+2007-05-06 Ulrich Weigand <uweigand@de.ibm.com>
+
+ * inftarg.c, infptrace.c: Remove files.
+ * Makefile.in (ALLDEPFILES): Remove inftarg.c and infptrace.c
+ (inftarg.o, infptrace.o): Remove rules.
+ * gdbcore.h (register_addr): Remove prototype.
+ * inferior.h (kill_inferior, store_inferior_registers,
+ fetch_inferior_registers, attach, detach, ptrace_wait, child_resume,
+ call_ptrace, pre_fork_inferior): Remove prototypes.
+ * target.h (child_xfer_memory, child_pid_to_exec_file,
+ child_core_file_to_sym_file, child_post_attach,
+ child_post_startup_inferior, child_acknowledge_created_inferior,
+ child_insert_fork_catchpoint, child_remove_fork_catchpoint,
+ child_insert_vfork_catchpoint, child_remove_vfork_catchpoint,
+ child_insert_exec_catchpoint, child_remove_exec_catchpoint,
+ child_follow_fork, child_reported_exec_events_per_exec_call,
+ child_has_exited, child_thread_alive): Remove prototypes.
+
2007-05-06 Ulrich Weigand <uweigand@de.ibm.com>
* sparc-nat.h (sparc_fetch_inferior_registers): Add prototype.
i386gnu-nat.c i386gnu-tdep.c \
ia64-linux-nat.c ia64-linux-tdep.c ia64-tdep.c \
inf-ptrace.c inf-ttrace.c \
- infptrace.c inftarg.c irix5-nat.c \
+ irix5-nat.c \
libunwind-frame.c \
linux-fork.c \
m68hc11-tdep.c \
inf-ptrace.o: inf-ptrace.c $(defs_h) $(command_h) $(inferior_h) $(inflow_h) \
$(gdbcore_h) $(regcache_h) $(gdb_stdint_h) $(gdb_assert_h) \
$(gdb_string_h) $(gdb_ptrace_h) $(gdb_wait_h) $(inf_child_h)
-infptrace.o: infptrace.c $(defs_h) $(command_h) $(frame_h) $(gdbcore_h) \
- $(inferior_h) $(regcache_h) $(target_h) $(gdb_assert_h) \
- $(gdb_wait_h) $(gdb_string_h) $(gdb_dirent_h) $(gdb_ptrace_h)
infrun.o: infrun.c $(defs_h) $(gdb_string_h) $(symtab_h) $(frame_h) \
$(inferior_h) $(exceptions_h) $(breakpoint_h) $(gdb_wait_h) \
$(gdbcore_h) $(gdbcmd_h) $(cli_script_h) $(target_h) $(gdbthread_h) \
$(annotate_h) $(symfile_h) $(top_h) $(inf_loop_h) $(regcache_h) \
$(value_h) $(observer_h) $(language_h) $(solib_h) $(gdb_assert_h) \
$(mi_common_h) $(main_h)
-inftarg.o: inftarg.c $(defs_h) $(frame_h) $(inferior_h) $(target_h) \
- $(gdbcore_h) $(command_h) $(gdb_stat_h) $(gdb_wait_h) \
- $(inflow_h)
inf-ttrace.o: inf-ttrace.c $(defs_h) $(command_h) $(gdbcore_h) \
$(gdbthread_h) $(inferior_h) $(target_h) \
$(gdb_assert_h) $(gdb_string_h) $(inf_child_h) $(inf_ttrace_h)
extern void validate_files (void);
-extern CORE_ADDR register_addr (int regno, CORE_ADDR blockend);
-
/* The target vector for core files. */
extern struct target_ops core_ops;
over such function. */
extern int step_stop_if_no_debug;
-extern void kill_inferior (void);
-
extern void generic_mourn_inferior (void);
extern void terminal_save_ours (void);
struct frame_info *frame,
int regnum, int all);
-extern void store_inferior_registers (struct regcache *, int);
-
-extern void fetch_inferior_registers (struct regcache *, int);
-
extern void child_terminal_info (char *, int);
extern void term_info (char *, int);
extern void terminal_init_inferior_with_pgrp (int pgrp);
-/* From infptrace.c or infttrace.c */
-
-extern int attach (int);
-
-extern void detach (int);
-
-/* PTRACE method of waiting for inferior process. */
-int ptrace_wait (ptid_t, int *);
-
-extern void child_resume (ptid_t, int, enum target_signal);
-
-extern int call_ptrace (int, int, PTRACE_TYPE_ARG3, int);
-
-extern void pre_fork_inferior (void);
-
/* From procfs.c */
extern int proc_iterate_over_mappings (int (*)(int, CORE_ADDR));
+++ /dev/null
-/* Low level Unix child interface to ptrace, for GDB when running under Unix.
- Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
- 1999, 2000, 2001, 2002, 2004, 2007 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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
-
-#include "defs.h"
-#include "command.h"
-#include "frame.h"
-#include "gdbcore.h"
-#include "inferior.h"
-#include "regcache.h"
-#include "target.h"
-
-#include "gdb_assert.h"
-#include "gdb_wait.h"
-#include "gdb_string.h"
-
-#include <sys/param.h>
-#include "gdb_dirent.h"
-#include <signal.h>
-#include <sys/ioctl.h>
-
-#include "gdb_ptrace.h"
-
-#ifdef HAVE_SYS_FILE_H
-#include <sys/file.h>
-#endif
-
-#if !defined (FETCH_INFERIOR_REGISTERS)
-#include <sys/user.h> /* Probably need to poke the user structure */
-#endif /* !FETCH_INFERIOR_REGISTERS */
-
-#if !defined (CHILD_XFER_MEMORY)
-static void udot_info (char *, int);
-#endif
-
-void _initialize_infptrace (void);
-\f
-
-int
-call_ptrace (int request, int pid, PTRACE_TYPE_ARG3 addr, int data)
-{
- return ptrace (request, pid, addr, data);
-}
-
-/* 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);
- return wstate;
-}
-
-#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)
-{
- int status;
- int pid = PIDGET (inferior_ptid);
-
- if (pid == 0)
- return;
-
- /* This once used to call "kill" to kill the inferior just in case
- the inferior was still running. As others have noted in the past
- (kingdon) there shouldn't be any way to get here if the inferior
- is still running -- else there's a major problem elsewere in gdb
- and it needs to be fixed.
-
- 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);
- wait (&status);
- target_mourn_inferior ();
-}
-#endif /* DEPRECATED_KILL_INFERIOR */
-
-#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.
- If SIGNAL is nonzero, give it that signal. */
-
-void
-child_resume (ptid_t ptid, int step, enum target_signal signal)
-{
- int request = PT_CONTINUE;
- int pid = PIDGET (ptid);
-
- 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);
-
- if (step)
- {
- /* 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;
- }
-
- /* 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 /* 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 != 0)
- perror_with_name (("ptrace"));
- attach_flag = 1;
- return pid;
-#else
- error (_("This system does not support attaching to a process"));
-#endif
-}
-
-/* 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, 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"));
-#endif
-}
-\f
-
-#ifndef FETCH_INFERIOR_REGISTERS
-
-/* U_REGS_OFFSET is the offset of the registers within the u area. */
-#ifndef U_REGS_OFFSET
-
-#ifndef offsetof
-#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
-#endif
-
-#define U_REGS_OFFSET \
- ptrace (PT_READ_U, PIDGET (inferior_ptid), \
- (PTRACE_TYPE_ARG3) (offsetof (struct user, u_ar0)), 0) \
- - KERNEL_U_ADDR
-#endif
-
-/* Fetch register REGNUM from the inferior. */
-
-static void
-fetch_register (struct regcache *regcache, int regnum)
-{
- CORE_ADDR addr;
- size_t size;
- PTRACE_TYPE_RET *buf;
- int tid, i;
-
- if (CANNOT_FETCH_REGISTER (regnum))
- {
- regcache_raw_supply (regcache, regnum, NULL);
- return;
- }
-
- /* GNU/Linux LWP ID's are process ID's. */
- tid = TIDGET (inferior_ptid);
- if (tid == 0)
- tid = PIDGET (inferior_ptid); /* Not a threaded program. */
-
- /* This isn't really an address. But ptrace thinks of it as one. */
- addr = register_addr (regnum, U_REGS_OFFSET);
- size = register_size (current_gdbarch, regnum);
-
- gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
- buf = alloca (size);
-
- /* Read the register contents from the inferior a chuck at the time. */
- for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
- {
- errno = 0;
- buf[i] = ptrace (PT_READ_U, tid, (PTRACE_TYPE_ARG3) addr, 0);
- if (errno != 0)
- error (_("Couldn't read register %s (#%d): %s."), REGISTER_NAME (regnum),
- regnum, safe_strerror (errno));
-
- addr += sizeof (PTRACE_TYPE_RET);
- }
- regcache_raw_supply (regcache, regnum, buf);
-}
-
-/* Fetch register REGNUM from the inferior. If REGNUM is -1, do this
- for all registers. */
-
-void
-fetch_inferior_registers (struct regcache *regcache, int regnum)
-{
- if (regnum == -1)
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- fetch_register (regcache, regnum);
- else
- fetch_register (regcache, regnum);
-}
-
-/* Store register REGNUM into the inferior. */
-
-static void
-store_register (const struct regcache *regcache, int regnum)
-{
- CORE_ADDR addr;
- size_t size;
- PTRACE_TYPE_RET *buf;
- int tid, i;
-
- if (CANNOT_STORE_REGISTER (regnum))
- return;
-
- /* GNU/Linux LWP ID's are process ID's. */
- tid = TIDGET (inferior_ptid);
- if (tid == 0)
- tid = PIDGET (inferior_ptid); /* Not a threaded program. */
-
- /* This isn't really an address. But ptrace thinks of it as one. */
- addr = register_addr (regnum, U_REGS_OFFSET);
- size = register_size (current_gdbarch, regnum);
-
- gdb_assert ((size % sizeof (PTRACE_TYPE_RET)) == 0);
- buf = alloca (size);
-
- /* Write the register contents into the inferior a chunk at the time. */
- regcache_raw_collect (regcache, regnum, buf);
- for (i = 0; i < size / sizeof (PTRACE_TYPE_RET); i++)
- {
- errno = 0;
- ptrace (PT_WRITE_U, tid, (PTRACE_TYPE_ARG3) addr, buf[i]);
- if (errno != 0)
- error (_("Couldn't write register %s (#%d): %s."),
- REGISTER_NAME (regnum), regnum, safe_strerror (errno));
-
- addr += sizeof (PTRACE_TYPE_RET);
- }
-}
-
-/* Store register REGNUM back into the inferior. If REGNUM is -1, do
- this for all registers (including the floating point registers). */
-
-void
-store_inferior_registers (struct regcache *regcache, int regnum)
-{
- if (regnum == -1)
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- store_register (regcache, regnum);
- else
- store_register (regcache, regnum);
-}
-
-#endif /* not FETCH_INFERIOR_REGISTERS. */
-\f
-
-/* Set an upper limit on alloca. */
-#ifndef GDB_MAX_ALLOCA
-#define GDB_MAX_ALLOCA 0x1000
-#endif
-
-#if !defined (CHILD_XFER_MEMORY)
-/* 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 to or from inferior's memory starting at MEMADDR to
- debugger memory starting at MYADDR. Copy to inferior if WRITE is
- nonzero. TARGET is ignored.
-
- Returns the length copied, which is either the LEN argument or
- zero. This xfer function does not do partial moves, since
- deprecated_child_ops doesn't allow memory operations to cross below
- us in the target stack anyway. */
-
-int
-child_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write,
- struct mem_attrib *attrib, struct target_ops *target)
-{
- int i;
- /* Round starting address down to longword boundary. */
- CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (PTRACE_TYPE_RET);
- /* Round ending address up; get number of longwords that makes. */
- int count = ((((memaddr + len) - addr) + sizeof (PTRACE_TYPE_RET) - 1)
- / sizeof (PTRACE_TYPE_RET));
- int alloc = count * sizeof (PTRACE_TYPE_RET);
- PTRACE_TYPE_RET *buffer;
- struct cleanup *old_chain = NULL;
-
-#ifdef PT_IO
- /* OpenBSD 3.1, NetBSD 1.6 and FreeBSD 5.0 have a new PT_IO request
- that promises to be much more efficient in reading and writing
- data in the traced process's address space. */
-
- {
- struct ptrace_io_desc piod;
-
- /* NOTE: We assume that there are no distinct address spaces for
- instruction and data. */
- piod.piod_op = write ? PIOD_WRITE_D : PIOD_READ_D;
- piod.piod_offs = (void *) memaddr;
- piod.piod_addr = myaddr;
- piod.piod_len = len;
-
- if (ptrace (PT_IO, PIDGET (inferior_ptid), (caddr_t) &piod, 0) == -1)
- {
- /* If the PT_IO request is somehow not supported, fallback on
- using PT_WRITE_D/PT_READ_D. Otherwise we will return zero
- to indicate failure. */
- if (errno != EINVAL)
- return 0;
- }
- else
- {
- /* Return the actual number of bytes read or written. */
- return piod.piod_len;
- }
- }
-#endif
-
- /* Allocate buffer of that many longwords. */
- if (len < GDB_MAX_ALLOCA)
- {
- buffer = (PTRACE_TYPE_RET *) alloca (alloc);
- }
- else
- {
- buffer = (PTRACE_TYPE_RET *) xmalloc (alloc);
- old_chain = make_cleanup (xfree, buffer);
- }
-
- if (write)
- {
- /* Fill start and end extra bytes of buffer with existing memory
- data. */
- if (addr != memaddr || len < (int) sizeof (PTRACE_TYPE_RET))
- {
- /* Need part of initial word -- fetch it. */
- buffer[0] = ptrace (PT_READ_I, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) addr, 0);
- }
-
- if (count > 1) /* FIXME, avoid if even boundary. */
- {
- buffer[count - 1] =
- ptrace (PT_READ_I, PIDGET (inferior_ptid),
- ((PTRACE_TYPE_ARG3)
- (addr + (count - 1) * sizeof (PTRACE_TYPE_RET))), 0);
- }
-
- /* Copy data to be written over corresponding part of buffer. */
- memcpy ((char *) buffer + (memaddr & (sizeof (PTRACE_TYPE_RET) - 1)),
- myaddr, len);
-
- /* Write the entire buffer. */
- for (i = 0; i < count; i++, addr += sizeof (PTRACE_TYPE_RET))
- {
- errno = 0;
- ptrace (PT_WRITE_D, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) 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, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) addr, buffer[i]);
- }
- if (errno)
- return 0;
- }
- }
- else
- {
- /* Read all the longwords. */
- for (i = 0; i < count; i++, addr += sizeof (PTRACE_TYPE_RET))
- {
- errno = 0;
- buffer[i] = ptrace (PT_READ_I, PIDGET (inferior_ptid),
- (PTRACE_TYPE_ARG3) addr, 0);
- if (errno)
- return 0;
- QUIT;
- }
-
- /* Copy appropriate bytes out of the buffer. */
- memcpy (myaddr,
- (char *) buffer + (memaddr & (sizeof (PTRACE_TYPE_RET) - 1)),
- len);
- }
-
- if (old_chain != NULL)
- do_cleanups (old_chain);
- return len;
-}
-\f
-
-static void
-udot_info (char *dummy1, int dummy2)
-{
-#if defined (KERNEL_U_SIZE)
- long udot_off; /* Offset into user struct */
- int udot_val; /* Value from user struct at udot_off */
- char mess[128]; /* For messages */
-#endif
-
- if (!target_has_execution)
- {
- error (_("The program is not being run."));
- }
-
-#if !defined (KERNEL_U_SIZE)
-
- /* Adding support for this command is easy. Typically you just add a
- routine, called "kernel_u_size" that returns the size of the user
- struct, to the appropriate *-nat.c file and then add to the native
- config file "#define KERNEL_U_SIZE kernel_u_size()" */
- error (_("Don't know how large ``struct user'' is in this version of gdb."));
-
-#else
-
- for (udot_off = 0; udot_off < KERNEL_U_SIZE; udot_off += sizeof (udot_val))
- {
- if ((udot_off % 24) == 0)
- {
- if (udot_off > 0)
- {
- printf_filtered ("\n");
- }
- printf_filtered ("%s:", paddr (udot_off));
- }
- udot_val = ptrace (PT_READ_U, PIDGET (inferior_ptid), (PTRACE_TYPE_ARG3) udot_off, 0);
- if (errno != 0)
- {
- sprintf (mess, "\nreading user struct at offset 0x%s",
- paddr_nz (udot_off));
- perror_with_name (mess);
- }
- /* Avoid using nonportable (?) "*" in print specs */
- printf_filtered (sizeof (int) == 4 ? " 0x%08x" : " 0x%16x", udot_val);
- }
- printf_filtered ("\n");
-
-#endif
-}
-#endif /* !defined (CHILD_XFER_MEMORY). */
-\f
-
-void
-_initialize_infptrace (void)
-{
-#if !defined (CHILD_XFER_MEMORY)
- add_info ("udot", udot_info,
- _("Print contents of kernel ``struct user'' for current child."));
-#endif
-}
+++ /dev/null
-/* Target-vector operations for controlling Unix child processes, for GDB.
-
- Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
- 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
-
- Contributed by Cygnus Support.
-
- ## Contains temporary hacks..
-
- 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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
-
-#include "defs.h"
-#include "frame.h" /* required by inferior.h */
-#include "inferior.h"
-#include "target.h"
-#include "gdbcore.h"
-#include "command.h"
-#include "gdb_stat.h"
-#include <signal.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include "gdb_wait.h"
-#include "inflow.h"
-
-extern struct symtab_and_line *child_enable_exception_callback (enum
- exception_event_kind,
- int);
-
-extern struct exception_event_record
- *child_get_current_exception_event (void);
-
-extern void _initialize_inftarg (void);
-
-static void child_prepare_to_store (struct regcache *);
-
-#ifndef CHILD_WAIT
-static ptid_t child_wait (ptid_t, struct target_waitstatus *);
-#endif /* CHILD_WAIT */
-
-static void child_open (char *, int);
-
-static void child_files_info (struct target_ops *);
-
-static void child_detach (char *, int);
-
-static void child_attach (char *, int);
-
-#if !defined(CHILD_POST_ATTACH)
-extern void child_post_attach (int);
-#endif
-
-static void ptrace_me (void);
-
-static void ptrace_him (int);
-
-static void child_create_inferior (char *, char *, char **, int);
-
-static void child_mourn_inferior (void);
-
-static int child_can_run (void);
-
-static void child_stop (void);
-
-#ifndef CHILD_THREAD_ALIVE
-int child_thread_alive (ptid_t);
-#endif
-
-static void init_child_ops (void);
-
-extern char **environ;
-
-int child_suppress_run = 0; /* Non-zero if inftarg should pretend not to
- be a runnable target. Used by targets
- that can sit atop inftarg, such as HPUX
- thread support. */
-
-#ifndef CHILD_WAIT
-
-/* Wait for child to do something. Return pid of child, or -1 in case
- of error; store status through argument pointer OURSTATUS. */
-
-static ptid_t
-child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
-{
- int save_errno;
- int status;
- char *execd_pathname = NULL;
- int exit_status;
- int syscall_id;
- enum target_waitkind kind;
- int pid;
-
- do
- {
- set_sigint_trap (); /* Causes SIGINT to be passed on to the
- attached process. */
- set_sigio_trap ();
-
- pid = wait (&status);
-
- save_errno = errno;
-
- clear_sigio_trap ();
-
- clear_sigint_trap ();
-
- if (pid == -1)
- {
- if (save_errno == EINTR)
- continue;
-
- fprintf_unfiltered (gdb_stderr, "Child process unexpectedly missing: %s.\n",
- safe_strerror (save_errno));
-
- /* Claim it exited with unknown signal. */
- ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
- ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
- return pid_to_ptid (-1);
- }
-
- /* Did it exit?
- */
- if (target_has_exited (pid, status, &exit_status))
- {
- /* ??rehrauer: For now, ignore this. */
- continue;
- }
-
- if (!target_thread_alive (pid_to_ptid (pid)))
- {
- ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
- return pid_to_ptid (pid);
- }
- } while (pid != PIDGET (inferior_ptid)); /* Some other child died or stopped */
-
- store_waitstatus (ourstatus, status);
- return pid_to_ptid (pid);
-}
-#endif /* CHILD_WAIT */
-
-#ifndef CHILD_THREAD_ALIVE
-
-/* Check to see if the given thread is alive.
-
- FIXME: Is kill() ever the right way to do this? I doubt it, but
- for now we're going to try and be compatable with the old thread
- code. */
-int
-child_thread_alive (ptid_t ptid)
-{
- pid_t pid = PIDGET (ptid);
-
- return (kill (pid, 0) != -1);
-}
-
-#endif
-
-/* Attach to process PID, then initialize for debugging it. */
-
-static void
-child_attach (char *args, int from_tty)
-{
- char *exec_file;
- int pid;
- char *dummy;
-
- if (!args)
- error_no_arg (_("process-id to attach"));
-
- dummy = args;
- pid = strtol (args, &dummy, 0);
- /* Some targets don't set errno on errors, grrr! */
- if ((pid == 0) && (args == dummy))
- error (_("Illegal process-id: %s."), args);
-
- if (pid == getpid ()) /* Trying to masturbate? */
- error (_("I refuse to debug myself!"));
-
- if (from_tty)
- {
- exec_file = (char *) get_exec_file (0);
-
- if (exec_file)
- printf_unfiltered (_("Attaching to program: %s, %s\n"), exec_file,
- target_pid_to_str (pid_to_ptid (pid)));
- else
- printf_unfiltered (_("Attaching to %s\n"),
- target_pid_to_str (pid_to_ptid (pid)));
-
- gdb_flush (gdb_stdout);
- }
-
- attach (pid);
-
- inferior_ptid = pid_to_ptid (pid);
- push_target (&deprecated_child_ops);
-}
-
-#if !defined(CHILD_POST_ATTACH)
-void
-child_post_attach (int pid)
-{
- /* This version of Unix doesn't require a meaningful "post attach"
- operation by a debugger. */
-}
-#endif
-
-/* Take a program previously attached to and detaches it.
- The program resumes execution and will no longer stop
- on signals, etc. We'd better not have left any breakpoints
- in the program or it'll die when it hits one. For this
- to work, it may be necessary for the process to have been
- previously attached. It *might* work if the program was
- started via the normal ptrace (PTRACE_TRACEME). */
-
-static void
-child_detach (char *args, int from_tty)
-{
- int siggnal = 0;
- int pid = PIDGET (inferior_ptid);
-
- if (from_tty)
- {
- char *exec_file = get_exec_file (0);
- if (exec_file == 0)
- exec_file = "";
- printf_unfiltered (_("Detaching from program: %s, %s\n"), exec_file,
- target_pid_to_str (pid_to_ptid (pid)));
- gdb_flush (gdb_stdout);
- }
- if (args)
- siggnal = atoi (args);
-
- detach (siggnal);
-
- inferior_ptid = null_ptid;
- unpush_target (&deprecated_child_ops);
-}
-
-/* Get ready to modify the registers array. On machines which store
- individual registers, this doesn't need to do anything. On machines
- which store all the registers in one fell swoop, this makes sure
- that registers contains all the registers from the program being
- debugged. */
-
-static void
-child_prepare_to_store (struct regcache *regcache)
-{
-}
-
-/* Print status information about what we're accessing. */
-
-static void
-child_files_info (struct target_ops *ignore)
-{
- printf_unfiltered (_("\tUsing the running image of %s %s.\n"),
- attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid));
-}
-
-static void
-child_open (char *arg, int from_tty)
-{
- error (_("Use the \"run\" command to start a Unix child process."));
-}
-
-/* Stub function which causes the inferior that runs it, to be ptrace-able
- by its parent process. */
-
-static void
-ptrace_me (void)
-{
- /* "Trace me, Dr. Memory!" */
- call_ptrace (0, 0, (PTRACE_TYPE_ARG3) 0, 0);
-}
-
-/* Stub function which causes the GDB that runs it, to start ptrace-ing
- the child process. */
-
-static void
-ptrace_him (int pid)
-{
- push_target (&deprecated_child_ops);
-
- /* On some targets, there must be some explicit synchronization
- between the parent and child processes after the debugger
- forks, and before the child execs the debuggee program. This
- call basically gives permission for the child to exec.
- */
-
- target_acknowledge_created_inferior (pid);
-
- /* START_INFERIOR_TRAPS_EXPECTED is defined in inferior.h,
- * and will be 1 or 2 depending on whether we're starting
- * without or with a shell.
- */
- startup_inferior (START_INFERIOR_TRAPS_EXPECTED);
-
- /* On some targets, there must be some explicit actions taken after
- the inferior has been started up.
- */
- target_post_startup_inferior (pid_to_ptid (pid));
-}
-
-/* Start an inferior Unix child process and sets inferior_ptid to its pid.
- EXEC_FILE is the file to run.
- ALLARGS is a string containing the arguments to the program.
- ENV is the environment vector to pass. Errors reported with error(). */
-
-static void
-child_create_inferior (char *exec_file, char *allargs, char **env,
- int from_tty)
-{
- fork_inferior (exec_file, allargs, env, ptrace_me, ptrace_him, NULL, NULL);
-}
-
-#if !defined(CHILD_POST_STARTUP_INFERIOR)
-void
-child_post_startup_inferior (ptid_t ptid)
-{
- /* This version of Unix doesn't require a meaningful "post startup inferior"
- operation by a debugger.
- */
-}
-#endif
-
-#if !defined(CHILD_ACKNOWLEDGE_CREATED_INFERIOR)
-void
-child_acknowledge_created_inferior (int pid)
-{
- /* This version of Unix doesn't require a meaningful "acknowledge created inferior"
- operation by a debugger.
- */
-}
-#endif
-
-
-#if !defined(CHILD_INSERT_FORK_CATCHPOINT)
-void
-child_insert_fork_catchpoint (int pid)
-{
- /* This version of Unix doesn't support notification of fork
- events. */
-}
-#endif
-
-#if !defined(CHILD_REMOVE_FORK_CATCHPOINT)
-int
-child_remove_fork_catchpoint (int pid)
-{
- /* This version of Unix doesn't support notification of fork events. */
- return 0;
-}
-#endif
-
-#if !defined(CHILD_INSERT_VFORK_CATCHPOINT)
-void
-child_insert_vfork_catchpoint (int pid)
-{
- /* This version of Unix doesn't support notification of vfork
- events. */
-}
-#endif
-
-#if !defined(CHILD_REMOVE_VFORK_CATCHPOINT)
-int
-child_remove_vfork_catchpoint (int pid)
-{
- /* This version of Unix doesn't support notification of vfork events. */
- return 0;
-}
-#endif
-
-#if !defined(CHILD_FOLLOW_FORK)
-int
-child_follow_fork (struct target_ops *ops, int follow_child)
-{
- /* This version of Unix doesn't support following fork or vfork events. */
- return 0;
-}
-#endif
-
-#if !defined(CHILD_INSERT_EXEC_CATCHPOINT)
-void
-child_insert_exec_catchpoint (int pid)
-{
- /* This version of Unix doesn't support notification of exec
- events. */
-}
-#endif
-
-#if !defined(CHILD_REMOVE_EXEC_CATCHPOINT)
-int
-child_remove_exec_catchpoint (int pid)
-{
- /* This version of Unix doesn't support notification of exec events. */
- return 0;
-}
-#endif
-
-#if !defined(CHILD_REPORTED_EXEC_EVENTS_PER_EXEC_CALL)
-int
-child_reported_exec_events_per_exec_call (void)
-{
- /* This version of Unix doesn't support notification of exec events.
- */
- return 1;
-}
-#endif
-
-#if !defined(CHILD_HAS_EXITED)
-int
-child_has_exited (int pid, int wait_status, int *exit_status)
-{
- if (WIFEXITED (wait_status))
- {
- *exit_status = WEXITSTATUS (wait_status);
- return 1;
- }
-
- if (WIFSIGNALED (wait_status))
- {
- *exit_status = 0; /* ?? Don't know what else to say here. */
- return 1;
- }
-
- /* ?? Do we really need to consult the event state, too? Assume the
- wait_state alone suffices.
- */
- return 0;
-}
-#endif
-
-
-static void
-child_mourn_inferior (void)
-{
- unpush_target (&deprecated_child_ops);
- generic_mourn_inferior ();
-}
-
-static int
-child_can_run (void)
-{
- /* This variable is controlled by modules that sit atop inftarg that may layer
- their own process structure atop that provided here. hpux-thread.c does
- this because of the Hpux user-mode level thread model. */
-
- return !child_suppress_run;
-}
-
-/* Send a SIGINT to the process group. This acts just like the user typed a
- ^C on the controlling terminal.
-
- XXX - This may not be correct for all systems. Some may want to use
- killpg() instead of kill (-pgrp). */
-
-static void
-child_stop (void)
-{
- kill (-inferior_process_group, SIGINT);
-}
-
-#if !defined(CHILD_ENABLE_EXCEPTION_CALLBACK)
-struct symtab_and_line *
-child_enable_exception_callback (enum exception_event_kind kind, int enable)
-{
- return (struct symtab_and_line *) NULL;
-}
-#endif
-
-#if !defined(CHILD_GET_CURRENT_EXCEPTION_EVENT)
-struct exception_event_record *
-child_get_current_exception_event (void)
-{
- return (struct exception_event_record *) NULL;
-}
-#endif
-
-
-#if !defined(CHILD_PID_TO_EXEC_FILE)
-char *
-child_pid_to_exec_file (int pid)
-{
- /* This version of Unix doesn't support translation of a process ID
- to the filename of the executable file.
- */
- return NULL;
-}
-#endif
-
-char *
-child_core_file_to_sym_file (char *core)
-{
- /* The target stratum for a running executable need not support
- this operation.
- */
- return NULL;
-}
-
-/* Perform a partial transfer to/from the specified object. For
- memory transfers, fall back to the old memory xfer functions. */
-
-static LONGEST
-child_xfer_partial (struct target_ops *ops, enum target_object object,
- const char *annex, gdb_byte *readbuf,
- const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
-{
- switch (object)
- {
- case TARGET_OBJECT_MEMORY:
- if (readbuf)
- return child_xfer_memory (offset, readbuf, len, 0/*write*/,
- NULL, ops);
- if (writebuf)
- return child_xfer_memory (offset, (void *) writebuf, len, 1/*write*/,
- NULL, ops);
- return -1;
-
- case TARGET_OBJECT_UNWIND_TABLE:
-#ifndef NATIVE_XFER_UNWIND_TABLE
-#define NATIVE_XFER_UNWIND_TABLE(OPS,OBJECT,ANNEX,WRITEBUF,READBUF,OFFSET,LEN) (-1)
-#endif
- return NATIVE_XFER_UNWIND_TABLE (ops, object, annex, readbuf, writebuf,
- offset, len);
-
- case TARGET_OBJECT_AUXV:
-#ifndef NATIVE_XFER_AUXV
-#define NATIVE_XFER_AUXV(OPS,OBJECT,ANNEX,WRITEBUF,READBUF,OFFSET,LEN) (-1)
-#endif
- return NATIVE_XFER_AUXV (ops, object, annex, readbuf, writebuf,
- offset, len);
-
- default:
- return -1;
- }
-}
-
-#if !defined(CHILD_PID_TO_STR)
-char *
-child_pid_to_str (ptid_t ptid)
-{
- return normal_pid_to_str (ptid);
-}
-#endif
-
-static void
-init_child_ops (void)
-{
- deprecated_child_ops.to_shortname = "child";
- deprecated_child_ops.to_longname = "Unix child process";
- deprecated_child_ops.to_doc = "Unix child process (started by the \"run\" command).";
- deprecated_child_ops.to_open = child_open;
- deprecated_child_ops.to_attach = child_attach;
- deprecated_child_ops.to_post_attach = child_post_attach;
- deprecated_child_ops.to_detach = child_detach;
- deprecated_child_ops.to_resume = child_resume;
- deprecated_child_ops.to_wait = child_wait;
- deprecated_child_ops.to_fetch_registers = fetch_inferior_registers;
- deprecated_child_ops.to_store_registers = store_inferior_registers;
- deprecated_child_ops.to_prepare_to_store = child_prepare_to_store;
- deprecated_child_ops.deprecated_xfer_memory = child_xfer_memory;
- deprecated_child_ops.to_xfer_partial = child_xfer_partial;
- deprecated_child_ops.to_files_info = child_files_info;
- deprecated_child_ops.to_insert_breakpoint = memory_insert_breakpoint;
- deprecated_child_ops.to_remove_breakpoint = memory_remove_breakpoint;
- deprecated_child_ops.to_terminal_init = terminal_init_inferior;
- deprecated_child_ops.to_terminal_inferior = terminal_inferior;
- deprecated_child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
- deprecated_child_ops.to_terminal_save_ours = terminal_save_ours;
- deprecated_child_ops.to_terminal_ours = terminal_ours;
- deprecated_child_ops.to_terminal_info = child_terminal_info;
- deprecated_child_ops.to_kill = kill_inferior;
- deprecated_child_ops.to_create_inferior = child_create_inferior;
- deprecated_child_ops.to_post_startup_inferior = child_post_startup_inferior;
- deprecated_child_ops.to_acknowledge_created_inferior = child_acknowledge_created_inferior;
- deprecated_child_ops.to_insert_fork_catchpoint = child_insert_fork_catchpoint;
- deprecated_child_ops.to_remove_fork_catchpoint = child_remove_fork_catchpoint;
- deprecated_child_ops.to_insert_vfork_catchpoint = child_insert_vfork_catchpoint;
- deprecated_child_ops.to_remove_vfork_catchpoint = child_remove_vfork_catchpoint;
- deprecated_child_ops.to_follow_fork = child_follow_fork;
- deprecated_child_ops.to_insert_exec_catchpoint = child_insert_exec_catchpoint;
- deprecated_child_ops.to_remove_exec_catchpoint = child_remove_exec_catchpoint;
- deprecated_child_ops.to_reported_exec_events_per_exec_call = child_reported_exec_events_per_exec_call;
- deprecated_child_ops.to_has_exited = child_has_exited;
- deprecated_child_ops.to_mourn_inferior = child_mourn_inferior;
- deprecated_child_ops.to_can_run = child_can_run;
- deprecated_child_ops.to_thread_alive = child_thread_alive;
- deprecated_child_ops.to_pid_to_str = child_pid_to_str;
- deprecated_child_ops.to_stop = child_stop;
- deprecated_child_ops.to_enable_exception_callback = child_enable_exception_callback;
- deprecated_child_ops.to_get_current_exception_event = child_get_current_exception_event;
- deprecated_child_ops.to_pid_to_exec_file = child_pid_to_exec_file;
- deprecated_child_ops.to_stratum = process_stratum;
- deprecated_child_ops.to_has_all_memory = 1;
- deprecated_child_ops.to_has_memory = 1;
- deprecated_child_ops.to_has_stack = 1;
- deprecated_child_ops.to_has_registers = 1;
- deprecated_child_ops.to_has_execution = 1;
- deprecated_child_ops.to_magic = OPS_MAGIC;
-}
-
-void
-_initialize_inftarg (void)
-{
-#ifdef HAVE_OPTIONAL_PROC_FS
- char procname[32];
- int fd;
-
- /* If we have an optional /proc filesystem (e.g. under OSF/1),
- don't add ptrace support if we can access the running GDB via /proc. */
-#ifndef PROC_NAME_FMT
-#define PROC_NAME_FMT "/proc/%05d"
-#endif
- sprintf (procname, PROC_NAME_FMT, getpid ());
- fd = open (procname, O_RDONLY);
- if (fd >= 0)
- {
- close (fd);
- return;
- }
-#endif
-
- init_child_ops ();
- add_target (&deprecated_child_ops);
-}
extern int xfer_memory (CORE_ADDR, gdb_byte *, int, int,
struct mem_attrib *, struct target_ops *);
-extern int child_xfer_memory (CORE_ADDR, gdb_byte *, int, int,
- struct mem_attrib *, struct target_ops *);
-
/* Fetches the target's memory map. If one is found it is sorted
and returned, after some consistency checking. Otherwise, NULL
is returned. */
enum flash_preserve_mode preserve_flash_p,
void (*progress_cb) (ULONGEST, void *));
-
-extern char *child_pid_to_exec_file (int);
-
-extern char *child_core_file_to_sym_file (char *);
-
-#if defined(CHILD_POST_ATTACH)
-extern void child_post_attach (int);
-#endif
-
-extern void child_post_startup_inferior (ptid_t);
-
-extern void child_acknowledge_created_inferior (int);
-
-extern void child_insert_fork_catchpoint (int);
-
-extern int child_remove_fork_catchpoint (int);
-
-extern void child_insert_vfork_catchpoint (int);
-
-extern int child_remove_vfork_catchpoint (int);
-
-extern void child_acknowledge_created_inferior (int);
-
-extern int child_follow_fork (struct target_ops *, int);
-
-extern void child_insert_exec_catchpoint (int);
-
-extern int child_remove_exec_catchpoint (int);
-
-extern int child_reported_exec_events_per_exec_call (void);
-
-extern int child_has_exited (int, int, int *);
-
-extern int child_thread_alive (ptid_t);
-
/* From infrun.c. */
extern int inferior_has_forked (int pid, int *child_pid);
projects / binutils-gdb.git / commitdiff