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Diffstat (limited to 'lib/asan/output_tests/clone_test.cc')
-rw-r--r-- | lib/asan/output_tests/clone_test.cc | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/asan/output_tests/clone_test.cc b/lib/asan/output_tests/clone_test.cc new file mode 100644 index 0000000..b18d255 --- /dev/null +++ b/lib/asan/output_tests/clone_test.cc @@ -0,0 +1,34 @@ +#ifdef __linux__ +#include <stdio.h> +#include <sched.h> +#include <sys/syscall.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> + +int Child(void *arg) { + char x[32] = {0}; // Stack gets poisoned. + printf("Child: %p\n", x); + _exit(1); // NoReturn, stack will remain unpoisoned unless we do something. +} + +int main(int argc, char **argv) { + const int kStackSize = 1 << 20; + char child_stack[kStackSize + 1]; + char *sp = child_stack + kStackSize; // Stack grows down. + printf("Parent: %p\n", sp); + pid_t clone_pid = clone(Child, sp, CLONE_FILES | CLONE_VM, NULL, 0, 0, 0); + waitpid(clone_pid, NULL, 0); + for (int i = 0; i < kStackSize; i++) + child_stack[i] = i; + int ret = child_stack[argc - 1]; + printf("PASSED\n"); + return ret; +} +#else // not __linux__ +#include <stdio.h> +int main() { + printf("PASSED\n"); + // Check-Common: PASSED +} +#endif |