diff options
Diffstat (limited to 'gdb/i386gnu-nat.c')
| -rw-r--r-- | gdb/i386gnu-nat.c | 171 |
1 files changed, 91 insertions, 80 deletions
diff --git a/gdb/i386gnu-nat.c b/gdb/i386gnu-nat.c index 6ed92c1..6834ea0 100644 --- a/gdb/i386gnu-nat.c +++ b/gdb/i386gnu-nat.c @@ -1,21 +1,22 @@ /* Low level interface to I386 running the GNU Hurd Copyright (C) 1992, 1995, 1996 Free Software Foundation, Inc. -This file is part of GDB. + 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 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. + 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. */ + 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 "inferior.h" @@ -37,7 +38,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <target.h> /* @@@ Should move print_387_status() to i387-tdep.c */ -extern void print_387_control_word (); /* i387-tdep.h */ +extern void print_387_control_word (); /* i387-tdep.h */ extern void print_387_status_word (); /* Find offsets to thread states at compile time. @@ -51,12 +52,12 @@ extern void print_387_status_word (); * location where the gdb registers[i] is stored. */ -static int reg_offset[] = +static int reg_offset[] = { - REG_OFFSET(eax), REG_OFFSET(ecx), REG_OFFSET(edx), REG_OFFSET(ebx), - REG_OFFSET(uesp), REG_OFFSET(ebp), REG_OFFSET(esi), REG_OFFSET(edi), - REG_OFFSET(eip), REG_OFFSET(efl), REG_OFFSET(cs), REG_OFFSET(ss), - REG_OFFSET(ds), REG_OFFSET(es), REG_OFFSET(fs), REG_OFFSET(gs) + REG_OFFSET (eax), REG_OFFSET (ecx), REG_OFFSET (edx), REG_OFFSET (ebx), + REG_OFFSET (uesp), REG_OFFSET (ebp), REG_OFFSET (esi), REG_OFFSET (edi), + REG_OFFSET (eip), REG_OFFSET (efl), REG_OFFSET (cs), REG_OFFSET (ss), + REG_OFFSET (ds), REG_OFFSET (es), REG_OFFSET (fs), REG_OFFSET (gs) }; #define REG_ADDR(state,regnum) ((char *)(state)+reg_offset[regnum]) @@ -84,29 +85,29 @@ gnu_fetch_registers (int reg) { struct proc *thread; thread_state_t state; - - inf_update_procs (current_inferior); /* Make sure we know about new threads. */ + + inf_update_procs (current_inferior); /* Make sure we know about new threads. */ thread = inf_tid_to_thread (current_inferior, inferior_pid); - if (! thread) + if (!thread) error ("fetch inferior registers: %d: Invalid thread", inferior_pid); state = proc_get_state (thread, 0); - if (! state) + if (!state) warning ("Couldn't fetch register %s from %s (invalid thread).", REGISTER_NAME (reg), proc_string (thread)); else if (reg >= 0) { proc_debug (thread, "fetching register: %s", REGISTER_NAME (reg)); - supply_register (reg, REG_ADDR(state, reg)); + supply_register (reg, REG_ADDR (state, reg)); thread->fetched_regs |= (1 << reg); } else { proc_debug (thread, "fetching all registers"); - for (reg = 0; reg < NUM_REGS; reg++) - supply_register (reg, REG_ADDR(state, reg)); + for (reg = 0; reg < NUM_REGS; reg++) + supply_register (reg, REG_ADDR (state, reg)); thread->fetched_regs = ~0; } } @@ -125,28 +126,28 @@ gnu_store_registers (reg) int was_aborted, was_valid; thread_state_t state; thread_state_data_t old_state; - - inf_update_procs (current_inferior); /* Make sure we know about new threads. */ + + inf_update_procs (current_inferior); /* Make sure we know about new threads. */ thread = inf_tid_to_thread (current_inferior, inferior_pid); - if (! thread) + if (!thread) error ("store inferior registers: %d: Invalid thread", inferior_pid); proc_debug (thread, "storing register %s.", REGISTER_NAME (reg)); was_aborted = thread->aborted; was_valid = thread->state_valid; - if (! was_aborted && was_valid) + if (!was_aborted && was_valid) bcopy (&thread->state, &old_state, sizeof (old_state)); state = proc_get_state (thread, 1); - if (! state) + if (!state) warning ("Couldn't store register %s from %s (invalid thread).", REGISTER_NAME (reg), proc_string (thread)); else { - if (! was_aborted && was_valid) + if (!was_aborted && was_valid) /* See which registers have changed after aborting the thread. */ { int check_reg; @@ -175,7 +176,7 @@ gnu_store_registers (reg) else { proc_debug (thread, "storing all registers"); - for (reg = 0; reg < NUM_REGS; reg++) + for (reg = 0; reg < NUM_REGS; reg++) STORE_REGS (state, reg, 1); } } @@ -186,7 +187,7 @@ gnu_store_registers (reg) * * i387 status dumper. See also i387-tdep.c */ -struct env387 +struct env387 { unsigned short control; unsigned short r0; @@ -215,80 +216,90 @@ print_387_status (status, ep) int top; int fpreg; unsigned char *p; - + bothstatus = ((status != 0) && (ep->status != 0)); - if (status != 0) + if (status != 0) { if (bothstatus) printf_unfiltered ("u: "); print_387_status_word (status); } - - if (ep->status != 0) + + if (ep->status != 0) { if (bothstatus) printf_unfiltered ("e: "); print_387_status_word (ep->status); } - + print_387_control_word (ep->control); printf_unfiltered ("last exception: "); - printf_unfiltered ("opcode %s; ", local_hex_string(ep->opcode)); - printf_unfiltered ("pc %s:", local_hex_string(ep->code_seg)); - printf_unfiltered ("%s; ", local_hex_string(ep->eip)); - printf_unfiltered ("operand %s", local_hex_string(ep->operand_seg)); - printf_unfiltered (":%s\n", local_hex_string(ep->operand)); - + printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode)); + printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg)); + printf_unfiltered ("%s; ", local_hex_string (ep->eip)); + printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg)); + printf_unfiltered (":%s\n", local_hex_string (ep->operand)); + top = (ep->status >> 11) & 7; - + printf_unfiltered ("regno tag msb lsb value\n"); - for (fpreg = 7; fpreg >= 0; fpreg--) + for (fpreg = 7; fpreg >= 0; fpreg--) { double val; - + printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg); - - switch ((ep->tag >> (fpreg * 2)) & 3) + + switch ((ep->tag >> (fpreg * 2)) & 3) { - case 0: printf_unfiltered ("valid "); break; - case 1: printf_unfiltered ("zero "); break; - case 2: printf_unfiltered ("trap "); break; - case 3: printf_unfiltered ("empty "); break; + case 0: + printf_unfiltered ("valid "); + break; + case 1: + printf_unfiltered ("zero "); + break; + case 2: + printf_unfiltered ("trap "); + break; + case 3: + printf_unfiltered ("empty "); + break; } for (i = 9; i >= 0; i--) printf_unfiltered ("%02x", ep->regs[fpreg][i]); - - floatformat_to_double (&floatformat_i387_ext, (char *)ep->regs[fpreg], - &val); + + floatformat_to_double (&floatformat_i387_ext, (char *) ep->regs[fpreg], + &val); printf_unfiltered (" %g\n", val); } if (ep->r0) - printf_unfiltered ("warning: reserved0 is %s\n", local_hex_string(ep->r0)); + printf_unfiltered ("warning: reserved0 is %s\n", local_hex_string (ep->r0)); if (ep->r1) - printf_unfiltered ("warning: reserved1 is %s\n", local_hex_string(ep->r1)); + printf_unfiltered ("warning: reserved1 is %s\n", local_hex_string (ep->r1)); if (ep->r2) - printf_unfiltered ("warning: reserved2 is %s\n", local_hex_string(ep->r2)); + printf_unfiltered ("warning: reserved2 is %s\n", local_hex_string (ep->r2)); if (ep->r3) - printf_unfiltered ("warning: reserved3 is %s\n", local_hex_string(ep->r3)); + printf_unfiltered ("warning: reserved3 is %s\n", local_hex_string (ep->r3)); } - + /* * values that go into fp_kind (from <i386/fpreg.h>) */ -#define FP_NO 0 /* no fp chip, no emulator (no fp support) */ -#define FP_SW 1 /* no fp chip, using software emulator */ -#define FP_HW 2 /* chip present bit */ -#define FP_287 2 /* 80287 chip present */ -#define FP_387 3 /* 80387 chip present */ +#define FP_NO 0 /* no fp chip, no emulator (no fp support) */ +#define FP_SW 1 /* no fp chip, using software emulator */ +#define FP_HW 2 /* chip present bit */ +#define FP_287 2 /* 80287 chip present */ +#define FP_387 3 /* 80387 chip present */ -typedef struct fpstate { +typedef struct fpstate +{ #if 1 - unsigned char state[FP_STATE_BYTES]; /* "hardware" state */ + unsigned char state[FP_STATE_BYTES]; /* "hardware" state */ #else - struct env387 state; /* Actually this */ + struct env387 state; /* Actually this */ #endif - int status; /* Duplicate status */ -} *fpstate_t; + int status; /* Duplicate status */ +} + *fpstate_t; /* Mach 3 specific routines. */ @@ -301,7 +312,7 @@ get_i387_state (fstate) unsigned int fsCnt = i386_FLOAT_STATE_COUNT; struct i386_float_state *fsp; struct proc *thread = inf_tid_to_thread (current_inferior, inferior_pid); - + if (!thread) error ("get_i387_state: Invalid thread"); @@ -315,7 +326,7 @@ get_i387_state (fstate) return 0; } - fsp = (struct i386_float_state *)state; + fsp = (struct i386_float_state *) state; /* The 387 chip (also 486 counts) or a software emulator? */ if (!fsp->initialized || (fsp->fpkind != FP_387 && fsp->fpkind != FP_SW)) return 0; @@ -327,7 +338,7 @@ get_i387_state (fstate) fstate->status = fsp->exc_status; - memcpy (fstate->state, (char *)&fsp->hw_state, FP_STATE_BYTES); + memcpy (fstate->state, (char *) &fsp->hw_state, FP_STATE_BYTES); return 1; } @@ -336,22 +347,22 @@ get_i387_state (fstate) * This is called by "info float" command */ void -i386_mach3_float_info() +i386_mach3_float_info () { - char buf [sizeof (struct fpstate) + 2 * sizeof (int)]; + char buf[sizeof (struct fpstate) + 2 * sizeof (int)]; int valid = 0; fpstate_t fps; - + if (target_has_execution) valid = get_i387_state (buf); - if (!valid) + if (!valid) { warning ("no floating point status saved"); return; } - + fps = (fpstate_t) buf; - print_387_status (fps->status, (struct env387 *)fps->state); + print_387_status (fps->status, (struct env387 *) fps->state); } |