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Replace delete_longjmp_breakpoint_cleanup with a forward_scope_exit type

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This removes delete_longjmp_breakpoint_cleanup in favor of forward_scope_exit.

gdb/ChangeLog:
2019-01-23  Tom Tromey  <tom@tromey.com>
	    Andrew Burgess  <andrew.burgess@embecosm.com>
	    Pedro Alves  <palves@redhat.com>

	* breakpoint.c (until_break_command): Use
	delete_longjmp_breakpoint_cleanup class.
	* infcmd.c (delete_longjmp_breakpoint_cleanup): Remove function.
	(until_next_command): Use delete_longjmp_breakpoint_cleanup class.
	* inferior.h: Include forward-scope-exit.h.
	(delete_longjmp_breakpoint_cleanup): Replace function declaration
	with FORWARD_SCOPE_EXIT type.
This commit is contained in:
Tom Tromey 2019-01-23 18:58:31 +00:00 committed by Pedro Alves
parent e587ef421e
commit 5419bdae55
4 changed files with 15 additions and 16 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2019-01-23 Tom Tromey <tom@tromey.com>
Andrew Burgess <andrew.burgess@embecosm.com>
Pedro Alves <palves@redhat.com>
2019-01-23 Pedro Alves <palves@redhat.com>
* gdbarch-selftests.c (struct on_exit): Use SCOPE_EXIT.

11
gdb/breakpoint.c
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@ -11073,7 +11073,6 @@ until_break_command (const char *arg, int from_tty, int anywhere)
struct gdbarch *frame_gdbarch;
struct frame_id stack_frame_id;
struct frame_id caller_frame_id;
struct cleanup *old_chain;
int thread;
struct thread_info *tp;
struct until_break_fsm *sm;
@ -11106,8 +11105,6 @@ until_break_command (const char *arg, int from_tty, int anywhere)
tp = inferior_thread ();
thread = tp->global_num;
old_chain = make_cleanup (null_cleanup, NULL);
/* Note linespec handling above invalidates the frame chain.
Installing a breakpoint also invalidates the frame chain (as it
may need to switch threads), so do any frame handling before
@ -11122,6 +11119,9 @@ until_break_command (const char *arg, int from_tty, int anywhere)
one. */
breakpoint_up caller_breakpoint;
gdb::optional<delete_longjmp_breakpoint_cleanup> lj_deleter;
if (frame_id_p (caller_frame_id))
{
struct symtab_and_line sal2;
@ -11136,7 +11136,7 @@ until_break_command (const char *arg, int from_tty, int anywhere)
bp_until);
set_longjmp_breakpoint (tp, caller_frame_id);
make_cleanup (delete_longjmp_breakpoint_cleanup, &thread);
lj_deleter.emplace (thread);
}
/* set_momentary_breakpoint could invalidate FRAME. */
@ -11159,7 +11159,8 @@ until_break_command (const char *arg, int from_tty, int anywhere)
std::move (caller_breakpoint));
tp->thread_fsm = &sm->thread_fsm;
discard_cleanups (old_chain);
if (lj_deleter)
lj_deleter->release ();
proceed (-1, GDB_SIGNAL_DEFAULT);
}

12
gdb/infcmd.c
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@ -947,13 +947,6 @@ nexti_command (const char *count_string, int from_tty)
step_1 (1, 1, count_string);
}
void
delete_longjmp_breakpoint_cleanup (void *arg)
{
int thread = * (int *) arg;
delete_longjmp_breakpoint (thread);
}
/* Data for the FSM that manages the step/next/stepi/nexti
commands. */
@ -1517,7 +1510,6 @@ until_next_command (int from_tty)
struct symtab_and_line sal;
struct thread_info *tp = inferior_thread ();
int thread = tp->global_num;
struct cleanup *old_chain;
struct until_next_fsm *sm;
clear_proceed_status (0);
@ -1556,11 +1548,11 @@ until_next_command (int from_tty)
tp->control.step_over_calls = STEP_OVER_ALL;
set_longjmp_breakpoint (tp, get_frame_id (frame));
old_chain = make_cleanup (delete_longjmp_breakpoint_cleanup, &thread);
delete_longjmp_breakpoint_cleanup lj_deleter (thread);
sm = new_until_next_fsm (command_interp (), tp->global_num);
tp->thread_fsm = &sm->thread_fsm;
discard_cleanups (old_chain);
lj_deleter.release ();
proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT);
}

4
gdb/inferior.h
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@ -51,6 +51,7 @@ struct thread_info;
#include "symfile-add-flags.h"
#include "common/refcounted-object.h"
#include "common/forward-scope-exit.h"
#include "common-inferior.h"
#include "gdbthread.h"
@ -198,7 +199,8 @@ extern void continue_1 (int all_threads);
extern void interrupt_target_1 (int all_threads);
extern void delete_longjmp_breakpoint_cleanup (void *arg);
using delete_longjmp_breakpoint_cleanup
= FORWARD_SCOPE_EXIT (delete_longjmp_breakpoint);
extern void detach_command (const char *, int);