struct aarch64_debug_reg_state *
aarch64_get_debug_reg_state (pid_t pid)
{
struct process_info *proc = find_process_pid (pid);
return &proc->priv->arch_private->debug_reg_state;
}
static void
aarch64_linux_prepare_to_resume (struct lwp_info *lwp)
{
struct thread_info *thread = get_lwp_thread (lwp);
ptid_t ptid = ptid_of (thread);
struct arch_lwp_info *info = lwp->arch_private;
if (DR_HAS_CHANGED (info->dr_changed_bp)
|| DR_HAS_CHANGED (info->dr_changed_wp))
{
int tid = ptid_get_lwp (ptid);
struct process_info *proc = find_process_pid (ptid_get_pid (ptid));
struct aarch64_debug_reg_state *state
= &proc->priv->arch_private->debug_reg_state;
if (show_debug_regs)
fprintf (stderr, "prepare_to_resume thread %ld\n", lwpid_of (thread));
/* Watchpoints. */
if (DR_HAS_CHANGED (info->dr_changed_wp))
{
aarch64_linux_set_debug_regs (state, tid, 1);
DR_CLEAR_CHANGED (info->dr_changed_wp);
}
/* Breakpoints. */
if (DR_HAS_CHANGED (info->dr_changed_bp))
{
aarch64_linux_set_debug_regs (state, tid, 0);
DR_CLEAR_CHANGED (info->dr_changed_bp);
}
}
}
/* Kill all inferiors. */
static int
win32_kill (int pid)
{
struct process_info *process;
if (current_process_handle == NULL)
return -1;
TerminateProcess (current_process_handle, 0);
for (;;)
{
if (!child_continue (DBG_CONTINUE, -1))
break;
if (!WaitForDebugEvent (¤t_event, INFINITE))
break;
if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
break;
else if (current_event.dwDebugEventCode == OUTPUT_DEBUG_STRING_EVENT)
{
struct target_waitstatus our_status = { 0 };
handle_output_debug_string (&our_status);
}
}
win32_clear_inferiors ();
process = find_process_pid (pid);
remove_process (process);
return 0;
}
/* Called when resuming a thread.
If the debug regs have changed, update the thread's copies. */
static void
arm_prepare_to_resume (struct lwp_info *lwp)
{
struct thread_info *thread = get_lwp_thread (lwp);
int pid = lwpid_of (thread);
struct process_info *proc = find_process_pid (pid_of (thread));
struct arch_process_info *proc_info = proc->priv->arch_private;
struct arch_lwp_info *lwp_info = lwp->arch_private;
int i;
for (i = 0; i < arm_linux_get_hw_breakpoint_count (); i++)
if (lwp_info->bpts_changed[i])
{
errno = 0;
if (arm_hwbp_control_is_enabled (proc_info->bpts[i].control))
if (ptrace (PTRACE_SETHBPREGS, pid,
(PTRACE_TYPE_ARG3) ((i << 1) + 1),
&proc_info->bpts[i].address) < 0)
perror_with_name ("Unexpected error setting breakpoint address");
if (arm_hwbp_control_is_initialized (proc_info->bpts[i].control))
if (ptrace (PTRACE_SETHBPREGS, pid,
(PTRACE_TYPE_ARG3) ((i << 1) + 2),
&proc_info->bpts[i].control) < 0)
perror_with_name ("Unexpected error setting breakpoint");
lwp_info->bpts_changed[i] = 0;
}
for (i = 0; i < arm_linux_get_hw_watchpoint_count (); i++)
if (lwp_info->wpts_changed[i])
{
errno = 0;
if (arm_hwbp_control_is_enabled (proc_info->wpts[i].control))
if (ptrace (PTRACE_SETHBPREGS, pid,
(PTRACE_TYPE_ARG3) -((i << 1) + 1),
&proc_info->wpts[i].address) < 0)
perror_with_name ("Unexpected error setting watchpoint address");
if (arm_hwbp_control_is_initialized (proc_info->wpts[i].control))
if (ptrace (PTRACE_SETHBPREGS, pid,
(PTRACE_TYPE_ARG3) -((i << 1) + 2),
&proc_info->wpts[i].control) < 0)
perror_with_name ("Unexpected error setting watchpoint");
lwp_info->wpts_changed[i] = 0;
}
}
static int
lynx_detach (int pid)
{
ptid_t ptid = lynx_ptid_build (pid, 0);
struct process_info *process;
process = find_process_pid (pid);
if (process == NULL)
return -1;
lynx_ptrace (PTRACE_DETACH, ptid, 0, 0, 0);
the_target->mourn (process);
return 0;
}
static int
lynx_kill (int pid)
{
ptid_t ptid = lynx_ptid_build (pid, 0);
struct target_waitstatus status;
struct process_info *process;
process = find_process_pid (pid);
if (process == NULL)
return -1;
lynx_ptrace (PTRACE_KILL, ptid, 0, 0, 0);
lynx_wait (ptid, &status, 0);
the_target->mourn (process);
return 0;
}
/* Detach from inferior PID. */
static int
win32_detach (int pid)
{
struct process_info *process;
winapi_DebugActiveProcessStop DebugActiveProcessStop = NULL;
winapi_DebugSetProcessKillOnExit DebugSetProcessKillOnExit = NULL;
#ifdef _WIN32_WCE
HMODULE dll = GetModuleHandle (_T("COREDLL.DLL"));
#else
HMODULE dll = GetModuleHandle (_T("KERNEL32.DLL"));
#endif
DebugActiveProcessStop = GETPROCADDRESS (dll, DebugActiveProcessStop);
DebugSetProcessKillOnExit = GETPROCADDRESS (dll, DebugSetProcessKillOnExit);
if (DebugSetProcessKillOnExit == NULL
|| DebugActiveProcessStop == NULL)
return -1;
{
struct thread_resume resume;
resume.thread = minus_one_ptid;
resume.kind = resume_continue;
resume.sig = 0;
win32_resume (&resume, 1);
}
if (!DebugActiveProcessStop (current_process_id))
return -1;
DebugSetProcessKillOnExit (FALSE);
process = find_process_pid (pid);
remove_process (process);
win32_clear_inferiors ();
return 0;
}
static ptid_t
lynx_wait_1 (ptid_t ptid, struct target_waitstatus *status, int options)
{
int pid;
int ret;
int wstat;
ptid_t new_ptid;
if (ptid_equal (ptid, minus_one_ptid))
pid = lynx_ptid_get_pid (thread_to_gdb_id (current_thread));
else
pid = BUILDPID (lynx_ptid_get_pid (ptid), lynx_ptid_get_tid (ptid));
retry:
ret = lynx_waitpid (pid, &wstat);
new_ptid = lynx_ptid_build (ret, ((union wait *) &wstat)->w_tid);
find_process_pid (ret)->priv->last_wait_event_ptid = new_ptid;
/* If this is a new thread, then add it now. The reason why we do
this here instead of when handling new-thread events is because
we need to add the thread associated to the "main" thread - even
for non-threaded applications where the new-thread events are not
generated. */
if (!find_thread_ptid (new_ptid))
{
lynx_debug ("New thread: (pid = %d, tid = %d)",
lynx_ptid_get_pid (new_ptid), lynx_ptid_get_tid (new_ptid));
add_thread (new_ptid, NULL);
}
if (WIFSTOPPED (wstat))
{
status->kind = TARGET_WAITKIND_STOPPED;
status->value.integer = gdb_signal_from_host (WSTOPSIG (wstat));
lynx_debug ("process stopped with signal: %d",
status->value.integer);
}
else if (WIFEXITED (wstat))
{
status->kind = TARGET_WAITKIND_EXITED;
status->value.integer = WEXITSTATUS (wstat);
lynx_debug ("process exited with code: %d", status->value.integer);
}
else if (WIFSIGNALED (wstat))
{
status->kind = TARGET_WAITKIND_SIGNALLED;
status->value.integer = gdb_signal_from_host (WTERMSIG (wstat));
lynx_debug ("process terminated with code: %d",
status->value.integer);
}
else
{
/* Not sure what happened if we get here, or whether we can
in fact get here. But if we do, handle the event the best
we can. */
status->kind = TARGET_WAITKIND_STOPPED;
status->value.integer = gdb_signal_from_host (0);
lynx_debug ("unknown event ????");
}
/* SIGTRAP events are generated for situations other than single-step/
breakpoint events (Eg. new-thread events). Handle those other types
of events, and resume the execution if necessary. */
if (status->kind == TARGET_WAITKIND_STOPPED
&& status->value.integer == GDB_SIGNAL_TRAP)
{
const int realsig = lynx_ptrace (PTRACE_GETTRACESIG, new_ptid, 0, 0, 0);
lynx_debug ("(realsig = %d)", realsig);
switch (realsig)
{
case SIGNEWTHREAD:
/* We just added the new thread above. No need to do anything
further. Just resume the execution again. */
lynx_continue (new_ptid);
goto retry;
case SIGTHREADEXIT:
remove_thread (find_thread_ptid (new_ptid));
lynx_continue (new_ptid);
goto retry;
}
}
return new_ptid;
}
struct process_info *
get_thread_process (struct thread_info *thread)
{
int pid = ptid_get_pid (thread->entry.id);
return find_process_pid (pid);
}
struct process_info *
get_thread_process (const struct thread_info *thread)
{
return find_process_pid (thread->id.pid ());
}