Imports Ruby's port to NativeClient (a.k.a NaCl).

Patch by Google Inc. [ruby-core:45073].

* configure.in (RUBY_NACL): New M4 func to configure variables for
  NaCl.
  (RUBY_NACL_CHECK_PEPPER_TYPES): New M4 func to check the old names
  of Pepper interface types.
  (BTESTRUBY): New variable to specify which ruby should be run on
  "make btest". NaCl can run the built binary by sel_ldr, but it need
  rbconfig.rb. So this variable is distinguished from $MINIRUBY.
  
* thread_pthread.c: Disabled some features on NaCl.

* io.c: ditto.

* process.c: ditto.

* signal.c: ditto.

* file.c: ditto.

* missing/flock.c: ditto.

* nacl/pepper_main.c: An example implementation of Pepper application
  that embeds Ruby.

* nacl/example.html: An example of web page that uses the Pepper
  application.

* nacl/nacl-config.rb: Detects variants of NaCl SDK.

* nacl/GNUmakefile.in: Makefile template for NaCl specific build
  process.

* nacl/package.rb: script for packaging a NaCl-Ruby embedding
  application. 

* nacl/reate_nmf.rb: Wrapper script of create_nmf.py

* dln.c (dln_load): Added a hack to call on NaCl.

* util.c (ruby_getcwd): Path to the current directort is not available
  on NaCl.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35672 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 22 insertions, 0 deletions

diff --git a/file.c b/file.c
index 59de83c5fd..bb1ab371f8 100644
--- a/file.c
+++ b/file.c
@@ -60,6 +60,13 @@ int flock(int, int);
 #include <sys/types.h>
 #include <sys/stat.h>
 
+#if defined(__native_client__) && defined(NACL_NEWLIB)
+# include "nacl/utime.h"
+# include "nacl/stat.h"
+# include "nacl/unistd.h"
+#endif
+
+
 #ifdef HAVE_SYS_MKDEV_H
 #include <sys/mkdev.h>
 #endif
@@ -3358,7 +3365,11 @@ realpath_rec(long *prefixlenp, VALUE *resolvedp, const char *unresolved, VALUE l
                 struct stat sbuf;
                 int ret;
                 VALUE testpath2 = rb_str_encode_ospath(testpath);
+#ifdef __native_client__
+                ret = stat(RSTRING_PTR(testpath2), &sbuf);
+#else
                 ret = lstat(RSTRING_PTR(testpath2), &sbuf);
+#endif
                 if (ret == -1) {
                     if (errno == ENOENT) {
                         if (strict || !last || *unresolved_firstsep)
@@ -3403,6 +3414,13 @@ realpath_rec(long *prefixlenp, VALUE *resolvedp, const char *unresolved, VALUE l
     }
 }
 
+#ifdef __native_client__
+VALUE
+rb_realpath_internal(VALUE basedir, VALUE path, int strict)
+{
+    return path;
+}
+#else
 VALUE
 rb_realpath_internal(VALUE basedir, VALUE path, int strict)
 {
@@ -3476,6 +3494,7 @@ rb_realpath_internal(VALUE basedir, VALUE path, int strict)
     OBJ_TAINT(resolved);
     return resolved;
 }
+#endif
 
 /*
  * call-seq:
@@ -5142,6 +5161,9 @@ rb_path_check(const char *path)
 }
 
 #ifndef _WIN32
+#ifdef __native_client__
+__attribute__((noinline))
+#endif
 int
 rb_file_load_ok(const char *path)
 {