diff options
Diffstat (limited to 'gcc/cpplib.h')
| -rw-r--r-- | gcc/cpplib.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/cpplib.h b/gcc/cpplib.h index dddbac2a451..c53375d4138 100644 --- a/gcc/cpplib.h +++ b/gcc/cpplib.h @@ -42,6 +42,7 @@ typedef struct cpp_callbacks cpp_callbacks; typedef struct cpp_dir cpp_dir; struct answer; +struct _cpp_file; /* The first three groups, apart from '=', can appear in preprocessor expressions (+= and -= are used to indicate unary + and - resp.). @@ -378,6 +379,14 @@ struct cpp_options unsigned char stdc_0_in_system_headers; }; +/* Callback for header lookup for HEADER, which is the name of a + source file. It is used as a method of last resort to find headers + that are not otherwise found during the normal include processing. + The return value is the malloced name of a header to try and open, + if any, or NULL otherwise. This callback is called only if the + header is otherwise unfound. */ +typedef const char *(*missing_header_cb)(cpp_reader *, const char *header); + /* Call backs to cpplib client. */ struct cpp_callbacks { @@ -399,6 +408,7 @@ struct cpp_callbacks void (*def_pragma) (cpp_reader *, unsigned int); int (*valid_pch) (cpp_reader *, const char *, int); void (*read_pch) (cpp_reader *, const char *, int, const char *); + missing_header_cb missing_header; }; /* Chain of directories to look for include files in. */ @@ -419,6 +429,12 @@ struct cpp_dir platforms. A NULL-terminated array of (from, to) pairs. */ const char **name_map; + /* Routine to construct pathname, given the search path name and the + HEADER we are trying to find, return a constructed pathname to + try and open. If this is NULL, the constructed pathname is as + constructed by append_file_to_dir. */ + char *(*construct) (const char *header, cpp_dir *dir); + /* The C front end uses these to recognize duplicated directories in the search path. */ ino_t ino; @@ -727,6 +743,10 @@ extern bool cpp_included (cpp_reader *, const char *); extern void cpp_make_system_header (cpp_reader *, int, int); extern bool cpp_push_include (cpp_reader *, const char *); extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *); +extern const char *cpp_get_path (struct _cpp_file *); +extern cpp_buffer *cpp_get_buffer (cpp_reader *); +extern struct _cpp_file *cpp_get_file (cpp_buffer *); +extern cpp_buffer *cpp_get_prev (cpp_buffer *); /* In cpppch.c */ struct save_macro_data; |