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/* { dg-do compile } */
/* { dg-options "-fdiagnostics-path-format=inline-events -fdiagnostics-show-caret" } */
#include <stdlib.h>
void *wrapped_malloc (size_t size)
{
return malloc (size);
}
void wrapped_free (void *ptr)
{
free (ptr); /* { dg-warning "double-free of 'ptr' \\\[CWE-415\\]" } */
/* { dg-begin-multiline-output "" }
free (ptr);
^~~~~~~~~~
'test': events 1-2
|
| {
| ^
| |
| (1) entering 'test'
| boxed_int *obj = make_boxed_int (i);
| ~~~~~~~~~~~~~~~~~~
| |
| (2) calling 'make_boxed_int'
|
+--> 'make_boxed_int': events 3-4
|
| {
| ^
| |
| (3) entering 'make_boxed_int'
| boxed_int *result = (boxed_int *)wrapped_malloc (sizeof (boxed_int));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| |
| (4) calling 'wrapped_malloc'
|
+--> 'wrapped_malloc': events 5-6
|
| {
| ^
| |
| (5) entering 'wrapped_malloc'
| return malloc (size);
| ~~~~~~~~~~~~~
| |
| (6) calling 'malloc'
|
<-------------+
|
'test': event 7
|
| free_boxed_int (obj);
| ^~~~~~~~~~~~~~~~~~~~
| |
| (7) calling 'free_boxed_int'
|
+--> 'free_boxed_int': events 8-9
|
| {
| ^
| |
| (8) entering 'free_boxed_int'
| wrapped_free (bi);
| ~~~~~~~~~~~~~~~~~
| |
| (9) calling 'wrapped_free'
|
+--> 'wrapped_free': events 10-11
|
| {
| ^
| |
| (10) entering 'wrapped_free'
| free (ptr);
| ~~~~~~~~~~
| |
| (11) calling 'free'
|
<-------------+
|
'test': event 12
|
| free_boxed_int (obj);
| ^~~~~~~~~~~~~~~~~~~~
| |
| (12) calling 'free_boxed_int'
|
+--> 'free_boxed_int': events 13-14
|
| {
| ^
| |
| (13) entering 'free_boxed_int'
| wrapped_free (bi);
| ~~~~~~~~~~~~~~~~~
| |
| (14) calling 'wrapped_free'
|
+--> 'wrapped_free': events 15-16
|
| {
| ^
| |
| (15) entering 'wrapped_free'
| free (ptr);
| ~~~~~~~~~~
| |
| (16) calling 'free'
|
{ dg-end-multiline-output "" } */
}
typedef struct boxed_int
{
int i;
} boxed_int;
boxed_int *
make_boxed_int (int i)
{
boxed_int *result = (boxed_int *)wrapped_malloc (sizeof (boxed_int));
result->i = i;
return result;
}
void
free_boxed_int (boxed_int *bi)
{
wrapped_free (bi);
}
void test (int i)
{
boxed_int *obj = make_boxed_int (i);
free_boxed_int (obj);
free_boxed_int (obj);
}
|
