forked from OSchip/llvm-project
48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
|
// RUN: %clangxx_msan -std=c++11 -O0 -g %s -o %t
|
||
|
|
// RUN: %run %t __
|
||
|
|
// RUN: not %run %t A_ 2>&1 | FileCheck %s
|
||
|
|
// RUN: not %run %t AH 2>&1 | FileCheck %s
|
||
|
|
// RUN: not %run %t B_ 2>&1 | FileCheck %s
|
||
|
|
// RUN: not %run %t BH 2>&1 | FileCheck %s
|
||
|
|
// RUN: not %run %t C_ 2>&1 | FileCheck %s
|
||
|
|
// RUN: not %run %t CH 2>&1 | FileCheck %s
|
||
|
|
|
||
|
|
#include <assert.h>
|
||
|
|
#include <signal.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <sys/time.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#include <sanitizer/msan_interface.h>
|
||
|
|
|
||
|
|
void handler(int) {}
|
||
|
|
void action(int, siginfo_t *, void *) {}
|
||
|
|
|
||
|
|
int main(int argc, char **argv) {
|
||
|
|
char T = argv[1][0];
|
||
|
|
char H = argv[1][1];
|
||
|
|
struct sigaction sa;
|
||
|
|
memset(&sa, 0, sizeof(sa));
|
||
|
|
if (H == 'H') {
|
||
|
|
sa.sa_handler = handler;
|
||
|
|
} else {
|
||
|
|
sa.sa_sigaction = action;
|
||
|
|
sa.sa_flags = SA_SIGINFO;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (T == 'A') {
|
||
|
|
if (H == 'H')
|
||
|
|
__msan_poison(&sa.sa_handler, sizeof(sa.sa_handler));
|
||
|
|
else
|
||
|
|
__msan_poison(&sa.sa_sigaction, sizeof(sa.sa_sigaction));
|
||
|
|
}
|
||
|
|
if (T == 'B')
|
||
|
|
__msan_poison(&sa.sa_flags, sizeof(sa.sa_flags));
|
||
|
|
if (T == 'C')
|
||
|
|
__msan_poison(&sa.sa_mask, sizeof(sa.sa_mask));
|
||
|
|
// CHECK: use-of-uninitialized-value
|
||
|
|
int res = sigaction(SIGUSR1, &sa, nullptr);
|
||
|
|
assert(res == 0);
|
||
|
|
return 0;
|
||
|
|
}
|