+2003-06-20 Daniel Jacobowitz <drow@mvista.com>
+
+ * Makefile.in (SFILES): Update.
+ * low-hppabsd.c, low-lynx.c, low-nbsd.c, low-sim.c, low-sparc.c,
+ low-sun3.c: Remove files.
+
2003-06-17 Daniel Jacobowitz <drow@mvista.com>
* linux-low.c: Move comment to linux_thread_alive where it belonged.
# All source files that go into linking GDB remote server.
-SFILES = $(srcdir)/low-hppabsd.c $(srcdir)/low-linux.c $(srcdir)/low-lynx.c \
- $(srcdir)/low-nbsd.c $(srcdir)/low-sim.c $(srcdir)/low-sparc.c \
- $(srcdir)/low-sun3.c $(srcdir)/utils.c $(srcdir)/server.c \
- $(srcdir)/remote-utils.c
+SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c \
+ $(srcdir)/mem-break.c $(srcdir)/proc-service.c $(srcdir)/regcache.c \
+ $(srcdir)/remote-utils.c $(srcdir)/server.c $(srcdir)/target.c \
+ $(srcdir)/thread-db.c $(srcdir)/utils.c \
+ $(srcdir)/linux-arm-low.c $(srcdir)/linux-i386-low.c \
+ $(srcdir)/i387-fp.c \
+ $(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \
+ $(srcdir)/linux-m68k-low.c $(srcdir)/linux-mips-low.c \
+ $(srcdir)/linux-ppc-low.c $(srcdir)/linux-s390-low.c \
+ $(srcdir)/linux-sh-low.c $(srcdir)/linux-x86-64-low.c
DEPFILES = @GDBSERVER_DEPFILES@
+++ /dev/null
-/* Low level interface to ptrace, for the remote server for GDB.
- Copyright 1995, 1996, 1999, 2000, 2001, 2002 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "server.h"
-#include <sys/wait.h>
-#include "frame.h"
-#include "inferior.h"
-
-#include <stdio.h>
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <sys/user.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sgtty.h>
-#include <fcntl.h>
-
-/***************Begin MY defs*********************/
-static char my_registers[REGISTER_BYTES];
-char *registers = my_registers;
-/***************End MY defs*********************/
-
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-
-extern int errno;
-
-/* Start an inferior process and returns its pid.
- ALLARGS is a vector of program-name and args. */
-
-int
-create_inferior (char *program, char **allargs)
-{
- int pid;
-
- pid = fork ();
- if (pid < 0)
- perror_with_name ("fork");
-
- if (pid == 0)
- {
- ptrace (PT_TRACE_ME, 0, 0, 0, 0);
-
- execv (program, allargs);
-
- fprintf (stderr, "Cannot exec %s: %s.\n", program,
- errno < sys_nerr ? sys_errlist[errno] : "unknown error");
- fflush (stderr);
- _exit (0177);
- }
-
- return pid;
-}
-
-/* Kill the inferior process. Make us have no inferior. */
-
-void
-kill_inferior (void)
-{
- if (inferior_pid == 0)
- return;
- ptrace (8, inferior_pid, 0, 0, 0);
- wait (0);
-/*************inferior_died ();****VK**************/
-}
-
-/* Attaching is not supported. */
-int
-myattach (int pid)
-{
- return -1;
-}
-
-/* Return nonzero if the given thread is still alive. */
-int
-mythread_alive (int pid)
-{
- return 1;
-}
-
-/* Wait for process, returns status */
-
-unsigned char
-mywait (char *status)
-{
- int pid;
- union wait w;
-
- enable_async_io ();
- pid = waitpid (inferior_pid, &w, 0);
- disable_async_io ();
- if (pid != inferior_pid)
- perror_with_name ("wait");
-
- if (WIFEXITED (w))
- {
- fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
- *status = 'W';
- return ((unsigned char) WEXITSTATUS (w));
- }
- else if (!WIFSTOPPED (w))
- {
- fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
- *status = 'X';
- return ((unsigned char) WTERMSIG (w));
- }
-
- fetch_inferior_registers (0);
-
- *status = 'T';
- return ((unsigned char) WSTOPSIG (w));
-}
-
-/* Resume execution of the inferior process.
- If STEP is nonzero, single-step it.
- If SIGNAL is nonzero, give it that signal. */
-
-void
-myresume (int step, int signal)
-{
- errno = 0;
- ptrace (step ? PT_STEP : PT_CONTINUE, inferior_pid, 1, signal, 0);
- if (errno)
- perror_with_name ("ptrace");
-}
-
-
-#if !defined (offsetof)
-#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
-#endif
-
-/* U_REGS_OFFSET is the offset of the registers within the u area. */
-#if !defined (U_REGS_OFFSET)
-#define U_REGS_OFFSET \
- ptrace (PT_READ_U, inferior_pid, \
- (PTRACE_ARG3_TYPE) (offsetof (struct user, u_ar0)), 0) \
- - KERNEL_U_ADDR
-#endif
-
-CORE_ADDR
-register_addr (int regno, CORE_ADDR blockend)
-{
- CORE_ADDR addr;
-
- if (regno < 0 || regno >= NUM_REGS)
- error ("Invalid register number %d.", regno);
-
- REGISTER_U_ADDR (addr, blockend, regno);
-
- return addr;
-}
-
-/* Fetch one register. */
-
-static void
-fetch_register (int regno)
-{
- register unsigned int regaddr;
- char buf[MAX_REGISTER_RAW_SIZE];
- register int i;
-
- /* Offset of registers within the u area. */
- unsigned int offset;
-
- offset = U_REGS_OFFSET;
-
- regaddr = register_addr (regno, offset);
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
- {
- errno = 0;
- *(int *) ®isters[regno * 4 + i] = ptrace (PT_RUREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) regaddr, 0, 0);
- regaddr += sizeof (int);
- if (errno != 0)
- {
- /* Warning, not error, in case we are attached; sometimes the
- kernel doesn't let us at the registers. */
- char *err = strerror (errno);
- char *msg = alloca (strlen (err) + 128);
- sprintf (msg, "reading register %d: %s", regno, err);
- error (msg);
- goto error_exit;
- }
- }
-error_exit:;
-}
-
-/* Fetch all registers, or just one, from the child process. */
-
-void
-fetch_inferior_registers (int regno)
-{
- if (regno == -1 || regno == 0)
- for (regno = 0; regno < NUM_REGS; regno++)
- fetch_register (regno);
- else
- fetch_register (regno);
-}
-
-/* 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)
-{
- register unsigned int regaddr;
- char buf[80];
- extern char registers[];
- register int i;
- unsigned int offset = U_REGS_OFFSET;
- int scratch;
-
- if (regno >= 0)
- {
- if (CANNOT_STORE_REGISTER (regno))
- return;
- regaddr = register_addr (regno, offset);
- errno = 0;
- if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
- {
- scratch = *(int *) ®isters[REGISTER_BYTE (regno)] | 0x3;
- ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
- scratch, 0);
- if (errno != 0)
- {
- /* Error, even if attached. Failing to write these two
- registers is pretty serious. */
- sprintf (buf, "writing register number %d", regno);
- perror_with_name (buf);
- }
- }
- else
- for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
- {
- errno = 0;
- ptrace (PT_WUREGS, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
- *(int *) ®isters[REGISTER_BYTE (regno) + i], 0);
- if (errno != 0)
- {
- /* Warning, not error, in case we are attached; sometimes the
- kernel doesn't let us at the registers. */
- char *err = strerror (errno);
- char *msg = alloca (strlen (err) + 128);
- sprintf (msg, "writing register %d: %s",
- regno, err);
- error (msg);
- return;
- }
- regaddr += sizeof (int);
- }
- }
- else
- for (regno = 0; regno < NUM_REGS; regno++)
- store_inferior_registers (regno);
-}
-
-/* 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. */
-
-/* Copy LEN bytes from inferior's memory starting at MEMADDR
- to debugger memory starting at MYADDR. */
-
-void
-read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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));
-
- /* Read all the longwords */
- for (i = 0; i < count; i++, addr += sizeof (int))
- {
- buffer[i] = ptrace (1, inferior_pid, addr, 0, 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
-write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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 (1, inferior_pid, addr, 0, 0);
-
- if (count > 1)
- {
- buffer[count - 1]
- = ptrace (1, inferior_pid,
- addr + (count - 1) * sizeof (int), 0, 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 (4, inferior_pid, addr, buffer[i], 0);
- if (errno)
- return errno;
- }
-
- return 0;
-}
-\f
-void
-initialize_low (void)
-{
-}
+++ /dev/null
-/* Low level interface to ptrace, for the remote server for GDB.
- Copyright 1986, 1987, 1993, 1994, 1995, 1999, 2000, 2001, 2002
- 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "server.h"
-#include "frame.h"
-#include "inferior.h"
-
-#include <stdio.h>
-#include <sys/param.h>
-#include <sys/dir.h>
-#define LYNXOS
-#include <sys/mem.h>
-#include <sys/signal.h>
-#include <sys/file.h>
-#include <sys/kernel.h>
-#ifndef __LYNXOS
-#define __LYNXOS
-#endif
-#include <sys/itimer.h>
-#include <sys/time.h>
-#include <sys/resource.h>
-#include <sys/proc.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sgtty.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-#include <sys/fpp.h>
-
-static char my_registers[REGISTER_BYTES];
-char *registers = my_registers;
-
-#include <sys/ptrace.h>
-
-/* Start an inferior process and returns its pid.
- ALLARGS is a vector of program-name and args. */
-
-int
-create_inferior (char *program, char **allargs)
-{
- int pid;
-
- pid = fork ();
- if (pid < 0)
- perror_with_name ("fork");
-
- if (pid == 0)
- {
- int pgrp;
-
- /* Switch child to it's own process group so that signals won't
- directly affect gdbserver. */
-
- pgrp = getpid ();
- setpgrp (0, pgrp);
- ioctl (0, TIOCSPGRP, &pgrp);
-
- ptrace (PTRACE_TRACEME, 0, (PTRACE_ARG3_TYPE) 0, 0);
-
- execv (program, allargs);
-
- fprintf (stderr, "GDBserver (process %d): Cannot exec %s: %s.\n",
- getpid (), program,
- errno < sys_nerr ? sys_errlist[errno] : "unknown error");
- fflush (stderr);
- _exit (0177);
- }
-
- return pid;
-}
-
-/* Attaching is not supported. */
-int
-myattach (int pid)
-{
- return -1;
-}
-
-/* Kill the inferior process. Make us have no inferior. */
-
-void
-kill_inferior (void)
-{
- if (inferior_pid == 0)
- return;
- ptrace (PTRACE_KILL, inferior_pid, 0, 0);
- wait (0);
-
- inferior_pid = 0;
-}
-
-/* Return nonzero if the given thread is still alive. */
-int
-mythread_alive (int pid)
-{
- /* Arggh. Apparently pthread_kill only works for threads within
- the process that calls pthread_kill.
-
- We want to avoid the lynx signal extensions as they simply don't
- map well to the generic gdb interface we want to keep.
-
- All we want to do is determine if a particular thread is alive;
- it appears as if we can just make a harmless thread specific
- ptrace call to do that. */
- return (ptrace (PTRACE_THREADUSER,
- BUILDPID (PIDGET (inferior_pid), pid), 0, 0) != -1);
-}
-
-/* Wait for process, returns status */
-
-unsigned char
-mywait (char *status)
-{
- int pid;
- union wait w;
-
- while (1)
- {
- enable_async_io ();
-
- pid = wait (&w);
-
- disable_async_io ();
-
- if (pid != PIDGET (inferior_pid))
- perror_with_name ("wait");
-
- thread_from_wait = w.w_tid;
- inferior_pid = BUILDPID (inferior_pid, w.w_tid);
-
- if (WIFSTOPPED (w)
- && WSTOPSIG (w) == SIGTRAP)
- {
- int realsig;
-
- realsig = ptrace (PTRACE_GETTRACESIG, inferior_pid,
- (PTRACE_ARG3_TYPE) 0, 0);
-
- if (realsig == SIGNEWTHREAD)
- {
- /* It's a new thread notification. Nothing to do here since
- the machine independent code in wait_for_inferior will
- add the thread to the thread list and restart the thread
- when pid != inferior_pid and pid is not in the thread list.
- We don't even want to muck with realsig -- the code in
- wait_for_inferior expects SIGTRAP. */
- ;
- }
- }
- break;
- }
-
- if (WIFEXITED (w))
- {
- *status = 'W';
- return ((unsigned char) WEXITSTATUS (w));
- }
- else if (!WIFSTOPPED (w))
- {
- *status = 'X';
- return ((unsigned char) WTERMSIG (w));
- }
-
- fetch_inferior_registers (0);
-
- *status = 'T';
- return ((unsigned char) WSTOPSIG (w));
-}
-
-/* Resume execution of the inferior process.
- If STEP is nonzero, single-step it.
- If SIGNAL is nonzero, give it that signal. */
-
-void
-myresume (int step, int signal)
-{
- errno = 0;
- ptrace (step ? PTRACE_SINGLESTEP_ONE : PTRACE_CONT,
- BUILDPID (inferior_pid, cont_thread == -1 ? 0 : cont_thread),
- 1, signal);
- if (errno)
- perror_with_name ("ptrace");
-}
-
-#undef offsetof
-#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
-
-/* Mapping between GDB register #s and offsets into econtext. Must be
- consistent with REGISTER_NAMES macro in various tmXXX.h files. */
-
-#define X(ENTRY)(offsetof(struct econtext, ENTRY))
-
-#ifdef I386
-/* Mappings from tm-i386v.h */
-
-static int regmap[] =
-{
- X (eax),
- X (ecx),
- X (edx),
- X (ebx),
- X (esp), /* sp */
- X (ebp), /* fp */
- X (esi),
- X (edi),
- X (eip), /* pc */
- X (flags), /* ps */
- X (cs),
- X (ss),
- X (ds),
- X (es),
- X (ecode), /* Lynx doesn't give us either fs or gs, so */
- X (fault), /* we just substitute these two in the hopes
- that they are useful. */
-};
-#endif
-
-#ifdef M68K
-/* Mappings from tm-m68k.h */
-
-static int regmap[] =
-{
- X (regs[0]), /* d0 */
- X (regs[1]), /* d1 */
- X (regs[2]), /* d2 */
- X (regs[3]), /* d3 */
- X (regs[4]), /* d4 */
- X (regs[5]), /* d5 */
- X (regs[6]), /* d6 */
- X (regs[7]), /* d7 */
- X (regs[8]), /* a0 */
- X (regs[9]), /* a1 */
- X (regs[10]), /* a2 */
- X (regs[11]), /* a3 */
- X (regs[12]), /* a4 */
- X (regs[13]), /* a5 */
- X (regs[14]), /* fp */
- 0, /* sp */
- X (status), /* ps */
- X (pc),
-
- X (fregs[0 * 3]), /* fp0 */
- X (fregs[1 * 3]), /* fp1 */
- X (fregs[2 * 3]), /* fp2 */
- X (fregs[3 * 3]), /* fp3 */
- X (fregs[4 * 3]), /* fp4 */
- X (fregs[5 * 3]), /* fp5 */
- X (fregs[6 * 3]), /* fp6 */
- X (fregs[7 * 3]), /* fp7 */
-
- X (fcregs[0]), /* fpcontrol */
- X (fcregs[1]), /* fpstatus */
- X (fcregs[2]), /* fpiaddr */
- X (ssw), /* fpcode */
- X (fault), /* fpflags */
-};
-#endif
-
-#ifdef SPARC
-/* Mappings from tm-sparc.h */
-
-#define FX(ENTRY)(offsetof(struct fcontext, ENTRY))
-
-static int regmap[] =
-{
- -1, /* g0 */
- X (g1),
- X (g2),
- X (g3),
- X (g4),
- -1, /* g5->g7 aren't saved by Lynx */
- -1,
- -1,
-
- X (o[0]),
- X (o[1]),
- X (o[2]),
- X (o[3]),
- X (o[4]),
- X (o[5]),
- X (o[6]), /* sp */
- X (o[7]), /* ra */
-
- -1, -1, -1, -1, -1, -1, -1, -1, /* l0 -> l7 */
-
- -1, -1, -1, -1, -1, -1, -1, -1, /* i0 -> i7 */
-
- FX (f.fregs[0]), /* f0 */
- FX (f.fregs[1]),
- FX (f.fregs[2]),
- FX (f.fregs[3]),
- FX (f.fregs[4]),
- FX (f.fregs[5]),
- FX (f.fregs[6]),
- FX (f.fregs[7]),
- FX (f.fregs[8]),
- FX (f.fregs[9]),
- FX (f.fregs[10]),
- FX (f.fregs[11]),
- FX (f.fregs[12]),
- FX (f.fregs[13]),
- FX (f.fregs[14]),
- FX (f.fregs[15]),
- FX (f.fregs[16]),
- FX (f.fregs[17]),
- FX (f.fregs[18]),
- FX (f.fregs[19]),
- FX (f.fregs[20]),
- FX (f.fregs[21]),
- FX (f.fregs[22]),
- FX (f.fregs[23]),
- FX (f.fregs[24]),
- FX (f.fregs[25]),
- FX (f.fregs[26]),
- FX (f.fregs[27]),
- FX (f.fregs[28]),
- FX (f.fregs[29]),
- FX (f.fregs[30]),
- FX (f.fregs[31]),
-
- X (y),
- X (psr),
- X (wim),
- X (tbr),
- X (pc),
- X (npc),
- FX (fsr), /* fpsr */
- -1, /* cpsr */
-};
-#endif
-
-#ifdef SPARC
-
-/* This routine handles some oddball cases for Sparc registers and LynxOS.
- In partucular, it causes refs to G0, g5->7, and all fp regs to return zero.
- It also handles knows where to find the I & L regs on the stack. */
-
-void
-fetch_inferior_registers (int regno)
-{
-#if 0
- int whatregs = 0;
-
-#define WHATREGS_FLOAT 1
-#define WHATREGS_GEN 2
-#define WHATREGS_STACK 4
-
- if (regno == -1)
- whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- whatregs = WHATREGS_STACK;
- else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
- whatregs = WHATREGS_FLOAT;
- else
- whatregs = WHATREGS_GEN;
-
- if (whatregs & WHATREGS_GEN)
- {
- struct econtext ec; /* general regs */
- char buf[MAX_REGISTER_RAW_SIZE];
- int retval;
- int i;
-
- errno = 0;
- retval = ptrace (PTRACE_GETREGS,
- BUILDPID (inferior_pid, general_thread),
- (PTRACE_ARG3_TYPE) & ec,
- 0);
- if (errno)
- perror_with_name ("Sparc fetch_inferior_registers(ptrace)");
-
- memset (buf, 0, REGISTER_RAW_SIZE (G0_REGNUM));
- supply_register (G0_REGNUM, buf);
- supply_register (TBR_REGNUM, (char *) &ec.tbr);
-
- memcpy (®isters[REGISTER_BYTE (G1_REGNUM)], &ec.g1,
- 4 * REGISTER_RAW_SIZE (G1_REGNUM));
- for (i = G1_REGNUM; i <= G1_REGNUM + 3; i++)
- register_valid[i] = 1;
-
- supply_register (PS_REGNUM, (char *) &ec.psr);
- supply_register (Y_REGNUM, (char *) &ec.y);
- supply_register (PC_REGNUM, (char *) &ec.pc);
- supply_register (NPC_REGNUM, (char *) &ec.npc);
- supply_register (WIM_REGNUM, (char *) &ec.wim);
-
- memcpy (®isters[REGISTER_BYTE (O0_REGNUM)], ec.o,
- 8 * REGISTER_RAW_SIZE (O0_REGNUM));
- for (i = O0_REGNUM; i <= O0_REGNUM + 7; i++)
- register_valid[i] = 1;
- }
-
- if (whatregs & WHATREGS_STACK)
- {
- CORE_ADDR sp;
- int i;
-
- sp = read_register (SP_REGNUM);
-
- target_xfer_memory (sp + FRAME_SAVED_I0,
- ®isters[REGISTER_BYTE (I0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (I0_REGNUM), 0);
- for (i = I0_REGNUM; i <= I7_REGNUM; i++)
- register_valid[i] = 1;
-
- target_xfer_memory (sp + FRAME_SAVED_L0,
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (L0_REGNUM), 0);
- for (i = L0_REGNUM; i <= L0_REGNUM + 7; i++)
- register_valid[i] = 1;
- }
-
- if (whatregs & WHATREGS_FLOAT)
- {
- struct fcontext fc; /* fp regs */
- int retval;
- int i;
-
- errno = 0;
- retval = ptrace (PTRACE_GETFPREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & fc,
- 0);
- if (errno)
- perror_with_name ("Sparc fetch_inferior_registers(ptrace)");
-
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], fc.f.fregs,
- 32 * REGISTER_RAW_SIZE (FP0_REGNUM));
- for (i = FP0_REGNUM; i <= FP0_REGNUM + 31; i++)
- register_valid[i] = 1;
-
- supply_register (FPS_REGNUM, (char *) &fc.fsr);
- }
-#endif
-}
-
-/* This routine handles storing of the I & L regs for the Sparc. The trick
- here is that they actually live on the stack. The really tricky part is
- that when changing the stack pointer, the I & L regs must be written to
- where the new SP points, otherwise the regs will be incorrect when the
- process is started up again. We assume that the I & L regs are valid at
- this point. */
-
-void
-store_inferior_registers (int regno)
-{
-#if 0
- int whatregs = 0;
-
- if (regno == -1)
- whatregs = WHATREGS_FLOAT | WHATREGS_GEN | WHATREGS_STACK;
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- whatregs = WHATREGS_STACK;
- else if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 32)
- whatregs = WHATREGS_FLOAT;
- else if (regno == SP_REGNUM)
- whatregs = WHATREGS_STACK | WHATREGS_GEN;
- else
- whatregs = WHATREGS_GEN;
-
- if (whatregs & WHATREGS_GEN)
- {
- struct econtext ec; /* general regs */
- int retval;
-
- ec.tbr = read_register (TBR_REGNUM);
- memcpy (&ec.g1, ®isters[REGISTER_BYTE (G1_REGNUM)],
- 4 * REGISTER_RAW_SIZE (G1_REGNUM));
-
- ec.psr = read_register (PS_REGNUM);
- ec.y = read_register (Y_REGNUM);
- ec.pc = read_register (PC_REGNUM);
- ec.npc = read_register (NPC_REGNUM);
- ec.wim = read_register (WIM_REGNUM);
-
- memcpy (ec.o, ®isters[REGISTER_BYTE (O0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (O0_REGNUM));
-
- errno = 0;
- retval = ptrace (PTRACE_SETREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & ec,
- 0);
- if (errno)
- perror_with_name ("Sparc fetch_inferior_registers(ptrace)");
- }
-
- if (whatregs & WHATREGS_STACK)
- {
- int regoffset;
- CORE_ADDR sp;
-
- sp = read_register (SP_REGNUM);
-
- if (regno == -1 || regno == SP_REGNUM)
- {
- if (!register_valid[L0_REGNUM + 5])
- abort ();
- target_xfer_memory (sp + FRAME_SAVED_I0,
- ®isters[REGISTER_BYTE (I0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (I0_REGNUM), 1);
-
- target_xfer_memory (sp + FRAME_SAVED_L0,
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 8 * REGISTER_RAW_SIZE (L0_REGNUM), 1);
- }
- else if (regno >= L0_REGNUM && regno <= I7_REGNUM)
- {
- if (!register_valid[regno])
- abort ();
- if (regno >= L0_REGNUM && regno <= L0_REGNUM + 7)
- regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (L0_REGNUM)
- + FRAME_SAVED_L0;
- else
- regoffset = REGISTER_BYTE (regno) - REGISTER_BYTE (I0_REGNUM)
- + FRAME_SAVED_I0;
- target_xfer_memory (sp + regoffset, ®isters[REGISTER_BYTE (regno)],
- REGISTER_RAW_SIZE (regno), 1);
- }
- }
-
- if (whatregs & WHATREGS_FLOAT)
- {
- struct fcontext fc; /* fp regs */
- int retval;
-
-/* We read fcontext first so that we can get good values for fq_t... */
- errno = 0;
- retval = ptrace (PTRACE_GETFPREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & fc,
- 0);
- if (errno)
- perror_with_name ("Sparc fetch_inferior_registers(ptrace)");
-
- memcpy (fc.f.fregs, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- 32 * REGISTER_RAW_SIZE (FP0_REGNUM));
-
- fc.fsr = read_register (FPS_REGNUM);
-
- errno = 0;
- retval = ptrace (PTRACE_SETFPREGS, BUILDPID (inferior_pid, general_thread), (PTRACE_ARG3_TYPE) & fc,
- 0);
- if (errno)
- perror_with_name ("Sparc fetch_inferior_registers(ptrace)");
- }
-#endif
-}
-#endif /* SPARC */
-
-#ifndef SPARC
-
-/* Return the offset relative to the start of the per-thread data to the
- saved context block. */
-
-static unsigned long
-lynx_registers_addr (void)
-{
- CORE_ADDR stblock;
- int ecpoff = offsetof (st_t, ecp);
- CORE_ADDR ecp;
-
- errno = 0;
- stblock = (CORE_ADDR) ptrace (PTRACE_THREADUSER, BUILDPID (inferior_pid, general_thread),
- (PTRACE_ARG3_TYPE) 0, 0);
- if (errno)
- perror_with_name ("PTRACE_THREADUSER");
-
- ecp = (CORE_ADDR) ptrace (PTRACE_PEEKTHREAD, BUILDPID (inferior_pid, general_thread),
- (PTRACE_ARG3_TYPE) ecpoff, 0);
- if (errno)
- perror_with_name ("lynx_registers_addr(PTRACE_PEEKTHREAD)");
-
- return ecp - stblock;
-}
-
-/* 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 ignored)
-{
- int regno;
- unsigned long reg;
- unsigned long ecp;
-
- ecp = lynx_registers_addr ();
-
- for (regno = 0; regno < NUM_REGS; regno++)
- {
- int ptrace_fun = PTRACE_PEEKTHREAD;
-
-#ifdef PTRACE_PEEKUSP
- ptrace_fun = regno == SP_REGNUM ? PTRACE_PEEKUSP : PTRACE_PEEKTHREAD;
-#endif
-
- errno = 0;
- reg = ptrace (ptrace_fun, BUILDPID (inferior_pid, general_thread),
- (PTRACE_ARG3_TYPE) (ecp + regmap[regno]), 0);
- if (errno)
- perror_with_name ("fetch_inferior_registers(PTRACE_PEEKTHREAD)");
-
- *(unsigned long *) ®isters[REGISTER_BYTE (regno)] = reg;
- }
-}
-
-/* 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 ignored)
-{
- int regno;
- unsigned long reg;
- unsigned long ecp;
-
- ecp = lynx_registers_addr ();
-
- for (regno = 0; regno < NUM_REGS; regno++)
- {
- int ptrace_fun = PTRACE_POKEUSER;
-
-#ifdef PTRACE_POKEUSP
- ptrace_fun = regno == SP_REGNUM ? PTRACE_POKEUSP : PTRACE_POKEUSER;
-#endif
-
- reg = *(unsigned long *) ®isters[REGISTER_BYTE (regno)];
-
- errno = 0;
- ptrace (ptrace_fun, BUILDPID (inferior_pid, general_thread),
- (PTRACE_ARG3_TYPE) (ecp + regmap[regno]), reg);
- if (errno)
- perror_with_name ("PTRACE_POKEUSER");
- }
-}
-
-#endif /* ! SPARC */
-
-/* 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. */
-
-/* Copy LEN bytes from inferior's memory starting at MEMADDR
- to debugger memory starting at MYADDR. */
-
-void
-read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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));
-
- /* Read all the longwords */
- for (i = 0; i < count; i++, addr += sizeof (int))
- {
- buffer[i] = ptrace (PTRACE_PEEKTEXT, BUILDPID (inferior_pid, general_thread), 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
-write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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 (PTRACE_PEEKTEXT, BUILDPID (inferior_pid, general_thread), addr, 0);
-
- if (count > 1)
- {
- buffer[count - 1]
- = ptrace (PTRACE_PEEKTEXT, BUILDPID (inferior_pid, general_thread),
- 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))
- {
- while (1)
- {
- errno = 0;
- ptrace (PTRACE_POKETEXT, BUILDPID (inferior_pid, general_thread), addr, buffer[i]);
- if (errno)
- {
- fprintf (stderr, "\
-ptrace (PTRACE_POKETEXT): errno=%d, pid=0x%x, addr=0x%x, buffer[i] = 0x%x\n",
- errno, BUILDPID (inferior_pid, general_thread),
- addr, buffer[i]);
- fprintf (stderr, "Sleeping for 1 second\n");
- sleep (1);
- }
- else
- break;
- }
- }
-
- return 0;
-}
-\f
-void
-initialize_low (void)
-{
-}
+++ /dev/null
-/* Low level interface to ptrace, for the remote server for GDB.
- Copyright 1986, 1987, 1993, 2000, 2001, 2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "server.h"
-#include <sys/types.h>
-#include <sys/wait.h>
-#include "frame.h"
-#include "inferior.h"
-
-#include <stdio.h>
-#include <errno.h>
-
-/***************Begin MY defs*********************/
-static char my_registers[REGISTER_BYTES];
-char *registers = my_registers;
-/***************End MY defs*********************/
-
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-
-#define RF(dst, src) \
- memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src))
-
-#define RS(src, dst) \
- memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst))
-
-#ifdef __i386__
-struct env387
- {
- unsigned short control;
- unsigned short r0;
- unsigned short status;
- unsigned short r1;
- unsigned short tag;
- unsigned short r2;
- unsigned long eip;
- unsigned short code_seg;
- unsigned short opcode;
- unsigned long operand;
- unsigned short operand_seg;
- unsigned short r3;
- unsigned char regs[8][10];
- };
-
-/* i386_register_raw_size[i] is the number of bytes of storage in the
- actual machine representation for register i. */
-int i386_register_raw_size[MAX_NUM_REGS] = {
- 4, 4, 4, 4,
- 4, 4, 4, 4,
- 4, 4, 4, 4,
- 4, 4, 4, 4,
- 10, 10, 10, 10,
- 10, 10, 10, 10,
- 4, 4, 4, 4,
- 4, 4, 4, 4,
- 16, 16, 16, 16,
- 16, 16, 16, 16,
- 4
-};
-
-int i386_register_byte[MAX_NUM_REGS];
-
-static void
-initialize_arch (void)
-{
- /* Initialize the table saying where each register starts in the
- register file. */
- {
- int i, offset;
-
- offset = 0;
- for (i = 0; i < MAX_NUM_REGS; i++)
- {
- i386_register_byte[i] = offset;
- offset += i386_register_raw_size[i];
- }
- }
-}
-#endif /* !__i386__ */
-
-#ifdef __m68k__
-static void
-initialize_arch (void)
-{
-}
-#endif /* !__m68k__ */
-
-#ifdef __ns32k__
-static void
-initialize_arch (void)
-{
-}
-#endif /* !__ns32k__ */
-
-#ifdef __powerpc__
-#include "ppc-tdep.h"
-
-static void
-initialize_arch (void)
-{
-}
-#endif /* !__powerpc__ */
-
-
-/* Start an inferior process and returns its pid.
- ALLARGS is a vector of program-name and args. */
-
-int
-create_inferior (char *program, char **allargs)
-{
- int pid;
-
- pid = fork ();
- if (pid < 0)
- perror_with_name ("fork");
-
- if (pid == 0)
- {
- ptrace (PT_TRACE_ME, 0, 0, 0);
-
- execv (program, allargs);
-
- fprintf (stderr, "Cannot exec %s: %s.\n", program,
- errno < sys_nerr ? sys_errlist[errno] : "unknown error");
- fflush (stderr);
- _exit (0177);
- }
-
- return pid;
-}
-
-/* Attaching is not supported. */
-int
-myattach (int pid)
-{
- return -1;
-}
-
-/* Kill the inferior process. Make us have no inferior. */
-
-void
-kill_inferior (void)
-{
- if (inferior_pid == 0)
- return;
- ptrace (PT_KILL, inferior_pid, 0, 0);
- wait (0);
- /*************inferior_died ();****VK**************/
-}
-
-/* Return nonzero if the given thread is still alive. */
-int
-mythread_alive (int pid)
-{
- return 1;
-}
-
-/* Wait for process, returns status */
-
-unsigned char
-mywait (char *status)
-{
- int pid;
- int w;
-
- enable_async_io ();
- pid = waitpid (inferior_pid, &w, 0);
- disable_async_io ();
- if (pid != inferior_pid)
- perror_with_name ("wait");
-
- if (WIFEXITED (w))
- {
- fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
- *status = 'W';
- return ((unsigned char) WEXITSTATUS (w));
- }
- else if (!WIFSTOPPED (w))
- {
- fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
- *status = 'X';
- return ((unsigned char) WTERMSIG (w));
- }
-
- fetch_inferior_registers (0);
-
- *status = 'T';
- return ((unsigned char) WSTOPSIG (w));
-}
-
-/* Resume execution of the inferior process.
- If STEP is nonzero, single-step it.
- If SIGNAL is nonzero, give it that signal. */
-
-void
-myresume (int step, int signal)
-{
- errno = 0;
- ptrace (step ? PT_STEP : PT_CONTINUE, inferior_pid,
- (PTRACE_ARG3_TYPE) 1, signal);
- if (errno)
- perror_with_name ("ptrace");
-}
-
-
-#ifdef __i386__
-/* 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 ignored)
-{
- struct reg inferior_registers;
- struct env387 inferior_fp_registers;
-
- ptrace (PT_GETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_registers, 0);
- ptrace (PT_GETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
-
- RF ( 0, inferior_registers.r_eax);
- RF ( 1, inferior_registers.r_ecx);
- RF ( 2, inferior_registers.r_edx);
- RF ( 3, inferior_registers.r_ebx);
- RF ( 4, inferior_registers.r_esp);
- RF ( 5, inferior_registers.r_ebp);
- RF ( 6, inferior_registers.r_esi);
- RF ( 7, inferior_registers.r_edi);
- RF ( 8, inferior_registers.r_eip);
- RF ( 9, inferior_registers.r_eflags);
- RF (10, inferior_registers.r_cs);
- RF (11, inferior_registers.r_ss);
- RF (12, inferior_registers.r_ds);
- RF (13, inferior_registers.r_es);
- RF (14, inferior_registers.r_fs);
- RF (15, inferior_registers.r_gs);
-
- RF (FP0_REGNUM, inferior_fp_registers.regs[0]);
- RF (FP0_REGNUM + 1, inferior_fp_registers.regs[1]);
- RF (FP0_REGNUM + 2, inferior_fp_registers.regs[2]);
- RF (FP0_REGNUM + 3, inferior_fp_registers.regs[3]);
- RF (FP0_REGNUM + 4, inferior_fp_registers.regs[4]);
- 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]);
-
- 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);
-}
-
-/* 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 ignored)
-{
- struct reg inferior_registers;
- 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);
-
- 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]);
-
- 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);
-
- ptrace (PT_SETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_registers, 0);
- ptrace (PT_SETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0);
-}
-#endif /* !__i386__ */
-
-#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 (DEPRECATED_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 (DEPRECATED_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__ */
-
-#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
-fetch_inferior_registers (int regno)
-{
- struct reg inferior_registers;
-#ifdef PT_GETFPREGS
- struct fpreg inferior_fp_registers;
-#endif
- 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]);
- 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);
- RF (PC_REGNUM, inferior_registers.pc);
-
-#ifdef PT_GETFPREGS
- ptrace (PT_GETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
- for (i = 0; i < 32; i++)
- RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
-#endif
-}
-
-/* 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;
-#ifdef PT_SETFPREGS
- struct fpreg inferior_fp_registers;
-#endif
- int i;
-
- for (i = 0; i < 32; i++)
- RS (i, inferior_registers.fixreg[i]);
- 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);
- RS (PC_REGNUM, inferior_registers.pc);
- ptrace (PT_SETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_registers, 0);
-
-#ifdef PT_SETFPREGS
- for (i = 0; i < 32; i++)
- RS (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]);
- ptrace (PT_SETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0);
-#endif
-}
-#endif /* !__powerpc__ */
-
-/* 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. */
-
-/* Copy LEN bytes from inferior's memory starting at MEMADDR
- to debugger memory starting at MYADDR. */
-
-void
-read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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));
-
- /* 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
-write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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;
-}
-\f
-void
-initialize_low (void)
-{
- initialize_arch ();
-}
+++ /dev/null
-/* Low level interface to simulators, for the remote server for GDB.
- Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
- 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "server.h"
-#include "bfd.h"
-#include "callback.h" /* GDB simulator callback interface */
-#include "remote-sim.h" /* GDB simulator interface */
-
-extern int remote_debug;
-
-extern host_callback default_callback; /* in sim/common/callback.c */
-
-static char my_registers[REGISTER_BYTES] __attribute__ ((aligned));
-char * registers = my_registers;
-
-int target_byte_order; /* used by simulator */
-
-/* We record the result of sim_open so we can pass it
- back to the other sim_foo routines. */
-static SIM_DESC gdbsim_desc = 0;
-
-/* This version of "load" should be usable for any simulator that
- does not support loading itself. */
-
-static void
-mygeneric_load (bfd *loadfile_bfd)
-{
- asection *s;
-
- for (s = loadfile_bfd->sections; s; s = s->next)
- {
- if (s->flags & SEC_LOAD)
- {
- bfd_size_type size;
-
- size = bfd_get_section_size_before_reloc (s);
- if (size > 0)
- {
- char *buffer;
- bfd_vma lma; /* use load address, not virtual address */
-
- buffer = xmalloc (size);
- lma = s->lma;
-
- /* Is this really necessary? I guess it gives the user something
- to look at during a long download. */
- printf ("Loading section %s, size 0x%lx lma 0x%lx\n",
- bfd_get_section_name (loadfile_bfd, s),
- (unsigned long) size,
- (unsigned long) lma); /* chops high 32 bits. FIXME!! */
-
- bfd_get_section_contents (loadfile_bfd, s, buffer, 0, size);
-
- write_inferior_memory (lma, buffer, size);
- free (buffer);
- }
- }
- }
-
- printf ("Start address 0x%lx\n",
- (unsigned long) loadfile_bfd->start_address);
-
- /* We were doing this in remote-mips.c, I suspect it is right
- for other targets too. */
- /* write_pc (loadfile_bfd->start_address); *//* FIXME!! */
-}
-
-int
-create_inferior (char *program, char **argv)
-{
- bfd *abfd;
- int pid = 0;
- char **new_argv;
- int nargs;
-
- abfd = bfd_openr (program, 0);
- if (!abfd)
- {
- fprintf (stderr, "gdbserver: can't open %s: %s\n",
- program, bfd_errmsg (bfd_get_error ()));
- exit (1);
- }
-
- if (!bfd_check_format (abfd, bfd_object))
- {
- fprintf (stderr, "gdbserver: unknown load format for %s: %s\n",
- program, bfd_errmsg (bfd_get_error ()));
- exit (1);
- }
-
- /* Add "-E big" or "-E little" to the argument list depending on the
- endianness of the program to be loaded. */
- for (nargs = 0; argv[nargs] != NULL; nargs++) /* count the args */
- ;
- new_argv = alloca (sizeof (char *) * (nargs + 3)); /* allocate new args */
- for (nargs = 0; argv[nargs] != NULL; nargs++) /* copy old to new */
- new_argv[nargs] = argv[nargs];
- new_argv[nargs] = "-E";
- new_argv[nargs + 1] = bfd_big_endian (abfd) ? "big" : "little";
- new_argv[nargs + 2] = NULL;
- argv = new_argv;
-
- /* Create an instance of the simulator. */
- default_callback.init (&default_callback);
- gdbsim_desc = sim_open (SIM_OPEN_STANDALONE, &default_callback, abfd, argv);
- if (gdbsim_desc == 0)
- exit (1);
-
- /* Load the program into the simulator. */
- if (abfd)
- if (sim_load (gdbsim_desc, program, NULL, 0) == SIM_RC_FAIL)
- mygeneric_load (abfd);
-
- /* Create an inferior process in the simulator. This initializes SP. */
- sim_create_inferior (gdbsim_desc, abfd, argv, /* env */ NULL);
- sim_resume (gdbsim_desc, 1, 0); /* execute one instr */
- return pid;
-}
-
-/* Attaching is not supported. */
-int
-myattach (int pid)
-{
- return -1;
-}
-
-/* Kill the inferior process. Make us have no inferior. */
-
-void
-kill_inferior (void)
-{
- sim_close (gdbsim_desc, 0);
- default_callback.shutdown (&default_callback);
-}
-
-/* Fetch one register. */
-
-static void
-fetch_register (int regno)
-{
- sim_fetch_register (gdbsim_desc, regno, ®isters[REGISTER_BYTE (regno)],
- REGISTER_RAW_SIZE (regno));
-}
-
-/* Fetch all registers, or just one, from the child process. */
-
-void
-fetch_inferior_registers (int regno)
-{
- if (regno == -1 || regno == 0)
- for (regno = 0; regno < NUM_REGS /*-NUM_FREGS*/ ; regno++)
- fetch_register (regno);
- else
- fetch_register (regno);
-}
-
-/* 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)
-{
- if (regno == -1)
- {
- for (regno = 0; regno < NUM_REGS; regno++)
- store_inferior_registers (regno);
- }
- else
- sim_store_register (gdbsim_desc, regno, ®isters[REGISTER_BYTE (regno)],
- REGISTER_RAW_SIZE (regno));
-}
-
-/* Return nonzero if the given thread is still alive. */
-int
-mythread_alive (int pid)
-{
- return 1;
-}
-
-/* Wait for process, returns status */
-
-unsigned char
-mywait (char *status)
-{
- int sigrc;
- enum sim_stop reason;
-
- sim_stop_reason (gdbsim_desc, &reason, &sigrc);
- switch (reason)
- {
- case sim_exited:
- if (remote_debug)
- printf ("\nChild exited with retcode = %x \n", sigrc);
- *status = 'W';
- return sigrc;
-
-#if 0
- case sim_stopped:
- if (remote_debug)
- printf ("\nChild terminated with signal = %x \n", sigrc);
- *status = 'X';
- return sigrc;
-#endif
-
- default: /* should this be sim_signalled or sim_stopped? FIXME!! */
- if (remote_debug)
- printf ("\nChild received signal = %x \n", sigrc);
- fetch_inferior_registers (0);
- *status = 'T';
- return (unsigned char) sigrc;
- }
-}
-
-/* Resume execution of the inferior process.
- If STEP is nonzero, single-step it.
- If SIGNAL is nonzero, give it that signal. */
-
-void
-myresume (int step, int signo)
-{
- /* Should be using target_signal_to_host() or signal numbers in target.h
- to convert GDB signal number to target signal number. */
- sim_resume (gdbsim_desc, step, signo);
-}
-
-/* Copy LEN bytes from inferior's memory starting at MEMADDR
- to debugger memory starting at MYADDR. */
-
-void
-read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- sim_read (gdbsim_desc, memaddr, myaddr, 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
-write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- sim_write (gdbsim_desc, memaddr, myaddr, len); /* should check for error. FIXME!! */
- return 0;
-}
-
-void
-initialize_low (void)
-{
-}
+++ /dev/null
-/* Low level interface to ptrace, for the remote server for GDB.
- Copyright 1986, 1987, 1993, 1994, 1995, 1997, 1999, 2000, 2001, 2002
- 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "server.h"
-#include <sys/wait.h>
-#include "frame.h"
-#include "inferior.h"
-/***************************
-#include "initialize.h"
-****************************/
-
-#include <stdio.h>
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <sys/user.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sgtty.h>
-#include <fcntl.h>
-
-/***************Begin MY defs*********************/
-static char my_registers[REGISTER_BYTES];
-char *registers = my_registers;
-/***************End MY defs*********************/
-
-#include <sys/ptrace.h>
-#include <sys/reg.h>
-
-extern int sys_nerr;
-extern char **sys_errlist;
-extern int errno;
-
-/* Start an inferior process and returns its pid.
- ALLARGS is a vector of program-name and args. */
-
-int
-create_inferior (char *program, char **allargs)
-{
- int pid;
-
- pid = fork ();
- if (pid < 0)
- perror_with_name ("fork");
-
- if (pid == 0)
- {
- ptrace (PTRACE_TRACEME);
-
- execv (program, allargs);
-
- fprintf (stderr, "Cannot exec %s: %s.\n", program,
- errno < sys_nerr ? sys_errlist[errno] : "unknown error");
- fflush (stderr);
- _exit (0177);
- }
-
- return pid;
-}
-
-/* Attaching is not supported. */
-int
-myattach (int pid)
-{
- return -1;
-}
-
-/* Kill the inferior process. Make us have no inferior. */
-
-void
-kill_inferior (void)
-{
- if (inferior_pid == 0)
- return;
- ptrace (8, inferior_pid, 0, 0);
- wait (0);
-/*************inferior_died ();****VK**************/
-}
-
-/* Return nonzero if the given thread is still alive. */
-int
-mythread_alive (int pid)
-{
- return 1;
-}
-
-/* Wait for process, returns status */
-
-unsigned char
-mywait (char *status)
-{
- int pid;
- union wait w;
-
- enable_async_io ();
- pid = waitpid (inferior_pid, &w, 0);
- disable_async_io ();
- if (pid != inferior_pid)
- perror_with_name ("wait");
-
- if (WIFEXITED (w))
- {
- fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
- *status = 'W';
- return ((unsigned char) WEXITSTATUS (w));
- }
- else if (!WIFSTOPPED (w))
- {
- fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
- *status = 'X';
- return ((unsigned char) WTERMSIG (w));
- }
-
- fetch_inferior_registers (0);
-
- *status = 'T';
- return ((unsigned char) WSTOPSIG (w));
-}
-
-/* Resume execution of the inferior process.
- If STEP is nonzero, single-step it.
- If SIGNAL is nonzero, give it that signal. */
-
-void
-myresume (int step, int signal)
-{
- errno = 0;
- ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal);
- if (errno)
- perror_with_name ("ptrace");
-}
-
-/* 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 ignored)
-{
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
- int i;
-
- /* Global and Out regs are fetched directly, as well as the control
- registers. If we're getting one of the in or local regs,
- and the stack pointer has not yet been fetched,
- we have to do that first, since they're found in memory relative
- to the stack pointer. */
-
- if (ptrace (PTRACE_GETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_registers, 0))
- perror ("ptrace_getregs");
-
- registers[REGISTER_BYTE (0)] = 0;
- memcpy (®isters[REGISTER_BYTE (1)], &inferior_registers.r_g1,
- 15 * REGISTER_RAW_SIZE (G0_REGNUM));
- *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
- *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
- *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)] = inferior_registers.r_npc;
- *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)] = inferior_registers.r_y;
-
- /* Floating point registers */
-
- if (ptrace (PTRACE_GETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_fp_registers,
- 0))
- perror ("ptrace_getfpregs");
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
- sizeof inferior_fp_registers.fpu_fr);
-
- /* These regs are saved on the stack by the kernel. Only read them
- all (16 ptrace calls!) if we really need them. */
-
- read_inferior_memory (*(CORE_ADDR *) & registers[REGISTER_BYTE (SP_REGNUM)],
- ®isters[REGISTER_BYTE (L0_REGNUM)],
- 16 * REGISTER_RAW_SIZE (L0_REGNUM));
-}
-
-/* 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 ignored)
-{
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
- CORE_ADDR sp = *(CORE_ADDR *) & registers[REGISTER_BYTE (SP_REGNUM)];
-
- write_inferior_memory (sp, ®isters[REGISTER_BYTE (L0_REGNUM)],
- 16 * REGISTER_RAW_SIZE (L0_REGNUM));
-
- memcpy (&inferior_registers.r_g1, ®isters[REGISTER_BYTE (G1_REGNUM)],
- 15 * REGISTER_RAW_SIZE (G1_REGNUM));
-
- inferior_registers.r_ps =
- *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)];
- inferior_registers.r_pc =
- *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
- inferior_registers.r_npc =
- *(int *) ®isters[REGISTER_BYTE (NPC_REGNUM)];
- inferior_registers.r_y =
- *(int *) ®isters[REGISTER_BYTE (Y_REGNUM)];
-
- if (ptrace (PTRACE_SETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_registers, 0))
- perror ("ptrace_setregs");
-
- memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.fpu_fr);
-
- if (ptrace (PTRACE_SETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0))
- perror ("ptrace_setfpregs");
-}
-
-/* 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. */
-
-/* Copy LEN bytes from inferior's memory starting at MEMADDR
- to debugger memory starting at MYADDR. */
-
-void
-read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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));
-
- /* Read all the longwords */
- for (i = 0; i < count; i++, addr += sizeof (int))
- {
- buffer[i] = ptrace (1, inferior_pid, 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
-write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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 (1, inferior_pid, addr, 0);
-
- if (count > 1)
- {
- buffer[count - 1]
- = ptrace (1, inferior_pid,
- addr + (count - 1) * sizeof (int), 0);
- }
-
- /* Copy data to be written over corresponding part of buffer */
-
- bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
-
- /* Write the entire buffer. */
-
- for (i = 0; i < count; i++, addr += sizeof (int))
- {
- errno = 0;
- ptrace (4, inferior_pid, addr, buffer[i]);
- if (errno)
- return errno;
- }
-
- return 0;
-}
-\f
-void
-initialize_low (void)
-{
-}
+++ /dev/null
-/* Low level interface to ptrace, for the remote server for GDB.
- Copyright 1986, 1987, 1993, 1994, 1995, 1999, 2000, 2001, 2002
- 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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "server.h"
-#include "<sys/wait.h>"
-#include "frame.h"
-#include "inferior.h"
-
-#include <stdio.h>
-#include <sys/param.h>
-#include <sys/dir.h>
-#include <sys/user.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sgtty.h>
-#include <fcntl.h>
-
-/***************Begin MY defs*********************/
-static char my_registers[REGISTER_BYTES];
-char *registers = my_registers;
-/***************End MY defs*********************/
-
-#include <sys/ptrace.h>
-#include <machine/reg.h>
-
-extern int sys_nerr;
-extern char **sys_errlist;
-extern int errno;
-
-/* Start an inferior process and returns its pid.
- ALLARGS is a vector of program-name and args. */
-
-int
-create_inferior (char *program, char **allargs)
-{
- int pid;
-
- pid = fork ();
- if (pid < 0)
- perror_with_name ("fork");
-
- if (pid == 0)
- {
- ptrace (PTRACE_TRACEME);
-
- execv (program, allargs);
-
- fprintf (stderr, "Cannot exec %s: %s.\n", program,
- errno < sys_nerr ? sys_errlist[errno] : "unknown error");
- fflush (stderr);
- _exit (0177);
- }
-
- return pid;
-}
-
-/* Attaching is not supported. */
-int
-myattach (int pid)
-{
- return -1;
-}
-
-/* Kill the inferior process. Make us have no inferior. */
-
-void
-kill_inferior (void)
-{
- if (inferior_pid == 0)
- return;
- ptrace (8, inferior_pid, 0, 0);
- wait (0);
-/*************inferior_died ();****VK**************/
-}
-
-/* Return nonzero if the given thread is still alive. */
-int
-mythread_alive (int pid)
-{
- return 1;
-}
-
-/* Wait for process, returns status */
-
-unsigned char
-mywait (char *status)
-{
- int pid;
- union wait w;
-
- pid = wait (&w);
- if (pid != inferior_pid)
- perror_with_name ("wait");
-
- if (WIFEXITED (w))
- {
- fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
- *status = 'W';
- return ((unsigned char) WEXITSTATUS (w));
- }
- else if (!WIFSTOPPED (w))
- {
- fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
- *status = 'X';
- return ((unsigned char) WTERMSIG (w));
- }
-
- fetch_inferior_registers (0);
-
- *status = 'T';
- return ((unsigned char) WSTOPSIG (w));
-}
-
-/* Resume execution of the inferior process.
- If STEP is nonzero, single-step it.
- If SIGNAL is nonzero, give it that signal. */
-
-void
-myresume (int step, int signal)
-{
- errno = 0;
- ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal);
- if (errno)
- perror_with_name ("ptrace");
-}
-
-/* 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 ignored)
-{
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
-
- ptrace (PTRACE_GETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_registers);
-#ifdef FP0_REGNUM
- ptrace (PTRACE_GETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_fp_registers);
-#endif
-
- memcpy (registers, &inferior_registers, 16 * 4);
-#ifdef FP0_REGNUM
- memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
- sizeof inferior_fp_registers.fps_regs);
-#endif
- *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
- *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
-#ifdef FP0_REGNUM
- memcpy
- (®isters[REGISTER_BYTE (FPC_REGNUM)],
- &inferior_fp_registers.fps_control,
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
-#endif
-}
-
-/* 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 ignored)
-{
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
-
- memcpy (&inferior_registers, registers, 16 * 4);
-#ifdef FP0_REGNUM
- memcpy (&inferior_fp_registers,
- ®isters[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.fps_regs);
-#endif
- inferior_registers.r_ps = *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)];
- inferior_registers.r_pc = *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
-
-#ifdef FP0_REGNUM
- memcpy (&inferior_fp_registers.fps_control,
- ®isters[REGISTER_BYTE (FPC_REGNUM)],
- (sizeof inferior_fp_registers
- - sizeof inferior_fp_registers.fps_regs));
-#endif
-
- ptrace (PTRACE_SETREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_registers);
-#if FP0_REGNUM
- ptrace (PTRACE_SETFPREGS, inferior_pid,
- (PTRACE_ARG3_TYPE) & inferior_fp_registers);
-#endif
-}
-
-/* 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. */
-
-/* Copy LEN bytes from inferior's memory starting at MEMADDR
- to debugger memory starting at MYADDR. */
-
-void
-read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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));
-
- /* Read all the longwords */
- for (i = 0; i < count; i++, addr += sizeof (int))
- {
- buffer[i] = ptrace (1, inferior_pid, 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
-write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
-{
- register int i;
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr = memaddr & -(CORE_ADDR) 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 (1, inferior_pid, addr, 0);
-
- if (count > 1)
- {
- buffer[count - 1]
- = ptrace (1, inferior_pid,
- 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 (4, inferior_pid, addr, buffer[i]);
- if (errno)
- return errno;
- }
-
- return 0;
-}
-\f
-void
-initialize_low (void)
-{
-}
projects / external / binutils.git / commitdiff