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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/target.c
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
Diffstat (limited to 'gdb/target.c')
-rw-r--r--gdb/target.c2630
1 files changed, 0 insertions, 2630 deletions
diff --git a/gdb/target.c b/gdb/target.c
deleted file mode 100644
index 4d9f3e9..0000000
--- a/gdb/target.c
+++ /dev/null
@@ -1,2630 +0,0 @@
-/* Select target systems and architectures at runtime for GDB.
- Copyright 1990, 1992, 1993, 1994, 1995, 1998 Free Software Foundation, Inc.
- Contributed by Cygnus Support.
-
-This file is part of GDB.
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include <errno.h>
-#include <ctype.h>
-#include "gdb_string.h"
-#include "target.h"
-#include "gdbcmd.h"
-#include "symtab.h"
-#include "inferior.h"
-#include "bfd.h"
-#include "symfile.h"
-#include "objfiles.h"
-#include "wait.h"
-#include <signal.h>
-
-extern int errno;
-
-static void
-target_info PARAMS ((char *, int));
-
-static void
-cleanup_target PARAMS ((struct target_ops *));
-
-static void
-maybe_kill_then_create_inferior PARAMS ((char *, char *, char **));
-
-static void
-default_clone_and_follow_inferior PARAMS ((int, int *));
-
-static void
-maybe_kill_then_attach PARAMS ((char *, int));
-
-static void
-kill_or_be_killed PARAMS ((int));
-
-static void
-default_terminal_info PARAMS ((char *, int));
-
-static int
-nosymbol PARAMS ((char *, CORE_ADDR *));
-
-static void
-tcomplain PARAMS ((void));
-
-static int
-nomemory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
-
-static int
-return_zero PARAMS ((void));
-
-static int
-return_one PARAMS ((void));
-
-void
-target_ignore PARAMS ((void));
-
-static void
-target_command PARAMS ((char *, int));
-
-static struct target_ops *
-find_default_run_target PARAMS ((char *));
-
-static void
-update_current_target PARAMS ((void));
-
-/* Transfer LEN bytes between target address MEMADDR and GDB address MYADDR.
- Returns 0 for success, errno code for failure (which includes partial
- transfers--if you want a more useful response to partial transfers, try
- target_read_memory_partial). */
-
-static int
-target_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, int len,
- int write, asection *bfd_section));
-
-static void
-debug_to_open PARAMS ((char *, int));
-
-static void
-debug_to_close PARAMS ((int));
-
-static void
-debug_to_attach PARAMS ((char *, int));
-
-static void
-debug_to_detach PARAMS ((char *, int));
-
-static void
-debug_to_resume PARAMS ((int, int, enum target_signal));
-
-static int
-debug_to_wait PARAMS ((int, struct target_waitstatus *));
-
-static void
-debug_to_fetch_registers PARAMS ((int));
-
-static void
-debug_to_store_registers PARAMS ((int));
-
-static void
-debug_to_prepare_to_store PARAMS ((void));
-
-static int
-debug_to_xfer_memory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
-
-static void
-debug_to_files_info PARAMS ((struct target_ops *));
-
-static int
-debug_to_insert_breakpoint PARAMS ((CORE_ADDR, char *));
-
-static int
-debug_to_remove_breakpoint PARAMS ((CORE_ADDR, char *));
-
-static void
-debug_to_terminal_init PARAMS ((void));
-
-static void
-debug_to_terminal_inferior PARAMS ((void));
-
-static void
-debug_to_terminal_ours_for_output PARAMS ((void));
-
-static void
-debug_to_terminal_ours PARAMS ((void));
-
-static void
-debug_to_terminal_info PARAMS ((char *, int));
-
-static void
-debug_to_kill PARAMS ((void));
-
-static void
-debug_to_load PARAMS ((char *, int));
-
-static int
-debug_to_lookup_symbol PARAMS ((char *, CORE_ADDR *));
-
-static void
-debug_to_create_inferior PARAMS ((char *, char *, char **));
-
-static void
-debug_to_mourn_inferior PARAMS ((void));
-
-static int
-debug_to_can_run PARAMS ((void));
-
-static void
-debug_to_notice_signals PARAMS ((int));
-
-static int
-debug_to_thread_alive PARAMS ((int));
-
-static void
-debug_to_stop PARAMS ((void));
-
-static int
-debug_to_query PARAMS ((char, char *, char *, int *));
-
-/* Pointer to array of target architecture structures; the size of the
- array; the current index into the array; the allocated size of the
- array. */
-struct target_ops **target_structs;
-unsigned target_struct_size;
-unsigned target_struct_index;
-unsigned target_struct_allocsize;
-#define DEFAULT_ALLOCSIZE 10
-
-/* The initial current target, so that there is always a semi-valid
- current target. */
-
-struct target_ops dummy_target = {
- "None", /* to_shortname */
- "None", /* to_longname */
- "", /* to_doc */
- 0, /* to_open */
- 0, /* to_close */
- find_default_attach, /* to_attach */
- NULL, /* to_post_attach */
- find_default_require_attach, /* to_require_attach */
- 0, /* to_detach */
- find_default_require_detach, /* to_require_detach */
- 0, /* to_resume */
- 0, /* to_wait */
- NULL, /* to_post_wait */
- 0, /* to_fetch_registers */
- 0, /* to_store_registers */
- 0, /* to_prepare_to_store */
- 0, /* to_xfer_memory */
- 0, /* to_files_info */
- 0, /* to_insert_breakpoint */
- 0, /* to_remove_breakpoint */
- 0, /* to_terminal_init */
- 0, /* to_terminal_inferior */
- 0, /* to_terminal_ours_for_output */
- 0, /* to_terminal_ours */
- 0, /* to_terminal_info */
- 0, /* to_kill */
- 0, /* to_load */
- 0, /* to_lookup_symbol */
- find_default_create_inferior, /* to_create_inferior */
- NULL, /* to_post_startup_inferior */
- NULL, /* to_acknowledge_created_inferior */
- find_default_clone_and_follow_inferior, /* to_clone_and_follow_inferior */
- NULL, /* to_post_follow_inferior_by_clone */
- NULL, /* to_insert_fork_catchpoint */
- NULL, /* to_remove_fork_catchpoint */
- NULL, /* to_insert_vfork_catchpoint */
- NULL, /* to_remove_vfork_catchpoint */
- NULL, /* to_has_forked */
- NULL, /* to_has_vforked */
- NULL, /* to_can_follow_vfork_prior_to_exec */
- NULL, /* to_post_follow_vfork */
- NULL, /* to_insert_exec_catchpoint */
- NULL, /* to_remove_exec_catchpoint */
- NULL, /* to_has_execd */
- NULL, /* to_reported_exec_events_per_exec_call */
- NULL, /* to_has_syscall_event */
- NULL, /* to_has_exited */
- 0, /* to_mourn_inferior */
- 0, /* to_can_run */
- 0, /* to_notice_signals */
- 0, /* to_thread_alive */
- 0, /* to_stop */
- 0, /* to_query */
- NULL, /* to_enable_exception_callback */
- NULL, /* to_get_current_exception_event */
- NULL, /* to_pid_to_exec_file */
- NULL, /* to_core_file_to_sym_file */
- dummy_stratum, /* to_stratum */
- 0, /* to_next */
- 0, /* to_has_all_memory */
- 0, /* to_has_memory */
- 0, /* to_has_stack */
- 0, /* to_has_registers */
- 0, /* to_has_execution */
- tc_none, /* to_has_thread_control */
- 0, /* to_sections */
- 0, /* to_sections_end */
- OPS_MAGIC, /* to_magic */
-};
-
-/* Top of target stack. */
-
-struct target_stack_item *target_stack;
-
-/* The target structure we are currently using to talk to a process
- or file or whatever "inferior" we have. */
-
-struct target_ops current_target;
-
-/* Command list for target. */
-
-static struct cmd_list_element *targetlist = NULL;
-
-/* Nonzero if we are debugging an attached outside process
- rather than an inferior. */
-
-int attach_flag;
-
-#ifdef MAINTENANCE_CMDS
-/* Non-zero if we want to see trace of target level stuff. */
-
-static int targetdebug = 0;
-
-static void setup_target_debug PARAMS ((void));
-
-#endif
-
-/* The user just typed 'target' without the name of a target. */
-
-/* ARGSUSED */
-static void
-target_command (arg, from_tty)
- char *arg;
- int from_tty;
-{
- fputs_filtered ("Argument required (target name). Try `help target'\n",
- gdb_stdout);
-}
-
-/* Add a possible target architecture to the list. */
-
-void
-add_target (t)
- struct target_ops *t;
-{
- if (!target_structs)
- {
- target_struct_allocsize = DEFAULT_ALLOCSIZE;
- target_structs = (struct target_ops **) xmalloc
- (target_struct_allocsize * sizeof (*target_structs));
- }
- if (target_struct_size >= target_struct_allocsize)
- {
- target_struct_allocsize *= 2;
- target_structs = (struct target_ops **)
- xrealloc ((char *) target_structs,
- target_struct_allocsize * sizeof (*target_structs));
- }
- target_structs[target_struct_size++] = t;
-/* cleanup_target (t);*/
-
- if (targetlist == NULL)
- add_prefix_cmd ("target", class_run, target_command,
- "Connect to a target machine or process.\n\
-The first argument is the type or protocol of the target machine.\n\
-Remaining arguments are interpreted by the target protocol. For more\n\
-information on the arguments for a particular protocol, type\n\
-`help target ' followed by the protocol name.",
- &targetlist, "target ", 0, &cmdlist);
- add_cmd (t->to_shortname, no_class, t->to_open, t->to_doc, &targetlist);
-}
-
-/* Stub functions */
-
-void
-target_ignore ()
-{
-}
-
-/* ARGSUSED */
-static int
-nomemory (memaddr, myaddr, len, write, t)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- struct target_ops *t;
-{
- errno = EIO; /* Can't read/write this location */
- return 0; /* No bytes handled */
-}
-
-static void
-tcomplain ()
-{
- error ("You can't do that when your target is `%s'",
- current_target.to_shortname);
-}
-
-void
-noprocess ()
-{
- error ("You can't do that without a process to debug.");
-}
-
-/* ARGSUSED */
-static int
-nosymbol (name, addrp)
- char *name;
- CORE_ADDR *addrp;
-{
- return 1; /* Symbol does not exist in target env */
-}
-
-/* ARGSUSED */
-void
-nosupport_runtime ()
-{
- if (!inferior_pid)
- noprocess ();
- else
- error ("No run-time support for this");
-}
-
-
-/* ARGSUSED */
-static void
-default_terminal_info (args, from_tty)
- char *args;
- int from_tty;
-{
- printf_unfiltered("No saved terminal information.\n");
-}
-
-/* This is the default target_create_inferior and target_attach function.
- If the current target is executing, it asks whether to kill it off.
- If this function returns without calling error(), it has killed off
- the target, and the operation should be attempted. */
-
-static void
-kill_or_be_killed (from_tty)
- int from_tty;
-{
- if (target_has_execution)
- {
- printf_unfiltered ("You are already running a program:\n");
- target_files_info ();
- if (query ("Kill it? ")) {
- target_kill ();
- if (target_has_execution)
- error ("Killing the program did not help.");
- return;
- } else {
- error ("Program not killed.");
- }
- }
- tcomplain();
-}
-
-static void
-maybe_kill_then_attach (args, from_tty)
- char *args;
- int from_tty;
-{
- kill_or_be_killed (from_tty);
- target_attach (args, from_tty);
-}
-
-static void
-maybe_kill_then_create_inferior (exec, args, env)
- char *exec;
- char *args;
- char **env;
-{
- kill_or_be_killed (0);
- target_create_inferior (exec, args, env);
-}
-
-static void
-default_clone_and_follow_inferior (child_pid, followed_child)
- int child_pid;
- int *followed_child;
-{
- target_clone_and_follow_inferior (child_pid, followed_child);
-}
-
-/* Clean up a target struct so it no longer has any zero pointers in it.
- We default entries, at least to stubs that print error messages. */
-
-static void
-cleanup_target (t)
- struct target_ops *t;
-{
-
-#define de_fault(field, value) \
- if (!t->field) t->field = value
-
- /* FIELD DEFAULT VALUE */
-
- de_fault (to_open, (void (*) PARAMS((char *, int))) tcomplain);
- de_fault (to_close, (void (*) PARAMS((int))) target_ignore);
- de_fault (to_attach, maybe_kill_then_attach);
- de_fault (to_post_attach, (void (*) PARAMS ((int))) target_ignore);
- de_fault (to_require_attach, maybe_kill_then_attach);
- de_fault (to_detach, (void (*) PARAMS((char *, int))) target_ignore);
- de_fault (to_require_detach, (void (*) PARAMS((int, char *, int))) target_ignore);
- de_fault (to_resume, (void (*) PARAMS((int, int, enum target_signal))) noprocess);
- de_fault (to_wait, (int (*) PARAMS((int, struct target_waitstatus *))) noprocess);
- de_fault (to_post_wait, (void (*) PARAMS ((int, int))) target_ignore);
- de_fault (to_fetch_registers, (void (*) PARAMS((int))) target_ignore);
- de_fault (to_store_registers, (void (*) PARAMS((int))) noprocess);
- de_fault (to_prepare_to_store, (void (*) PARAMS((void))) noprocess);
- de_fault (to_xfer_memory, (int (*) PARAMS((CORE_ADDR, char *, int, int, struct target_ops *))) nomemory);
- de_fault (to_files_info, (void (*) PARAMS((struct target_ops *))) target_ignore);
- de_fault (to_insert_breakpoint, memory_insert_breakpoint);
- de_fault (to_remove_breakpoint, memory_remove_breakpoint);
- de_fault (to_terminal_init, (void (*) PARAMS((void))) target_ignore);
- de_fault (to_terminal_inferior, (void (*) PARAMS ((void))) target_ignore);
- de_fault (to_terminal_ours_for_output,(void (*) PARAMS ((void))) target_ignore);
- de_fault (to_terminal_ours, (void (*) PARAMS ((void))) target_ignore);
- de_fault (to_terminal_info, default_terminal_info);
- de_fault (to_kill, (void (*) PARAMS((void))) noprocess);
- de_fault (to_load, (void (*) PARAMS((char *, int))) tcomplain);
- de_fault (to_lookup_symbol, (int (*) PARAMS ((char *, CORE_ADDR *))) nosymbol);
- de_fault (to_create_inferior, maybe_kill_then_create_inferior);
- de_fault (to_post_startup_inferior, (void (*) PARAMS ((int))) target_ignore);
- de_fault (to_acknowledge_created_inferior, (void (*) PARAMS((int))) target_ignore);
- de_fault (to_clone_and_follow_inferior, default_clone_and_follow_inferior);
- de_fault (to_post_follow_inferior_by_clone, (void (*) PARAMS ((void))) target_ignore);
- de_fault (to_insert_fork_catchpoint, (int (*) PARAMS ((int))) tcomplain);
- de_fault (to_remove_fork_catchpoint, (int (*) PARAMS ((int))) tcomplain);
- de_fault (to_insert_vfork_catchpoint, (int (*) PARAMS ((int))) tcomplain);
- de_fault (to_remove_vfork_catchpoint, (int (*) PARAMS ((int))) tcomplain);
- de_fault (to_has_forked, (int (*) PARAMS ((int, int *))) return_zero);
- de_fault (to_has_vforked, (int (*) PARAMS ((int, int *))) return_zero);
- de_fault (to_can_follow_vfork_prior_to_exec, (int (*) PARAMS ((void ))) return_zero);
- de_fault (to_post_follow_vfork, (void (*) PARAMS ((int, int, int, int))) target_ignore);
- de_fault (to_insert_exec_catchpoint, (int (*) PARAMS ((int))) tcomplain);
- de_fault (to_remove_exec_catchpoint, (int (*) PARAMS ((int))) tcomplain);
- de_fault (to_has_execd, (int (*) PARAMS ((int, char **))) return_zero);
- de_fault (to_reported_exec_events_per_exec_call, (int (*) PARAMS ((void))) return_one);
- de_fault (to_has_syscall_event, (int (*) PARAMS ((int, enum target_waitkind *, int *))) return_zero);
- de_fault (to_has_exited, (int (*) PARAMS ((int, int, int *))) return_zero);
- de_fault (to_mourn_inferior, (void (*) PARAMS ((void))) noprocess);
- de_fault (to_can_run, return_zero);
- de_fault (to_notice_signals, (void (*) PARAMS((int))) target_ignore);
- de_fault (to_thread_alive, (int (*) PARAMS((int))) target_ignore);
- de_fault (to_stop, (void (*) PARAMS((void))) target_ignore);
- de_fault (to_query, (int (*) PARAMS((char, char*, char *, int *))) target_ignore);
- de_fault (to_enable_exception_callback, (struct symtab_and_line * (*) PARAMS((enum exception_event_kind, int))) nosupport_runtime);
- de_fault (to_get_current_exception_event, (struct exception_event_record * (*) PARAMS((void))) nosupport_runtime);
-
- de_fault (to_pid_to_exec_file, (char* (*) PARAMS((int))) return_zero);
- de_fault (to_core_file_to_sym_file, (char* (*) PARAMS ((char *))) return_zero);
-#undef de_fault
-}
-
-/* Go through the target stack from top to bottom, copying over zero entries in
- current_target. In effect, we are doing class inheritance through the
- pushed target vectors. */
-
-static void
-update_current_target ()
-{
- struct target_stack_item *item;
- struct target_ops *t;
-
- /* First, reset current_target */
- memset (&current_target, 0, sizeof current_target);
-
- for (item = target_stack; item; item = item->next)
- {
- t = item->target_ops;
-
-#define INHERIT(FIELD, TARGET) \
- if (!current_target.FIELD) \
- current_target.FIELD = TARGET->FIELD
-
- INHERIT (to_shortname, t);
- INHERIT (to_longname, t);
- INHERIT (to_doc, t);
- INHERIT (to_open, t);
- INHERIT (to_close, t);
- INHERIT (to_attach, t);
- INHERIT (to_post_attach, t);
- INHERIT (to_require_attach, t);
- INHERIT (to_detach, t);
- INHERIT (to_require_detach, t);
- INHERIT (to_resume, t);
- INHERIT (to_wait, t);
- INHERIT (to_post_wait, t);
- INHERIT (to_fetch_registers, t);
- INHERIT (to_store_registers, t);
- INHERIT (to_prepare_to_store, t);
- INHERIT (to_xfer_memory, t);
- INHERIT (to_files_info, t);
- INHERIT (to_insert_breakpoint, t);
- INHERIT (to_remove_breakpoint, t);
- INHERIT (to_terminal_init, t);
- INHERIT (to_terminal_inferior, t);
- INHERIT (to_terminal_ours_for_output, t);
- INHERIT (to_terminal_ours, t);
- INHERIT (to_terminal_info, t);
- INHERIT (to_kill, t);
- INHERIT (to_load, t);
- INHERIT (to_lookup_symbol, t);
- INHERIT (to_create_inferior, t);
- INHERIT (to_post_startup_inferior, t);
- INHERIT (to_acknowledge_created_inferior, t);
- INHERIT (to_clone_and_follow_inferior, t);
- INHERIT (to_post_follow_inferior_by_clone, t);
- INHERIT (to_insert_fork_catchpoint, t);
- INHERIT (to_remove_fork_catchpoint, t);
- INHERIT (to_insert_vfork_catchpoint, t);
- INHERIT (to_remove_vfork_catchpoint, t);
- INHERIT (to_has_forked, t);
- INHERIT (to_has_vforked, t);
- INHERIT (to_can_follow_vfork_prior_to_exec, t);
- INHERIT (to_post_follow_vfork, t);
- INHERIT (to_insert_exec_catchpoint, t);
- INHERIT (to_remove_exec_catchpoint, t);
- INHERIT (to_has_execd, t);
- INHERIT (to_reported_exec_events_per_exec_call, t);
- INHERIT (to_has_syscall_event, t);
- INHERIT (to_has_exited, t);
- INHERIT (to_mourn_inferior, t);
- INHERIT (to_can_run, t);
- INHERIT (to_notice_signals, t);
- INHERIT (to_thread_alive, t);
- INHERIT (to_stop, t);
- INHERIT (to_query, t);
- INHERIT (to_enable_exception_callback, t);
- INHERIT (to_get_current_exception_event, t);
- INHERIT (to_pid_to_exec_file, t);
- INHERIT (to_core_file_to_sym_file, t);
- INHERIT (to_stratum, t);
- INHERIT (DONT_USE, t);
- INHERIT (to_has_all_memory, t);
- INHERIT (to_has_memory, t);
- INHERIT (to_has_stack, t);
- INHERIT (to_has_registers, t);
- INHERIT (to_has_execution, t);
- INHERIT (to_has_thread_control, t);
- INHERIT (to_sections, t);
- INHERIT (to_sections_end, t);
- INHERIT (to_magic, t);
-
-#undef INHERIT
- }
-}
-
-/* Push a new target type into the stack of the existing target accessors,
- possibly superseding some of the existing accessors.
-
- Result is zero if the pushed target ended up on top of the stack,
- nonzero if at least one target is on top of it.
-
- Rather than allow an empty stack, we always have the dummy target at
- the bottom stratum, so we can call the function vectors without
- checking them. */
-
-int
-push_target (t)
- struct target_ops *t;
-{
- struct target_stack_item *cur, *prev, *tmp;
-
- /* Check magic number. If wrong, it probably means someone changed
- the struct definition, but not all the places that initialize one. */
- if (t->to_magic != OPS_MAGIC)
- {
- fprintf_unfiltered(gdb_stderr,
- "Magic number of %s target struct wrong\n",
- t->to_shortname);
- abort();
- }
-
- /* Find the proper stratum to install this target in. */
-
- for (prev = NULL, cur = target_stack; cur; prev = cur, cur = cur->next)
- {
- if ((int)(t->to_stratum) >= (int)(cur->target_ops->to_stratum))
- break;
- }
-
- /* If there's already targets at this stratum, remove them. */
-
- if (cur)
- while (t->to_stratum == cur->target_ops->to_stratum)
- {
- /* There's already something on this stratum. Close it off. */
- if (cur->target_ops->to_close)
- (cur->target_ops->to_close) (0);
- if (prev)
- prev->next = cur->next; /* Unchain old target_ops */
- else
- target_stack = cur->next; /* Unchain first on list */
- tmp = cur->next;
- free (cur);
- cur = tmp;
- }
-
- /* We have removed all targets in our stratum, now add the new one. */
-
- tmp = (struct target_stack_item *)
- xmalloc (sizeof (struct target_stack_item));
- tmp->next = cur;
- tmp->target_ops = t;
-
- if (prev)
- prev->next = tmp;
- else
- target_stack = tmp;
-
- update_current_target ();
-
- cleanup_target (&current_target); /* Fill in the gaps */
-
-#ifdef MAINTENANCE_CMDS
- if (targetdebug)
- setup_target_debug ();
-#endif
-
- return prev != 0;
-}
-
-/* Remove a target_ops vector from the stack, wherever it may be.
- Return how many times it was removed (0 or 1). */
-
-int
-unpush_target (t)
- struct target_ops *t;
-{
- struct target_stack_item *cur, *prev;
-
- if (t->to_close)
- t->to_close (0); /* Let it clean up */
-
- /* Look for the specified target. Note that we assume that a target
- can only occur once in the target stack. */
-
- for (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next)
- if (cur->target_ops == t)
- break;
-
- if (!cur)
- return 0; /* Didn't find target_ops, quit now */
-
- /* Unchain the target */
-
- if (!prev)
- target_stack = cur->next;
- else
- prev->next = cur->next;
-
- free (cur); /* Release the target_stack_item */
-
- update_current_target ();
- cleanup_target (&current_target);
-
- return 1;
-}
-
-void
-pop_target ()
-{
- (current_target.to_close)(0); /* Let it clean up */
- if (unpush_target (target_stack->target_ops) == 1)
- return;
-
- fprintf_unfiltered(gdb_stderr,
- "pop_target couldn't find target %s\n",
- current_target.to_shortname);
- abort();
-}
-
-#undef MIN
-#define MIN(A, B) (((A) <= (B)) ? (A) : (B))
-
-/* target_read_string -- read a null terminated string, up to LEN bytes,
- from MEMADDR in target. Set *ERRNOP to the errno code, or 0 if successful.
- Set *STRING to a pointer to malloc'd memory containing the data; the caller
- is responsible for freeing it. Return the number of bytes successfully
- read. */
-
-int
-target_read_string (memaddr, string, len, errnop)
- CORE_ADDR memaddr;
- char **string;
- int len;
- int *errnop;
-{
- int tlen, origlen, offset, i;
- char buf[4];
- int errcode = 0;
- char *buffer;
- int buffer_allocated;
- char *bufptr;
- unsigned int nbytes_read = 0;
-
- /* Small for testing. */
- buffer_allocated = 4;
- buffer = xmalloc (buffer_allocated);
- bufptr = buffer;
-
- origlen = len;
-
- while (len > 0)
- {
- tlen = MIN (len, 4 - (memaddr & 3));
- offset = memaddr & 3;
-
- errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0, NULL);
- if (errcode != 0)
- {
- /* The transfer request might have crossed the boundary to an
- unallocated region of memory. Retry the transfer, requesting
- a single byte. */
- tlen = 1;
- offset = 0;
- errcode = target_xfer_memory (memaddr, buf, 1, 0, NULL);
- if (errcode != 0)
- goto done;
- }
-
- if (bufptr - buffer + tlen > buffer_allocated)
- {
- unsigned int bytes;
- bytes = bufptr - buffer;
- buffer_allocated *= 2;
- buffer = xrealloc (buffer, buffer_allocated);
- bufptr = buffer + bytes;
- }
-
- for (i = 0; i < tlen; i++)
- {
- *bufptr++ = buf[i + offset];
- if (buf[i + offset] == '\000')
- {
- nbytes_read += i + 1;
- goto done;
- }
- }
-
- memaddr += tlen;
- len -= tlen;
- nbytes_read += tlen;
- }
- done:
- if (errnop != NULL)
- *errnop = errcode;
- if (string != NULL)
- *string = buffer;
- return nbytes_read;
-}
-
-/* Read LEN bytes of target memory at address MEMADDR, placing the results in
- GDB's memory at MYADDR. Returns either 0 for success or an errno value
- if any error occurs.
-
- If an error occurs, no guarantee is made about the contents of the data at
- MYADDR. In particular, the caller should not depend upon partial reads
- filling the buffer with good data. There is no way for the caller to know
- how much good data might have been transfered anyway. Callers that can
- deal with partial reads should call target_read_memory_partial. */
-
-int
-target_read_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
-{
- return target_xfer_memory (memaddr, myaddr, len, 0, NULL);
-}
-
-int
-target_read_memory_section (memaddr, myaddr, len, bfd_section)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- asection *bfd_section;
-{
- return target_xfer_memory (memaddr, myaddr, len, 0, bfd_section);
-}
-
-/* Read LEN bytes of target memory at address MEMADDR, placing the results
- in GDB's memory at MYADDR. Returns a count of the bytes actually read,
- and optionally an errno value in the location pointed to by ERRNOPTR
- if ERRNOPTR is non-null. */
-
-int
-target_read_memory_partial (memaddr, myaddr, len, errnoptr)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int *errnoptr;
-{
- int nread; /* Number of bytes actually read. */
- int errcode; /* Error from last read. */
-
- /* First try a complete read. */
- errcode = target_xfer_memory (memaddr, myaddr, len, 0, NULL);
- if (errcode == 0)
- {
- /* Got it all. */
- nread = len;
- }
- else
- {
- /* Loop, reading one byte at a time until we get as much as we can. */
- for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
- {
- errcode = target_xfer_memory (memaddr++, myaddr++, 1, 0, NULL);
- }
- /* If an error, the last read was unsuccessful, so adjust count. */
- if (errcode != 0)
- {
- nread--;
- }
- }
- if (errnoptr != NULL)
- {
- *errnoptr = errcode;
- }
- return (nread);
-}
-
-int
-target_write_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
-{
- return target_xfer_memory (memaddr, myaddr, len, 1, NULL);
-}
-
-/* This variable is used to pass section information down to targets. This
- *should* be done by adding an argument to the target_xfer_memory function
- of all the targets, but I didn't feel like changing 50+ files. */
-
-asection *target_memory_bfd_section = NULL;
-
-/* Move memory to or from the targets. Iterate until all of it has
- been moved, if necessary. The top target gets priority; anything
- it doesn't want, is offered to the next one down, etc. Note the
- business with curlen: if an early target says "no, but I have a
- boundary overlapping this xfer" then we shorten what we offer to
- the subsequent targets so the early guy will get a chance at the
- tail before the subsequent ones do.
-
- Result is 0 or errno value. */
-
-static int
-target_xfer_memory (memaddr, myaddr, len, write, bfd_section)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- asection *bfd_section;
-{
- int curlen;
- int res;
- struct target_ops *t;
- struct target_stack_item *item;
-
- /* Zero length requests are ok and require no work. */
- if (len == 0)
- return 0;
-
- target_memory_bfd_section = bfd_section;
-
- /* to_xfer_memory is not guaranteed to set errno, even when it returns
- 0. */
- errno = 0;
-
- /* The quick case is that the top target does it all. */
- res = current_target.to_xfer_memory
- (memaddr, myaddr, len, write, &current_target);
- if (res == len)
- return 0;
-
- if (res > 0)
- goto bump;
- /* If res <= 0 then we call it again in the loop. Ah well. */
-
- for (; len > 0;)
- {
- curlen = len; /* Want to do it all */
- for (item = target_stack; item; item = item->next)
- {
- t = item->target_ops;
- if (!t->to_has_memory)
- continue;
-
- res = t->to_xfer_memory (memaddr, myaddr, curlen, write, t);
- if (res > 0)
- break; /* Handled all or part of xfer */
- if (t->to_has_all_memory)
- break;
- }
-
- if (res <= 0)
- {
- /* If this address is for nonexistent memory,
- read zeros if reading, or do nothing if writing. Return error. */
- if (!write)
- memset (myaddr, 0, len);
- if (errno == 0)
- return EIO;
- else
- return errno;
- }
-bump:
- memaddr += res;
- myaddr += res;
- len -= res;
- }
- return 0; /* We managed to cover it all somehow. */
-}
-
-
-/* ARGSUSED */
-static void
-target_info (args, from_tty)
- char *args;
- int from_tty;
-{
- struct target_ops *t;
- struct target_stack_item *item;
- int has_all_mem = 0;
-
- if (symfile_objfile != NULL)
- printf_unfiltered ("Symbols from \"%s\".\n", symfile_objfile->name);
-
-#ifdef FILES_INFO_HOOK
- if (FILES_INFO_HOOK ())
- return;
-#endif
-
- for (item = target_stack; item; item = item->next)
- {
- t = item->target_ops;
-
- if (!t->to_has_memory)
- continue;
-
- if ((int)(t->to_stratum) <= (int)dummy_stratum)
- continue;
- if (has_all_mem)
- printf_unfiltered("\tWhile running this, GDB does not access memory from...\n");
- printf_unfiltered("%s:\n", t->to_longname);
- (t->to_files_info)(t);
- has_all_mem = t->to_has_all_memory;
- }
-}
-
-/* This is to be called by the open routine before it does
- anything. */
-
-void
-target_preopen (from_tty)
- int from_tty;
-{
- dont_repeat();
-
- if (target_has_execution)
- {
- if (query ("A program is being debugged already. Kill it? "))
- target_kill ();
- else
- error ("Program not killed.");
- }
-
- /* Calling target_kill may remove the target from the stack. But if
- it doesn't (which seems like a win for UDI), remove it now. */
-
- if (target_has_execution)
- pop_target ();
-}
-
-/* Detach a target after doing deferred register stores. */
-
-void
-target_detach (args, from_tty)
- char *args;
- int from_tty;
-{
- /* Handle any optimized stores to the inferior. */
-#ifdef DO_DEFERRED_STORES
- DO_DEFERRED_STORES;
-#endif
- (current_target.to_detach) (args, from_tty);
-}
-
-void
-target_link (modname, t_reloc)
- char *modname;
- CORE_ADDR *t_reloc;
-{
- if (STREQ(current_target.to_shortname, "rombug"))
- {
- (current_target.to_lookup_symbol) (modname, t_reloc);
- if (*t_reloc == 0)
- error("Unable to link to %s and get relocation in rombug", modname);
- }
- else
- *t_reloc = (CORE_ADDR)-1;
-}
-
-/* Look through the list of possible targets for a target that can
- execute a run or attach command without any other data. This is
- used to locate the default process stratum.
-
- Result is always valid (error() is called for errors). */
-
-static struct target_ops *
-find_default_run_target (do_mesg)
- char *do_mesg;
-{
- struct target_ops **t;
- struct target_ops *runable = NULL;
- int count;
-
- count = 0;
-
- for (t = target_structs; t < target_structs + target_struct_size;
- ++t)
- {
- if ((*t)->to_can_run && target_can_run(*t))
- {
- runable = *t;
- ++count;
- }
- }
-
- if (count != 1)
- error ("Don't know how to %s. Try \"help target\".", do_mesg);
-
- return runable;
-}
-
-void
-find_default_attach (args, from_tty)
- char *args;
- int from_tty;
-{
- struct target_ops *t;
-
- t = find_default_run_target("attach");
- (t->to_attach) (args, from_tty);
- return;
-}
-
-void
-find_default_require_attach (args, from_tty)
- char *args;
- int from_tty;
-{
- struct target_ops *t;
-
- t = find_default_run_target("require_attach");
- (t->to_require_attach) (args, from_tty);
- return;
-}
-
-void
-find_default_require_detach (pid, args, from_tty)
- int pid;
- char * args;
- int from_tty;
-{
- struct target_ops *t;
-
- t = find_default_run_target("require_detach");
- (t->to_require_detach) (pid, args, from_tty);
- return;
-}
-
-void
-find_default_create_inferior (exec_file, allargs, env)
- char *exec_file;
- char *allargs;
- char **env;
-{
- struct target_ops *t;
-
- t = find_default_run_target("run");
- (t->to_create_inferior) (exec_file, allargs, env);
- return;
-}
-
-void
-find_default_clone_and_follow_inferior (child_pid, followed_child)
- int child_pid;
- int *followed_child;
-{
- struct target_ops *t;
-
- t = find_default_run_target("run");
- (t->to_clone_and_follow_inferior) (child_pid, followed_child);
- return;
-}
-
-static int
-return_zero ()
-{
- return 0;
-}
-
-static int
-return_one ()
-{
- return 1;
-}
-
-struct target_ops *
-find_core_target ()
-{
- struct target_ops **t;
- struct target_ops *runable = NULL;
- int count;
-
- count = 0;
-
- for (t = target_structs; t < target_structs + target_struct_size;
- ++t)
- {
- if ((*t)->to_stratum == core_stratum)
- {
- runable = *t;
- ++count;
- }
- }
-
- return(count == 1 ? runable : NULL);
-}
-
-/* The inferior process has died. Long live the inferior! */
-
-void
-generic_mourn_inferior ()
-{
- extern int show_breakpoint_hit_counts;
-
- inferior_pid = 0;
- attach_flag = 0;
- breakpoint_init_inferior (inf_exited);
- registers_changed ();
-
-#ifdef CLEAR_DEFERRED_STORES
- /* Delete any pending stores to the inferior... */
- CLEAR_DEFERRED_STORES;
-#endif
-
- reopen_exec_file ();
- reinit_frame_cache ();
-
- /* It is confusing to the user for ignore counts to stick around
- from previous runs of the inferior. So clear them. */
- /* However, it is more confusing for the ignore counts to disappear when
- using hit counts. So don't clear them if we're counting hits. */
- if (!show_breakpoint_hit_counts)
- breakpoint_clear_ignore_counts ();
-}
-
-/* This table must match in order and size the signals in enum target_signal
- in target.h. */
-static struct {
- char *name;
- char *string;
- } signals [] =
-{
- {"0", "Signal 0"},
- {"SIGHUP", "Hangup"},
- {"SIGINT", "Interrupt"},
- {"SIGQUIT", "Quit"},
- {"SIGILL", "Illegal instruction"},
- {"SIGTRAP", "Trace/breakpoint trap"},
- {"SIGABRT", "Aborted"},
- {"SIGEMT", "Emulation trap"},
- {"SIGFPE", "Arithmetic exception"},
- {"SIGKILL", "Killed"},
- {"SIGBUS", "Bus error"},
- {"SIGSEGV", "Segmentation fault"},
- {"SIGSYS", "Bad system call"},
- {"SIGPIPE", "Broken pipe"},
- {"SIGALRM", "Alarm clock"},
- {"SIGTERM", "Terminated"},
- {"SIGURG", "Urgent I/O condition"},
- {"SIGSTOP", "Stopped (signal)"},
- {"SIGTSTP", "Stopped (user)"},
- {"SIGCONT", "Continued"},
- {"SIGCHLD", "Child status changed"},
- {"SIGTTIN", "Stopped (tty input)"},
- {"SIGTTOU", "Stopped (tty output)"},
- {"SIGIO", "I/O possible"},
- {"SIGXCPU", "CPU time limit exceeded"},
- {"SIGXFSZ", "File size limit exceeded"},
- {"SIGVTALRM", "Virtual timer expired"},
- {"SIGPROF", "Profiling timer expired"},
- {"SIGWINCH", "Window size changed"},
- {"SIGLOST", "Resource lost"},
- {"SIGUSR1", "User defined signal 1"},
- {"SIGUSR2", "User defined signal 2"},
- {"SIGPWR", "Power fail/restart"},
- {"SIGPOLL", "Pollable event occurred"},
- {"SIGWIND", "SIGWIND"},
- {"SIGPHONE", "SIGPHONE"},
- {"SIGWAITING", "Process's LWPs are blocked"},
- {"SIGLWP", "Signal LWP"},
- {"SIGDANGER", "Swap space dangerously low"},
- {"SIGGRANT", "Monitor mode granted"},
- {"SIGRETRACT", "Need to relinquish monitor mode"},
- {"SIGMSG", "Monitor mode data available"},
- {"SIGSOUND", "Sound completed"},
- {"SIGSAK", "Secure attention"},
- {"SIGPRIO", "SIGPRIO"},
- {"SIG33", "Real-time event 33"},
- {"SIG34", "Real-time event 34"},
- {"SIG35", "Real-time event 35"},
- {"SIG36", "Real-time event 36"},
- {"SIG37", "Real-time event 37"},
- {"SIG38", "Real-time event 38"},
- {"SIG39", "Real-time event 39"},
- {"SIG40", "Real-time event 40"},
- {"SIG41", "Real-time event 41"},
- {"SIG42", "Real-time event 42"},
- {"SIG43", "Real-time event 43"},
- {"SIG44", "Real-time event 44"},
- {"SIG45", "Real-time event 45"},
- {"SIG46", "Real-time event 46"},
- {"SIG47", "Real-time event 47"},
- {"SIG48", "Real-time event 48"},
- {"SIG49", "Real-time event 49"},
- {"SIG50", "Real-time event 50"},
- {"SIG51", "Real-time event 51"},
- {"SIG52", "Real-time event 52"},
- {"SIG53", "Real-time event 53"},
- {"SIG54", "Real-time event 54"},
- {"SIG55", "Real-time event 55"},
- {"SIG56", "Real-time event 56"},
- {"SIG57", "Real-time event 57"},
- {"SIG58", "Real-time event 58"},
- {"SIG59", "Real-time event 59"},
- {"SIG60", "Real-time event 60"},
- {"SIG61", "Real-time event 61"},
- {"SIG62", "Real-time event 62"},
- {"SIG63", "Real-time event 63"},
-
-#if defined(MACH) || defined(__MACH__)
- /* Mach exceptions */
- {"EXC_BAD_ACCESS", "Could not access memory"},
- {"EXC_BAD_INSTRUCTION", "Illegal instruction/operand"},
- {"EXC_ARITHMETIC", "Arithmetic exception"},
- {"EXC_EMULATION", "Emulation instruction"},
- {"EXC_SOFTWARE", "Software generated exception"},
- {"EXC_BREAKPOINT", "Breakpoint"},
-#endif
- {NULL, "Unknown signal"},
- {NULL, "Internal error: printing TARGET_SIGNAL_DEFAULT"},
-
- /* Last entry, used to check whether the table is the right size. */
- {NULL, "TARGET_SIGNAL_MAGIC"}
-};
-
-/* Return the string for a signal. */
-char *
-target_signal_to_string (sig)
- enum target_signal sig;
-{
- return signals[sig].string;
-}
-
-/* Return the name for a signal. */
-char *
-target_signal_to_name (sig)
- enum target_signal sig;
-{
- if (sig == TARGET_SIGNAL_UNKNOWN)
- /* I think the code which prints this will always print it along with
- the string, so no need to be verbose. */
- return "?";
- return signals[sig].name;
-}
-
-/* Given a name, return its signal. */
-enum target_signal
-target_signal_from_name (name)
- char *name;
-{
- enum target_signal sig;
-
- /* It's possible we also should allow "SIGCLD" as well as "SIGCHLD"
- for TARGET_SIGNAL_SIGCHLD. SIGIOT, on the other hand, is more
- questionable; seems like by now people should call it SIGABRT
- instead. */
-
- /* This ugly cast brought to you by the native VAX compiler. */
- for (sig = TARGET_SIGNAL_HUP;
- signals[sig].name != NULL;
- sig = (enum target_signal)((int)sig + 1))
- if (STREQ (name, signals[sig].name))
- return sig;
- return TARGET_SIGNAL_UNKNOWN;
-}
-
-/* The following functions are to help certain targets deal
- with the signal/waitstatus stuff. They could just as well be in
- a file called native-utils.c or unixwaitstatus-utils.c or whatever. */
-
-/* Convert host signal to our signals. */
-enum target_signal
-target_signal_from_host (hostsig)
- int hostsig;
-{
- /* A switch statement would make sense but would require special kludges
- to deal with the cases where more than one signal has the same number. */
-
- if (hostsig == 0) return TARGET_SIGNAL_0;
-
-#if defined (SIGHUP)
- if (hostsig == SIGHUP) return TARGET_SIGNAL_HUP;
-#endif
-#if defined (SIGINT)
- if (hostsig == SIGINT) return TARGET_SIGNAL_INT;
-#endif
-#if defined (SIGQUIT)
- if (hostsig == SIGQUIT) return TARGET_SIGNAL_QUIT;
-#endif
-#if defined (SIGILL)
- if (hostsig == SIGILL) return TARGET_SIGNAL_ILL;
-#endif
-#if defined (SIGTRAP)
- if (hostsig == SIGTRAP) return TARGET_SIGNAL_TRAP;
-#endif
-#if defined (SIGABRT)
- if (hostsig == SIGABRT) return TARGET_SIGNAL_ABRT;
-#endif
-#if defined (SIGEMT)
- if (hostsig == SIGEMT) return TARGET_SIGNAL_EMT;
-#endif
-#if defined (SIGFPE)
- if (hostsig == SIGFPE) return TARGET_SIGNAL_FPE;
-#endif
-#if defined (SIGKILL)
- if (hostsig == SIGKILL) return TARGET_SIGNAL_KILL;
-#endif
-#if defined (SIGBUS)
- if (hostsig == SIGBUS) return TARGET_SIGNAL_BUS;
-#endif
-#if defined (SIGSEGV)
- if (hostsig == SIGSEGV) return TARGET_SIGNAL_SEGV;
-#endif
-#if defined (SIGSYS)
- if (hostsig == SIGSYS) return TARGET_SIGNAL_SYS;
-#endif
-#if defined (SIGPIPE)
- if (hostsig == SIGPIPE) return TARGET_SIGNAL_PIPE;
-#endif
-#if defined (SIGALRM)
- if (hostsig == SIGALRM) return TARGET_SIGNAL_ALRM;
-#endif
-#if defined (SIGTERM)
- if (hostsig == SIGTERM) return TARGET_SIGNAL_TERM;
-#endif
-#if defined (SIGUSR1)
- if (hostsig == SIGUSR1) return TARGET_SIGNAL_USR1;
-#endif
-#if defined (SIGUSR2)
- if (hostsig == SIGUSR2) return TARGET_SIGNAL_USR2;
-#endif
-#if defined (SIGCLD)
- if (hostsig == SIGCLD) return TARGET_SIGNAL_CHLD;
-#endif
-#if defined (SIGCHLD)
- if (hostsig == SIGCHLD) return TARGET_SIGNAL_CHLD;
-#endif
-#if defined (SIGPWR)
- if (hostsig == SIGPWR) return TARGET_SIGNAL_PWR;
-#endif
-#if defined (SIGWINCH)
- if (hostsig == SIGWINCH) return TARGET_SIGNAL_WINCH;
-#endif
-#if defined (SIGURG)
- if (hostsig == SIGURG) return TARGET_SIGNAL_URG;
-#endif
-#if defined (SIGIO)
- if (hostsig == SIGIO) return TARGET_SIGNAL_IO;
-#endif
-#if defined (SIGPOLL)
- if (hostsig == SIGPOLL) return TARGET_SIGNAL_POLL;
-#endif
-#if defined (SIGSTOP)
- if (hostsig == SIGSTOP) return TARGET_SIGNAL_STOP;
-#endif
-#if defined (SIGTSTP)
- if (hostsig == SIGTSTP) return TARGET_SIGNAL_TSTP;
-#endif
-#if defined (SIGCONT)
- if (hostsig == SIGCONT) return TARGET_SIGNAL_CONT;
-#endif
-#if defined (SIGTTIN)
- if (hostsig == SIGTTIN) return TARGET_SIGNAL_TTIN;
-#endif
-#if defined (SIGTTOU)
- if (hostsig == SIGTTOU) return TARGET_SIGNAL_TTOU;
-#endif
-#if defined (SIGVTALRM)
- if (hostsig == SIGVTALRM) return TARGET_SIGNAL_VTALRM;
-#endif
-#if defined (SIGPROF)
- if (hostsig == SIGPROF) return TARGET_SIGNAL_PROF;
-#endif
-#if defined (SIGXCPU)
- if (hostsig == SIGXCPU) return TARGET_SIGNAL_XCPU;
-#endif
-#if defined (SIGXFSZ)
- if (hostsig == SIGXFSZ) return TARGET_SIGNAL_XFSZ;
-#endif
-#if defined (SIGWIND)
- if (hostsig == SIGWIND) return TARGET_SIGNAL_WIND;
-#endif
-#if defined (SIGPHONE)
- if (hostsig == SIGPHONE) return TARGET_SIGNAL_PHONE;
-#endif
-#if defined (SIGLOST)
- if (hostsig == SIGLOST) return TARGET_SIGNAL_LOST;
-#endif
-#if defined (SIGWAITING)
- if (hostsig == SIGWAITING) return TARGET_SIGNAL_WAITING;
-#endif
-#if defined (SIGLWP)
- if (hostsig == SIGLWP) return TARGET_SIGNAL_LWP;
-#endif
-#if defined (SIGDANGER)
- if (hostsig == SIGDANGER) return TARGET_SIGNAL_DANGER;
-#endif
-#if defined (SIGGRANT)
- if (hostsig == SIGGRANT) return TARGET_SIGNAL_GRANT;
-#endif
-#if defined (SIGRETRACT)
- if (hostsig == SIGRETRACT) return TARGET_SIGNAL_RETRACT;
-#endif
-#if defined (SIGMSG)
- if (hostsig == SIGMSG) return TARGET_SIGNAL_MSG;
-#endif
-#if defined (SIGSOUND)
- if (hostsig == SIGSOUND) return TARGET_SIGNAL_SOUND;
-#endif
-#if defined (SIGSAK)
- if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK;
-#endif
-#if defined (SIGPRIO)
- if (hostsig == SIGPRIO) return TARGET_SIGNAL_PRIO;
-#endif
-
- /* Mach exceptions. Assumes that the values for EXC_ are positive! */
-#if defined (EXC_BAD_ACCESS) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_BAD_ACCESS) return TARGET_EXC_BAD_ACCESS;
-#endif
-#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_BAD_INSTRUCTION) return TARGET_EXC_BAD_INSTRUCTION;
-#endif
-#if defined (EXC_ARITHMETIC) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_ARITHMETIC) return TARGET_EXC_ARITHMETIC;
-#endif
-#if defined (EXC_EMULATION) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_EMULATION) return TARGET_EXC_EMULATION;
-#endif
-#if defined (EXC_SOFTWARE) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_SOFTWARE) return TARGET_EXC_SOFTWARE;
-#endif
-#if defined (EXC_BREAKPOINT) && defined (_NSIG)
- if (hostsig == _NSIG + EXC_BREAKPOINT) return TARGET_EXC_BREAKPOINT;
-#endif
-
-#if defined (REALTIME_LO)
- if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
- return (enum target_signal)
- (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
-#endif
- return TARGET_SIGNAL_UNKNOWN;
-}
-
-int
-target_signal_to_host (oursig)
- enum target_signal oursig;
-{
- switch (oursig)
- {
- case TARGET_SIGNAL_0: return 0;
-
-#if defined (SIGHUP)
- case TARGET_SIGNAL_HUP: return SIGHUP;
-#endif
-#if defined (SIGINT)
- case TARGET_SIGNAL_INT: return SIGINT;
-#endif
-#if defined (SIGQUIT)
- case TARGET_SIGNAL_QUIT: return SIGQUIT;
-#endif
-#if defined (SIGILL)
- case TARGET_SIGNAL_ILL: return SIGILL;
-#endif
-#if defined (SIGTRAP)
- case TARGET_SIGNAL_TRAP: return SIGTRAP;
-#endif
-#if defined (SIGABRT)
- case TARGET_SIGNAL_ABRT: return SIGABRT;
-#endif
-#if defined (SIGEMT)
- case TARGET_SIGNAL_EMT: return SIGEMT;
-#endif
-#if defined (SIGFPE)
- case TARGET_SIGNAL_FPE: return SIGFPE;
-#endif
-#if defined (SIGKILL)
- case TARGET_SIGNAL_KILL: return SIGKILL;
-#endif
-#if defined (SIGBUS)
- case TARGET_SIGNAL_BUS: return SIGBUS;
-#endif
-#if defined (SIGSEGV)
- case TARGET_SIGNAL_SEGV: return SIGSEGV;
-#endif
-#if defined (SIGSYS)
- case TARGET_SIGNAL_SYS: return SIGSYS;
-#endif
-#if defined (SIGPIPE)
- case TARGET_SIGNAL_PIPE: return SIGPIPE;
-#endif
-#if defined (SIGALRM)
- case TARGET_SIGNAL_ALRM: return SIGALRM;
-#endif
-#if defined (SIGTERM)
- case TARGET_SIGNAL_TERM: return SIGTERM;
-#endif
-#if defined (SIGUSR1)
- case TARGET_SIGNAL_USR1: return SIGUSR1;
-#endif
-#if defined (SIGUSR2)
- case TARGET_SIGNAL_USR2: return SIGUSR2;
-#endif
-#if defined (SIGCHLD) || defined (SIGCLD)
- case TARGET_SIGNAL_CHLD:
-#if defined (SIGCHLD)
- return SIGCHLD;
-#else
- return SIGCLD;
-#endif
-#endif /* SIGCLD or SIGCHLD */
-#if defined (SIGPWR)
- case TARGET_SIGNAL_PWR: return SIGPWR;
-#endif
-#if defined (SIGWINCH)
- case TARGET_SIGNAL_WINCH: return SIGWINCH;
-#endif
-#if defined (SIGURG)
- case TARGET_SIGNAL_URG: return SIGURG;
-#endif
-#if defined (SIGIO)
- case TARGET_SIGNAL_IO: return SIGIO;
-#endif
-#if defined (SIGPOLL)
- case TARGET_SIGNAL_POLL: return SIGPOLL;
-#endif
-#if defined (SIGSTOP)
- case TARGET_SIGNAL_STOP: return SIGSTOP;
-#endif
-#if defined (SIGTSTP)
- case TARGET_SIGNAL_TSTP: return SIGTSTP;
-#endif
-#if defined (SIGCONT)
- case TARGET_SIGNAL_CONT: return SIGCONT;
-#endif
-#if defined (SIGTTIN)
- case TARGET_SIGNAL_TTIN: return SIGTTIN;
-#endif
-#if defined (SIGTTOU)
- case TARGET_SIGNAL_TTOU: return SIGTTOU;
-#endif
-#if defined (SIGVTALRM)
- case TARGET_SIGNAL_VTALRM: return SIGVTALRM;
-#endif
-#if defined (SIGPROF)
- case TARGET_SIGNAL_PROF: return SIGPROF;
-#endif
-#if defined (SIGXCPU)
- case TARGET_SIGNAL_XCPU: return SIGXCPU;
-#endif
-#if defined (SIGXFSZ)
- case TARGET_SIGNAL_XFSZ: return SIGXFSZ;
-#endif
-#if defined (SIGWIND)
- case TARGET_SIGNAL_WIND: return SIGWIND;
-#endif
-#if defined (SIGPHONE)
- case TARGET_SIGNAL_PHONE: return SIGPHONE;
-#endif
-#if defined (SIGLOST)
- case TARGET_SIGNAL_LOST: return SIGLOST;
-#endif
-#if defined (SIGWAITING)
- case TARGET_SIGNAL_WAITING: return SIGWAITING;
-#endif
-#if defined (SIGLWP)
- case TARGET_SIGNAL_LWP: return SIGLWP;
-#endif
-#if defined (SIGDANGER)
- case TARGET_SIGNAL_DANGER: return SIGDANGER;
-#endif
-#if defined (SIGGRANT)
- case TARGET_SIGNAL_GRANT: return SIGGRANT;
-#endif
-#if defined (SIGRETRACT)
- case TARGET_SIGNAL_RETRACT: return SIGRETRACT;
-#endif
-#if defined (SIGMSG)
- case TARGET_SIGNAL_MSG: return SIGMSG;
-#endif
-#if defined (SIGSOUND)
- case TARGET_SIGNAL_SOUND: return SIGSOUND;
-#endif
-#if defined (SIGSAK)
- case TARGET_SIGNAL_SAK: return SIGSAK;
-#endif
-#if defined (SIGPRIO)
- case TARGET_SIGNAL_PRIO: return SIGPRIO;
-#endif
-
- /* Mach exceptions. Assumes that the values for EXC_ are positive! */
-#if defined (EXC_BAD_ACCESS) && defined (_NSIG)
- case TARGET_EXC_BAD_ACCESS: return _NSIG + EXC_BAD_ACCESS;
-#endif
-#if defined (EXC_BAD_INSTRUCTION) && defined (_NSIG)
- case TARGET_EXC_BAD_INSTRUCTION: return _NSIG + EXC_BAD_INSTRUCTION;
-#endif
-#if defined (EXC_ARITHMETIC) && defined (_NSIG)
- case TARGET_EXC_ARITHMETIC: return _NSIG + EXC_ARITHMETIC;
-#endif
-#if defined (EXC_EMULATION) && defined (_NSIG)
- case TARGET_EXC_EMULATION: return _NSIG + EXC_EMULATION;
-#endif
-#if defined (EXC_SOFTWARE) && defined (_NSIG)
- case TARGET_EXC_SOFTWARE: return _NSIG + EXC_SOFTWARE;
-#endif
-#if defined (EXC_BREAKPOINT) && defined (_NSIG)
- case TARGET_EXC_BREAKPOINT: return _NSIG + EXC_BREAKPOINT;
-#endif
-
- default:
-#if defined (REALTIME_LO)
- if (oursig >= TARGET_SIGNAL_REALTIME_33
- && oursig <= TARGET_SIGNAL_REALTIME_63)
- {
- int retsig =
- (int)oursig - (int)TARGET_SIGNAL_REALTIME_33 + REALTIME_LO;
- if (retsig < REALTIME_HI)
- return retsig;
- }
-#endif
- /* The user might be trying to do "signal SIGSAK" where this system
- doesn't have SIGSAK. */
- warning ("Signal %s does not exist on this system.\n",
- target_signal_to_name (oursig));
- return 0;
- }
-}
-
-/* Helper function for child_wait and the Lynx derivatives of child_wait.
- HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
- translation of that in OURSTATUS. */
-void
-store_waitstatus (ourstatus, hoststatus)
- struct target_waitstatus *ourstatus;
- int hoststatus;
-{
-#ifdef CHILD_SPECIAL_WAITSTATUS
- /* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
- if it wants to deal with hoststatus. */
- if (CHILD_SPECIAL_WAITSTATUS (ourstatus, hoststatus))
- return;
-#endif
-
- if (WIFEXITED (hoststatus))
- {
- ourstatus->kind = TARGET_WAITKIND_EXITED;
- ourstatus->value.integer = WEXITSTATUS (hoststatus);
- }
- else if (!WIFSTOPPED (hoststatus))
- {
- ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
- ourstatus->value.sig = target_signal_from_host (WTERMSIG (hoststatus));
- }
- else
- {
- ourstatus->kind = TARGET_WAITKIND_STOPPED;
- ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
- }
-}
-
-/* In some circumstances we allow a command to specify a numeric
- signal. The idea is to keep these circumstances limited so that
- users (and scripts) develop portable habits. For comparison,
- POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
- numeric signal at all is obscelescent. We are slightly more
- lenient and allow 1-15 which should match host signal numbers on
- most systems. Use of symbolic signal names is strongly encouraged. */
-
-enum target_signal
-target_signal_from_command (num)
- int num;
-{
- if (num >= 1 && num <= 15)
- return (enum target_signal)num;
- error ("Only signals 1-15 are valid as numeric signals.\n\
-Use \"info signals\" for a list of symbolic signals.");
-}
-
-/* Returns zero to leave the inferior alone, one to interrupt it. */
-int (*target_activity_function) PARAMS ((void));
-int target_activity_fd;
-
-/* Convert a normal process ID to a string. Returns the string in a static
- buffer. */
-
-char *
-normal_pid_to_str (pid)
- int pid;
-{
- static char buf[30];
-
- if (STREQ (current_target.to_shortname, "remote"))
- sprintf (buf, "thread %d\0", pid);
- else
- sprintf (buf, "process %d\0", pid);
-
- return buf;
-}
-
-/* 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.)
-
- This function is used by all targets that allow us to request
- notification of forks, etc at inferior creation time; e.g., in
- target_acknowledge_forked_child.
- */
-void
-normal_target_post_startup_inferior (pid)
- int pid;
-{
- /* This space intentionally left blank. */
-}
-
-
-#ifdef MAINTENANCE_CMDS
-static struct target_ops debug_target;
-
-static void
-debug_to_open (args, from_tty)
- char *args;
- int from_tty;
-{
- debug_target.to_open (args, from_tty);
-
- fprintf_unfiltered (gdb_stderr, "target_open (%s, %d)\n", args, from_tty);
-}
-
-static void
-debug_to_close (quitting)
- int quitting;
-{
- debug_target.to_close (quitting);
-
- fprintf_unfiltered (gdb_stderr, "target_close (%d)\n", quitting);
-}
-
-static void
-debug_to_attach (args, from_tty)
- char *args;
- int from_tty;
-{
- debug_target.to_attach (args, from_tty);
-
- fprintf_unfiltered (gdb_stderr, "target_attach (%s, %d)\n", args, from_tty);
-}
-
-
-static void
-debug_to_post_attach (pid)
- int pid;
-{
- debug_target.to_post_attach (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_post_attach (%d)\n", pid);
-}
-
-static void
-debug_to_require_attach (args, from_tty)
- char *args;
- int from_tty;
-{
- debug_target.to_require_attach (args, from_tty);
-
- fprintf_unfiltered (gdb_stderr,
- "target_require_attach (%s, %d)\n", args, from_tty);
-}
-
-static void
-debug_to_detach (args, from_tty)
- char *args;
- int from_tty;
-{
- debug_target.to_detach (args, from_tty);
-
- fprintf_unfiltered (gdb_stderr, "target_detach (%s, %d)\n", args, from_tty);
-}
-
-static void
-debug_to_require_detach (pid, args, from_tty)
- int pid;
- char * args;
- int from_tty;
-{
- debug_target.to_require_detach (pid, args, from_tty);
-
- fprintf_unfiltered (gdb_stderr,
- "target_require_detach (%d, %s, %d)\n", pid, args, from_tty);
-}
-
-static void
-debug_to_resume (pid, step, siggnal)
- int pid;
- int step;
- enum target_signal siggnal;
-{
- debug_target.to_resume (pid, step, siggnal);
-
- fprintf_unfiltered (gdb_stderr, "target_resume (%d, %s, %s)\n", pid,
- step ? "step" : "continue",
- target_signal_to_name (siggnal));
-}
-
-static int
-debug_to_wait (pid, status)
- int pid;
- struct target_waitstatus *status;
-{
- int retval;
-
- retval = debug_target.to_wait (pid, status);
-
- fprintf_unfiltered (gdb_stderr,
- "target_wait (%d, status) = %d, ", pid, retval);
- fprintf_unfiltered (gdb_stderr, "status->kind = ");
- switch (status->kind)
- {
- case TARGET_WAITKIND_EXITED:
- fprintf_unfiltered (gdb_stderr, "exited, status = %d\n",
- status->value.integer);
- break;
- case TARGET_WAITKIND_STOPPED:
- fprintf_unfiltered (gdb_stderr, "stopped, signal = %s\n",
- target_signal_to_name (status->value.sig));
- break;
- case TARGET_WAITKIND_SIGNALLED:
- fprintf_unfiltered (gdb_stderr, "signalled, signal = %s\n",
- target_signal_to_name (status->value.sig));
- break;
- case TARGET_WAITKIND_LOADED:
- fprintf_unfiltered (gdb_stderr, "loaded\n");
- break;
- case TARGET_WAITKIND_FORKED:
- fprintf_unfiltered (gdb_stderr, "forked\n");
- break;
- case TARGET_WAITKIND_VFORKED:
- fprintf_unfiltered (gdb_stderr, "vforked\n");
- break;
- case TARGET_WAITKIND_EXECD:
- fprintf_unfiltered (gdb_stderr, "execd\n");
- break;
- case TARGET_WAITKIND_SPURIOUS:
- fprintf_unfiltered (gdb_stderr, "spurious\n");
- break;
- default:
- fprintf_unfiltered (gdb_stderr, "unknown???\n");
- break;
- }
-
- return retval;
-}
-
-static void
-debug_to_post_wait (pid, status)
- int pid;
- int status;
-{
- debug_target.to_post_wait (pid, status);
-
- fprintf_unfiltered (gdb_stderr, "target_post_wait (%d, %d)\n",
- pid, status);
-}
-
-static void
-debug_to_fetch_registers (regno)
- int regno;
-{
- debug_target.to_fetch_registers (regno);
-
- fprintf_unfiltered (gdb_stderr, "target_fetch_registers (%s)",
- regno != -1 ? REGISTER_NAME (regno) : "-1");
- if (regno != -1)
- fprintf_unfiltered (gdb_stderr, " = 0x%x %d",
- (unsigned long) read_register (regno),
- read_register (regno));
- fprintf_unfiltered (gdb_stderr, "\n");
-}
-
-static void
-debug_to_store_registers (regno)
- int regno;
-{
- debug_target.to_store_registers (regno);
-
- if (regno >= 0 && regno < NUM_REGS)
- fprintf_unfiltered (gdb_stderr, "target_store_registers (%s) = 0x%x %d\n",
- REGISTER_NAME (regno),
- (unsigned long) read_register (regno),
- (unsigned long) read_register (regno));
- else
- fprintf_unfiltered (gdb_stderr, "target_store_registers (%d)\n", regno);
-}
-
-static void
-debug_to_prepare_to_store ()
-{
- debug_target.to_prepare_to_store ();
-
- fprintf_unfiltered (gdb_stderr, "target_prepare_to_store ()\n");
-}
-
-static int
-debug_to_xfer_memory (memaddr, myaddr, len, write, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- struct target_ops *target;
-{
- int retval;
-
- retval = debug_target.to_xfer_memory (memaddr, myaddr, len, write, target);
-
- fprintf_unfiltered (gdb_stderr,
- "target_xfer_memory (0x%x, xxx, %d, %s, xxx) = %d",
- (unsigned int) memaddr, /* possable truncate long long */
- len, write ? "write" : "read", retval);
-
-
-
- if (retval > 0)
- {
- int i;
-
- fputs_unfiltered (", bytes =", gdb_stderr);
- for (i = 0; i < retval; i++)
- {
- if ((((long) &(myaddr[i])) & 0xf) == 0)
- fprintf_unfiltered (gdb_stderr, "\n");
- fprintf_unfiltered (gdb_stderr, " %02x", myaddr[i] & 0xff);
- }
- }
-
- fputc_unfiltered ('\n', gdb_stderr);
-
- return retval;
-}
-
-static void
-debug_to_files_info (target)
- struct target_ops *target;
-{
- debug_target.to_files_info (target);
-
- fprintf_unfiltered (gdb_stderr, "target_files_info (xxx)\n");
-}
-
-static int
-debug_to_insert_breakpoint (addr, save)
- CORE_ADDR addr;
- char *save;
-{
- int retval;
-
- retval = debug_target.to_insert_breakpoint (addr, save);
-
- fprintf_unfiltered (gdb_stderr,
- "target_insert_breakpoint (0x%x, xxx) = %d\n",
- (unsigned long) addr, retval);
- return retval;
-}
-
-static int
-debug_to_remove_breakpoint (addr, save)
- CORE_ADDR addr;
- char *save;
-{
- int retval;
-
- retval = debug_target.to_remove_breakpoint (addr, save);
-
- fprintf_unfiltered (gdb_stderr,
- "target_remove_breakpoint (0x%x, xxx) = %d\n",
- (unsigned long)addr, retval);
- return retval;
-}
-
-static void
-debug_to_terminal_init ()
-{
- debug_target.to_terminal_init ();
-
- fprintf_unfiltered (gdb_stderr, "target_terminal_init ()\n");
-}
-
-static void
-debug_to_terminal_inferior ()
-{
- debug_target.to_terminal_inferior ();
-
- fprintf_unfiltered (gdb_stderr, "target_terminal_inferior ()\n");
-}
-
-static void
-debug_to_terminal_ours_for_output ()
-{
- debug_target.to_terminal_ours_for_output ();
-
- fprintf_unfiltered (gdb_stderr, "target_terminal_ours_for_output ()\n");
-}
-
-static void
-debug_to_terminal_ours ()
-{
- debug_target.to_terminal_ours ();
-
- fprintf_unfiltered (gdb_stderr, "target_terminal_ours ()\n");
-}
-
-static void
-debug_to_terminal_info (arg, from_tty)
- char *arg;
- int from_tty;
-{
- debug_target.to_terminal_info (arg, from_tty);
-
- fprintf_unfiltered (gdb_stderr, "target_terminal_info (%s, %d)\n", arg,
- from_tty);
-}
-
-static void
-debug_to_kill ()
-{
- debug_target.to_kill ();
-
- fprintf_unfiltered (gdb_stderr, "target_kill ()\n");
-}
-
-static void
-debug_to_load (args, from_tty)
- char *args;
- int from_tty;
-{
- debug_target.to_load (args, from_tty);
-
- fprintf_unfiltered (gdb_stderr, "target_load (%s, %d)\n", args, from_tty);
-}
-
-static int
-debug_to_lookup_symbol (name, addrp)
- char *name;
- CORE_ADDR *addrp;
-{
- int retval;
-
- retval = debug_target.to_lookup_symbol (name, addrp);
-
- fprintf_unfiltered (gdb_stderr, "target_lookup_symbol (%s, xxx)\n", name);
-
- return retval;
-}
-
-static void
-debug_to_create_inferior (exec_file, args, env)
- char *exec_file;
- char *args;
- char **env;
-{
- debug_target.to_create_inferior (exec_file, args, env);
-
- fprintf_unfiltered (gdb_stderr, "target_create_inferior (%s, %s, xxx)\n",
- exec_file, args);
-}
-
-static void
-debug_to_post_startup_inferior (pid)
- int pid;
-{
- debug_target.to_post_startup_inferior (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_post_startup_inferior (%d)\n",
- pid);
-}
-
-static void
-debug_to_acknowledge_created_inferior (pid)
- int pid;
-{
- debug_target.to_acknowledge_created_inferior (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_acknowledge_created_inferior (%d)\n",
- pid);
-}
-
-static void
-debug_to_clone_and_follow_inferior (child_pid, followed_child)
- int child_pid;
- int *followed_child;
-{
- debug_target.to_clone_and_follow_inferior (child_pid, followed_child);
-
- fprintf_unfiltered (gdb_stderr,
- "target_clone_and_follow_inferior (%d, %d)\n",
- child_pid, *followed_child);
-}
-
-static void
-debug_to_post_follow_inferior_by_clone ()
-{
- debug_target.to_post_follow_inferior_by_clone ();
-
- fprintf_unfiltered (gdb_stderr, "target_post_follow_inferior_by_clone ()\n");
-}
-
-static int
-debug_to_insert_fork_catchpoint (pid)
- int pid;
-{
- int retval;
-
- retval = debug_target.to_insert_fork_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_insert_fork_catchpoint (%d) = %d\n",
- pid, retval);
-
- return retval;
-}
-
-static int
-debug_to_remove_fork_catchpoint (pid)
- int pid;
-{
- int retval;
-
- retval = debug_target.to_remove_fork_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_remove_fork_catchpoint (%d) = %d\n",
- pid, retval);
-
- return retval;
-}
-
-static int
-debug_to_insert_vfork_catchpoint (pid)
- int pid;
-{
- int retval;
-
- retval = debug_target.to_insert_vfork_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_insert_vfork_catchpoint (%d)= %d\n",
- pid, retval);
-
- return retval;
-}
-
-static int
-debug_to_remove_vfork_catchpoint (pid)
- int pid;
-{
- int retval;
-
- retval = debug_target.to_remove_vfork_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_remove_vfork_catchpoint (%d) = %d\n",
- pid, retval);
-
- return retval;
-}
-
-static int
-debug_to_has_forked (pid, child_pid)
- int pid;
- int * child_pid;
-{
- int has_forked;
-
- has_forked = debug_target.to_has_forked (pid, child_pid);
-
- fprintf_unfiltered (gdb_stderr, "target_has_forked (%d, %d) = %d\n",
- pid, *child_pid, has_forked);
-
- return has_forked;
-}
-
-static int
-debug_to_has_vforked (pid, child_pid)
- int pid;
- int * child_pid;
-{
- int has_vforked;
-
- has_vforked = debug_target.to_has_vforked (pid, child_pid);
-
- fprintf_unfiltered (gdb_stderr, "target_has_vforked (%d, %d) = %d\n",
- pid, *child_pid, has_vforked);
-
- return has_vforked;
-}
-
-static int
-debug_to_can_follow_vfork_prior_to_exec ()
-{
- int can_immediately_follow_vfork;
-
- can_immediately_follow_vfork = debug_target.to_can_follow_vfork_prior_to_exec ();
-
- fprintf_unfiltered (gdb_stderr, "target_can_follow_vfork_prior_to_exec () = %d\n",
- can_immediately_follow_vfork);
-
- return can_immediately_follow_vfork;
-}
-
-static void
-debug_to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child)
- int parent_pid;
- int followed_parent;
- int child_pid;
- int followed_child;
-{
- debug_target.to_post_follow_vfork (parent_pid, followed_parent, child_pid, followed_child);
-
- fprintf_unfiltered (gdb_stderr,
- "target_post_follow_vfork (%d, %d, %d, %d)\n",
- parent_pid, followed_parent, child_pid, followed_child);
-}
-
-static int
-debug_to_insert_exec_catchpoint (pid)
- int pid;
-{
- int retval;
-
- retval = debug_target.to_insert_exec_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_insert_exec_catchpoint (%d) = %d\n",
- pid, retval);
-
- return retval;
-}
-
-static int
-debug_to_remove_exec_catchpoint (pid)
- int pid;
-{
- int retval;
-
- retval = debug_target.to_remove_exec_catchpoint (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_remove_exec_catchpoint (%d) = %d\n",
- pid, retval);
-
- return retval;
-}
-
-static int
-debug_to_has_execd (pid, execd_pathname)
- int pid;
- char ** execd_pathname;
-{
- int has_execd;
-
- has_execd = debug_target.to_has_execd (pid, execd_pathname);
-
- fprintf_unfiltered (gdb_stderr, "target_has_execd (%d, %s) = %d\n",
- pid, *execd_pathname, has_execd);
-
- return has_execd;
-}
-
-static int
-debug_to_reported_exec_events_per_exec_call ()
-{
- int reported_exec_events;
-
- reported_exec_events = debug_target.to_reported_exec_events_per_exec_call ();
-
- fprintf_unfiltered (gdb_stderr,
- "target_reported_exec_events_per_exec_call () = %d\n",
- reported_exec_events);
-
- return reported_exec_events;
-}
-
-static int
-debug_to_has_syscall_event (pid, kind, syscall_id)
- int pid;
- enum target_waitkind * kind;
- int * syscall_id;
-{
- int has_syscall_event;
- char * kind_spelling = "??";
-
- has_syscall_event = debug_target.to_has_syscall_event (pid, kind, syscall_id);
- if (has_syscall_event)
- {
- switch (*kind)
- {
- case TARGET_WAITKIND_SYSCALL_ENTRY:
- kind_spelling = "SYSCALL_ENTRY";
- break;
- case TARGET_WAITKIND_SYSCALL_RETURN:
- kind_spelling = "SYSCALL_RETURN";
- break;
- default:
- break;
- }
- }
-
- fprintf_unfiltered (gdb_stderr,
- "target_has_syscall_event (%d, %s, %d) = %d\n",
- pid, kind_spelling, *syscall_id, has_syscall_event);
-
- return has_syscall_event;
-}
-
-static int
-debug_to_has_exited (pid, wait_status, exit_status)
- int pid;
- int wait_status;
- int * exit_status;
-{
- int has_exited;
-
- has_exited = debug_target.to_has_exited (pid, wait_status, exit_status);
-
- fprintf_unfiltered (gdb_stderr, "target_has_exited (%d, %d, %d) = %d\n",
- pid, wait_status, *exit_status, has_exited);
-
- return has_exited;
-}
-
-static void
-debug_to_mourn_inferior ()
-{
- debug_target.to_mourn_inferior ();
-
- fprintf_unfiltered (gdb_stderr, "target_mourn_inferior ()\n");
-}
-
-static int
-debug_to_can_run ()
-{
- int retval;
-
- retval = debug_target.to_can_run ();
-
- fprintf_unfiltered (gdb_stderr, "target_can_run () = %d\n", retval);
-
- return retval;
-}
-
-static void
-debug_to_notice_signals (pid)
- int pid;
-{
- debug_target.to_notice_signals (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_notice_signals (%d)\n", pid);
-}
-
-static int
-debug_to_thread_alive (pid)
- int pid;
-{
- int retval;
-
- retval = debug_target.to_thread_alive (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_thread_alive (%d) = %d\n",
- pid, retval);
-
- return retval;
-}
-
-static void
-debug_to_stop ()
-{
- debug_target.to_stop ();
-
- fprintf_unfiltered (gdb_stderr, "target_stop ()\n");
-}
-
-static int
-debug_to_query (type, req, resp, siz)
- char type;
- char *req;
- char *resp;
- int *siz;
-{
- int retval;
-
- retval = debug_target.to_query (type, req, resp, siz);
-
- fprintf_unfiltered (gdb_stderr, "target_query (%c, %s, %s, %d) = %d\n", type, req, resp, *siz, retval);
-
- return retval;
-}
-
-static struct symtab_and_line *
-debug_to_enable_exception_callback (kind, enable)
- enum exception_event_kind kind;
- int enable;
-{
- debug_target.to_enable_exception_callback (kind, enable);
-
- fprintf_unfiltered (gdb_stderr,
- "target get_exception_callback_sal (%d, %d)\n",
- kind, enable);
-}
-
-static struct exception_event_record *
-debug_to_get_current_exception_event ()
-{
- debug_target.to_get_current_exception_event();
-
- fprintf_unfiltered (gdb_stderr, "target get_current_exception_event ()\n");
-}
-
-static char *
-debug_to_pid_to_exec_file (pid)
- int pid;
-{
- char * exec_file;
-
- exec_file = debug_target.to_pid_to_exec_file (pid);
-
- fprintf_unfiltered (gdb_stderr, "target_pid_to_exec_file (%d) = %s\n",
- pid, exec_file);
-
- return exec_file;
-}
-
-static char *
-debug_to_core_file_to_sym_file (core)
- char * core;
-{
- char * sym_file;
-
- sym_file = debug_target.to_core_file_to_sym_file (core);
-
- fprintf_unfiltered (gdb_stderr, "target_core_file_to_sym_file (%s) = %s\n",
- core, sym_file);
-
- return sym_file;
-}
-
-static void
-setup_target_debug ()
-{
- memcpy (&debug_target, &current_target, sizeof debug_target);
-
- current_target.to_open = debug_to_open;
- current_target.to_close = debug_to_close;
- current_target.to_attach = debug_to_attach;
- current_target.to_post_attach = debug_to_post_attach;
- current_target.to_require_attach = debug_to_require_attach;
- current_target.to_detach = debug_to_detach;
- current_target.to_require_detach = debug_to_require_detach;
- current_target.to_resume = debug_to_resume;
- current_target.to_wait = debug_to_wait;
- current_target.to_post_wait = debug_to_post_wait;
- current_target.to_fetch_registers = debug_to_fetch_registers;
- current_target.to_store_registers = debug_to_store_registers;
- current_target.to_prepare_to_store = debug_to_prepare_to_store;
- current_target.to_xfer_memory = debug_to_xfer_memory;
- current_target.to_files_info = debug_to_files_info;
- current_target.to_insert_breakpoint = debug_to_insert_breakpoint;
- current_target.to_remove_breakpoint = debug_to_remove_breakpoint;
- current_target.to_terminal_init = debug_to_terminal_init;
- current_target.to_terminal_inferior = debug_to_terminal_inferior;
- current_target.to_terminal_ours_for_output = debug_to_terminal_ours_for_output;
- current_target.to_terminal_ours = debug_to_terminal_ours;
- current_target.to_terminal_info = debug_to_terminal_info;
- current_target.to_kill = debug_to_kill;
- current_target.to_load = debug_to_load;
- current_target.to_lookup_symbol = debug_to_lookup_symbol;
- current_target.to_create_inferior = debug_to_create_inferior;
- current_target.to_post_startup_inferior = debug_to_post_startup_inferior;
- current_target.to_acknowledge_created_inferior = debug_to_acknowledge_created_inferior;
- current_target.to_clone_and_follow_inferior = debug_to_clone_and_follow_inferior;
- current_target.to_post_follow_inferior_by_clone = debug_to_post_follow_inferior_by_clone;
- current_target.to_insert_fork_catchpoint = debug_to_insert_fork_catchpoint;
- current_target.to_remove_fork_catchpoint = debug_to_remove_fork_catchpoint;
- current_target.to_insert_vfork_catchpoint = debug_to_insert_vfork_catchpoint;
- current_target.to_remove_vfork_catchpoint = debug_to_remove_vfork_catchpoint;
- current_target.to_has_forked = debug_to_has_forked;
- current_target.to_has_vforked = debug_to_has_vforked;
- current_target.to_can_follow_vfork_prior_to_exec = debug_to_can_follow_vfork_prior_to_exec;
- current_target.to_post_follow_vfork = debug_to_post_follow_vfork;
- current_target.to_insert_exec_catchpoint = debug_to_insert_exec_catchpoint;
- current_target.to_remove_exec_catchpoint = debug_to_remove_exec_catchpoint;
- current_target.to_has_execd = debug_to_has_execd;
- current_target.to_reported_exec_events_per_exec_call = debug_to_reported_exec_events_per_exec_call;
- current_target.to_has_syscall_event = debug_to_has_syscall_event;
- current_target.to_has_exited = debug_to_has_exited;
- current_target.to_mourn_inferior = debug_to_mourn_inferior;
- current_target.to_can_run = debug_to_can_run;
- current_target.to_notice_signals = debug_to_notice_signals;
- current_target.to_thread_alive = debug_to_thread_alive;
- current_target.to_stop = debug_to_stop;
- current_target.to_query = debug_to_query;
- current_target.to_enable_exception_callback = debug_to_enable_exception_callback;
- current_target.to_get_current_exception_event = debug_to_get_current_exception_event;
- current_target.to_pid_to_exec_file = debug_to_pid_to_exec_file;
- current_target.to_core_file_to_sym_file = debug_to_core_file_to_sym_file;
-
-}
-#endif /* MAINTENANCE_CMDS */
-
-static char targ_desc[] =
- "Names of targets and files being debugged.\n\
-Shows the entire stack of targets currently in use (including the exec-file,\n\
-core-file, and process, if any), as well as the symbol file name.";
-
-void
-initialize_targets ()
-{
- push_target (&dummy_target);
-
- add_info ("target", target_info, targ_desc);
- add_info ("files", target_info, targ_desc);
-
-#ifdef MAINTENANCE_CMDS
- add_show_from_set (
- add_set_cmd ("targetdebug", class_maintenance, var_zinteger,
- (char *)&targetdebug,
- "Set target debugging.\n\
-When non-zero, target debugging is enabled.", &setlist),
- &showlist);
-#endif
-
- if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
- abort ();
-}