diff options
Diffstat (limited to 'lib/lsan/lit_tests/TestCases/use_after_return.cc')
| -rw-r--r-- | lib/lsan/lit_tests/TestCases/use_after_return.cc | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/lsan/lit_tests/TestCases/use_after_return.cc b/lib/lsan/lit_tests/TestCases/use_after_return.cc new file mode 100644 index 00000000..7ccbe435 --- /dev/null +++ b/lib/lsan/lit_tests/TestCases/use_after_return.cc @@ -0,0 +1,23 @@ +// 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: |