static void
child_detach (char *args, int from_tty)
{
child_detach_from_process (PIDGET (inferior_ptid), args, from_tty, 0);
inferior_ptid = null_ptid;
unpush_target (&child_ops);
}
static void
inf_ptrace_detach (char *args, int from_tty)
{
pid_t pid = ptid_get_pid (inferior_ptid);
int sig = 0;
if (from_tty)
{
char *exec_file = get_exec_file (0);
if (exec_file == 0)
exec_file = "";
printf_unfiltered (_("Detaching from program: %s, %s\n"), exec_file,
target_pid_to_str (pid_to_ptid (pid)));
gdb_flush (gdb_stdout);
}
if (args)
sig = atoi (args);
#ifdef PT_DETACH
/* We'd better not have left any breakpoints in the program or it'll
die when it hits one. Alsno note that this may only work if we
previously attached to the inferior. It *might* work if we
started the process ourselves. */
errno = 0;
ptrace (PT_DETACH, pid, (PTRACE_TYPE_ARG3)1, sig);
if (errno != 0)
perror_with_name (("ptrace"));
attach_flag = 0;
#else
error (_("This system does not support detaching from a process"));
#endif
inferior_ptid = null_ptid;
unpush_target (ptrace_ops_hack);
}
static void
sol_thread_detach (char *args, int from_tty)
{
inferior_ptid = pid_to_ptid (PIDGET (main_ph.ptid));
unpush_target (&sol_thread_ops);
procfs_ops.to_detach (args, from_tty);
}
static void
haiku_child_detach (char *args, int from_tty)
{
int detached = 1;
status_t result;
TRACE(("haiku_child_detach(`%s', %d)\n", args, from_tty));
result = remove_team_debugger(sTeamDebugInfo.team);
if (result != B_OK) {
error("Failed to detach process %ld: %s\n", sTeamDebugInfo.team,
strerror(result));
}
delete_command (NULL, 0);
if (from_tty) {
char *exec_file = get_exec_file (0);
if (exec_file == 0)
exec_file = "";
printf_unfiltered ("Detaching from program: %s, Pid %ld\n", exec_file,
sTeamDebugInfo.team);
gdb_flush (gdb_stdout);
}
haiku_cleanup_team_debug_info();
inferior_ptid = null_ptid;
unpush_target (sHaikuTarget);
}
static void
spu_multiarch_deactivate (void)
{
unpush_target (&spu_ops);
/* Make sure the thread architecture is re-evaluated. */
registers_changed ();
}
static void
haiku_child_mourn_inferior (void)
{
TRACE(("haiku_child_mourn_inferior()\n"));
haiku_cleanup_team_debug_info();
unpush_target (sHaikuTarget);
generic_mourn_inferior ();
}
void
exec_file_clear (int from_tty)
{
/* Remove exec file. */
unpush_target (&exec_ops);
if (from_tty)
printf_unfiltered (_("No executable file now.\n"));
}
static void
core_detach (struct target_ops *ops, char *args, int from_tty)
{
if (args)
error (_("Too many arguments"));
unpush_target (ops);
reinit_frame_cache ();
if (from_tty)
printf_filtered (_("No core file now.\n"));
}
static void
disable_dec_thread (void)
{
if (!dec_thread_active)
return;
pthreadDebugContextDestroy (debug_context);
unpush_target (&dec_thread_ops);
dec_thread_active = 0;
}
static void
fbsd_thread_mourn_inferior (void)
{
if (fbsd_thread_active)
fbsd_thread_deactivate ();
unpush_target (&fbsd_thread_ops);
child_ops.to_mourn_inferior ();
}
static void
kgdb_trgt_detach(char *args, int from_tty)
{
if (args)
error ("Too many arguments");
unpush_target(&kgdb_trgt_ops);
reinit_frame_cache();
if (from_tty)
printf_filtered("No vmcore file now.\n");
}
static void
nbsd_thread_mourn_inferior (struct target_ops *ops)
{
struct target_ops *beneath = find_target_beneath (ops);
if (nbsd_thread_active)
nbsd_thread_deactivate ();
unpush_target (ops);
beneath->to_mourn_inferior (beneath);
}
void
core_target::detach (inferior *inf, int from_tty)
{
/* Note that 'this' is dangling after this call. unpush_target
closes the target, and our close implementation deletes
'this'. */
unpush_target (this);
/* Clear the register cache and the frame cache. */
registers_changed ();
reinit_frame_cache ();
maybe_say_no_core_file_now (from_tty);
}
static void
nbsd_thread_detach (struct target_ops *ops, const char *args, int from_tty)
{
struct target_ops *beneath = find_target_beneath (ops);
unpush_target (ops);
td_close (main_ta);
/* Ordinarily, gdb caches solib information, but this means that it
won't call the new_obfile hook on a reattach. Clear the symbol file
cache so that attach -> detach -> attach works. */
clear_solib();
symbol_file_clear(0);
beneath->to_detach (beneath, args, from_tty);
nbsd_thread_deactivate ();
}
static void
fbsd_thread_mourn_inferior (struct target_ops *ops)
{
struct target_ops *beneath = find_target_beneath (ops);
fbsd_thread_deactivate ();
beneath->to_mourn_inferior (beneath);
/* Delete thread event breakpoints, if any. */
remove_thread_event_breakpoints ();
unpush_target (ops);
}
static void
fbsd_thread_detach (struct target_ops *ops, char *args, int from_tty)
{
struct target_ops *beneath = find_target_beneath (ops);
fbsd_thread_deactivate ();
/* Delete thread event breakpoints, if any. */
remove_thread_event_breakpoints ();
unpush_target (&fbsd_thread_ops);
beneath->to_detach (beneath, args, from_tty);
}
static void
fbsd_core_detach (char *args, int from_tty)
{
if (fbsd_thread_active)
fbsd_thread_deactivate ();
unpush_target (&fbsd_thread_ops);
orig_core_ops.to_detach (args, from_tty);
/* Clear gdb solib information and symbol file
cache, so that after detach and re-attach, new_objfile
hook will be called */
clear_solib();
symbol_file_clear(0);
}
static void
inf_ptrace_mourn_inferior (void)
{
int status;
/* Wait just one more time to collect the inferior's exit status.
Don not check whether this succeeds though, since we may be
dealing with a process that we attached to. Such a process will
only report its exit status to its origional parent. */
waitpid (ptid_get_pid (inferior_ptid), &status, 0);
unpush_target (ptrace_ops_hack);
generic_mourn_inferior ();
}
void
remove_target_sections (void *owner)
{
struct target_section *src, *dest;
struct target_section_table *table = current_target_sections;
gdb_assert (owner != NULL);
dest = table->sections;
for (src = table->sections; src < table->sections_end; src++)
if (src->owner != owner)
{
/* Keep this section. */
if (dest < src)
*dest = *src;
dest++;
}
/* If we've dropped any sections, resize the section table. */
if (dest < src)
{
int old_count;
old_count = resize_section_table (table, dest - src);
/* If we don't have any more sections to read memory from,
remove the file_stratum target from the stack. */
if (old_count + (dest - src) == 0)
{
struct program_space *pspace;
ALL_PSPACES (pspace)
if (pspace->target_sections.sections
!= pspace->target_sections.sections_end)
return;
unpush_target (&exec_ops);
}
}
static void
child_detach (char *args, int from_tty)
{
int siggnal = 0;
int pid = PIDGET (inferior_ptid);
if (from_tty)
{
char *exec_file = get_exec_file (0);
if (exec_file == 0)
exec_file = "";
printf_unfiltered (_("Detaching from program: %s, %s\n"), exec_file,
target_pid_to_str (pid_to_ptid (pid)));
gdb_flush (gdb_stdout);
}
if (args)
siggnal = atoi (args);
detach (siggnal);
inferior_ptid = null_ptid;
unpush_target (&deprecated_child_ops);
}
static void
gdbsim_open (char *args, int from_tty)
{
int len;
char *arg_buf;
char **argv;
if (sr_get_debug ())
printf_filtered ("gdbsim_open: args \"%s\"\n", args ? args : "(null)");
/* Remove current simulator if one exists. Only do this if the simulator
has been opened because sim_close requires it.
This is important because the call to push_target below will cause
sim_close to be called if the simulator is already open, but push_target
is called after sim_open! We can't move the call to push_target before
the call to sim_open because sim_open may invoke `error'. */
if (gdbsim_desc != NULL)
unpush_target (&gdbsim_ops);
len = (7 + 1 /* gdbsim */
+ strlen (" -E little")
+ strlen (" --architecture=xxxxxxxxxx")
+ (args ? strlen (args) : 0)
+ 50) /* slack */ ;
arg_buf = (char *) alloca (len);
strcpy (arg_buf, "gdbsim"); /* 7 */
/* Specify the byte order for the target when it is both selectable
and explicitly specified by the user (not auto detected). */
switch (selected_byte_order ())
{
case BFD_ENDIAN_BIG:
strcat (arg_buf, " -E big");
break;
case BFD_ENDIAN_LITTLE:
strcat (arg_buf, " -E little");
break;
case BFD_ENDIAN_UNKNOWN:
break;
}
/* Specify the architecture of the target when it has been
explicitly specified */
if (selected_architecture_name () != NULL)
{
strcat (arg_buf, " --architecture=");
strcat (arg_buf, selected_architecture_name ());
}
/* finally, any explicit args */
if (args)
{
strcat (arg_buf, " "); /* 1 */
strcat (arg_buf, args);
}
argv = buildargv (arg_buf);
if (argv == NULL)
error ("Insufficient memory available to allocate simulator arg list.");
make_cleanup_freeargv (argv);
init_callbacks ();
gdbsim_desc = sim_open (SIM_OPEN_DEBUG, &gdb_callback, exec_bfd, argv);
if (gdbsim_desc == 0)
error ("unable to create simulator instance");
push_target (&gdbsim_ops);
target_fetch_registers (-1);
printf_filtered ("Connected to the simulator.\n");
}
static void
child_mourn_inferior (void)
{
unpush_target (&child_ops);
generic_mourn_inferior ();
}
static void
kgdb_trgt_open(char *filename, int from_tty)
{
struct cleanup *old_chain;
struct thread_info *ti;
struct kthr *kt;
kvm_t *nkvm;
char *temp;
int ontop;
target_preopen (from_tty);
if (!filename)
error ("No vmcore file specified.");
if (!exec_bfd)
error ("Can't open a vmcore without a kernel");
filename = tilde_expand (filename);
if (filename[0] != '/') {
temp = concat (current_directory, "/", filename, NULL);
xfree(filename);
filename = temp;
}
old_chain = make_cleanup (xfree, filename);
nkvm = kvm_openfiles(bfd_get_filename(exec_bfd), filename, NULL,
write_files ? O_RDWR : O_RDONLY, kvm_err);
if (nkvm == NULL)
error ("Failed to open vmcore: %s", kvm_err);
/* Don't free the filename now and close any previous vmcore. */
discard_cleanups(old_chain);
unpush_target(&kgdb_trgt_ops);
kvm = nkvm;
vmcore = filename;
old_chain = make_cleanup(kgdb_core_cleanup, NULL);
ontop = !push_target (&kgdb_trgt_ops);
discard_cleanups (old_chain);
kgdb_dmesg();
init_thread_list();
kt = kgdb_thr_init();
while (kt != NULL) {
ti = add_thread(pid_to_ptid(kt->tid));
kt = kgdb_thr_next(kt);
}
if (curkthr != 0)
inferior_ptid = pid_to_ptid(curkthr->tid);
if (ontop) {
/* XXX: fetch registers? */
kld_init();
flush_cached_frames();
select_frame (get_current_frame());
print_stack_frame(get_selected_frame(),
frame_relative_level(get_selected_frame()), 1);
} else
warning(
"you won't be able to access this vmcore until you terminate\n\
your %s; do ``info files''", target_longname);
}
static void
tfile_open (const char *arg, int from_tty)
{
char *temp;
struct cleanup *old_chain;
int flags;
int scratch_chan;
char header[TRACE_HEADER_SIZE];
char linebuf[1000]; /* Should be max remote packet size or so. */
gdb_byte byte;
int bytes, i;
struct trace_status *ts;
struct uploaded_tp *uploaded_tps = NULL;
struct uploaded_tsv *uploaded_tsvs = NULL;
char *filename;
target_preopen (from_tty);
if (!arg)
error (_("No trace file specified."));
filename = tilde_expand (arg);
if (!IS_ABSOLUTE_PATH(filename))
{
temp = concat (current_directory, "/", filename, (char *) NULL);
xfree (filename);
filename = temp;
}
old_chain = make_cleanup (xfree, filename);
flags = O_BINARY | O_LARGEFILE;
flags |= O_RDONLY;
scratch_chan = gdb_open_cloexec (filename, flags, 0);
if (scratch_chan < 0)
perror_with_name (filename);
/* Looks semi-reasonable. Toss the old trace file and work on the new. */
discard_cleanups (old_chain); /* Don't free filename any more. */
unpush_target (&tfile_ops);
trace_filename = xstrdup (filename);
trace_fd = scratch_chan;
/* Make sure this is clear. */
buffer_free (&trace_tdesc);
bytes = 0;
/* Read the file header and test for validity. */
tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE);
bytes += TRACE_HEADER_SIZE;
if (!(header[0] == 0x7f
&& (startswith (header + 1, "TRACE0\n"))))
error (_("File is not a valid trace file."));
push_target (&tfile_ops);
trace_regblock_size = 0;
ts = current_trace_status ();
/* We know we're working with a file. Record its name. */
ts->filename = trace_filename;
/* Set defaults in case there is no status line. */
ts->running_known = 0;
ts->stop_reason = trace_stop_reason_unknown;
ts->traceframe_count = -1;
ts->buffer_free = 0;
ts->disconnected_tracing = 0;
ts->circular_buffer = 0;
TRY
{
/* Read through a section of newline-terminated lines that
define things like tracepoints. */
i = 0;
while (1)
{
tfile_read (&byte, 1);
++bytes;
if (byte == '\n')
{
/* Empty line marks end of the definition section. */
if (i == 0)
break;
linebuf[i] = '\0';
i = 0;
tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs);
}
else
linebuf[i++] = byte;
if (i >= 1000)
error (_("Excessively long lines in trace file"));
}
/* By now, tdesc lines have been read from tfile - let's parse them. */
target_find_description ();
/* Record the starting offset of the binary trace data. */
trace_frames_offset = bytes;
/* If we don't have a blocksize, we can't interpret the
traceframes. */
if (trace_regblock_size == 0)
error (_("No register block size recorded in trace file"));
}
CATCH (ex, RETURN_MASK_ALL)
{
/* Remove the partially set up target. */
unpush_target (&tfile_ops);
throw_exception (ex);
}
static void
sol_thread_mourn_inferior (void)
{
unpush_target (&sol_thread_ops);
procfs_ops.to_mourn_inferior ();
}
void
inf_child_maybe_unpush_target (struct target_ops *ops)
{
if (!inf_child_explicitly_opened && !have_inferiors ())
unpush_target (ops);
}
static void
core_open (char *filename, int from_tty)
{
const char *p;
int siggy;
struct cleanup *old_chain;
char *temp;
bfd *temp_bfd;
int scratch_chan;
int flags;
volatile struct gdb_exception except;
target_preopen (from_tty);
if (!filename)
{
if (core_bfd)
error (_("No core file specified. (Use `detach' "
"to stop debugging a core file.)"));
else
error (_("No core file specified."));
}
filename = tilde_expand (filename);
if (!IS_ABSOLUTE_PATH (filename))
{
temp = concat (current_directory, "/",
filename, (char *) NULL);
xfree (filename);
filename = temp;
}
old_chain = make_cleanup (xfree, filename);
flags = O_BINARY | O_LARGEFILE;
if (write_files)
flags |= O_RDWR;
else
flags |= O_RDONLY;
scratch_chan = open (filename, flags, 0);
if (scratch_chan < 0)
perror_with_name (filename);
temp_bfd = bfd_fopen (filename, gnutarget,
write_files ? FOPEN_RUB : FOPEN_RB,
scratch_chan);
if (temp_bfd == NULL)
perror_with_name (filename);
if (!bfd_check_format (temp_bfd, bfd_core)
&& !gdb_check_format (temp_bfd))
{
/* Do it after the err msg */
/* FIXME: should be checking for errors from bfd_close (for one
thing, on error it does not free all the storage associated
with the bfd). */
make_cleanup_bfd_close (temp_bfd);
error (_("\"%s\" is not a core dump: %s"),
filename, bfd_errmsg (bfd_get_error ()));
}
/* Looks semi-reasonable. Toss the old core file and work on the
new. */
discard_cleanups (old_chain); /* Don't free filename any more */
unpush_target (&core_ops);
core_bfd = temp_bfd;
old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/);
/* FIXME: kettenis/20031023: This is very dangerous. The
CORE_GDBARCH that results from this call may very well be
different from CURRENT_GDBARCH. However, its methods may only
work if it is selected as the current architecture, because they
rely on swapped data (see gdbarch.c). We should get rid of that
swapped data. */
core_gdbarch = gdbarch_from_bfd (core_bfd);
/* Find a suitable core file handler to munch on core_bfd */
core_vec = sniff_core_bfd (core_bfd);
validate_files ();
core_data = XZALLOC (struct target_section_table);
/* Find the data section */
if (build_section_table (core_bfd,
&core_data->sections,
&core_data->sections_end))
error (_("\"%s\": Can't find sections: %s"),
bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ()));
/* If we have no exec file, try to set the architecture from the
core file. We don't do this unconditionally since an exec file
typically contains more information that helps us determine the
architecture than a core file. */
if (!exec_bfd)
set_gdbarch_from_file (core_bfd);
push_target (&core_ops);
discard_cleanups (old_chain);
/* Do this before acknowledging the inferior, so if
post_create_inferior throws (can happen easilly if you're loading
a core file with the wrong exec), we aren't left with threads
from the previous inferior. */
init_thread_list ();
inferior_ptid = null_ptid;
/* Need to flush the register cache (and the frame cache) from a
previous debug session. If inferior_ptid ends up the same as the
last debug session --- e.g., b foo; run; gcore core1; step; gcore
core2; core core1; core core2 --- then there's potential for
get_current_regcache to return the cached regcache of the
previous session, and the frame cache being stale. */
registers_changed ();
/* Build up thread list from BFD sections, and possibly set the
current thread to the .reg/NN section matching the .reg
section. */
bfd_map_over_sections (core_bfd, add_to_thread_list,
bfd_get_section_by_name (core_bfd, ".reg"));
if (ptid_equal (inferior_ptid, null_ptid))
{
/* Either we found no .reg/NN section, and hence we have a
non-threaded core (single-threaded, from gdb's perspective),
or for some reason add_to_thread_list couldn't determine
which was the "main" thread. The latter case shouldn't
usually happen, but we're dealing with input here, which can
always be broken in different ways. */
struct thread_info *thread = first_thread_of_process (-1);
if (thread == NULL)
{
inferior_appeared (current_inferior (), CORELOW_PID);
inferior_ptid = pid_to_ptid (CORELOW_PID);
add_thread_silent (inferior_ptid);
}
else
switch_to_thread (thread->ptid);
}
post_create_inferior (&core_ops, from_tty);
/* Now go through the target stack looking for threads since there
may be a thread_stratum target loaded on top of target core by
now. The layer above should claim threads found in the BFD
sections. */
TRY_CATCH (except, RETURN_MASK_ERROR)
{
target_find_new_threads ();
}
if (except.reason < 0)
exception_print (gdb_stderr, except);
p = bfd_core_file_failing_command (core_bfd);
if (p)
printf_filtered (_("Core was generated by `%s'.\n"), p);
siggy = bfd_core_file_failing_signal (core_bfd);
if (siggy > 0)
{
/* If we don't have a CORE_GDBARCH to work with, assume a native
core (map gdb_signal from host signals). If we do have
CORE_GDBARCH to work with, but no gdb_signal_from_target
implementation for that gdbarch, as a fallback measure,
assume the host signal mapping. It'll be correct for native
cores, but most likely incorrect for cross-cores. */
enum gdb_signal sig = (core_gdbarch != NULL
&& gdbarch_gdb_signal_from_target_p (core_gdbarch)
? gdbarch_gdb_signal_from_target (core_gdbarch,
siggy)
: gdb_signal_from_host (siggy));
printf_filtered (_("Program terminated with signal %d, %s.\n"),
siggy, gdb_signal_to_string (sig));
}
/* Fetch all registers from core file. */
target_fetch_registers (get_current_regcache (), -1);
/* Now, set up the frame cache, and print the top of stack. */
reinit_frame_cache ();
print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC);
}
void operator() (struct target_ops *ops) const
{
unpush_target (ops);
}
static void
core_open (const char *arg, int from_tty)
{
const char *p;
int siggy;
struct cleanup *old_chain;
char *temp;
int scratch_chan;
int flags;
char *filename;
target_preopen (from_tty);
if (!arg)
{
if (core_bfd)
error (_("No core file specified. (Use `detach' "
"to stop debugging a core file.)"));
else
error (_("No core file specified."));
}
filename = tilde_expand (arg);
if (!IS_ABSOLUTE_PATH (filename))
{
temp = concat (current_directory, "/",
filename, (char *) NULL);
xfree (filename);
filename = temp;
}
old_chain = make_cleanup (xfree, filename);
flags = O_BINARY | O_LARGEFILE;
if (write_files)
flags |= O_RDWR;
else
flags |= O_RDONLY;
scratch_chan = gdb_open_cloexec (filename, flags, 0);
if (scratch_chan < 0)
perror_with_name (filename);
gdb_bfd_ref_ptr temp_bfd (gdb_bfd_fopen (filename, gnutarget,
write_files ? FOPEN_RUB : FOPEN_RB,
scratch_chan));
if (temp_bfd == NULL)
perror_with_name (filename);
if (!bfd_check_format (temp_bfd.get (), bfd_core)
&& !gdb_check_format (temp_bfd.get ()))
{
/* Do it after the err msg */
/* FIXME: should be checking for errors from bfd_close (for one
thing, on error it does not free all the storage associated
with the bfd). */
error (_("\"%s\" is not a core dump: %s"),
filename, bfd_errmsg (bfd_get_error ()));
}
/* Looks semi-reasonable. Toss the old core file and work on the
new. */
do_cleanups (old_chain);
unpush_target (&core_ops);
core_bfd = temp_bfd.release ();
old_chain = make_cleanup (core_close_cleanup, 0 /*ignore*/);
core_gdbarch = gdbarch_from_bfd (core_bfd);
/* Find a suitable core file handler to munch on core_bfd */
core_vec = sniff_core_bfd (core_bfd);
validate_files ();
core_data = XCNEW (struct target_section_table);
/* Find the data section */
if (build_section_table (core_bfd,
&core_data->sections,
&core_data->sections_end))
error (_("\"%s\": Can't find sections: %s"),
bfd_get_filename (core_bfd), bfd_errmsg (bfd_get_error ()));
/* If we have no exec file, try to set the architecture from the
core file. We don't do this unconditionally since an exec file
typically contains more information that helps us determine the
architecture than a core file. */
if (!exec_bfd)
set_gdbarch_from_file (core_bfd);
push_target (&core_ops);
discard_cleanups (old_chain);
/* Do this before acknowledging the inferior, so if
post_create_inferior throws (can happen easilly if you're loading
a core file with the wrong exec), we aren't left with threads
from the previous inferior. */
init_thread_list ();
inferior_ptid = null_ptid;
/* Need to flush the register cache (and the frame cache) from a
previous debug session. If inferior_ptid ends up the same as the
last debug session --- e.g., b foo; run; gcore core1; step; gcore
core2; core core1; core core2 --- then there's potential for
get_current_regcache to return the cached regcache of the
previous session, and the frame cache being stale. */
registers_changed ();
/* Build up thread list from BFD sections, and possibly set the
current thread to the .reg/NN section matching the .reg
section. */
bfd_map_over_sections (core_bfd, add_to_thread_list,
bfd_get_section_by_name (core_bfd, ".reg"));
if (ptid_equal (inferior_ptid, null_ptid))
{
/* Either we found no .reg/NN section, and hence we have a
non-threaded core (single-threaded, from gdb's perspective),
or for some reason add_to_thread_list couldn't determine
which was the "main" thread. The latter case shouldn't
usually happen, but we're dealing with input here, which can
always be broken in different ways. */
struct thread_info *thread = first_thread_of_process (-1);
if (thread == NULL)
{
inferior_appeared (current_inferior (), CORELOW_PID);
inferior_ptid = pid_to_ptid (CORELOW_PID);
add_thread_silent (inferior_ptid);
}
else
switch_to_thread (thread->ptid);
}
post_create_inferior (&core_ops, from_tty);
/* Now go through the target stack looking for threads since there
may be a thread_stratum target loaded on top of target core by
now. The layer above should claim threads found in the BFD
sections. */
TRY
{
target_update_thread_list ();
}
CATCH (except, RETURN_MASK_ERROR)
{
exception_print (gdb_stderr, except);
}
void
exec_file_attach (char *filename, int from_tty)
{
/* Remove any previous exec file. */
unpush_target (&exec_ops);
/* Now open and digest the file the user requested, if any. */
if (!filename)
{
if (from_tty)
printf_unfiltered (_("No executable file now.\n"));
set_gdbarch_from_file (NULL);
}
else
{
struct cleanup *cleanups;
char *scratch_pathname;
int scratch_chan;
scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, filename,
write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY,
&scratch_pathname);
#if defined(__GO32__) || defined(_WIN32) || defined(__CYGWIN__)
if (scratch_chan < 0)
{
char *exename = alloca (strlen (filename) + 5);
strcat (strcpy (exename, filename), ".exe");
scratch_chan = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename,
write_files ? O_RDWR | O_BINARY : O_RDONLY | O_BINARY,
&scratch_pathname);
}
#endif
if (scratch_chan < 0)
perror_with_name (filename);
exec_bfd = bfd_fopen (scratch_pathname, gnutarget,
write_files ? FOPEN_RUB : FOPEN_RB,
scratch_chan);
if (!exec_bfd)
{
close (scratch_chan);
error (_("\"%s\": could not open as an executable file: %s"),
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
/* At this point, scratch_pathname and exec_bfd->name both point to the
same malloc'd string. However exec_close() will attempt to free it
via the exec_bfd->name pointer, so we need to make another copy and
leave exec_bfd as the new owner of the original copy. */
scratch_pathname = xstrdup (scratch_pathname);
cleanups = make_cleanup (xfree, scratch_pathname);
if (!bfd_check_format (exec_bfd, bfd_object))
{
/* Make sure to close exec_bfd, or else "run" might try to use
it. */
exec_close (0);
error (_("\"%s\": not in executable format: %s"),
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
/* FIXME - This should only be run for RS6000, but the ifdef is a poor
way to accomplish. */
#ifdef DEPRECATED_IBM6000_TARGET
/* Setup initial vmap. */
map_vmap (exec_bfd, 0);
if (vmap == NULL)
{
/* Make sure to close exec_bfd, or else "run" might try to use
it. */
exec_close (0);
error (_("\"%s\": can't find the file sections: %s"),
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
#endif /* DEPRECATED_IBM6000_TARGET */
if (build_section_table (exec_bfd, &exec_ops.to_sections,
&exec_ops.to_sections_end))
{
/* Make sure to close exec_bfd, or else "run" might try to use
it. */
exec_close (0);
error (_("\"%s\": can't find the file sections: %s"),
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
exec_bfd_mtime = bfd_get_mtime (exec_bfd);
validate_files ();
set_gdbarch_from_file (exec_bfd);
push_target (&exec_ops);
/* Tell display code (if any) about the changed file name. */
if (deprecated_exec_file_display_hook)
(*deprecated_exec_file_display_hook) (filename);
do_cleanups (cleanups);
}
bfd_cache_close_all ();
observer_notify_executable_changed ();
}