llvm-project/compiler-rt/test/lsan/TestCases/use_globals_unused.cpp

42 lines
965 B
C++

// Test that unused globals are included in the root set.
// RUN: %clangxx_lsan -O2 %s -DTEST_LIB -c -o %t.o
// RUN: %clangxx_lsan -O2 %s %t.o -o %t
// RUN: LSAN_BASE="use_stacks=0:use_registers=0"
// RUN: %env_lsan_opts=$LSAN_BASE:"use_globals=1" %run %t 2>&1 | FileCheck %s --implicit-check-not=leak
// RUN: %env_lsan_opts="" %run %t 2>&1 | FileCheck %s --implicit-check-not=leak
// FIXME: This check is not very important and fails on arm7.
// %env_lsan_opts=$LSAN_BASE:"use_globals=0" not %run %t 2>&1 | FileCheck %s --check-prefixes=LEAK
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef TEST_LIB
void set(char *a) {
strcpy(a, "hello");
}
#else
static void *g;
void set(char *a);
void foo(void *a) {
// Store from a different function to suppress global localization.
g = a;
}
int main() {
char a[10];
set(a);
char *b = strdup(a);
printf("%p %s\n", b, b);
g = b;
}
#endif
// LEAK: LeakSanitizer: detected memory leaks