Work towards getting gdb working by Craig Ruff.
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phil
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@ -17,7 +17,7 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: ns32k-nat.c,v 1.1 1994/06/09 14:46:19 phil Exp $
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$Id: ns32k-nat.c,v 1.2 1995/07/28 08:00:17 phil Exp $
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*/
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#include <sys/types.h>
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@ -29,6 +29,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#include <sys/ptrace.h>
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#include "defs.h"
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#include "inferior.h"
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/* Incomplete -- PAN */
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@ -45,3 +46,190 @@ clear_regs()
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return;
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}
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#ifdef notdef
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struct reg {
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unsigned int r_r7;
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unsigned int r_r6;
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unsigned int r_r5;
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unsigned int r_r4;
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unsigned int r_r3;
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unsigned int r_r2;
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unsigned int r_r1;
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unsigned int r_r0;
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unsigned int r_sp;
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unsigned int r_sb;
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unsigned int r_fp;
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unsigned int r_pc;
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unsigned int r_psr;
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};
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#define REGISTER_NAMES {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
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"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \
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"sp", "fp", "pc", "ps", \
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"fsr", \
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"l0", "l1", "l2", "l3", "xx", \
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}
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struct gdb_regs {
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unsigned int r0;
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unsigned int r1;
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unsigned int r2;
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unsigned int r3;
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unsigned int r4;
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unsigned int r5;
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unsigned int r6;
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unsigned int r7;
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float f0;
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float f1;
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float f2;
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float f3;
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float f4;
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float f5;
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float f6;
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float f7;
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unsigned int sp;
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unsigned int fp;
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unsigned int pc;
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unsigned int ps;
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unsigned int fsr;
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double l0;
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double l1;
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double l2;
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double l3;
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double l4;
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double l5;
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double l6;
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double l7;
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};
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#endif
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int regMap[26] = {
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7, 6, 5, 4, 3, 2, 1, 0,
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-1, -1, -1, -1, -1, -1, -1, -1,
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8, 10, 11, 12,
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-1,
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-1, -1, -1, -1, -1
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};
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int inFetchReg = 0;
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void
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fetch_register(int regno)
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{
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union {
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struct reg regs;
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int r[13];
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} u;
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struct fpreg fp_regs;
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int *p;
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char mess[128];
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if (regMap[regno] == -1) {
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/* Supply zeroes */
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memset(mess, '\0', REGISTER_RAW_SIZE (regno));
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supply_register(regno, mess);
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return;
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}
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if (!inFetchReg) {
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inFetchReg = 1;
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if (ptrace(PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &u.regs,
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0) == -1) {
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sprintf(mess, "reading register %s (#%d)",
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reg_names[regno], regno);
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perror_with_name(mess);
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}
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if (ptrace(PT_GETFPREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &fp_regs, 0) == -1) {
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sprintf(mess, "reading fp regs");
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perror_with_name(mess);
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} else {
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fprintf(stderr, "FP Regs: fpsr %08x\n", fp_regs.r_fpsr);
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p = (int *) &fp_regs.r_f0;
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fprintf(stderr, " f0 %08x %08x\n", p[1], p[0]);
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p += 2;
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fprintf(stderr, " f1 %08x %08x\n", p[1], p[0]);
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p += 2;
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fprintf(stderr, " f2 %08x %08x\n", p[1], p[0]);
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p += 2;
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fprintf(stderr, " f3 %08x %08x\n", p[1], p[0]);
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p += 2;
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fprintf(stderr, " f4 %08x %08x\n", p[1], p[0]);
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p += 2;
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fprintf(stderr, " f5 %08x %08x\n", p[1], p[0]);
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p += 2;
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fprintf(stderr, " f6 %08x %08x\n", p[1], p[0]);
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p += 2;
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fprintf(stderr, " f7 %08x %08x\n", p[1], p[0]);
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p += 2;
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}
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}
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supply_register(regno, &u.r[regMap[regno]]);
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}
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/* Fetch all registers, or just one, from the child process. */
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void
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fetch_inferior_registers(int regno)
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{
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if (regno == -1)
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for (regno = 0; regno < NUM_REGS; regno++)
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fetch_register(regno);
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else
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fetch_register(regno);
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inFetchReg = 0;
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}
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#ifdef notdef
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void
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fetch_inferior_registers(regno)
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int regno;
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{
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struct reg inferior_registers;
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struct fpreg fp_regs;
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ptrace (PT_GETREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &inferior_registers, 0);
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memcpy (®isters[REGISTER_BYTE (0)], &inferior_registers,
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sizeof(unsigned int) * 14);
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#ifdef notdef
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ptrace (PT_GETFPREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &fp_regs, 0);
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fprintf(stderr, "FP Regs: fpsr %08x\n", fp_regs.r_fpsr);
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fprintf(stderr, " f0 %f\n", fp_regs.r_f0);
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fprintf(stderr, " f1 %f\n", fp_regs.r_f1);
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fprintf(stderr, " f2 %f\n", fp_regs.r_f2);
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fprintf(stderr, " f3 %f\n", fp_regs.r_f3);
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fprintf(stderr, " f4 %f\n", fp_regs.r_f4);
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fprintf(stderr, " f5 %f\n", fp_regs.r_f5);
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fprintf(stderr, " f6 %f\n", fp_regs.r_f6);
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fprintf(stderr, " f7 %f\n", fp_regs.r_f7);
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#endif
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registers_fetched ();
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}
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#endif
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void
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store_inferior_registers (regno)
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int regno;
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{
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struct reg inferior_registers;
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memcpy (&inferior_registers, ®isters[REGISTER_BYTE (0)],
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sizeof(unsigned int) * 14);
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ptrace (PT_SETREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &inferior_registers, 0);
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}
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@ -17,9 +17,10 @@ You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id: tm.h,v 1.1 1994/04/28 17:11:33 phil Exp $
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$Id: tm.h,v 1.2 1995/07/28 08:03:29 phil Exp $
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*/
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#define FETCH_INFERIOR_REGISTERS
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/* Override number of expected traps from sysv. */
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#define START_INFERIOR_TRAPS_EXPECTED 2
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@ -1,4 +1,4 @@
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/* $NetBSD: ptrace.h,v 1.5 1994/10/26 08:24:40 cgd Exp $ */
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/* $NetBSD: ptrace.h,v 1.6 1995/07/28 08:00:17 phil Exp $ */
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/*
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* Copyright (c) 1993 Christopher G. Demetriou
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@ -36,8 +36,5 @@
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#define PT_STEP (PT_FIRSTMACH + 0)
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#define PT_GETREGS (PT_FIRSTMACH + 1)
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#define PT_SETREGS (PT_FIRSTMACH + 2)
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#ifdef notyet
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#define PT_GETFPREGS (PT_FIRSTMACH + 3)
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#define PT_SETFPREGS (PT_FIRSTMACH + 4)
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#endif
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@ -1,4 +1,4 @@
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/* $NetBSD: reg.h,v 1.8 1994/10/26 08:24:41 cgd Exp $ */
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/* $NetBSD: reg.h,v 1.9 1995/07/28 08:03:29 phil Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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@ -88,6 +88,19 @@ struct reg {
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unsigned int r_psr;
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};
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struct fpreg {
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double r_f0;
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double r_f1;
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double r_f2;
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double r_f3;
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double r_f4;
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double r_f5;
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double r_f6;
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double r_f7;
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unsigned int r_fpsr;
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};
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/*
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* Registers accessible to ptrace(2) syscall for debugger
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