Port USE_STACK_LISP_OBJECTS fix to Clang

[gnu-emacs] / src / fileio.c

diff --git a/src/fileio.c b/src/fileio.c
index b82b7d360b52f4498937d92f3665454a60912a4b..0372f46cd5584d763c03d9b6515c04d75972c61b 100644 (file)
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -1,6 +1,6 @@
 /* File IO for GNU Emacs.
 
-Copyright (C) 1985-1988, 1993-2015 Free Software Foundation, Inc.
+Copyright (C) 1985-1988, 1993-2016 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -36,14 +36,14 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <selinux/context.h>
 #endif
 
-#ifdef HAVE_ACL_SET_FILE
+#if USE_ACL && defined HAVE_ACL_SET_FILE
 #include <sys/acl.h>
 #endif
 
 #include <c-ctype.h>
 
 #include "lisp.h"
-#include "intervals.h"
+#include "composite.h"
 #include "character.h"
 #include "buffer.h"
 #include "coding.h"
@@ -51,7 +51,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "blockinput.h"
 #include "region-cache.h"
 #include "frame.h"
-#include "dispextern.h"
 
 #ifdef WINDOWSNT
 #define NOMINMAX 1
@@ -451,7 +450,7 @@ DEFUN ("unhandled-file-name-directory", Funhandled_file_name_directory,
 A `directly usable' directory name is one that may be used without the
 intervention of any file handler.
 If FILENAME is a directly usable file itself, return
-(file-name-directory FILENAME).
+(file-name-as-directory FILENAME).
 If FILENAME refers to a file which is not accessible from a local process,
 then this should return nil.
 The `call-process' and `start-process' functions use this function to
@@ -470,7 +469,7 @@ get a current directory to run processes in.  */)
       return STRINGP (handled_name) ? handled_name : Qnil;
     }
 
-  return Ffile_name_directory (filename);
+  return Ffile_name_as_directory (filename);
 }
 
 /* Maximum number of bytes that DST will be longer than SRC
@@ -2938,16 +2937,17 @@ Return nil if file does not exist or is not accessible, or if Emacs
 was unable to determine the ACL entries.  */)
   (Lisp_Object filename)
 {
+#if USE_ACL
   Lisp_Object absname;
   Lisp_Object handler;
-#ifdef HAVE_ACL_SET_FILE
+# ifdef HAVE_ACL_SET_FILE
   acl_t acl;
   Lisp_Object acl_string;
   char *str;
-# ifndef HAVE_ACL_TYPE_EXTENDED
+#  ifndef HAVE_ACL_TYPE_EXTENDED
   acl_type_t ACL_TYPE_EXTENDED = ACL_TYPE_ACCESS;
+#  endif
 # endif
-#endif
 
   absname = expand_and_dir_to_file (filename,
                                    BVAR (current_buffer, directory));
@@ -2958,7 +2958,7 @@ was unable to determine the ACL entries.  */)
   if (!NILP (handler))
     return call2 (handler, Qfile_acl, absname);
 
-#ifdef HAVE_ACL_SET_FILE
+# ifdef HAVE_ACL_SET_FILE
   absname = ENCODE_FILE (absname);
 
   acl = acl_get_file (SSDATA (absname), ACL_TYPE_EXTENDED);
@@ -2977,6 +2977,7 @@ was unable to determine the ACL entries.  */)
   acl_free (acl);
 
   return acl_string;
+# endif
 #endif
 
   return Qnil;
@@ -2994,13 +2995,14 @@ Setting ACL for local files requires Emacs to be built with ACL
 support.  */)
   (Lisp_Object filename, Lisp_Object acl_string)
 {
+#if USE_ACL
   Lisp_Object absname;
   Lisp_Object handler;
-#ifdef HAVE_ACL_SET_FILE
+# ifdef HAVE_ACL_SET_FILE
   Lisp_Object encoded_absname;
   acl_t acl;
   bool fail;
-#endif
+# endif
 
   absname = Fexpand_file_name (filename, BVAR (current_buffer, directory));
 
@@ -3010,7 +3012,7 @@ support.  */)
   if (!NILP (handler))
     return call3 (handler, Qset_file_acl, absname, acl_string);
 
-#ifdef HAVE_ACL_SET_FILE
+# ifdef HAVE_ACL_SET_FILE
   if (STRINGP (acl_string))
     {
       acl = acl_from_text (SSDATA (acl_string));
@@ -3031,6 +3033,7 @@ support.  */)
       acl_free (acl);
       return fail ? Qnil : Qt;
     }
+# endif
 #endif
 
   return Qnil;
@@ -3470,7 +3473,11 @@ by calling `format-decode', which see.  */)
       mtime = time_error_value (save_errno);
       st.st_size = -1;
       if (!NILP (Vcoding_system_for_read))
-       Fset (Qbuffer_file_coding_system, Vcoding_system_for_read);
+       {
+         /* Don't let invalid values into buffer-file-coding-system.  */
+         CHECK_CODING_SYSTEM (Vcoding_system_for_read);
+         Fset (Qbuffer_file_coding_system, Vcoding_system_for_read);
+       }
       goto notfound;
     }
 
@@ -4260,9 +4267,14 @@ by calling `format-decode', which see.  */)
       if (CODING_FOR_UNIBYTE (&coding)
          /* Can't do this if part of the buffer might be preserved.  */
          && NILP (replace))
-       /* Visiting a file with these coding system makes the buffer
-          unibyte.  */
-       bset_enable_multibyte_characters (current_buffer, Qnil);
+       {
+         /* Visiting a file with these coding system makes the buffer
+            unibyte.  */
+         if (inserted > 0)
+           bset_enable_multibyte_characters (current_buffer, Qnil);
+         else
+           Fset_buffer_multibyte (Qnil);
+       }
     }
 
   coding.dst_multibyte = ! NILP (BVAR (current_buffer, enable_multibyte_characters));
@@ -4569,7 +4581,7 @@ choose_write_coding_system (Lisp_Object start, Lisp_Object end, Lisp_Object file
       if (NILP (val))
        {
          /* If we still have not decided a coding system, use the
-            default value of buffer-file-coding-system.  */
+            current buffer's value of buffer-file-coding-system.  */
          val = BVAR (current_buffer, buffer_file_coding_system);
          using_default_coding = 1;
        }
@@ -4587,9 +4599,16 @@ choose_write_coding_system (Lisp_Object start, Lisp_Object end, Lisp_Object file
 
       if (!force_raw_text
          && !NILP (Ffboundp (Vselect_safe_coding_system_function)))
-       /* Confirm that VAL can surely encode the current region.  */
-       val = call5 (Vselect_safe_coding_system_function,
-                    start, end, val, Qnil, filename);
+       {
+         /* Confirm that VAL can surely encode the current region.  */
+         val = call5 (Vselect_safe_coding_system_function,
+                      start, end, val, Qnil, filename);
+         /* As the function specified by select-safe-coding-system-function
+            is out of our control, make sure we are not fed by bogus
+            values.  */
+         if (!NILP (val))
+           CHECK_CODING_SYSTEM (val);
+       }
 
       /* If the decided coding-system doesn't specify end-of-line
         format, we use that of