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/* Low level interface to ptrace, for GDB when running under Unix.
Copyright (C) 1988, 1989 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. */
/*** Prettier register printing. ***/
/* Print registers in the same format as pyramid's dbx, adb, sdb. */
pyr_print_registers(reg_buf, regnum)
long *reg_buf[];
{
register int regno;
int usp, ksp;
struct user u;
for (regno = 0; regno < 16; regno++) {
printf/*_filtered*/ ("%6.6s: %8x %6.6s: %8x %6s: %8x %6s: %8x\n",
reg_names[regno], reg_buf[regno],
reg_names[regno+16], reg_buf[regno+16],
reg_names[regno+32], reg_buf[regno+32],
reg_names[regno+48], reg_buf[regno+48]);
}
usp = ptrace (3, inferior_pid,
((char *)&u.u_pcb.pcb_usp) -
((char *)&u), 0);
ksp = ptrace (3, inferior_pid,
((char *)&u.u_pcb.pcb_ksp) -
((char *)&u), 0);
printf/*_filtered*/ ("\n%6.6s: %8x %6.6s: %8x (%08x) %6.6s %8x\n",
reg_names[CSP_REGNUM],reg_buf[CSP_REGNUM],
reg_names[KSP_REGNUM], reg_buf[KSP_REGNUM], ksp,
"usp", usp);
}
/* Print the register regnum, or all registers if regnum is -1. */
pyr_do_registers_info (regnum)
int regnum;
{
/* On a pyr, we know a virtual register can always fit in an long.
Here (and elsewhere) we take advantage of that. Yuk. */
long raw_regs[MAX_REGISTER_RAW_SIZE*NUM_REGS];
register int i;
for (i = 0 ; i < 64 ; i++) {
read_relative_register_raw_bytes(i, raw_regs+i);
}
if (regnum == -1)
pyr_print_registers (raw_regs, regnum);
else
for (i = 0; i < NUM_REGS; i++)
if (i == regnum) {
long val = raw_regs[i];
fputs_filtered (reg_names[i], stdout);
printf_filtered(":");
print_spaces_filtered (6 - strlen (reg_names[i]), stdout);
if (val == 0)
printf_filtered ("0");
else
printf_filtered ("0x%08x %d", val, val);
printf_filtered("\n");
}
}
/*** Debugging editions of various macros from m-pyr.h ****/
CORE_ADDR frame_locals_address (frame)
FRAME frame;
{
register int addr = find_saved_register (frame,CFP_REGNUM);
register int result = read_memory_integer (addr, 4);
#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
fprintf (stderr,
"\t[[..frame_locals:%8x, %s= %x @%x fcfp= %x foo= %x\n\t gr13=%x pr13=%x tr13=%x @%x]]\n",
frame->frame,
reg_names[CFP_REGNUM],
result, addr,
frame->frame_cfp, (CFP_REGNUM),
read_register(13), read_register(29), read_register(61),
find_saved_register(frame, 61));
#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
/* FIXME: I thought read_register (CFP_REGNUM) should be the right answer;
or at least CFP_REGNUM relative to FRAME (ie, result).
There seems to be a bug in the way the innermost frame is set up. */
return ((frame->next) ? result: frame->frame_cfp);
}
CORE_ADDR frame_args_addr (frame)
FRAME frame;
{
register int addr = find_saved_register (frame,CFP_REGNUM);
register int result = read_memory_integer (addr, 4);
#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
fprintf (stderr,
"\t[[..frame_args:%8x, %s= %x @%x fcfp= %x r_r= %x\n\t gr13=%x pr13=%x tr13=%x @%x]]\n",
frame->frame,
reg_names[CFP_REGNUM],
result, addr,
frame->frame_cfp, read_register(CFP_REGNUM),
read_register(13), read_register(29), read_register(61),
find_saved_register(frame, 61));
#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
/* FIXME: I thought read_register (CFP_REGNUM) should be the right answer;
or at least CFP_REGNUM relative to FRAME (ie, result).
There seems to be a bug in the way the innermost frame is set up. */
return ((frame->next) ? result: frame->frame_cfp);
}
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