becopyheur2: Cache the admissible registers eagerly.

[libfirm] / ir / common / debug.c

diff --git a/ir/common/debug.c b/ir/common/debug.c
index 6dd5d6d..70d60ed 100644 (file)
--- a/ir/common/debug.c
+++ b/ir/common/debug.c
@@ -1,12 +1,17 @@
-/**
- * Debug facility.
- * @author Michael Beck, Sebastian Hack
- * @date 15.12.2004
+/*
+ * This file is part of libFirm.
+ * Copyright (C) 2012 University of Karlsruhe.
  */
 
-#ifdef HAVE_CONFIG_H
+/**
+ * @file
+ * @brief   Debug facility.
+ * @author  Michael Beck, Sebastian Hack
+ * @date    15.12.2004
+ */
 #include "config.h"
-#endif
+
+#ifdef DEBUG_libfirm
 
 #include <stdarg.h>
 #include <string.h>
@@ -21,91 +26,131 @@
 static struct obstack dbg_obst;
 static set *module_set;
 
-struct _firm_dbg_module_t {
-       unsigned mask;
-       const char *name;
-       FILE *file;
+/**
+ * A debug module.
+ */
+struct firm_dbg_module_t {
+  unsigned mask;
+  const char *name;
+  FILE *file;
 };
 
+/**
+ * Compares two modules by comparing their names
+ */
 static int module_cmp(const void *p1, const void *p2, size_t size)
 {
-       const firm_dbg_module_t *m1 = p1;
-       const firm_dbg_module_t *m2 = p2;
-       return strcmp(m1->name, m2->name);
+  const firm_dbg_module_t *m1 = (const firm_dbg_module_t*)p1;
+  const firm_dbg_module_t *m2 = (const firm_dbg_module_t*)p2;
+  (void) size;
+
+  return strcmp(m1->name, m2->name);
 }
 
+/**
+ * initialize the debug module
+ */
 static void firm_dbg_init(void)
 {
-       obstack_init(&dbg_obst);
-       module_set = new_set(module_cmp, 16);
+  obstack_init(&dbg_obst);
+  module_set = new_set(module_cmp, 16);
 }
 
 firm_dbg_module_t *firm_dbg_register(const char *name)
 {
-       firm_dbg_module_t mod;
-       mod.mask = 0;
-       mod.name = name;
-       mod.file = stderr;
+  firm_dbg_module_t mod;
+  mod.mask = 0;
+  mod.name = name;
+  mod.file = stderr;
 
-       if(!module_set)
-               firm_dbg_init();
+  if (!module_set)
+    firm_dbg_init();
 
-       return set_insert(module_set, &mod, sizeof(mod), HASH_STR(name, strlen(name)));
+  return set_insert(firm_dbg_module_t, module_set, &mod, sizeof(mod), hash_str(name));
 }
 
 void firm_dbg_set_mask(firm_dbg_module_t *module, unsigned mask)
 {
-       module->mask = mask;
+  module->mask = mask;
 }
 
 unsigned firm_dbg_get_mask(const firm_dbg_module_t *module)
 {
-       return module->mask;
+  return module->mask;
 }
 
 void firm_dbg_set_file(firm_dbg_module_t *module, FILE *file)
 {
-       module->file = file;
+  module->file = file;
 }
 
-typedef struct _msg_info_t {
-       const char *msg;
-       const firm_dbg_module_t *mod;
+/**
+ * A message info: a pair of debug handle and message
+ */
+typedef struct msg_info_t {
+  const char *msg;
+  const firm_dbg_module_t *mod;
 } msg_info_t;
 
+/**
+ * Formats a message given by a printf-like format and a va_list argument,
+ * puts the test on an obstack and return a msg_info.
+ */
 static void *make_msg_info(const firm_dbg_module_t *mod, const char *fmt, va_list args)
 {
-       static const char msg_header[] = "%s(%d) %s: ";
-       msg_info_t *res = obstack_alloc(&dbg_obst, sizeof(*res));
+  static const char msg_header[] = "%s(%d) %s: ";
+  msg_info_t *res = OALLOC(&dbg_obst, msg_info_t);
 
-       obstack_grow(&dbg_obst, msg_header, sizeof(msg_header) - 1);
-       ir_obst_vprintf(&dbg_obst, fmt, args);
-       obstack_1grow(&dbg_obst, '\0');
+  obstack_grow(&dbg_obst, msg_header, sizeof(msg_header) - 1);
+  ir_obst_vprintf(&dbg_obst, fmt, args);
+  obstack_1grow(&dbg_obst, '\0');
 
-       res->msg = obstack_finish(&dbg_obst);
-       res->mod = mod;
-       return res;
+  res->msg = (const char*)obstack_finish(&dbg_obst);
+  res->mod = mod;
+  return res;
 }
 
 void *_firm_dbg_make_msg(const firm_dbg_module_t *mod, unsigned mask, const char *fmt, ...)
 {
-       void *res = NULL;
+  void *res = NULL;
 
-       if(mask == 0 || (mod->mask & mask)) {
-               va_list args;
-               va_start(args, fmt);
-               res = make_msg_info(mod, fmt, args);
-               va_end(args);
-       }
+  if (mask == 0 || (mod->mask & mask)) {
+    va_list args;
+    va_start(args, fmt);
+    res = make_msg_info(mod, fmt, args);
+    va_end(args);
+  }
 
-       return res;
+  return res;
 }
 
 void _firm_dbg_print_msg(const char *filename, int line, const char *func, void *mi_ptr)
 {
-       msg_info_t *mi = mi_ptr;
-       if(mi) {
-               fprintf(mi->mod->file, mi->msg, filename, line, func);
-               obstack_free(&dbg_obst, mi);
-       }
+  msg_info_t *mi = (msg_info_t*)mi_ptr;
+  if (mi) {
+    fprintf(mi->mod->file, mi->msg, filename, line, func);
+    obstack_free(&dbg_obst, mi);
+  }
+}
+
+void _firm_dbg_print(const firm_dbg_module_t *mod, unsigned mask, const char *fmt, ...)
+{
+  if (mask == 0 || (mod->mask & mask)) {
+    va_list args;
+    char *res;
+    va_start(args, fmt);
+    ir_obst_vprintf(&dbg_obst, fmt, args);
+    obstack_1grow(&dbg_obst, '\0');
+    res = (char*)obstack_finish(&dbg_obst);
+    fprintf(mod->file, "%s", res);
+    obstack_free(&dbg_obst, res);
+    va_end(args);
+  }
 }
+
+#else /* DEBUG_libfirm */
+
+/* some picky compiler don't allow empty files */
+static int __attribute__((unused)) dummy;
+
+#endif /* DEBUG_libfirm */