static const char *predicable_true;
static const char *predicable_false;
+static char *base_dir = NULL;
+
/* We initially queue all patterns, process the define_insn and
define_cond_exec patterns, then return them one at a time. */
static struct queue_elem **other_tail = &other_queue;
static void queue_pattern PARAMS ((rtx, struct queue_elem ***, int));
+
+/* Current maximum length of directory names in the search path
+ for include files. (Altered as we get more of them.) */
+
+size_t max_include_len;
+
+struct file_name_list
+ {
+ struct file_name_list *next;
+ const char *fname;
+ };
+
+struct file_name_list *include = 0; /* First dir to search */
+ /* First dir to search for <file> */
+struct file_name_list *first_bracket_include = 0;
+struct file_name_list *last_include = 0; /* Last in chain */
+
static void remove_constraints PARAMS ((rtx));
static void process_rtx PARAMS ((rtx, int));
int, int));
static void process_one_cond_exec PARAMS ((struct queue_elem *));
static void process_define_cond_exec PARAMS ((void));
+static int process_include PARAMS ((rtx, int));
+static char *save_string PARAMS ((const char *, int));
+static int init_include_reader PARAMS ((FILE *));
\f
void
message_with_line VPARAMS ((int lineno, const char *msg, ...))
}
}
+/* The entry point for initializing the reader. */
+
+static int
+init_include_reader (inf)
+ FILE *inf;
+{
+ int c;
+
+ errors = 0;
+
+ /* Read the entire file. */
+ while (1)
+ {
+ rtx desc;
+ int lineno;
+
+ c = read_skip_spaces (inf);
+ if (c == EOF)
+ break;
+
+ ungetc (c, inf);
+ lineno = read_rtx_lineno;
+ desc = read_rtx (inf);
+ process_rtx (desc, lineno);
+ }
+ fclose (inf);
+
+ /* Process define_cond_exec patterns. */
+ if (define_cond_exec_queue != NULL)
+ process_define_cond_exec ();
+
+ return errors ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE;
+}
+
+/* Process an include file assuming that it lives in gcc/config/{target}/
+ if the include looks line (include "file" ) */
+static int
+process_include (desc, lineno)
+ rtx desc;
+ int lineno;
+{
+ const char *filename = XSTR (desc, 0);
+ char *pathname = NULL;
+ FILE *input_file;
+ char *fname;
+ struct file_name_list *stackp;
+ int flen;
+
+ stackp = include;
+
+ /* If specified file name is absolute, just open it. */
+ if (IS_ABSOLUTE_PATHNAME (filename) || !stackp)
+ {
+ if (base_dir)
+ {
+ pathname = xmalloc (strlen (base_dir) + strlen (filename) + 1);
+ pathname = strcpy (pathname, base_dir);
+ strcat (pathname, filename);
+ strcat (pathname, "\0");
+ }
+ else
+ {
+ pathname = xstrdup (filename);
+ }
+ read_rtx_filename = pathname;
+ input_file = fopen (pathname, "r");
+
+ if (input_file == 0)
+ {
+ perror (pathname);
+ return FATAL_EXIT_CODE;
+ }
+ }
+ else if (stackp)
+ {
+
+ flen = strlen (filename);
+
+ fname = (char *) alloca (max_include_len + flen + 2);
+
+ /* + 2 above for slash and terminating null. */
+
+ /* Search directory path, trying to open the file.
+ Copy each filename tried into FNAME. */
+
+ for (; stackp; stackp = stackp->next)
+ {
+ if (stackp->fname)
+ {
+ strcpy (fname, stackp->fname);
+ strcat (fname, "/");
+ fname[strlen (fname) + flen] = 0;
+ }
+ else
+ {
+ fname[0] = 0;
+ }
+ strncat (fname, (const char *) filename, flen);
+ read_rtx_filename = fname;
+ input_file = fopen (fname, "r");
+ if (input_file != NULL)
+ break;
+ }
+ if (stackp == NULL)
+ {
+ if (strchr (fname, '/') == NULL || strchr (fname, '\\' ) || base_dir)
+ {
+ if (base_dir)
+ {
+ pathname =
+ xmalloc (strlen (base_dir) + strlen (filename) + 1);
+ pathname = strcpy (pathname, base_dir);
+ strcat (pathname, filename);
+ strcat (pathname, "\0");
+ }
+ else
+ pathname = xstrdup (filename);
+ }
+ read_rtx_filename = pathname;
+ input_file = fopen (pathname, "r");
+
+ if (input_file == 0)
+ {
+ perror (filename);
+ return FATAL_EXIT_CODE;
+ }
+ }
+
+ }
+
+ if (init_include_reader (input_file) == FATAL_EXIT_CODE)
+ message_with_line (lineno, "read errors found in include file %s\n", pathname);
+
+ return SUCCESS_EXIT_CODE;
+}
+
/* Process a top level rtx in some way, queueing as appropriate. */
static void
rtx desc;
int lineno;
{
+ const char *filename = XSTR (desc, 0);
+
switch (GET_CODE (desc))
{
case DEFINE_INSN:
queue_pattern (desc, &define_attr_tail, lineno);
break;
+ case INCLUDE:
+ if (process_include (desc, lineno) == FATAL_EXIT_CODE)
+ message_with_line (lineno, "include file at %s not found\n", filename);
+ break;
+
case DEFINE_INSN_AND_SPLIT:
{
const char *split_cond;
for (elem = define_cond_exec_queue; elem ; elem = elem->next)
process_one_cond_exec (elem);
}
+
+static char *
+save_string (s, len)
+ const char *s;
+ int len;
+{
+ register char *result = xmalloc (len + 1);
+
+ memcpy (result, s, len);
+ result[len] = 0;
+ return result;
+}
+
+\f
+/* The entry point for initializing the reader. */
+
+int
+init_md_reader_args (argc, argv)
+ int argc;
+ char **argv;
+{
+ int i;
+ const char *in_fname;
+
+ max_include_len = 0;
+ in_fname = NULL;
+ for (i = 1; i < argc; i++)
+ {
+ if (argv[i][0] != '-')
+ {
+ if (in_fname == NULL)
+ in_fname = argv[i];
+ }
+ else
+ {
+ int c = argv[i][1];
+ switch (c)
+ {
+ case 'I': /* Add directory to path for includes. */
+ {
+ struct file_name_list *dirtmp;
+
+ dirtmp = (struct file_name_list *)
+ xmalloc (sizeof (struct file_name_list));
+ dirtmp->next = 0; /* New one goes on the end */
+ if (include == 0)
+ include = dirtmp;
+ else
+ last_include->next = dirtmp;
+ last_include = dirtmp; /* Tail follows the last one */
+ if (argv[i][1] == 'I' && argv[i][2] != 0)
+ dirtmp->fname = argv[i] + 2;
+ else if (i + 1 == argc)
+ fatal ("Directory name missing after -I option");
+ else
+ dirtmp->fname = argv[++i];
+ if (strlen (dirtmp->fname) > max_include_len)
+ max_include_len = strlen (dirtmp->fname);
+ }
+ break;
+ default:
+ fatal ("Invalid option `%s'", argv[i]);
+
+ }
+ }
+ }
+ return init_md_reader (in_fname);
+}
\f
/* The entry point for initializing the reader. */
{
FILE *input_file;
int c;
+ char *lastsl;
+
+ if (!IS_ABSOLUTE_PATHNAME (filename))
+ {
+ lastsl = strrchr (filename, '/');
+ if (lastsl != NULL)
+ base_dir = save_string (filename, lastsl - filename + 1 );
+ }
read_rtx_filename = filename;
input_file = fopen (filename, "r");
c = read_skip_spaces (input_file);
if (c == EOF)
- break;
+ break;
ungetc (c, input_file);
lineno = read_rtx_lineno;
projects / platform / upstream / gcc.git / blobdiff