Introduce command_line_up
[deliverable/binutils-gdb.git] / gdb / mi / mi-cmd-break.c
index 2fe84dcfeccee0f7bfe302c69862065e2a6777ca..cfe2d34f23fdd9823a025d82bd4c405d258f92aa 100644 (file)
@@ -1,5 +1,5 @@
 /* MI Command Set - breakpoint and watchpoint commands.
-   Copyright (C) 2000-2002, 2007-2012 Free Software Foundation, Inc.
+   Copyright (C) 2000-2017 Free Software Foundation, Inc.
    Contributed by Cygnus Solutions (a Red Hat company).
 
    This file is part of GDB.
 #include "ui-out.h"
 #include "mi-out.h"
 #include "breakpoint.h"
-#include "gdb_string.h"
 #include "mi-getopt.h"
 #include "gdb.h"
-#include "exceptions.h"
 #include "observer.h"
 #include "mi-main.h"
+#include "mi-cmd-break.h"
+#include "language.h"
+#include "location.h"
+#include "linespec.h"
+#include "gdb_obstack.h"
+#include <ctype.h>
 
 enum
   {
@@ -59,11 +63,111 @@ enum bp_type
     REGEXP_BP
   };
 
-/* Implements the -break-insert command.
-   See the MI manual for the list of possible options.  */
+/* Arrange for all new breakpoints and catchpoints to be reported to
+   CURRENT_UIOUT until the cleanup returned by this function is run.
 
-void
-mi_cmd_break_insert (char *command, char **argv, int argc)
+   Note that MI output will be probably invalid if more than one
+   breakpoint is created inside one MI command.  */
+
+struct cleanup *
+setup_breakpoint_reporting (void)
+{
+  struct cleanup *rev_flag;
+
+  if (! mi_breakpoint_observers_installed)
+    {
+      observer_attach_breakpoint_created (breakpoint_notify);
+      mi_breakpoint_observers_installed = 1;
+    }
+
+  rev_flag = make_cleanup_restore_integer (&mi_can_breakpoint_notify);
+  mi_can_breakpoint_notify = 1;
+
+  return rev_flag;
+}
+
+
+/* Convert arguments in ARGV to the string in "format",argv,argv...
+   and return it.  */
+
+static char *
+mi_argv_to_format (char **argv, int argc)
+{
+  int i;
+  struct obstack obstack;
+  char *ret;
+
+  obstack_init (&obstack);
+
+  /* Convert ARGV[OIND + 1] to format string and save to FORMAT.  */
+  obstack_1grow (&obstack, '\"');
+  for (i = 0; i < strlen (argv[0]); i++)
+    {
+      switch (argv[0][i])
+       {
+       case '\\':
+         obstack_grow (&obstack, "\\\\", 2);
+         break;
+       case '\a':
+         obstack_grow (&obstack, "\\a", 2);
+         break;
+       case '\b':
+         obstack_grow (&obstack, "\\b", 2);
+         break;
+       case '\f':
+         obstack_grow (&obstack, "\\f", 2);
+         break;
+       case '\n':
+         obstack_grow (&obstack, "\\n", 2);
+         break;
+       case '\r':
+         obstack_grow (&obstack, "\\r", 2);
+         break;
+       case '\t':
+         obstack_grow (&obstack, "\\t", 2);
+         break;
+       case '\v':
+         obstack_grow (&obstack, "\\v", 2);
+         break;
+       case '"':
+         obstack_grow (&obstack, "\\\"", 2);
+         break;
+       default:
+         if (isprint (argv[0][i]))
+           obstack_grow (&obstack, argv[0] + i, 1);
+         else
+           {
+             char tmp[5];
+
+             xsnprintf (tmp, sizeof (tmp), "\\%o",
+                        (unsigned char) argv[0][i]);
+             obstack_grow (&obstack, tmp, strlen (tmp));
+           }
+         break;
+       }
+    }
+  obstack_1grow (&obstack, '\"');
+
+  /* Apply other argv to FORMAT.  */
+  for (i = 1; i < argc; i++)
+    {
+      obstack_1grow (&obstack, ',');
+      obstack_grow (&obstack, argv[i], strlen (argv[i]));
+    }
+  obstack_1grow (&obstack, '\0');
+
+  ret = xstrdup ((const char *) obstack_finish (&obstack));
+  obstack_free (&obstack, NULL);
+
+  return ret;
+}
+
+/* Insert breakpoint.
+   If dprintf is true, it will insert dprintf.
+   If not, it will insert other type breakpoint.  */
+
+static void
+mi_cmd_break_insert_1 (int dprintf, const char *command, char **argv, int argc)
 {
   char *address = NULL;
   int hardware = 0;
@@ -74,15 +178,21 @@ mi_cmd_break_insert (char *command, char **argv, int argc)
   int pending = 0;
   int enabled = 1;
   int tracepoint = 0;
-  struct cleanup *back_to;
+  struct cleanup *back_to = make_cleanup (null_cleanup, NULL);
   enum bptype type_wanted;
+  event_location_up location;
   struct breakpoint_ops *ops;
+  int is_explicit = 0;
+  struct explicit_location explicit_loc;
+  char *extra_string = NULL;
 
   enum opt
     {
       HARDWARE_OPT, TEMP_OPT, CONDITION_OPT,
       IGNORE_COUNT_OPT, THREAD_OPT, PENDING_OPT, DISABLE_OPT,
       TRACEPOINT_OPT,
+      EXPLICIT_SOURCE_OPT, EXPLICIT_FUNC_OPT,
+      EXPLICIT_LABEL_OPT, EXPLICIT_LINE_OPT
     };
   static const struct mi_opt opts[] =
   {
@@ -94,6 +204,10 @@ mi_cmd_break_insert (char *command, char **argv, int argc)
     {"f", PENDING_OPT, 0},
     {"d", DISABLE_OPT, 0},
     {"a", TRACEPOINT_OPT, 0},
+    {"-source" , EXPLICIT_SOURCE_OPT, 1},
+    {"-function", EXPLICIT_FUNC_OPT, 1},
+    {"-label", EXPLICIT_LABEL_OPT, 1},
+    {"-line", EXPLICIT_LINE_OPT, 1},
     { 0, 0, 0 }
   };
 
@@ -102,6 +216,8 @@ mi_cmd_break_insert (char *command, char **argv, int argc)
   int oind = 0;
   char *oarg;
 
+  initialize_explicit_location (&explicit_loc);
+
   while (1)
     {
       int opt = mi_getopt ("-break-insert", argc, argv,
@@ -134,46 +250,128 @@ mi_cmd_break_insert (char *command, char **argv, int argc)
        case TRACEPOINT_OPT:
          tracepoint = 1;
          break;
+       case EXPLICIT_SOURCE_OPT:
+         is_explicit = 1;
+         explicit_loc.source_filename = oarg;
+         break;
+       case EXPLICIT_FUNC_OPT:
+         is_explicit = 1;
+         explicit_loc.function_name = oarg;
+         break;
+       case EXPLICIT_LABEL_OPT:
+         is_explicit = 1;
+         explicit_loc.label_name = oarg;
+         break;
+       case EXPLICIT_LINE_OPT:
+         is_explicit = 1;
+         explicit_loc.line_offset = linespec_parse_line_offset (oarg);
+         break;
        }
     }
 
-  if (oind >= argc)
-    error (_("-break-insert: Missing <location>"));
-  if (oind < argc - 1)
-    error (_("-break-insert: Garbage following <location>"));
-  address = argv[oind];
+  if (oind >= argc && !is_explicit)
+    error (_("-%s-insert: Missing <location>"),
+          dprintf ? "dprintf" : "break");
+  if (dprintf)
+    {
+      int format_num = is_explicit ? oind : oind + 1;
+
+      if (hardware || tracepoint)
+       error (_("-dprintf-insert: does not support -h or -a"));
+      if (format_num >= argc)
+       error (_("-dprintf-insert: Missing <format>"));
+
+      extra_string = mi_argv_to_format (argv + format_num, argc - format_num);
+      make_cleanup (xfree, extra_string);
+      address = argv[oind];
+    }
+  else
+    {
+      if (is_explicit)
+       {
+         if (oind < argc)
+           error (_("-break-insert: Garbage following explicit location"));
+       }
+      else
+       {
+         if (oind < argc - 1)
+           error (_("-break-insert: Garbage following <location>"));
+         address = argv[oind];
+       }
+    }
 
   /* Now we have what we need, let's insert the breakpoint!  */
-  if (! mi_breakpoint_observers_installed)
+  setup_breakpoint_reporting ();
+
+  if (tracepoint)
     {
-      observer_attach_breakpoint_created (breakpoint_notify);
-      mi_breakpoint_observers_installed = 1;
+      /* Note that to request a fast tracepoint, the client uses the
+        "hardware" flag, although there's nothing of hardware related to
+        fast tracepoints -- one can implement slow tracepoints with
+        hardware breakpoints, but fast tracepoints are always software.
+        "fast" is a misnomer, actually, "jump" would be more appropriate.
+        A simulator or an emulator could conceivably implement fast
+        regular non-jump based tracepoints.  */
+      type_wanted = hardware ? bp_fast_tracepoint : bp_tracepoint;
+      ops = &tracepoint_breakpoint_ops;
+    }
+  else if (dprintf)
+    {
+      type_wanted = bp_dprintf;
+      ops = &dprintf_breakpoint_ops;
+    }
+  else
+    {
+      type_wanted = hardware ? bp_hardware_breakpoint : bp_breakpoint;
+      ops = &bkpt_breakpoint_ops;
     }
 
-  back_to = make_cleanup_restore_integer (&mi_can_breakpoint_notify);
-  mi_can_breakpoint_notify = 1;
+  if (is_explicit)
+    {
+      /* Error check -- we must have one of the other
+        parameters specified.  */
+      if (explicit_loc.source_filename != NULL
+         && explicit_loc.function_name == NULL
+         && explicit_loc.label_name == NULL
+         && explicit_loc.line_offset.sign == LINE_OFFSET_UNKNOWN)
+       error (_("-%s-insert: --source option requires --function, --label,"
+                " or --line"), dprintf ? "dprintf" : "break");
+
+      location = new_explicit_location (&explicit_loc);
+    }
+  else
+    {
+      location = string_to_event_location_basic (&address, current_language);
+      if (*address)
+       error (_("Garbage '%s' at end of location"), address);
+    }
 
-  /* Note that to request a fast tracepoint, the client uses the
-     "hardware" flag, although there's nothing of hardware related to
-     fast tracepoints -- one can implement slow tracepoints with
-     hardware breakpoints, but fast tracepoints are always software.
-     "fast" is a misnomer, actually, "jump" would be more appropriate.
-     A simulator or an emulator could conceivably implement fast
-     regular non-jump based tracepoints.  */
-  type_wanted = (tracepoint
-                ? (hardware ? bp_fast_tracepoint : bp_tracepoint)
-                : (hardware ? bp_hardware_breakpoint : bp_breakpoint));
-  ops = tracepoint ? &tracepoint_breakpoint_ops : &bkpt_breakpoint_ops;
-
-  create_breakpoint (get_current_arch (), address, condition, thread,
-                    NULL,
+  create_breakpoint (get_current_arch (), location.get (), condition, thread,
+                    extra_string,
                     0 /* condition and thread are valid.  */,
                     temp_p, type_wanted,
                     ignore_count,
                     pending ? AUTO_BOOLEAN_TRUE : AUTO_BOOLEAN_FALSE,
                     ops, 0, enabled, 0, 0);
   do_cleanups (back_to);
+}
 
+/* Implements the -break-insert command.
+   See the MI manual for the list of possible options.  */
+
+void
+mi_cmd_break_insert (const char *command, char **argv, int argc)
+{
+  mi_cmd_break_insert_1 (0, command, argv, argc);
+}
+
+/* Implements the -dprintf-insert command.
+   See the MI manual for the list of possible options.  */
+
+void
+mi_cmd_dprintf_insert (const char *command, char **argv, int argc)
+{
+  mi_cmd_break_insert_1 (1, command, argv, argc);
 }
 
 enum wp_type
@@ -184,7 +382,7 @@ enum wp_type
 };
 
 void
-mi_cmd_break_passcount (char *command, char **argv, int argc)
+mi_cmd_break_passcount (const char *command, char **argv, int argc)
 {
   int n;
   int p;
@@ -200,7 +398,7 @@ mi_cmd_break_passcount (char *command, char **argv, int argc)
   if (t)
     {
       t->pass_count = p;
-      observer_notify_tracepoint_modified (n);
+      observer_notify_breakpoint_modified (&t->base);
     }
   else
     {
@@ -215,7 +413,7 @@ mi_cmd_break_passcount (char *command, char **argv, int argc)
    -break-watch -a <expr> --> insert an access wp.  */
 
 void
-mi_cmd_break_watch (char *command, char **argv, int argc)
+mi_cmd_break_watch (const char *command, char **argv, int argc)
 {
   char *expr = NULL;
   enum wp_type type = REG_WP;
@@ -293,9 +491,9 @@ mi_read_next_line (void)
 }
 
 void
-mi_cmd_break_commands (char *command, char **argv, int argc)
+mi_cmd_break_commands (const char *command, char **argv, int argc)
 {
-  struct command_line *break_command;
+  command_line_up break_command;
   char *endptr;
   int bnum;
   struct breakpoint *b;
@@ -325,6 +523,6 @@ mi_cmd_break_commands (char *command, char **argv, int argc)
   else
     break_command = read_command_lines_1 (mi_read_next_line, 1, 0, 0);
 
-  breakpoint_set_commands (b, break_command);
+  breakpoint_set_commands (b, std::move (break_command));
 }
 
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