/* Darwin support for GDB, the GNU debugger.
- Copyright (C) 2008-2017 Free Software Foundation, Inc.
+ Copyright (C) 2008-2019 Free Software Foundation, Inc.
Contributed by AdaCore.
#include "bfd.h"
#include "bfd/mach-o.h"
+#include <copyfile.h>
#include <sys/ptrace.h>
#include <sys/signal.h>
#include <setjmp.h>
#include <mach/port.h>
#include "darwin-nat.h"
+#include "filenames.h"
#include "common/filestuff.h"
+#include "common/gdb_unlinker.h"
+#include "common/pathstuff.h"
+#include "common/scoped_fd.h"
#include "nat/fork-inferior.h"
/* Quick overview.
#define PTRACE(CMD, PID, ADDR, SIG) \
darwin_ptrace(#CMD, CMD, (PID), (ADDR), (SIG))
-static void darwin_interrupt (struct target_ops *self, ptid_t);
-
-static void darwin_resume_to (struct target_ops *ops, ptid_t ptid, int step,
- enum gdb_signal signal);
-static void darwin_resume (ptid_t ptid, int step,
- enum gdb_signal signal);
-
-static ptid_t darwin_wait_to (struct target_ops *ops, ptid_t ptid,
- struct target_waitstatus *status, int options);
static ptid_t darwin_wait (ptid_t ptid, struct target_waitstatus *status);
-static void darwin_mourn_inferior (struct target_ops *ops);
-
-static void darwin_kill_inferior (struct target_ops *ops);
-
static void darwin_ptrace_me (void);
static void darwin_ptrace_him (int pid);
-static void darwin_create_inferior (struct target_ops *ops,
- const char *exec_file,
- const std::string &allargs,
- char **env, int from_tty);
-
-static void darwin_files_info (struct target_ops *ops);
-
-static const char *darwin_pid_to_str (struct target_ops *ops, ptid_t tpid);
-
-static int darwin_thread_alive (struct target_ops *ops, ptid_t tpid);
-
static void darwin_encode_reply (mig_reply_error_t *reply,
mach_msg_header_t *hdr, integer_t code);
static void darwin_setup_exceptions (struct inferior *inf);
static void darwin_deallocate_threads (struct inferior *inf);
-/* Target operations for Darwin. */
-static struct target_ops *darwin_ops;
-
/* Task identifier of gdb. */
static task_t gdb_task;
/* Inferior that should report a fake stop event. */
static struct inferior *darwin_inf_fake_stop;
+/* If non-NULL, the shell we actually invoke. See maybe_cache_shell
+ for details. */
+static const char *copied_shell;
+
#define PAGE_TRUNC(x) ((x) & ~(mach_page_size - 1))
#define PAGE_ROUND(x) PAGE_TRUNC((x) + mach_page_size - 1)
darwin_check_new_threads (struct inferior *inf)
{
kern_return_t kret;
- unsigned int i;
thread_array_t thread_list;
unsigned int new_nbr;
unsigned int old_nbr;
unsigned int new_ix, old_ix;
- darwin_inferior *darwin_inf = inf->priv;
- VEC (darwin_thread_t) *thread_vec;
+ darwin_inferior *darwin_inf = get_darwin_inferior (inf);
+ std::vector<darwin_thread_t *> new_thread_vec;
+
+ if (darwin_inf == nullptr)
+ return;
/* Get list of threads. */
kret = task_threads (darwin_inf->task, &thread_list, &new_nbr);
if (new_nbr > 1)
qsort (thread_list, new_nbr, sizeof (thread_t), cmp_thread_t);
- if (darwin_inf->threads)
- old_nbr = VEC_length (darwin_thread_t, darwin_inf->threads);
- else
- old_nbr = 0;
+ old_nbr = darwin_inf->threads.size ();
/* Quick check for no changes. */
if (old_nbr == new_nbr)
{
+ size_t i;
+
for (i = 0; i < new_nbr; i++)
- if (thread_list[i]
- != VEC_index (darwin_thread_t, darwin_inf->threads, i)->gdb_port)
+ if (thread_list[i] != darwin_inf->threads[i]->gdb_port)
break;
if (i == new_nbr)
{
}
/* Full handling: detect new threads, remove dead threads. */
- thread_vec = VEC_alloc (darwin_thread_t, new_nbr);
+
+ new_thread_vec.reserve (new_nbr);
for (new_ix = 0, old_ix = 0; new_ix < new_nbr || old_ix < old_nbr;)
{
- thread_t new_id = (new_ix < new_nbr) ?
- thread_list[new_ix] : THREAD_NULL;
- darwin_thread_t *old = (old_ix < old_nbr) ?
- VEC_index (darwin_thread_t, darwin_inf->threads, old_ix) : NULL;
- thread_t old_id = old ? old->gdb_port : THREAD_NULL;
+ thread_t new_id = (new_ix < new_nbr) ? thread_list[new_ix] : THREAD_NULL;
+ darwin_thread_t *old
+ = (old_ix < old_nbr) ? darwin_inf->threads[old_ix] : NULL;
+ thread_t old_id = old != NULL ? old->gdb_port : THREAD_NULL;
inferior_debug
(12, _(" new_ix:%d/%d, old_ix:%d/%d, new_id:0x%x old_id:0x%x\n"),
if (old_id == new_id)
{
/* Thread still exist. */
- VEC_safe_push (darwin_thread_t, thread_vec, old);
+ new_thread_vec.push_back (old);
new_ix++;
old_ix++;
if (new_ix < new_nbr && (old_ix == old_nbr || new_id < old_id))
{
/* A thread was created. */
- struct private_thread_info *pti;
+ darwin_thread_info *pti = new darwin_thread_info;
- pti = XCNEW (struct private_thread_info);
pti->gdb_port = new_id;
pti->msg_state = DARWIN_RUNNING;
/* Add the new thread. */
- add_thread_with_info (ptid_build (inf->pid, 0, new_id), pti);
- VEC_safe_push (darwin_thread_t, thread_vec, pti);
+ add_thread_with_info (ptid_t (inf->pid, 0, new_id), pti);
+ new_thread_vec.push_back (pti);
new_ix++;
continue;
}
if (old_ix < old_nbr && (new_ix == new_nbr || new_id > old_id))
{
/* A thread was removed. */
- delete_thread (ptid_build (inf->pid, 0, old_id));
+ struct thread_info *thr
+ = find_thread_ptid (ptid_t (inf->pid, 0, old_id));
+ delete_thread (thr);
kret = mach_port_deallocate (gdb_task, old_id);
MACH_CHECK_ERROR (kret);
old_ix++;
gdb_assert_not_reached ("unexpected thread case");
}
- if (darwin_inf->threads)
- VEC_free (darwin_thread_t, darwin_inf->threads);
- darwin_inf->threads = thread_vec;
+ darwin_inf->threads = std::move (new_thread_vec);
/* Deallocate the buffer. */
kret = vm_deallocate (gdb_task, (vm_address_t) thread_list,
static int
find_inferior_task_it (struct inferior *inf, void *port_ptr)
{
- return inf->priv->task == *(task_t *)port_ptr;
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ return priv != nullptr && priv->task == *(task_t *)port_ptr;
}
static int
static darwin_thread_t *
darwin_find_thread (struct inferior *inf, thread_t thread)
{
- darwin_thread_t *t;
- int k;
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ if (priv != nullptr)
+ for (darwin_thread_t *t : priv->threads)
+ {
+ if (t->gdb_port == thread)
+ return t;
+ }
- for (k = 0;
- VEC_iterate (darwin_thread_t, inf->priv->threads, k, t);
- k++)
- if (t->gdb_port == thread)
- return t;
return NULL;
}
static void
darwin_suspend_inferior (struct inferior *inf)
{
- if (!inf->priv->suspended)
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ if (priv != nullptr && !priv->suspended)
{
kern_return_t kret;
- kret = task_suspend (inf->priv->task);
+ kret = task_suspend (priv->task);
MACH_CHECK_ERROR (kret);
- inf->priv->suspended = 1;
+ priv->suspended = 1;
}
}
static void
darwin_resume_inferior (struct inferior *inf)
{
- if (inf->priv->suspended)
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ if (priv != nullptr && priv->suspended)
{
kern_return_t kret;
- kret = task_resume (inf->priv->task);
+ kret = task_resume (priv->task);
MACH_CHECK_ERROR (kret);
- inf->priv->suspended = 0;
+ priv->suspended = 0;
}
}
if (inf == NULL)
return NULL;
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
/* Deallocate saved exception ports. */
- darwin_deallocate_exception_ports (inf->priv);
+ darwin_deallocate_exception_ports (priv);
/* No need to remove dead_name notification, but still... */
- kret = mach_port_request_notification (gdb_task, inf->priv->task,
+ kret = mach_port_request_notification (gdb_task, priv->task,
MACH_NOTIFY_DEAD_NAME, 0,
MACH_PORT_NULL,
MACH_MSG_TYPE_MAKE_SEND_ONCE,
MACH_CHECK_ERROR (kret);
/* Replace old task port. */
- kret = mach_port_deallocate (gdb_task, inf->priv->task);
+ kret = mach_port_deallocate (gdb_task, priv->task);
MACH_CHECK_ERROR (kret);
- inf->priv->task = task_port;
+ priv->task = task_port;
darwin_setup_request_notification (inf);
darwin_setup_exceptions (inf);
NDR_record_t *ndr = (NDR_record_t *)(hdr + 1);
integer_t *data = (integer_t *)(ndr + 1);
struct inferior *inf;
- darwin_thread_t *thread;
task_t task_port;
- thread_t thread_port;
- kern_return_t kret;
- int i;
/* Check message header. */
if (hdr->msgh_bits & MACH_MSGH_BITS_COMPLEX)
*pinf = inf;
/* Check message destination. */
- if (inf != NULL && hdr->msgh_local_port != inf->priv->notify_port)
- return -4;
+ if (inf != NULL)
+ {
+ darwin_inferior *priv = get_darwin_inferior (inf);
+ if (hdr->msgh_local_port != priv->notify_port)
+ return -4;
+ }
return 0;
}
{
kern_return_t kret;
mig_reply_error_t reply;
+ darwin_inferior *priv = get_darwin_inferior (inf);
darwin_encode_reply (&reply, &thread->event.header, KERN_SUCCESS);
MACH_PORT_NULL);
MACH_CHECK_ERROR (kret);
- inf->priv->pending_messages--;
+ priv->pending_messages--;
+}
+
+/* Wrapper around the __pthread_kill syscall. We use this instead of the
+ pthread_kill function to be able to send a signal to any kind of thread,
+ including GCD threads. */
+
+static int
+darwin_pthread_kill (darwin_thread_t *thread, int nsignal)
+{
+ DIAGNOSTIC_PUSH;
+ DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS;
+ int res = syscall (SYS___pthread_kill, thread->gdb_port, nsignal);
+ DIAGNOSTIC_POP;
+ return res;
}
static void
darwin_resume_thread (struct inferior *inf, darwin_thread_t *thread,
int step, int nsignal)
{
- kern_return_t kret;
- int res;
-
inferior_debug
(3, _("darwin_resume_thread: state=%d, thread=0x%x, step=%d nsignal=%d\n"),
thread->msg_state, thread->gdb_port, step, nsignal);
&& thread->event.ex_data[0] == EXC_SOFT_SIGNAL)
{
/* Either deliver a new signal or cancel the signal received. */
- res = PTRACE (PT_THUPDATE, inf->pid,
- (caddr_t) (uintptr_t) thread->gdb_port, nsignal);
+ int res = PTRACE (PT_THUPDATE, inf->pid,
+ (caddr_t) (uintptr_t) thread->gdb_port, nsignal);
if (res < 0)
inferior_debug (1, _("ptrace THUP: res=%d\n"), res);
}
{
/* Note: ptrace is allowed only if the process is stopped.
Directly send the signal to the thread. */
- res = syscall (SYS___pthread_kill, thread->gdb_port, nsignal);
+ int res = darwin_pthread_kill (thread, nsignal);
inferior_debug (4, _("darwin_resume_thread: kill 0x%x %d: %d\n"),
thread->gdb_port, nsignal, res);
thread->signaled = 1;
break;
case DARWIN_STOPPED:
- kret = thread_resume (thread->gdb_port);
+ kern_return_t kret = thread_resume (thread->gdb_port);
MACH_CHECK_ERROR (kret);
thread->msg_state = DARWIN_RUNNING;
static void
darwin_resume_inferior_threads (struct inferior *inf, int step, int nsignal)
{
- darwin_thread_t *thread;
- int k;
+ darwin_inferior *priv = get_darwin_inferior (inf);
- for (k = 0;
- VEC_iterate (darwin_thread_t, inf->priv->threads, k, thread);
- k++)
- darwin_resume_thread (inf, thread, step, nsignal);
+ if (priv != nullptr)
+ for (darwin_thread_t *thread : priv->threads)
+ darwin_resume_thread (inf, thread, step, nsignal);
}
struct resume_inferior_threads_param
static void
darwin_suspend_inferior_threads (struct inferior *inf)
{
- darwin_thread_t *thread;
- kern_return_t kret;
- int k;
+ darwin_inferior *priv = get_darwin_inferior (inf);
- for (k = 0;
- VEC_iterate (darwin_thread_t, inf->priv->threads, k, thread);
- k++)
- switch (thread->msg_state)
- {
- case DARWIN_STOPPED:
- case DARWIN_MESSAGE:
- break;
- case DARWIN_RUNNING:
- kret = thread_suspend (thread->gdb_port);
- MACH_CHECK_ERROR (kret);
- thread->msg_state = DARWIN_STOPPED;
- break;
- }
+ for (darwin_thread_t *thread : priv->threads)
+ {
+ switch (thread->msg_state)
+ {
+ case DARWIN_STOPPED:
+ case DARWIN_MESSAGE:
+ break;
+ case DARWIN_RUNNING:
+ {
+ kern_return_t kret = thread_suspend (thread->gdb_port);
+ MACH_CHECK_ERROR (kret);
+ thread->msg_state = DARWIN_STOPPED;
+ break;
+ }
+ }
+ }
}
-static void
-darwin_resume (ptid_t ptid, int step, enum gdb_signal signal)
+void
+darwin_nat_target::resume (ptid_t ptid, int step, enum gdb_signal signal)
{
struct target_waitstatus status;
- int pid;
- kern_return_t kret;
- int res;
int nsignal;
- struct inferior *inf;
inferior_debug
(2, _("darwin_resume: pid=%d, tid=0x%lx, step=%d, signal=%d\n"),
- ptid_get_pid (ptid), ptid_get_tid (ptid), step, signal);
+ ptid.pid (), ptid.tid (), step, signal);
if (signal == GDB_SIGNAL_0)
nsignal = 0;
ptid = inferior_ptid;
/* minus_one_ptid is RESUME_ALL. */
- if (ptid_equal (ptid, minus_one_ptid))
+ if (ptid == minus_one_ptid)
{
struct resume_inferior_threads_param param;
else
{
struct inferior *inf = find_inferior_ptid (ptid);
- long tid = ptid_get_tid (ptid);
+ long tid = ptid.tid ();
/* Stop the inferior (should be useless). */
darwin_suspend_inferior (inf);
}
}
-static void
-darwin_resume_to (struct target_ops *ops, ptid_t ptid, int step,
- enum gdb_signal signal)
-{
- return darwin_resume (ptid, step, signal);
-}
-
static ptid_t
darwin_decode_message (mach_msg_header_t *hdr,
darwin_thread_t **pthread,
}
*pinf = inf;
*pthread = thread;
- inf->priv->pending_messages++;
+
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ priv->pending_messages++;
status->kind = TARGET_WAITKIND_STOPPED;
thread->msg_state = DARWIN_MESSAGE;
break;
}
- return ptid_build (inf->pid, 0, thread->gdb_port);
+ return ptid_t (inf->pid, 0, thread->gdb_port);
}
else if (hdr->msgh_id == 0x48)
{
if (inf != NULL)
{
- if (!inf->priv->no_ptrace)
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ if (!priv->no_ptrace)
{
pid_t res;
int wstatus;
/* Looks necessary on Leopard and harmless... */
wait4 (inf->pid, &wstatus, 0, NULL);
- inferior_ptid = ptid_build (inf->pid, 0, 0);
+ inferior_ptid = ptid_t (inf->pid, 0, 0);
return inferior_ptid;
}
else
inferior_debug (4, _("darwin_wait: pid=%d\n"), inf->pid);
status->kind = TARGET_WAITKIND_EXITED;
status->value.integer = 0; /* Don't know. */
- return ptid_build (inf->pid, 0, 0);
+ return ptid_t (inf->pid, 0, 0);
}
}
}
if (breakpoint_inserted_here_p (regcache->aspace (), pc))
{
inferior_debug (4, "cancel_breakpoint for thread 0x%lx\n",
- (unsigned long) ptid_get_tid (ptid));
+ (unsigned long) ptid.tid ());
/* Back up the PC if necessary. */
if (gdbarch_decr_pc_after_break (gdbarch))
inferior_debug
(2, _("darwin_wait: waiting for a message pid=%d thread=%lx\n"),
- ptid_get_pid (ptid), ptid_get_tid (ptid));
+ ptid.pid (), ptid.tid ());
/* Handle fake stop events at first. */
if (darwin_inf_fake_stop != NULL)
inf = darwin_inf_fake_stop;
darwin_inf_fake_stop = NULL;
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
status->kind = TARGET_WAITKIND_STOPPED;
status->value.sig = GDB_SIGNAL_TRAP;
- thread = VEC_index (darwin_thread_t, inf->priv->threads, 0);
+ thread = priv->threads[0];
thread->msg_state = DARWIN_STOPPED;
- return ptid_build (inf->pid, 0, thread->gdb_port);
+ return ptid_t (inf->pid, 0, thread->gdb_port);
}
do
darwin_dump_message (hdr, darwin_debug_flag > 11);
res = darwin_decode_message (hdr, &thread, &inf, status);
- if (ptid_equal (res, minus_one_ptid))
+ if (res == minus_one_ptid)
continue;
/* Early return in case an inferior has exited. */
&& thread->event.ex_type == EXC_BREAKPOINT)
{
if (thread->single_step
- || cancel_breakpoint (ptid_build (inf->pid, 0, thread->gdb_port)))
+ || cancel_breakpoint (ptid_t (inf->pid, 0, thread->gdb_port)))
{
gdb_assert (thread->msg_state == DARWIN_MESSAGE);
darwin_send_reply (inf, thread);
return res;
}
-static ptid_t
-darwin_wait_to (struct target_ops *ops,
- ptid_t ptid, struct target_waitstatus *status, int options)
+ptid_t
+darwin_nat_target::wait (ptid_t ptid, struct target_waitstatus *status,
+ int options)
{
return darwin_wait (ptid, status);
}
-static void
-darwin_interrupt (struct target_ops *self, ptid_t t)
+void
+darwin_nat_target::interrupt ()
{
struct inferior *inf = current_inferior ();
+ darwin_inferior *priv = get_darwin_inferior (inf);
/* FIXME: handle in no_ptrace mode. */
- gdb_assert (!inf->priv->no_ptrace);
- kill (inf->pid, SIGINT);
+ gdb_assert (!priv->no_ptrace);
+ ::kill (inf->pid, SIGINT);
}
/* Deallocate threads port and vector. */
static void
darwin_deallocate_threads (struct inferior *inf)
{
- if (inf->priv->threads)
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ for (darwin_thread_t *t : priv->threads)
{
- kern_return_t kret;
- int k;
- darwin_thread_t *t;
- for (k = 0;
- VEC_iterate (darwin_thread_t, inf->priv->threads, k, t);
- k++)
- {
- kret = mach_port_deallocate (gdb_task, t->gdb_port);
- MACH_CHECK_ERROR (kret);
- }
- VEC_free (darwin_thread_t, inf->priv->threads);
- inf->priv->threads = NULL;
+ kern_return_t kret = mach_port_deallocate (gdb_task, t->gdb_port);
+ MACH_CHECK_ERROR (kret);
}
+
+ priv->threads.clear ();
}
-static void
-darwin_mourn_inferior (struct target_ops *ops)
+void
+darwin_nat_target::mourn_inferior ()
{
struct inferior *inf = current_inferior ();
+ darwin_inferior *priv = get_darwin_inferior (inf);
kern_return_t kret;
mach_port_t prev;
- int i;
/* Deallocate threads. */
darwin_deallocate_threads (inf);
/* Remove notify_port from darwin_port_set. */
kret = mach_port_move_member (gdb_task,
- inf->priv->notify_port, MACH_PORT_NULL);
+ priv->notify_port, MACH_PORT_NULL);
MACH_CHECK_ERROR (kret);
/* Remove task port dead_name notification. */
- kret = mach_port_request_notification (gdb_task, inf->priv->task,
+ kret = mach_port_request_notification (gdb_task, priv->task,
MACH_NOTIFY_DEAD_NAME, 0,
MACH_PORT_NULL,
MACH_MSG_TYPE_MAKE_SEND_ONCE,
&prev);
/* This can fail if the task is dead. */
inferior_debug (4, "task=0x%x, prev=0x%x, notify_port=0x%x\n",
- inf->priv->task, prev, inf->priv->notify_port);
+ priv->task, prev, priv->notify_port);
if (kret == KERN_SUCCESS)
{
}
/* Destroy notify_port. */
- kret = mach_port_destroy (gdb_task, inf->priv->notify_port);
+ kret = mach_port_destroy (gdb_task, priv->notify_port);
MACH_CHECK_ERROR (kret);
/* Deallocate saved exception ports. */
- darwin_deallocate_exception_ports (inf->priv);
+ darwin_deallocate_exception_ports (priv);
/* Deallocate task port. */
- kret = mach_port_deallocate (gdb_task, inf->priv->task);
+ kret = mach_port_deallocate (gdb_task, priv->task);
MACH_CHECK_ERROR (kret);
- xfree (inf->priv);
inf->priv = NULL;
- inf_child_mourn_inferior (ops);
+ inf_child_target::mourn_inferior ();
}
static void
darwin_reply_to_all_pending_messages (struct inferior *inf)
{
- int k;
- darwin_thread_t *t;
+ darwin_inferior *priv = get_darwin_inferior (inf);
- for (k = 0;
- VEC_iterate (darwin_thread_t, inf->priv->threads, k, t);
- k++)
+ for (darwin_thread_t *t : priv->threads)
{
if (t->msg_state == DARWIN_MESSAGE)
darwin_resume_thread (inf, t, 0, 0);
{
struct target_waitstatus wstatus;
ptid_t ptid;
- kern_return_t kret;
- int status;
int res;
+ darwin_inferior *priv = get_darwin_inferior (inf);
gdb_assert (inf != NULL);
darwin_reply_to_all_pending_messages (inf);
- if (inf->priv->no_ptrace)
+ if (priv->no_ptrace)
return;
res = kill (inf->pid, SIGSTOP);
static void
darwin_setup_exceptions (struct inferior *inf)
{
+ darwin_inferior *priv = get_darwin_inferior (inf);
kern_return_t kret;
- int traps_expected;
exception_mask_t mask;
- kret = darwin_save_exception_ports (inf->priv);
+ kret = darwin_save_exception_ports (priv);
if (kret != KERN_SUCCESS)
error (_("Unable to save exception ports, task_get_exception_ports"
"returned: %d"),
mask = EXC_MASK_ALL;
else
mask = EXC_MASK_SOFTWARE | EXC_MASK_BREAKPOINT;
- kret = task_set_exception_ports (inf->priv->task, mask, darwin_ex_port,
+ kret = task_set_exception_ports (priv->task, mask, darwin_ex_port,
EXCEPTION_DEFAULT, THREAD_STATE_NONE);
if (kret != KERN_SUCCESS)
error (_("Unable to set exception ports, task_set_exception_ports"
kret);
}
-static void
-darwin_kill_inferior (struct target_ops *ops)
+void
+darwin_nat_target::kill ()
{
struct inferior *inf = current_inferior ();
+ darwin_inferior *priv = get_darwin_inferior (inf);
struct target_waitstatus wstatus;
ptid_t ptid;
kern_return_t kret;
- int status;
int res;
- if (ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid == null_ptid)
return;
gdb_assert (inf != NULL);
- kret = darwin_restore_exception_ports (inf->priv);
+ kret = darwin_restore_exception_ports (priv);
MACH_CHECK_ERROR (kret);
darwin_reply_to_all_pending_messages (inf);
- res = kill (inf->pid, 9);
+ res = ::kill (inf->pid, 9);
if (res == 0)
{
+ /* On MacOS version Sierra, the darwin_restore_exception_ports call
+ does not work as expected.
+ When the kill function is called, the SIGKILL signal is received
+ by gdb whereas it should have been received by the kernel since
+ the exception ports have been restored.
+ This behavior is not the expected one thus gdb does not reply to
+ the received SIGKILL message. This situation leads to a "busy"
+ resource from the kernel point of view and the inferior is never
+ released, causing it to remain as a zombie process, even after
+ GDB exits.
+ To work around this, we mark all the threads of the inferior as
+ signaled thus darwin_decode_message function knows that the kill
+ signal was sent by gdb and will take the appropriate action
+ (cancel signal and reply to the signal message). */
+ darwin_inferior *priv = get_darwin_inferior (inf);
+ for (darwin_thread_t *thread : priv->threads)
+ thread->signaled = 1;
+
darwin_resume_inferior (inf);
ptid = darwin_wait (inferior_ptid, &wstatus);
static void
darwin_setup_request_notification (struct inferior *inf)
{
+ darwin_inferior *priv = get_darwin_inferior (inf);
kern_return_t kret;
mach_port_t prev_not;
- kret = mach_port_request_notification (gdb_task, inf->priv->task,
+ kret = mach_port_request_notification (gdb_task, priv->task,
MACH_NOTIFY_DEAD_NAME, 0,
- inf->priv->notify_port,
+ priv->notify_port,
MACH_MSG_TYPE_MAKE_SEND_ONCE,
&prev_not);
if (kret != KERN_SUCCESS)
darwin_attach_pid (struct inferior *inf)
{
kern_return_t kret;
- mach_port_t prev_port;
- int traps_expected;
- mach_port_t prev_not;
- exception_mask_t mask;
- inf->priv = XCNEW (darwin_inferior);
+ darwin_inferior *priv = new darwin_inferior;
+ inf->priv.reset (priv);
- kret = task_for_pid (gdb_task, inf->pid, &inf->priv->task);
- if (kret != KERN_SUCCESS)
+ TRY
{
- int status;
-
- if (!inf->attach_flag)
+ kret = task_for_pid (gdb_task, inf->pid, &priv->task);
+ if (kret != KERN_SUCCESS)
{
- kill (inf->pid, 9);
- waitpid (inf->pid, &status, 0);
- }
+ int status;
+
+ if (!inf->attach_flag)
+ {
+ kill (inf->pid, 9);
+ waitpid (inf->pid, &status, 0);
+ }
- error (_("Unable to find Mach task port for process-id %d: %s (0x%lx).\n"
+ error
+ (_("Unable to find Mach task port for process-id %d: %s (0x%lx).\n"
" (please check gdb is codesigned - see taskgated(8))"),
- inf->pid, mach_error_string (kret), (unsigned long) kret);
- }
+ inf->pid, mach_error_string (kret), (unsigned long) kret);
+ }
- inferior_debug (2, _("inferior task: 0x%x, pid: %d\n"),
- inf->priv->task, inf->pid);
+ inferior_debug (2, _("inferior task: 0x%x, pid: %d\n"),
+ priv->task, inf->pid);
- if (darwin_ex_port == MACH_PORT_NULL)
- {
- /* Create a port to get exceptions. */
- kret = mach_port_allocate (gdb_task, MACH_PORT_RIGHT_RECEIVE,
- &darwin_ex_port);
- if (kret != KERN_SUCCESS)
- error (_("Unable to create exception port, mach_port_allocate "
- "returned: %d"),
- kret);
+ if (darwin_ex_port == MACH_PORT_NULL)
+ {
+ /* Create a port to get exceptions. */
+ kret = mach_port_allocate (gdb_task, MACH_PORT_RIGHT_RECEIVE,
+ &darwin_ex_port);
+ if (kret != KERN_SUCCESS)
+ error (_("Unable to create exception port, mach_port_allocate "
+ "returned: %d"),
+ kret);
- kret = mach_port_insert_right (gdb_task, darwin_ex_port, darwin_ex_port,
- MACH_MSG_TYPE_MAKE_SEND);
- if (kret != KERN_SUCCESS)
- error (_("Unable to create exception port, mach_port_insert_right "
- "returned: %d"),
- kret);
+ kret = mach_port_insert_right (gdb_task, darwin_ex_port,
+ darwin_ex_port,
+ MACH_MSG_TYPE_MAKE_SEND);
+ if (kret != KERN_SUCCESS)
+ error (_("Unable to create exception port, mach_port_insert_right "
+ "returned: %d"),
+ kret);
+
+ /* Create a port set and put ex_port in it. */
+ kret = mach_port_allocate (gdb_task, MACH_PORT_RIGHT_PORT_SET,
+ &darwin_port_set);
+ if (kret != KERN_SUCCESS)
+ error (_("Unable to create port set, mach_port_allocate "
+ "returned: %d"),
+ kret);
- /* Create a port set and put ex_port in it. */
- kret = mach_port_allocate (gdb_task, MACH_PORT_RIGHT_PORT_SET,
- &darwin_port_set);
+ kret = mach_port_move_member (gdb_task, darwin_ex_port,
+ darwin_port_set);
+ if (kret != KERN_SUCCESS)
+ error (_("Unable to move exception port into new port set, "
+ "mach_port_move_member\n"
+ "returned: %d"),
+ kret);
+ }
+
+ /* Create a port to be notified when the child task terminates. */
+ kret = mach_port_allocate (gdb_task, MACH_PORT_RIGHT_RECEIVE,
+ &priv->notify_port);
if (kret != KERN_SUCCESS)
- error (_("Unable to create port set, mach_port_allocate "
+ error (_("Unable to create notification port, mach_port_allocate "
"returned: %d"),
kret);
- kret = mach_port_move_member (gdb_task, darwin_ex_port, darwin_port_set);
+ kret = mach_port_move_member (gdb_task,
+ priv->notify_port, darwin_port_set);
if (kret != KERN_SUCCESS)
- error (_("Unable to move exception port into new port set, "
+ error (_("Unable to move notification port into new port set, "
"mach_port_move_member\n"
"returned: %d"),
kret);
- }
- /* Create a port to be notified when the child task terminates. */
- kret = mach_port_allocate (gdb_task, MACH_PORT_RIGHT_RECEIVE,
- &inf->priv->notify_port);
- if (kret != KERN_SUCCESS)
- error (_("Unable to create notification port, mach_port_allocate "
- "returned: %d"),
- kret);
-
- kret = mach_port_move_member (gdb_task,
- inf->priv->notify_port, darwin_port_set);
- if (kret != KERN_SUCCESS)
- error (_("Unable to move notification port into new port set, "
- "mach_port_move_member\n"
- "returned: %d"),
- kret);
+ darwin_setup_request_notification (inf);
- darwin_setup_request_notification (inf);
+ darwin_setup_exceptions (inf);
+ }
+ CATCH (ex, RETURN_MASK_ALL)
+ {
+ exit_inferior (inf);
+ inferior_ptid = null_ptid;
- darwin_setup_exceptions (inf);
+ throw_exception (ex);
+ }
+ END_CATCH
+ target_ops *darwin_ops = get_native_target ();
if (!target_is_pushed (darwin_ops))
push_target (darwin_ops);
}
-/* Get the thread_info object corresponding to this private_thread_info. */
+/* Get the thread_info object corresponding to this darwin_thread_info. */
static struct thread_info *
-thread_info_from_private_thread_info (private_thread_info *pti)
+thread_info_from_private_thread_info (darwin_thread_info *pti)
{
- struct thread_info *it;
-
- ALL_THREADS (it)
+ for (struct thread_info *it : all_threads ())
{
- if (it->priv->gdb_port == pti->gdb_port)
- break;
- }
+ darwin_thread_info *iter_pti = get_darwin_thread_info (it);
- gdb_assert (it != NULL);
+ if (iter_pti->gdb_port == pti->gdb_port)
+ return it;
+ }
- return it;
+ gdb_assert_not_reached ("did not find gdb thread for darwin thread");
}
static void
{
darwin_check_new_threads (inf);
- gdb_assert (inf->priv->threads != NULL);
- gdb_assert (VEC_length (darwin_thread_t, inf->priv->threads) > 0);
+ darwin_inferior *priv = get_darwin_inferior (inf);
- private_thread_info *first_pti
- = VEC_index (darwin_thread_t, inf->priv->threads, 0);
+ gdb_assert (!priv->threads.empty ());
+
+ darwin_thread_info *first_pti = priv->threads.front ();
struct thread_info *first_thread
= thread_info_from_private_thread_info (first_pti);
static void
darwin_ptrace_him (int pid)
{
- task_t itask;
- kern_return_t kret;
- mach_port_t prev_port;
- int traps_expected;
struct inferior *inf = current_inferior ();
darwin_attach_pid (inf);
posix_spawnp (NULL, argv[0], NULL, &attr, argv, env);
}
+/* Read kernel version, and return TRUE if this host may have System
+ Integrity Protection (Sierra or later). */
+
+static bool
+may_have_sip ()
+{
+ char str[16];
+ size_t sz = sizeof (str);
+ int ret;
+
+ ret = sysctlbyname ("kern.osrelease", str, &sz, NULL, 0);
+ if (ret == 0 && sz < sizeof (str))
+ {
+ unsigned long ver = strtoul (str, NULL, 10);
+ if (ver >= 16)
+ return true;
+ }
+ return false;
+}
+
+/* A helper for maybe_cache_shell. This copies the shell to the
+ cache. It will throw an exception on any failure. */
+
static void
-darwin_create_inferior (struct target_ops *ops,
- const char *exec_file,
- const std::string &allargs,
- char **env, int from_tty)
+copy_shell_to_cache (const char *shell, const std::string &new_name)
+{
+ scoped_fd from_fd (gdb_open_cloexec (shell, O_RDONLY, 0));
+ if (from_fd.get () < 0)
+ error (_("Could not open shell (%s) for reading: %s"),
+ shell, safe_strerror (errno));
+
+ std::string new_dir = ldirname (new_name.c_str ());
+ if (!mkdir_recursive (new_dir.c_str ()))
+ error (_("Could not make cache directory \"%s\": %s"),
+ new_dir.c_str (), safe_strerror (errno));
+
+ gdb::char_vector temp_name = make_temp_filename (new_name);
+ scoped_fd to_fd (gdb_mkostemp_cloexec (&temp_name[0]));
+ gdb::unlinker unlink_file_on_error (temp_name.data ());
+
+ if (to_fd.get () < 0)
+ error (_("Could not open temporary file \"%s\" for writing: %s"),
+ temp_name.data (), safe_strerror (errno));
+
+ if (fcopyfile (from_fd.get (), to_fd.get (), nullptr,
+ COPYFILE_STAT | COPYFILE_DATA) != 0)
+ error (_("Could not copy shell to cache as \"%s\": %s"),
+ temp_name.data (), safe_strerror (errno));
+
+ /* Be sure that the caching is atomic so that we don't get bad
+ results from multiple copies of gdb running at the same time. */
+ if (rename (temp_name.data (), new_name.c_str ()) != 0)
+ error (_("Could not rename shell cache file to \"%s\": %s"),
+ new_name.c_str (), safe_strerror (errno));
+
+ unlink_file_on_error.keep ();
+}
+
+/* If $SHELL is restricted, try to cache a copy. Starting with El
+ Capitan, macOS introduced System Integrity Protection. Among other
+ things, this prevents certain executables from being ptrace'd. In
+ particular, executables in /bin, like most shells, are affected.
+ To work around this, while preserving command-line glob expansion
+ and redirections, gdb will cache a copy of the shell. Return true
+ if all is well -- either the shell is not subject to SIP or it has
+ been successfully cached. Returns false if something failed. */
+
+static bool
+maybe_cache_shell ()
+{
+ /* SF_RESTRICTED is defined in sys/stat.h and lets us determine if a
+ given file is subject to SIP. */
+#ifdef SF_RESTRICTED
+
+ /* If a check fails we want to revert -- maybe the user deleted the
+ cache while gdb was running, or something like that. */
+ copied_shell = nullptr;
+
+ const char *shell = get_shell ();
+ if (!IS_ABSOLUTE_PATH (shell))
+ {
+ warning (_("This version of macOS has System Integrity Protection.\n\
+Normally gdb would try to work around this by caching a copy of your shell,\n\
+but because your shell (%s) is not an absolute path, this is being skipped."),
+ shell);
+ return false;
+ }
+
+ struct stat sb;
+ if (stat (shell, &sb) < 0)
+ {
+ warning (_("This version of macOS has System Integrity Protection.\n\
+Normally gdb would try to work around this by caching a copy of your shell,\n\
+but because gdb could not stat your shell (%s), this is being skipped.\n\
+The error was: %s"),
+ shell, safe_strerror (errno));
+ return false;
+ }
+
+ if ((sb.st_flags & SF_RESTRICTED) == 0)
+ return true;
+
+ /* Put the copy somewhere like ~/Library/Caches/gdb/bin/sh. */
+ std::string new_name = get_standard_cache_dir ();
+ /* There's no need to insert a directory separator here, because
+ SHELL is known to be absolute. */
+ new_name.append (shell);
+
+ /* Maybe it was cached by some earlier gdb. */
+ if (stat (new_name.c_str (), &sb) != 0 || !S_ISREG (sb.st_mode))
+ {
+ TRY
+ {
+ copy_shell_to_cache (shell, new_name);
+ }
+ CATCH (ex, RETURN_MASK_ERROR)
+ {
+ warning (_("This version of macOS has System Integrity Protection.\n\
+Because `startup-with-shell' is enabled, gdb tried to work around SIP by\n\
+caching a copy of your shell. However, this failed:\n\
+%s\n\
+If you correct the problem, gdb will automatically try again the next time\n\
+you \"run\". To prevent these attempts, you can use:\n\
+ set startup-with-shell off"),
+ ex.message);
+ return false;
+ }
+ END_CATCH
+
+ printf_filtered (_("Note: this version of macOS has System Integrity Protection.\n\
+Because `startup-with-shell' is enabled, gdb has worked around this by\n\
+caching a copy of your shell. The shell used by \"run\" is now:\n\
+ %s\n"),
+ new_name.c_str ());
+ }
+
+ /* We need to make sure that the new name has the correct lifetime. */
+ static std::string saved_shell = std::move (new_name);
+ copied_shell = saved_shell.c_str ();
+
+#endif /* SF_RESTRICTED */
+
+ return true;
+}
+
+void
+darwin_nat_target::create_inferior (const char *exec_file,
+ const std::string &allargs,
+ char **env, int from_tty)
{
+ gdb::optional<scoped_restore_tmpl<int>> restore_startup_with_shell;
+
+ if (startup_with_shell && may_have_sip ())
+ {
+ if (!maybe_cache_shell ())
+ {
+ warning (_("startup-with-shell is now temporarily disabled"));
+ restore_startup_with_shell.emplace (&startup_with_shell, 0);
+ }
+ }
+
/* Do the hard work. */
fork_inferior (exec_file, allargs, env, darwin_ptrace_me,
- darwin_ptrace_him, darwin_pre_ptrace, NULL,
+ darwin_ptrace_him, darwin_pre_ptrace, copied_shell,
darwin_execvp);
}
\f
static void
darwin_setup_fake_stop_event (struct inferior *inf)
{
+ darwin_inferior *priv = get_darwin_inferior (inf);
darwin_thread_t *thread;
kern_return_t kret;
as well. Otherwise, we'll try resuming it when resuming the
inferior, and get a warning because the thread's suspend count
is already zero, making the resume request useless. */
- thread = VEC_index (darwin_thread_t, inf->priv->threads, 0);
+ thread = priv->threads[0];
kret = thread_suspend (thread->gdb_port);
MACH_CHECK_ERROR (kret);
}
/* Attach to process PID, then initialize for debugging it
and wait for the trace-trap that results from attaching. */
-static void
-darwin_attach (struct target_ops *ops, const char *args, int from_tty)
+void
+darwin_nat_target::attach (const char *args, int from_tty)
{
pid_t pid;
- pid_t pid2;
- int wstatus;
- int res;
struct inferior *inf;
- kern_return_t kret;
pid = parse_pid_to_attach (args);
if (exec_file)
printf_unfiltered (_("Attaching to program: %s, %s\n"), exec_file,
- target_pid_to_str (pid_to_ptid (pid)));
+ target_pid_to_str (ptid_t (pid)).c_str ());
else
printf_unfiltered (_("Attaching to %s\n"),
- target_pid_to_str (pid_to_ptid (pid)));
-
- gdb_flush (gdb_stdout);
+ target_pid_to_str (ptid_t (pid)).c_str ());
}
- if (pid == 0 || kill (pid, 0) < 0)
+ if (pid == 0 || ::kill (pid, 0) < 0)
error (_("Can't attach to process %d: %s (%d)"),
pid, safe_strerror (errno), errno);
- inferior_ptid = pid_to_ptid (pid);
+ inferior_ptid = ptid_t (pid);
inf = current_inferior ();
inferior_appeared (inf, pid);
inf->attach_flag = 1;
darwin_init_thread_list (inf);
- darwin_check_osabi (inf->priv, ptid_get_tid (inferior_ptid));
+ darwin_inferior *priv = get_darwin_inferior (inf);
+
+ darwin_check_osabi (priv, inferior_ptid.tid ());
darwin_setup_fake_stop_event (inf);
- inf->priv->no_ptrace = 1;
+ priv->no_ptrace = 1;
}
/* Take a program previously attached to and detaches it.
to work, it may be necessary for the process to have been
previously attached. It *might* work if the program was
started via fork. */
-static void
-darwin_detach (struct target_ops *ops, const char *args, int from_tty)
+
+void
+darwin_nat_target::detach (inferior *inf, int from_tty)
{
- pid_t pid = ptid_get_pid (inferior_ptid);
- struct inferior *inf = current_inferior ();
+ darwin_inferior *priv = get_darwin_inferior (inf);
kern_return_t kret;
int res;
target_announce_detach (from_tty);
/* If ptrace() is in use, stop the process. */
- if (!inf->priv->no_ptrace)
+ if (!priv->no_ptrace)
darwin_stop_inferior (inf);
- kret = darwin_restore_exception_ports (inf->priv);
+ kret = darwin_restore_exception_ports (priv);
MACH_CHECK_ERROR (kret);
- if (!inf->priv->no_ptrace)
+ if (!priv->no_ptrace)
{
res = PTRACE (PT_DETACH, inf->pid, 0, 0);
if (res != 0)
/* When using ptrace, we have just performed a PT_DETACH, which
resumes the inferior. On the other hand, when we are not using
ptrace, we need to resume its execution ourselves. */
- if (inf->priv->no_ptrace)
+ if (priv->no_ptrace)
darwin_resume_inferior (inf);
- darwin_mourn_inferior (ops);
-}
-
-static void
-darwin_files_info (struct target_ops *ops)
-{
+ mourn_inferior ();
}
-static const char *
-darwin_pid_to_str (struct target_ops *ops, ptid_t ptid)
+std::string
+darwin_nat_target::pid_to_str (ptid_t ptid)
{
- static char buf[80];
- long tid = ptid_get_tid (ptid);
+ long tid = ptid.tid ();
if (tid != 0)
- {
- snprintf (buf, sizeof (buf), _("Thread 0x%lx of process %u"),
- tid, ptid_get_pid (ptid));
- return buf;
- }
+ return string_printf (_("Thread 0x%lx of process %u"),
+ tid, ptid.pid ());
return normal_pid_to_str (ptid);
}
-static int
-darwin_thread_alive (struct target_ops *ops, ptid_t ptid)
+bool
+darwin_nat_target::thread_alive (ptid_t ptid)
{
- return 1;
+ return true;
}
/* If RDADDR is not NULL, read inferior task's LEN bytes from ADDR and
{
kern_return_t kret;
mach_vm_size_t res_length = 0;
- pointer_t copied;
- mach_msg_type_number_t copy_count;
- mach_vm_size_t remaining_length;
- mach_vm_address_t region_address;
- mach_vm_size_t region_length;
inferior_debug (8, _("darwin_read_write_inferior(task=0x%x, %s, len=%s)\n"),
task, core_addr_to_string (addr), pulongest (length));
{
struct task_dyld_info task_dyld_info;
mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
- int sz = TASK_DYLD_INFO_COUNT * sizeof (natural_t);
kern_return_t kret;
if (addr != 0 || length > sizeof (mach_vm_address_t))
\f
-static enum target_xfer_status
-darwin_xfer_partial (struct target_ops *ops,
- enum target_object object, const char *annex,
- gdb_byte *readbuf, const gdb_byte *writebuf,
- ULONGEST offset, ULONGEST len, ULONGEST *xfered_len)
+enum target_xfer_status
+darwin_nat_target::xfer_partial (enum target_object object, const char *annex,
+ gdb_byte *readbuf, const gdb_byte *writebuf,
+ ULONGEST offset, ULONGEST len,
+ ULONGEST *xfered_len)
{
struct inferior *inf = current_inferior ();
+ darwin_inferior *priv = get_darwin_inferior (inf);
inferior_debug
(8, _("darwin_xfer_partial(%s, %s, rbuf=%s, wbuf=%s) pid=%u\n"),
{
case TARGET_OBJECT_MEMORY:
{
- int l = darwin_read_write_inferior (inf->priv->task, offset,
+ int l = darwin_read_write_inferior (priv->task, offset,
readbuf, writebuf, len);
if (l == 0)
/* Support only read. */
return TARGET_XFER_E_IO;
}
- return darwin_read_dyld_info (inf->priv->task, offset, readbuf, len,
+ return darwin_read_dyld_info (priv->task, offset, readbuf, len,
xfered_len);
#endif
default:
set_enable_mach_exceptions (const char *args, int from_tty,
struct cmd_list_element *c)
{
- if (!ptid_equal (inferior_ptid, null_ptid))
+ if (inferior_ptid != null_ptid)
{
struct inferior *inf = current_inferior ();
+ darwin_inferior *priv = get_darwin_inferior (inf);
exception_mask_t mask;
kern_return_t kret;
mask = EXC_MASK_ALL;
else
{
- darwin_restore_exception_ports (inf->priv);
+ darwin_restore_exception_ports (priv);
mask = EXC_MASK_SOFTWARE | EXC_MASK_BREAKPOINT;
}
- kret = task_set_exception_ports (inf->priv->task, mask, darwin_ex_port,
+ kret = task_set_exception_ports (priv->task, mask, darwin_ex_port,
EXCEPTION_DEFAULT, THREAD_STATE_NONE);
MACH_CHECK_ERROR (kret);
}
}
-static char *
-darwin_pid_to_exec_file (struct target_ops *self, int pid)
+char *
+darwin_nat_target::pid_to_exec_file (int pid)
{
static char path[PATH_MAX];
int res;
return NULL;
}
-static ptid_t
-darwin_get_ada_task_ptid (struct target_ops *self, long lwp, long thread)
+ptid_t
+darwin_nat_target::get_ada_task_ptid (long lwp, long thread)
{
- int i;
- darwin_thread_t *t;
- int k;
struct inferior *inf = current_inferior ();
+ darwin_inferior *priv = get_darwin_inferior (inf);
kern_return_t kret;
mach_port_name_array_t names;
mach_msg_type_number_t names_count;
long res = 0;
/* First linear search. */
- for (k = 0;
- VEC_iterate (darwin_thread_t, inf->priv->threads, k, t);
- k++)
- if (t->inf_port == lwp)
- return ptid_build (ptid_get_pid (inferior_ptid), 0, t->gdb_port);
+ for (darwin_thread_t *t : priv->threads)
+ {
+ if (t->inf_port == lwp)
+ return ptid_t (inferior_ptid.pid (), 0, t->gdb_port);
+ }
/* Maybe the port was never extract. Do it now. */
/* First get inferior port names. */
- kret = mach_port_names (inf->priv->task, &names, &names_count, &types,
+ kret = mach_port_names (priv->task, &names, &names_count, &types,
&types_count);
MACH_CHECK_ERROR (kret);
if (kret != KERN_SUCCESS)
/* For each name, copy the right in the gdb space and then compare with
our view of the inferior threads. We don't forget to deallocate the
right. */
- for (i = 0; i < names_count; i++)
+ for (int i = 0; i < names_count; i++)
{
mach_port_t local_name;
mach_msg_type_name_t local_type;
/* We just need to know the corresponding name in gdb name space.
So extract and deallocate the right. */
- kret = mach_port_extract_right (inf->priv->task, names[i],
+ kret = mach_port_extract_right (priv->task, names[i],
MACH_MSG_TYPE_COPY_SEND,
&local_name, &local_type);
if (kret != KERN_SUCCESS)
continue;
mach_port_deallocate (gdb_task, local_name);
- for (k = 0;
- VEC_iterate (darwin_thread_t, inf->priv->threads, k, t);
- k++)
- if (t->gdb_port == local_name)
- {
- t->inf_port = names[i];
- if (names[i] == lwp)
- res = t->gdb_port;
- }
+ for (darwin_thread_t *t : priv->threads)
+ {
+ if (t->gdb_port == local_name)
+ {
+ t->inf_port = names[i];
+ if (names[i] == lwp)
+ res = t->gdb_port;
+ }
+ }
}
vm_deallocate (gdb_task, (vm_address_t) names,
names_count * sizeof (mach_port_t));
if (res)
- return ptid_build (ptid_get_pid (inferior_ptid), 0, res);
+ return ptid_t (inferior_ptid.pid (), 0, res);
else
return null_ptid;
}
-static int
-darwin_supports_multi_process (struct target_ops *self)
+bool
+darwin_nat_target::supports_multi_process ()
{
- return 1;
+ return true;
}
void
-_initialize_darwin_inferior (void)
+_initialize_darwin_nat ()
{
kern_return_t kret;
MACH_CHECK_ERROR (kret);
}
- darwin_ops = inf_child_target ();
-
- darwin_ops->to_create_inferior = darwin_create_inferior;
- darwin_ops->to_attach = darwin_attach;
- darwin_ops->to_attach_no_wait = 0;
- darwin_ops->to_detach = darwin_detach;
- darwin_ops->to_files_info = darwin_files_info;
- darwin_ops->to_wait = darwin_wait_to;
- darwin_ops->to_mourn_inferior = darwin_mourn_inferior;
- darwin_ops->to_kill = darwin_kill_inferior;
- darwin_ops->to_interrupt = darwin_interrupt;
- darwin_ops->to_resume = darwin_resume_to;
- darwin_ops->to_thread_alive = darwin_thread_alive;
- darwin_ops->to_pid_to_str = darwin_pid_to_str;
- darwin_ops->to_pid_to_exec_file = darwin_pid_to_exec_file;
- darwin_ops->to_load = NULL;
- darwin_ops->to_xfer_partial = darwin_xfer_partial;
- darwin_ops->to_supports_multi_process = darwin_supports_multi_process;
- darwin_ops->to_get_ada_task_ptid = darwin_get_ada_task_ptid;
-
- darwin_complete_target (darwin_ops);
-
- add_target (darwin_ops);
-
inferior_debug (2, _("GDB task: 0x%lx, pid: %d\n"),
(unsigned long) mach_task_self (), getpid ());
projects / deliverable / binutils-gdb.git / blobdiff