/* PPC linux native support. Copyright 1988, 1989, 1991, 1992, 1994, 1996, 2000, 2001 Free Software Foundation, Inc. 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "defs.h" #include "frame.h" #include "inferior.h" #include "gdbcore.h" #include "regcache.h" #include <sys/types.h> #include <sys/param.h> #include <signal.h> #include <sys/user.h> #include <sys/ioctl.h> #include <sys/wait.h> #include <fcntl.h> #include <sys/procfs.h> /* Prototypes for supply_gregset etc. */ #include "gregset.h" int kernel_u_size (void) { return (sizeof (struct user)); } static int regmap[] = {PT_R0, PT_R1, PT_R2, PT_R3, PT_R4, PT_R5, PT_R6, PT_R7, PT_R8, PT_R9, PT_R10, PT_R11, PT_R12, PT_R13, PT_R14, PT_R15, PT_R16, PT_R17, PT_R18, PT_R19, PT_R20, PT_R21, PT_R22, PT_R23, PT_R24, PT_R25, PT_R26, PT_R27, PT_R28, PT_R29, PT_R30, PT_R31, PT_FPR0, PT_FPR0 + 2, PT_FPR0 + 4, PT_FPR0 + 6, PT_FPR0 + 8, PT_FPR0 + 10, PT_FPR0 + 12, PT_FPR0 + 14, PT_FPR0 + 16, PT_FPR0 + 18, PT_FPR0 + 20, PT_FPR0 + 22, PT_FPR0 + 24, PT_FPR0 + 26, PT_FPR0 + 28, PT_FPR0 + 30, PT_FPR0 + 32, PT_FPR0 + 34, PT_FPR0 + 36, PT_FPR0 + 38, PT_FPR0 + 40, PT_FPR0 + 42, PT_FPR0 + 44, PT_FPR0 + 46, PT_FPR0 + 48, PT_FPR0 + 50, PT_FPR0 + 52, PT_FPR0 + 54, PT_FPR0 + 56, PT_FPR0 + 58, PT_FPR0 + 60, PT_FPR0 + 62, PT_NIP, PT_MSR, PT_CCR, PT_LNK, PT_CTR, PT_XER, PT_MQ}; int ppc_register_u_addr (int ustart, int regnum) { return (ustart + 4 * regmap[regnum]); } void supply_gregset (gdb_gregset_t *gregsetp) { int regi; register elf_greg_t *regp = (elf_greg_t *) gregsetp; for (regi = 0; regi < 32; regi++) supply_register (regi, (char *) (regp + regi)); for (regi = FIRST_UISA_SP_REGNUM; regi <= LAST_UISA_SP_REGNUM; regi++) supply_register (regi, (char *) (regp + regmap[regi])); } void fill_gregset (gdb_gregset_t *gregsetp, int regno) { int regi; elf_greg_t *regp = (elf_greg_t *) gregsetp; #define COPY_REG(_idx_,_regi_) \ if ((regno == -1) || regno == _regi_) \ memcpy (regp + _idx_, ®isters[REGISTER_BYTE (_regi_)], \ REGISTER_RAW_SIZE (_regi_)) for (regi = 0; regi < 32; regi++) { COPY_REG (regmap[regi], regi); } for (regi = FIRST_UISA_SP_REGNUM; regi <= LAST_UISA_SP_REGNUM; regi++) { COPY_REG (regmap[regi], regi); } } void supply_fpregset (gdb_fpregset_t * fpregsetp) { int regi; for (regi = 0; regi < 32; regi++) { supply_register (FP0_REGNUM + regi, (char *) (*fpregsetp + regi)); } } /* Given a pointer to a floating point register set in /proc format (fpregset_t *), update the register specified by REGNO from gdb's idea of the current floating point register set. If REGNO is -1, update them all. */ void fill_fpregset (gdb_fpregset_t *fpregsetp, int regno) { int regi; char *to; char *from; for (regi = 0; regi < 32; regi++) { if ((regno == -1) || (regno == FP0_REGNUM + regi)) { from = (char *) ®isters[REGISTER_BYTE (FP0_REGNUM + regi)]; to = (char *) (*fpregsetp + regi); memcpy (to, from, REGISTER_RAW_SIZE (FP0_REGNUM + regi)); } } }