c-lex.c: Move main_input_filename handling to FC_ENTER.

        * c-lex.c: Move main_input_filename handling to FC_ENTER. Clean up.
        * cpperror.c (print_containing_files): Get right line number.
        (print_location): Output column of 1 if 0.
        * cppfiles.c (stack_include_file): cpp_push_buffer handles
        the callback.
        * cpphash.h (_cpp_do_file_change): No longer external.
        * cpplib.c (do_file_change): Now local to cpplib.c.
        (do_line): Fake a buffer stack for preprocessed files.
        (cpp_push_buffer): Create a file_change callback.  Handle faked
        buffers.
        (cpp_pop_buffer): Similarly.
        * cpplib.h: BUF_FAKE: New buffer type.
        * cppmain.c: Update to handle correct file renaming where a
        #line is the first line of the main file, and produce only
        the renamed file, not the original file, as output.

From-SVN: r38319

1 files changed, 4 insertions, 3 deletions

diff --git a/gcc/cpplib.h b/gcc/cpplib.h
index 552631b..4c4b7e3 100644
--- a/gcc/cpplib.h
+++ b/gcc/cpplib.h
@@ -633,9 +633,10 @@ struct cpp_reader
 /* Name under which this program was invoked.  */
 extern const char *progname;
 
-/* Where does this buffer come from?  A file, a builtin macro, a
-   command-line option, or a _Pragma operator.  */
-enum cpp_buffer_type {BUF_FILE, BUF_BUILTIN, BUF_CL_OPTION, BUF_PRAGMA};
+/* Where does this buffer come from?  A faked include, a source file,
+   a builtin macro, a command-line option, or a _Pragma operator.  */
+enum cpp_buffer_type {BUF_FAKE, BUF_FILE, BUF_BUILTIN,
+		      BUF_CL_OPTION, BUF_PRAGMA};
 
 /* The structure of a node in the hash table.  The hash table has
    entries for all identifiers: either macros defined by #define