* gdb.texinfo (Omissions from Ada): Remove incorrect documentation

[deliverable/binutils-gdb.git] / gdb / gdbserver / server.c

diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c
index da2ec7a2dc6d55945f3b5763b80ee47188641930..33db8a78dcf56bb025b5d63f51142d51adf34dd8 100644 (file)
--- a/gdb/gdbserver/server.c
+++ b/gdb/gdbserver/server.c
@@ -28,6 +28,9 @@
 #if HAVE_SYS_WAIT_H
 #include <sys/wait.h>
 #endif
+#if HAVE_MALLOC_H
+#include <malloc.h>
+#endif
 
 unsigned long cont_thread;
 unsigned long general_thread;
@@ -67,14 +70,6 @@ int terminal_fd;
 /* TERMINAL_FD's original foreground group.  */
 pid_t old_foreground_pgrp;
 
-/* Set if you want to disable optional thread related packets support
-   in gdbserver, for the sake of testing GDB against stubs that don't
-   support them.  */
-int disable_packet_vCont;
-int disable_packet_Tthread;
-int disable_packet_qC;
-int disable_packet_qfThreadInfo;
-
 /* Hand back terminal ownership to the original foreground group.  */
 
 static void
@@ -84,6 +79,14 @@ restore_old_foreground_pgrp (void)
 }
 #endif
 
+/* Set if you want to disable optional thread related packets support
+   in gdbserver, for the sake of testing GDB against stubs that don't
+   support them.  */
+int disable_packet_vCont;
+int disable_packet_Tthread;
+int disable_packet_qC;
+int disable_packet_qfThreadInfo;
+
 static int
 target_running (void)
 {
@@ -267,6 +270,19 @@ handle_general_set (char *own_buf)
       return;
     }
 
+  if (strcmp (own_buf, "QStartNoAckMode") == 0)
+    {
+      if (remote_debug)
+       {
+         fprintf (stderr, "[noack mode enabled]\n");
+         fflush (stderr);
+       }
+
+      noack_mode = 1;
+      write_ok (own_buf);
+      return;
+    }
+
   /* Otherwise we didn't know what packet it was.  Say we didn't
      understand it.  */
   own_buf[0] = 0;
@@ -752,6 +768,38 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p)
       return;
     }
 
+  if (the_target->qxfer_osdata != NULL
+      && strncmp ("qXfer:osdata:read:", own_buf, 18) == 0)
+    {
+      char *annex;
+      int n;
+      unsigned int len;
+      CORE_ADDR ofs;
+      unsigned char *workbuf;
+
+      strcpy (own_buf, "E00");
+      if (decode_xfer_read (own_buf + 18, &annex, &ofs, &len) < 0)
+       return;
+      if (len > PBUFSIZ - 2)
+       len = PBUFSIZ - 2;
+      workbuf = malloc (len + 1);
+      if (!workbuf)
+        return;
+
+      n = (*the_target->qxfer_osdata) (annex, workbuf, NULL, ofs, len + 1);
+      if (n < 0)
+       write_enn (own_buf);
+      else if (n > len)
+       *new_packet_len_p = write_qxfer_response
+                             (own_buf, workbuf, len, 1);
+      else
+       *new_packet_len_p = write_qxfer_response
+                             (own_buf, workbuf, n, 0);
+
+      free (workbuf);
+      return;
+    }
+
   /* Protocol features query.  */
   if (strncmp ("qSupported", own_buf, 10) == 0
       && (own_buf[10] == ':' || own_buf[10] == '\0'))
@@ -774,6 +822,12 @@ handle_query (char *own_buf, int packet_len, int *new_packet_len_p)
         qXfer:feature:read at all, we will never be re-queried.  */
       strcat (own_buf, ";qXfer:features:read+");
 
+      if (transport_is_reliable)
+       strcat (own_buf, ";QStartNoAckMode+");
+
+      if (the_target->qxfer_osdata != NULL)
+        strcat (own_buf, ";qXfer:osdata:read+");
+
       return;
     }
 
@@ -1024,6 +1078,11 @@ handle_v_attach (char *own_buf, char *status, int *signal)
   pid = strtol (own_buf + 8, NULL, 16);
   if (pid != 0 && attach_inferior (pid, status, signal) == 0)
     {
+      /* Don't report shared library events after attaching, even if
+        some libraries are preloaded.  GDB will always poll the
+        library list.  Avoids the "stopped by shared library event"
+        notice on the GDB side.  */
+      dlls_changed = 0;
       prepare_resume_reply (own_buf, *status, *signal);
       return 1;
     }
@@ -1048,7 +1107,7 @@ handle_v_run (char *own_buf, char *status, int *signal)
       new_argc++;
     }
 
-  new_argv = malloc ((new_argc + 2) * sizeof (char *));
+  new_argv = calloc (new_argc + 2, sizeof (char *));
   i = 0;
   for (p = own_buf + strlen ("vRun;"); *p; p = next_p)
     {
@@ -1073,6 +1132,9 @@ handle_v_run (char *own_buf, char *status, int *signal)
 
   if (new_argv[0] == NULL)
     {
+      /* GDB didn't specify a program to run.  Use the program from the
+        last run with the new argument list.  */
+
       if (program_argv == NULL)
        {
          write_enn (own_buf);
@@ -1439,6 +1501,7 @@ main (int argc, char *argv[])
 
   while (1)
     {
+      noack_mode = 0;
       remote_open (port);
 
     restart: