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authorTom Tromey <tom@tromey.com>2019-01-23 16:28:28 -0700
committerTom Tromey <tom@tromey.com>2019-03-06 16:04:32 -0700
commit9799571ecb648ea2e911498cfdc7fafe3237c94a (patch)
tree1ee04f526ba57ad81ad84e24d2d13960570f7bad /gdb
parent09e3c4ca13e39b797b91b07280ac025327a8a526 (diff)
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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 <tom@tromey.com> * infrun.c (displaced_step_clear_cleanup): Now a forward_scope_exit type. (displaced_step_prepare_throw): Update. (displaced_step_fixup): Update.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog7
-rw-r--r--gdb/infrun.c30
2 files changed, 18 insertions, 19 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 11878bd..f7f30b3 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,12 @@
2019-03-06 Tom Tromey <tom@tromey.com>
+ * 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 <tom@tromey.com>
+
* inferior.h (class inferior): Update comment.
* gdbthread.h (class thread_info): Update comment.
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 6d1d04e..61467be 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;
}