e676a15f0b
* coffread.c (coff_end_symtab): Cast 2nd arg of complain() to correct type. * defs.h (NORETURN): Define away for Lucid compiler. * remote.c (remote_timer, remote_interrupt): Signal handlers take one int arg. * ser-termios.c (serial_write, serial_close): Return whatever value the write/close call returns, rather than falling off end. * inferior.h (PTRACE_ARG3_TYPE): Third arg to ptrace is int on more systems than it is "char *". Define PTRACE_ARG3_TYPE to default to int. * infptrace.c, hppabsd-xdep.c, hppahpux-xdep.c, i386-xdep.c, inferior.h (call_ptrace): Use PTRACE_ARG3_TYPE to declare type of third arg. * a68v-xdep.c, arm-xdep.c, convex-xdep.c, hp300ux-xdep.c, infrun.c, m88k-xdep.c, mach386-xdep.c, mips-xdep.c, os68k-xdep.c, pyr-tdep.c, pyr-xdep.c, rs6000-xdep.c, sparc-xdep.c, sun3-xdep.c, sun386-xdep.c, symm-xdep.c, ultra3-xdep.c: Use PTRACE_ARG3_TYPE to cast ptrace argument 3. * sparc-xdep.c, a68v-xdep.c (fetch_inferior_registers, store_inferior_registers): Supply missing fourth argument to ptrace().
445 lines
12 KiB
C
445 lines
12 KiB
C
/* Sequent Symmetry host interface, for GDB when running under Unix.
|
||
Copyright 1986, 1987, 1989, 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
||
/* FIXME, some 387-specific items of use taken from i387-tdep.c -- ought to be
|
||
merged back in. */
|
||
|
||
#include "defs.h"
|
||
#include "frame.h"
|
||
#include "inferior.h"
|
||
#include "symtab.h"
|
||
|
||
#include <signal.h>
|
||
#include <sys/param.h>
|
||
#include <sys/user.h>
|
||
#include <sys/dir.h>
|
||
#include <sys/ioctl.h>
|
||
#include <sys/stat.h>
|
||
#include "gdbcore.h"
|
||
#include <fcntl.h>
|
||
#include <sgtty.h>
|
||
#define TERMINAL struct sgttyb
|
||
|
||
#include "gdbcore.h"
|
||
|
||
void
|
||
store_inferior_registers(regno)
|
||
int regno;
|
||
{
|
||
struct pt_regset regs;
|
||
int reg_tmp, i;
|
||
extern char registers[];
|
||
|
||
#if 0
|
||
/* PREPARE_TO_STORE deals with this. */
|
||
if (-1 == regno)
|
||
{
|
||
#endif
|
||
regs.pr_eax = *(int *)®isters[REGISTER_BYTE(0)];
|
||
regs.pr_ebx = *(int *)®isters[REGISTER_BYTE(5)];
|
||
regs.pr_ecx = *(int *)®isters[REGISTER_BYTE(2)];
|
||
regs.pr_edx = *(int *)®isters[REGISTER_BYTE(1)];
|
||
regs.pr_esi = *(int *)®isters[REGISTER_BYTE(6)];
|
||
regs.pr_edi = *(int *)®isters[REGISTER_BYTE(7)];
|
||
regs.pr_esp = *(int *)®isters[REGISTER_BYTE(14)];
|
||
regs.pr_ebp = *(int *)®isters[REGISTER_BYTE(15)];
|
||
regs.pr_eip = *(int *)®isters[REGISTER_BYTE(16)];
|
||
regs.pr_flags = *(int *)®isters[REGISTER_BYTE(17)];
|
||
for (i = 0; i < 31; i++) {
|
||
regs.pr_fpa.fpa_regs[i] =
|
||
*(int *)®isters[REGISTER_BYTE(FP1_REGNUM+i)];
|
||
}
|
||
#if 0
|
||
}
|
||
else
|
||
{
|
||
reg_tmp = *(int *)®isters[REGISTER_BYTE(regno)];
|
||
ptrace(XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) ®s, 0);
|
||
switch (regno)
|
||
{
|
||
case 0:
|
||
regs.pr_eax = *(int *)®isters[REGISTER_BYTE(0)];
|
||
break;
|
||
case 5:
|
||
regs.pr_ebx = *(int *)®isters[REGISTER_BYTE(5)];
|
||
break;
|
||
case 2:
|
||
regs.pr_ecx = *(int *)®isters[REGISTER_BYTE(2)];
|
||
break;
|
||
case 1:
|
||
regs.pr_edx = *(int *)®isters[REGISTER_BYTE(1)];
|
||
break;
|
||
case 6:
|
||
regs.pr_esi = *(int *)®isters[REGISTER_BYTE(6)];
|
||
break;
|
||
case 7:
|
||
regs.pr_edi = *(int *)®isters[REGISTER_BYTE(7)];
|
||
break;
|
||
case 15:
|
||
regs.pr_ebp = *(int *)®isters[REGISTER_BYTE(15)];
|
||
break;
|
||
case 14:
|
||
regs.pr_esp = *(int *)®isters[REGISTER_BYTE(14)];
|
||
break;
|
||
case 16:
|
||
regs.pr_eip = *(int *)®isters[REGISTER_BYTE(16)];
|
||
break;
|
||
case 17:
|
||
regs.pr_flags = *(int *)®isters[REGISTER_BYTE(17)];
|
||
break;
|
||
}
|
||
}
|
||
#endif /* 0 */
|
||
ptrace(XPT_WREGS, inferior_pid, (PTRACE_ARG3_TYPE) ®s, 0);
|
||
}
|
||
|
||
void
|
||
fetch_inferior_registers (regno)
|
||
int regno;
|
||
{
|
||
int i;
|
||
struct pt_regset regs;
|
||
extern char registers[];
|
||
|
||
registers_fetched ();
|
||
|
||
ptrace(XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) ®s, 0);
|
||
*(int *)®isters[REGISTER_BYTE(0)] = regs.pr_eax;
|
||
*(int *)®isters[REGISTER_BYTE(5)] = regs.pr_ebx;
|
||
*(int *)®isters[REGISTER_BYTE(2)] = regs.pr_ecx;
|
||
*(int *)®isters[REGISTER_BYTE(1)] = regs.pr_edx;
|
||
*(int *)®isters[REGISTER_BYTE(6)] = regs.pr_esi;
|
||
*(int *)®isters[REGISTER_BYTE(7)] = regs.pr_edi;
|
||
*(int *)®isters[REGISTER_BYTE(15)] = regs.pr_ebp;
|
||
*(int *)®isters[REGISTER_BYTE(14)] = regs.pr_esp;
|
||
*(int *)®isters[REGISTER_BYTE(16)] = regs.pr_eip;
|
||
*(int *)®isters[REGISTER_BYTE(17)] = regs.pr_flags;
|
||
for (i = 0; i < FPA_NREGS; i++) {
|
||
*(int *)®isters[REGISTER_BYTE(FP1_REGNUM+i)] = regs.pr_fpa.fpa_regs[i];
|
||
}
|
||
bcopy(regs.pr_fpu.fpu_stack[0], ®isters[REGISTER_BYTE(3)], 10);
|
||
bcopy(regs.pr_fpu.fpu_stack[1], ®isters[REGISTER_BYTE(4)], 10);
|
||
bcopy(regs.pr_fpu.fpu_stack[2], ®isters[REGISTER_BYTE(8)], 10);
|
||
bcopy(regs.pr_fpu.fpu_stack[3], ®isters[REGISTER_BYTE(9)], 10);
|
||
bcopy(regs.pr_fpu.fpu_stack[4], ®isters[REGISTER_BYTE(10)], 10);
|
||
bcopy(regs.pr_fpu.fpu_stack[5], ®isters[REGISTER_BYTE(11)], 10);
|
||
bcopy(regs.pr_fpu.fpu_stack[6], ®isters[REGISTER_BYTE(12)], 10);
|
||
bcopy(regs.pr_fpu.fpu_stack[7], ®isters[REGISTER_BYTE(13)], 10);
|
||
}
|
||
|
||
|
||
/* Work with core dump and executable files, for GDB.
|
||
This code would be in core.c if it weren't machine-dependent. */
|
||
|
||
void
|
||
core_file_command (filename, from_tty)
|
||
char *filename;
|
||
int from_tty;
|
||
{
|
||
int val;
|
||
extern char registers[];
|
||
|
||
/* Discard all vestiges of any previous core file
|
||
and mark data and stack spaces as empty. */
|
||
|
||
if (corefile)
|
||
free (corefile);
|
||
corefile = 0;
|
||
|
||
if (corechan >= 0)
|
||
close (corechan);
|
||
corechan = -1;
|
||
|
||
data_start = 0;
|
||
data_end = 0;
|
||
stack_start = STACK_END_ADDR;
|
||
stack_end = STACK_END_ADDR;
|
||
|
||
/* Now, if a new core file was specified, open it and digest it. */
|
||
|
||
if (filename)
|
||
{
|
||
filename = tilde_expand (filename);
|
||
make_cleanup (free, filename);
|
||
|
||
if (have_inferior_p ())
|
||
error ("To look at a core file, you must kill the inferior with \"kill\".");
|
||
corechan = open (filename, O_RDONLY, 0);
|
||
if (corechan < 0)
|
||
perror_with_name (filename);
|
||
/* 4.2-style (and perhaps also sysV-style) core dump file. */
|
||
{
|
||
struct user u;
|
||
int reg_offset;
|
||
|
||
val = myread (corechan, &u, sizeof u);
|
||
if (val < 0)
|
||
perror_with_name (filename);
|
||
data_start = exec_data_start;
|
||
|
||
data_end = data_start + NBPG * (u.u_dsize - u.u_tsize);
|
||
stack_start = stack_end - NBPG * u.u_ssize;
|
||
data_offset = NBPG * UPAGES;
|
||
stack_offset = ctob(UPAGES + u.u_dsize - u.u_tsize);
|
||
reg_offset = (int) u.u_ar0 - KERNEL_U_ADDR;
|
||
printf("u.u_tsize= %#x, u.u_dsize= %#x, u.u_ssize= %#x, stack_off= %#x\n",
|
||
u.u_tsize, u.u_dsize, u.u_ssize, stack_offset);
|
||
|
||
core_aouthdr.a_magic = 0;
|
||
|
||
/* Read the register values out of the core file and store
|
||
them where `read_register' will find them. */
|
||
|
||
{
|
||
register int regno;
|
||
|
||
for (regno = 0; regno < NUM_REGS; regno++)
|
||
{
|
||
char buf[MAX_REGISTER_RAW_SIZE];
|
||
|
||
val = lseek (corechan, register_addr (regno, reg_offset), 0);
|
||
if (val < 0)
|
||
perror_with_name (filename);
|
||
|
||
val = myread (corechan, buf, sizeof buf);
|
||
if (val < 0)
|
||
perror_with_name (filename);
|
||
supply_register (regno, buf);
|
||
}
|
||
}
|
||
}
|
||
if (filename[0] == '/')
|
||
corefile = savestring (filename, strlen (filename));
|
||
else
|
||
{
|
||
corefile = concat (current_directory, "/", filename, NULL);
|
||
}
|
||
|
||
set_current_frame(create_new_frame(read_register(FP_REGNUM),
|
||
read_pc()));
|
||
/* set_current_frame (read_register (FP_REGNUM));*/
|
||
select_frame (get_current_frame (), 0);
|
||
validate_files ();
|
||
}
|
||
else if (from_tty)
|
||
printf ("No core file now.\n");
|
||
}
|
||
|
||
/* FIXME: This should be merged with i387-tdep.c as well. */
|
||
static
|
||
print_fpu_status(ep)
|
||
struct pt_regset ep;
|
||
{
|
||
int i;
|
||
int bothstatus;
|
||
int top;
|
||
int fpreg;
|
||
unsigned char *p;
|
||
|
||
printf("80387:");
|
||
if (ep.pr_fpu.fpu_ip == 0) {
|
||
printf(" not in use.\n");
|
||
return;
|
||
} else {
|
||
printf("\n");
|
||
}
|
||
if (ep.pr_fpu.fpu_status != 0) {
|
||
print_387_status_word (ep.pr_fpu.fpu_status);
|
||
}
|
||
print_387_control_word (ep.pr_fpu.fpu_control);
|
||
printf ("last exception: ");
|
||
printf ("opcode 0x%x; ", ep.pr_fpu.fpu_rsvd4);
|
||
printf ("pc 0x%x:0x%x; ", ep.pr_fpu.fpu_cs, ep.pr_fpu.fpu_ip);
|
||
printf ("operand 0x%x:0x%x\n", ep.pr_fpu.fpu_data_offset, ep.pr_fpu.fpu_op_sel);
|
||
|
||
top = (ep.pr_fpu.fpu_status >> 11) & 7;
|
||
|
||
printf ("regno tag msb lsb value\n");
|
||
for (fpreg = 7; fpreg >= 0; fpreg--)
|
||
{
|
||
double val;
|
||
|
||
printf ("%s %d: ", fpreg == top ? "=>" : " ", fpreg);
|
||
|
||
switch ((ep.pr_fpu.fpu_tag >> (fpreg * 2)) & 3)
|
||
{
|
||
case 0: printf ("valid "); break;
|
||
case 1: printf ("zero "); break;
|
||
case 2: printf ("trap "); break;
|
||
case 3: printf ("empty "); break;
|
||
}
|
||
for (i = 9; i >= 0; i--)
|
||
printf ("%02x", ep.pr_fpu.fpu_stack[fpreg][i]);
|
||
|
||
i387_to_double (ep.pr_fpu.fpu_stack[fpreg], (char *)&val);
|
||
printf (" %g\n", val);
|
||
}
|
||
if (ep.pr_fpu.fpu_rsvd1)
|
||
warning ("rsvd1 is 0x%x\n", ep.pr_fpu.fpu_rsvd1);
|
||
if (ep.pr_fpu.fpu_rsvd2)
|
||
warning ("rsvd2 is 0x%x\n", ep.pr_fpu.fpu_rsvd2);
|
||
if (ep.pr_fpu.fpu_rsvd3)
|
||
warning ("rsvd3 is 0x%x\n", ep.pr_fpu.fpu_rsvd3);
|
||
if (ep.pr_fpu.fpu_rsvd5)
|
||
warning ("rsvd5 is 0x%x\n", ep.pr_fpu.fpu_rsvd5);
|
||
}
|
||
|
||
|
||
print_1167_control_word(pcr)
|
||
unsigned int pcr;
|
||
|
||
{
|
||
int pcr_tmp;
|
||
|
||
pcr_tmp = pcr & FPA_PCR_MODE;
|
||
printf("\tMODE= %#x; RND= %#x ", pcr_tmp, pcr_tmp & 12);
|
||
switch (pcr_tmp & 12) {
|
||
case 0:
|
||
printf("RN (Nearest Value)");
|
||
break;
|
||
case 1:
|
||
printf("RZ (Zero)");
|
||
break;
|
||
case 2:
|
||
printf("RP (Positive Infinity)");
|
||
break;
|
||
case 3:
|
||
printf("RM (Negative Infinity)");
|
||
break;
|
||
}
|
||
printf("; IRND= %d ", pcr_tmp & 2);
|
||
if (0 == pcr_tmp & 2) {
|
||
printf("(same as RND)\n");
|
||
} else {
|
||
printf("(toward zero)\n");
|
||
}
|
||
pcr_tmp = pcr & FPA_PCR_EM;
|
||
printf("\tEM= %#x", pcr_tmp);
|
||
if (pcr_tmp & FPA_PCR_EM_DM) printf(" DM");
|
||
if (pcr_tmp & FPA_PCR_EM_UOM) printf(" UOM");
|
||
if (pcr_tmp & FPA_PCR_EM_PM) printf(" PM");
|
||
if (pcr_tmp & FPA_PCR_EM_UM) printf(" UM");
|
||
if (pcr_tmp & FPA_PCR_EM_OM) printf(" OM");
|
||
if (pcr_tmp & FPA_PCR_EM_ZM) printf(" ZM");
|
||
if (pcr_tmp & FPA_PCR_EM_IM) printf(" IM");
|
||
printf("\n");
|
||
pcr_tmp = FPA_PCR_CC;
|
||
printf("\tCC= %#x", pcr_tmp);
|
||
if (pcr_tmp & FPA_PCR_20MHZ) printf(" 20MHZ");
|
||
if (pcr_tmp & FPA_PCR_CC_Z) printf(" Z");
|
||
if (pcr_tmp & FPA_PCR_CC_C2) printf(" C2");
|
||
if (pcr_tmp & FPA_PCR_CC_C1) printf(" C1");
|
||
switch (pcr_tmp) {
|
||
case FPA_PCR_CC_Z:
|
||
printf(" (Equal)");
|
||
break;
|
||
case FPA_PCR_CC_C1:
|
||
printf(" (Less than)");
|
||
break;
|
||
case 0:
|
||
printf(" (Greater than)");
|
||
break;
|
||
case FPA_PCR_CC_Z | FPA_PCR_CC_C1 | FPA_PCR_CC_C2:
|
||
printf(" (Unordered)");
|
||
break;
|
||
default:
|
||
printf(" (Undefined)");
|
||
break;
|
||
}
|
||
printf("\n");
|
||
pcr_tmp = pcr & FPA_PCR_AE;
|
||
printf("\tAE= %#x", pcr_tmp);
|
||
if (pcr_tmp & FPA_PCR_AE_DE) printf(" DE");
|
||
if (pcr_tmp & FPA_PCR_AE_UOE) printf(" UOE");
|
||
if (pcr_tmp & FPA_PCR_AE_PE) printf(" PE");
|
||
if (pcr_tmp & FPA_PCR_AE_UE) printf(" UE");
|
||
if (pcr_tmp & FPA_PCR_AE_OE) printf(" OE");
|
||
if (pcr_tmp & FPA_PCR_AE_ZE) printf(" ZE");
|
||
if (pcr_tmp & FPA_PCR_AE_EE) printf(" EE");
|
||
if (pcr_tmp & FPA_PCR_AE_IE) printf(" IE");
|
||
printf("\n");
|
||
}
|
||
|
||
print_1167_regs(regs)
|
||
long regs[FPA_NREGS];
|
||
|
||
{
|
||
int i;
|
||
|
||
union {
|
||
double d;
|
||
long l[2];
|
||
} xd;
|
||
union {
|
||
float f;
|
||
long l;
|
||
} xf;
|
||
|
||
|
||
for (i = 0; i < FPA_NREGS; i++) {
|
||
xf.l = regs[i];
|
||
printf("%%fp%d: raw= %#x, single= %f", i+1, regs[i], xf.f);
|
||
if (!(i & 1)) {
|
||
printf("\n");
|
||
} else {
|
||
xd.l[1] = regs[i];
|
||
xd.l[0] = regs[i+1];
|
||
printf(", double= %f\n", xd.d);
|
||
}
|
||
}
|
||
}
|
||
|
||
print_fpa_status(ep)
|
||
struct pt_regset ep;
|
||
|
||
{
|
||
|
||
printf("WTL 1167:");
|
||
if (ep.pr_fpa.fpa_pcr !=0) {
|
||
printf("\n");
|
||
print_1167_control_word(ep.pr_fpa.fpa_pcr);
|
||
print_1167_regs(ep.pr_fpa.fpa_regs);
|
||
} else {
|
||
printf(" not in use.\n");
|
||
}
|
||
}
|
||
|
||
i386_float_info ()
|
||
{
|
||
char ubuf[UPAGES*NBPG];
|
||
struct pt_regset regset;
|
||
extern int corechan;
|
||
|
||
if (have_inferior_p()) {
|
||
call_ptrace(XPT_RREGS, inferior_pid, (PTRACE_ARG3_TYPE) ®set, 0);
|
||
} else {
|
||
if (lseek (corechan, 0, 0) < 0) {
|
||
perror ("seek on core file");
|
||
}
|
||
if (myread (corechan, ubuf, UPAGES*NBPG) < 0) {
|
||
perror ("read on core file");
|
||
}
|
||
/* only interested in the floating point registers */
|
||
regset.pr_fpu = ((struct user *) ubuf)->u_fpusave;
|
||
regset.pr_fpa = ((struct user *) ubuf)->u_fpasave;
|
||
}
|
||
print_fpu_status(regset);
|
||
print_fpa_status(regset);
|
||
}
|