blob: 7ccbe43585f25c05c5b9abb0a75f4e1ddc27a4f9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
// Test that fake stack (introduced by ASan's use-after-return mode) is included
// in the root set.
// RUN: LSAN_BASE="report_objects=1:use_registers=0"
// RUN: %clangxx_lsan %s -O2 -o %t
// RUN: ASAN_OPTIONS=$ASAN_OPTIONS:detect_stack_use_after_return=1 LSAN_OPTIONS=$LSAN_BASE:"use_stacks=0" not %t 2>&1 | FileCheck %s
// RUN: ASAN_OPTIONS=$ASAN_OPTIONS:detect_stack_use_after_return=1 LSAN_OPTIONS=$LSAN_BASE:"use_stacks=1" %t 2>&1
// RUN: ASAN_OPTIONS=$ASAN_OPTIONS:detect_stack_use_after_return=1 LSAN_OPTIONS="" %t 2>&1
#include <stdio.h>
#include <stdlib.h>
int main() {
void *stack_var = malloc(1337);
fprintf(stderr, "Test alloc: %p.\n", stack_var);
// Take pointer to variable, to ensure it's not optimized into a register.
fprintf(stderr, "Stack var at: %p.\n", &stack_var);
// Do not return from main to prevent the pointer from going out of scope.
exit(0);
}
// CHECK: Test alloc: [[ADDR:.*]].
// CHECK: Directly leaked 1337 byte object at [[ADDR]]
// CHECK: LeakSanitizer: detected memory leaks
// CHECK: SUMMARY: LeakSanitizer:
|
