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[/] [or1k/] [trunk/] [gdb-5.3/] [gdb/] [i386aix-nat.c] - Rev 1773
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// OBSOLETE /* Intel 386 native support. // OBSOLETE Copyright 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, // OBSOLETE 2000, 2001 Free Software Foundation, Inc. // OBSOLETE // OBSOLETE This file is part of GDB. // OBSOLETE // OBSOLETE This program is free software; you can redistribute it and/or modify // OBSOLETE it under the terms of the GNU General Public License as published by // OBSOLETE the Free Software Foundation; either version 2 of the License, or // OBSOLETE (at your option) any later version. // OBSOLETE // OBSOLETE This program is distributed in the hope that it will be useful, // OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of // OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // OBSOLETE GNU General Public License for more details. // OBSOLETE // OBSOLETE You should have received a copy of the GNU General Public License // OBSOLETE along with this program; if not, write to the Free Software // OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, // OBSOLETE Boston, MA 02111-1307, USA. */ // OBSOLETE // OBSOLETE #include "defs.h" // OBSOLETE #include "frame.h" // OBSOLETE #include "inferior.h" // OBSOLETE #include "language.h" // OBSOLETE #include "gdbcore.h" // OBSOLETE #include "regcache.h" // OBSOLETE // OBSOLETE #ifdef USG // OBSOLETE #include <sys/types.h> // OBSOLETE #endif // OBSOLETE // OBSOLETE #include <sys/param.h> // OBSOLETE #include <sys/dir.h> // OBSOLETE #include <signal.h> // OBSOLETE #include <sys/user.h> // OBSOLETE #include <sys/ioctl.h> // OBSOLETE #include <fcntl.h> // OBSOLETE // OBSOLETE #include <sys/file.h> // OBSOLETE #include "gdb_stat.h" // OBSOLETE // OBSOLETE #include <stddef.h> // OBSOLETE #include <sys/ptrace.h> // OBSOLETE // OBSOLETE /* Does AIX define this in <errno.h>? */ // OBSOLETE extern int errno; // OBSOLETE // OBSOLETE #ifdef HAVE_SYS_REG_H // OBSOLETE #include <sys/reg.h> // OBSOLETE #endif // OBSOLETE // OBSOLETE #include "floatformat.h" // OBSOLETE // OBSOLETE #include "target.h" // OBSOLETE // OBSOLETE static void fetch_core_registers (char *, unsigned, int, CORE_ADDR); // OBSOLETE // OBSOLETE // OBSOLETE /* this table must line up with REGISTER_NAMES in tm-i386v.h */ // OBSOLETE /* symbols like 'EAX' come from <sys/reg.h> */ // OBSOLETE static int regmap[] = // OBSOLETE { // OBSOLETE EAX, ECX, EDX, EBX, // OBSOLETE USP, EBP, ESI, EDI, // OBSOLETE EIP, EFL, CS, SS, // OBSOLETE DS, ES, FS, GS, // OBSOLETE }; // OBSOLETE // OBSOLETE /* blockend is the value of u.u_ar0, and points to the // OBSOLETE * place where GS is stored // OBSOLETE */ // OBSOLETE // OBSOLETE int // OBSOLETE i386_register_u_addr (int blockend, int regnum) // OBSOLETE { // OBSOLETE #if 0 // OBSOLETE /* this will be needed if fp registers are reinstated */ // OBSOLETE /* for now, you can look at them with 'info float' // OBSOLETE * sys5 wont let you change them with ptrace anyway // OBSOLETE */ // OBSOLETE if (regnum >= FP0_REGNUM && regnum <= FP7_REGNUM) // OBSOLETE { // OBSOLETE int ubase, fpstate; // OBSOLETE struct user u; // OBSOLETE ubase = blockend + 4 * (SS + 1) - KSTKSZ; // OBSOLETE fpstate = ubase + ((char *) &u.u_fpstate - (char *) &u); // OBSOLETE return (fpstate + 0x1c + 10 * (regnum - FP0_REGNUM)); // OBSOLETE } // OBSOLETE else // OBSOLETE #endif // OBSOLETE return (blockend + 4 * regmap[regnum]); // OBSOLETE // OBSOLETE } // OBSOLETE // OBSOLETE /* The code below only work on the aix ps/2 (i386-ibm-aix) - // OBSOLETE * mtranle@paris - Sat Apr 11 10:34:12 1992 // OBSOLETE */ // OBSOLETE // OBSOLETE struct env387 // OBSOLETE { // OBSOLETE unsigned short control; // OBSOLETE unsigned short r0; // OBSOLETE unsigned short status; // OBSOLETE unsigned short r1; // OBSOLETE unsigned short tag; // OBSOLETE unsigned short r2; // OBSOLETE unsigned long eip; // OBSOLETE unsigned short code_seg; // OBSOLETE unsigned short opcode; // OBSOLETE unsigned long operand; // OBSOLETE unsigned short operand_seg; // OBSOLETE unsigned short r3; // OBSOLETE unsigned char regs[8][10]; // OBSOLETE }; // OBSOLETE // OBSOLETE static // OBSOLETE print_387_status (unsigned short status, struct env387 *ep) // OBSOLETE { // OBSOLETE int i; // OBSOLETE int bothstatus; // OBSOLETE int top; // OBSOLETE int fpreg; // OBSOLETE unsigned char *p; // OBSOLETE // OBSOLETE bothstatus = ((status != 0) && (ep->status != 0)); // OBSOLETE if (status != 0) // OBSOLETE { // OBSOLETE if (bothstatus) // OBSOLETE printf_unfiltered ("u: "); // OBSOLETE print_387_status_word (status); // OBSOLETE } // OBSOLETE // OBSOLETE if (ep->status != 0) // OBSOLETE { // OBSOLETE if (bothstatus) // OBSOLETE printf_unfiltered ("e: "); // OBSOLETE print_387_status_word (ep->status); // OBSOLETE } // OBSOLETE // OBSOLETE print_387_control_word (ep->control); // OBSOLETE printf_unfiltered ("last exception: "); // OBSOLETE printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode)); // OBSOLETE printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg)); // OBSOLETE printf_unfiltered ("%s; ", local_hex_string (ep->eip)); // OBSOLETE printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg)); // OBSOLETE printf_unfiltered (":%s\n", local_hex_string (ep->operand)); // OBSOLETE // OBSOLETE top = ((ep->status >> 11) & 7); // OBSOLETE // OBSOLETE printf_unfiltered ("regno tag msb lsb value\n"); // OBSOLETE for (fpreg = 7; fpreg >= 0; fpreg--) // OBSOLETE { // OBSOLETE double val; // OBSOLETE // OBSOLETE printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg); // OBSOLETE // OBSOLETE switch ((ep->tag >> ((7 - fpreg) * 2)) & 3) // OBSOLETE { // OBSOLETE case 0: // OBSOLETE printf_unfiltered ("valid "); // OBSOLETE break; // OBSOLETE case 1: // OBSOLETE printf_unfiltered ("zero "); // OBSOLETE break; // OBSOLETE case 2: // OBSOLETE printf_unfiltered ("trap "); // OBSOLETE break; // OBSOLETE case 3: // OBSOLETE printf_unfiltered ("empty "); // OBSOLETE break; // OBSOLETE } // OBSOLETE for (i = 9; i >= 0; i--) // OBSOLETE printf_unfiltered ("%02x", ep->regs[fpreg][i]); // OBSOLETE // OBSOLETE i387_to_double ((char *) ep->regs[fpreg], (char *) &val); // OBSOLETE printf_unfiltered (" %#g\n", val); // OBSOLETE } // OBSOLETE } // OBSOLETE // OBSOLETE static struct env387 core_env387; // OBSOLETE // OBSOLETE void // OBSOLETE i386_float_info (void) // OBSOLETE { // OBSOLETE struct env387 fps; // OBSOLETE int fpsaved = 0; // OBSOLETE /* We need to reverse the order of the registers. Apparently AIX stores // OBSOLETE the highest-numbered ones first. */ // OBSOLETE struct env387 fps_fixed; // OBSOLETE int i; // OBSOLETE // OBSOLETE if (! ptid_equal (inferior_ptid, null_ptid)) // OBSOLETE { // OBSOLETE char buf[10]; // OBSOLETE unsigned short status; // OBSOLETE // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, // OBSOLETE offsetof (struct env387, status)); // OBSOLETE memcpy (&status, buf, sizeof (status)); // OBSOLETE fpsaved = status; // OBSOLETE } // OBSOLETE else // OBSOLETE { // OBSOLETE if ((fpsaved = core_env387.status) != 0) // OBSOLETE memcpy (&fps, &core_env387, sizeof (fps)); // OBSOLETE } // OBSOLETE // OBSOLETE if (fpsaved == 0) // OBSOLETE { // OBSOLETE printf_unfiltered ("no floating point status saved\n"); // OBSOLETE return; // OBSOLETE } // OBSOLETE // OBSOLETE if (! ptid_equal (inferior_ptid, null_ptid)) // OBSOLETE { // OBSOLETE int offset; // OBSOLETE for (offset = 0; offset < sizeof (fps); offset += 10) // OBSOLETE { // OBSOLETE char buf[10]; // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, offset); // OBSOLETE memcpy ((char *) &fps.control + offset, buf, // OBSOLETE MIN (10, sizeof (fps) - offset)); // OBSOLETE } // OBSOLETE } // OBSOLETE fps_fixed = fps; // OBSOLETE for (i = 0; i < 8; ++i) // OBSOLETE memcpy (fps_fixed.regs[i], fps.regs[7 - i], 10); // OBSOLETE print_387_status (0, &fps_fixed); // OBSOLETE } // OBSOLETE // OBSOLETE /* Fetch one register. */ // OBSOLETE static void // OBSOLETE fetch_register (int regno) // OBSOLETE { // OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; // OBSOLETE if (regno < FP0_REGNUM) // OBSOLETE *(int *) buf = ptrace (PT_READ_GPR, PIDGET (inferior_ptid), // OBSOLETE PT_REG (regmap[regno]), 0, 0); // OBSOLETE else // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, // OBSOLETE (regno - FP0_REGNUM) * 10 + offsetof (struct env387, regs)); // OBSOLETE supply_register (regno, buf); // OBSOLETE } // OBSOLETE // OBSOLETE void // OBSOLETE fetch_inferior_registers (int regno) // OBSOLETE { // OBSOLETE if (regno < 0) // OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) // OBSOLETE fetch_register (regno); // OBSOLETE else // OBSOLETE fetch_register (regno); // OBSOLETE } // OBSOLETE // OBSOLETE /* store one register */ // OBSOLETE static void // OBSOLETE store_register (int regno) // OBSOLETE { // OBSOLETE char buf[80]; // OBSOLETE errno = 0; // OBSOLETE if (regno < FP0_REGNUM) // OBSOLETE ptrace (PT_WRITE_GPR, PIDGET (inferior_ptid), PT_REG (regmap[regno]), // OBSOLETE *(int *) ®isters[REGISTER_BYTE (regno)], 0); // OBSOLETE else // OBSOLETE ptrace (PT_WRITE_FPR, PIDGET (inferior_ptid), // OBSOLETE ®isters[REGISTER_BYTE (regno)], // OBSOLETE (regno - FP0_REGNUM) * 10 + offsetof (struct env387, regs)); // OBSOLETE // OBSOLETE if (errno != 0) // OBSOLETE { // OBSOLETE sprintf (buf, "writing register number %d", regno); // OBSOLETE perror_with_name (buf); // OBSOLETE } // OBSOLETE } // OBSOLETE // OBSOLETE /* Store our register values back into the inferior. // OBSOLETE If REGNO is -1, do this for all registers. // OBSOLETE Otherwise, REGNO specifies which register (so we can save time). */ // OBSOLETE void // OBSOLETE store_inferior_registers (int regno) // OBSOLETE { // OBSOLETE if (regno < 0) // OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) // OBSOLETE store_register (regno); // OBSOLETE else // OBSOLETE store_register (regno); // OBSOLETE } // OBSOLETE // OBSOLETE #ifndef CD_AX /* defined in sys/i386/coredump.h */ // OBSOLETE #define CD_AX 0 // OBSOLETE #define CD_BX 1 // OBSOLETE #define CD_CX 2 // OBSOLETE #define CD_DX 3 // OBSOLETE #define CD_SI 4 // OBSOLETE #define CD_DI 5 // OBSOLETE #define CD_BP 6 // OBSOLETE #define CD_SP 7 // OBSOLETE #define CD_FL 8 // OBSOLETE #define CD_IP 9 // OBSOLETE #define CD_CS 10 // OBSOLETE #define CD_DS 11 // OBSOLETE #define CD_ES 12 // OBSOLETE #define CD_FS 13 // OBSOLETE #define CD_GS 14 // OBSOLETE #define CD_SS 15 // OBSOLETE #endif // OBSOLETE // OBSOLETE /* // OBSOLETE * The order here in core_regmap[] has to be the same as in // OBSOLETE * regmap[] above. // OBSOLETE */ // OBSOLETE static int core_regmap[] = // OBSOLETE { // OBSOLETE CD_AX, CD_CX, CD_DX, CD_BX, // OBSOLETE CD_SP, CD_BP, CD_SI, CD_DI, // OBSOLETE CD_IP, CD_FL, CD_CS, CD_SS, // OBSOLETE CD_DS, CD_ES, CD_FS, CD_GS, // OBSOLETE }; // OBSOLETE // OBSOLETE /* Provide registers to GDB from a core file. // OBSOLETE // OBSOLETE CORE_REG_SECT points to an array of bytes, which were obtained from // OBSOLETE a core file which BFD thinks might contain register contents. // OBSOLETE CORE_REG_SIZE is its size. // OBSOLETE // OBSOLETE WHICH says which register set corelow suspects this is: // OBSOLETE 0 --- the general-purpose register set // OBSOLETE 2 --- the floating-point register set // OBSOLETE // OBSOLETE REG_ADDR isn't used. */ // OBSOLETE // OBSOLETE static void // OBSOLETE fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, // OBSOLETE int which, CORE_ADDR reg_addr) // OBSOLETE { // OBSOLETE // OBSOLETE if (which == 0) // OBSOLETE { // OBSOLETE /* Integer registers */ // OBSOLETE // OBSOLETE #define cd_regs(n) ((int *)core_reg_sect)[n] // OBSOLETE #define regs(n) *((int *) ®isters[REGISTER_BYTE (n)]) // OBSOLETE // OBSOLETE int i; // OBSOLETE for (i = 0; i < FP0_REGNUM; i++) // OBSOLETE regs (i) = cd_regs (core_regmap[i]); // OBSOLETE } // OBSOLETE else if (which == 2) // OBSOLETE { // OBSOLETE /* Floating point registers */ // OBSOLETE // OBSOLETE if (core_reg_size >= sizeof (core_env387)) // OBSOLETE memcpy (&core_env387, core_reg_sect, core_reg_size); // OBSOLETE else // OBSOLETE fprintf_unfiltered (gdb_stderr, "Couldn't read float regs from core file\n"); // OBSOLETE } // OBSOLETE } // OBSOLETE // OBSOLETE // OBSOLETE /* Register that we are able to handle i386aix core file formats. // OBSOLETE FIXME: is this really bfd_target_unknown_flavour? */ // OBSOLETE // OBSOLETE static struct core_fns i386aix_core_fns = // OBSOLETE { // OBSOLETE bfd_target_unknown_flavour, /* core_flavour */ // OBSOLETE default_check_format, /* check_format */ // OBSOLETE default_core_sniffer, /* core_sniffer */ // OBSOLETE fetch_core_registers, /* core_read_registers */ // OBSOLETE NULL /* next */ // OBSOLETE }; // OBSOLETE // OBSOLETE void // OBSOLETE _initialize_core_i386aix (void) // OBSOLETE { // OBSOLETE add_core_fns (&i386aix_core_fns); // OBSOLETE }
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