From 9799571ecb648ea2e911498cfdc7fafe3237c94a Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Wed, 23 Jan 2019 16:28:28 -0700 Subject: [PATCH] Change displaced_step_clear_cleanup to a forward_scope_exit This changes displaced_step_clear_cleanup to be a forward_scope_exit and updates the callers. gdb/ChangeLog 2019-03-06 Tom Tromey * infrun.c (displaced_step_clear_cleanup): Now a forward_scope_exit type. (displaced_step_prepare_throw): Update. (displaced_step_fixup): Update. --- gdb/ChangeLog | 7 +++++++ gdb/infrun.c | 30 +++++++++++------------------- 2 files changed, 18 insertions(+), 19 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 11878bd1958..f7f30b3aa1b 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,10 @@ +2019-03-06 Tom Tromey + + * infrun.c (displaced_step_clear_cleanup): Now a + forward_scope_exit type. + (displaced_step_prepare_throw): Update. + (displaced_step_fixup): Update. + 2019-03-06 Tom Tromey * inferior.h (class inferior): Update comment. diff --git a/gdb/infrun.c b/gdb/infrun.c index 6d1d04ee695..61467be029b 100644 --- a/gdb/infrun.c +++ b/gdb/infrun.c @@ -68,6 +68,7 @@ #include "common/gdb_optional.h" #include "arch-utils.h" #include "common/scope-exit.h" +#include "common/forward-scope-exit.h" /* Prototypes for local functions */ @@ -1596,14 +1597,9 @@ displaced_step_clear (struct displaced_step_inferior_state *displaced) displaced->step_closure = NULL; } -static void -displaced_step_clear_cleanup (void *arg) -{ - struct displaced_step_inferior_state *state - = (struct displaced_step_inferior_state *) arg; - - displaced_step_clear (state); -} +/* A cleanup that wraps displaced_step_clear. */ +using displaced_step_clear_cleanup + = FORWARD_SCOPE_EXIT (displaced_step_clear); /* Dump LEN bytes at BUF in hex to FILE, followed by a newline. */ void @@ -1752,13 +1748,14 @@ displaced_step_prepare_throw (thread_info *tp) displaced->step_original = original; displaced->step_copy = copy; - cleanup *ignore_cleanups - = make_cleanup (displaced_step_clear_cleanup, displaced); + { + displaced_step_clear_cleanup cleanup (displaced); - /* Resume execution at the copy. */ - regcache_write_pc (regcache, copy); + /* Resume execution at the copy. */ + regcache_write_pc (regcache, copy); - discard_cleanups (ignore_cleanups); + cleanup.release (); + } if (debug_displaced) fprintf_unfiltered (gdb_stdlog, "displaced: displaced pc to %s\n", @@ -1848,7 +1845,6 @@ displaced_step_restore (struct displaced_step_inferior_state *displaced, static int displaced_step_fixup (thread_info *event_thread, enum gdb_signal signal) { - struct cleanup *old_cleanups; struct displaced_step_inferior_state *displaced = get_displaced_stepping_state (event_thread->inf); int ret; @@ -1857,7 +1853,7 @@ displaced_step_fixup (thread_info *event_thread, enum gdb_signal signal) if (displaced->step_thread != event_thread) return 0; - old_cleanups = make_cleanup (displaced_step_clear_cleanup, displaced); + displaced_step_clear_cleanup cleanup (displaced); displaced_step_restore (displaced, displaced->step_thread->ptid); @@ -1892,10 +1888,6 @@ displaced_step_fixup (thread_info *event_thread, enum gdb_signal signal) ret = -1; } - do_cleanups (old_cleanups); - - displaced->step_thread = nullptr; - return ret; } -- 2.30.2