127 lines
3.7 KiB
C
127 lines
3.7 KiB
C
/* PPC linux native support.
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Copyright (C) 1988, 1989, 1991, 1992, 1994, 1996 Free Software Foundation, Inc.
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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, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "frame.h"
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#include "inferior.h"
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#include "gdbcore.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <signal.h>
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#include <sys/user.h>
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#include <sys/ioctl.h>
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#include <sys/wait.h>
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#include <fcntl.h>
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#include <sys/procfs.h>
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/* Prototypes for supply_gregset etc. */
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#include "gregset.h"
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int
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kernel_u_size (void)
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{
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return (sizeof (struct user));
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}
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static int regmap[] =
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{PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7,
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PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_R13, PT_R14, PT_R15,
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PT_R16, PT_R17, PT_R18, PT_R19, PT_R20, PT_R21, PT_R22, PT_R23,
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PT_R24, PT_R25, PT_R26, PT_R27, PT_R28, PT_R29, PT_R30, PT_R31,
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PT_FPR0, PT_FPR0 + 2, PT_FPR0 + 4, PT_FPR0 + 6, PT_FPR0 + 8, PT_FPR0 + 10, PT_FPR0 + 12, PT_FPR0 + 14,
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PT_FPR0 + 16, PT_FPR0 + 18, PT_FPR0 + 20, PT_FPR0 + 22, PT_FPR0 + 24, PT_FPR0 + 26, PT_FPR0 + 28, PT_FPR0 + 30,
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PT_FPR0 + 32, PT_FPR0 + 34, PT_FPR0 + 36, PT_FPR0 + 38, PT_FPR0 + 40, PT_FPR0 + 42, PT_FPR0 + 44, PT_FPR0 + 46,
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PT_FPR0 + 48, PT_FPR0 + 50, PT_FPR0 + 52, PT_FPR0 + 54, PT_FPR0 + 56, PT_FPR0 + 58, PT_FPR0 + 60, PT_FPR0 + 62,
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PT_NIP, PT_MSR, PT_CCR, PT_LNK, PT_CTR, PT_XER, PT_MQ};
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int
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ppc_register_u_addr (int ustart, int regnum)
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{
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return (ustart + 4 * regmap[regnum]);
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}
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void
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supply_gregset (gdb_gregset_t *gregsetp)
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{
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int regi;
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register greg_t *regp = (greg_t *) gregsetp;
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for (regi = 0; regi < 32; regi++)
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supply_register (regi, (char *) (regp + regi));
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for (regi = FIRST_UISA_SP_REGNUM; regi <= LAST_UISA_SP_REGNUM; regi++)
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supply_register (regi, (char *) (regp + regmap[regi]));
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}
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void
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fill_gregset (gdb_gregset_t *gregsetp, int regno)
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{
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int regi;
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greg_t *regp = (greg_t *) gregsetp;
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#define COPY_REG(_idx_,_regi_) \
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if ((regno == -1) || regno == _regi_) \
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memcpy (regp + _idx_, ®isters[REGISTER_BYTE (_regi_)], \
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REGISTER_RAW_SIZE (_regi_))
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for (regi = 0; regi < 32; regi++)
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{
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COPY_REG (regmap[regi], regi);
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}
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for (regi = FIRST_UISA_SP_REGNUM; regi <= LAST_UISA_SP_REGNUM; regi++)
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{
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COPY_REG (regmap[regi], regi);
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}
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}
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void
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supply_fpregset (gdb_fpregset_t * fpregsetp)
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{
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int regi;
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for (regi = 0; regi < 32; regi++)
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{
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supply_register (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
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}
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}
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/* Given a pointer to a floating point register set in /proc format
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(fpregset_t *), update the register specified by REGNO from gdb's idea
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of the current floating point register set. If REGNO is -1, update
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them all. */
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void
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fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
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{
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int regi;
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char *to;
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char *from;
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for (regi = 0; regi < 32; regi++)
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{
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if ((regno == -1) || (regno == FP0_REGNUM + regi))
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{
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from = (char *) ®isters[REGISTER_BYTE (FP0_REGNUM + regi)];
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to = (char *) (*fpregsetp + regi);
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memcpy (to, from, REGISTER_RAW_SIZE (FP0_REGNUM + regi));
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}
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}
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}
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