static void
kill_command (char *arg, int from_tty)
{
/* FIXME: This should not really be inferior_ptid (or target_has_execution).
It should be a distinct flag that indicates that a target is active, cuz
some targets don't have processes! */
if (ptid_equal (inferior_ptid, null_ptid))
error ("The program is not being run.");
if (!query ("Kill the program being debugged? "))
error ("Not confirmed.");
target_kill ();
init_thread_list (); /* Destroy thread info */
/* Killing off the inferior can leave us with a core file. If so,
print the state we are left in. */
if (target_has_stack)
{
printf_filtered ("In %s,\n", target_longname);
if (deprecated_selected_frame == NULL)
fputs_filtered ("No selected stack frame.\n", gdb_stdout);
else
print_stack_frame (get_selected_frame (), 1, SRC_AND_LOC);
}
bfd_cache_close_all ();
}
static void
mi_on_normal_stop (struct bpstats *bs, int print_frame)
{
/* Since this can be called when CLI command is executing,
using cli interpreter, be sure to use MI uiout for output,
not the current one. */
struct ui_out *mi_uiout = interp_ui_out (top_level_interpreter ());
if (print_frame)
{
int core;
if (current_uiout != mi_uiout)
{
/* The normal_stop function has printed frame information
into CLI uiout, or some other non-MI uiout. There's no
way we can extract proper fields from random uiout
object, so we print the frame again. In practice, this
can only happen when running a CLI command in MI. */
struct ui_out *saved_uiout = current_uiout;
struct target_waitstatus last;
ptid_t last_ptid;
current_uiout = mi_uiout;
get_last_target_status (&last_ptid, &last);
bpstat_print (bs, last.kind);
print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC, 1);
current_uiout = saved_uiout;
}
ui_out_field_int (mi_uiout, "thread-id",
pid_to_thread_id (inferior_ptid));
if (non_stop)
{
struct cleanup *back_to = make_cleanup_ui_out_list_begin_end
(mi_uiout, "stopped-threads");
ui_out_field_int (mi_uiout, NULL,
pid_to_thread_id (inferior_ptid));
do_cleanups (back_to);
}
else
ui_out_field_string (mi_uiout, "stopped-threads", "all");
core = target_core_of_thread (inferior_ptid);
if (core != -1)
ui_out_field_int (mi_uiout, "core", core);
}
fputs_unfiltered ("*stopped", raw_stdout);
mi_out_put (mi_uiout, raw_stdout);
mi_out_rewind (mi_uiout);
mi_print_timing_maybe ();
fputs_unfiltered ("\n", raw_stdout);
gdb_flush (raw_stdout);
}
int main(){
rbp_init=get_rbp();
rsp_init=get_rsp();
printf("stack pointer of main = %ld\n",rsp_init);
printf("frame pointer of main = %ld\n",rbp_init);
print_stack_frame();
// recur(1);
}
static void
record_btrace_goto_end (struct target_ops *ops)
{
struct thread_info *tp;
tp = require_btrace_thread ();
record_btrace_set_replay (tp, NULL);
print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
}
void print_stack_frame(){
static int rec=0;
if(!rec){
rec=1;
print_stack_frame();
}
uint64_t fp=getFP().rsp;
int64_t i;
for(i=-6;i<=6;i++){
printf("%%rsp+%ld=%ld\n",i*8,fp+(i*8));
printf("%ld(%%rsp)==%ld\n",i*8,*(uint64_t*)(fp+(i*8)));
}
}
static void
record_btrace_goto_begin (struct target_ops *self)
{
struct thread_info *tp;
struct btrace_insn_iterator begin;
tp = require_btrace_thread ();
btrace_insn_begin (&begin, &tp->btrace);
record_btrace_set_replay (tp, &begin);
print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
}
enum mi_cmd_result
mi_cmd_exec_return (char *args, int from_tty)
{
/* This command doesn't really execute the target, it just pops the
specified number of frames. */
if (*args)
/* Call return_command with from_tty argument equal to 0 so as to
avoid being queried. */
return_command (args, 0);
else
/* Call return_command with from_tty argument equal to 0 so as to
avoid being queried. */
return_command (NULL, 0);
/* Because we have called return_command with from_tty = 0, we need
to print the frame here. */
print_stack_frame (get_selected_frame (NULL), 1, LOC_AND_ADDRESS);
return MI_CMD_DONE;
}
static void
record_btrace_goto (struct target_ops *self, ULONGEST insn)
{
struct thread_info *tp;
struct btrace_insn_iterator it;
unsigned int number;
int found;
number = insn;
/* Check for wrap-arounds. */
if (number != insn)
error (_("Instruction number out of range."));
tp = require_btrace_thread ();
found = btrace_find_insn_by_number (&it, &tp->btrace, number);
if (found == 0)
error (_("No such instruction."));
record_btrace_set_replay (tp, &it);
print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
}
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);
}
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);
}
void
core_target_open (const char *arg, int from_tty)
{
const char *p;
int siggy;
int scratch_chan;
int flags;
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."));
}
gdb::unique_xmalloc_ptr<char> filename (tilde_expand (arg));
if (!IS_ABSOLUTE_PATH (filename.get ()))
filename.reset (concat (current_directory, "/",
filename.get (), (char *) NULL));
flags = O_BINARY | O_LARGEFILE;
if (write_files)
flags |= O_RDWR;
else
flags |= O_RDONLY;
scratch_chan = gdb_open_cloexec (filename.get (), flags, 0);
if (scratch_chan < 0)
perror_with_name (filename.get ());
gdb_bfd_ref_ptr temp_bfd (gdb_bfd_fopen (filename.get (), gnutarget,
write_files ? FOPEN_RUB : FOPEN_RB,
scratch_chan));
if (temp_bfd == NULL)
perror_with_name (filename.get ());
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.get (), bfd_errmsg (bfd_get_error ()));
}
current_program_space->cbfd = std::move (temp_bfd);
core_target *target = new core_target ();
/* Own the target until it is successfully pushed. */
target_ops_up target_holder (target);
validate_files ();
/* 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 (std::move (target_holder));
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 (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. */
thread_info *thread = first_thread_of_inferior (current_inferior ());
if (thread == NULL)
{
inferior_appeared (current_inferior (), CORELOW_PID);
inferior_ptid = ptid_t (CORELOW_PID);
add_thread_silent (inferior_ptid);
}
else
switch_to_thread (thread);
}
post_create_inferior (target, 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 (const gdb_exception_error &except)
{
exception_print (gdb_stderr, except);
}
p = bfd_core_file_failing_command (core_bfd);
if (p)
printf_filtered (_("Core was generated by `%s'.\n"), p);
/* Clearing any previous state of convenience variables. */
clear_exit_convenience_vars ();
siggy = bfd_core_file_failing_signal (core_bfd);
if (siggy > 0)
{
gdbarch *core_gdbarch = target->core_gdbarch ();
/* 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 %s, %s.\n"),
gdb_signal_to_name (sig), gdb_signal_to_string (sig));
/* Set the value of the internal variable $_exitsignal,
which holds the signal uncaught by the inferior. */
set_internalvar_integer (lookup_internalvar ("_exitsignal"),
siggy);
}
/* 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, 1);
/* Current thread should be NUM 1 but the user does not know that.
If a program is single threaded gdb in general does not mention
anything about threads. That is why the test is >= 2. */
if (thread_count () >= 2)
{
try
{
thread_command (NULL, from_tty);
}
catch (const gdb_exception_error &except)
{
exception_print (gdb_stderr, except);
}
}
}
static void
kgdb_trgt_open(char *filename, int from_tty)
{
struct cleanup *old_chain;
struct kthr *kt;
struct inferior *inf8;
struct program_space *pspace;
kvm_t *nkvm;
char *temp;
int first_inferior = 1;
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);
push_target (&kgdb_trgt_ops);
discard_cleanups (old_chain);
kgdb_dmesg();
init_thread_list();
kt = kgdb_thr_init();
while (kt != NULL) {
if (!in_inferior_list(kt->pid)) {
if (first_inferior) {
first_inferior = 0;
inf8 = current_inferior();
inf8->pid = kt->pid;
inferior_appeared (inf8, kt->pid);
pspace = current_program_space;
pspace->ebfd = 0;
pspace->ebfd_mtime = 0;
} else {
inf8 = add_inferior(kt->pid);
pspace = add_program_space(new_address_space());
pspace->symfile_object_file = symfile_objfile;
pspace->objfiles = object_files;
}
inf8->pspace = pspace;
inf8->aspace = pspace->aspace;
}
add_thread(ptid_build(kt->pid, 0, kt->tid));
kt = kgdb_thr_next(kt);
}
if (curkthr != 0)
inferior_ptid = ptid_build(curkthr->pid, 0, curkthr->tid);
frame_unwind_prepend_unwinder(get_frame_arch(get_current_frame()), &kgdb_trgt_trapframe_unwind);
/* XXX: fetch registers? */
kld_init();
reinit_frame_cache();
select_frame (get_current_frame());
print_stack_frame(get_selected_frame(NULL),
frame_relative_level(get_selected_frame(NULL)), 1);
}
