Multi-target support

[deliverable/binutils-gdb.git] / gdb / nto-procfs.c

diff --git a/gdb/nto-procfs.c b/gdb/nto-procfs.c
index 117edb161c3c760ad544164a0541ac8de8c94080..c31dbf136c8cb9966c20f33b73ef5a74c97e0d82 100644 (file)
--- a/gdb/nto-procfs.c
+++ b/gdb/nto-procfs.c
@@ -1,7 +1,7 @@
 /* Machine independent support for QNX Neutrino /proc (process file system)
    for GDB.  Written by Colin Burgess at QNX Software Systems Limited.
 
-   Copyright (C) 2003-2018 Free Software Foundation, Inc.
+   Copyright (C) 2003-2020 Free Software Foundation, Inc.
 
    Contributed by QNX Software Systems Ltd.
 
@@ -42,8 +42,8 @@
 #include "regcache.h"
 #include "solib.h"
 #include "inf-child.h"
-#include "common/filestuff.h"
-#include "common/scoped_fd.h"
+#include "gdbsupport/filestuff.h"
+#include "gdbsupport/scoped_fd.h"
 
 #define NULL_PID               0
 #define _DEBUG_FLAG_TRACE      (_DEBUG_FLAG_TRACE_EXEC|_DEBUG_FLAG_TRACE_RD|\
@@ -109,19 +109,16 @@ struct nto_procfs_target : public inf_child_target
 
   void mourn_inferior () override;
 
-  void pass_signals (int, unsigned char *) override;
+  void pass_signals (gdb::array_view<const unsigned char>) override;
 
   bool thread_alive (ptid_t ptid) override;
 
   void update_thread_list () override;
 
-  const char *pid_to_str (ptid_t) override;
+  std::string pid_to_str (ptid_t) override;
 
   void interrupt () override;
 
-  bool have_continuable_watchpoint ()
-  { return true; }
-
   const char *extra_thread_info (struct thread_info *) override;
 
   char *pid_to_exec_file (int pid) override;
@@ -146,7 +143,7 @@ class nto_procfs_target_native final : public nto_procfs_target
 static const target_info nto_procfs_target_info = {
   "procfs",
   N_("QNX Neutrino local or remote process"),
-  N_("QNX Neutrino process.  target procfs <node>")
+  N_("QNX Neutrino process.  target procfs NODE")
 };
 
 struct nto_procfs_target_procfs final : public nto_procfs_target
@@ -217,8 +214,6 @@ nto_procfs_target::open (const char *arg, int from_tty)
   nto_procfs_node = ND_LOCAL_NODE;
   nodestr = (arg != NULL) ? xstrdup (arg) : NULL;
 
-  init_thread_list ();
-
   if (nodestr)
     {
       nto_procfs_node = netmgr_strtond (nodestr, &endstr);
@@ -414,7 +409,7 @@ nto_procfs_target::update_thread_list ()
           (e.g. thread exited).  */
        continue;
       ptid = ptid_t (pid, 0, tid);
-      new_thread = find_thread_ptid (ptid);
+      new_thread = find_thread_ptid (this, ptid);
       if (!new_thread)
        new_thread = add_thread (ptid);
       update_thread_private_data (new_thread, tid, status.state, 0);
@@ -610,7 +605,7 @@ procfs_meminfo (const char *args, int from_tty)
              if (strcmp (map.info.path, printme.name))
                continue;
 
-             /* Lower debug_vaddr is always text, if nessessary, swap.  */
+             /* Lower debug_vaddr is always text, if necessary, swap.  */
              if ((int) map.info.vaddr < (int) printme.text.debug_vaddr)
                {
                  memcpy (&(printme.data), &(printme.text),
@@ -663,7 +658,7 @@ nto_procfs_target::files_info ()
 
   printf_unfiltered ("\tUsing the running image of %s %s via %s.\n",
                     inf->attach_flag ? "attached" : "child",
-                    target_pid_to_str (inferior_ptid),
+                    target_pid_to_str (inferior_ptid).c_str (),
                     (nodestr != NULL) ? nodestr : "local node");
 }
 
@@ -698,7 +693,6 @@ nto_procfs_target::pid_to_exec_file (const int pid)
 void
 nto_procfs_target::attach (const char *args, int from_tty)
 {
-  char *exec_file;
   int pid;
   struct inferior *inf;
 
@@ -709,16 +703,14 @@ nto_procfs_target::attach (const char *args, int from_tty)
 
   if (from_tty)
     {
-      exec_file = (char *) get_exec_file (0);
+      const char *exec_file = get_exec_file (0);
 
       if (exec_file)
        printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
-                          target_pid_to_str (ptid_t (pid)));
+                          target_pid_to_str (ptid_t (pid)).c_str ());
       else
        printf_unfiltered ("Attaching to %s\n",
-                          target_pid_to_str (ptid_t (pid)));
-
-      gdb_flush (gdb_stdout);
+                          target_pid_to_str (ptid_t (pid)).c_str ());
     }
   inferior_ptid = do_attach (ptid_t (pid));
   inf = current_inferior ();
@@ -1222,7 +1214,7 @@ nto_procfs_target::create_inferior (const char *exec_file,
 
   argv = xmalloc ((allargs.size () / (unsigned) 2 + 2) *
                  sizeof (*argv));
-  argv[0] = get_exec_file (1);
+  argv[0] = const_cast<char *> (get_exec_file (1));
   if (!argv[0])
     {
       if (exec_file)
@@ -1324,7 +1316,7 @@ nto_procfs_target::create_inferior (const char *exec_file,
     {
       /* FIXME: expected warning?  */
       /* warning( "Failed to set Kill-on-Last-Close flag: errno = %d(%s)\n",
-         errn, strerror(errn) ); */
+         errn, safe_strerror(errn) ); */
     }
   if (!target_is_pushed (ops))
     push_target (ops);
@@ -1447,7 +1439,8 @@ nto_procfs_target::store_registers (struct regcache *regcache, int regno)
 /* Set list of signals to be handled in the target.  */
 
 void
-nto_procfs_target::pass_signals (int numsigs, unsigned char *pass_signals)
+nto_procfs_target::pass_signals
+  (gdb::array_view<const unsigned char> pass_signals)
 {
   int signo;
 
@@ -1456,30 +1449,27 @@ nto_procfs_target::pass_signals (int numsigs, unsigned char *pass_signals)
   for (signo = 1; signo < NSIG; signo++)
     {
       int target_signo = gdb_signal_from_host (signo);
-      if (target_signo < numsigs && pass_signals[target_signo])
+      if (target_signo < pass_signals.size () && pass_signals[target_signo])
         sigdelset (&run.trace, signo);
     }
 }
 
-char *
+std::string
 nto_procfs_target::pid_to_str (ptid_t ptid)
 {
-  static char buf[1024];
-  int pid, tid, n;
+  int pid, tid;
   struct tidinfo *tip;
 
   pid = ptid.pid ();
   tid = ptid.tid ();
 
-  n = snprintf (buf, 1023, "process %d", pid);
-
 #if 0                          /* NYI */
   tip = procfs_thread_info (pid, tid);
   if (tip != NULL)
     snprintf (&buf[n], 1023, " (state = 0x%02x)", tip->state);
 #endif
 
-  return buf;
+  return string_printf ("process %d", pid);
 }
 
 /* to_can_run implementation for "target procfs".  Note this really