#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 "gdb_wait.h"
#include "dcache.h"
#include <signal.h>
extern int errno;
static void target_info (char *, int);
void cleanup_target (struct target_ops *);
static void maybe_kill_then_create_inferior (char *, char *, char **);
static void default_clone_and_follow_inferior (int, int *);
static void maybe_kill_then_attach (char *, int);
static void kill_or_be_killed (int);
static void default_terminal_info (char *, int);
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 *);
void update_current_target (void);
static void nosupport_runtime (void);
static void normal_target_post_startup_inferior (int pid);
char *normal_pid_to_str (int pid);
static int
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
debug_to_xfer_memory (CORE_ADDR, char *, int, int, struct target_ops *);
static void debug_to_files_info (struct target_ops *);
static int debug_to_insert_breakpoint (CORE_ADDR, 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 char *debug_to_pid_to_str (int);
static void debug_to_stop (void);
static int debug_to_query (int , char *, char *, int *);
struct target_ops **target_structs;
unsigned target_struct_size;
unsigned target_struct_index;
unsigned target_struct_allocsize;
#define DEFAULT_ALLOCSIZE 10
static struct target_ops dummy_target;
struct target_stack_item *target_stack;
struct target_ops current_target;
static struct cmd_list_element *targetlist = NULL;
int attach_flag;
static int targetdebug = 0;
static void setup_target_debug (void);
DCACHE *target_dcache;
int gdb_override_async = 0;
static void
target_command (char *arg, int from_tty)
{
fputs_filtered ("Argument required (target name). Try `help target'\n",
gdb_stdout);
}
void
add_target (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;
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);
}
void
target_ignore (void)
{
}
void
target_load (char *arg, int from_tty)
{
dcache_invalidate (target_dcache);
(*current_target.to_load) (arg, from_tty);
}
static int
nomemory (CORE_ADDR memaddr, char *myaddr, int len, int write,
struct target_ops *t)
{
errno = EIO;
return 0;
}
static void
tcomplain (void)
{
error ("You can't do that when your target is `%s'",
current_target.to_shortname);
}
void
noprocess (void)
{
error ("You can't do that without a process to debug.");
}
static int
nosymbol (char *name, CORE_ADDR *addrp)
{
return 1;
}
static void
nosupport_runtime (void)
{
if (!inferior_pid)
noprocess ();
else
error ("No run-time support for this");
}
static void
default_terminal_info (char *args, int from_tty)
{
printf_unfiltered ("No saved terminal information.\n");
}
static void
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.");
}
}
tcomplain ();
}
static void
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 (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);
}
void
cleanup_target (struct target_ops *t)
{
#define de_fault(field, value) \
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);
de_fault (to_pid_to_str,
(char * (*) (int))
normal_pid_to_str);
#undef de_fault
}
void
update_current_target (void)
{
struct target_stack_item *item;
struct target_ops *t;
memset (¤t_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_pid_to_str, 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_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
}
}
int
push_target (struct target_ops *t)
{
struct target_stack_item *cur, *prev, *tmp;
if (t->to_magic != OPS_MAGIC)
{
fprintf_unfiltered (gdb_stderr,
"Magic number of %s target struct wrong\n",
t->to_shortname);
abort ();
}
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 (cur)
while (t->to_stratum == cur->target_ops->to_stratum)
{
if (cur->target_ops->to_close)
(cur->target_ops->to_close) (0);
if (prev)
prev->next = cur->next;
else
target_stack = cur->next;
tmp = cur->next;
free (cur);
cur = tmp;
}
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 (¤t_target);
if (targetdebug)
setup_target_debug ();
return prev != 0;
}
int
unpush_target (struct target_ops *t)
{
struct target_stack_item *cur, *prev;
if (t->to_close)
t->to_close (0);
for (cur = target_stack, prev = NULL; cur; prev = cur, cur = cur->next)
if (cur->target_ops == t)
break;
if (!cur)
return 0;
if (!prev)
target_stack = cur->next;
else
prev->next = cur->next;
free (cur);
update_current_target ();
cleanup_target (¤t_target);
return 1;
}
void
pop_target (void)
{
(current_target.to_close) (0);
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))
int
target_read_string (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;
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);
if (errcode != 0)
{
tlen = 1;
offset = 0;
errcode = target_xfer_memory (memaddr, buf, 1, 0);
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;
}
int
target_read_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
return target_xfer_memory (memaddr, myaddr, len, 0);
}
int
target_write_memory (CORE_ADDR memaddr, char *myaddr, int len)
{
return target_xfer_memory (memaddr, myaddr, len, 1);
}
int
do_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
{
int res;
int done = 0;
struct target_ops *t;
struct target_stack_item *item;
if (len == 0)
return 0;
errno = 0;
res = current_target.to_xfer_memory
(memaddr, myaddr, len, write, ¤t_target);
if (res <= 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, len, write, t);
if (res > 0)
break;
if (t->to_has_all_memory)
break;
}
if (res <= 0)
return -1;
}
return res;
}
static int
target_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write)
{
int res;
if (len == 0)
{
return 0;
}
while (len > 0)
{
res = dcache_xfer_memory(target_dcache, memaddr, myaddr, len, write);
if (res <= 0)
{
if (!write)
memset (myaddr, 0, len);
if (errno == 0)
return EIO;
else
return errno;
}
memaddr += res;
myaddr += res;
len -= res;
}
return 0;
}
static int
target_xfer_memory_partial (CORE_ADDR memaddr, char *myaddr, int len,
int write_p, int *err)
{
int res;
if (len == 0)
{
*err = 0;
return 0;
}
res = dcache_xfer_memory (target_dcache, memaddr, myaddr, len, write_p);
if (res <= 0)
{
if (errno != 0)
*err = errno;
else
*err = EIO;
return -1;
}
*err = 0;
return res;
}
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);
}
static void
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);
#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;
}
}
void
target_preopen (int from_tty)
{
dont_repeat ();
if (target_has_execution)
{
if (!from_tty
|| query ("A program is being debugged already. Kill it? "))
target_kill ();
else
error ("Program not killed.");
}
if (target_has_execution)
pop_target ();
}
void
target_detach (char *args, int from_tty)
{
#ifdef DO_DEFERRED_STORES
DO_DEFERRED_STORES;
#endif
(current_target.to_detach) (args, from_tty);
}
void
target_link (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;
}
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;
}
void
gdb_set_async_override (int on)
{
gdb_override_async = on;
}
void
do_restore_target_async_mask (int mask)
{
target_async_mask (mask);
}
static struct target_ops *
find_default_run_target (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 (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 (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->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 (void)
{
return 0;
}
static int
return_one (void)
{
return 1;
}
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);
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;
}
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)
{
if (dest < src) *dest = *src;
dest++;
}
if (dest < src)
target_resize_to_sections (*t, dest - src);
}
}
struct target_ops *
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);
}
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)
{
if ((*t)->to_stratum == core_stratum)
{
runable = *t;
++count;
}
}
return (count == 1 ? runable : NULL);
}
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;
}
void
generic_mourn_inferior (void)
{
extern int show_breakpoint_hit_counts;
inferior_pid = 0;
attach_flag = 0;
breakpoint_init_inferior (inf_exited);
registers_changed ();
#ifdef CLEAR_DEFERRED_STORES
CLEAR_DEFERRED_STORES;
#endif
reopen_exec_file ();
reinit_frame_cache ();
if (!show_breakpoint_hit_counts)
breakpoint_clear_ignore_counts ();
if (detach_hook)
detach_hook ();
}
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"},
{"SIGCANCEL", "LWP internal signal"},
{"SIG32", "Real-time event 32"},
#if defined(MACH) || defined(__MACH__)
{"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"},
{NULL, "TARGET_SIGNAL_MAGIC"}
};
char *
target_signal_to_string (enum target_signal sig)
{
if ((sig >= TARGET_SIGNAL_FIRST) && (sig <= TARGET_SIGNAL_LAST))
return signals[sig].string;
else
return signals[TARGET_SIGNAL_UNKNOWN].string;
}
char *
target_signal_to_name (enum target_signal sig)
{
if (sig == TARGET_SIGNAL_UNKNOWN)
return "?";
return signals[sig].name;
}
enum target_signal
target_signal_from_name (char *name)
{
enum target_signal sig;
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;
}
enum target_signal
target_signal_from_host (int hostsig)
{
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 (SIGCANCEL)
if (hostsig == SIGCANCEL)
return TARGET_SIGNAL_CANCEL;
#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
#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)
{
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)
{
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;
}
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;
#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
#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 (SIGCANCEL)
case TARGET_SIGNAL_CANCEL:
return SIGCANCEL;
#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
#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)
{
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)
{
return 32;
}
#endif
#endif
#if defined (SIGRTMIN)
if (oursig >= TARGET_SIGNAL_REALTIME_33
&& oursig <= TARGET_SIGNAL_REALTIME_63)
{
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)
{
warning ("Signal %s does not exist on this system.\n",
target_signal_to_name (oursig));
return 0;
}
else
return targ_signo;
}
void
store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
{
#ifdef CHILD_SPECIAL_WAITSTATUS
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));
}
}
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.");
}
int (*target_activity_function) (void);
int target_activity_fd;
char *
normal_pid_to_str (int pid)
{
static char buf[30];
if (STREQ (current_target.to_shortname, "remote"))
sprintf (buf, "thread %d", pid);
else
sprintf (buf, "process %d", pid);
return buf;
}
static void
normal_target_post_startup_inferior (int pid)
{
}
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;
}
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,
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 char *
debug_to_pid_to_str (pid)
int pid;
{
char *retval;
retval = debug_target.to_pid_to_str (pid);
fprintf_unfiltered (gdb_stdlog, "target_thread_alive (%d) = %s\n", pid, retval);
return retval;
}
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 ? exec_file : "[NULL]");
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_pid_to_str = debug_to_pid_to_str;
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;
}
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 (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).");
target_dcache = dcache_init();
if (!STREQ (signals[TARGET_SIGNAL_LAST].string, "TARGET_SIGNAL_MAGIC"))
abort ();
}