Revamp the build system.

This achieves several goals:

 * Less reliance on scripts so we have better portability to Windows
   (though we still have a ways to go for proper Windows support).
   Luajit, luarocks, moonscript, and busted are all installed via CMake
   now.
 * Trying to make use of pkg-config to get the correct libraries.  The
   latest libuv is still broken in this regard, but we'll at least be in
   a position to use it.
 * Allow the use of Ninja or make.  The former runs faster in many
   environments, and automatically makes use of parallel builds.

This also allows for system installed dependencies--though not through
the Makefile just yet--and adds support for FreeBSD.

This also make us build libuv and luajit as static libraries only, since
we're only concerned about having static libraries for our bundled
dependencies.

1 files changed, 0 insertions, 465 deletions

diff --git a/third-party/libuv/src/unix/signal.c b/third-party/libuv/src/unix/signal.c
deleted file mode 100644
index 0b7a405c15..0000000000
--- a/third-party/libuv/src/unix/signal.c
+++ /dev/null
@@ -1,465 +0,0 @@
-/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
-
-#include "uv.h"
-#include "internal.h"
-
-#include <assert.h>
-#include <errno.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-
-typedef struct {
-  uv_signal_t* handle;
-  int signum;
-} uv__signal_msg_t;
-
-RB_HEAD(uv__signal_tree_s, uv_signal_s);
-
-
-static int uv__signal_unlock(void);
-static void uv__signal_event(uv_loop_t* loop, uv__io_t* w, unsigned int events);
-static int uv__signal_compare(uv_signal_t* w1, uv_signal_t* w2);
-static void uv__signal_stop(uv_signal_t* handle);
-
-
-static pthread_once_t uv__signal_global_init_guard = PTHREAD_ONCE_INIT;
-static struct uv__signal_tree_s uv__signal_tree =
-    RB_INITIALIZER(uv__signal_tree);
-static int uv__signal_lock_pipefd[2];
-
-
-RB_GENERATE_STATIC(uv__signal_tree_s,
-                   uv_signal_s, tree_entry,
-                   uv__signal_compare)
-
-
-static void uv__signal_global_init(void) {
-  if (uv__make_pipe(uv__signal_lock_pipefd, 0))
-    abort();
-
-  if (uv__signal_unlock())
-    abort();
-}
-
-
-void uv__signal_global_once_init(void) {
-  pthread_once(&uv__signal_global_init_guard, uv__signal_global_init);
-}
-
-
-
-static int uv__signal_lock(void) {
-  int r;
-  char data;
-
-  do {
-    r = read(uv__signal_lock_pipefd[0], &data, sizeof data);
-  } while (r < 0 && errno == EINTR);
-
-  return (r < 0) ? -1 : 0;
-}
-
-
-static int uv__signal_unlock(void) {
-  int r;
-  char data = 42;
-
-  do {
-    r = write(uv__signal_lock_pipefd[1], &data, sizeof data);
-  } while (r < 0 && errno == EINTR);
-
-  return (r < 0) ? -1 : 0;
-}
-
-
-static void uv__signal_block_and_lock(sigset_t* saved_sigmask) {
-  sigset_t new_mask;
-
-  if (sigfillset(&new_mask))
-    abort();
-
-  if (pthread_sigmask(SIG_SETMASK, &new_mask, saved_sigmask))
-    abort();
-
-  if (uv__signal_lock())
-    abort();
-}
-
-
-static void uv__signal_unlock_and_unblock(sigset_t* saved_sigmask) {
-  if (uv__signal_unlock())
-    abort();
-
-  if (pthread_sigmask(SIG_SETMASK, saved_sigmask, NULL))
-    abort();
-}
-
-
-static uv_signal_t* uv__signal_first_handle(int signum) {
-  /* This function must be called with the signal lock held. */
-  uv_signal_t lookup;
-  uv_signal_t* handle;
-
-  lookup.signum = signum;
-  lookup.loop = NULL;
-
-  handle = RB_NFIND(uv__signal_tree_s, &uv__signal_tree, &lookup);
-
-  if (handle != NULL && handle->signum == signum)
-    return handle;
-
-  return NULL;
-}
-
-
-static void uv__signal_handler(int signum) {
-  uv__signal_msg_t msg;
-  uv_signal_t* handle;
-  int saved_errno;
-
-  saved_errno = errno;
-  memset(&msg, 0, sizeof msg);
-
-  if (uv__signal_lock()) {
-    errno = saved_errno;
-    return;
-  }
-
-  for (handle = uv__signal_first_handle(signum);
-       handle != NULL && handle->signum == signum;
-       handle = RB_NEXT(uv__signal_tree_s, &uv__signal_tree, handle)) {
-    int r;
-
-    msg.signum = signum;
-    msg.handle = handle;
-
-    /* write() should be atomic for small data chunks, so the entire message
-     * should be written at once. In theory the pipe could become full, in
-     * which case the user is out of luck.
-     */
-    do {
-      r = write(handle->loop->signal_pipefd[1], &msg, sizeof msg);
-    } while (r == -1 && errno == EINTR);
-
-    assert(r == sizeof msg ||
-           (r == -1 && (errno == EAGAIN || errno == EWOULDBLOCK)));
-
-    if (r != -1)
-      handle->caught_signals++;
-  }
-
-  uv__signal_unlock();
-  errno = saved_errno;
-}
-
-
-static int uv__signal_register_handler(int signum) {
-  /* When this function is called, the signal lock must be held. */
-  struct sigaction sa;
-
-  /* XXX use a separate signal stack? */
-  memset(&sa, 0, sizeof(sa));
-  if (sigfillset(&sa.sa_mask))
-    abort();
-  sa.sa_handler = uv__signal_handler;
-
-  /* XXX save old action so we can restore it later on? */
-  if (sigaction(signum, &sa, NULL))
-    return -errno;
-
-  return 0;
-}
-
-
-static void uv__signal_unregister_handler(int signum) {
-  /* When this function is called, the signal lock must be held. */
-  struct sigaction sa;
-
-  memset(&sa, 0, sizeof(sa));
-  sa.sa_handler = SIG_DFL;
-
-  /* sigaction can only fail with EINVAL or EFAULT; an attempt to deregister a
-   * signal implies that it was successfully registered earlier, so EINVAL
-   * should never happen.
-   */
-  if (sigaction(signum, &sa, NULL))
-    abort();
-}
-
-
-static int uv__signal_loop_once_init(uv_loop_t* loop) {
-  int err;
-
-  /* Return if already initialized. */
-  if (loop->signal_pipefd[0] != -1)
-    return 0;
-
-  err = uv__make_pipe(loop->signal_pipefd, UV__F_NONBLOCK);
-  if (err)
-    return err;
-
-  uv__io_init(&loop->signal_io_watcher,
-              uv__signal_event,
-              loop->signal_pipefd[0]);
-  uv__io_start(loop, &loop->signal_io_watcher, UV__POLLIN);
-
-  return 0;
-}
-
-
-void uv__signal_loop_cleanup(uv_loop_t* loop) {
-  QUEUE* q;
-
-  /* Stop all the signal watchers that are still attached to this loop. This
-   * ensures that the (shared) signal tree doesn't contain any invalid entries
-   * entries, and that signal handlers are removed when appropriate.
-   */
-  QUEUE_FOREACH(q, &loop->handle_queue) {
-    uv_handle_t* handle = QUEUE_DATA(q, uv_handle_t, handle_queue);
-
-    if (handle->type == UV_SIGNAL)
-      uv__signal_stop((uv_signal_t*) handle);
-  }
-
-  if (loop->signal_pipefd[0] != -1) {
-    uv__close(loop->signal_pipefd[0]);
-    loop->signal_pipefd[0] = -1;
-  }
-
-  if (loop->signal_pipefd[1] != -1) {
-    uv__close(loop->signal_pipefd[1]);
-    loop->signal_pipefd[1] = -1;
-  }
-}
-
-
-int uv_signal_init(uv_loop_t* loop, uv_signal_t* handle) {
-  int err;
-
-  err = uv__signal_loop_once_init(loop);
-  if (err)
-    return err;
-
-  uv__handle_init(loop, (uv_handle_t*) handle, UV_SIGNAL);
-  handle->signum = 0;
-  handle->caught_signals = 0;
-  handle->dispatched_signals = 0;
-
-  return 0;
-}
-
-
-void uv__signal_close(uv_signal_t* handle) {
-
-  uv__signal_stop(handle);
-
-  /* If there are any caught signals "trapped" in the signal pipe, we can't
-   * call the close callback yet. Otherwise, add the handle to the finish_close
-   * queue.
-   */
-  if (handle->caught_signals == handle->dispatched_signals) {
-    uv__make_close_pending((uv_handle_t*) handle);
-  }
-}
-
-
-int uv_signal_start(uv_signal_t* handle, uv_signal_cb signal_cb, int signum) {
-  sigset_t saved_sigmask;
-  int err;
-
-  assert(!(handle->flags & (UV_CLOSING | UV_CLOSED)));
-
-  /* If the user supplies signum == 0, then return an error already. If the
-   * signum is otherwise invalid then uv__signal_register will find out
-   * eventually.
-   */
-  if (signum == 0)
-    return -EINVAL;
-
-  /* Short circuit: if the signal watcher is already watching {signum} don't
-   * go through the process of deregistering and registering the handler.
-   * Additionally, this avoids pending signals getting lost in the small time
-   * time frame that handle->signum == 0.
-   */
-  if (signum == handle->signum) {
-    handle->signal_cb = signal_cb;
-    return 0;
-  }
-
-  /* If the signal handler was already active, stop it first. */
-  if (handle->signum != 0) {
-    uv__signal_stop(handle);
-  }
-
-  uv__signal_block_and_lock(&saved_sigmask);
-
-  /* If at this point there are no active signal watchers for this signum (in
-   * any of the loops), it's time to try and register a handler for it here.
-   */
-  if (uv__signal_first_handle(signum) == NULL) {
-    err = uv__signal_register_handler(signum);
-    if (err) {
-      /* Registering the signal handler failed. Must be an invalid signal. */
-      uv__signal_unlock_and_unblock(&saved_sigmask);
-      return err;
-    }
-  }
-
-  handle->signum = signum;
-  RB_INSERT(uv__signal_tree_s, &uv__signal_tree, handle);
-
-  uv__signal_unlock_and_unblock(&saved_sigmask);
-
-  handle->signal_cb = signal_cb;
-  uv__handle_start(handle);
-
-  return 0;
-}
-
-
-static void uv__signal_event(uv_loop_t* loop,
-                             uv__io_t* w,
-                             unsigned int events) {
-  uv__signal_msg_t* msg;
-  uv_signal_t* handle;
-  char buf[sizeof(uv__signal_msg_t) * 32];
-  size_t bytes, end, i;
-  int r;
-
-  bytes = 0;
-  end = 0;
-
-  do {
-    r = read(loop->signal_pipefd[0], buf + bytes, sizeof(buf) - bytes);
-
-    if (r == -1 && errno == EINTR)
-      continue;
-
-    if (r == -1 && (errno == EAGAIN || errno == EWOULDBLOCK)) {
-      /* If there are bytes in the buffer already (which really is extremely
-       * unlikely if possible at all) we can't exit the function here. We'll
-       * spin until more bytes are read instead.
-       */
-      if (bytes > 0)
-        continue;
-
-      /* Otherwise, there was nothing there. */
-      return;
-    }
-
-    /* Other errors really should never happen. */
-    if (r == -1)
-      abort();
-
-    bytes += r;
-
-    /* `end` is rounded down to a multiple of sizeof(uv__signal_msg_t). */
-    end = (bytes / sizeof(uv__signal_msg_t)) * sizeof(uv__signal_msg_t);
-
-    for (i = 0; i < end; i += sizeof(uv__signal_msg_t)) {
-      msg = (uv__signal_msg_t*) (buf + i);
-      handle = msg->handle;
-
-      if (msg->signum == handle->signum) {
-        assert(!(handle->flags & UV_CLOSING));
-        handle->signal_cb(handle, handle->signum);
-      }
-
-      handle->dispatched_signals++;
-
-      /* If uv_close was called while there were caught signals that were not
-       * yet dispatched, the uv__finish_close was deferred. Make close pending
-       * now if this has happened.
-       */
-      if ((handle->flags & UV_CLOSING) &&
-          (handle->caught_signals == handle->dispatched_signals)) {
-        uv__make_close_pending((uv_handle_t*) handle);
-      }
-    }
-
-    bytes -= end;
-
-    /* If there are any "partial" messages left, move them to the start of the
-     * the buffer, and spin. This should not happen.
-     */
-    if (bytes) {
-      memmove(buf, buf + end, bytes);
-      continue;
-    }
-  } while (end == sizeof buf);
-}
-
-
-static int uv__signal_compare(uv_signal_t* w1, uv_signal_t* w2) {
-  /* Compare signums first so all watchers with the same signnum end up
-   * adjacent.
-   */
-  if (w1->signum < w2->signum) return -1;
-  if (w1->signum > w2->signum) return 1;
-
-  /* Sort by loop pointer, so we can easily look up the first item after
-   * { .signum = x, .loop = NULL }.
-   */
-  if (w1->loop < w2->loop) return -1;
-  if (w1->loop > w2->loop) return 1;
-
-  if (w1 < w2) return -1;
-  if (w1 > w2) return 1;
-
-  return 0;
-}
-
-
-int uv_signal_stop(uv_signal_t* handle) {
-  assert(!(handle->flags & (UV_CLOSING | UV_CLOSED)));
-  uv__signal_stop(handle);
-  return 0;
-}
-
-
-static void uv__signal_stop(uv_signal_t* handle) {
-  uv_signal_t* removed_handle;
-  sigset_t saved_sigmask;
-
-  /* If the watcher wasn't started, this is a no-op. */
-  if (handle->signum == 0)
-    return;
-
-  uv__signal_block_and_lock(&saved_sigmask);
-
-  removed_handle = RB_REMOVE(uv__signal_tree_s, &uv__signal_tree, handle);
-  assert(removed_handle == handle);
-  (void) removed_handle;
-
-  /* Check if there are other active signal watchers observing this signal. If
-   * not, unregister the signal handler.
-   */
-  if (uv__signal_first_handle(handle->signum) == NULL)
-    uv__signal_unregister_handler(handle->signum);
-
-  uv__signal_unlock_and_unblock(&saved_sigmask);
-
-  handle->signum = 0;
-  uv__handle_stop(handle);
-}