Viewing file:  setjmp-7a.c (2.8 KB) -rw-r--r--
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/* { dg-additional-options "-fdiagnostics-show-line-numbers -fdiagnostics-path-format=inline-events -fdiagnostics-show-caret" } */
/* { dg-enable-nn-line-numbers "" } */
/* { dg-require-effective-target indirect_jumps } */
#include "test-setjmp.h"
#include <stdlib.h>
extern int foo (int) __attribute__ ((__pure__));
static jmp_buf env;
static void inner (void)
{
longjmp (env, 1); /* { dg-warning "leak of 'ptr'" } */
}
static void middle (void)
{
void *ptr = malloc (1024);
inner ();
free (ptr);
}
void outer (void)
{
int i;
foo (0);
i = SETJMP(env);
if (i == 0)
{
foo (1);
middle ();
}
foo (3);
}
/* { dg-begin-multiline-output "" }
NN | longjmp (env, 1);
| ^~~~~~~~~~~~~~~~
'outer': event 1
|
| NN | void outer (void)
| | ^~~~~
| | |
| | (1) entry to 'outer'
|
'outer': event 2
|
| NN | i = SETJMP(env);
| | ^~~~~~
| | |
| | (2) 'setjmp' called here
|
'outer': events 3-5
|
| NN | if (i == 0)
| | ^
| | |
| | (3) following 'true' branch (when 'i == 0')...
| NN | {
| NN | foo (1);
| | ~~~~~~~
| | |
| | (4) ...to here
| NN | middle ();
| | ~~~~~~~~~
| | |
| | (5) calling 'middle' from 'outer'
|
+--> 'middle': events 6-8
|
| NN | static void middle (void)
| | ^~~~~~
| | |
| | (6) entry to 'middle'
| NN | {
| NN | void *ptr = malloc (1024);
| | ~~~~~~~~~~~~~
| | |
| | (7) allocated here
| NN | inner ();
| | ~~~~~~~~
| | |
| | (8) calling 'inner' from 'middle'
|
+--> 'inner': events 9-11
|
| NN | static void inner (void)
| | ^~~~~
| | |
| | (9) entry to 'inner'
| NN | {
| NN | longjmp (env, 1);
| | ~~~~~~~~~~~~~~~~
| | |
| | (10) 'ptr' leaks here; was allocated at (7)
| | (11) rewinding from 'longjmp' in 'inner'...
|
<-------------+
|
'outer': event 12
|
| NN | i = SETJMP(env);
| | ^~~~~~
| | |
| | (12) ...to 'setjmp' in 'outer' (saved at (2))
|
{ dg-end-multiline-output "" } */
|
