/* Interface GDB to the GNU Hurd.
- Copyright (C) 1992-2016 Free Software Foundation, Inc.
+ Copyright (C) 1992-2018 Free Software Foundation, Inc.
This file is part of GDB.
#include <setjmp.h>
#include <signal.h>
#include <sys/ptrace.h>
+#include <elf.h>
+#include <link.h>
#include "inferior.h"
#include "symtab.h"
#include "gdbcore.h"
#include "gdbthread.h"
#include "gdb_obstack.h"
+#include "tid-parse.h"
#include "gnu-nat.h"
#include "inf-child.h"
struct inf *inf = cur_inf ();
inf_debug (inf, "tracing self");
if (ptrace (PTRACE_TRACEME) != 0)
- error (_("ptrace (PTRACE_TRACEME) failed!"));
+ trace_start_error_with_name ("ptrace");
}
static void
gnu_create_inferior (struct target_ops *ops,
- char *exec_file, char *allargs, char **env,
+ const char *exec_file, const std::string &allargs,
+ char **env,
int from_tty)
{
struct inf *inf = cur_inf ();
pid = fork_inferior (exec_file, allargs, env, gnu_ptrace_me,
NULL, NULL, NULL, NULL);
+ /* We have something that executes now. We'll be running through
+ the shell at this point (if startup-with-shell is true), but the
+ pid shouldn't change. */
+ add_thread_silent (pid_to_ptid (pid));
+
/* Attach to the now stopped child, which is actually a shell... */
inf_debug (inf, "attaching to child: %d", pid);
thread_change_ptid (inferior_ptid,
ptid_build (inf->pid, inf_pick_first_thread (), 0));
- startup_inferior (START_INFERIOR_TRAPS_EXPECTED);
+ gdb_startup_inferior (pid, START_INFERIOR_TRAPS_EXPECTED);
+
inf->pending_execs = 0;
+ /* Get rid of the old shell threads. */
+ prune_threads ();
inf_validate_procinfo (inf);
inf_update_signal_thread (inf);
/* We have to initialize the terminal settings now, since the code
below might try to restore them. */
- target_terminal_init ();
+ target_terminal::init ();
/* If the process was stopped before we attached, make it continue the next
time the user does a continue. */
previously attached. It *might* work if the program was
started via fork. */
static void
-gnu_detach (struct target_ops *ops, const char *args, int from_tty)
+gnu_detach (struct target_ops *ops, inferior *inf, int from_tty)
{
int pid;
inf_child_maybe_unpush_target (ops);
}
\f
-static void
-gnu_terminal_init (struct target_ops *self)
-{
- gdb_assert (gnu_current_inf);
- child_terminal_init_with_pgrp (gnu_current_inf->pid);
-}
static void
gnu_stop (struct target_ops *self, ptid_t ptid)
}
}
+/* GNU does not have auxv, but we can at least fake the AT_ENTRY entry for PIE
+ binaries. */
+static enum target_xfer_status
+gnu_xfer_auxv (gdb_byte *readbuf, const gdb_byte *writebuf,
+ CORE_ADDR memaddr, ULONGEST len, ULONGEST *xfered_len)
+{
+ task_t task = (gnu_current_inf
+ ? (gnu_current_inf->task
+ ? gnu_current_inf->task->port : 0)
+ : 0);
+ process_t proc;
+ int res;
+ kern_return_t err;
+ vm_address_t entry;
+ ElfW(auxv_t) auxv[2];
+
+ if (task == MACH_PORT_NULL)
+ return TARGET_XFER_E_IO;
+ if (writebuf != NULL)
+ return TARGET_XFER_E_IO;
+
+ if (memaddr == sizeof (auxv))
+ return TARGET_XFER_EOF;
+ if (memaddr > sizeof (auxv))
+ return TARGET_XFER_E_IO;
+
+ err = proc_task2proc (proc_server, task, &proc);
+ if (err != 0)
+ return TARGET_XFER_E_IO;
+
+ /* Get entry from proc server. */
+ err = proc_get_entry (proc, &entry);
+ if (err != 0)
+ return TARGET_XFER_E_IO;
+
+ /* Fake auxv entry. */
+ auxv[0].a_type = AT_ENTRY;
+ auxv[0].a_un.a_val = entry;
+ auxv[1].a_type = AT_NULL;
+ auxv[1].a_un.a_val = 0;
+
+ inf_debug (gnu_current_inf, "reading auxv %s[%s] --> %s",
+ paddress (target_gdbarch (), memaddr), pulongest (len),
+ host_address_to_string (readbuf));
+
+ if (memaddr + len > sizeof (auxv))
+ len = sizeof (auxv) - memaddr;
+
+ memcpy (readbuf, (gdb_byte *) &auxv + memaddr, len);
+ *xfered_len = len;
+
+ return TARGET_XFER_OK;
+}
+
/* Target to_xfer_partial implementation. */
static enum target_xfer_status
{
case TARGET_OBJECT_MEMORY:
return gnu_xfer_memory (readbuf, writebuf, offset, len, xfered_len);
+ case TARGET_OBJECT_AUXV:
+ return gnu_xfer_auxv (readbuf, writebuf, offset, len, xfered_len);
default:
return TARGET_XFER_E_IO;
}
return tid_str;
}
-static char *
+static const char *
gnu_pid_to_str (struct target_ops *ops, ptid_t ptid)
{
struct inf *inf = gnu_current_inf;
t->to_wait = gnu_wait;
t->to_xfer_partial = gnu_xfer_partial;
t->to_find_memory_regions = gnu_find_memory_regions;
- t->to_terminal_init = gnu_terminal_init;
t->to_kill = gnu_kill_inferior;
t->to_create_inferior = gnu_create_inferior;
t->to_mourn_inferior = gnu_mourn_inferior;
struct cmd_list_element *show_thread_default_cmd_list = NULL;
static void
-set_thread_cmd (char *args, int from_tty)
+set_thread_cmd (const char *args, int from_tty)
{
printf_unfiltered ("\"set thread\" must be followed by the "
"name of a thread property, or \"default\".\n");
}
static void
-show_thread_cmd (char *args, int from_tty)
+show_thread_cmd (const char *args, int from_tty)
{
printf_unfiltered ("\"show thread\" must be followed by the "
"name of a thread property, or \"default\".\n");
}
static void
-set_thread_default_cmd (char *args, int from_tty)
+set_thread_default_cmd (const char *args, int from_tty)
{
printf_unfiltered ("\"set thread default\" must be followed "
"by the name of a thread property.\n");
}
static void
-show_thread_default_cmd (char *args, int from_tty)
+show_thread_default_cmd (const char *args, int from_tty)
{
printf_unfiltered ("\"show thread default\" must be followed "
"by the name of a thread property.\n");
}
static int
-parse_int_arg (char *args, char *cmd_prefix)
+parse_int_arg (const char *args, char *cmd_prefix)
{
if (args)
{
}
static int
-_parse_bool_arg (char *args, char *t_val, char *f_val, char *cmd_prefix)
+_parse_bool_arg (const char *args, char *t_val, char *f_val, char *cmd_prefix)
{
if (!args || strcmp (args, t_val) == 0)
return 1;
_parse_bool_arg (args, "on", "off", cmd_prefix)
static void
-check_empty (char *args, char *cmd_prefix)
+check_empty (const char *args, char *cmd_prefix)
{
if (args)
error (_("Garbage after \"%s\" command: `%s'"), cmd_prefix, args);
}
static void
-set_task_pause_cmd (char *args, int from_tty)
+set_task_pause_cmd (const char *args, int from_tty)
{
set_task_pause_cmd (parse_bool_arg (args, "set task pause"), from_tty);
}
static void
-show_task_pause_cmd (char *args, int from_tty)
+show_task_pause_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
}
static void
-set_task_detach_sc_cmd (char *args, int from_tty)
+set_task_detach_sc_cmd (const char *args, int from_tty)
{
cur_inf ()->detach_sc = parse_int_arg (args,
"set task detach-suspend-count");
}
static void
-show_task_detach_sc_cmd (char *args, int from_tty)
+show_task_detach_sc_cmd (const char *args, int from_tty)
{
check_empty (args, "show task detach-suspend-count");
printf_unfiltered ("The inferior task will be left with a "
\f
static void
-set_thread_default_pause_cmd (char *args, int from_tty)
+set_thread_default_pause_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
}
static void
-show_thread_default_pause_cmd (char *args, int from_tty)
+show_thread_default_pause_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
int sc = inf->default_thread_pause_sc;
}
static void
-set_thread_default_run_cmd (char *args, int from_tty)
+set_thread_default_run_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
}
static void
-show_thread_default_run_cmd (char *args, int from_tty)
+show_thread_default_run_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
}
static void
-set_thread_default_detach_sc_cmd (char *args, int from_tty)
+set_thread_default_detach_sc_cmd (const char *args, int from_tty)
{
cur_inf ()->default_thread_detach_sc =
parse_int_arg (args, "set thread default detach-suspend-count");
}
static void
-show_thread_default_detach_sc_cmd (char *args, int from_tty)
+show_thread_default_detach_sc_cmd (const char *args, int from_tty)
{
check_empty (args, "show thread default detach-suspend-count");
printf_unfiltered ("New threads will get a detach-suspend-count of %d.\n",
}
static void
-set_task_exc_port_cmd (char *args, int from_tty)
+set_task_exc_port_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
}
static void
-set_stopped_cmd (char *args, int from_tty)
+set_stopped_cmd (const char *args, int from_tty)
{
cur_inf ()->stopped = _parse_bool_arg (args, "yes", "no", "set stopped");
}
static void
-show_stopped_cmd (char *args, int from_tty)
+show_stopped_cmd (const char *args, int from_tty)
{
struct inf *inf = active_inf ();
}
static void
-set_sig_thread_cmd (char *args, int from_tty)
+set_sig_thread_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
if (!args || (!isdigit (*args) && strcmp (args, "none") != 0))
error (_("Illegal argument to \"set signal-thread\" command.\n"
- "Should be an integer thread ID, or `none'."));
+ "Should be a thread ID, or \"none\"."));
if (strcmp (args, "none") == 0)
inf->signal_thread = 0;
else
{
- ptid_t ptid = global_thread_id_to_ptid (atoi (args));
-
- if (ptid_equal (ptid, minus_one_ptid))
- error (_("Thread ID %s not known. "
- "Use the \"info threads\" command to\n"
- "see the IDs of currently known threads."), args);
- inf->signal_thread = inf_tid_to_thread (inf, ptid_get_lwp (ptid));
+ struct thread_info *tp = parse_thread_id (args, NULL);
+ inf->signal_thread = inf_tid_to_thread (inf, ptid_get_lwp (tp->ptid));
}
}
static void
-show_sig_thread_cmd (char *args, int from_tty)
+show_sig_thread_cmd (const char *args, int from_tty)
{
struct inf *inf = active_inf ();
}
static void
-set_signals_cmd (char *args, int from_tty)
+set_signals_cmd (const char *args, int from_tty)
{
set_signals_cmd(parse_bool_arg (args, "set signals"), from_tty);
}
static void
-show_signals_cmd (char *args, int from_tty)
+show_signals_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
}
static void
-set_exceptions_cmd (char *args, int from_tty)
+set_exceptions_cmd (const char *args, int from_tty)
{
set_exceptions_cmd (parse_bool_arg (args, "set exceptions"), from_tty);
}
static void
-show_exceptions_cmd (char *args, int from_tty)
+show_exceptions_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
\f
static void
-set_task_cmd (char *args, int from_tty)
+set_task_cmd (const char *args, int from_tty)
{
printf_unfiltered ("\"set task\" must be followed by the name"
" of a task property.\n");
}
static void
-show_task_cmd (char *args, int from_tty)
+show_task_cmd (const char *args, int from_tty)
{
struct inf *inf = cur_inf ();
\f
static void
-set_noninvasive_cmd (char *args, int from_tty)
+set_noninvasive_cmd (const char *args, int from_tty)
{
/* Invert the sense of the arg for each component. */
int inv_arg = parse_bool_arg (args, "set noninvasive") ? 0 : 1;
}
static void
-info_send_rights_cmd (char *args, int from_tty)
+info_send_rights_cmd (const char *args, int from_tty)
{
info_port_rights (args, MACH_PORT_TYPE_SEND);
}
static void
-info_recv_rights_cmd (char *args, int from_tty)
+info_recv_rights_cmd (const char *args, int from_tty)
{
info_port_rights (args, MACH_PORT_TYPE_RECEIVE);
}
static void
-info_port_sets_cmd (char *args, int from_tty)
+info_port_sets_cmd (const char *args, int from_tty)
{
info_port_rights (args, MACH_PORT_TYPE_PORT_SET);
}
static void
-info_dead_names_cmd (char *args, int from_tty)
+info_dead_names_cmd (const char *args, int from_tty)
{
info_port_rights (args, MACH_PORT_TYPE_DEAD_NAME);
}
static void
-info_port_rights_cmd (char *args, int from_tty)
+info_port_rights_cmd (const char *args, int from_tty)
{
info_port_rights (args, ~0);
}
\f
static void
-set_thread_pause_cmd (char *args, int from_tty)
+set_thread_pause_cmd (const char *args, int from_tty)
{
struct proc *thread = cur_thread ();
int old_sc = thread->pause_sc;
}
static void
-show_thread_pause_cmd (char *args, int from_tty)
+show_thread_pause_cmd (const char *args, int from_tty)
{
struct proc *thread = cur_thread ();
int sc = thread->pause_sc;
}
static void
-set_thread_run_cmd (char *args, int from_tty)
+set_thread_run_cmd (const char *args, int from_tty)
{
struct proc *thread = cur_thread ();
}
static void
-show_thread_run_cmd (char *args, int from_tty)
+show_thread_run_cmd (const char *args, int from_tty)
{
struct proc *thread = cur_thread ();
}
static void
-set_thread_detach_sc_cmd (char *args, int from_tty)
+set_thread_detach_sc_cmd (const char *args, int from_tty)
{
cur_thread ()->detach_sc = parse_int_arg (args,
"set thread detach-suspend-count");
}
static void
-show_thread_detach_sc_cmd (char *args, int from_tty)
+show_thread_detach_sc_cmd (const char *args, int from_tty)
{
struct proc *thread = cur_thread ();
}
static void
-set_thread_exc_port_cmd (char *args, int from_tty)
+set_thread_exc_port_cmd (const char *args, int from_tty)
{
struct proc *thread = cur_thread ();
#endif
static void
-thread_takeover_sc_cmd (char *args, int from_tty)
+thread_takeover_sc_cmd (const char *args, int from_tty)
{
struct proc *thread = cur_thread ();
&thread_cmd_list);
}
-\f
-
-/* -Wmissing-prototypes */
-extern initialize_file_ftype _initialize_gnu_nat;
-
void
_initialize_gnu_nat (void)
{
projects / deliverable / binutils-gdb.git / blobdiff