diff options
| -rw-r--r-- | tools/include/nolibc/unistd.h | 15 | ||||
| -rw-r--r-- | tools/testing/selftests/nolibc/nolibc-test.c | 2 |
2 files changed, 17 insertions, 0 deletions
diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index ac7d53d986cd..0e832e10a0b2 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -56,6 +56,21 @@ int tcsetpgrp(int fd, pid_t pid) return ioctl(fd, TIOCSPGRP, &pid); } +#define _syscall(N, ...) \ +({ \ + long _ret = my_syscall##N(__VA_ARGS__); \ + if (_ret < 0) { \ + SET_ERRNO(-_ret); \ + _ret = -1; \ + } \ + _ret; \ +}) + +#define _syscall_narg(...) __syscall_narg(__VA_ARGS__, 6, 5, 4, 3, 2, 1, 0) +#define __syscall_narg(_0, _1, _2, _3, _4, _5, _6, N, ...) N +#define _syscall_n(N, ...) _syscall(N, __VA_ARGS__) +#define syscall(...) _syscall_n(_syscall_narg(__VA_ARGS__), ##__VA_ARGS__) + /* make sure to include all global symbols */ #include "nolibc.h" diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index f042a6436b6b..54bf91847af3 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -588,6 +588,8 @@ int run_syscall(int min, int max) CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break; CASE_TEST(write_badf); EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break; CASE_TEST(write_zero); EXPECT_SYSZR(1, write(1, &tmp, 0)); break; + CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break; + CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_fstat, 0, NULL), -1, EFAULT); break; case __LINE__: return ret; /* must be last */ /* note: do not set any defaults so as to permit holes above */ |