1// RUN: %clangxx %s -fsanitize-memory-track-origins=1 -o %t
2// RUN: %env_tool_opts="compress_stack_depot=0:malloc_context_size=128:verbosity=1" %run %t 2>&1 | FileCheck %s --implicit-check-not="StackDepot released"
3// RUN: %env_tool_opts="compress_stack_depot=-1:malloc_context_size=128:verbosity=1" %run %t 2>&1 | FileCheck %s --check-prefixes=COMPRESS
4// RUN: %env_tool_opts="compress_stack_depot=-2:malloc_context_size=128:verbosity=1" %run %t 2>&1 | FileCheck %s --check-prefixes=COMPRESS
5// RUN: %env_tool_opts="compress_stack_depot=1:malloc_context_size=128:verbosity=1" %run %t 2>&1 | FileCheck %s --check-prefixes=COMPRESS,THREAD
6// RUN: %env_tool_opts="compress_stack_depot=2:malloc_context_size=128:verbosity=1" %run %t 2>&1 | FileCheck %s --check-prefixes=COMPRESS,THREAD
7
8// Ubsan does not store stacks.
9// UNSUPPORTED: ubsan
10
11// FIXME: Fails for unknown reason.
12// UNSUPPORTED: target=s390x{{.*}}
13
14// Similar to D114934, something is broken with background thread on THUMB and Asan.
15// XFAIL: target=thumb{{.*}} && asan
16
17#include <sanitizer/common_interface_defs.h>
18
19#include <memory>
20
21__attribute__((noinline)) void a(unsigned v);
22__attribute__((noinline)) void b(unsigned v);
23
24std::unique_ptr<int[]> p;
25
26__attribute__((noinline)) void a(unsigned v) {
27 int x;
28 v >>= 1;
29 if (!v) {
30 p.reset(new int[100]);
31 p[1] = x;
32 return;
33 }
34 if (v & 1)
35 b(v);
36 else
37 a(v);
38}
39
40__attribute__((noinline)) void b(unsigned v) { return a(v); }
41
42int main(int argc, char *argv[]) {
43 for (unsigned i = 0; i < 100000; ++i)
44 a(v: i + (i << 16));
45
46 __sanitizer_sandbox_arguments args = {.coverage_sandboxed: 0};
47 __sanitizer_sandbox_on_notify(args: &args);
48
49 return 0;
50}
51
52// THREAD: StackDepot compression thread started
53// COMPRESS: StackDepot released {{[0-9]+}}
54// THREAD: StackDepot compression thread stopped
55

source code of compiler-rt/test/sanitizer_common/TestCases/compress_stack_depot.cpp