[PATCH 03/14] Add file support and functions for diagnostic support.

[Bill Schmidt]

2020-02-03  Bill Schmidt  <wschmidt@linux.ibm.com>

        * config/rs6000/rs6000-genbif.c	(bif_file): New	filescope
	variable.
        (ovld_file): Likewise.
        (header_file): Likewise.
        (init_file): Likewise.
        (defines_file):	Likewise.
        (pgm_path): Likewise.
        (bif_path): Likewise.
	(ovld_path): Likewise.
        (header_path): Likewise.
        (init_path): Likewise.
        (defines_path):	Likewise.
        (LINELEN): New defined constant.
        (linebuf): New filescope variable.
        (line):	Likewise.
        (pos): Likewise.
        (diag):	Likewise.
        (bif_diag): New	function.
        (ovld_diag): New function.
---
 gcc/config/rs6000/rs6000-genbif.c | 47 +++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/gcc/config/rs6000/rs6000-genbif.c b/gcc/config/rs6000/rs6000-genbif.c
index a53209ed040..3fb13cb11d6 100644
--- a/gcc/config/rs6000/rs6000-genbif.c
+++ b/gcc/config/rs6000/rs6000-genbif.c
@@ -122,3 +122,50 @@ along with GCC; see the file COPYING3.  If not see
 #include <ctype.h>
 #include <string.h>
 #include <assert.h>
+
+/* Input and output file descriptors and pathnames.  */
+static FILE *bif_file;
+static FILE *ovld_file;
+static FILE *header_file;
+static FILE *init_file;
+static FILE *defines_file;
+
+static const char *pgm_path;
+static const char *bif_path;
+static const char *ovld_path;
+static const char *header_path;
+static const char *init_path;
+static const char *defines_path;
+
+/* Position information.  Note that "pos" is zero-indexed, but users
+   expect one-indexed column information, so representations of "pos"
+   as columns in diagnostic messages must be adjusted.  */
+#define LINELEN 1024
+static char linebuf[LINELEN];
+static int line;
+static int pos;
+
+/* Pointer to a diagnostic function.  */
+void (*diag) (const char *, ...) __attribute__ ((format (printf, 1, 2)))
+  = NULL;
+
+/* Custom diagnostics.  */
+static void __attribute__ ((format (printf, 1, 2)))
+bif_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", bif_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
+
+static void __attribute__ ((format (printf, 1, 2)))
+ovld_diag (const char * fmt, ...)
+{
+  va_list args;
+  fprintf (stderr, "%s:%d: ", ovld_path, line);
+  va_start (args, fmt);
+  vfprintf (stderr, fmt, args);
+  va_end (args);
+}
-- 
2.17.1