diff options
Diffstat (limited to 'lib/msan/lit_tests/errno.cc')
-rw-r--r-- | lib/msan/lit_tests/errno.cc | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/msan/lit_tests/errno.cc b/lib/msan/lit_tests/errno.cc new file mode 100644 index 00000000..af27ad0b --- /dev/null +++ b/lib/msan/lit_tests/errno.cc @@ -0,0 +1,17 @@ +// RUN: %clangxx_msan -m64 -O0 %s -o %t && %t + +#include <assert.h> +#include <errno.h> +#include <stdio.h> +#include <unistd.h> + +int main() +{ + int x; + int *volatile p = &x; + errno = *p; + int res = read(-1, 0, 0); + assert(res == -1); + if (errno) printf("errno %d\n", errno); + return 0; +} |