/* Low level Unix child interface to ptrace, for GDB when running under Unix.
- Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
+ Copyright 1988, 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
This file is part of GDB.
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-#include <stdio.h>
#include "defs.h"
-#include "param.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
#include <sys/dir.h>
#include <signal.h>
#include <sys/ioctl.h>
-#ifndef USG
+
+#ifndef NO_PTRACE_H
+#ifdef PTRACE_IN_WRONG_PLACE
+#include <ptrace.h>
+#else
#include <sys/ptrace.h>
#endif
+#endif /* NO_PTRACE_H */
#if !defined (PT_KILL)
#define PT_KILL 8
#endif
#include "gdbcore.h"
+#ifndef NO_SYS_FILE
#include <sys/file.h>
+#endif
#include <sys/stat.h>
+#if defined (FIVE_ARG_PTRACE
+/* Deal with HPUX 8.0 braindamage. */
+#define ptrace(a,b,c,d) ptrace(a,b,c,d,0)
+#endif
+
#if !defined (FETCH_INFERIOR_REGISTERS)
#include <sys/user.h> /* Probably need to poke the user structure */
#if defined (KERNEL_U_ADDR_BSD)
#include <a.out.h> /* For struct nlist */
#endif /* KERNEL_U_ADDR_BSD. */
#endif /* !FETCH_INFERIOR_REGISTERS */
+
\f
/* This function simply calls ptrace with the given arguments.
It exists so that all calls to ptrace are isolated in this
machine-dependent file. */
int
call_ptrace (request, pid, addr, data)
- int request, pid, *addr, data;
+ int request, pid;
+ PTRACE_ARG3_TYPE addr;
+ int data;
{
return ptrace (request, pid, addr, data);
}
#define ptrace call_ptrace
#endif
-/* This is used when GDB is exiting. It gives less chance of error.*/
-
void
-kill_inferior_fast ()
+kill_inferior ()
{
if (inferior_pid == 0)
return;
- ptrace (PT_KILL, inferior_pid, 0, 0);
+ /* ptrace PT_KILL only works if process is stopped!!! So stop it with
+ a real signal first, if we can. */
+ kill (inferior_pid, SIGKILL);
+ ptrace (PT_KILL, inferior_pid, (PTRACE_ARG3_TYPE) 0, 0);
wait ((int *)0);
-}
-
-void
-kill_inferior (args, from_tty)
- char *args;
- int from_tty;
-{
- kill_inferior_fast ();
target_mourn_inferior ();
}
{
errno = 0;
- /* An address of (int *)1 tells ptrace to continue from where it was.
- (If GDB wanted it to start some other way, we have already written
- a new PC value to the child.) */
+ /* An address of (PTRACE_ARG3_TYPE)1 tells ptrace to continue from where
+ it was. (If GDB wanted it to start some other way, we have already
+ written a new PC value to the child.)
+
+ If this system does not support PT_STEP, a higher level function will
+ have called single_step() to transmute the step request into a
+ continue request (by setting breakpoints on all possible successor
+ instructions), so we don't have to worry about that here. */
if (step)
- ptrace (PT_STEP, inferior_pid, (int *)1, signal);
+ ptrace (PT_STEP, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
else
- ptrace (PT_CONTINUE, inferior_pid, (int *)1, signal);
+ ptrace (PT_CONTINUE, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
if (errno)
perror_with_name ("ptrace");
}
\f
#ifdef ATTACH_DETACH
-/* Nonzero if we are debugging an attached process rather than
- an inferior. */
-extern int attach_flag;
-
/* Start debugging the process whose number is PID. */
int
attach (pid)
int pid;
{
errno = 0;
- ptrace (PT_ATTACH, pid, 0, 0);
+ ptrace (PT_ATTACH, pid, (PTRACE_ARG3_TYPE) 0, 0);
if (errno)
perror_with_name ("ptrace");
attach_flag = 1;
int signal;
{
errno = 0;
- ptrace (PT_DETACH, inferior_pid, 1, signal);
+ ptrace (PT_DETACH, inferior_pid, (PTRACE_ARG3_TYPE) 1, signal);
if (errno)
perror_with_name ("ptrace");
attach_flag = 0;
#if defined (KERNEL_U_ADDR_BSD)
/* Get kernel_u_addr using BSD-style nlist(). */
CORE_ADDR kernel_u_addr;
-#include <a.out.h> /* For struct nlist */
void
_initialize_kernel_u_addr ()
#if !defined (U_REGS_OFFSET)
#define U_REGS_OFFSET \
ptrace (PT_READ_U, inferior_pid, \
- (int *)(offsetof (struct user, u_ar0)), 0) - KERNEL_U_ADDR
+ (PTRACE_ARG3_TYPE) (offsetof (struct user, u_ar0)), 0) \
+ - KERNEL_U_ADDR
#endif
/* Registers we shouldn't try to fetch. */
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
{
errno = 0;
- *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid, (int *)regaddr, 0);
+ *(int *) &buf[i] = ptrace (PT_READ_U, inferior_pid,
+ (PTRACE_ARG3_TYPE) regaddr, 0);
regaddr += sizeof (int);
if (errno != 0)
{
If REGNO is -1, do this for all registers.
Otherwise, REGNO specifies which register (so we can save time). */
-int
+void
store_inferior_registers (regno)
int regno;
{
char buf[80];
extern char registers[];
register int i;
- int result = 0;
unsigned int offset = U_REGS_OFFSET;
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
{
errno = 0;
- ptrace (PT_WRITE_U, inferior_pid, (int *)regaddr,
+ ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) ®isters[REGISTER_BYTE (regno) + i]);
if (errno != 0)
{
sprintf (buf, "writing register number %d(%d)", regno, i);
perror_with_name (buf);
- result = -1;
}
regaddr += sizeof(int);
}
for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
{
errno = 0;
- ptrace (PT_WRITE_U, inferior_pid, (int *)regaddr,
+ ptrace (PT_WRITE_U, inferior_pid, (PTRACE_ARG3_TYPE) regaddr,
*(int *) ®isters[REGISTER_BYTE (regno) + i]);
if (errno != 0)
{
sprintf (buf, "writing register number %d(%d)", regno, i);
perror_with_name (buf);
- result = -1;
}
regaddr += sizeof(int);
}
}
}
- return result;
}
#endif /* !defined (FETCH_INFERIOR_REGISTERS). */
\f
char *myaddr;
int len;
int write;
- struct target_ops target; /* ignored */
+ struct target_ops *target; /* ignored */
{
register int i;
/* Round starting address down to longword boundary. */
if (addr != memaddr || len < (int)sizeof (int)) {
/* Need part of initial word -- fetch it. */
- buffer[0] = ptrace (PT_READ_I, inferior_pid, (int *)addr, 0);
+ buffer[0] = ptrace (PT_READ_I, inferior_pid, (PTRACE_ARG3_TYPE) addr,
+ 0);
}
if (count > 1) /* FIXME, avoid if even boundary */
{
buffer[count - 1]
= ptrace (PT_READ_I, inferior_pid,
- (int *)(addr + (count - 1) * sizeof (int)), 0);
+ (PTRACE_ARG3_TYPE) (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);
+ 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, (int *)addr, buffer[i]);
+ ptrace (PT_WRITE_D, inferior_pid, (PTRACE_ARG3_TYPE) addr,
+ buffer[i]);
if (errno)
{
/* Using the appropriate one (I or D) is necessary for
Gould NP1, at least. */
errno = 0;
- ptrace (PT_WRITE_I, inferior_pid, (int *)addr, buffer[i]);
+ ptrace (PT_WRITE_I, inferior_pid, (PTRACE_ARG3_TYPE) addr,
+ buffer[i]);
}
if (errno)
return 0;
for (i = 0; i < count; i++, addr += sizeof (int))
{
errno = 0;
- buffer[i] = ptrace (PT_READ_I, inferior_pid, (int *)addr, 0);
+ buffer[i] = ptrace (PT_READ_I, inferior_pid,
+ (PTRACE_ARG3_TYPE) addr, 0);
if (errno)
return 0;
QUIT;
}
/* Copy appropriate bytes out of the buffer. */
- bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
+ memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
}
return len;
}
projects / binutils.git / blobdiff