static struct search_path * remove_dup_dirs PARAMS ((cpp_reader *,
struct search_path *));
static void merge_include_chains PARAMS ((cpp_reader *));
-static void do_includes PARAMS ((cpp_reader *,
- struct pending_option *,
- int));
+static bool push_include PARAMS ((cpp_reader *,
+ struct pending_option *));
+static void free_chain PARAMS ((struct pending_option *));
static void set_lang PARAMS ((cpp_reader *, enum c_lang));
static void init_dependency_output PARAMS ((cpp_reader *));
static void init_standard_includes PARAMS ((cpp_reader *));
/* Indicate date and time not yet calculated. */
pfile->date.type = CPP_EOF;
+ /* Create a token buffer for the lexer. */
+ _cpp_init_tokenrun (&pfile->base_run, 250);
+ pfile->cur_run = &pfile->base_run;
+ pfile->cur_token = pfile->base_run.base;
+
/* Initialise the base context. */
pfile->context = &pfile->base_context;
pfile->base_context.macro = 0;
_cpp_destroy_hashtable (pfile);
_cpp_cleanup_includes (pfile);
- _cpp_free_lookaheads (pfile);
_cpp_free_pool (&pfile->ident_pool);
_cpp_free_pool (&pfile->macro_pool);
}
}
-/* Handles -imacro and -include from the command line. */
-static void
-do_includes (pfile, p, scan)
+/* Pushes a -imacro and -include file given on the command line onto
+ the buffer stack. Returns non-zero if successful. */
+static bool
+push_include (pfile, p)
cpp_reader *pfile;
struct pending_option *p;
- int scan;
{
- while (p)
- {
- struct pending_option *q;
+ cpp_token header;
- /* Don't handle if -fpreprocessed. Later: maybe update this to
- use the #include "" search path if cpp_read_file fails. */
- if (CPP_OPTION (pfile, preprocessed))
- cpp_error (pfile, "-include and -imacros cannot be used with -fpreprocessed");
- else
- {
- cpp_token header;
- header.type = CPP_STRING;
- header.val.str.text = (const unsigned char *) p->arg;
- header.val.str.len = strlen (p->arg);
- if (_cpp_execute_include (pfile, &header, IT_CMDLINE) && scan)
- {
- pfile->buffer->return_at_eof = true;
- cpp_scan_nooutput (pfile);
- }
- }
- q = p->next;
- free (p);
- p = q;
+ /* Later: maybe update this to use the #include "" search path
+ if cpp_read_file fails. */
+ header.type = CPP_STRING;
+ header.val.str.text = (const unsigned char *) p->arg;
+ header.val.str.len = strlen (p->arg);
+ /* Make the command line directive take up a line. */
+ pfile->lexer_pos.line = pfile->lexer_pos.output_line = ++pfile->line;
+
+ return _cpp_execute_include (pfile, &header, IT_CMDLINE);
+}
+
+/* Frees a pending_option chain. */
+static void
+free_chain (head)
+ struct pending_option *head;
+{
+ struct pending_option *next;
+
+ while (head)
+ {
+ next = head->next;
+ free (head);
+ head = next;
}
}
cpp_reader *pfile;
const char *fname;
{
- struct pending_option *p, *q;
-
/* Set up the include search path now. */
if (! CPP_OPTION (pfile, no_standard_includes))
init_standard_includes (pfile);
if (!_cpp_read_file (pfile, fname))
return 0;
- /* FIXME: we want to set up linemaps with _("<builtin>") and
- _("<command line>") somewhere round here. Harder than it looks. */
+ /* Set this after cpp_post_options so the client can change the
+ option if it wishes, and after stacking the main file so we don't
+ trace the main file. */
+ pfile->line_maps.trace_includes = CPP_OPTION (pfile, print_include_names);
- /* If already preprocessed, don't install __LINE__, etc., and ignore
- command line definitions and assertions. Handle -U's, -D's and
- -A's in the order they were seen. */
+ /* Install builtins and process command line macros etc. in the order
+ they appeared, but only if not already preprocessed. */
if (! CPP_OPTION (pfile, preprocessed))
- init_builtins (pfile);
-
- p = CPP_OPTION (pfile, pending)->directive_head;
- while (p)
{
- if (! CPP_OPTION (pfile, preprocessed))
+ struct pending_option *p;
+
+ _cpp_do_file_change (pfile, LC_RENAME, _("<builtin>"), 1, 0);
+ init_builtins (pfile);
+ _cpp_do_file_change (pfile, LC_RENAME, _("<command line>"), 1, 0);
+ for (p = CPP_OPTION (pfile, pending)->directive_head; p; p = p->next)
(*p->handler) (pfile, p->arg);
- q = p->next;
- free (p);
- p = q;
+
+ /* Scan -imacros files after command line defines, but before
+ files given with -include. */
+ while ((p = CPP_OPTION (pfile, pending)->imacros_head) != NULL)
+ {
+ if (push_include (pfile, p))
+ {
+ pfile->buffer->return_at_eof = true;
+ cpp_scan_nooutput (pfile);
+ }
+ CPP_OPTION (pfile, pending)->imacros_head = p->next;
+ free (p);
+ }
}
- /* Hopefully a short-term kludge. We stacked the main file at line
- zero. The intervening macro definitions have messed up line
- numbering, so we need to restore it. */
- pfile->lexer_pos.output_line = pfile->line = 0;
+ free_chain (CPP_OPTION (pfile, pending)->directive_head);
+ _cpp_push_next_buffer (pfile);
- /* The -imacros files can be scanned now, but the -include files
- have to be pushed onto the buffer stack and processed later,
- otherwise cppmain.c won't see the tokens. include_head was built
- up as a stack, and popping this stack onto the buffer stack means
- we preserve the order of the command line. */
- do_includes (pfile, CPP_OPTION (pfile, pending)->imacros_head, 1);
- do_includes (pfile, CPP_OPTION (pfile, pending)->include_head, 0);
+ return 1;
+}
- free (CPP_OPTION (pfile, pending));
- CPP_OPTION (pfile, pending) = NULL;
+/* Called to push the next buffer on the stack given by -include. If
+ there are none, free the pending structure and restore the line map
+ for the main file. */
+bool
+_cpp_push_next_buffer (pfile)
+ cpp_reader *pfile;
+{
+ bool pushed = false;
+
+ /* This is't pretty; we'd rather not be relying on this as a boolean
+ for reverting the line map. Further, we only free the chains in
+ this conditional, so an early call to cpp_finish / cpp_destroy
+ will leak that memory. */
+ if (CPP_OPTION (pfile, pending)
+ && CPP_OPTION (pfile, pending)->imacros_head == NULL)
+ {
+ while (!pushed)
+ {
+ struct pending_option *p = CPP_OPTION (pfile, pending)->include_head;
- return 1;
+ if (p == NULL)
+ break;
+ if (! CPP_OPTION (pfile, preprocessed))
+ pushed = push_include (pfile, p);
+ CPP_OPTION (pfile, pending)->include_head = p->next;
+ free (p);
+ }
+
+ if (!pushed)
+ {
+ free (CPP_OPTION (pfile, pending));
+ CPP_OPTION (pfile, pending) = NULL;
+
+ /* Restore the line map for the main file. */
+ if (! CPP_OPTION (pfile, preprocessed))
+ _cpp_do_file_change (pfile, LC_RENAME,
+ pfile->line_maps.maps[0].to_file, 1, 0);
+ }
+ }
+
+ return pushed;
}
/* Use mkdeps.c to output dependency information. */
{
/* Stream on which to print the dependency information. */
FILE *deps_stream = 0;
- const char *deps_mode = CPP_OPTION (pfile, print_deps_append) ? "a" : "w";
+ const char *const deps_mode =
+ CPP_OPTION (pfile, print_deps_append) ? "a" : "w";
if (CPP_OPTION (pfile, deps_file) == 0)
deps_stream = stdout;
if (arg[1] == '\0')
{
- struct pending_option *o1, *o2;
-
- o1 = pend->directive_head;
- while (o1)
- {
- o2 = o1->next;
- free (o1);
- o1 = o2;
- }
+ free_chain (pend->directive_head);
pend->directive_head = NULL;
pend->directive_tail = NULL;
}
append_include_chain (pfile, xstrdup (arg), SYSTEM, 0);
break;
case OPT_include:
- {
- struct pending_option *o = (struct pending_option *)
- xmalloc (sizeof (struct pending_option));
- o->arg = arg;
-
- /* This list has to be built in reverse order so that
- when cpp_start_read pushes all the -include files onto
- the buffer stack, they will be scanned in forward order. */
- o->next = pend->include_head;
- pend->include_head = o;
- }
- break;
case OPT_imacros:
{
struct pending_option *o = (struct pending_option *)
o->arg = arg;
o->next = NULL;
- APPEND (pend, imacros, o);
+ if (opt_code == OPT_include)
+ APPEND (pend, include, o);
+ else
+ APPEND (pend, imacros, o);
}
break;
case OPT_iwithprefix:
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