aprantl created this revision.
aprantl added reviewers: jingham, Michael137.
Herald added a subscriber: kristof.beyls.
Herald added a project: All.
aprantl requested review of this revision.
Depending on the compiler I've seen that for example the step-in command can do
a column-step first before exiting out of the function:
* thread #1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1
frame #0: 0x0000000100003d80
a.out`called_from_nodebug_actual(some_value=5) at with-debug.
c:10:10
2
3 typedef int (*debug_callee) (int);
4
5 extern int no_debug_caller (int, debug_callee);
6
7 int called_from_nodebug_actual(int some_value) {
8 int return_value = 0;
9 return_value = printf("Length: %d.\n", some_value);
-> 10 return return_value; // Stop here and step out of me
^
11 }
12
13 int called_from_nodebug(int some_value) {
14 int intermediate_return_value = 0;
15 intermediate_return_value = called_from_nodebug_actual(some_value);
16 return intermediate_return_value;
17 }
18
Process 58672 launched:
'/Volumes/Data/llvm-project/_build.ninja.release/lldb-test-build.noindex/functionalities/step-avoids-no-debug/TestStepNoDebug.test_step_out_with_python_dsym/a.out'
(arm64)
(lldb) s
Process 58672 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = step in
frame #0: 0x0000000100003d8c
a.out`called_from_nodebug_actual(some_value=5) at with-debug.c:10:3
2
3 typedef int (*debug_callee) (int);
4
5 extern int no_debug_caller (int, debug_callee);
6
7 int called_from_nodebug_actual(int some_value) {
8 int return_value = 0;
9 return_value = printf("Length: %d.\n", some_value);
-> 10 return return_value; // Stop here and step out of me
^
11 }
12
https://reviews.llvm.org/D152560
Files:
lldb/test/API/functionalities/step-avoids-no-debug/TestStepNoDebug.py
lldb/test/API/functionalities/step-avoids-no-debug/with-debug.c
lldb/test/API/functionalities/step-avoids-no-debug/without-debug.c
Index: lldb/test/API/functionalities/step-avoids-no-debug/without-debug.c
===================================================================
--- lldb/test/API/functionalities/step-avoids-no-debug/without-debug.c
+++ lldb/test/API/functionalities/step-avoids-no-debug/without-debug.c
@@ -1,16 +1,12 @@
-typedef int (*debug_callee) (int);
+typedef int (*debug_callee)(int);
-int
-no_debug_caller_intermediate(int input, debug_callee callee)
-{
+int no_debug_caller_intermediate(int input, debug_callee callee) {
int return_value = 0;
return_value = callee(input);
return return_value;
}
-int
-no_debug_caller (int input, debug_callee callee)
-{
+int no_debug_caller(int input, debug_callee callee) {
int return_value = 0;
return_value = no_debug_caller_intermediate (input, callee);
return return_value;
Index: lldb/test/API/functionalities/step-avoids-no-debug/with-debug.c
===================================================================
--- lldb/test/API/functionalities/step-avoids-no-debug/with-debug.c
+++ lldb/test/API/functionalities/step-avoids-no-debug/with-debug.c
@@ -4,26 +4,20 @@
extern int no_debug_caller (int, debug_callee);
-int
-called_from_nodebug_actual(int some_value)
-{
+int called_from_nodebug_actual(int some_value) {
int return_value = 0;
- return_value = printf ("Length: %d.\n", some_value);
+ return_value = printf("Length: %d.\n", some_value);
return return_value; // Stop here and step out of me
}
-int
-called_from_nodebug(int some_value)
-{
+int called_from_nodebug(int some_value) {
int intermediate_return_value = 0;
intermediate_return_value = called_from_nodebug_actual(some_value);
return intermediate_return_value;
}
-int
-main()
-{
+int main() {
int return_value = no_debug_caller(5, called_from_nodebug);
- printf ("I got: %d.\n", return_value);
+ printf("I got: %d.\n", return_value);
return 0;
}
Index: lldb/test/API/functionalities/step-avoids-no-debug/TestStepNoDebug.py
===================================================================
--- lldb/test/API/functionalities/step-avoids-no-debug/TestStepNoDebug.py
+++ lldb/test/API/functionalities/step-avoids-no-debug/TestStepNoDebug.py
@@ -106,9 +106,9 @@
self.thread = threads[0]
def do_step_out_past_nodebug(self):
- # The first step out takes us to the called_from_nodebug frame, just to make sure setting
- # step-out-avoid-nodebug doesn't change the behavior in frames with
- # debug info.
+ # The first step out takes us to the called_from_nodebug
+ # frame, just to make sure setting step-out-avoid-nodebug
+ # doesn't change the behavior in frames with debug info.
self.thread.StepOut()
self.hit_correct_line(
"intermediate_return_value = called_from_nodebug_actual(some_value)"
@@ -119,33 +119,41 @@
)
def do_step_over_past_nodebug(self):
- self.thread.StepOver()
+ while self.thread.frame[0].name == "called_from_nodebug_actual":
+ self.thread.StepOver()
self.hit_correct_line(
"intermediate_return_value = called_from_nodebug_actual(some_value)"
)
self.thread.StepOver()
self.hit_correct_line("return intermediate_return_value")
- self.thread.StepOver()
- # Note, lldb doesn't follow gdb's distinction between "step-out" and "step-over/step-in"
- # when exiting a frame. In all cases we leave the pc at the point where we exited the
- # frame. In gdb, step-over/step-in move to the end of the line they stepped out to.
- # If we ever change this we will need to fix this test.
+ while self.thread.frame[0].name == "called_from_nodebug":
+ self.thread.StepOver()
+ # Note, lldb doesn't follow gdb's distinction between
+ # "step-out" and "step-over/step-in" when exiting a frame. In
+ # all cases we leave the pc at the point where we exited the
+ # frame. In gdb, step-over/step-in move to the end of the
+ # line they stepped out to. If we ever change this we will
+ # need to fix this test.
self.hit_correct_line(
"int return_value = no_debug_caller(5, called_from_nodebug)"
)
def do_step_in_past_nodebug(self):
- self.thread.StepInto()
+ while self.thread.frame[0].name == "called_from_nodebug_actual":
+ self.thread.StepInto()
self.hit_correct_line(
"intermediate_return_value = called_from_nodebug_actual(some_value)"
)
self.thread.StepInto()
self.hit_correct_line("return intermediate_return_value")
- self.thread.StepInto()
- # Note, lldb doesn't follow gdb's distinction between "step-out" and "step-over/step-in"
- # when exiting a frame. In all cases we leave the pc at the point where we exited the
- # frame. In gdb, step-over/step-in move to the end of the line they stepped out to.
- # If we ever change this we will need to fix this test.
+ while self.thread.frame[0].name == "called_from_nodebug":
+ self.thread.StepInto()
+ # Note, lldb doesn't follow gdb's distinction between
+ # "step-out" and "step-over/step-in" when exiting a frame. In
+ # all cases we leave the pc at the point where we exited the
+ # frame. In gdb, step-over/step-in move to the end of the
+ # line they stepped out to. If we ever change this we will
+ # need to fix this test.
self.hit_correct_line(
"int return_value = no_debug_caller(5, called_from_nodebug)"
)
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