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1287 lines
46 KiB
C
1287 lines
46 KiB
C
/* Interface between GDB and target environments, including files and processes
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Copyright 1990, 91, 92, 93, 94, 1999 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by John Gilmore.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#if !defined (TARGET_H)
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#define TARGET_H
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/* This include file defines the interface between the main part
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of the debugger, and the part which is target-specific, or
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specific to the communications interface between us and the
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target.
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A TARGET is an interface between the debugger and a particular
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kind of file or process. Targets can be STACKED in STRATA,
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so that more than one target can potentially respond to a request.
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In particular, memory accesses will walk down the stack of targets
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until they find a target that is interested in handling that particular
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address. STRATA are artificial boundaries on the stack, within
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which particular kinds of targets live. Strata exist so that
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people don't get confused by pushing e.g. a process target and then
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a file target, and wondering why they can't see the current values
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of variables any more (the file target is handling them and they
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never get to the process target). So when you push a file target,
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it goes into the file stratum, which is always below the process
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stratum. */
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#include "bfd.h"
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#include "symtab.h"
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enum strata {
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dummy_stratum, /* The lowest of the low */
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file_stratum, /* Executable files, etc */
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core_stratum, /* Core dump files */
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download_stratum, /* Downloading of remote targets */
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process_stratum /* Executing processes */
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};
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enum thread_control_capabilities {
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tc_none = 0, /* Default: can't control thread execution. */
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tc_schedlock = 1, /* Can lock the thread scheduler. */
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tc_switch = 2 /* Can switch the running thread on demand. */
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};
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/* Stuff for target_wait. */
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/* Generally, what has the program done? */
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enum target_waitkind {
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/* The program has exited. The exit status is in value.integer. */
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TARGET_WAITKIND_EXITED,
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/* The program has stopped with a signal. Which signal is in value.sig. */
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TARGET_WAITKIND_STOPPED,
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/* The program has terminated with a signal. Which signal is in
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value.sig. */
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TARGET_WAITKIND_SIGNALLED,
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/* The program is letting us know that it dynamically loaded something
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(e.g. it called load(2) on AIX). */
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TARGET_WAITKIND_LOADED,
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/* The program has forked. A "related" process' ID is in value.related_pid.
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I.e., if the child forks, value.related_pid is the parent's ID.
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*/
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TARGET_WAITKIND_FORKED,
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/* The program has vforked. A "related" process's ID is in value.related_pid.
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*/
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TARGET_WAITKIND_VFORKED,
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/* The program has exec'ed a new executable file. The new file's pathname
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is pointed to by value.execd_pathname.
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*/
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TARGET_WAITKIND_EXECD,
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/* The program has entered or returned from a system call. On HP-UX, this
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is used in the hardware watchpoint implementation. The syscall's unique
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integer ID number is in value.syscall_id;
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*/
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TARGET_WAITKIND_SYSCALL_ENTRY,
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TARGET_WAITKIND_SYSCALL_RETURN,
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/* Nothing happened, but we stopped anyway. This perhaps should be handled
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within target_wait, but I'm not sure target_wait should be resuming the
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inferior. */
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TARGET_WAITKIND_SPURIOUS
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};
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/* The numbering of these signals is chosen to match traditional unix
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signals (insofar as various unices use the same numbers, anyway).
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It is also the numbering of the GDB remote protocol. Other remote
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protocols, if they use a different numbering, should make sure to
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translate appropriately.
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Since these numbers have actually made it out into other software
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(stubs, etc.), you mustn't disturb the assigned numbering. If you
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need to add new signals here, add them to the end of the explicitly
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numbered signals.
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This is based strongly on Unix/POSIX signals for several reasons:
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(1) This set of signals represents a widely-accepted attempt to
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represent events of this sort in a portable fashion, (2) we want a
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signal to make it from wait to child_wait to the user intact, (3) many
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remote protocols use a similar encoding. However, it is
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recognized that this set of signals has limitations (such as not
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distinguishing between various kinds of SIGSEGV, or not
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distinguishing hitting a breakpoint from finishing a single step).
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So in the future we may get around this either by adding additional
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signals for breakpoint, single-step, etc., or by adding signal
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codes; the latter seems more in the spirit of what BSD, System V,
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etc. are doing to address these issues. */
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/* For an explanation of what each signal means, see
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target_signal_to_string. */
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enum target_signal {
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/* Used some places (e.g. stop_signal) to record the concept that
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there is no signal. */
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TARGET_SIGNAL_0 = 0,
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TARGET_SIGNAL_FIRST = 0,
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TARGET_SIGNAL_HUP = 1,
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TARGET_SIGNAL_INT = 2,
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TARGET_SIGNAL_QUIT = 3,
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TARGET_SIGNAL_ILL = 4,
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TARGET_SIGNAL_TRAP = 5,
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TARGET_SIGNAL_ABRT = 6,
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TARGET_SIGNAL_EMT = 7,
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TARGET_SIGNAL_FPE = 8,
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TARGET_SIGNAL_KILL = 9,
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TARGET_SIGNAL_BUS = 10,
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TARGET_SIGNAL_SEGV = 11,
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TARGET_SIGNAL_SYS = 12,
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TARGET_SIGNAL_PIPE = 13,
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TARGET_SIGNAL_ALRM = 14,
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TARGET_SIGNAL_TERM = 15,
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TARGET_SIGNAL_URG = 16,
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TARGET_SIGNAL_STOP = 17,
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TARGET_SIGNAL_TSTP = 18,
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TARGET_SIGNAL_CONT = 19,
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TARGET_SIGNAL_CHLD = 20,
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TARGET_SIGNAL_TTIN = 21,
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TARGET_SIGNAL_TTOU = 22,
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TARGET_SIGNAL_IO = 23,
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TARGET_SIGNAL_XCPU = 24,
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TARGET_SIGNAL_XFSZ = 25,
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TARGET_SIGNAL_VTALRM = 26,
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TARGET_SIGNAL_PROF = 27,
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TARGET_SIGNAL_WINCH = 28,
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TARGET_SIGNAL_LOST = 29,
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TARGET_SIGNAL_USR1 = 30,
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TARGET_SIGNAL_USR2 = 31,
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TARGET_SIGNAL_PWR = 32,
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/* Similar to SIGIO. Perhaps they should have the same number. */
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TARGET_SIGNAL_POLL = 33,
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TARGET_SIGNAL_WIND = 34,
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TARGET_SIGNAL_PHONE = 35,
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TARGET_SIGNAL_WAITING = 36,
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TARGET_SIGNAL_LWP = 37,
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TARGET_SIGNAL_DANGER = 38,
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TARGET_SIGNAL_GRANT = 39,
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TARGET_SIGNAL_RETRACT = 40,
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TARGET_SIGNAL_MSG = 41,
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TARGET_SIGNAL_SOUND = 42,
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TARGET_SIGNAL_SAK = 43,
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TARGET_SIGNAL_PRIO = 44,
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TARGET_SIGNAL_REALTIME_33 = 45,
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TARGET_SIGNAL_REALTIME_34 = 46,
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TARGET_SIGNAL_REALTIME_35 = 47,
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TARGET_SIGNAL_REALTIME_36 = 48,
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TARGET_SIGNAL_REALTIME_37 = 49,
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TARGET_SIGNAL_REALTIME_38 = 50,
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TARGET_SIGNAL_REALTIME_39 = 51,
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TARGET_SIGNAL_REALTIME_40 = 52,
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TARGET_SIGNAL_REALTIME_41 = 53,
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TARGET_SIGNAL_REALTIME_42 = 54,
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TARGET_SIGNAL_REALTIME_43 = 55,
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TARGET_SIGNAL_REALTIME_44 = 56,
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TARGET_SIGNAL_REALTIME_45 = 57,
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TARGET_SIGNAL_REALTIME_46 = 58,
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TARGET_SIGNAL_REALTIME_47 = 59,
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TARGET_SIGNAL_REALTIME_48 = 60,
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TARGET_SIGNAL_REALTIME_49 = 61,
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TARGET_SIGNAL_REALTIME_50 = 62,
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TARGET_SIGNAL_REALTIME_51 = 63,
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TARGET_SIGNAL_REALTIME_52 = 64,
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TARGET_SIGNAL_REALTIME_53 = 65,
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TARGET_SIGNAL_REALTIME_54 = 66,
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TARGET_SIGNAL_REALTIME_55 = 67,
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TARGET_SIGNAL_REALTIME_56 = 68,
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TARGET_SIGNAL_REALTIME_57 = 69,
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TARGET_SIGNAL_REALTIME_58 = 70,
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TARGET_SIGNAL_REALTIME_59 = 71,
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TARGET_SIGNAL_REALTIME_60 = 72,
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TARGET_SIGNAL_REALTIME_61 = 73,
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TARGET_SIGNAL_REALTIME_62 = 74,
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TARGET_SIGNAL_REALTIME_63 = 75,
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/* Used internally by Solaris threads. See signal(5) on Solaris. */
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TARGET_SIGNAL_CANCEL = 76,
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#if defined(MACH) || defined(__MACH__)
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/* Mach exceptions */
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TARGET_EXC_BAD_ACCESS,
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TARGET_EXC_BAD_INSTRUCTION,
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TARGET_EXC_ARITHMETIC,
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TARGET_EXC_EMULATION,
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TARGET_EXC_SOFTWARE,
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TARGET_EXC_BREAKPOINT,
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#endif
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TARGET_SIGNAL_INFO,
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/* Some signal we don't know about. */
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TARGET_SIGNAL_UNKNOWN,
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/* Use whatever signal we use when one is not specifically specified
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(for passing to proceed and so on). */
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TARGET_SIGNAL_DEFAULT,
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/* Last and unused enum value, for sizing arrays, etc. */
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TARGET_SIGNAL_LAST
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};
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struct target_waitstatus {
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enum target_waitkind kind;
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/* Forked child pid, execd pathname, exit status or signal number. */
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union {
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int integer;
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enum target_signal sig;
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int related_pid;
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char * execd_pathname;
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int syscall_id;
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} value;
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};
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/* Return the string for a signal. */
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extern char *target_signal_to_string PARAMS ((enum target_signal));
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/* Return the name (SIGHUP, etc.) for a signal. */
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extern char *target_signal_to_name PARAMS ((enum target_signal));
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/* Given a name (SIGHUP, etc.), return its signal. */
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enum target_signal target_signal_from_name PARAMS ((char *));
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/* If certain kinds of activity happen, target_wait should perform
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callbacks. */
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/* Right now we just call (*TARGET_ACTIVITY_FUNCTION) if I/O is possible
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on TARGET_ACTIVITY_FD. */
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extern int target_activity_fd;
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/* Returns zero to leave the inferior alone, one to interrupt it. */
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extern int (*target_activity_function) PARAMS ((void));
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struct target_ops
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{
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char *to_shortname; /* Name this target type */
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char *to_longname; /* Name for printing */
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char *to_doc; /* Documentation. Does not include trailing
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newline, and starts with a one-line descrip-
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tion (probably similar to to_longname). */
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void (*to_open) PARAMS ((char *, int));
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void (*to_close) PARAMS ((int));
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void (*to_attach) PARAMS ((char *, int));
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void (*to_post_attach) PARAMS ((int));
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void (*to_require_attach) PARAMS ((char *, int));
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void (*to_detach) PARAMS ((char *, int));
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void (*to_require_detach) PARAMS ((int, char *, int));
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void (*to_resume) PARAMS ((int, int, enum target_signal));
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int (*to_wait) PARAMS ((int, struct target_waitstatus *));
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void (*to_post_wait) PARAMS ((int, int));
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void (*to_fetch_registers) PARAMS ((int));
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void (*to_store_registers) PARAMS ((int));
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void (*to_prepare_to_store) PARAMS ((void));
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/* Transfer LEN bytes of memory between GDB address MYADDR and
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target address MEMADDR. If WRITE, transfer them to the target, else
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transfer them from the target. TARGET is the target from which we
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get this function.
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Return value, N, is one of the following:
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0 means that we can't handle this. If errno has been set, it is the
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error which prevented us from doing it (FIXME: What about bfd_error?).
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positive (call it N) means that we have transferred N bytes
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starting at MEMADDR. We might be able to handle more bytes
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beyond this length, but no promises.
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negative (call its absolute value N) means that we cannot
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transfer right at MEMADDR, but we could transfer at least
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something at MEMADDR + N. */
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int (*to_xfer_memory) PARAMS ((CORE_ADDR memaddr, char *myaddr,
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int len, int write,
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struct target_ops * target));
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#if 0
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/* Enable this after 4.12. */
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/* Search target memory. Start at STARTADDR and take LEN bytes of
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target memory, and them with MASK, and compare to DATA. If they
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match, set *ADDR_FOUND to the address we found it at, store the data
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we found at LEN bytes starting at DATA_FOUND, and return. If
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not, add INCREMENT to the search address and keep trying until
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the search address is outside of the range [LORANGE,HIRANGE).
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If we don't find anything, set *ADDR_FOUND to (CORE_ADDR)0 and return. */
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void (*to_search) PARAMS ((int len, char *data, char *mask,
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CORE_ADDR startaddr, int increment,
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CORE_ADDR lorange, CORE_ADDR hirange,
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CORE_ADDR *addr_found, char *data_found));
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#define target_search(len, data, mask, startaddr, increment, lorange, hirange, addr_found, data_found) \
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(*current_target.to_search) (len, data, mask, startaddr, increment, \
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lorange, hirange, addr_found, data_found)
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#endif /* 0 */
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void (*to_files_info) PARAMS ((struct target_ops *));
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int (*to_insert_breakpoint) PARAMS ((CORE_ADDR, char *));
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int (*to_remove_breakpoint) PARAMS ((CORE_ADDR, char *));
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void (*to_terminal_init) PARAMS ((void));
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void (*to_terminal_inferior) PARAMS ((void));
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void (*to_terminal_ours_for_output) PARAMS ((void));
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void (*to_terminal_ours) PARAMS ((void));
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void (*to_terminal_info) PARAMS ((char *, int));
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void (*to_kill) PARAMS ((void));
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void (*to_load) PARAMS ((char *, int));
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int (*to_lookup_symbol) PARAMS ((char *, CORE_ADDR *));
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void (*to_create_inferior) PARAMS ((char *, char *, char **));
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void (*to_post_startup_inferior) PARAMS ((int));
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void (*to_acknowledge_created_inferior) PARAMS ((int));
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void (*to_clone_and_follow_inferior) PARAMS ((int, int *));
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void (*to_post_follow_inferior_by_clone) PARAMS ((void));
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int (*to_insert_fork_catchpoint) PARAMS ((int));
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int (*to_remove_fork_catchpoint) PARAMS ((int));
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int (*to_insert_vfork_catchpoint) PARAMS ((int));
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int (*to_remove_vfork_catchpoint) PARAMS ((int));
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int (*to_has_forked) PARAMS ((int, int *));
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int (*to_has_vforked) PARAMS ((int, int *));
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int (*to_can_follow_vfork_prior_to_exec) PARAMS ((void));
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void (*to_post_follow_vfork) PARAMS ((int, int, int, int));
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int (*to_insert_exec_catchpoint) PARAMS ((int));
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int (*to_remove_exec_catchpoint) PARAMS ((int));
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int (*to_has_execd) PARAMS ((int, char **));
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int (*to_reported_exec_events_per_exec_call) PARAMS ((void));
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int (*to_has_syscall_event) PARAMS ((int, enum target_waitkind *, int *));
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int (*to_has_exited) PARAMS ((int, int, int *));
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void (*to_mourn_inferior) PARAMS ((void));
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int (*to_can_run) PARAMS ((void));
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void (*to_notice_signals) PARAMS ((int pid));
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int (*to_thread_alive) PARAMS ((int pid));
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void (*to_find_new_threads) PARAMS ((void));
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||
void (*to_stop) PARAMS ((void));
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||
int (*to_query) PARAMS ((int/*char*/, char *, char *, int *));
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||
struct symtab_and_line * (*to_enable_exception_callback) PARAMS ((enum exception_event_kind, int));
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struct exception_event_record * (*to_get_current_exception_event) PARAMS ((void));
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char * (*to_pid_to_exec_file) PARAMS ((int pid));
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char * (*to_core_file_to_sym_file) PARAMS ((char *));
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enum strata to_stratum;
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struct target_ops
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*DONT_USE; /* formerly to_next */
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int to_has_all_memory;
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int to_has_memory;
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||
int to_has_stack;
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||
int to_has_registers;
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||
int to_has_execution;
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||
int to_has_thread_control; /* control thread execution */
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||
struct section_table
|
||
*to_sections;
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||
struct section_table
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*to_sections_end;
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int to_magic;
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/* Need sub-structure for target machine related rather than comm related? */
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};
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||
/* Magic number for checking ops size. If a struct doesn't end with this
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||
number, somebody changed the declaration but didn't change all the
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||
places that initialize one. */
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||
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#define OPS_MAGIC 3840
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||
|
||
/* The ops structure for our "current" target process. This should
|
||
never be NULL. If there is no target, it points to the dummy_target. */
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extern struct target_ops current_target;
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/* An item on the target stack. */
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struct target_stack_item
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{
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||
struct target_stack_item *next;
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struct target_ops *target_ops;
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};
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/* The target stack. */
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||
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extern struct target_stack_item *target_stack;
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||
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||
/* Define easy words for doing these operations on our current target. */
|
||
|
||
#define target_shortname (current_target.to_shortname)
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||
#define target_longname (current_target.to_longname)
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||
|
||
/* The open routine takes the rest of the parameters from the command,
|
||
and (if successful) pushes a new target onto the stack.
|
||
Targets should supply this routine, if only to provide an error message. */
|
||
#define target_open(name, from_tty) \
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(*current_target.to_open) (name, from_tty)
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|
||
/* Does whatever cleanup is required for a target that we are no longer
|
||
going to be calling. Argument says whether we are quitting gdb and
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||
should not get hung in case of errors, or whether we want a clean
|
||
termination even if it takes a while. This routine is automatically
|
||
always called just before a routine is popped off the target stack.
|
||
Closing file descriptors and freeing memory are typical things it should
|
||
do. */
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||
|
||
#define target_close(quitting) \
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||
(*current_target.to_close) (quitting)
|
||
|
||
/* Attaches to a process on the target side. Arguments are as passed
|
||
to the `attach' command by the user. This routine can be called
|
||
when the target is not on the target-stack, if the target_can_run
|
||
routine returns 1; in that case, it must push itself onto the stack.
|
||
Upon exit, the target should be ready for normal operations, and
|
||
should be ready to deliver the status of the process immediately
|
||
(without waiting) to an upcoming target_wait call. */
|
||
|
||
#define target_attach(args, from_tty) \
|
||
(*current_target.to_attach) (args, from_tty)
|
||
|
||
/* The target_attach operation places a process under debugger control,
|
||
and stops the process.
|
||
|
||
This operation provides a target-specific hook that allows the
|
||
necessary bookkeeping to be performed after an attach completes.
|
||
*/
|
||
#define target_post_attach(pid) \
|
||
(*current_target.to_post_attach) (pid)
|
||
|
||
/* Attaches to a process on the target side, if not already attached.
|
||
(If already attached, takes no action.)
|
||
|
||
This operation can be used to follow the child process of a fork.
|
||
On some targets, such child processes of an original inferior process
|
||
are automatically under debugger control, and thus do not require an
|
||
actual attach operation. */
|
||
|
||
#define target_require_attach(args, from_tty) \
|
||
(*current_target.to_require_attach) (args, from_tty)
|
||
|
||
/* Takes a program previously attached to and detaches it.
|
||
The program may resume execution (some targets do, some don't) and will
|
||
no longer stop on signals, etc. We better not have left any breakpoints
|
||
in the program or it'll die when it hits one. ARGS is arguments
|
||
typed by the user (e.g. a signal to send the process). FROM_TTY
|
||
says whether to be verbose or not. */
|
||
|
||
extern void
|
||
target_detach PARAMS ((char *, int));
|
||
|
||
/* Detaches from a process on the target side, if not already dettached.
|
||
(If already detached, takes no action.)
|
||
|
||
This operation can be used to follow the parent process of a fork.
|
||
On some targets, such child processes of an original inferior process
|
||
are automatically under debugger control, and thus do require an actual
|
||
detach operation.
|
||
|
||
PID is the process id of the child to detach from.
|
||
ARGS is arguments typed by the user (e.g. a signal to send the process).
|
||
FROM_TTY says whether to be verbose or not. */
|
||
|
||
#define target_require_detach(pid, args, from_tty) \
|
||
(*current_target.to_require_detach) (pid, args, from_tty)
|
||
|
||
/* Resume execution of the target process PID. STEP says whether to
|
||
single-step or to run free; SIGGNAL is the signal to be given to
|
||
the target, or TARGET_SIGNAL_0 for no signal. The caller may not
|
||
pass TARGET_SIGNAL_DEFAULT. */
|
||
|
||
#define target_resume(pid, step, siggnal) \
|
||
(*current_target.to_resume) (pid, step, siggnal)
|
||
|
||
/* Wait for process pid to do something. Pid = -1 to wait for any pid
|
||
to do something. Return pid of child, or -1 in case of error;
|
||
store status through argument pointer STATUS. Note that it is
|
||
*not* OK to return_to_top_level out of target_wait without popping
|
||
the debugging target from the stack; GDB isn't prepared to get back
|
||
to the prompt with a debugging target but without the frame cache,
|
||
stop_pc, etc., set up. */
|
||
|
||
#define target_wait(pid, status) \
|
||
(*current_target.to_wait) (pid, status)
|
||
|
||
/* The target_wait operation waits for a process event to occur, and
|
||
thereby stop the process.
|
||
|
||
On some targets, certain events may happen in sequences. gdb's
|
||
correct response to any single event of such a sequence may require
|
||
knowledge of what earlier events in the sequence have been seen.
|
||
|
||
This operation provides a target-specific hook that allows the
|
||
necessary bookkeeping to be performed to track such sequences.
|
||
*/
|
||
|
||
#define target_post_wait(pid, status) \
|
||
(*current_target.to_post_wait) (pid, status)
|
||
|
||
/* Fetch register REGNO, or all regs if regno == -1. No result. */
|
||
|
||
#define target_fetch_registers(regno) \
|
||
(*current_target.to_fetch_registers) (regno)
|
||
|
||
/* Store at least register REGNO, or all regs if REGNO == -1.
|
||
It can store as many registers as it wants to, so target_prepare_to_store
|
||
must have been previously called. Calls error() if there are problems. */
|
||
|
||
#define target_store_registers(regs) \
|
||
(*current_target.to_store_registers) (regs)
|
||
|
||
/* 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. */
|
||
|
||
#define target_prepare_to_store() \
|
||
(*current_target.to_prepare_to_store) ()
|
||
|
||
extern int target_read_string PARAMS ((CORE_ADDR, char **, int, int *));
|
||
|
||
extern int
|
||
target_read_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len));
|
||
|
||
extern int
|
||
target_read_memory_section PARAMS ((CORE_ADDR memaddr, char *myaddr, int len,
|
||
asection *bfd_section));
|
||
|
||
extern int
|
||
target_read_memory_partial PARAMS ((CORE_ADDR, char *, int, int *));
|
||
|
||
extern int
|
||
target_write_memory PARAMS ((CORE_ADDR, char *, int));
|
||
|
||
extern int
|
||
xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
|
||
|
||
extern int
|
||
child_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
|
||
|
||
extern char *
|
||
child_pid_to_exec_file PARAMS ((int));
|
||
|
||
extern char *
|
||
child_core_file_to_sym_file PARAMS ((char *));
|
||
|
||
#if defined(CHILD_POST_ATTACH)
|
||
extern void
|
||
child_post_attach PARAMS ((int));
|
||
#endif
|
||
|
||
extern void
|
||
child_post_wait PARAMS ((int, int));
|
||
|
||
extern void
|
||
child_post_startup_inferior PARAMS ((int));
|
||
|
||
extern void
|
||
child_acknowledge_created_inferior PARAMS ((int));
|
||
|
||
extern void
|
||
child_clone_and_follow_inferior PARAMS ((int, int *));
|
||
|
||
extern void
|
||
child_post_follow_inferior_by_clone PARAMS ((void));
|
||
|
||
extern int
|
||
child_insert_fork_catchpoint PARAMS ((int));
|
||
|
||
extern int
|
||
child_remove_fork_catchpoint PARAMS ((int));
|
||
|
||
extern int
|
||
child_insert_vfork_catchpoint PARAMS ((int));
|
||
|
||
extern int
|
||
child_remove_vfork_catchpoint PARAMS ((int));
|
||
|
||
extern int
|
||
child_has_forked PARAMS ((int, int *));
|
||
|
||
extern int
|
||
child_has_vforked PARAMS ((int, int *));
|
||
|
||
extern void
|
||
child_acknowledge_created_inferior PARAMS ((int));
|
||
|
||
extern int
|
||
child_can_follow_vfork_prior_to_exec PARAMS ((void));
|
||
|
||
extern void
|
||
child_post_follow_vfork PARAMS ((int, int, int, int));
|
||
|
||
extern int
|
||
child_insert_exec_catchpoint PARAMS ((int));
|
||
|
||
extern int
|
||
child_remove_exec_catchpoint PARAMS ((int));
|
||
|
||
extern int
|
||
child_has_execd PARAMS ((int, char **));
|
||
|
||
extern int
|
||
child_reported_exec_events_per_exec_call PARAMS ((void));
|
||
|
||
extern int
|
||
child_has_syscall_event PARAMS ((int, enum target_waitkind *, int *));
|
||
|
||
extern int
|
||
child_has_exited PARAMS ((int, int, int *));
|
||
|
||
extern int
|
||
child_thread_alive PARAMS ((int));
|
||
|
||
/* From exec.c */
|
||
|
||
extern void
|
||
print_section_info PARAMS ((struct target_ops *, bfd *));
|
||
|
||
/* Print a line about the current target. */
|
||
|
||
#define target_files_info() \
|
||
(*current_target.to_files_info) (¤t_target)
|
||
|
||
/* Insert a breakpoint at address ADDR in the target machine.
|
||
SAVE is a pointer to memory allocated for saving the
|
||
target contents. It is guaranteed by the caller to be long enough
|
||
to save "sizeof BREAKPOINT" bytes. Result is 0 for success, or
|
||
an errno value. */
|
||
|
||
#define target_insert_breakpoint(addr, save) \
|
||
(*current_target.to_insert_breakpoint) (addr, save)
|
||
|
||
/* Remove a breakpoint at address ADDR in the target machine.
|
||
SAVE is a pointer to the same save area
|
||
that was previously passed to target_insert_breakpoint.
|
||
Result is 0 for success, or an errno value. */
|
||
|
||
#define target_remove_breakpoint(addr, save) \
|
||
(*current_target.to_remove_breakpoint) (addr, save)
|
||
|
||
/* Initialize the terminal settings we record for the inferior,
|
||
before we actually run the inferior. */
|
||
|
||
#define target_terminal_init() \
|
||
(*current_target.to_terminal_init) ()
|
||
|
||
/* Put the inferior's terminal settings into effect.
|
||
This is preparation for starting or resuming the inferior. */
|
||
|
||
#define target_terminal_inferior() \
|
||
(*current_target.to_terminal_inferior) ()
|
||
|
||
/* Put some of our terminal settings into effect,
|
||
enough to get proper results from our output,
|
||
but do not change into or out of RAW mode
|
||
so that no input is discarded.
|
||
|
||
After doing this, either terminal_ours or terminal_inferior
|
||
should be called to get back to a normal state of affairs. */
|
||
|
||
#define target_terminal_ours_for_output() \
|
||
(*current_target.to_terminal_ours_for_output) ()
|
||
|
||
/* Put our terminal settings into effect.
|
||
First record the inferior's terminal settings
|
||
so they can be restored properly later. */
|
||
|
||
#define target_terminal_ours() \
|
||
(*current_target.to_terminal_ours) ()
|
||
|
||
/* Print useful information about our terminal status, if such a thing
|
||
exists. */
|
||
|
||
#define target_terminal_info(arg, from_tty) \
|
||
(*current_target.to_terminal_info) (arg, from_tty)
|
||
|
||
/* Kill the inferior process. Make it go away. */
|
||
|
||
#define target_kill() \
|
||
(*current_target.to_kill) ()
|
||
|
||
/* Load an executable file into the target process. This is expected to
|
||
not only bring new code into the target process, but also to update
|
||
GDB's symbol tables to match. */
|
||
|
||
#define target_load(arg, from_tty) \
|
||
(*current_target.to_load) (arg, from_tty)
|
||
|
||
/* Look up a symbol in the target's symbol table. NAME is the symbol
|
||
name. ADDRP is a CORE_ADDR * pointing to where the value of the symbol
|
||
should be returned. The result is 0 if successful, nonzero if the
|
||
symbol does not exist in the target environment. This function should
|
||
not call error() if communication with the target is interrupted, since
|
||
it is called from symbol reading, but should return nonzero, possibly
|
||
doing a complain(). */
|
||
|
||
#define target_lookup_symbol(name, addrp) \
|
||
(*current_target.to_lookup_symbol) (name, addrp)
|
||
|
||
/* Start an inferior process and set inferior_pid 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().
|
||
On VxWorks and various standalone systems, we ignore exec_file. */
|
||
|
||
#define target_create_inferior(exec_file, args, env) \
|
||
(*current_target.to_create_inferior) (exec_file, args, env)
|
||
|
||
|
||
/* Some targets (such as ttrace-based HPUX) don't allow us to request
|
||
notification of inferior events such as fork and vork immediately
|
||
after the inferior is created. (This because of how gdb gets an
|
||
inferior created via invoking a shell to do it. In such a scenario,
|
||
if the shell init file has commands in it, the shell will fork and
|
||
exec for each of those commands, and we will see each such fork
|
||
event. Very bad.)
|
||
|
||
Such targets will supply an appropriate definition for this function.
|
||
*/
|
||
#define target_post_startup_inferior(pid) \
|
||
(*current_target.to_post_startup_inferior) (pid)
|
||
|
||
/* On some targets, the sequence of starting up an inferior requires
|
||
some synchronization between gdb and the new inferior process, PID.
|
||
*/
|
||
#define target_acknowledge_created_inferior(pid) \
|
||
(*current_target.to_acknowledge_created_inferior) (pid)
|
||
|
||
/* An inferior process has been created via a fork() or similar
|
||
system call. This function will clone the debugger, then ensure
|
||
that CHILD_PID is attached to by that debugger.
|
||
|
||
FOLLOWED_CHILD is set TRUE on return *for the clone debugger only*,
|
||
and FALSE otherwise. (The original and clone debuggers can use this
|
||
to determine which they are, if need be.)
|
||
|
||
(This is not a terribly useful feature without a GUI to prevent
|
||
the two debuggers from competing for shell input.)
|
||
*/
|
||
#define target_clone_and_follow_inferior(child_pid,followed_child) \
|
||
(*current_target.to_clone_and_follow_inferior) (child_pid, followed_child)
|
||
|
||
/* This operation is intended to be used as the last in a sequence of
|
||
steps taken when following both parent and child of a fork. This
|
||
is used by a clone of the debugger, which will follow the child.
|
||
|
||
The original debugger has detached from this process, and the
|
||
clone has attached to it.
|
||
|
||
On some targets, this requires a bit of cleanup to make it work
|
||
correctly.
|
||
*/
|
||
#define target_post_follow_inferior_by_clone() \
|
||
(*current_target.to_post_follow_inferior_by_clone) ()
|
||
|
||
/* On some targets, we can catch an inferior fork or vfork event when it
|
||
occurs. These functions insert/remove an already-created catchpoint for
|
||
such events.
|
||
*/
|
||
#define target_insert_fork_catchpoint(pid) \
|
||
(*current_target.to_insert_fork_catchpoint) (pid)
|
||
|
||
#define target_remove_fork_catchpoint(pid) \
|
||
(*current_target.to_remove_fork_catchpoint) (pid)
|
||
|
||
#define target_insert_vfork_catchpoint(pid) \
|
||
(*current_target.to_insert_vfork_catchpoint) (pid)
|
||
|
||
#define target_remove_vfork_catchpoint(pid) \
|
||
(*current_target.to_remove_vfork_catchpoint) (pid)
|
||
|
||
/* Returns TRUE if PID has invoked the fork() system call. And,
|
||
also sets CHILD_PID to the process id of the other ("child")
|
||
inferior process that was created by that call.
|
||
*/
|
||
#define target_has_forked(pid,child_pid) \
|
||
(*current_target.to_has_forked) (pid,child_pid)
|
||
|
||
/* Returns TRUE if PID has invoked the vfork() system call. And,
|
||
also sets CHILD_PID to the process id of the other ("child")
|
||
inferior process that was created by that call.
|
||
*/
|
||
#define target_has_vforked(pid,child_pid) \
|
||
(*current_target.to_has_vforked) (pid,child_pid)
|
||
|
||
/* Some platforms (such as pre-10.20 HP-UX) don't allow us to do
|
||
anything to a vforked child before it subsequently calls exec().
|
||
On such platforms, we say that the debugger cannot "follow" the
|
||
child until it has vforked.
|
||
|
||
This function should be defined to return 1 by those targets
|
||
which can allow the debugger to immediately follow a vforked
|
||
child, and 0 if they cannot.
|
||
*/
|
||
#define target_can_follow_vfork_prior_to_exec() \
|
||
(*current_target.to_can_follow_vfork_prior_to_exec) ()
|
||
|
||
/* An inferior process has been created via a vfork() system call.
|
||
The debugger has followed the parent, the child, or both. The
|
||
process of setting up for that follow may have required some
|
||
target-specific trickery to track the sequence of reported events.
|
||
If so, this function should be defined by those targets that
|
||
require the debugger to perform cleanup or initialization after
|
||
the vfork follow.
|
||
*/
|
||
#define target_post_follow_vfork(parent_pid,followed_parent,child_pid,followed_child) \
|
||
(*current_target.to_post_follow_vfork) (parent_pid,followed_parent,child_pid,followed_child)
|
||
|
||
/* On some targets, we can catch an inferior exec event when it
|
||
occurs. These functions insert/remove an already-created catchpoint
|
||
for such events.
|
||
*/
|
||
#define target_insert_exec_catchpoint(pid) \
|
||
(*current_target.to_insert_exec_catchpoint) (pid)
|
||
|
||
#define target_remove_exec_catchpoint(pid) \
|
||
(*current_target.to_remove_exec_catchpoint) (pid)
|
||
|
||
/* Returns TRUE if PID has invoked a flavor of the exec() system call.
|
||
And, also sets EXECD_PATHNAME to the pathname of the executable file
|
||
that was passed to exec(), and is now being executed.
|
||
*/
|
||
#define target_has_execd(pid,execd_pathname) \
|
||
(*current_target.to_has_execd) (pid,execd_pathname)
|
||
|
||
/* Returns the number of exec events that are reported when a process
|
||
invokes a flavor of the exec() system call on this target, if exec
|
||
events are being reported.
|
||
*/
|
||
#define target_reported_exec_events_per_exec_call() \
|
||
(*current_target.to_reported_exec_events_per_exec_call) ()
|
||
|
||
/* Returns TRUE if PID has reported a syscall event. And, also sets
|
||
KIND to the appropriate TARGET_WAITKIND_, and sets SYSCALL_ID to
|
||
the unique integer ID of the syscall.
|
||
*/
|
||
#define target_has_syscall_event(pid,kind,syscall_id) \
|
||
(*current_target.to_has_syscall_event) (pid,kind,syscall_id)
|
||
|
||
/* Returns TRUE if PID has exited. And, also sets EXIT_STATUS to the
|
||
exit code of PID, if any.
|
||
*/
|
||
#define target_has_exited(pid,wait_status,exit_status) \
|
||
(*current_target.to_has_exited) (pid,wait_status,exit_status)
|
||
|
||
/* The debugger has completed a blocking wait() call. There is now
|
||
some process event that must be processed. This function should
|
||
be defined by those targets that require the debugger to perform
|
||
cleanup or internal state changes in response to the process event.
|
||
*/
|
||
|
||
/* The inferior process has died. Do what is right. */
|
||
|
||
#define target_mourn_inferior() \
|
||
(*current_target.to_mourn_inferior) ()
|
||
|
||
/* Does target have enough data to do a run or attach command? */
|
||
|
||
#define target_can_run(t) \
|
||
((t)->to_can_run) ()
|
||
|
||
/* post process changes to signal handling in the inferior. */
|
||
|
||
#define target_notice_signals(pid) \
|
||
(*current_target.to_notice_signals) (pid)
|
||
|
||
/* Check to see if a thread is still alive. */
|
||
|
||
#define target_thread_alive(pid) \
|
||
(*current_target.to_thread_alive) (pid)
|
||
|
||
/* Query for new threads and add them to the thread list. */
|
||
|
||
#define target_find_new_threads() \
|
||
do { \
|
||
if (current_target.to_find_new_threads) \
|
||
(*current_target.to_find_new_threads) (); \
|
||
} while (0);
|
||
|
||
/* Make target stop in a continuable fashion. (For instance, under Unix, this
|
||
should act like SIGSTOP). This function is normally used by GUIs to
|
||
implement a stop button. */
|
||
|
||
#define target_stop current_target.to_stop
|
||
|
||
/* Queries the target side for some information. The first argument is a
|
||
letter specifying the type of the query, which is used to determine who
|
||
should process it. The second argument is a string that specifies which
|
||
information is desired and the third is a buffer that carries back the
|
||
response from the target side. The fourth parameter is the size of the
|
||
output buffer supplied. */
|
||
|
||
#define target_query(query_type, query, resp_buffer, bufffer_size) \
|
||
(*current_target.to_query) (query_type, query, resp_buffer, bufffer_size)
|
||
|
||
/* Get the symbol information for a breakpointable routine called when
|
||
an exception event occurs.
|
||
Intended mainly for C++, and for those
|
||
platforms/implementations where such a callback mechanism is available,
|
||
e.g. HP-UX with ANSI C++ (aCC). Some compilers (e.g. g++) support
|
||
different mechanisms for debugging exceptions. */
|
||
|
||
#define target_enable_exception_callback(kind, enable) \
|
||
(*current_target.to_enable_exception_callback) (kind, enable)
|
||
|
||
/* Get the current exception event kind -- throw or catch, etc. */
|
||
|
||
#define target_get_current_exception_event() \
|
||
(*current_target.to_get_current_exception_event) ()
|
||
|
||
/* Pointer to next target in the chain, e.g. a core file and an exec file. */
|
||
|
||
#define target_next \
|
||
(current_target.to_next)
|
||
|
||
/* Does the target include all of memory, or only part of it? This
|
||
determines whether we look up the target chain for other parts of
|
||
memory if this target can't satisfy a request. */
|
||
|
||
#define target_has_all_memory \
|
||
(current_target.to_has_all_memory)
|
||
|
||
/* Does the target include memory? (Dummy targets don't.) */
|
||
|
||
#define target_has_memory \
|
||
(current_target.to_has_memory)
|
||
|
||
/* Does the target have a stack? (Exec files don't, VxWorks doesn't, until
|
||
we start a process.) */
|
||
|
||
#define target_has_stack \
|
||
(current_target.to_has_stack)
|
||
|
||
/* Does the target have registers? (Exec files don't.) */
|
||
|
||
#define target_has_registers \
|
||
(current_target.to_has_registers)
|
||
|
||
/* Does the target have execution? Can we make it jump (through
|
||
hoops), or pop its stack a few times? FIXME: If this is to work that
|
||
way, it needs to check whether an inferior actually exists.
|
||
remote-udi.c and probably other targets can be the current target
|
||
when the inferior doesn't actually exist at the moment. Right now
|
||
this just tells us whether this target is *capable* of execution. */
|
||
|
||
#define target_has_execution \
|
||
(current_target.to_has_execution)
|
||
|
||
/* Can the target support the debugger control of thread execution?
|
||
a) Can it lock the thread scheduler?
|
||
b) Can it switch the currently running thread? */
|
||
|
||
#define target_can_lock_scheduler \
|
||
(current_target.to_has_thread_control & tc_schedlock)
|
||
|
||
#define target_can_switch_threads \
|
||
(current_target.to_has_thread_control & tc_switch)
|
||
|
||
extern void target_link PARAMS ((char *, CORE_ADDR *));
|
||
|
||
/* Converts a process id to a string. Usually, the string just contains
|
||
`process xyz', but on some systems it may contain
|
||
`process xyz thread abc'. */
|
||
|
||
#ifndef target_pid_to_str
|
||
#define target_pid_to_str(PID) \
|
||
normal_pid_to_str (PID)
|
||
extern char *normal_pid_to_str PARAMS ((int pid));
|
||
#endif
|
||
|
||
#ifndef target_tid_to_str
|
||
#define target_tid_to_str(PID) \
|
||
normal_pid_to_str (PID)
|
||
extern char *normal_pid_to_str PARAMS ((int pid));
|
||
#endif
|
||
|
||
|
||
#ifndef target_new_objfile
|
||
#define target_new_objfile(OBJFILE)
|
||
#endif
|
||
|
||
#ifndef target_pid_or_tid_to_str
|
||
#define target_pid_or_tid_to_str(ID) \
|
||
normal_pid_to_str (ID)
|
||
#endif
|
||
|
||
/* Attempts to find the pathname of the executable file
|
||
that was run to create a specified process.
|
||
|
||
The process PID must be stopped when this operation is used.
|
||
|
||
If the executable file cannot be determined, NULL is returned.
|
||
|
||
Else, a pointer to a character string containing the pathname
|
||
is returned. This string should be copied into a buffer by
|
||
the client if the string will not be immediately used, or if
|
||
it must persist.
|
||
*/
|
||
|
||
#define target_pid_to_exec_file(pid) \
|
||
(current_target.to_pid_to_exec_file) (pid)
|
||
|
||
/* Hook to call target-dependant code after reading in a new symbol table. */
|
||
|
||
#ifndef TARGET_SYMFILE_POSTREAD
|
||
#define TARGET_SYMFILE_POSTREAD(OBJFILE)
|
||
#endif
|
||
|
||
/* Hook to call target dependant code just after inferior target process has
|
||
started. */
|
||
|
||
#ifndef TARGET_CREATE_INFERIOR_HOOK
|
||
#define TARGET_CREATE_INFERIOR_HOOK(PID)
|
||
#endif
|
||
|
||
/* Hardware watchpoint interfaces. */
|
||
|
||
/* Returns non-zero if we were stopped by a hardware watchpoint (memory read or
|
||
write). */
|
||
|
||
#ifndef STOPPED_BY_WATCHPOINT
|
||
#define STOPPED_BY_WATCHPOINT(w) 0
|
||
#endif
|
||
|
||
/* HP-UX supplies these operations, which respectively disable and enable
|
||
the memory page-protections that are used to implement hardware watchpoints
|
||
on that platform. See wait_for_inferior's use of these.
|
||
*/
|
||
#if !defined(TARGET_DISABLE_HW_WATCHPOINTS)
|
||
#define TARGET_DISABLE_HW_WATCHPOINTS(pid)
|
||
#endif
|
||
|
||
#if !defined(TARGET_ENABLE_HW_WATCHPOINTS)
|
||
#define TARGET_ENABLE_HW_WATCHPOINTS(pid)
|
||
#endif
|
||
|
||
/* Provide defaults for systems that don't support hardware watchpoints. */
|
||
|
||
#ifndef TARGET_HAS_HARDWARE_WATCHPOINTS
|
||
|
||
/* Returns non-zero if we can set a hardware watchpoint of type TYPE. TYPE is
|
||
one of bp_hardware_watchpoint, bp_read_watchpoint, bp_write_watchpoint, or
|
||
bp_hardware_breakpoint. CNT is the number of such watchpoints used so far
|
||
(including this one?). OTHERTYPE is who knows what... */
|
||
|
||
#define TARGET_CAN_USE_HARDWARE_WATCHPOINT(TYPE,CNT,OTHERTYPE) 0
|
||
|
||
#if !defined(TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT)
|
||
#define TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT(byte_count) \
|
||
(LONGEST)(byte_count) <= REGISTER_SIZE
|
||
#endif
|
||
|
||
/* However, some addresses may not be profitable to use hardware to watch,
|
||
or may be difficult to understand when the addressed object is out of
|
||
scope, and hence should be unwatched. On some targets, this may have
|
||
severe performance penalties, such that we might as well use regular
|
||
watchpoints, and save (possibly precious) hardware watchpoints for other
|
||
locations.
|
||
*/
|
||
#if !defined(TARGET_RANGE_PROFITABLE_FOR_HW_WATCHPOINT)
|
||
#define TARGET_RANGE_PROFITABLE_FOR_HW_WATCHPOINT(pid,start,len) 0
|
||
#endif
|
||
|
||
|
||
/* Set/clear a hardware watchpoint starting at ADDR, for LEN bytes. TYPE is 0
|
||
for write, 1 for read, and 2 for read/write accesses. Returns 0 for
|
||
success, non-zero for failure. */
|
||
|
||
#define target_remove_watchpoint(ADDR,LEN,TYPE) -1
|
||
#define target_insert_watchpoint(ADDR,LEN,TYPE) -1
|
||
|
||
#endif /* TARGET_HAS_HARDWARE_WATCHPOINTS */
|
||
|
||
#ifndef target_insert_hw_breakpoint
|
||
#define target_remove_hw_breakpoint(ADDR,SHADOW) -1
|
||
#define target_insert_hw_breakpoint(ADDR,SHADOW) -1
|
||
#endif
|
||
|
||
#ifndef target_stopped_data_address
|
||
#define target_stopped_data_address() 0
|
||
#endif
|
||
|
||
/* If defined, then we need to decr pc by this much after a hardware break-
|
||
point. Presumably this overrides DECR_PC_AFTER_BREAK... */
|
||
|
||
#ifndef DECR_PC_AFTER_HW_BREAK
|
||
#define DECR_PC_AFTER_HW_BREAK 0
|
||
#endif
|
||
|
||
/* Sometimes gdb may pick up what appears to be a valid target address
|
||
from a minimal symbol, but the value really means, essentially,
|
||
"This is an index into a table which is populated when the inferior
|
||
is run. Therefore, do not attempt to use this as a PC."
|
||
*/
|
||
#if !defined(PC_REQUIRES_RUN_BEFORE_USE)
|
||
#define PC_REQUIRES_RUN_BEFORE_USE(pc) (0)
|
||
#endif
|
||
|
||
/* This will only be defined by a target that supports catching vfork events,
|
||
such as HP-UX.
|
||
|
||
On some targets (such as HP-UX 10.20 and earlier), resuming a newly vforked
|
||
child process after it has exec'd, causes the parent process to resume as
|
||
well. To prevent the parent from running spontaneously, such targets should
|
||
define this to a function that prevents that from happening.
|
||
*/
|
||
#if !defined(ENSURE_VFORKING_PARENT_REMAINS_STOPPED)
|
||
#define ENSURE_VFORKING_PARENT_REMAINS_STOPPED(PID) (0)
|
||
#endif
|
||
|
||
/* This will only be defined by a target that supports catching vfork events,
|
||
such as HP-UX.
|
||
|
||
On some targets (such as HP-UX 10.20 and earlier), a newly vforked child
|
||
process must be resumed when it delivers its exec event, before the parent
|
||
vfork event will be delivered to us.
|
||
*/
|
||
#if !defined(RESUME_EXECD_VFORKING_CHILD_TO_GET_PARENT_VFORK)
|
||
#define RESUME_EXECD_VFORKING_CHILD_TO_GET_PARENT_VFORK() (0)
|
||
#endif
|
||
|
||
/* Routines for maintenance of the target structures...
|
||
|
||
add_target: Add a target to the list of all possible targets.
|
||
|
||
push_target: Make this target the top of the stack of currently used
|
||
targets, within its particular stratum of the stack. Result
|
||
is 0 if now atop the stack, nonzero if not on top (maybe
|
||
should warn user).
|
||
|
||
unpush_target: Remove this from the stack of currently used targets,
|
||
no matter where it is on the list. Returns 0 if no
|
||
change, 1 if removed from stack.
|
||
|
||
pop_target: Remove the top thing on the stack of current targets. */
|
||
|
||
extern void
|
||
add_target PARAMS ((struct target_ops *));
|
||
|
||
extern int
|
||
push_target PARAMS ((struct target_ops *));
|
||
|
||
extern int
|
||
unpush_target PARAMS ((struct target_ops *));
|
||
|
||
extern void
|
||
target_preopen PARAMS ((int));
|
||
|
||
extern void
|
||
pop_target PARAMS ((void));
|
||
|
||
/* Struct section_table maps address ranges to file sections. It is
|
||
mostly used with BFD files, but can be used without (e.g. for handling
|
||
raw disks, or files not in formats handled by BFD). */
|
||
|
||
struct section_table {
|
||
CORE_ADDR addr; /* Lowest address in section */
|
||
CORE_ADDR endaddr; /* 1+highest address in section */
|
||
|
||
sec_ptr the_bfd_section;
|
||
|
||
bfd *bfd; /* BFD file pointer */
|
||
};
|
||
|
||
/* Builds a section table, given args BFD, SECTABLE_PTR, SECEND_PTR.
|
||
Returns 0 if OK, 1 on error. */
|
||
|
||
extern int
|
||
build_section_table PARAMS ((bfd *, struct section_table **,
|
||
struct section_table **));
|
||
|
||
/* From mem-break.c */
|
||
|
||
extern int memory_remove_breakpoint PARAMS ((CORE_ADDR, char *));
|
||
|
||
extern int memory_insert_breakpoint PARAMS ((CORE_ADDR, char *));
|
||
|
||
extern breakpoint_from_pc_fn memory_breakpoint_from_pc;
|
||
#ifndef BREAKPOINT_FROM_PC
|
||
#define BREAKPOINT_FROM_PC(pcptr, lenptr) memory_breakpoint_from_pc (pcptr, lenptr)
|
||
#endif
|
||
|
||
|
||
/* From target.c */
|
||
|
||
extern void
|
||
initialize_targets PARAMS ((void));
|
||
|
||
extern void
|
||
noprocess PARAMS ((void));
|
||
|
||
extern void
|
||
find_default_attach PARAMS ((char *, int));
|
||
|
||
void
|
||
find_default_require_attach PARAMS ((char *, int));
|
||
|
||
void
|
||
find_default_require_detach PARAMS ((int, char *, int));
|
||
|
||
extern void
|
||
find_default_create_inferior PARAMS ((char *, char *, char **));
|
||
|
||
void
|
||
find_default_clone_and_follow_inferior PARAMS ((int, int *));
|
||
|
||
extern struct target_ops *find_run_target PARAMS ((void));
|
||
|
||
extern struct target_ops *
|
||
find_core_target PARAMS ((void));
|
||
|
||
/* Stuff that should be shared among the various remote targets. */
|
||
|
||
/* Debugging level. 0 is off, and non-zero values mean to print some debug
|
||
information (higher values, more information). */
|
||
extern int remote_debug;
|
||
|
||
/* Speed in bits per second, or -1 which means don't mess with the speed. */
|
||
extern int baud_rate;
|
||
/* Timeout limit for response from target. */
|
||
extern int remote_timeout;
|
||
|
||
extern asection *target_memory_bfd_section;
|
||
|
||
/* Functions for helping to write a native target. */
|
||
|
||
/* This is for native targets which use a unix/POSIX-style waitstatus. */
|
||
extern void store_waitstatus PARAMS ((struct target_waitstatus *, int));
|
||
|
||
/* Convert between host signal numbers and enum target_signal's. */
|
||
extern enum target_signal target_signal_from_host PARAMS ((int));
|
||
extern int target_signal_to_host PARAMS ((enum target_signal));
|
||
|
||
/* Convert from a number used in a GDB command to an enum target_signal. */
|
||
extern enum target_signal target_signal_from_command PARAMS ((int));
|
||
|
||
/* Any target can call this to switch to remote protocol (in remote.c). */
|
||
extern void push_remote_target PARAMS ((char *name, int from_tty));
|
||
|
||
/* Imported from machine dependent code */
|
||
|
||
#ifndef SOFTWARE_SINGLE_STEP_P
|
||
#define SOFTWARE_SINGLE_STEP_P 0
|
||
#define SOFTWARE_SINGLE_STEP(sig,bp_p) abort ()
|
||
#endif /* SOFTWARE_SINGLE_STEP_P */
|
||
|
||
/* Blank target vector entries are initialized to target_ignore. */
|
||
void target_ignore PARAMS ((void));
|
||
|
||
/* Macro for getting target's idea of a frame pointer.
|
||
FIXME: GDB's whole scheme for dealing with "frames" and
|
||
"frame pointers" needs a serious shakedown. */
|
||
#ifndef TARGET_VIRTUAL_FRAME_POINTER
|
||
#define TARGET_VIRTUAL_FRAME_POINTER(ADDR, REGP, OFFP) \
|
||
do { *(REGP) = FP_REGNUM; *(OFFP) = 0; } while (0)
|
||
#endif /* TARGET_VIRTUAL_FRAME_POINTER */
|
||
|
||
#endif /* !defined (TARGET_H) */
|