// OBSOLETE 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124,
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// OBSOLETE /*fsr,fir */
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// OBSOLETE 128, 132,
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// OBSOLETE /* FP_REGNUM pseudo maps to s8==r30 in mach_thread_state */
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// OBSOLETE 116
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// OBSOLETE };
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// OBSOLETE #endif
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// OBSOLETE
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// OBSOLETE /* Fetch COUNT contiguous registers from thread STATE starting from REGNUM
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// OBSOLETE * Caller knows that the regs handled in one transaction are of same size.
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// OBSOLETE */
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// OBSOLETE #define FETCH_REGS(state, regnum, count) \
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// OBSOLETE memcpy (&deprecated_registers[REGISTER_BYTE (regnum)], \
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// OBSOLETE (char *)state+reg_offset[ regnum ], \
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// OBSOLETE count*REGISTER_SIZE)
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// OBSOLETE
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// OBSOLETE /* Store COUNT contiguous registers to thread STATE starting from REGNUM */
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// OBSOLETE #define STORE_REGS(state, regnum, count) \
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// OBSOLETE memcpy ((char *)state+reg_offset[ regnum ], \
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// OBSOLETE &deprecated_registers[REGISTER_BYTE (regnum)], \
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// OBSOLETE count*REGISTER_SIZE)
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// OBSOLETE
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// OBSOLETE #define REGS_ALL -1
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// OBSOLETE #define REGS_NORMAL 1
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// OBSOLETE #define REGS_EXC 2
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// OBSOLETE #define REGS_COP1 4
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// OBSOLETE
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// OBSOLETE /* Hardware regs that matches FP_REGNUM */
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// OBSOLETE #define MACH_FP_REGNUM 30
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// OBSOLETE
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// OBSOLETE /* Fech thread's registers. if regno == -1, fetch all regs */
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// OBSOLETE void
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// OBSOLETE fetch_inferior_registers (int regno)
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// OBSOLETE {
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// OBSOLETE kern_return_t ret;
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// OBSOLETE
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// OBSOLETE thread_state_data_t state;
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// OBSOLETE struct mips_exc_state exc_state;
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// OBSOLETE
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// OBSOLETE int stateCnt = MIPS_THREAD_STATE_COUNT;
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// OBSOLETE
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// OBSOLETE int which_regs = 0; /* A bit mask */
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// OBSOLETE
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// OBSOLETE if (!MACH_PORT_VALID (current_thread))
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// OBSOLETE error ("fetch inferior registers: Invalid thread");
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// OBSOLETE
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// OBSOLETE if (regno < -1 || regno >= NUM_REGS)
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// OBSOLETE error ("invalid register %d supplied to fetch_inferior_registers", regno);
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// OBSOLETE
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// OBSOLETE if (regno == -1)
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// OBSOLETE which_regs = REGS_ALL;
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// OBSOLETE else if (regno == ZERO_REGNUM)
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// OBSOLETE {
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// OBSOLETE int zero = 0;
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// OBSOLETE supply_register (ZERO_REGNUM, &zero);
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// OBSOLETE return;
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// OBSOLETE }
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// OBSOLETE else if ((ZERO_REGNUM < regno && regno < PS_REGNUM)
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// OBSOLETE || regno == FP_REGNUM
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// OBSOLETE || regno == LO_REGNUM
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// OBSOLETE || regno == HI_REGNUM
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// OBSOLETE || regno == PC_REGNUM)
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// OBSOLETE which_regs = REGS_NORMAL;
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// OBSOLETE else if (FP0_REGNUM <= regno && regno <= FCRIR_REGNUM)
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// OBSOLETE which_regs = REGS_COP1 | REGS_EXC;
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// OBSOLETE else
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// OBSOLETE which_regs = REGS_EXC;
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// OBSOLETE
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// OBSOLETE /* fetch regs saved to mips_thread_state */
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// OBSOLETE if (which_regs & REGS_NORMAL)
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// OBSOLETE {
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// OBSOLETE ret = thread_get_state (current_thread,
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// OBSOLETE MIPS_THREAD_STATE,
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// OBSOLETE state,
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// OBSOLETE &stateCnt);
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// OBSOLETE CHK ("fetch inferior registers: thread_get_state", ret);
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// OBSOLETE
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// OBSOLETE if (which_regs == REGS_NORMAL)
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// OBSOLETE {
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// OBSOLETE /* Fetch also FP_REGNUM if fetching MACH_FP_REGNUM and vice versa */
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// OBSOLETE if (regno == MACH_FP_REGNUM || regno == FP_REGNUM)
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// OBSOLETE {
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// OBSOLETE supply_register (FP_REGNUM,
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// OBSOLETE (char *) state + reg_offset[MACH_FP_REGNUM]);
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// OBSOLETE supply_register (MACH_FP_REGNUM,
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// OBSOLETE (char *) state + reg_offset[MACH_FP_REGNUM]);
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// OBSOLETE }
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// OBSOLETE else
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// OBSOLETE supply_register (regno,
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// OBSOLETE (char *) state + reg_offset[regno]);
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// OBSOLETE return;
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* ZERO_REGNUM is always zero */
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// OBSOLETE *(int *) deprecated_registers = 0;
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// OBSOLETE
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// OBSOLETE /* Copy thread saved regs 1..31 to gdb's reg value array
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// OBSOLETE * Luckily, they are contiquous
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// OBSOLETE */
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// OBSOLETE FETCH_REGS (state, 1, 31);
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// OBSOLETE
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// OBSOLETE /* Copy mdlo and mdhi */
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// OBSOLETE FETCH_REGS (state, LO_REGNUM, 2);
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// OBSOLETE
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// OBSOLETE /* Copy PC */
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// OBSOLETE FETCH_REGS (state, PC_REGNUM, 1);
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// OBSOLETE
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// OBSOLETE /* Mach 3.0 saves FP to MACH_FP_REGNUM.
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// OBSOLETE * For some reason gdb wants to assign a pseudo register for it.
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// OBSOLETE */
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// OBSOLETE FETCH_REGS (state, FP_REGNUM, 1);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* Read exc state. Also read if need to fetch floats */
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// OBSOLETE if (which_regs & REGS_EXC)
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// OBSOLETE {
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// OBSOLETE stateCnt = MIPS_EXC_STATE_COUNT;
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// OBSOLETE ret = thread_get_state (current_thread,
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// OBSOLETE MIPS_EXC_STATE,
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// OBSOLETE (thread_state_t) & exc_state,
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// OBSOLETE &stateCnt);
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// OBSOLETE CHK ("fetch inferior regs (exc): thread_get_state", ret);
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// OBSOLETE
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// OBSOLETE /* We need to fetch exc_state to see if the floating
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// OBSOLETE * state is valid for the thread.
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE /* cproc_state: Which coprocessors the thread uses */
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// OBSOLETE supply_register (PS_REGNUM,
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// OBSOLETE (char *) &exc_state + reg_offset[PS_REGNUM]);
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// OBSOLETE
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// OBSOLETE if (which_regs == REGS_EXC || which_regs == REGS_ALL)
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// OBSOLETE {
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// OBSOLETE supply_register (BADVADDR_REGNUM,
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// OBSOLETE (char *) &exc_state + reg_offset[BADVADDR_REGNUM]);
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// OBSOLETE
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// OBSOLETE supply_register (CAUSE_REGNUM,
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// OBSOLETE (char *) &exc_state + reg_offset[CAUSE_REGNUM]);
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// OBSOLETE if (which_regs == REGS_EXC)
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// OBSOLETE return;
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// OBSOLETE }
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE
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// OBSOLETE if (which_regs & REGS_COP1)
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// OBSOLETE {
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// OBSOLETE /* If the thread does not have saved COPROC1, set regs to zero */
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// OBSOLETE
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// OBSOLETE if (!(exc_state.coproc_state & MIPS_STATUS_USE_COP1))
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// OBSOLETE bzero (&deprecated_registers[REGISTER_BYTE (FP0_REGNUM)],
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// OBSOLETE sizeof (struct mips_float_state));
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// OBSOLETE else
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// OBSOLETE {
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// OBSOLETE stateCnt = MIPS_FLOAT_STATE_COUNT;
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// OBSOLETE ret = thread_get_state (current_thread,
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// OBSOLETE MIPS_FLOAT_STATE,
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// OBSOLETE state,
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// OBSOLETE &stateCnt);
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// OBSOLETE CHK ("fetch inferior regs (floats): thread_get_state", ret);
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// OBSOLETE
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// OBSOLETE if (regno != -1)
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// OBSOLETE {
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// OBSOLETE supply_register (regno,
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// OBSOLETE (char *) state + reg_offset[regno]);
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// OBSOLETE return;
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE FETCH_REGS (state, FP0_REGNUM, 34);
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// OBSOLETE }
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* All registers are valid, if not returned yet */
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// OBSOLETE deprecated_registers_fetched ();
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE /* Store gdb's view of registers to the thread.
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// OBSOLETE * All registers are always valid when entering here.
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// OBSOLETE * @@ ahem, maybe that is too strict, we could validate the necessary ones
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// OBSOLETE * here.
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// OBSOLETE *
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// OBSOLETE * Hmm. It seems that gdb set $reg=value command first reads everything,
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// OBSOLETE * then sets the reg and then stores everything. -> we must make sure
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// OBSOLETE * that the immutable registers are not changed by reading them first.
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// OBSOLETE */
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// OBSOLETE
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// OBSOLETE void
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// OBSOLETE store_inferior_registers (register int regno)
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// OBSOLETE {
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// OBSOLETE thread_state_data_t state;
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// OBSOLETE kern_return_t ret;
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// OBSOLETE
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// OBSOLETE if (!MACH_PORT_VALID (current_thread))
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// OBSOLETE error ("store inferior registers: Invalid thread");
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// OBSOLETE
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// OBSOLETE /* Check for read only regs.
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// OBSOLETE * @@ If some of these is can be changed, fix this
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// OBSOLETE */
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// OBSOLETE if (regno == ZERO_REGNUM ||
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// OBSOLETE regno == PS_REGNUM ||
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// OBSOLETE regno == BADVADDR_REGNUM ||
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// OBSOLETE regno == CAUSE_REGNUM ||
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// OBSOLETE regno == FCRIR_REGNUM)
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// OBSOLETE {
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// OBSOLETE message ("You can not alter read-only register `%s'",
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// OBSOLETE REGISTER_NAME (regno));
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// OBSOLETE fetch_inferior_registers (regno);
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// OBSOLETE return;
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE if (regno == -1)
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// OBSOLETE {
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// OBSOLETE /* Don't allow these to change */
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// OBSOLETE
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// OBSOLETE /* ZERO_REGNUM */
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// OBSOLETE *(int *) deprecated_registers = 0;
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// OBSOLETE
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// OBSOLETE fetch_inferior_registers (PS_REGNUM);
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// OBSOLETE fetch_inferior_registers (BADVADDR_REGNUM);
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// OBSOLETE fetch_inferior_registers (CAUSE_REGNUM);
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// OBSOLETE fetch_inferior_registers (FCRIR_REGNUM);
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// OBSOLETE }
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// OBSOLETE
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// OBSOLETE if (regno == -1 || (ZERO_REGNUM < regno && regno <= PC_REGNUM))
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// OBSOLETE {
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// OBSOLETE #if 1
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// OBSOLETE /* Mach 3.0 saves thread's FP to MACH_FP_REGNUM.
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// OBSOLETE * GDB wants assigns a pseudo register FP_REGNUM for frame pointer.
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// OBSOLETE *
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// OBSOLETE * @@@ Here I assume (!) that gdb's FP has the value that
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// OBSOLETE * should go to threads frame pointer. If not true, this
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// OBSOLETE * fails badly!!!!!
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// OBSOLETE */
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// OBSOLETE memcpy (&deprecated_registers[REGISTER_BYTE (MACH_FP_REGNUM)],
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// OBSOLETE &deprecated_registers[REGISTER_BYTE (FP_REGNUM)],
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// OBSOLETE REGISTER_RAW_SIZE (FP_REGNUM));
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// OBSOLETE #endif
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// OBSOLETE
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// OBSOLETE /* Save gdb's regs 1..31 to thread saved regs 1..31
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// OBSOLETE * Luckily, they are contiquous
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// OBSOLETE */
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// OBSOLETE STORE_REGS (state, 1, 31);
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// OBSOLETE
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// OBSOLETE /* Save mdlo, mdhi */
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// OBSOLETE STORE_REGS (state, LO_REGNUM, 2);
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// OBSOLETE
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// OBSOLETE /* Save PC */
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// OBSOLETE STORE_REGS (state, PC_REGNUM, 1);
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// OBSOLETE
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// OBSOLETE ret = thread_set_state (current_thread,
|
|
// OBSOLETE MIPS_THREAD_STATE,
|
|
// OBSOLETE state,
|
|
// OBSOLETE MIPS_FLOAT_STATE_COUNT);
|
|
// OBSOLETE CHK ("store inferior regs : thread_set_state", ret);
|
|
// OBSOLETE }
|
|
// OBSOLETE
|
|
// OBSOLETE if (regno == -1 || regno >= FP0_REGNUM)
|
|
// OBSOLETE {
|
|
// OBSOLETE /* If thread has floating state, save it */
|
|
// OBSOLETE if (read_register (PS_REGNUM) & MIPS_STATUS_USE_COP1)
|
|
// OBSOLETE {
|
|
// OBSOLETE /* Do NOT save FCRIR_REGNUM */
|
|
// OBSOLETE STORE_REGS (state, FP0_REGNUM, 33);
|
|
// OBSOLETE
|
|
// OBSOLETE ret = thread_set_state (current_thread,
|
|
// OBSOLETE MIPS_FLOAT_STATE,
|
|
// OBSOLETE state,
|
|
// OBSOLETE MIPS_FLOAT_STATE_COUNT);
|
|
// OBSOLETE CHK ("store inferior registers (floats): thread_set_state", ret);
|
|
// OBSOLETE }
|
|
// OBSOLETE else if (regno != -1)
|
|
// OBSOLETE message
|
|
// OBSOLETE ("Thread does not use floating point unit, floating regs not saved");
|
|
// OBSOLETE }
|
|
// OBSOLETE }
|