130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
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/* Low level interface to ptrace, for GDB when running under Unix.
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Copyright (C) 1988, 1989 Free Software Foundation, Inc.
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This file is part of GDB.
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GDB is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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GDB is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GDB; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*** Prettier register printing. ***/
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/* Print registers in the same format as pyramid's dbx, adb, sdb. */
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pyr_print_registers(reg_buf, regnum)
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long *reg_buf[];
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{
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register int regno;
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int usp, ksp;
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struct user u;
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for (regno = 0; regno < 16; regno++) {
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printf/*_filtered*/ ("%6.6s: %8x %6.6s: %8x %6s: %8x %6s: %8x\n",
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reg_names[regno], reg_buf[regno],
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reg_names[regno+16], reg_buf[regno+16],
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reg_names[regno+32], reg_buf[regno+32],
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reg_names[regno+48], reg_buf[regno+48]);
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}
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usp = ptrace (3, inferior_pid,
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((char *)&u.u_pcb.pcb_usp) -
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((char *)&u), 0);
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ksp = ptrace (3, inferior_pid,
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((char *)&u.u_pcb.pcb_ksp) -
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((char *)&u), 0);
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printf/*_filtered*/ ("\n%6.6s: %8x %6.6s: %8x (%08x) %6.6s %8x\n",
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reg_names[CSP_REGNUM],reg_buf[CSP_REGNUM],
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reg_names[KSP_REGNUM], reg_buf[KSP_REGNUM], ksp,
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"usp", usp);
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}
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/* Print the register regnum, or all registers if regnum is -1. */
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pyr_do_registers_info (regnum)
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int regnum;
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{
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/* On a pyr, we know a virtual register can always fit in an long.
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Here (and elsewhere) we take advantage of that. Yuk. */
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long raw_regs[MAX_REGISTER_RAW_SIZE*NUM_REGS];
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register int i;
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for (i = 0 ; i < 64 ; i++) {
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read_relative_register_raw_bytes(i, raw_regs+i);
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}
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if (regnum == -1)
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pyr_print_registers (raw_regs, regnum);
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else
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for (i = 0; i < NUM_REGS; i++)
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if (i == regnum) {
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long val = raw_regs[i];
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fputs_filtered (reg_names[i], stdout);
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printf_filtered(":");
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print_spaces_filtered (6 - strlen (reg_names[i]), stdout);
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if (val == 0)
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printf_filtered ("0");
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else
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printf_filtered ("0x%08x %d", val, val);
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printf_filtered("\n");
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}
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}
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/*** Debugging editions of various macros from m-pyr.h ****/
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CORE_ADDR frame_locals_address (frame)
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FRAME frame;
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{
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register int addr = find_saved_register (frame,CFP_REGNUM);
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register int result = read_memory_integer (addr, 4);
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#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
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fprintf (stderr,
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"\t[[..frame_locals:%8x, %s= %x @%x fcfp= %x foo= %x\n\t gr13=%x pr13=%x tr13=%x @%x]]\n",
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frame->frame,
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reg_names[CFP_REGNUM],
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result, addr,
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frame->frame_cfp, (CFP_REGNUM),
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read_register(13), read_register(29), read_register(61),
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find_saved_register(frame, 61));
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#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
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/* FIXME: I thought read_register (CFP_REGNUM) should be the right answer;
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or at least CFP_REGNUM relative to FRAME (ie, result).
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There seems to be a bug in the way the innermost frame is set up. */
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return ((frame->next) ? result: frame->frame_cfp);
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}
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CORE_ADDR frame_args_addr (frame)
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FRAME frame;
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{
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register int addr = find_saved_register (frame,CFP_REGNUM);
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register int result = read_memory_integer (addr, 4);
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#ifdef PYRAMID_CONTROL_FRAME_DEBUGGING
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fprintf (stderr,
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"\t[[..frame_args:%8x, %s= %x @%x fcfp= %x r_r= %x\n\t gr13=%x pr13=%x tr13=%x @%x]]\n",
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frame->frame,
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reg_names[CFP_REGNUM],
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result, addr,
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frame->frame_cfp, read_register(CFP_REGNUM),
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read_register(13), read_register(29), read_register(61),
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find_saved_register(frame, 61));
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#endif /* PYRAMID_CONTROL_FRAME_DEBUGGING */
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/* FIXME: I thought read_register (CFP_REGNUM) should be the right answer;
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or at least CFP_REGNUM relative to FRAME (ie, result).
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There seems to be a bug in the way the innermost frame is set up. */
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return ((frame->next) ? result: frame->frame_cfp);
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}
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