Boston, MA 02111-1307, USA. */
#include "defs.h"
+#include "command.h"
#include "frame.h"
+#include "gdbcore.h"
#include "inferior.h"
-#include "target.h"
-#include "gdb_string.h"
#include "regcache.h"
+#include "target.h"
+#include "gdb_assert.h"
#include "gdb_wait.h"
-
-#include "command.h"
-
-#ifdef USG
-#include <sys/types.h>
-#endif
+#include "gdb_string.h"
#include <sys/param.h>
#include "gdb_dirent.h"
#include "gdb_ptrace.h"
-#include "gdbcore.h"
#ifdef HAVE_SYS_FILE_H
#include <sys/file.h>
#endif
-#if 0
-/* Don't think this is used anymore. On the sequent (not sure whether it's
- dynix or ptx or both), it is included unconditionally by sys/user.h and
- not protected against multiple inclusion. */
-#include "gdb_stat.h"
-#endif
-
-#include "gdb_assert.h"
#if !defined (FETCH_INFERIOR_REGISTERS)
#include <sys/user.h> /* Probably need to poke the user structure */
static void udot_info (char *, int);
#endif
-#if !defined (FETCH_INFERIOR_REGISTERS)
-static void fetch_register (int);
-static void store_register (int);
-#endif
-
void _initialize_infptrace (void);
\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 (int request, int pid, PTRACE_ARG3_TYPE addr, int data)
{
- int pt_status = 0;
-
-#if 0
- int saved_errno;
-
- printf ("call_ptrace(request=%d, pid=%d, addr=0x%x, data=0x%x)",
- request, pid, addr, data);
-#endif
-#if defined(PT_SETTRC)
- /* If the parent can be told to attach to us, try to do it. */
- if (request == PT_SETTRC)
- {
- errno = 0;
-#ifndef PTRACE_TYPE_ARG5
- pt_status = ptrace (PT_SETTRC, pid, addr, data);
-#else
- /* Deal with HPUX 8.0 braindamage. We never use the
- calls which require the fifth argument. */
- pt_status = ptrace (PT_SETTRC, pid, addr, data, 0);
-#endif
- if (errno)
- perror_with_name ("ptrace");
-#if 0
- printf (" = %d\n", pt_status);
-#endif
- if (pt_status < 0)
- return pt_status;
- else
- return parent_attach_all (pid, addr, data);
- }
-#endif
-
-#if defined(PT_CONTIN1)
- /* On HPUX, PT_CONTIN1 is a form of continue that preserves pending
- signals. If it's available, use it. */
- if (request == PT_CONTINUE)
- request = PT_CONTIN1;
-#endif
-
-#if defined(PT_SINGLE1)
- /* On HPUX, PT_SINGLE1 is a form of step that preserves pending
- signals. If it's available, use it. */
- if (request == PT_STEP)
- request = PT_SINGLE1;
-#endif
-
-#if 0
- saved_errno = errno;
- errno = 0;
-#endif
-#ifndef PTRACE_TYPE_ARG5
- pt_status = ptrace (request, pid, addr, data);
-#else
- /* Deal with HPUX 8.0 braindamage. We never use the
- calls which require the fifth argument. */
- pt_status = ptrace (request, pid, addr, data, 0);
-#endif
-
-#if 0
- if (errno)
- printf (" [errno = %d]", errno);
-
- errno = saved_errno;
- printf (" = 0x%x\n", pt_status);
-#endif
- return pt_status;
+ return ptrace (request, pid, addr, data);
}
-
-#if defined (DEBUG_PTRACE) || defined (PTRACE_TYPE_ARG5)
-/* For the rest of the file, use an extra level of indirection */
-/* This lets us breakpoint usefully on call_ptrace. */
-#define ptrace call_ptrace
-#endif
-
/* Wait for a process to finish, possibly running a target-specific
hook before returning. */
+/* NOTE: cagney: 2004-09-29: Dependant on the native configuration,
+ "hppah-nat.c" may either call this or infttrace.c's implementation
+ of ptrace_wait. See "hppahpux.mh". */
+
int
ptrace_wait (ptid_t ptid, int *status)
{
int wstate;
wstate = wait (status);
- target_post_wait (pid_to_ptid (wstate), *status);
return wstate;
}
-#ifndef KILL_INFERIOR
+#ifndef DEPRECATED_KILL_INFERIOR
+/* NOTE: cagney/2004-09-12: Instead of definining this macro, code
+ should call inf_ptrace_target to get a basic ptrace target and then
+ locally update any necessary methods. See ppcnbsd-nat.c. */
+
void
kill_inferior (void)
{
The kill call causes problems under hpux10, so it's been removed;
if this causes problems we'll deal with them as they arise. */
ptrace (PT_KILL, pid, (PTRACE_TYPE_ARG3) 0, 0);
- ptrace_wait (null_ptid, &status);
+ wait (&status);
target_mourn_inferior ();
}
-#endif /* KILL_INFERIOR */
+#endif /* DEPRECATED_KILL_INFERIOR */
-#ifndef CHILD_RESUME
+#ifndef DEPRECATED_CHILD_RESUME
+/* NOTE: cagney/2004-09-12: Instead of definining this macro, code
+ should call inf_ptrace_target to get a basic ptrace target and then
+ locally update any necessary methods. See ppcnbsd-nat.c. */
/* Resume execution of the inferior process.
If STEP is nonzero, single-step it.
void
child_resume (ptid_t ptid, int step, enum target_signal signal)
{
+ int request = PT_CONTINUE;
int pid = PIDGET (ptid);
- errno = 0;
-
if (pid == -1)
/* Resume all threads. */
/* I think this only gets used in the non-threaded case, where "resume
all threads" and "resume inferior_ptid" are the same. */
pid = PIDGET (inferior_ptid);
- /* An address of (PTRACE_TYPE_ARG3)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)
{
- if (SOFTWARE_SINGLE_STEP_P ())
- internal_error (__FILE__, __LINE__, "failed internal consistency check"); /* Make sure this doesn't happen. */
- else
- ptrace (PT_STEP, pid, (PTRACE_TYPE_ARG3) 1,
- target_signal_to_host (signal));
+ /* 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. */
+
+ gdb_assert (!SOFTWARE_SINGLE_STEP_P ());
+ request = PT_STEP;
}
- else
- ptrace (PT_CONTINUE, pid, (PTRACE_TYPE_ARG3) 1,
- target_signal_to_host (signal));
- if (errno)
- {
- perror_with_name ("ptrace");
- }
+ /* An address of (PTRACE_TYPE_ARG3)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. */
+
+ errno = 0;
+ ptrace (request, pid, (PTRACE_TYPE_ARG3)1, target_signal_to_host (signal));
+ if (errno != 0)
+ perror_with_name ("ptrace");
}
-#endif /* CHILD_RESUME */
+#endif /* DEPRECATED_CHILD_RESUME */
\f
+
/* Start debugging the process whose number is PID. */
+
int
attach (int pid)
{
#ifdef PT_ATTACH
errno = 0;
ptrace (PT_ATTACH, pid, (PTRACE_TYPE_ARG3) 0, 0);
- if (errno)
+ if (errno != 0)
perror_with_name ("ptrace");
attach_flag = 1;
return pid;
#endif
}
-/* Stop debugging the process whose number is PID
- and continue it with signal number SIGNAL.
- SIGNAL = 0 means just continue it. */
+/* Stop debugging the process whose number is PID and continue it with
+ signal number SIGNAL. SIGNAL = 0 means just continue it. */
void
detach (int signal)
{
#ifdef PT_DETACH
+ int pid = PIDGET (inferior_ptid);
+
errno = 0;
- ptrace (PT_DETACH, PIDGET (inferior_ptid), (PTRACE_TYPE_ARG3) 1,
- signal);
- if (errno)
- print_sys_errmsg ("ptrace", errno);
+ ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3) 1, signal);
+ if (errno != 0)
+ perror_with_name ("ptrace");
attach_flag = 0;
#else
error ("This system does not support detaching from a process");
Returns the length copied, which is either the LEN argument or
zero. This xfer function does not do partial moves, since
- child_ops doesn't allow memory operations to cross below us in the
- target stack anyway. */
+ deprecated_child_ops doesn't allow memory operations to cross below
+ us in the target stack anyway. */
int
child_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
projects / deliverable / binutils-gdb.git / blobdiff