2000-02-13 02:06:58 +01:00
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/* Low level interface to ptrace, for the remote server for GDB.
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Copyright (C) 1986, 1987, 1993, 2000 Free Software Foundation, Inc.
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This file is part of GDB.
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This program 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 2 of the License, or
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(at your option) any later version.
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This program 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 this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include <sys/types.h>
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#include <sys/wait.h>
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#include "frame.h"
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#include "inferior.h"
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#include <stdio.h>
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#include <errno.h>
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/***************Begin MY defs*********************/
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static char my_registers[REGISTER_BYTES];
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char *registers = my_registers;
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/***************End MY defs*********************/
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#include <sys/ptrace.h>
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#include <machine/reg.h>
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* gdbserver/low-hppabsd.c (buf2, environ, quit, quit_flag):
Removed unused variables and declarations.
* gdbserver/low-linux.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-nbsd.c (buf2, environ, quit, quit_flag):
Likewise.
* gdbserver/low-sparc.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-sun.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-hppabsd.c, gdbserver/low-linux.c,
gdbserver/low-nbsd.c, gdbserver/low-sparc.c, gdbserver/low-sun3.c
(create_inferior): Update comment.
* gdbserver/low-nbsd.c (initialize_arch, fetch_inferior_registers,
store_inferior_registers): Provide implementations for the m68k
and ns32k.
* config/m68k/nbsd.mt (GDBSERVER_DEPFILES): Add low-nbsd.o
* config/ns32k/nbsd.mt (GDBSERVER_DEPFILES): Likewise.
* configure.tgt (m68*-*-netbsd*, ns32k-*-netbsd*): Add gdbserver
to configdirs.
-------------------------------------------------------------------
2000-12-08 20:46:08 +01:00
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// extern int sys_nerr;
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2000-02-13 02:06:58 +01:00
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// extern char **sys_errlist;
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extern int inferior_pid;
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* gdbserver/low-hppabsd.c (buf2, environ, quit, quit_flag):
Removed unused variables and declarations.
* gdbserver/low-linux.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-nbsd.c (buf2, environ, quit, quit_flag):
Likewise.
* gdbserver/low-sparc.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-sun.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-hppabsd.c, gdbserver/low-linux.c,
gdbserver/low-nbsd.c, gdbserver/low-sparc.c, gdbserver/low-sun3.c
(create_inferior): Update comment.
* gdbserver/low-nbsd.c (initialize_arch, fetch_inferior_registers,
store_inferior_registers): Provide implementations for the m68k
and ns32k.
* config/m68k/nbsd.mt (GDBSERVER_DEPFILES): Add low-nbsd.o
* config/ns32k/nbsd.mt (GDBSERVER_DEPFILES): Likewise.
* configure.tgt (m68*-*-netbsd*, ns32k-*-netbsd*): Add gdbserver
to configdirs.
-------------------------------------------------------------------
2000-12-08 20:46:08 +01:00
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void perror_with_name ();
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2000-02-13 02:06:58 +01:00
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2000-05-24 06:16:28 +02:00
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#define RF(dst, src) \
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memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src))
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#define RS(src, dst) \
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memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst))
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#ifdef __i386__
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struct env387
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{
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unsigned short control;
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unsigned short r0;
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unsigned short status;
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unsigned short r1;
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unsigned short tag;
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unsigned short r2;
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unsigned long eip;
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unsigned short code_seg;
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unsigned short opcode;
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unsigned long operand;
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unsigned short operand_seg;
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unsigned short r3;
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unsigned char regs[8][10];
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};
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2000-02-13 02:06:58 +01:00
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/* i386_register_raw_size[i] is the number of bytes of storage in the
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actual machine representation for register i. */
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int i386_register_raw_size[MAX_NUM_REGS] = {
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4, 4, 4, 4,
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4, 4, 4, 4,
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4, 4, 4, 4,
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4, 4, 4, 4,
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10, 10, 10, 10,
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10, 10, 10, 10,
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4, 4, 4, 4,
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4, 4, 4, 4,
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16, 16, 16, 16,
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16, 16, 16, 16,
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4
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};
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int i386_register_byte[MAX_NUM_REGS];
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static void
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2000-07-30 03:48:28 +02:00
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initialize_arch (void)
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2000-02-13 02:06:58 +01:00
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{
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/* Initialize the table saying where each register starts in the
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register file. */
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{
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int i, offset;
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offset = 0;
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for (i = 0; i < MAX_NUM_REGS; i++)
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{
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i386_register_byte[i] = offset;
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offset += i386_register_raw_size[i];
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}
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}
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}
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2000-05-24 06:16:28 +02:00
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#endif /* !__i386__ */
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2000-02-13 02:06:58 +01:00
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* gdbserver/low-hppabsd.c (buf2, environ, quit, quit_flag):
Removed unused variables and declarations.
* gdbserver/low-linux.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-nbsd.c (buf2, environ, quit, quit_flag):
Likewise.
* gdbserver/low-sparc.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-sun.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-hppabsd.c, gdbserver/low-linux.c,
gdbserver/low-nbsd.c, gdbserver/low-sparc.c, gdbserver/low-sun3.c
(create_inferior): Update comment.
* gdbserver/low-nbsd.c (initialize_arch, fetch_inferior_registers,
store_inferior_registers): Provide implementations for the m68k
and ns32k.
* config/m68k/nbsd.mt (GDBSERVER_DEPFILES): Add low-nbsd.o
* config/ns32k/nbsd.mt (GDBSERVER_DEPFILES): Likewise.
* configure.tgt (m68*-*-netbsd*, ns32k-*-netbsd*): Add gdbserver
to configdirs.
-------------------------------------------------------------------
2000-12-08 20:46:08 +01:00
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#ifdef __m68k__
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static void
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initialize_arch (void)
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{
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}
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#endif /* !__m68k__ */
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#ifdef __ns32k__
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static void
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initialize_arch (void)
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{
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}
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#endif /* !__ns32k__ */
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2000-05-24 06:16:28 +02:00
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#ifdef __powerpc__
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2000-11-21 01:25:58 +01:00
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#include "ppc-tdep.h"
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2000-05-24 06:16:28 +02:00
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static void
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2000-07-30 03:48:28 +02:00
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initialize_arch (void)
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2000-05-24 06:16:28 +02:00
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{
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}
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#endif /* !__powerpc__ */
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2000-02-13 02:06:58 +01:00
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/* Start an inferior process and returns its pid.
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* gdbserver/low-hppabsd.c (buf2, environ, quit, quit_flag):
Removed unused variables and declarations.
* gdbserver/low-linux.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-nbsd.c (buf2, environ, quit, quit_flag):
Likewise.
* gdbserver/low-sparc.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-sun.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-hppabsd.c, gdbserver/low-linux.c,
gdbserver/low-nbsd.c, gdbserver/low-sparc.c, gdbserver/low-sun3.c
(create_inferior): Update comment.
* gdbserver/low-nbsd.c (initialize_arch, fetch_inferior_registers,
store_inferior_registers): Provide implementations for the m68k
and ns32k.
* config/m68k/nbsd.mt (GDBSERVER_DEPFILES): Add low-nbsd.o
* config/ns32k/nbsd.mt (GDBSERVER_DEPFILES): Likewise.
* configure.tgt (m68*-*-netbsd*, ns32k-*-netbsd*): Add gdbserver
to configdirs.
-------------------------------------------------------------------
2000-12-08 20:46:08 +01:00
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ALLARGS is a vector of program-name and args. */
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2000-02-13 02:06:58 +01:00
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int
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2000-07-30 03:48:28 +02:00
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create_inferior (char *program, char **allargs)
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2000-02-13 02:06:58 +01:00
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{
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int pid;
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pid = fork ();
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if (pid < 0)
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perror_with_name ("fork");
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if (pid == 0)
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{
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ptrace (PT_TRACE_ME, 0, 0, 0);
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execv (program, allargs);
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fprintf (stderr, "Cannot exec %s: %s.\n", program,
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errno < sys_nerr ? sys_errlist[errno] : "unknown error");
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fflush (stderr);
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_exit (0177);
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}
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return pid;
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}
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/* Kill the inferior process. Make us have no inferior. */
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void
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2000-07-30 03:48:28 +02:00
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kill_inferior (void)
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2000-02-13 02:06:58 +01:00
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{
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if (inferior_pid == 0)
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return;
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ptrace (PT_KILL, inferior_pid, 0, 0);
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wait (0);
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/*************inferior_died ();****VK**************/
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}
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/* Return nonzero if the given thread is still alive. */
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int
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2000-07-30 03:48:28 +02:00
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mythread_alive (int pid)
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2000-02-13 02:06:58 +01:00
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{
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return 1;
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}
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/* Wait for process, returns status */
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unsigned char
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2000-07-30 03:48:28 +02:00
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mywait (char *status)
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2000-02-13 02:06:58 +01:00
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{
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int pid;
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int w;
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pid = wait (&w);
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if (pid != inferior_pid)
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perror_with_name ("wait");
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if (WIFEXITED (w))
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{
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fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
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*status = 'W';
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return ((unsigned char) WEXITSTATUS (w));
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}
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else if (!WIFSTOPPED (w))
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{
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fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
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*status = 'X';
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return ((unsigned char) WTERMSIG (w));
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}
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fetch_inferior_registers (0);
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*status = 'T';
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return ((unsigned char) WSTOPSIG (w));
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}
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/* Resume execution of the inferior process.
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If STEP is nonzero, single-step it.
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If SIGNAL is nonzero, give it that signal. */
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void
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2000-07-30 03:48:28 +02:00
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myresume (int step, int signal)
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2000-02-13 02:06:58 +01:00
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{
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errno = 0;
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ptrace (step ? PT_STEP : PT_CONTINUE, inferior_pid,
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(PTRACE_ARG3_TYPE) 1, signal);
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if (errno)
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perror_with_name ("ptrace");
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}
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2000-05-24 06:16:28 +02:00
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#ifdef __i386__
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2000-02-13 02:06:58 +01:00
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/* Fetch one or more registers from the inferior. REGNO == -1 to get
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them all. We actually fetch more than requested, when convenient,
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marking them as valid so we won't fetch them again. */
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void
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2000-07-30 03:48:28 +02:00
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fetch_inferior_registers (int ignored)
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2000-02-13 02:06:58 +01:00
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{
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struct reg inferior_registers;
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2000-05-24 06:16:28 +02:00
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struct env387 inferior_fp_registers;
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2000-02-13 02:06:58 +01:00
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ptrace (PT_GETREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &inferior_registers, 0);
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ptrace (PT_GETFPREGS, inferior_pid,
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(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
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2000-05-24 06:16:28 +02:00
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RF ( 0, inferior_registers.r_eax);
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RF ( 1, inferior_registers.r_ecx);
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RF ( 2, inferior_registers.r_edx);
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RF ( 3, inferior_registers.r_ebx);
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RF ( 4, inferior_registers.r_esp);
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RF ( 5, inferior_registers.r_ebp);
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RF ( 6, inferior_registers.r_esi);
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RF ( 7, inferior_registers.r_edi);
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RF ( 8, inferior_registers.r_eip);
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RF ( 9, inferior_registers.r_eflags);
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RF (10, inferior_registers.r_cs);
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RF (11, inferior_registers.r_ss);
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RF (12, inferior_registers.r_ds);
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RF (13, inferior_registers.r_es);
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RF (14, inferior_registers.r_fs);
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RF (15, inferior_registers.r_gs);
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2000-11-20 20:30:29 +01:00
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RF (FP0_REGNUM, inferior_fp_registers.regs[0]);
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RF (FP0_REGNUM + 1, inferior_fp_registers.regs[1]);
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RF (FP0_REGNUM + 2, inferior_fp_registers.regs[2]);
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RF (FP0_REGNUM + 3, inferior_fp_registers.regs[3]);
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RF (FP0_REGNUM + 4, inferior_fp_registers.regs[4]);
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RF (FP0_REGNUM + 5, inferior_fp_registers.regs[5]);
|
|
|
|
|
RF (FP0_REGNUM + 6, inferior_fp_registers.regs[6]);
|
|
|
|
|
RF (FP0_REGNUM + 7, inferior_fp_registers.regs[7]);
|
2000-05-24 06:16:28 +02:00
|
|
|
|
|
2000-11-20 20:30:29 +01:00
|
|
|
|
RF (FCTRL_REGNUM, inferior_fp_registers.control);
|
|
|
|
|
RF (FSTAT_REGNUM, inferior_fp_registers.status);
|
|
|
|
|
RF (FTAG_REGNUM, inferior_fp_registers.tag);
|
|
|
|
|
RF (FCS_REGNUM, inferior_fp_registers.code_seg);
|
|
|
|
|
RF (FCOFF_REGNUM, inferior_fp_registers.eip);
|
|
|
|
|
RF (FDS_REGNUM, inferior_fp_registers.operand_seg);
|
|
|
|
|
RF (FDOFF_REGNUM, inferior_fp_registers.operand);
|
|
|
|
|
RF (FOP_REGNUM, inferior_fp_registers.opcode);
|
2000-02-13 02:06:58 +01:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Store our register values back into the inferior.
|
|
|
|
|
If REGNO is -1, do this for all registers.
|
|
|
|
|
Otherwise, REGNO specifies which register (so we can save time). */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
store_inferior_registers (int ignored)
|
2000-02-13 02:06:58 +01:00
|
|
|
|
{
|
|
|
|
|
struct reg inferior_registers;
|
2000-05-24 06:16:28 +02:00
|
|
|
|
struct env387 inferior_fp_registers;
|
|
|
|
|
|
|
|
|
|
RS ( 0, inferior_registers.r_eax);
|
|
|
|
|
RS ( 1, inferior_registers.r_ecx);
|
|
|
|
|
RS ( 2, inferior_registers.r_edx);
|
|
|
|
|
RS ( 3, inferior_registers.r_ebx);
|
|
|
|
|
RS ( 4, inferior_registers.r_esp);
|
|
|
|
|
RS ( 5, inferior_registers.r_ebp);
|
|
|
|
|
RS ( 6, inferior_registers.r_esi);
|
|
|
|
|
RS ( 7, inferior_registers.r_edi);
|
|
|
|
|
RS ( 8, inferior_registers.r_eip);
|
|
|
|
|
RS ( 9, inferior_registers.r_eflags);
|
|
|
|
|
RS (10, inferior_registers.r_cs);
|
|
|
|
|
RS (11, inferior_registers.r_ss);
|
|
|
|
|
RS (12, inferior_registers.r_ds);
|
|
|
|
|
RS (13, inferior_registers.r_es);
|
|
|
|
|
RS (14, inferior_registers.r_fs);
|
|
|
|
|
RS (15, inferior_registers.r_gs);
|
|
|
|
|
|
2000-11-20 20:30:29 +01:00
|
|
|
|
RS (FP0_REGNUM, inferior_fp_registers.regs[0]);
|
|
|
|
|
RS (FP0_REGNUM + 1, inferior_fp_registers.regs[1]);
|
|
|
|
|
RS (FP0_REGNUM + 2, inferior_fp_registers.regs[2]);
|
|
|
|
|
RS (FP0_REGNUM + 3, inferior_fp_registers.regs[3]);
|
|
|
|
|
RS (FP0_REGNUM + 4, inferior_fp_registers.regs[4]);
|
|
|
|
|
RS (FP0_REGNUM + 5, inferior_fp_registers.regs[5]);
|
|
|
|
|
RS (FP0_REGNUM + 6, inferior_fp_registers.regs[6]);
|
|
|
|
|
RS (FP0_REGNUM + 7, inferior_fp_registers.regs[7]);
|
2000-05-24 06:16:28 +02:00
|
|
|
|
|
2000-11-20 20:30:29 +01:00
|
|
|
|
RS (FCTRL_REGNUM, inferior_fp_registers.control);
|
|
|
|
|
RS (FSTAT_REGNUM, inferior_fp_registers.status);
|
|
|
|
|
RS (FTAG_REGNUM, inferior_fp_registers.tag);
|
|
|
|
|
RS (FCS_REGNUM, inferior_fp_registers.code_seg);
|
|
|
|
|
RS (FCOFF_REGNUM, inferior_fp_registers.eip);
|
|
|
|
|
RS (FDS_REGNUM, inferior_fp_registers.operand_seg);
|
|
|
|
|
RS (FDOFF_REGNUM, inferior_fp_registers.operand);
|
|
|
|
|
RS (FOP_REGNUM, inferior_fp_registers.opcode);
|
2000-02-13 02:06:58 +01:00
|
|
|
|
|
|
|
|
|
ptrace (PT_SETREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) &inferior_registers, 0);
|
|
|
|
|
ptrace (PT_SETFPREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
|
|
|
|
|
}
|
2000-05-24 06:16:28 +02:00
|
|
|
|
#endif /* !__i386__ */
|
|
|
|
|
|
* gdbserver/low-hppabsd.c (buf2, environ, quit, quit_flag):
Removed unused variables and declarations.
* gdbserver/low-linux.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-nbsd.c (buf2, environ, quit, quit_flag):
Likewise.
* gdbserver/low-sparc.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-sun.c (buf2, environ, query, quit, quit_flag):
Likewise.
* gdbserver/low-hppabsd.c, gdbserver/low-linux.c,
gdbserver/low-nbsd.c, gdbserver/low-sparc.c, gdbserver/low-sun3.c
(create_inferior): Update comment.
* gdbserver/low-nbsd.c (initialize_arch, fetch_inferior_registers,
store_inferior_registers): Provide implementations for the m68k
and ns32k.
* config/m68k/nbsd.mt (GDBSERVER_DEPFILES): Add low-nbsd.o
* config/ns32k/nbsd.mt (GDBSERVER_DEPFILES): Likewise.
* configure.tgt (m68*-*-netbsd*, ns32k-*-netbsd*): Add gdbserver
to configdirs.
-------------------------------------------------------------------
2000-12-08 20:46:08 +01:00
|
|
|
|
#ifdef __m68k__
|
|
|
|
|
/* Fetch one or more registers from the inferior. REGNO == -1 to get
|
|
|
|
|
them all. We actually fetch more than requested, when convenient,
|
|
|
|
|
marking them as valid so we won't fetch them again. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
fetch_inferior_registers (int regno)
|
|
|
|
|
{
|
|
|
|
|
struct reg inferior_registers;
|
|
|
|
|
struct fpreg inferior_fp_registers;
|
|
|
|
|
|
|
|
|
|
ptrace (PT_GETREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
|
|
|
|
|
memcpy (®isters[REGISTER_BYTE (0)], &inferior_registers,
|
|
|
|
|
sizeof (inferior_registers));
|
|
|
|
|
|
|
|
|
|
ptrace (PT_GETFPREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
|
|
|
|
|
memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
|
|
|
|
|
sizeof (inferior_fp_registers));
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Store our register values back into the inferior.
|
|
|
|
|
If REGNO is -1, do this for all registers.
|
|
|
|
|
Otherwise, REGNO specifies which register (so we can save time). */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
store_inferior_registers (int regno)
|
|
|
|
|
{
|
|
|
|
|
struct reg inferior_registers;
|
|
|
|
|
struct fpreg inferior_fp_registers;
|
|
|
|
|
|
|
|
|
|
memcpy (&inferior_registers, ®isters[REGISTER_BYTE (0)],
|
|
|
|
|
sizeof (inferior_registers));
|
|
|
|
|
ptrace (PT_SETREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
|
|
|
|
|
|
|
|
|
|
memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
|
|
|
|
|
sizeof (inferior_fp_registers));
|
|
|
|
|
ptrace (PT_SETFPREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
|
|
|
|
|
}
|
|
|
|
|
#endif /* !__m68k__ */
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef __ns32k__
|
|
|
|
|
/* Fetch one or more registers from the inferior. REGNO == -1 to get
|
|
|
|
|
them all. We actually fetch more than requested, when convenient,
|
|
|
|
|
marking them as valid so we won't fetch them again. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
fetch_inferior_registers (int regno)
|
|
|
|
|
{
|
|
|
|
|
struct reg inferior_registers;
|
|
|
|
|
struct fpreg inferior_fpregisters;
|
|
|
|
|
|
|
|
|
|
ptrace (PT_GETREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
|
|
|
|
|
ptrace (PT_GETFPREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_fpregisters, 0);
|
|
|
|
|
|
|
|
|
|
RF (R0_REGNUM + 0, inferior_registers.r_r0);
|
|
|
|
|
RF (R0_REGNUM + 1, inferior_registers.r_r1);
|
|
|
|
|
RF (R0_REGNUM + 2, inferior_registers.r_r2);
|
|
|
|
|
RF (R0_REGNUM + 3, inferior_registers.r_r3);
|
|
|
|
|
RF (R0_REGNUM + 4, inferior_registers.r_r4);
|
|
|
|
|
RF (R0_REGNUM + 5, inferior_registers.r_r5);
|
|
|
|
|
RF (R0_REGNUM + 6, inferior_registers.r_r6);
|
|
|
|
|
RF (R0_REGNUM + 7, inferior_registers.r_r7);
|
|
|
|
|
|
|
|
|
|
RF (SP_REGNUM, inferior_registers.r_sp);
|
|
|
|
|
RF (FP_REGNUM, inferior_registers.r_fp);
|
|
|
|
|
RF (PC_REGNUM, inferior_registers.r_pc);
|
|
|
|
|
RF (PS_REGNUM, inferior_registers.r_psr);
|
|
|
|
|
|
|
|
|
|
RF (FPS_REGNUM, inferior_fpregisters.r_fsr);
|
|
|
|
|
RF (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]);
|
|
|
|
|
RF (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]);
|
|
|
|
|
RF (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]);
|
|
|
|
|
RF (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]);
|
|
|
|
|
RF (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]);
|
|
|
|
|
RF (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]);
|
|
|
|
|
RF (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]);
|
|
|
|
|
RF (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Store our register values back into the inferior.
|
|
|
|
|
If REGNO is -1, do this for all registers.
|
|
|
|
|
Otherwise, REGNO specifies which register (so we can save time). */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
store_inferior_registers (int regno)
|
|
|
|
|
{
|
|
|
|
|
struct reg inferior_registers;
|
|
|
|
|
struct fpreg inferior_fpregisters;
|
|
|
|
|
|
|
|
|
|
RS (R0_REGNUM + 0, inferior_registers.r_r0);
|
|
|
|
|
RS (R0_REGNUM + 1, inferior_registers.r_r1);
|
|
|
|
|
RS (R0_REGNUM + 2, inferior_registers.r_r2);
|
|
|
|
|
RS (R0_REGNUM + 3, inferior_registers.r_r3);
|
|
|
|
|
RS (R0_REGNUM + 4, inferior_registers.r_r4);
|
|
|
|
|
RS (R0_REGNUM + 5, inferior_registers.r_r5);
|
|
|
|
|
RS (R0_REGNUM + 6, inferior_registers.r_r6);
|
|
|
|
|
RS (R0_REGNUM + 7, inferior_registers.r_r7);
|
|
|
|
|
|
|
|
|
|
RS (SP_REGNUM, inferior_registers.r_sp);
|
|
|
|
|
RS (FP_REGNUM, inferior_registers.r_fp);
|
|
|
|
|
RS (PC_REGNUM, inferior_registers.r_pc);
|
|
|
|
|
RS (PS_REGNUM, inferior_registers.r_psr);
|
|
|
|
|
|
|
|
|
|
RS (FPS_REGNUM, inferior_fpregisters.r_fsr);
|
|
|
|
|
RS (FP0_REGNUM + 0, inferior_fpregisters.r_freg[0]);
|
|
|
|
|
RS (FP0_REGNUM + 2, inferior_fpregisters.r_freg[2]);
|
|
|
|
|
RS (FP0_REGNUM + 4, inferior_fpregisters.r_freg[4]);
|
|
|
|
|
RS (FP0_REGNUM + 6, inferior_fpregisters.r_freg[6]);
|
|
|
|
|
RS (LP0_REGNUM + 1, inferior_fpregisters.r_freg[1]);
|
|
|
|
|
RS (LP0_REGNUM + 3, inferior_fpregisters.r_freg[3]);
|
|
|
|
|
RS (LP0_REGNUM + 5, inferior_fpregisters.r_freg[5]);
|
|
|
|
|
RS (LP0_REGNUM + 7, inferior_fpregisters.r_freg[7]);
|
|
|
|
|
|
|
|
|
|
ptrace (PT_SETREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
|
|
|
|
|
ptrace (PT_SETFPREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_fpregisters, 0);
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
#endif /* !__ns32k__ */
|
|
|
|
|
|
2000-05-24 06:16:28 +02:00
|
|
|
|
#ifdef __powerpc__
|
|
|
|
|
/* Fetch one or more registers from the inferior. REGNO == -1 to get
|
|
|
|
|
them all. We actually fetch more than requested, when convenient,
|
|
|
|
|
marking them as valid so we won't fetch them again. */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
fetch_inferior_registers (int regno)
|
2000-05-24 06:16:28 +02:00
|
|
|
|
{
|
|
|
|
|
struct reg inferior_registers;
|
2000-11-21 01:25:58 +01:00
|
|
|
|
#ifdef PT_GETFPREGS
|
2000-05-24 06:16:28 +02:00
|
|
|
|
struct fpreg inferior_fp_registers;
|
2000-11-21 01:25:58 +01:00
|
|
|
|
#endif
|
2000-05-24 06:16:28 +02:00
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
ptrace (PT_GETREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
|
|
|
|
|
for (i = 0; i < 32; i++)
|
|
|
|
|
RF (i, inferior_registers.fixreg[i]);
|
2000-11-21 01:25:58 +01:00
|
|
|
|
RF (PPC_LR_REGNUM, inferior_registers.lr);
|
|
|
|
|
RF (PPC_CR_REGNUM, inferior_registers.cr);
|
|
|
|
|
RF (PPC_XER_REGNUM, inferior_registers.xer);
|
|
|
|
|
RF (PPC_CTR_REGNUM, inferior_registers.ctr);
|
2000-05-24 06:16:28 +02:00
|
|
|
|
RF (PC_REGNUM, inferior_registers.pc);
|
|
|
|
|
|
2000-11-21 01:25:58 +01:00
|
|
|
|
#ifdef PT_GETFPREGS
|
|
|
|
|
ptrace (PT_GETFPREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
|
2000-05-24 06:16:28 +02:00
|
|
|
|
for (i = 0; i < 32; i++)
|
|
|
|
|
RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
|
2000-11-21 01:25:58 +01:00
|
|
|
|
#endif
|
2000-05-24 06:16:28 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Store our register values back into the inferior.
|
|
|
|
|
If REGNO is -1, do this for all registers.
|
|
|
|
|
Otherwise, REGNO specifies which register (so we can save time). */
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
store_inferior_registers (int regno)
|
2000-05-24 06:16:28 +02:00
|
|
|
|
{
|
|
|
|
|
struct reg inferior_registers;
|
2000-11-21 01:25:58 +01:00
|
|
|
|
#ifdef PT_SETFPREGS
|
2000-05-24 06:16:28 +02:00
|
|
|
|
struct fpreg inferior_fp_registers;
|
2000-11-21 01:25:58 +01:00
|
|
|
|
#endif
|
2000-05-24 06:16:28 +02:00
|
|
|
|
int i;
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < 32; i++)
|
|
|
|
|
RS (i, inferior_registers.fixreg[i]);
|
2000-11-21 01:25:58 +01:00
|
|
|
|
RS (PPC_LR_REGNUM, inferior_registers.lr);
|
|
|
|
|
RS (PPC_CR_REGNUM, inferior_registers.cr);
|
|
|
|
|
RS (PPC_XER_REGNUM, inferior_registers.xer);
|
|
|
|
|
RS (PPC_CTR_REGNUM, inferior_registers.ctr);
|
2000-05-24 06:16:28 +02:00
|
|
|
|
RS (PC_REGNUM, inferior_registers.pc);
|
2000-11-21 01:25:58 +01:00
|
|
|
|
ptrace (PT_SETREGS, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) & inferior_registers, 0);
|
2000-05-24 06:16:28 +02:00
|
|
|
|
|
2000-11-21 01:25:58 +01:00
|
|
|
|
#ifdef PT_SETFPREGS
|
2000-05-24 06:16:28 +02:00
|
|
|
|
for (i = 0; i < 32; i++)
|
|
|
|
|
RS (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
|
|
|
|
|
ptrace (PT_SETFPREGS, inferior_pid,
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|
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|
(PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
|
2000-11-21 01:25:58 +01:00
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#endif
|
2000-05-24 06:16:28 +02:00
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|
}
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|
#endif /* !__powerpc__ */
|
2000-02-13 02:06:58 +01:00
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|
|
/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
|
|
|
|
|
in the NEW_SUN_PTRACE case.
|
|
|
|
|
It ought to be straightforward. But it appears that writing did
|
|
|
|
|
not write the data that I specified. I cannot understand where
|
|
|
|
|
it got the data that it actually did write. */
|
|
|
|
|
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|
|
|
|
/* Copy LEN bytes from inferior's memory starting at MEMADDR
|
|
|
|
|
to debugger memory starting at MYADDR. */
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|
|
|
|
|
2000-07-30 03:48:28 +02:00
|
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|
|
read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
|
2000-02-13 02:06:58 +01:00
|
|
|
|
{
|
|
|
|
|
register int i;
|
|
|
|
|
/* Round starting address down to longword boundary. */
|
|
|
|
|
register CORE_ADDR addr = memaddr & -sizeof (int);
|
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|
|
|
/* Round ending address up; get number of longwords that makes. */
|
|
|
|
|
register int count
|
|
|
|
|
= (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
|
|
|
|
|
/* Allocate buffer of that many longwords. */
|
|
|
|
|
register int *buffer = (int *) alloca (count * sizeof (int));
|
|
|
|
|
|
|
|
|
|
/* Read all the longwords */
|
|
|
|
|
for (i = 0; i < count; i++, addr += sizeof (int))
|
|
|
|
|
{
|
|
|
|
|
buffer[i] = ptrace (PT_READ_D, inferior_pid, (PTRACE_ARG3_TYPE) addr, 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Copy appropriate bytes out of the buffer. */
|
|
|
|
|
memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Copy LEN bytes of data from debugger memory at MYADDR
|
|
|
|
|
to inferior's memory at MEMADDR.
|
|
|
|
|
On failure (cannot write the inferior)
|
|
|
|
|
returns the value of errno. */
|
|
|
|
|
|
|
|
|
|
int
|
2000-07-30 03:48:28 +02:00
|
|
|
|
write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
|
2000-02-13 02:06:58 +01:00
|
|
|
|
{
|
|
|
|
|
register int i;
|
|
|
|
|
/* Round starting address down to longword boundary. */
|
|
|
|
|
register CORE_ADDR addr = memaddr & -sizeof (int);
|
|
|
|
|
/* Round ending address up; get number of longwords that makes. */
|
|
|
|
|
register int count
|
|
|
|
|
= (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
|
|
|
|
|
/* Allocate buffer of that many longwords. */
|
|
|
|
|
register int *buffer = (int *) alloca (count * sizeof (int));
|
|
|
|
|
extern int errno;
|
|
|
|
|
|
|
|
|
|
/* Fill start and end extra bytes of buffer with existing memory data. */
|
|
|
|
|
|
|
|
|
|
buffer[0] = ptrace (PT_READ_D, inferior_pid, (PTRACE_ARG3_TYPE) addr, 0);
|
|
|
|
|
|
|
|
|
|
if (count > 1)
|
|
|
|
|
{
|
|
|
|
|
buffer[count - 1]
|
|
|
|
|
= ptrace (PT_READ_D, inferior_pid,
|
|
|
|
|
(PTRACE_ARG3_TYPE) addr + (count - 1) * sizeof (int), 0);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Copy data to be written over corresponding part of buffer */
|
|
|
|
|
|
|
|
|
|
memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
|
|
|
|
|
|
|
|
|
|
/* Write the entire buffer. */
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < count; i++, addr += sizeof (int))
|
|
|
|
|
{
|
|
|
|
|
errno = 0;
|
|
|
|
|
ptrace (PT_WRITE_D, inferior_pid, (PTRACE_ARG3_TYPE) addr, buffer[i]);
|
|
|
|
|
if (errno)
|
|
|
|
|
return errno;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
initialize_low (void)
|
2000-02-13 02:06:58 +01:00
|
|
|
|
{
|
|
|
|
|
initialize_arch ();
|
|
|
|
|
}
|