/* Select target systems and architectures at runtime for GDB.
- Copyright 1990, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Copyright 1990, 1992-1995, 1998-2000 Free Software Foundation, Inc.
Contributed by Cygnus Support.
-This file is part of GDB.
+ 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 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.
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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 "bfd.h"
#include "symfile.h"
#include "objfiles.h"
-#include "wait.h"
+#include "gdb_wait.h"
#include <signal.h>
extern int errno;
-static void
-target_info PARAMS ((char *, int));
+static void target_info (char *, int);
-static void
-cleanup_target PARAMS ((struct target_ops *));
+static void cleanup_target (struct target_ops *);
-static void
-maybe_kill_then_create_inferior PARAMS ((char *, char *, char **));
+static void maybe_kill_then_create_inferior (char *, char *, char **);
-static void
-maybe_kill_then_attach PARAMS ((char *, int));
+static void default_clone_and_follow_inferior (int, int *);
-static void
-kill_or_be_killed PARAMS ((int));
+static void maybe_kill_then_attach (char *, int);
-static void
-default_terminal_info PARAMS ((char *, int));
+static void kill_or_be_killed (int);
-static int
-nosymbol PARAMS ((char *, CORE_ADDR *));
+static void default_terminal_info (char *, int);
-static void
-tcomplain PARAMS ((void));
+static int nosymbol (char *, CORE_ADDR *);
+
+static void tcomplain (void);
+
+static int nomemory (CORE_ADDR, char *, int, int, struct target_ops *);
+
+static int return_zero (void);
+
+static int return_one (void);
+
+void target_ignore (void);
+
+static void target_command (char *, int);
+
+static struct target_ops *find_default_run_target (char *);
+
+static void update_current_target (void);
+
+static void nosupport_runtime (void);
+
+static void normal_target_post_startup_inferior (int pid);
+
+/* 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 either target_read_memory_partial or
+ target_write_memory_partial). */
static int
-nomemory PARAMS ((CORE_ADDR, char *, int, int, struct target_ops *));
+target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write);
+
+static void init_dummy_target (void);
+
+static void debug_to_open (char *, int);
+
+static void debug_to_close (int);
+
+static void debug_to_attach (char *, int);
+
+static void debug_to_detach (char *, int);
+
+static void debug_to_resume (int, int, enum target_signal);
+
+static int debug_to_wait (int, struct target_waitstatus *);
+
+static void debug_to_fetch_registers (int);
+
+static void debug_to_store_registers (int);
+
+static void debug_to_prepare_to_store (void);
static int
-return_zero PARAMS ((void));
+debug_to_xfer_memory (CORE_ADDR, char *, int, int, struct target_ops *);
-static void
-ignore PARAMS ((void));
+static void debug_to_files_info (struct target_ops *);
-static void
-target_command PARAMS ((char *, int));
+static int debug_to_insert_breakpoint (CORE_ADDR, char *);
-static struct target_ops *
-find_default_run_target PARAMS ((char *));
+static int debug_to_remove_breakpoint (CORE_ADDR, char *);
+
+static void debug_to_terminal_init (void);
+
+static void debug_to_terminal_inferior (void);
+
+static void debug_to_terminal_ours_for_output (void);
+
+static void debug_to_terminal_ours (void);
+
+static void debug_to_terminal_info (char *, int);
+
+static void debug_to_kill (void);
+
+static void debug_to_load (char *, int);
+
+static int debug_to_lookup_symbol (char *, CORE_ADDR *);
+
+static void debug_to_create_inferior (char *, char *, char **);
+
+static void debug_to_mourn_inferior (void);
+
+static int debug_to_can_run (void);
+
+static void debug_to_notice_signals (int);
+
+static int debug_to_thread_alive (int);
+
+static void debug_to_stop (void);
+
+static int debug_to_query (int /*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
/* The initial current target, so that there is always a semi-valid
current target. */
-struct target_ops dummy_target = {"None", "None", "",
- 0, 0, /* open, close */
- find_default_attach, 0, /* attach, detach */
- 0, 0, /* resume, wait */
- 0, 0, 0, /* registers */
- 0, 0, /* memory */
- 0, 0, /* bkpts */
- 0, 0, 0, 0, 0, /* terminal */
- 0, 0, /* kill, load */
- 0, /* lookup_symbol */
- find_default_create_inferior, /* create_inferior */
- 0, /* mourn_inferior */
- 0, /* can_run */
- 0, /* notice_signals */
- dummy_stratum, 0, /* stratum, next */
- 0, 0, 0, 0, 0, /* all mem, mem, stack, regs, exec */
- 0, 0, /* section pointers */
- OPS_MAGIC,
-};
+static struct target_ops dummy_target;
/* Top of target stack. */
int attach_flag;
+/* Non-zero if we want to see trace of target level stuff. */
+
+static int targetdebug = 0;
+
+static void setup_target_debug (void);
+
/* The user just typed 'target' without the name of a target. */
/* ARGSUSED */
static void
-target_command (arg, from_tty)
- char *arg;
- int from_tty;
+target_command (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;
+add_target (struct target_ops *t)
{
if (!target_structs)
{
{
target_struct_allocsize *= 2;
target_structs = (struct target_ops **)
- xrealloc ((char *) target_structs,
- target_struct_allocsize * sizeof (*target_structs));
+ xrealloc ((char *) target_structs,
+ target_struct_allocsize * sizeof (*target_structs));
}
target_structs[target_struct_size++] = t;
- cleanup_target (t);
+/* cleanup_target (t); */
if (targetlist == NULL)
add_prefix_cmd ("target", class_run, target_command,
/* Stub functions */
-static void
-ignore ()
+void
+target_ignore (void)
+{
+}
+
+void
+target_load (char *arg, int from_tty)
{
+ (*current_target.to_load) (arg, from_tty);
}
/* ARGSUSED */
static int
-nomemory (memaddr, myaddr, len, write, t)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
- struct target_ops *t;
+nomemory (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 */
+ errno = EIO; /* Can't read/write this location */
+ return 0; /* No bytes handled */
}
static void
-tcomplain ()
+tcomplain (void)
{
error ("You can't do that when your target is `%s'",
current_target.to_shortname);
}
void
-noprocess ()
+noprocess (void)
{
- error ("You can't do that without a process to debug");
+ error ("You can't do that without a process to debug.");
}
/* ARGSUSED */
static int
-nosymbol (name, addrp)
- char *name;
- CORE_ADDR *addrp;
+nosymbol (char *name, CORE_ADDR *addrp)
+{
+ return 1; /* Symbol does not exist in target env */
+}
+
+/* ARGSUSED */
+static void
+nosupport_runtime (void)
{
- return 1; /* Symbol does not exist in target env */
+ 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;
+default_terminal_info (char *args, int from_tty)
{
- printf_unfiltered("No saved terminal information.\n");
+ printf_unfiltered ("No saved terminal information.\n");
}
/* This is the default target_create_inferior and target_attach function.
the target, and the operation should be attempted. */
static void
-kill_or_be_killed (from_tty)
- int from_tty;
+kill_or_be_killed (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.");
- }
+ if (query ("Kill it? "))
+ {
+ target_kill ();
+ if (target_has_execution)
+ error ("Killing the program did not help.");
+ return;
+ }
+ else
+ {
+ error ("Program not killed.");
+ }
}
- tcomplain();
+ tcomplain ();
}
static void
-maybe_kill_then_attach (args, from_tty)
- char *args;
- int from_tty;
+maybe_kill_then_attach (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;
+maybe_kill_then_create_inferior (char *exec, char *args, char **env)
{
kill_or_be_killed (0);
target_create_inferior (exec, args, env);
}
+static void
+default_clone_and_follow_inferior (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;
+cleanup_target (struct target_ops *t)
{
#define de_fault(field, value) \
- if (!t->field) t->field = value
-
- /* FIELD DEFAULT VALUE */
-
- de_fault (to_open, (void (*)())tcomplain);
- de_fault (to_close, (void (*)())ignore);
- de_fault (to_attach, maybe_kill_then_attach);
- de_fault (to_detach, (void (*)())ignore);
- de_fault (to_resume, (void (*)())noprocess);
- de_fault (to_wait, (int (*)())noprocess);
- de_fault (to_fetch_registers, (void (*)())ignore);
- de_fault (to_store_registers, (void (*)())noprocess);
- de_fault (to_prepare_to_store, (void (*)())noprocess);
- de_fault (to_xfer_memory, (int (*)())nomemory);
- de_fault (to_files_info, (void (*)())ignore);
- de_fault (to_insert_breakpoint, memory_insert_breakpoint);
- de_fault (to_remove_breakpoint, memory_remove_breakpoint);
- de_fault (to_terminal_init, ignore);
- de_fault (to_terminal_inferior, ignore);
- de_fault (to_terminal_ours_for_output,ignore);
- de_fault (to_terminal_ours, ignore);
- de_fault (to_terminal_info, default_terminal_info);
- de_fault (to_kill, (void (*)())noprocess);
- de_fault (to_load, (void (*)())tcomplain);
- de_fault (to_lookup_symbol, nosymbol);
- de_fault (to_create_inferior, maybe_kill_then_create_inferior);
- de_fault (to_mourn_inferior, (void (*)())noprocess);
- de_fault (to_can_run, return_zero);
- de_fault (to_notice_signals, (void (*)())ignore);
-
+ if (!t->field) \
+ t->field = value
+
+ de_fault (to_open,
+ (void (*) (char *, int))
+ tcomplain);
+ de_fault (to_close,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_attach,
+ maybe_kill_then_attach);
+ de_fault (to_post_attach,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_require_attach,
+ maybe_kill_then_attach);
+ de_fault (to_detach,
+ (void (*) (char *, int))
+ target_ignore);
+ de_fault (to_require_detach,
+ (void (*) (int, char *, int))
+ target_ignore);
+ de_fault (to_resume,
+ (void (*) (int, int, enum target_signal))
+ noprocess);
+ de_fault (to_wait,
+ (int (*) (int, struct target_waitstatus *))
+ noprocess);
+ de_fault (to_post_wait,
+ (void (*) (int, int))
+ target_ignore);
+ de_fault (to_fetch_registers,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_store_registers,
+ (void (*) (int))
+ noprocess);
+ de_fault (to_prepare_to_store,
+ (void (*) (void))
+ noprocess);
+ de_fault (to_xfer_memory,
+ (int (*) (CORE_ADDR, char *, int, int, struct target_ops *))
+ nomemory);
+ de_fault (to_files_info,
+ (void (*) (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 (*) (void))
+ target_ignore);
+ de_fault (to_terminal_inferior,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_terminal_ours_for_output,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_terminal_ours,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_terminal_info,
+ default_terminal_info);
+ de_fault (to_kill,
+ (void (*) (void))
+ noprocess);
+ de_fault (to_load,
+ (void (*) (char *, int))
+ tcomplain);
+ de_fault (to_lookup_symbol,
+ (int (*) (char *, CORE_ADDR *))
+ nosymbol);
+ de_fault (to_create_inferior,
+ maybe_kill_then_create_inferior);
+ de_fault (to_post_startup_inferior,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_acknowledge_created_inferior,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_clone_and_follow_inferior,
+ default_clone_and_follow_inferior);
+ de_fault (to_post_follow_inferior_by_clone,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_insert_fork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_remove_fork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_insert_vfork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_remove_vfork_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_has_forked,
+ (int (*) (int, int *))
+ return_zero);
+ de_fault (to_has_vforked,
+ (int (*) (int, int *))
+ return_zero);
+ de_fault (to_can_follow_vfork_prior_to_exec,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_post_follow_vfork,
+ (void (*) (int, int, int, int))
+ target_ignore);
+ de_fault (to_insert_exec_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_remove_exec_catchpoint,
+ (int (*) (int))
+ tcomplain);
+ de_fault (to_has_execd,
+ (int (*) (int, char **))
+ return_zero);
+ de_fault (to_reported_exec_events_per_exec_call,
+ (int (*) (void))
+ return_one);
+ de_fault (to_has_syscall_event,
+ (int (*) (int, enum target_waitkind *, int *))
+ return_zero);
+ de_fault (to_has_exited,
+ (int (*) (int, int, int *))
+ return_zero);
+ de_fault (to_mourn_inferior,
+ (void (*) (void))
+ noprocess);
+ de_fault (to_can_run,
+ return_zero);
+ de_fault (to_notice_signals,
+ (void (*) (int))
+ target_ignore);
+ de_fault (to_thread_alive,
+ (int (*) (int))
+ return_zero);
+ de_fault (to_find_new_threads,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_extra_thread_info,
+ (char *(*) (struct thread_info *))
+ return_zero);
+ de_fault (to_stop,
+ (void (*) (void))
+ target_ignore);
+ de_fault (to_query,
+ (int (*) (int, char *, char *, int *))
+ return_zero);
+ de_fault (to_rcmd,
+ (void (*) (char *, struct ui_file *))
+ tcomplain);
+ de_fault (to_enable_exception_callback,
+ (struct symtab_and_line * (*) (enum exception_event_kind, int))
+ nosupport_runtime);
+ de_fault (to_get_current_exception_event,
+ (struct exception_event_record * (*) (void))
+ nosupport_runtime);
+ de_fault (to_pid_to_exec_file,
+ (char *(*) (int))
+ return_zero);
+ de_fault (to_core_file_to_sym_file,
+ (char *(*) (char *))
+ return_zero);
+ de_fault (to_can_async_p,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_is_async_p,
+ (int (*) (void))
+ return_zero);
+ de_fault (to_async,
+ (void (*) (void (*) (enum inferior_event_type, void*), void*))
+ tcomplain);
#undef de_fault
}
pushed target vectors. */
static void
-update_current_target ()
+update_current_target (void)
{
struct target_stack_item *item;
struct target_ops *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_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_find_new_threads, t);
+ INHERIT (to_pid_to_str, t);
+ INHERIT (to_extra_thread_info, t);
+ INHERIT (to_stop, t);
+ INHERIT (to_query, t);
+ INHERIT (to_rcmd, 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_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_can_async_p, t);
+ INHERIT (to_is_async_p, t);
+ INHERIT (to_async, t);
+ INHERIT (to_async_mask_value, t);
INHERIT (to_magic, t);
#undef INHERIT
checking them. */
int
-push_target (t)
- struct target_ops *t;
+push_target (struct target_ops *t)
{
struct target_stack_item *cur, *prev, *tmp;
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();
+ 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))
+ if ((int) (t->to_stratum) >= (int) (cur->target_ops->to_stratum))
break;
}
while (t->to_stratum == cur->target_ops->to_stratum)
{
/* There's already something on this stratum. Close it off. */
- (cur->target_ops->to_close) (0);
+ if (cur->target_ops->to_close)
+ (cur->target_ops->to_close) (0);
if (prev)
- prev->next = cur->next; /* Unchain old target_ops */
+ prev->next = cur->next; /* Unchain old target_ops */
else
- target_stack = cur->next; /* Unchain first on list */
+ target_stack = cur->next; /* Unchain first on list */
tmp = cur->next;
free (cur);
cur = tmp;
update_current_target ();
- cleanup_target (¤t_target); /* Fill in the gaps */
+ cleanup_target (¤t_target); /* Fill in the gaps */
+
+ if (targetdebug)
+ setup_target_debug ();
+
return prev != 0;
}
Return how many times it was removed (0 or 1). */
int
-unpush_target (t)
- struct target_ops *t;
+unpush_target (struct target_ops *t)
{
struct target_stack_item *cur, *prev;
- t->to_close (0); /* Let it clean up */
+ 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. */
}
void
-pop_target ()
+pop_target (void)
{
- (current_target.to_close)(0); /* Let it clean up */
+ (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();
+ fprintf_unfiltered (gdb_stderr,
+ "pop_target couldn't find target %s\n",
+ current_target.to_shortname);
+ abort ();
}
#undef MIN
read. */
int
-target_read_string (memaddr, string, len, errnop)
- CORE_ADDR memaddr;
- char **string;
- int len;
- int *errnop;
+target_read_string (CORE_ADDR memaddr, char **string, int len, int *errnop)
{
int tlen, origlen, offset, i;
char buf[4];
errcode = target_xfer_memory (memaddr & ~3, buf, 4, 0);
if (errcode != 0)
- goto done;
+ {
+ /* 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);
+ if (errcode != 0)
+ goto done;
+ }
if (bufptr - buffer + tlen > buffer_allocated)
{
len -= tlen;
nbytes_read += tlen;
}
- done:
+done:
if (errnop != NULL)
*errnop = errcode;
if (string != NULL)
deal with partial reads should call target_read_memory_partial. */
int
-target_read_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+target_read_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
return target_xfer_memory (memaddr, myaddr, len, 0);
}
-/* 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);
- 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);
- }
- /* 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;
+target_write_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
return target_xfer_memory (memaddr, myaddr, len, 1);
}
-
+
/* 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
Result is 0 or errno value. */
-int
-target_xfer_memory (memaddr, myaddr, len, write)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
+static int
+target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
{
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;
+
/* 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, ¤t_target);
+ (memaddr, myaddr, len, write, ¤t_target);
if (res == len)
return 0;
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)
else
return errno;
}
-bump:
+ bump:
memaddr += res;
- myaddr += res;
- len -= res;
+ myaddr += res;
+ len -= res;
}
return 0; /* We managed to cover it all somehow. */
}
+/* Perform a partial memory transfer. */
+
+static int
+target_xfer_memory_partial (CORE_ADDR memaddr, char *buf, int len,
+ int write_p, int *err)
+{
+ int res;
+ int err_res;
+ int len_res;
+ struct target_ops *t;
+ struct target_stack_item *item;
+
+ /* Zero length requests are ok and require no work. */
+ if (len == 0)
+ {
+ *err = 0;
+ return 0;
+ }
+
+ /* The quick case is that the top target does it all. */
+ res = current_target.to_xfer_memory (memaddr, buf, len, write_p, ¤t_target);
+ if (res > 0)
+ {
+ *err = 0;
+ return res;
+ }
+
+ /* xfer memory doesn't always reliably set errno. */
+ errno = 0;
+
+ /* Try all levels of the target stack to see one can handle it. */
+ for (item = target_stack; item; item = item->next)
+ {
+ t = item->target_ops;
+ if (!t->to_has_memory)
+ continue;
+ res = t->to_xfer_memory (memaddr, buf, len, write_p, t);
+ if (res > 0)
+ {
+ /* Handled all or part of xfer */
+ *err = 0;
+ return res;
+ }
+ if (t->to_has_all_memory)
+ break;
+ }
+
+ /* Total failure. Return error. */
+ if (errno != 0)
+ {
+ *err = errno;
+ return -1;
+ }
+ *err = EIO;
+ return -1;
+}
+
+int
+target_read_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+{
+ return target_xfer_memory_partial (memaddr, buf, len, 0, err);
+}
+
+int
+target_write_memory_partial (CORE_ADDR memaddr, char *buf, int len, int *err)
+{
+ return target_xfer_memory_partial (memaddr, buf, len, 1, err);
+}
+
/* ARGSUSED */
static void
-target_info (args, from_tty)
- char *args;
- int from_tty;
+target_info (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);
{
t = item->target_ops;
- if ((int)(t->to_stratum) <= (int)dummy_stratum)
+ 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);
+ 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;
}
}
anything. */
void
-target_preopen (from_tty)
- int from_tty;
+target_preopen (int from_tty)
{
- dont_repeat();
+ dont_repeat ();
if (target_has_execution)
- {
- if (query ("A program is being debugged already. Kill it? "))
- target_kill ();
+ {
+ if (!from_tty
+ || query ("A program is being debugged already. Kill it? "))
+ target_kill ();
else
- error ("Program not killed.");
+ error ("Program not killed.");
}
/* Calling target_kill may remove the target from the stack. But if
/* Detach a target after doing deferred register stores. */
void
-target_detach (args, from_tty)
- char *args;
- int from_tty;
+target_detach (char *args, int from_tty)
{
/* Handle any optimized stores to the inferior. */
#ifdef DO_DEFERRED_STORES
}
void
-target_link (modname, t_reloc)
- char *modname;
- CORE_ADDR *t_reloc;
+target_link (char *modname, CORE_ADDR *t_reloc)
{
- if (STREQ(current_target.to_shortname, "rombug"))
+ 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);
+ error ("Unable to link to %s and get relocation in rombug", modname);
}
else
- *t_reloc = (CORE_ADDR)-1;
+ *t_reloc = (CORE_ADDR) -1;
+}
+
+int
+target_async_mask (int mask)
+{
+ int saved_async_masked_status = target_async_mask_value;
+ target_async_mask_value = mask;
+ return saved_async_masked_status;
}
/* Look through the list of possible targets for a target that can
Result is always valid (error() is called for errors). */
static struct target_ops *
-find_default_run_target (do_mesg)
- char *do_mesg;
+find_default_run_target (char *do_mesg)
{
struct target_ops **t;
struct target_ops *runable = NULL;
for (t = target_structs; t < target_structs + target_struct_size;
++t)
{
- if (target_can_run(*t))
+ if ((*t)->to_can_run && target_can_run (*t))
{
runable = *t;
++count;
}
void
-find_default_attach (args, from_tty)
- char *args;
- int from_tty;
+find_default_attach (char *args, int from_tty)
{
struct target_ops *t;
- t = find_default_run_target("attach");
+ t = find_default_run_target ("attach");
(t->to_attach) (args, from_tty);
return;
}
void
-find_default_create_inferior (exec_file, allargs, env)
- char *exec_file;
- char *allargs;
- char **env;
+find_default_require_attach (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 (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 (char *exec_file, char *allargs, char **env)
{
struct target_ops *t;
- t = find_default_run_target("run");
+ t = find_default_run_target ("run");
(t->to_create_inferior) (exec_file, allargs, env);
return;
}
+void
+find_default_clone_and_follow_inferior (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_zero (void)
{
return 0;
}
+static int
+return_one (void)
+{
+ return 1;
+}
+
+/*
+ * Resize the to_sections pointer. Also make sure that anyone that
+ * was holding on to an old value of it gets updated.
+ * Returns the old size.
+ */
+
+int
+target_resize_to_sections (struct target_ops *target, int num_added)
+{
+ struct target_ops **t;
+ struct section_table *old_value;
+ int old_count;
+
+ old_value = target->to_sections;
+
+ if (target->to_sections)
+ {
+ old_count = target->to_sections_end - target->to_sections;
+ target->to_sections = (struct section_table *)
+ xrealloc ((char *) target->to_sections,
+ (sizeof (struct section_table)) * (num_added + old_count));
+ }
+ else
+ {
+ old_count = 0;
+ target->to_sections = (struct section_table *)
+ xmalloc ((sizeof (struct section_table)) * num_added);
+ }
+ target->to_sections_end = target->to_sections + (num_added + old_count);
+
+ /* Check to see if anyone else was pointing to this structure.
+ If old_value was null, then no one was. */
+
+ if (old_value)
+ {
+ for (t = target_structs; t < target_structs + target_struct_size;
+ ++t)
+ {
+ if ((*t)->to_sections == old_value)
+ {
+ (*t)->to_sections = target->to_sections;
+ (*t)->to_sections_end = target->to_sections_end;
+ }
+ }
+ }
+
+ return old_count;
+
+}
+
+/* Remove all target sections taken from ABFD.
+
+ Scan the current target stack for targets whose section tables
+ refer to sections from BFD, and remove those sections. We use this
+ when we notice that the inferior has unloaded a shared object, for
+ example. */
+void
+remove_target_sections (bfd *abfd)
+{
+ struct target_ops **t;
+
+ for (t = target_structs; t < target_structs + target_struct_size; t++)
+ {
+ struct section_table *src, *dest;
+
+ dest = (*t)->to_sections;
+ for (src = (*t)->to_sections; src < (*t)->to_sections_end; src++)
+ if (src->bfd != abfd)
+ {
+ /* Keep this section. */
+ if (dest < src) *dest = *src;
+ dest++;
+ }
+
+ /* If we've dropped any sections, resize the section table. */
+ if (dest < src)
+ target_resize_to_sections (*t, dest - src);
+ }
+}
+
+
+
+
+/* Find a single runnable target in the stack and return it. If for
+ some reason there is more than one, return NULL. */
+
struct target_ops *
-find_core_target ()
+find_run_target (void)
{
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;
+ }
+ }
+
+ return (count == 1 ? runable : NULL);
+}
+
+/* Find a single core_stratum target in the list of targets and return it.
+ If for some reason there is more than one, return NULL. */
+
+struct target_ops *
+find_core_target (void)
+{
+ struct target_ops **t;
+ struct target_ops *runable = NULL;
+ int count;
+
+ count = 0;
+
for (t = target_structs; t < target_structs + target_struct_size;
++t)
{
++count;
}
}
-
- return(count == 1 ? runable : NULL);
+
+ return (count == 1 ? runable : NULL);
+}
+
+/*
+ * Find the next target down the stack from the specified target.
+ */
+
+struct target_ops *
+find_target_beneath (struct target_ops *t)
+{
+ struct target_stack_item *cur;
+
+ for (cur = target_stack; cur; cur = cur->next)
+ if (cur->target_ops == t)
+ break;
+
+ if (cur == NULL || cur->next == NULL)
+ return NULL;
+ else
+ return cur->next->target_ops;
}
+
\f
/* The inferior process has died. Long live the inferior! */
void
-generic_mourn_inferior ()
+generic_mourn_inferior (void)
{
extern int show_breakpoint_hit_counts;
inferior_pid = 0;
attach_flag = 0;
- breakpoint_init_inferior ();
+ breakpoint_init_inferior (inf_exited);
registers_changed ();
#ifdef CLEAR_DEFERRED_STORES
using hit counts. So don't clear them if we're counting hits. */
if (!show_breakpoint_hit_counts)
breakpoint_clear_ignore_counts ();
+
+ if (detach_hook)
+ detach_hook ();
}
\f
/* This table must match in order and size the signals in enum target_signal
in target.h. */
+/* *INDENT-OFF* */
static struct {
char *name;
char *string;
{"SIGLWP", "Signal LWP"},
{"SIGDANGER", "Swap space dangerously low"},
{"SIGGRANT", "Monitor mode granted"},
- {"SIGRETRACT", "Need to relinguish monitor mode"},
+ {"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"},
+ {"SIGCANCEL", "LWP internal signal"},
+ {"SIG32", "Real-time event 32"},
+
+#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
+ {"SIGINFO", "Information request"},
+
{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"}
};
+/* *INDENT-ON* */
+
+
/* Return the string for a signal. */
char *
-target_signal_to_string (sig)
- enum target_signal sig;
+target_signal_to_string (enum target_signal sig)
{
- return signals[sig].string;
+ if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST))
+ return signals[sig].string;
+ else
+ return signals[TARGET_SIGNAL_UNKNOWN].string;
}
/* Return the name for a signal. */
char *
-target_signal_to_name (sig)
- enum target_signal sig;
+target_signal_to_name (enum target_signal sig)
{
if (sig == TARGET_SIGNAL_UNKNOWN)
/* I think the code which prints this will always print it along with
/* Given a name, return its signal. */
enum target_signal
-target_signal_from_name (name)
- char *name;
+target_signal_from_name (char *name)
{
enum target_signal sig;
/* 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))
+ sig = (enum target_signal) ((int) sig + 1))
if (STREQ (name, signals[sig].name))
return sig;
return TARGET_SIGNAL_UNKNOWN;
/* Convert host signal to our signals. */
enum target_signal
-target_signal_from_host (hostsig)
- int hostsig;
+target_signal_from_host (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 (hostsig == 0)
+ return TARGET_SIGNAL_0;
#if defined (SIGHUP)
- if (hostsig == SIGHUP) return TARGET_SIGNAL_HUP;
+ if (hostsig == SIGHUP)
+ return TARGET_SIGNAL_HUP;
#endif
#if defined (SIGINT)
- if (hostsig == SIGINT) return TARGET_SIGNAL_INT;
+ if (hostsig == SIGINT)
+ return TARGET_SIGNAL_INT;
#endif
#if defined (SIGQUIT)
- if (hostsig == SIGQUIT) return TARGET_SIGNAL_QUIT;
+ if (hostsig == SIGQUIT)
+ return TARGET_SIGNAL_QUIT;
#endif
#if defined (SIGILL)
- if (hostsig == SIGILL) return TARGET_SIGNAL_ILL;
+ if (hostsig == SIGILL)
+ return TARGET_SIGNAL_ILL;
#endif
#if defined (SIGTRAP)
- if (hostsig == SIGTRAP) return TARGET_SIGNAL_TRAP;
+ if (hostsig == SIGTRAP)
+ return TARGET_SIGNAL_TRAP;
#endif
#if defined (SIGABRT)
- if (hostsig == SIGABRT) return TARGET_SIGNAL_ABRT;
+ if (hostsig == SIGABRT)
+ return TARGET_SIGNAL_ABRT;
#endif
#if defined (SIGEMT)
- if (hostsig == SIGEMT) return TARGET_SIGNAL_EMT;
+ if (hostsig == SIGEMT)
+ return TARGET_SIGNAL_EMT;
#endif
#if defined (SIGFPE)
- if (hostsig == SIGFPE) return TARGET_SIGNAL_FPE;
+ if (hostsig == SIGFPE)
+ return TARGET_SIGNAL_FPE;
#endif
#if defined (SIGKILL)
- if (hostsig == SIGKILL) return TARGET_SIGNAL_KILL;
+ if (hostsig == SIGKILL)
+ return TARGET_SIGNAL_KILL;
#endif
#if defined (SIGBUS)
- if (hostsig == SIGBUS) return TARGET_SIGNAL_BUS;
+ if (hostsig == SIGBUS)
+ return TARGET_SIGNAL_BUS;
#endif
#if defined (SIGSEGV)
- if (hostsig == SIGSEGV) return TARGET_SIGNAL_SEGV;
+ if (hostsig == SIGSEGV)
+ return TARGET_SIGNAL_SEGV;
#endif
#if defined (SIGSYS)
- if (hostsig == SIGSYS) return TARGET_SIGNAL_SYS;
+ if (hostsig == SIGSYS)
+ return TARGET_SIGNAL_SYS;
#endif
#if defined (SIGPIPE)
- if (hostsig == SIGPIPE) return TARGET_SIGNAL_PIPE;
+ if (hostsig == SIGPIPE)
+ return TARGET_SIGNAL_PIPE;
#endif
#if defined (SIGALRM)
- if (hostsig == SIGALRM) return TARGET_SIGNAL_ALRM;
+ if (hostsig == SIGALRM)
+ return TARGET_SIGNAL_ALRM;
#endif
#if defined (SIGTERM)
- if (hostsig == SIGTERM) return TARGET_SIGNAL_TERM;
+ if (hostsig == SIGTERM)
+ return TARGET_SIGNAL_TERM;
#endif
#if defined (SIGUSR1)
- if (hostsig == SIGUSR1) return TARGET_SIGNAL_USR1;
+ if (hostsig == SIGUSR1)
+ return TARGET_SIGNAL_USR1;
#endif
#if defined (SIGUSR2)
- if (hostsig == SIGUSR2) return TARGET_SIGNAL_USR2;
+ if (hostsig == SIGUSR2)
+ return TARGET_SIGNAL_USR2;
#endif
#if defined (SIGCLD)
- if (hostsig == SIGCLD) return TARGET_SIGNAL_CHLD;
+ if (hostsig == SIGCLD)
+ return TARGET_SIGNAL_CHLD;
#endif
#if defined (SIGCHLD)
- if (hostsig == SIGCHLD) return TARGET_SIGNAL_CHLD;
+ if (hostsig == SIGCHLD)
+ return TARGET_SIGNAL_CHLD;
#endif
#if defined (SIGPWR)
- if (hostsig == SIGPWR) return TARGET_SIGNAL_PWR;
+ if (hostsig == SIGPWR)
+ return TARGET_SIGNAL_PWR;
#endif
#if defined (SIGWINCH)
- if (hostsig == SIGWINCH) return TARGET_SIGNAL_WINCH;
+ if (hostsig == SIGWINCH)
+ return TARGET_SIGNAL_WINCH;
#endif
#if defined (SIGURG)
- if (hostsig == SIGURG) return TARGET_SIGNAL_URG;
+ if (hostsig == SIGURG)
+ return TARGET_SIGNAL_URG;
#endif
#if defined (SIGIO)
- if (hostsig == SIGIO) return TARGET_SIGNAL_IO;
+ if (hostsig == SIGIO)
+ return TARGET_SIGNAL_IO;
#endif
#if defined (SIGPOLL)
- if (hostsig == SIGPOLL) return TARGET_SIGNAL_POLL;
+ if (hostsig == SIGPOLL)
+ return TARGET_SIGNAL_POLL;
#endif
#if defined (SIGSTOP)
- if (hostsig == SIGSTOP) return TARGET_SIGNAL_STOP;
+ if (hostsig == SIGSTOP)
+ return TARGET_SIGNAL_STOP;
#endif
#if defined (SIGTSTP)
- if (hostsig == SIGTSTP) return TARGET_SIGNAL_TSTP;
+ if (hostsig == SIGTSTP)
+ return TARGET_SIGNAL_TSTP;
#endif
#if defined (SIGCONT)
- if (hostsig == SIGCONT) return TARGET_SIGNAL_CONT;
+ if (hostsig == SIGCONT)
+ return TARGET_SIGNAL_CONT;
#endif
#if defined (SIGTTIN)
- if (hostsig == SIGTTIN) return TARGET_SIGNAL_TTIN;
+ if (hostsig == SIGTTIN)
+ return TARGET_SIGNAL_TTIN;
#endif
#if defined (SIGTTOU)
- if (hostsig == SIGTTOU) return TARGET_SIGNAL_TTOU;
+ if (hostsig == SIGTTOU)
+ return TARGET_SIGNAL_TTOU;
#endif
#if defined (SIGVTALRM)
- if (hostsig == SIGVTALRM) return TARGET_SIGNAL_VTALRM;
+ if (hostsig == SIGVTALRM)
+ return TARGET_SIGNAL_VTALRM;
#endif
#if defined (SIGPROF)
- if (hostsig == SIGPROF) return TARGET_SIGNAL_PROF;
+ if (hostsig == SIGPROF)
+ return TARGET_SIGNAL_PROF;
#endif
#if defined (SIGXCPU)
- if (hostsig == SIGXCPU) return TARGET_SIGNAL_XCPU;
+ if (hostsig == SIGXCPU)
+ return TARGET_SIGNAL_XCPU;
#endif
#if defined (SIGXFSZ)
- if (hostsig == SIGXFSZ) return TARGET_SIGNAL_XFSZ;
+ if (hostsig == SIGXFSZ)
+ return TARGET_SIGNAL_XFSZ;
#endif
#if defined (SIGWIND)
- if (hostsig == SIGWIND) return TARGET_SIGNAL_WIND;
+ if (hostsig == SIGWIND)
+ return TARGET_SIGNAL_WIND;
#endif
#if defined (SIGPHONE)
- if (hostsig == SIGPHONE) return TARGET_SIGNAL_PHONE;
+ if (hostsig == SIGPHONE)
+ return TARGET_SIGNAL_PHONE;
#endif
#if defined (SIGLOST)
- if (hostsig == SIGLOST) return TARGET_SIGNAL_LOST;
+ if (hostsig == SIGLOST)
+ return TARGET_SIGNAL_LOST;
#endif
#if defined (SIGWAITING)
- if (hostsig == SIGWAITING) return TARGET_SIGNAL_WAITING;
+ if (hostsig == SIGWAITING)
+ return TARGET_SIGNAL_WAITING;
+#endif
+#if defined (SIGCANCEL)
+ if (hostsig == SIGCANCEL)
+ return TARGET_SIGNAL_CANCEL;
#endif
#if defined (SIGLWP)
- if (hostsig == SIGLWP) return TARGET_SIGNAL_LWP;
+ if (hostsig == SIGLWP)
+ return TARGET_SIGNAL_LWP;
#endif
#if defined (SIGDANGER)
- if (hostsig == SIGDANGER) return TARGET_SIGNAL_DANGER;
+ if (hostsig == SIGDANGER)
+ return TARGET_SIGNAL_DANGER;
#endif
#if defined (SIGGRANT)
- if (hostsig == SIGGRANT) return TARGET_SIGNAL_GRANT;
+ if (hostsig == SIGGRANT)
+ return TARGET_SIGNAL_GRANT;
#endif
#if defined (SIGRETRACT)
- if (hostsig == SIGRETRACT) return TARGET_SIGNAL_RETRACT;
+ if (hostsig == SIGRETRACT)
+ return TARGET_SIGNAL_RETRACT;
#endif
#if defined (SIGMSG)
- if (hostsig == SIGMSG) return TARGET_SIGNAL_MSG;
+ if (hostsig == SIGMSG)
+ return TARGET_SIGNAL_MSG;
#endif
#if defined (SIGSOUND)
- if (hostsig == SIGSOUND) return TARGET_SIGNAL_SOUND;
+ if (hostsig == SIGSOUND)
+ return TARGET_SIGNAL_SOUND;
#endif
#if defined (SIGSAK)
- if (hostsig == SIGSAK) return TARGET_SIGNAL_SAK;
+ if (hostsig == SIGSAK)
+ return TARGET_SIGNAL_SAK;
+#endif
+#if defined (SIGPRIO)
+ if (hostsig == SIGPRIO)
+ return TARGET_SIGNAL_PRIO;
#endif
- return TARGET_SIGNAL_UNKNOWN;
-}
-int
-target_signal_to_host (oursig)
- enum target_signal oursig;
+ /* 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 (SIGINFO)
+ if (hostsig == SIGINFO)
+ return TARGET_SIGNAL_INFO;
+#endif
+
+#if defined (REALTIME_LO)
+ if (hostsig >= REALTIME_LO && hostsig < REALTIME_HI)
+ {
+ /* This block of TARGET_SIGNAL_REALTIME value is in order. */
+ if (33 <= hostsig && hostsig <= 63)
+ return (enum target_signal)
+ (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
+ else if (hostsig == 32)
+ return TARGET_SIGNAL_REALTIME_32;
+ else
+ error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
+ }
+#endif
+
+#if defined (SIGRTMIN)
+ if (hostsig >= SIGRTMIN && hostsig <= SIGRTMAX)
+ {
+ /* This block of TARGET_SIGNAL_REALTIME value is in order. */
+ if (33 <= hostsig && hostsig <= 63)
+ return (enum target_signal)
+ (hostsig - 33 + (int) TARGET_SIGNAL_REALTIME_33);
+ else
+ error ("GDB bug: target.c (target_signal_from_host): unrecognized real-time signal");
+ }
+#endif
+ return TARGET_SIGNAL_UNKNOWN;
+}
+
+/* Convert a OURSIG (an enum target_signal) to the form used by the
+ target operating system (refered to as the ``host'') or zero if the
+ equivalent host signal is not available. Set/clear OURSIG_OK
+ accordingly. */
+
+static int
+do_target_signal_to_host (enum target_signal oursig,
+ int *oursig_ok)
{
+ *oursig_ok = 1;
switch (oursig)
{
- case TARGET_SIGNAL_0: return 0;
+ case TARGET_SIGNAL_0:
+ return 0;
#if defined (SIGHUP)
- case TARGET_SIGNAL_HUP: return SIGHUP;
+ case TARGET_SIGNAL_HUP:
+ return SIGHUP;
#endif
#if defined (SIGINT)
- case TARGET_SIGNAL_INT: return SIGINT;
+ case TARGET_SIGNAL_INT:
+ return SIGINT;
#endif
#if defined (SIGQUIT)
- case TARGET_SIGNAL_QUIT: return SIGQUIT;
+ case TARGET_SIGNAL_QUIT:
+ return SIGQUIT;
#endif
#if defined (SIGILL)
- case TARGET_SIGNAL_ILL: return SIGILL;
+ case TARGET_SIGNAL_ILL:
+ return SIGILL;
#endif
#if defined (SIGTRAP)
- case TARGET_SIGNAL_TRAP: return SIGTRAP;
+ case TARGET_SIGNAL_TRAP:
+ return SIGTRAP;
#endif
#if defined (SIGABRT)
- case TARGET_SIGNAL_ABRT: return SIGABRT;
+ case TARGET_SIGNAL_ABRT:
+ return SIGABRT;
#endif
#if defined (SIGEMT)
- case TARGET_SIGNAL_EMT: return SIGEMT;
+ case TARGET_SIGNAL_EMT:
+ return SIGEMT;
#endif
#if defined (SIGFPE)
- case TARGET_SIGNAL_FPE: return SIGFPE;
+ case TARGET_SIGNAL_FPE:
+ return SIGFPE;
#endif
#if defined (SIGKILL)
- case TARGET_SIGNAL_KILL: return SIGKILL;
+ case TARGET_SIGNAL_KILL:
+ return SIGKILL;
#endif
#if defined (SIGBUS)
- case TARGET_SIGNAL_BUS: return SIGBUS;
+ case TARGET_SIGNAL_BUS:
+ return SIGBUS;
#endif
#if defined (SIGSEGV)
- case TARGET_SIGNAL_SEGV: return SIGSEGV;
+ case TARGET_SIGNAL_SEGV:
+ return SIGSEGV;
#endif
#if defined (SIGSYS)
- case TARGET_SIGNAL_SYS: return SIGSYS;
+ case TARGET_SIGNAL_SYS:
+ return SIGSYS;
#endif
#if defined (SIGPIPE)
- case TARGET_SIGNAL_PIPE: return SIGPIPE;
+ case TARGET_SIGNAL_PIPE:
+ return SIGPIPE;
#endif
#if defined (SIGALRM)
- case TARGET_SIGNAL_ALRM: return SIGALRM;
+ case TARGET_SIGNAL_ALRM:
+ return SIGALRM;
#endif
#if defined (SIGTERM)
- case TARGET_SIGNAL_TERM: return SIGTERM;
+ case TARGET_SIGNAL_TERM:
+ return SIGTERM;
#endif
#if defined (SIGUSR1)
- case TARGET_SIGNAL_USR1: return SIGUSR1;
+ case TARGET_SIGNAL_USR1:
+ return SIGUSR1;
#endif
#if defined (SIGUSR2)
- case TARGET_SIGNAL_USR2: return SIGUSR2;
+ case TARGET_SIGNAL_USR2:
+ return SIGUSR2;
#endif
#if defined (SIGCHLD) || defined (SIGCLD)
- case TARGET_SIGNAL_CHLD:
+ case TARGET_SIGNAL_CHLD:
#if defined (SIGCHLD)
return SIGCHLD;
#else
#endif
#endif /* SIGCLD or SIGCHLD */
#if defined (SIGPWR)
- case TARGET_SIGNAL_PWR: return SIGPWR;
+ case TARGET_SIGNAL_PWR:
+ return SIGPWR;
#endif
#if defined (SIGWINCH)
- case TARGET_SIGNAL_WINCH: return SIGWINCH;
+ case TARGET_SIGNAL_WINCH:
+ return SIGWINCH;
#endif
#if defined (SIGURG)
- case TARGET_SIGNAL_URG: return SIGURG;
+ case TARGET_SIGNAL_URG:
+ return SIGURG;
#endif
#if defined (SIGIO)
- case TARGET_SIGNAL_IO: return SIGIO;
+ case TARGET_SIGNAL_IO:
+ return SIGIO;
#endif
#if defined (SIGPOLL)
- case TARGET_SIGNAL_POLL: return SIGPOLL;
+ case TARGET_SIGNAL_POLL:
+ return SIGPOLL;
#endif
#if defined (SIGSTOP)
- case TARGET_SIGNAL_STOP: return SIGSTOP;
+ case TARGET_SIGNAL_STOP:
+ return SIGSTOP;
#endif
#if defined (SIGTSTP)
- case TARGET_SIGNAL_TSTP: return SIGTSTP;
+ case TARGET_SIGNAL_TSTP:
+ return SIGTSTP;
#endif
#if defined (SIGCONT)
- case TARGET_SIGNAL_CONT: return SIGCONT;
+ case TARGET_SIGNAL_CONT:
+ return SIGCONT;
#endif
#if defined (SIGTTIN)
- case TARGET_SIGNAL_TTIN: return SIGTTIN;
+ case TARGET_SIGNAL_TTIN:
+ return SIGTTIN;
#endif
#if defined (SIGTTOU)
- case TARGET_SIGNAL_TTOU: return SIGTTOU;
+ case TARGET_SIGNAL_TTOU:
+ return SIGTTOU;
#endif
#if defined (SIGVTALRM)
- case TARGET_SIGNAL_VTALRM: return SIGVTALRM;
+ case TARGET_SIGNAL_VTALRM:
+ return SIGVTALRM;
#endif
#if defined (SIGPROF)
- case TARGET_SIGNAL_PROF: return SIGPROF;
+ case TARGET_SIGNAL_PROF:
+ return SIGPROF;
#endif
#if defined (SIGXCPU)
- case TARGET_SIGNAL_XCPU: return SIGXCPU;
+ case TARGET_SIGNAL_XCPU:
+ return SIGXCPU;
#endif
#if defined (SIGXFSZ)
- case TARGET_SIGNAL_XFSZ: return SIGXFSZ;
+ case TARGET_SIGNAL_XFSZ:
+ return SIGXFSZ;
#endif
#if defined (SIGWIND)
- case TARGET_SIGNAL_WIND: return SIGWIND;
+ case TARGET_SIGNAL_WIND:
+ return SIGWIND;
#endif
#if defined (SIGPHONE)
- case TARGET_SIGNAL_PHONE: return SIGPHONE;
+ case TARGET_SIGNAL_PHONE:
+ return SIGPHONE;
#endif
#if defined (SIGLOST)
- case TARGET_SIGNAL_LOST: return SIGLOST;
+ case TARGET_SIGNAL_LOST:
+ return SIGLOST;
#endif
#if defined (SIGWAITING)
- case TARGET_SIGNAL_WAITING: return SIGWAITING;
+ case TARGET_SIGNAL_WAITING:
+ return SIGWAITING;
+#endif
+#if defined (SIGCANCEL)
+ case TARGET_SIGNAL_CANCEL:
+ return SIGCANCEL;
#endif
#if defined (SIGLWP)
- case TARGET_SIGNAL_LWP: return SIGLWP;
+ case TARGET_SIGNAL_LWP:
+ return SIGLWP;
#endif
#if defined (SIGDANGER)
- case TARGET_SIGNAL_DANGER: return SIGDANGER;
+ case TARGET_SIGNAL_DANGER:
+ return SIGDANGER;
#endif
#if defined (SIGGRANT)
- case TARGET_SIGNAL_GRANT: return SIGGRANT;
+ case TARGET_SIGNAL_GRANT:
+ return SIGGRANT;
#endif
#if defined (SIGRETRACT)
- case TARGET_SIGNAL_RETRACT: return SIGRETRACT;
+ case TARGET_SIGNAL_RETRACT:
+ return SIGRETRACT;
#endif
#if defined (SIGMSG)
- case TARGET_SIGNAL_MSG: return SIGMSG;
+ case TARGET_SIGNAL_MSG:
+ return SIGMSG;
#endif
#if defined (SIGSOUND)
- case TARGET_SIGNAL_SOUND: return SIGSOUND;
+ case TARGET_SIGNAL_SOUND:
+ return SIGSOUND;
#endif
#if defined (SIGSAK)
- case TARGET_SIGNAL_SAK: return 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
+
+#if defined (SIGINFO)
+ case TARGET_SIGNAL_INFO:
+ return SIGINFO;
+#endif
+
default:
+#if defined (REALTIME_LO)
+ if (oursig >= TARGET_SIGNAL_REALTIME_33
+ && oursig <= TARGET_SIGNAL_REALTIME_63)
+ {
+ /* This block of signals is continuous, and
+ TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
+ int retsig =
+ (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
+ if (retsig >= REALTIME_LO && retsig < REALTIME_HI)
+ return retsig;
+ }
+#if (REALTIME_LO < 33)
+ else if (oursig == TARGET_SIGNAL_REALTIME_32)
+ {
+ /* TARGET_SIGNAL_REALTIME_32 isn't contiguous with
+ TARGET_SIGNAL_REALTIME_33. It is 32 by definition. */
+ return 32;
+ }
+#endif
+#endif
+
+#if defined (SIGRTMIN)
+ if (oursig >= TARGET_SIGNAL_REALTIME_33
+ && oursig <= TARGET_SIGNAL_REALTIME_63)
+ {
+ /* This block of signals is continuous, and
+ TARGET_SIGNAL_REALTIME_33 is 33 by definition. */
+ int retsig =
+ (int) oursig - (int) TARGET_SIGNAL_REALTIME_33 + 33;
+ if (retsig >= SIGRTMIN && retsig <= SIGRTMAX)
+ return retsig;
+ }
+#endif
+ *oursig_ok = 0;
+ return 0;
+ }
+}
+
+int
+target_signal_to_host_p (enum target_signal oursig)
+{
+ int oursig_ok;
+ do_target_signal_to_host (oursig, &oursig_ok);
+ return oursig_ok;
+}
+
+int
+target_signal_to_host (enum target_signal oursig)
+{
+ int oursig_ok;
+ int targ_signo = do_target_signal_to_host (oursig, &oursig_ok);
+ if (!oursig_ok)
+ {
/* The user might be trying to do "signal SIGSAK" where this system
- doesn't have SIGSAK. */
+ doesn't have SIGSAK. */
warning ("Signal %s does not exist on this system.\n",
target_signal_to_name (oursig));
return 0;
}
+ else
+ return targ_signo;
}
/* 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;
+store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
{
#ifdef CHILD_SPECIAL_WAITSTATUS
/* CHILD_SPECIAL_WAITSTATUS should return nonzero and set *OURSTATUS
ourstatus->value.sig = target_signal_from_host (WSTOPSIG (hoststatus));
}
}
+\f
+/* 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 obsolescent. 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 (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.");
+}
\f
/* Returns zero to leave the inferior alone, one to interrupt it. */
-int (*target_activity_function) PARAMS ((void));
+int (*target_activity_function) (void);
int target_activity_fd;
\f
/* Convert a normal process ID to a string. Returns the string in a static
buffer. */
char *
-normal_pid_to_str (pid)
- int pid;
+normal_pid_to_str (int pid)
{
static char buf[30];
- sprintf (buf, "process %d", pid);
+ if (STREQ (current_target.to_shortname, "remote"))
+ sprintf (buf, "thread %d", pid);
+ else
+ sprintf (buf, "process %d", 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.
+ */
+static void
+normal_target_post_startup_inferior (int pid)
+{
+ /* This space intentionally left blank. */
+}
+
+/* Set up the handful of non-empty slots needed by the dummy target
+ vector. */
+
+static void
+init_dummy_target (void)
+{
+ dummy_target.to_shortname = "None";
+ dummy_target.to_longname = "None";
+ dummy_target.to_doc = "";
+ dummy_target.to_attach = find_default_attach;
+ dummy_target.to_require_attach = find_default_require_attach;
+ dummy_target.to_require_detach = find_default_require_detach;
+ dummy_target.to_create_inferior = find_default_create_inferior;
+ dummy_target.to_clone_and_follow_inferior = find_default_clone_and_follow_inferior;
+ dummy_target.to_pid_to_str = normal_pid_to_str;
+ dummy_target.to_stratum = dummy_stratum;
+ dummy_target.to_magic = OPS_MAGIC;
+}
+\f
+
+static struct target_ops debug_target;
+
+static void
+debug_to_open (char *args, int from_tty)
+{
+ debug_target.to_open (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_open (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_close (int quitting)
+{
+ debug_target.to_close (quitting);
+
+ fprintf_unfiltered (gdb_stdlog, "target_close (%d)\n", quitting);
+}
+
+static void
+debug_to_attach (char *args, int from_tty)
+{
+ debug_target.to_attach (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_attach (%s, %d)\n", args, from_tty);
+}
+
+
+static void
+debug_to_post_attach (int pid)
+{
+ debug_target.to_post_attach (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_attach (%d)\n", pid);
+}
+
+static void
+debug_to_require_attach (char *args, int from_tty)
+{
+ debug_target.to_require_attach (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_require_attach (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_detach (char *args, int from_tty)
+{
+ debug_target.to_detach (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_detach (%s, %d)\n", args, from_tty);
+}
+
+static void
+debug_to_require_detach (int pid, char *args, int from_tty)
+{
+ debug_target.to_require_detach (pid, args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_require_detach (%d, %s, %d)\n", pid, args, from_tty);
+}
+
+static void
+debug_to_resume (int pid, int step, enum target_signal siggnal)
+{
+ debug_target.to_resume (pid, step, siggnal);
+
+ fprintf_unfiltered (gdb_stdlog, "target_resume (%d, %s, %s)\n", pid,
+ step ? "step" : "continue",
+ target_signal_to_name (siggnal));
+}
+
+static int
+debug_to_wait (int pid, struct target_waitstatus *status)
+{
+ int retval;
+
+ retval = debug_target.to_wait (pid, status);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_wait (%d, status) = %d, ", pid, retval);
+ fprintf_unfiltered (gdb_stdlog, "status->kind = ");
+ switch (status->kind)
+ {
+ case TARGET_WAITKIND_EXITED:
+ fprintf_unfiltered (gdb_stdlog, "exited, status = %d\n",
+ status->value.integer);
+ break;
+ case TARGET_WAITKIND_STOPPED:
+ fprintf_unfiltered (gdb_stdlog, "stopped, signal = %s\n",
+ target_signal_to_name (status->value.sig));
+ break;
+ case TARGET_WAITKIND_SIGNALLED:
+ fprintf_unfiltered (gdb_stdlog, "signalled, signal = %s\n",
+ target_signal_to_name (status->value.sig));
+ break;
+ case TARGET_WAITKIND_LOADED:
+ fprintf_unfiltered (gdb_stdlog, "loaded\n");
+ break;
+ case TARGET_WAITKIND_FORKED:
+ fprintf_unfiltered (gdb_stdlog, "forked\n");
+ break;
+ case TARGET_WAITKIND_VFORKED:
+ fprintf_unfiltered (gdb_stdlog, "vforked\n");
+ break;
+ case TARGET_WAITKIND_EXECD:
+ fprintf_unfiltered (gdb_stdlog, "execd\n");
+ break;
+ case TARGET_WAITKIND_SPURIOUS:
+ fprintf_unfiltered (gdb_stdlog, "spurious\n");
+ break;
+ default:
+ fprintf_unfiltered (gdb_stdlog, "unknown???\n");
+ break;
+ }
+
+ return retval;
+}
+
+static void
+debug_to_post_wait (int pid, int status)
+{
+ debug_target.to_post_wait (pid, status);
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_wait (%d, %d)\n",
+ pid, status);
+}
+
+static void
+debug_to_fetch_registers (int regno)
+{
+ debug_target.to_fetch_registers (regno);
+
+ fprintf_unfiltered (gdb_stdlog, "target_fetch_registers (%s)",
+ regno != -1 ? REGISTER_NAME (regno) : "-1");
+ if (regno != -1)
+ fprintf_unfiltered (gdb_stdlog, " = 0x%lx %ld",
+ (unsigned long) read_register (regno),
+ (unsigned long) read_register (regno));
+ fprintf_unfiltered (gdb_stdlog, "\n");
+}
+
+static void
+debug_to_store_registers (int regno)
+{
+ debug_target.to_store_registers (regno);
+
+ if (regno >= 0 && regno < NUM_REGS)
+ fprintf_unfiltered (gdb_stdlog, "target_store_registers (%s) = 0x%lx %ld\n",
+ REGISTER_NAME (regno),
+ (unsigned long) read_register (regno),
+ (unsigned long) read_register (regno));
+ else
+ fprintf_unfiltered (gdb_stdlog, "target_store_registers (%d)\n", regno);
+}
+
+static void
+debug_to_prepare_to_store (void)
+{
+ debug_target.to_prepare_to_store ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_prepare_to_store ()\n");
+}
+
+static int
+debug_to_xfer_memory (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_stdlog,
+ "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_stdlog);
+ for (i = 0; i < retval; i++)
+ {
+ if ((((long) &(myaddr[i])) & 0xf) == 0)
+ fprintf_unfiltered (gdb_stdlog, "\n");
+ fprintf_unfiltered (gdb_stdlog, " %02x", myaddr[i] & 0xff);
+ }
+ }
+
+ fputc_unfiltered ('\n', gdb_stdlog);
+
+ return retval;
+}
+
+static void
+debug_to_files_info (struct target_ops *target)
+{
+ debug_target.to_files_info (target);
+
+ fprintf_unfiltered (gdb_stdlog, "target_files_info (xxx)\n");
+}
+
+static int
+debug_to_insert_breakpoint (CORE_ADDR addr, char *save)
+{
+ int retval;
+
+ retval = debug_target.to_insert_breakpoint (addr, save);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_insert_breakpoint (0x%lx, xxx) = %ld\n",
+ (unsigned long) addr,
+ (unsigned long) retval);
+ return retval;
+}
+
+static int
+debug_to_remove_breakpoint (CORE_ADDR addr, char *save)
+{
+ int retval;
+
+ retval = debug_target.to_remove_breakpoint (addr, save);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_remove_breakpoint (0x%lx, xxx) = %ld\n",
+ (unsigned long) addr,
+ (unsigned long) retval);
+ return retval;
+}
+
+static void
+debug_to_terminal_init (void)
+{
+ debug_target.to_terminal_init ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_init ()\n");
+}
+
+static void
+debug_to_terminal_inferior (void)
+{
+ debug_target.to_terminal_inferior ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_inferior ()\n");
+}
+
+static void
+debug_to_terminal_ours_for_output (void)
+{
+ debug_target.to_terminal_ours_for_output ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_ours_for_output ()\n");
+}
+
+static void
+debug_to_terminal_ours (void)
+{
+ debug_target.to_terminal_ours ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_ours ()\n");
+}
+
+static void
+debug_to_terminal_info (char *arg, int from_tty)
+{
+ debug_target.to_terminal_info (arg, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_terminal_info (%s, %d)\n", arg,
+ from_tty);
+}
+
+static void
+debug_to_kill (void)
+{
+ debug_target.to_kill ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_kill ()\n");
+}
+
+static void
+debug_to_load (char *args, int from_tty)
+{
+ debug_target.to_load (args, from_tty);
+
+ fprintf_unfiltered (gdb_stdlog, "target_load (%s, %d)\n", args, from_tty);
+}
+
+static int
+debug_to_lookup_symbol (char *name, CORE_ADDR *addrp)
+{
+ int retval;
+
+ retval = debug_target.to_lookup_symbol (name, addrp);
+
+ fprintf_unfiltered (gdb_stdlog, "target_lookup_symbol (%s, xxx)\n", name);
+
+ return retval;
+}
+
+static void
+debug_to_create_inferior (char *exec_file, char *args, char **env)
+{
+ debug_target.to_create_inferior (exec_file, args, env);
+
+ fprintf_unfiltered (gdb_stdlog, "target_create_inferior (%s, %s, xxx)\n",
+ exec_file, args);
+}
+
+static void
+debug_to_post_startup_inferior (int pid)
+{
+ debug_target.to_post_startup_inferior (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_startup_inferior (%d)\n",
+ pid);
+}
+
+static void
+debug_to_acknowledge_created_inferior (int pid)
+{
+ debug_target.to_acknowledge_created_inferior (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_acknowledge_created_inferior (%d)\n",
+ pid);
+}
+
+static void
+debug_to_clone_and_follow_inferior (int child_pid, int *followed_child)
+{
+ debug_target.to_clone_and_follow_inferior (child_pid, followed_child);
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_clone_and_follow_inferior (%d, %d)\n",
+ child_pid, *followed_child);
+}
+
+static void
+debug_to_post_follow_inferior_by_clone (void)
+{
+ debug_target.to_post_follow_inferior_by_clone ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_post_follow_inferior_by_clone ()\n");
+}
+
+static int
+debug_to_insert_fork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_insert_fork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_fork_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_remove_fork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_remove_fork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_remove_fork_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_insert_vfork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_insert_vfork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_vfork_catchpoint (%d)= %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_remove_vfork_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_remove_vfork_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_remove_vfork_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_has_forked (int pid, int *child_pid)
+{
+ int has_forked;
+
+ has_forked = debug_target.to_has_forked (pid, child_pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_has_forked (%d, %d) = %d\n",
+ pid, *child_pid, has_forked);
+
+ return has_forked;
+}
+
+static int
+debug_to_has_vforked (int pid, int *child_pid)
+{
+ int has_vforked;
+
+ has_vforked = debug_target.to_has_vforked (pid, child_pid);
+
+ fprintf_unfiltered (gdb_stdlog, "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 (void)
+{
+ int can_immediately_follow_vfork;
+
+ can_immediately_follow_vfork = debug_target.to_can_follow_vfork_prior_to_exec ();
+
+ fprintf_unfiltered (gdb_stdlog, "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 (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_stdlog,
+ "target_post_follow_vfork (%d, %d, %d, %d)\n",
+ parent_pid, followed_parent, child_pid, followed_child);
+}
+
+static int
+debug_to_insert_exec_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_insert_exec_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_insert_exec_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_remove_exec_catchpoint (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_remove_exec_catchpoint (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_remove_exec_catchpoint (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static int
+debug_to_has_execd (int pid, char **execd_pathname)
+{
+ int has_execd;
+
+ has_execd = debug_target.to_has_execd (pid, execd_pathname);
+
+ fprintf_unfiltered (gdb_stdlog, "target_has_execd (%d, %s) = %d\n",
+ pid, (*execd_pathname ? *execd_pathname : "<NULL>"),
+ has_execd);
+
+ return has_execd;
+}
+
+static int
+debug_to_reported_exec_events_per_exec_call (void)
+{
+ int reported_exec_events;
+
+ reported_exec_events = debug_target.to_reported_exec_events_per_exec_call ();
+
+ fprintf_unfiltered (gdb_stdlog,
+ "target_reported_exec_events_per_exec_call () = %d\n",
+ reported_exec_events);
+
+ return reported_exec_events;
+}
+
+static int
+debug_to_has_syscall_event (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_stdlog,
+ "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 (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_stdlog, "target_has_exited (%d, %d, %d) = %d\n",
+ pid, wait_status, *exit_status, has_exited);
+
+ return has_exited;
+}
+
+static void
+debug_to_mourn_inferior (void)
+{
+ debug_target.to_mourn_inferior ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_mourn_inferior ()\n");
+}
+
+static int
+debug_to_can_run (void)
+{
+ int retval;
+
+ retval = debug_target.to_can_run ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_can_run () = %d\n", retval);
+
+ return retval;
+}
+
+static void
+debug_to_notice_signals (int pid)
+{
+ debug_target.to_notice_signals (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_notice_signals (%d)\n", pid);
+}
+
+static int
+debug_to_thread_alive (int pid)
+{
+ int retval;
+
+ retval = debug_target.to_thread_alive (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %d\n",
+ pid, retval);
+
+ return retval;
+}
+
+static void
+debug_to_find_new_threads (void)
+{
+ debug_target.to_find_new_threads ();
+
+ fputs_unfiltered ("target_find_new_threads ()\n", gdb_stdlog);
+}
+
+static void
+debug_to_stop (void)
+{
+ debug_target.to_stop ();
+
+ fprintf_unfiltered (gdb_stdlog, "target_stop ()\n");
+}
+
+static int
+debug_to_query (int type, char *req, char *resp, int *siz)
+{
+ int retval;
+
+ retval = debug_target.to_query (type, req, resp, siz);
+
+ fprintf_unfiltered (gdb_stdlog, "target_query (%c, %s, %s, %d) = %d\n", type, req, resp, *siz, retval);
+
+ return retval;
+}
+
+static void
+debug_to_rcmd (char *command,
+ struct ui_file *outbuf)
+{
+ debug_target.to_rcmd (command, outbuf);
+ fprintf_unfiltered (gdb_stdlog, "target_rcmd (%s, ...)\n", command);
+}
+
+static struct symtab_and_line *
+debug_to_enable_exception_callback (enum exception_event_kind kind, int enable)
+{
+ struct symtab_and_line *result;
+ result = debug_target.to_enable_exception_callback (kind, enable);
+ fprintf_unfiltered (gdb_stdlog,
+ "target get_exception_callback_sal (%d, %d)\n",
+ kind, enable);
+ return result;
+}
+
+static struct exception_event_record *
+debug_to_get_current_exception_event (void)
+{
+ struct exception_event_record *result;
+ result = debug_target.to_get_current_exception_event ();
+ fprintf_unfiltered (gdb_stdlog, "target get_current_exception_event ()\n");
+ return result;
+}
+
+static char *
+debug_to_pid_to_exec_file (int pid)
+{
+ char *exec_file;
+
+ exec_file = debug_target.to_pid_to_exec_file (pid);
+
+ fprintf_unfiltered (gdb_stdlog, "target_pid_to_exec_file (%d) = %s\n",
+ pid, exec_file);
+
+ return exec_file;
+}
+
+static char *
+debug_to_core_file_to_sym_file (char *core)
+{
+ char *sym_file;
+
+ sym_file = debug_target.to_core_file_to_sym_file (core);
+
+ fprintf_unfiltered (gdb_stdlog, "target_core_file_to_sym_file (%s) = %s\n",
+ core, sym_file);
+
+ return sym_file;
+}
+
+static void
+setup_target_debug (void)
+{
+ memcpy (&debug_target, ¤t_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_find_new_threads = debug_to_find_new_threads;
+ current_target.to_stop = debug_to_stop;
+ current_target.to_query = debug_to_query;
+ current_target.to_rcmd = debug_to_rcmd;
+ 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;
+
+}
\f
-static char targ_desc[] =
- "Names of targets and files being debugged.\n\
+
+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.";
+static void
+do_monitor_command (char *cmd,
+ int from_tty)
+{
+ if ((current_target.to_rcmd
+ == (void (*) (char *, struct ui_file *)) tcomplain)
+ || (current_target.to_rcmd == debug_to_rcmd
+ && (debug_target.to_rcmd
+ == (void (*) (char *, struct ui_file *)) tcomplain)))
+ {
+ error ("\"monitor\" command not supported by this target.\n");
+ }
+ target_rcmd (cmd, gdb_stdtarg);
+}
+
void
-initialize_targets ()
+initialize_targets (void)
{
+ init_dummy_target ();
push_target (&dummy_target);
add_info ("target", target_info, targ_desc);
add_info ("files", target_info, targ_desc);
+ add_show_from_set (
+ add_set_cmd ("target", class_maintenance, var_zinteger,
+ (char *) &targetdebug,
+ "Set target debugging.\n\
+When non-zero, target debugging is enabled.", &setdebuglist),
+ &showdebuglist);
+
+
+ add_com ("monitor", class_obscure, do_monitor_command,
+ "Send a command to the remote monitor (remote targets only).");
+
if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
abort ();
}
projects / deliverable / binutils-gdb.git / blobdiff