gdb: remove duplicate declaration of 'find_thread_ptid'

[deliverable/binutils-gdb.git] / gdb / event-top.h

diff --git a/gdb/event-top.h b/gdb/event-top.h
index 05241ad0a63a31fab0ba93ff83963a5962ef3521..b036f1385c591d87ac1cac4a9a359d76896eb116 100644 (file)
--- a/gdb/event-top.h
+++ b/gdb/event-top.h
@@ -1,6 +1,6 @@
 /* Definitions used by event-top.c, for GDB, the GNU debugger.
 
-   Copyright (C) 1999-2017 Free Software Foundation, Inc.
+   Copyright (C) 1999-2021 Free Software Foundation, Inc.
 
    Written by Elena Zannoni <ezannoni@cygnus.com> of Cygnus Solutions.
 
@@ -22,6 +22,8 @@
 #ifndef EVENT_TOP_H
 #define EVENT_TOP_H
 
+#include <signal.h>
+
 struct cmd_list_element;
 
 /* Exported functions from event-top.c.
@@ -33,17 +35,13 @@ extern void gdb_disable_readline (void);
 extern void async_init_signals (void);
 extern void change_line_handler (int);
 
-extern void command_line_handler (char *rl);
-extern void command_handler (char *command);
+extern void command_line_handler (gdb::unique_xmalloc_ptr<char> &&rl);
+extern void command_handler (const char *command);
 
-/* Signal to catch ^Z typed while reading a command: SIGTSTP or SIGCONT.  */
-#ifndef STOP_SIGNAL
-#include <signal.h>
 #ifdef SIGTSTP
-#define STOP_SIGNAL SIGTSTP
-extern void handle_stop_sig (int sig);
-#endif
+extern void handle_sigtstp (int sig);
 #endif
+
 extern void handle_sigint (int sig);
 extern void handle_sigterm (int sig);
 extern void async_request_quit (void *arg);
@@ -54,8 +52,8 @@ extern void async_enable_stdin (void);
 /* Exported variables from event-top.c.
    FIXME: these should really go into top.h.  */
 
-extern int set_editing_cmd_var;
-extern int exec_done_display_p;
+extern bool set_editing_cmd_var;
+extern bool exec_done_display_p;
 extern struct prompts the_prompts;
 extern void (*after_char_processing_hook) (void);
 extern int call_stdin_event_handler_again_p;
@@ -72,4 +70,19 @@ extern void gdb_rl_callback_handler_install (const char *prompt);
    currently installed.  */
 extern void gdb_rl_callback_handler_reinstall (void);
 
+typedef void (*segv_handler_t) (int);
+
+/* On construction, replaces the current thread's SIGSEGV handler with
+   the provided one.  On destruction, restores the handler to the
+   original one.  */
+class scoped_segv_handler_restore
+{
+ public:
+  scoped_segv_handler_restore (segv_handler_t new_handler);
+  ~scoped_segv_handler_restore ();
+
+ private:
+  segv_handler_t m_old_handler;
+};
+
 #endif