diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/test_overflow.c | 48 |
1 files changed, 22 insertions, 26 deletions
diff --git a/lib/test_overflow.c b/lib/test_overflow.c index af01e46500be..fa87e283b149 100644 --- a/lib/test_overflow.c +++ b/lib/test_overflow.c @@ -211,35 +211,31 @@ DEFINE_TEST_ARRAY(s64) = { {0, -S64_MAX, -S64_MAX, S64_MAX, 0, false, false, false}, }; +#define check_one_op(t, fmt, op, sym, a, b, r, of) do { \ + t _r; \ + bool _of; \ + \ + _of = check_ ## op ## _overflow(a, b, &_r); \ + if (_of != of) { \ + pr_warn("expected "fmt" "sym" "fmt \ + " to%s overflow (type %s)\n", \ + a, b, of ? "" : " not", #t); \ + } \ + if (_r != r) { \ + pr_warn("expected "fmt" "sym" "fmt" == " \ + fmt", got "fmt" (type %s)\n", \ + a, b, r, _r, #t); \ + } \ +} while (0) + #define DEFINE_TEST_FUNC(t, fmt) \ static void __init do_test_ ## t(const struct test_ ## t *p) \ { \ - t r; \ - bool of; \ - \ - of = check_add_overflow(p->a, p->b, &r); \ - if (of != p->s_of) \ - pr_warn("expected "fmt" + "fmt" to%s overflow (type %s)\n", \ - p->a, p->b, p->s_of ? "" : " not", #t); \ - if (r != p->sum) \ - pr_warn("expected "fmt" + "fmt" == "fmt", got "fmt" (type %s)\n", \ - p->a, p->b, p->sum, r, #t); \ - \ - of = check_sub_overflow(p->a, p->b, &r); \ - if (of != p->d_of) \ - pr_warn("expected "fmt" - "fmt" to%s overflow (type %s)\n", \ - p->a, p->b, p->s_of ? "" : " not", #t); \ - if (r != p->diff) \ - pr_warn("expected "fmt" - "fmt" == "fmt", got "fmt" (type %s)\n", \ - p->a, p->b, p->diff, r, #t); \ - \ - of = check_mul_overflow(p->a, p->b, &r); \ - if (of != p->p_of) \ - pr_warn("expected "fmt" * "fmt" to%s overflow (type %s)\n", \ - p->a, p->b, p->p_of ? "" : " not", #t); \ - if (r != p->prod) \ - pr_warn("expected "fmt" * "fmt" == "fmt", got "fmt" (type %s)\n", \ - p->a, p->b, p->prod, r, #t); \ + check_one_op(t, fmt, add, "+", p->a, p->b, p->sum, p->s_of); \ + check_one_op(t, fmt, add, "+", p->b, p->a, p->sum, p->s_of); \ + check_one_op(t, fmt, sub, "-", p->a, p->b, p->diff, p->d_of); \ + check_one_op(t, fmt, mul, "*", p->a, p->b, p->prod, p->p_of); \ + check_one_op(t, fmt, mul, "*", p->b, p->a, p->prod, p->p_of); \ } \ \ static void __init test_ ## t ## _overflow(void) { \ |