You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.2 KiB
50 lines
1.2 KiB
4 months ago
|
// RUN: %clangxx_asan -std=c++11 -O0 %s -o %t
|
||
|
|
// RUN: %run %t 2>&1 | FileCheck %s
|
||
|
|
// RUN: %env_asan_opts=debug=1,verbosity=2 %run %t 2>&1 | FileCheck %s
|
||
|
|
|
||
|
|
// Test ASan initialization
|
||
|
|
|
||
|
|
// This test closes the 0, 1, and 2 file descriptors before an exec() and relies
|
||
|
|
// on them remaining closed across an execve(). This is not the case on newer
|
||
|
|
// versions of Android. On PPC with ASLR turned on, this fails when linked with
|
||
|
|
// lld - see https://bugs.llvm.org/show_bug.cgi?id=45076.
|
||
|
|
// UNSUPPORTED: android, powerpc
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
extern "C" const char *__asan_default_options() {
|
||
|
|
return "test_only_emulate_no_memorymap=1";
|
||
|
|
}
|
||
|
|
|
||
|
|
void parent(int argc, char **argv) {
|
||
|
|
fprintf(stderr, "hello\n");
|
||
|
|
// CHECK: hello
|
||
|
|
close(0);
|
||
|
|
close(1);
|
||
|
|
dup2(2, 3);
|
||
|
|
close(2);
|
||
|
|
char *const newargv[] = {argv[0], (char *)"x", nullptr};
|
||
|
|
execv(argv[0], newargv);
|
||
|
|
perror("execve");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void child() {
|
||
|
|
assert(dup(3) == 0);
|
||
|
|
assert(dup(3) == 1);
|
||
|
|
assert(dup(3) == 2);
|
||
|
|
fprintf(stderr, "world\n");
|
||
|
|
// CHECK: world
|
||
|
|
}
|
||
|
|
|
||
|
|
int main(int argc, char **argv) {
|
||
|
|
if (argc == 1) {
|
||
|
|
parent(argc, argv);
|
||
|
|
} else {
|
||
|
|
child();
|
||
|
|
}
|
||
|
|
}
|