Change in binutils-gdb[master]: Change iterate_over_breakpoints to take a function_view
Christian Biesinger (Code Review)
gerrit@gnutoolchain-gerrit.osci.io
Tue Oct 15 08:43:00 GMT 2019
Christian Biesinger has uploaded a new patch set version (#3).
Change URL: https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/21
......................................................................
Change iterate_over_breakpoints to take a function_view
This allows callers to pass in capturing lambdas. Also changes the return
type to bool.
2019-10-09 Christian Biesinger <cbiesinger@google.com>
* breakpoint.c (iterate_over_breakpoints): Change function pointer
to a gdb::function_view and return value to bool.
* breakpoint.h (iterate_over_breakpoints): Likewise.
* dummy-frame.c (pop_dummy_frame_bpt): Update.
(pop_dummy_frame): Update.
* guile/scm-breakpoint.c (bpscm_build_bp_list): Update.
(gdbscm_breakpoints): Update.
* python/py-breakpoint.c (build_bp_list): Update.
(gdbpy_breakpoints): Update.
* python/py-finishbreakpoint.c (bpfinishpy_detect_out_scope_cb):
Update.
(bpfinishpy_handle_stop): Update.
(bpfinishpy_handle_exit): Update.
* solib-svr4.c (svr4_update_solib_event_breakpoint): Update.
(svr4_update_solib_event_breakpoints): Update.
Change-Id: Ia9de4deecae562a70a40f5cd49f5a74d64570251
---
M gdb/breakpoint.c
M gdb/breakpoint.h
M gdb/dummy-frame.c
M gdb/guile/scm-breakpoint.c
M gdb/python/py-breakpoint.c
M gdb/python/py-finishbreakpoint.c
M gdb/solib-svr4.c
7 files changed, 46 insertions(+), 38 deletions(-)
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 31f4005..9bbb28f 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -15128,14 +15128,13 @@
}
struct breakpoint *
-iterate_over_breakpoints (int (*callback) (struct breakpoint *, void *),
- void *data)
+iterate_over_breakpoints (gdb::function_view<bool (breakpoint *)> callback)
{
struct breakpoint *b, *b_tmp;
ALL_BREAKPOINTS_SAFE (b, b_tmp)
{
- if ((*callback) (b, data))
+ if (callback (b))
return b;
}
diff --git a/gdb/breakpoint.h b/gdb/breakpoint.h
index 9791032..7472c0e 100644
--- a/gdb/breakpoint.h
+++ b/gdb/breakpoint.h
@@ -29,6 +29,7 @@
#include "location.h"
#include <vector>
#include "gdbsupport/array-view.h"
+#include "gdbsupport/function-view.h"
#include "cli/cli-script.h"
struct block;
@@ -1664,8 +1665,8 @@
returned. This can be useful for implementing a search for a
breakpoint with arbitrary attributes, or for applying an operation
to every breakpoint. */
-extern struct breakpoint *iterate_over_breakpoints (int (*) (struct breakpoint *,
- void *), void *);
+extern struct breakpoint *iterate_over_breakpoints
+ (gdb::function_view<bool (breakpoint *)>);
/* Nonzero if the specified PC cannot be a location where functions
have been inlined. */
diff --git a/gdb/dummy-frame.c b/gdb/dummy-frame.c
index d3ede7c..3b76d45 100644
--- a/gdb/dummy-frame.c
+++ b/gdb/dummy-frame.c
@@ -126,11 +126,9 @@
/* Delete any breakpoint B which is a momentary breakpoint for return from
inferior call matching DUMMY_VOIDP. */
-static int
-pop_dummy_frame_bpt (struct breakpoint *b, void *dummy_voidp)
+static bool
+pop_dummy_frame_bpt (struct breakpoint *b, struct dummy_frame *dummy)
{
- struct dummy_frame *dummy = (struct dummy_frame *) dummy_voidp;
-
if (b->thread == dummy->id.thread->global_num
&& b->disposition == disp_del && frame_id_eq (b->frame_id, dummy->id.id))
{
@@ -140,11 +138,11 @@
delete_breakpoint (b);
/* Stop the traversal. */
- return 1;
+ return true;
}
/* Continue the traversal. */
- return 0;
+ return false;
}
/* Pop *DUMMY_PTR, restoring program state to that before the
@@ -168,7 +166,10 @@
restore_infcall_suspend_state (dummy->caller_state);
- iterate_over_breakpoints (pop_dummy_frame_bpt, dummy);
+ iterate_over_breakpoints ([dummy] (breakpoint* bp)
+ {
+ return pop_dummy_frame_bpt (bp, dummy);
+ });
/* restore_infcall_control_state frees inf_state,
all that remains is to pop *dummy_ptr. */
diff --git a/gdb/guile/scm-breakpoint.c b/gdb/guile/scm-breakpoint.c
index 9a4efee..a75daa0 100644
--- a/gdb/guile/scm-breakpoint.c
+++ b/gdb/guile/scm-breakpoint.c
@@ -505,10 +505,9 @@
/* iterate_over_breakpoints function for gdbscm_breakpoints. */
-static int
-bpscm_build_bp_list (struct breakpoint *bp, void *arg)
+static bool
+bpscm_build_bp_list (struct breakpoint *bp, SCM *list)
{
- SCM *list = (SCM *) arg;
breakpoint_smob *bp_smob = bp->scm_bp_object;
/* Lazily create wrappers for breakpoints created outside Scheme. */
@@ -534,7 +533,7 @@
if (bp_smob != NULL)
*list = scm_cons (bp_smob->containing_scm, *list);
- return 0;
+ return false;
}
/* (breakpoints) -> list
@@ -545,11 +544,10 @@
{
SCM list = SCM_EOL;
- /* If iterate_over_breakpoints returns non-NULL it means the iteration
- terminated early.
- In that case abandon building the list and return #f. */
- if (iterate_over_breakpoints (bpscm_build_bp_list, &list) != NULL)
- return SCM_BOOL_F;
+ iterate_over_breakpoints ([&] (breakpoint *bp)
+ {
+ return bpscm_build_bp_list(bp, &list);
+ });
return scm_reverse_x (list, SCM_EOL);
}
diff --git a/gdb/python/py-breakpoint.c b/gdb/python/py-breakpoint.c
index 698d91e..65cb29f 100644
--- a/gdb/python/py-breakpoint.c
+++ b/gdb/python/py-breakpoint.c
@@ -871,10 +871,9 @@
-static int
-build_bp_list (struct breakpoint *b, void *arg)
+static bool
+build_bp_list (struct breakpoint *b, PyObject *list)
{
- PyObject *list = (PyObject *) arg;
PyObject *bp = (PyObject *) b->py_bp_object;
int iserr = 0;
@@ -886,9 +885,9 @@
iserr = PyList_Append (list, bp);
if (iserr == -1)
- return 1;
+ return true;
- return 0;
+ return false;
}
/* Static function to return a tuple holding all breakpoints. */
@@ -906,7 +905,11 @@
/* If iterate_over_breakpoints returns non NULL it signals an error
condition. In that case abandon building the list and return
NULL. */
- if (iterate_over_breakpoints (build_bp_list, list.get ()) != NULL)
+ auto callback = [&] (breakpoint *bp)
+ {
+ return build_bp_list(bp, list.get ());
+ };
+ if (iterate_over_breakpoints (callback) != NULL)
return NULL;
return PyList_AsTuple (list.get ());
diff --git a/gdb/python/py-finishbreakpoint.c b/gdb/python/py-finishbreakpoint.c
index 7784a92..7f81821 100644
--- a/gdb/python/py-finishbreakpoint.c
+++ b/gdb/python/py-finishbreakpoint.c
@@ -341,10 +341,10 @@
/* Callback for `bpfinishpy_detect_out_scope'. Triggers Python's
`B->out_of_scope' function if B is a FinishBreakpoint out of its scope. */
-static int
-bpfinishpy_detect_out_scope_cb (struct breakpoint *b, void *args)
+static bool
+bpfinishpy_detect_out_scope_cb (struct breakpoint *b,
+ struct breakpoint *bp_stopped)
{
- struct breakpoint *bp_stopped = (struct breakpoint *) args;
PyObject *py_bp = (PyObject *) b->py_bp_object;
/* Trigger out_of_scope if this is a FinishBreakpoint and its frame is
@@ -383,8 +383,11 @@
{
gdbpy_enter enter_py (get_current_arch (), current_language);
- iterate_over_breakpoints (bpfinishpy_detect_out_scope_cb,
- bs == NULL ? NULL : bs->breakpoint_at);
+ iterate_over_breakpoints ([&] (breakpoint *bp)
+ {
+ return bpfinishpy_detect_out_scope_cb
+ (bp, bs == NULL ? NULL : bs->breakpoint_at);
+ });
}
/* Attached to `exit' notifications, triggers all the necessary out of
@@ -395,7 +398,10 @@
{
gdbpy_enter enter_py (target_gdbarch (), current_language);
- iterate_over_breakpoints (bpfinishpy_detect_out_scope_cb, NULL);
+ iterate_over_breakpoints ([&] (breakpoint *bp)
+ {
+ return bpfinishpy_detect_out_scope_cb (bp, nullptr);
+ });
}
/* Initialize the Python finish breakpoint code. */
diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c
index aa4af34..486ae12 100644
--- a/gdb/solib-svr4.c
+++ b/gdb/solib-svr4.c
@@ -1991,15 +1991,15 @@
/* Helper function for svr4_update_solib_event_breakpoints. */
-static int
-svr4_update_solib_event_breakpoint (struct breakpoint *b, void *arg)
+static bool
+svr4_update_solib_event_breakpoint (struct breakpoint *b)
{
struct bp_location *loc;
if (b->type != bp_shlib_event)
{
/* Continue iterating. */
- return 0;
+ return false;
}
for (loc = b->loc; loc != NULL; loc = loc->next)
@@ -2027,7 +2027,7 @@
}
/* Continue iterating. */
- return 0;
+ return false;
}
/* Enable or disable optional solib event breakpoints as appropriate.
@@ -2036,7 +2036,7 @@
static void
svr4_update_solib_event_breakpoints (void)
{
- iterate_over_breakpoints (svr4_update_solib_event_breakpoint, NULL);
+ iterate_over_breakpoints (svr4_update_solib_event_breakpoint);
}
/* Create and register solib event breakpoints. PROBES is an array
--
To view, visit https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/21
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