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2188cbdd51
* config/rs6000/tm-rs6000.h (STAB_REG_TO_REGNUM): Remove definition, it is now multiarched. * ppc-tdep.h (struct gdbarch_tdep): Move from rs6000-tdep.c. Add fields for special register numbers. * rs6000-tdep.c (rs6000_gdbarch_init): Initialize new tdep special regnum fields. (rs6000_saved_pc_after_call): Use gdbarch_tdep registers fields instead of hardcoded macros. (branch_dest, rs6000_pop_frame, rs6000_fix_call_dummy, ppc_push_return_address, rs6000_frame_saved_pc, frame_get_saved_regs, rs6000_frame_chain, rs6000_store_return_value): Ditto. (rs6000_stab_reg_to_regnum): New function. * ppcnbsd-nat.c (fetch_inferior_registers, store_inferior_registers, fetch_core_registers): Ditto. * ppc-linux-tdep.c (ppc_linux_in_sigtramp, ppc_linux_frame_init_saved_regs): Ditto. * ppc-linux-nat.c (ppc_register_u_addr, supply_gregset, fill_gregset): Ditto. * ppc-bdm.c (bdm_ppc_fetch_registers, bdm_ppc_store_registers): Ditto.
183 lines
6.1 KiB
C
183 lines
6.1 KiB
C
/* PPC linux native support.
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Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001
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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 "regcache.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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#include "ppc-tdep.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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/* *INDENT-OFF* */
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/* registers layout, as presented by the ptrace interface:
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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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/* *INDENT_ON * */
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int
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ppc_register_u_addr (int ustart, int regno)
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{
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int u_addr = -1;
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/* General purpose registers occupy 1 slot each in the buffer */
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if (regno >= gdbarch_tdep (current_gdbarch)->ppc_gp0_regnum
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&& regno <= gdbarch_tdep (current_gdbarch)->ppc_gplast_regnum )
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u_addr = (ustart + (PT_R0 + regno) * 4);
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/* Floating point regs: 2 slots each */
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if (regno >= FP0_REGNUM && regno <= FPLAST_REGNUM)
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u_addr = (ustart + (PT_FPR0 + (regno - FP0_REGNUM) * 2) * 4);
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/* UISA special purpose registers: 1 slot each */
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if (regno == PC_REGNUM)
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u_addr = ustart + PT_NIP * 4;
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if (regno == gdbarch_tdep (current_gdbarch)->ppc_lr_regnum)
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u_addr = ustart + PT_LNK * 4;
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if (regno == gdbarch_tdep (current_gdbarch)->ppc_cr_regnum)
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u_addr = ustart + PT_CCR * 4;
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if (regno == gdbarch_tdep (current_gdbarch)->ppc_xer_regnum)
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u_addr = ustart + PT_XER * 4;
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if (regno == gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum)
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u_addr = ustart + PT_CTR * 4;
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if (regno == gdbarch_tdep (current_gdbarch)->ppc_mq_regnum)
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u_addr = ustart + PT_MQ * 4;
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if (regno == gdbarch_tdep (current_gdbarch)->ppc_ps_regnum)
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u_addr = ustart + PT_MSR * 4;
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return u_addr;
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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 elf_greg_t *regp = (elf_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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supply_register (PC_REGNUM, (char *) (regp + PT_NIP));
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supply_register (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum,
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(char *) (regp + PT_LNK));
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supply_register (gdbarch_tdep (current_gdbarch)->ppc_cr_regnum,
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(char *) (regp + PT_CCR));
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supply_register (gdbarch_tdep (current_gdbarch)->ppc_xer_regnum,
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(char *) (regp + PT_XER));
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supply_register (gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum,
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(char *) (regp + PT_CTR));
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supply_register (gdbarch_tdep (current_gdbarch)->ppc_mq_regnum,
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(char *) (regp + PT_MQ));
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supply_register (gdbarch_tdep (current_gdbarch)->ppc_ps_regnum,
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(char *) (regp + PT_MSR));
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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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elf_greg_t *regp = (elf_greg_t *) gregsetp;
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for (regi = 0; regi < 32; regi++)
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{
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if ((regno == -1) || regno == regi)
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regcache_collect (regi, regp + PT_R0 + regi);
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}
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if ((regno == -1) || regno == PC_REGNUM)
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regcache_collect (PC_REGNUM, regp + PT_NIP);
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if ((regno == -1)
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|| regno == gdbarch_tdep (current_gdbarch)->ppc_lr_regnum)
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regcache_collect (gdbarch_tdep (current_gdbarch)->ppc_lr_regnum,
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regp + PT_LNK);
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if ((regno == -1)
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|| regno == gdbarch_tdep (current_gdbarch)->ppc_cr_regnum)
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regcache_collect (gdbarch_tdep (current_gdbarch)->ppc_cr_regnum,
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regp + PT_CCR);
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if ((regno == -1)
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|| regno == gdbarch_tdep (current_gdbarch)->ppc_xer_regnum)
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regcache_collect (gdbarch_tdep (current_gdbarch)->ppc_xer_regnum,
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regp + PT_XER);
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if ((regno == -1)
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|| regno == gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum)
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regcache_collect (gdbarch_tdep (current_gdbarch)->ppc_ctr_regnum,
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regp + PT_CTR);
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if ((regno == -1)
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|| regno == gdbarch_tdep (current_gdbarch)->ppc_mq_regnum)
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regcache_collect (gdbarch_tdep (current_gdbarch)->ppc_mq_regnum,
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regp + PT_MQ);
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if ((regno == -1)
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|| regno == gdbarch_tdep (current_gdbarch)->ppc_ps_regnum)
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regcache_collect (gdbarch_tdep (current_gdbarch)->ppc_ps_regnum,
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regp + PT_MSR);
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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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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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regcache_collect (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
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}
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}
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