/* C preprocessor macro tables for GDB.
- Copyright (C) 2002, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 2002, 2007-2012 Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of GDB.
#include "defs.h"
#include "gdb_obstack.h"
#include "splay-tree.h"
+#include "filenames.h"
#include "symtab.h"
#include "symfile.h"
#include "objfiles.h"
#include "gdb_assert.h"
#include "bcache.h"
#include "complaints.h"
+#include "macroexp.h"
\f
/* The macro table structure. */
macro_lookup_inclusion (struct macro_source_file *source, const char *name)
{
/* Is SOURCE itself named NAME? */
- if (strcmp (name, source->filename) == 0)
+ if (filename_cmp (name, source->filename) == 0)
return source;
/* The filename in the source structure is probably a full path, but
int src_name_len = strlen (source->filename);
/* We do mean < here, and not <=; if the lengths are the same,
- then the strcmp above should have triggered, and we need to
+ then the filename_cmp above should have triggered, and we need to
check for a slash here. */
if (name_len < src_name_len
- && source->filename[src_name_len - name_len - 1] == '/'
- && strcmp (name, source->filename + src_name_len - name_len) == 0)
+ && IS_DIR_SEPARATOR (source->filename[src_name_len - name_len - 1])
+ && filename_cmp (name,
+ source->filename + src_name_len - name_len) == 0)
return source;
}
d->table = t;
d->kind = kind;
d->replacement = macro_bcache_str (t, replacement);
+ d->argc = argc;
if (kind == macro_function_like)
{
/* Now bcache the array of argument pointers itself. */
d->argv = macro_bcache (t, cached_argv, cached_argv_size);
- d->argc = argc;
}
/* We don't bcache the entire definition structure because it's got
return 0;
}
+/* A helper function to define a new object-like macro. */
-void
-macro_define_object (struct macro_source_file *source, int line,
- const char *name, const char *replacement)
+static void
+macro_define_object_internal (struct macro_source_file *source, int line,
+ const char *name, const char *replacement,
+ enum macro_special_kind kind)
{
struct macro_table *t = source->table;
struct macro_key *k = NULL;
return;
k = new_macro_key (t, name, source, line);
- d = new_macro_definition (t, macro_object_like, 0, 0, replacement);
+ d = new_macro_definition (t, macro_object_like, kind, 0, replacement);
splay_tree_insert (t->definitions, (splay_tree_key) k, (splay_tree_value) d);
}
+void
+macro_define_object (struct macro_source_file *source, int line,
+ const char *name, const char *replacement)
+{
+ macro_define_object_internal (source, line, name, replacement,
+ macro_ordinary);
+}
+
+/* See macrotab.h. */
+
+void
+macro_define_special (struct macro_table *table)
+{
+ macro_define_object_internal (table->main_source, -1, "__FILE__", "",
+ macro_FILE);
+ macro_define_object_internal (table->main_source, -1, "__LINE__", "",
+ macro_LINE);
+}
void
macro_define_function (struct macro_source_file *source, int line,
}
}
+/* A helper function that rewrites the definition of a special macro,
+ when needed. */
+
+static struct macro_definition *
+fixup_definition (const char *filename, int line, struct macro_definition *def)
+{
+ static char *saved_expansion;
+
+ if (saved_expansion)
+ {
+ xfree (saved_expansion);
+ saved_expansion = NULL;
+ }
+
+ if (def->kind == macro_object_like)
+ {
+ if (def->argc == macro_FILE)
+ {
+ saved_expansion = macro_stringify (filename);
+ def->replacement = saved_expansion;
+ }
+ else if (def->argc == macro_LINE)
+ {
+ saved_expansion = xstrprintf ("%d", line);
+ def->replacement = saved_expansion;
+ }
+ }
+
+ return def;
+}
struct macro_definition *
macro_lookup_definition (struct macro_source_file *source,
splay_tree_node n = find_definition (name, source, line);
if (n)
- return (struct macro_definition *) n->value;
+ return fixup_definition (source->filename, line,
+ (struct macro_definition *) n->value);
else
return 0;
}
{
struct macro_for_each_data *datum = (struct macro_for_each_data *) arg;
struct macro_key *key = (struct macro_key *) node->key;
- struct macro_definition *def = (struct macro_definition *) node->value;
+ struct macro_definition *def
+ = fixup_definition (key->start_file->filename, key->start_line,
+ (struct macro_definition *) node->value);
- (*datum->fn) (key->name, def, datum->user_data);
+ (*datum->fn) (key->name, def, key->start_file, key->start_line,
+ datum->user_data);
return 0;
}
{
struct macro_for_each_data *datum = (struct macro_for_each_data *) info;
struct macro_key *key = (struct macro_key *) node->key;
- struct macro_definition *def = (struct macro_definition *) node->value;
+ struct macro_definition *def
+ = fixup_definition (datum->file->filename, datum->line,
+ (struct macro_definition *) node->value);
/* See if this macro is defined before the passed-in line, and
extends past that line. */
&& (!key->end_file
|| compare_locations (key->end_file, key->end_line,
datum->file, datum->line) >= 0))
- (*datum->fn) (key->name, def, datum->user_data);
+ (*datum->fn) (key->name, def, key->start_file, key->start_line,
+ datum->user_data);
return 0;
}