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);
}
}
}
/* 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;
}
}
ps_err_e
ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset)
{
#ifdef HAVE_REGSETS
struct lwp_info *lwp;
struct thread_info *reg_inferior, *save_inferior;
struct regcache *regcache;
lwp = find_lwp_pid (pid_to_ptid (lwpid));
if (lwp == NULL)
return PS_ERR;
reg_inferior = get_lwp_thread (lwp);
save_inferior = current_inferior;
current_inferior = reg_inferior;
regcache = get_thread_regcache (current_inferior, 1);
gregset_info ()->fill_function (regcache, gregset);
current_inferior = save_inferior;
return PS_OK;
#else
return PS_ERR;
#endif
}
