/*
-* Copyright (C) 2001 by Universitaet Karlsruhe
-* All rights reserved.
-*
-* Authors: Goetz Lindenmaier
-*
-* dbginfo: This is a empty implementation of the Firm interface to
-* debugging support. It only guarantees that the Firm library compiles
-* and runs without any real debugging support.
-* The functions herein are declared weak so that they can be overriden
-* by a real implementation.
-*/
-
-/* $Id$ */
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
+ * This file is part of libFirm.
+ * Copyright (C) 2012 University of Karlsruhe.
+ */
+
+/**
+ * @file
+ * @brief Implements the Firm interface to debug information.
+ * @author Goetz Lindenmaier, Michael Beck
+ * @date 2001
+ */
+#include "config.h"
#include "dbginfo_t.h"
#include "irnode_t.h"
#include "type_t.h"
#include "entity_t.h"
+#include "error.h"
+merge_pair_func *__dbg_info_merge_pair = default_dbg_info_merge_pair;
+merge_sets_func *__dbg_info_merge_sets = default_dbg_info_merge_sets;
-INLINE void
-dbg_info_merge_pair(ir_node *nw, ir_node *old, dbg_action info) {
- set_irn_dbg_info(nw, get_irn_dbg_info(old));
+void dbg_init(merge_pair_func *mpf, merge_sets_func *msf)
+{
+ __dbg_info_merge_pair = mpf ? mpf : default_dbg_info_merge_pair;
+ __dbg_info_merge_sets = msf ? msf : default_dbg_info_merge_sets;
}
-INLINE void
-dbg_info_merge_sets(ir_node **new_nodes, int n_new_nodes,
- ir_node **old_nodes, int n_old_nodes,
- dbg_action info) {
+/*
+ * Converts a debug_action into a string.
+ */
+const char *dbg_action_2_str(dbg_action a)
+{
+#define CASE(a) case a: return #a
+
+ switch (a) {
+ CASE(dbg_error);
+ CASE(dbg_opt_ssa);
+ CASE(dbg_opt_auxnode);
+ CASE(dbg_const_eval);
+ CASE(dbg_opt_cse);
+ CASE(dbg_straightening);
+ CASE(dbg_if_simplification);
+ CASE(dbg_algebraic_simplification);
+ CASE(dbg_write_after_write);
+ CASE(dbg_write_after_read);
+ CASE(dbg_read_after_write);
+ CASE(dbg_read_after_read);
+ CASE(dbg_read_a_const);
+ CASE(dbg_rem_poly_call);
+ CASE(dbg_dead_code);
+ CASE(dbg_opt_confirm);
+ CASE(dbg_gvn_pre);
+ CASE(dbg_combo);
+ CASE(dbg_jumpthreading);
+ CASE(dbg_backend);
+ default:
+ if (a <= dbg_max)
+ return "string conversion not implemented";
+ else
+ panic("Missing debug action");
+ }
+#undef CASE
}
+void default_dbg_info_merge_pair(ir_node *nw, ir_node *old, dbg_action info)
+{
+ dbg_info *new_db = get_irn_dbg_info(nw);
+ (void) info;
+ if (new_db == NULL)
+ set_irn_dbg_info(nw, get_irn_dbg_info(old));
+}
-void (*__dbg_info_merge_pair)(ir_node *nw, ir_node *old, dbg_action info)
- = &dbg_info_merge_pair;
-
-void (*__dbg_info_merge_sets)(ir_node **new_nodes, int n_new_nodes,
- ir_node **old_nodes, int n_old_nodes,
- dbg_action info)
- = &dbg_info_merge_sets;
-
+void default_dbg_info_merge_sets(ir_node **new_nodes, int n_new_nodes,
+ ir_node **old_nodes, int n_old_nodes,
+ dbg_action info)
+{
+ (void) info;
+ if (n_old_nodes == 1) {
+ dbg_info *old_db = get_irn_dbg_info(old_nodes[0]);
+ int i;
+
+ for (i = 0; i < n_new_nodes; ++i)
+ if (get_irn_dbg_info(new_nodes[i]) == NULL)
+ set_irn_dbg_info(new_nodes[i], old_db);
+ }
+}
-void dbg_init( merge_pair_func *mpf, merge_sets_func *msf )
+static src_loc_t default_retrieve_dbg(dbg_info const *const dbg)
{
- __dbg_info_merge_pair = mpf;
- __dbg_info_merge_sets = msf;
+ (void)dbg;
+ src_loc_t const loc = { NULL, 0, 0 };
+ return loc;
}
+/** The debug info retriever function. */
+static retrieve_dbg_func retrieve_dbg = default_retrieve_dbg;
+static retrieve_type_dbg_func retrieve_type_dbg = NULL;
-INLINE void
-set_irn_dbg_info(ir_node *n, struct dbg_info* db) {
- n->dbi = db;
+void ir_set_debug_retrieve(retrieve_dbg_func func)
+{
+ retrieve_dbg = func ? func : default_retrieve_dbg;
}
-INLINE struct dbg_info *
-get_irn_dbg_info(ir_node *n) {
- return n->dbi;
+src_loc_t ir_retrieve_dbg_info(dbg_info const *const dbg)
+{
+ return retrieve_dbg(dbg);
}
-
-/* Routines to access the field of an entity containing the
- debugging information. */
-INLINE void set_entity_dbg_info(entity *ent, dbg_info* db) {
- ent->dbi = db;
-}
-INLINE dbg_info *get_entity_dbg_info(entity *ent) {
- return ent->dbi;
+void ir_set_type_debug_retrieve(retrieve_type_dbg_func func)
+{
+ retrieve_type_dbg = func;
}
-/* Routines to access the field of a type containing the
- debugging information. */
-INLINE void set_type_dbg_info(type *tp, dbg_info* db) {
- tp->dbi = db;
+
+void ir_retrieve_type_dbg_info(char *buffer, size_t buffer_size,
+ const type_dbg_info *tdbgi)
+{
+ buffer[0] = '\0';
+ if (retrieve_type_dbg)
+ retrieve_type_dbg(buffer, buffer_size, tdbgi);
+ assert(buffer_size > 0);
+ buffer[buffer_size-1] = '\0';
}
-INLINE dbg_info *get_type_dbg_info(type *tp) {
- return tp->dbi;
+
+void ir_dbg_info_snprint(char *buf, size_t bufsize, const dbg_info *dbg)
+{
+ src_loc_t const loc = ir_retrieve_dbg_info(dbg);
+
+ if (!loc.file) {
+ assert(bufsize > 0);
+ buf[0] = 0;
+ return;
+ }
+ if (loc.column == 0) {
+ snprintf(buf, bufsize, "%s:%u", loc.file, loc.line);
+ } else {
+ snprintf(buf, bufsize, "%s:%u:%u", loc.file, loc.line, loc.column);
+ }
}
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