1 files changed, 50 insertions, 0 deletions
diff --git a/lib/msan/lit_tests/Linux/syscalls.cc b/lib/msan/lit_tests/Linux/syscalls.cc
index c12eda39189e..ec308bfe30ca 100644
--- a/lib/msan/lit_tests/Linux/syscalls.cc
+++ b/lib/msan/lit_tests/Linux/syscalls.cc
@@ -7,6 +7,10 @@
 #include <stdio.h>
 #include <string.h>
 
+#include <linux/aio_abi.h>
+#include <sys/ptrace.h>
+#include <sys/stat.h>
+
 #include <sanitizer/linux_syscall_hooks.h>
 #include <sanitizer/msan_interface.h>
 
@@ -16,6 +20,7 @@
 int main(int argc, char *argv[]) {
   char buf[1000];
   const int kTen = 10;
+  const int kFortyTwo = 42;
   memset(buf, 0, sizeof(buf));
   __msan_unpoison(buf, sizeof(buf));
   __sanitizer_syscall_pre_recvmsg(0, buf, 0);
@@ -46,5 +51,50 @@ int main(int argc, char *argv[]) {
   __msan_poison(buf, kTen + 1);
   __sanitizer_syscall_post_getdents64(kTen, 0, buf, kTen);
   assert(__msan_test_shadow(buf, sizeof(buf)) == kTen);
+
+  __msan_poison(buf, sizeof(buf));
+  __sanitizer_syscall_post_clock_getres(0, 0, buf);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == sizeof(long) * 2);
+
+  __msan_poison(buf, sizeof(buf));
+  __sanitizer_syscall_post_clock_gettime(0, 0, buf);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == sizeof(long) * 2);
+
+  // Failed syscall does not write to the buffer.
+  __msan_poison(buf, sizeof(buf));
+  __sanitizer_syscall_post_clock_gettime(-1, 0, buf);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == 0);
+
+  __msan_poison(buf, sizeof(buf));
+  __sanitizer_syscall_post_read(5, 42, buf, 10);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == 5);
+
+  __msan_poison(buf, sizeof(buf));
+  __sanitizer_syscall_post_newfstatat(0, 5, "/path/to/file", buf, 0);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == sizeof(struct stat));
+
+  __msan_poison(buf, sizeof(buf));
+  int prio = 0;
+  __sanitizer_syscall_post_mq_timedreceive(kFortyTwo, 5, buf, sizeof(buf), &prio, 0);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == kFortyTwo);
+  assert(__msan_test_shadow(&prio, sizeof(prio)) == -1);
+
+  __msan_poison(buf, sizeof(buf));
+  __sanitizer_syscall_post_ptrace(0, PTRACE_PEEKUSER, kFortyTwo, 0xABCD, buf);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == sizeof(void *));
+
+  __msan_poison(buf, sizeof(buf));
+  struct iocb iocb[2];
+  struct iocb *iocbp[2] = { &iocb[0], &iocb[1] };
+  memset(iocb, 0, sizeof(iocb));
+  iocb[0].aio_lio_opcode = IOCB_CMD_PREAD;
+  iocb[0].aio_buf = (__u64)buf;
+  iocb[0].aio_nbytes = kFortyTwo;
+  iocb[1].aio_lio_opcode = IOCB_CMD_PREAD;
+  iocb[1].aio_buf = (__u64)(&buf[kFortyTwo]);
+  iocb[1].aio_nbytes = kFortyTwo;
+  __sanitizer_syscall_post_io_submit(1, 0, 2, &iocbp);
+  assert(__msan_test_shadow(buf, sizeof(buf)) == kFortyTwo);
+  
   return 0;
 }