/* C preprocessor macro expansion commands for GDB.
- Copyright (C) 2002, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2007, 2008, 2009, 2010, 2011
+ Free Software Foundation, Inc.
Contributed by Red Hat, Inc.
This file is part of GDB.
struct macro_scope *ms = NULL;
char *expanded = NULL;
struct cleanup *cleanup_chain = make_cleanup (free_current_contents, &ms);
+
make_cleanup (free_current_contents, &expanded);
/* You know, when the user doesn't specify any expression, it would be
fprintf_filtered (gdb_stdout, "Defined at ");
show_pp_source_pos (gdb_stdout, file, line);
- fprintf_filtered (gdb_stdout, "#define %s", name);
+ if (line != 0)
+ fprintf_filtered (gdb_stdout, "#define %s", name);
+ else
+ fprintf_filtered (gdb_stdout, "-D%s", name);
if (d->kind == macro_function_like)
{
int i;
}
fputs_filtered (")", gdb_stdout);
}
- fprintf_filtered (gdb_stdout, " %s\n", d->replacement);
+ if (line != 0)
+ fprintf_filtered (gdb_stdout, " %s\n", d->replacement);
+ else
+ fprintf_filtered (gdb_stdout, "=%s\n", d->replacement);
}
else
{
++*expp;
}
+/* Try to find the bounds of an identifier. If an identifier is
+ found, returns a newly allocated string; otherwise returns NULL.
+ EXPP is a pointer to an input string; it is updated to point to the
+ text following the identifier. If IS_PARAMETER is true, this
+ function will also allow "..." forms as used in varargs macro
+ parameters. */
+
static char *
-extract_identifier (char **expp)
+extract_identifier (char **expp, int is_parameter)
{
char *result;
char *p = *expp;
unsigned int len;
- if (! *p || ! macro_is_identifier_nondigit (*p))
- return NULL;
- for (++p;
- *p && (macro_is_identifier_nondigit (*p) || macro_is_digit (*p));
- ++p)
- ;
+
+ if (is_parameter && !strncmp (p, "...", 3))
+ {
+ /* Ok. */
+ }
+ else
+ {
+ if (! *p || ! macro_is_identifier_nondigit (*p))
+ return NULL;
+ for (++p;
+ *p && (macro_is_identifier_nondigit (*p) || macro_is_digit (*p));
+ ++p)
+ ;
+ }
+
+ if (is_parameter && !strncmp (p, "...", 3))
+ p += 3;
+
len = p - *expp;
result = (char *) xmalloc (len + 1);
memcpy (result, *expp, len);
{
int i;
struct macro_definition *loc = (struct macro_definition *) ptr;
+
for (i = 0; i < loc->argc; ++i)
xfree ((char *) loc->argv[i]);
xfree ((char *) loc->argv);
{
struct macro_definition new_macro;
char *name = NULL;
- struct cleanup *cleanup_chain = make_cleanup (free_macro_definition_ptr,
- &new_macro);
+ struct cleanup *cleanup_chain;
+
+ if (!exp)
+ error (_("usage: macro define NAME[(ARGUMENT-LIST)] [REPLACEMENT-LIST]"));
+
+ cleanup_chain = make_cleanup (free_macro_definition_ptr, &new_macro);
make_cleanup (free_current_contents, &name);
memset (&new_macro, 0, sizeof (struct macro_definition));
skip_ws (&exp);
- name = extract_identifier (&exp);
+ name = extract_identifier (&exp, 0);
if (! name)
error (_("Invalid macro name."));
if (*exp == '(')
{
alloced *= 2;
argv = (char **) xrealloc (argv, alloced * sizeof (char *));
- /* Must update new_macro as well... */
+ /* Must update new_macro as well... */
new_macro.argv = (const char * const *) argv;
}
- argv[new_macro.argc] = extract_identifier (&exp);
+ argv[new_macro.argc] = extract_identifier (&exp, 1);
if (! argv[new_macro.argc])
error (_("Macro is missing an argument."));
++new_macro.argc;
}
/* Skip the closing paren. */
++exp;
+ skip_ws (&exp);
macro_define_function (macro_main (macro_user_macros), -1, name,
new_macro.argc, (const char **) new_macro.argv,
exp);
}
else
- macro_define_object (macro_main (macro_user_macros), -1, name, exp);
+ {
+ skip_ws (&exp);
+ macro_define_object (macro_main (macro_user_macros), -1, name, exp);
+ }
do_cleanups (cleanup_chain);
}
macro_undef_command (char *exp, int from_tty)
{
char *name;
+
+ if (!exp)
+ error (_("usage: macro undef NAME"));
+
skip_ws (&exp);
- name = extract_identifier (&exp);
+ name = extract_identifier (&exp, 0);
if (! name)
error (_("Invalid macro name."));
macro_undef (macro_main (macro_user_macros), -1, name);
static void
-print_one_macro (const char *name, const struct macro_definition *macro)
+print_one_macro (const char *name, const struct macro_definition *macro,
+ void *ignore)
{
fprintf_filtered (gdb_stdout, "macro define %s", name);
if (macro->kind == macro_function_like)
{
int i;
+
fprintf_filtered (gdb_stdout, "(");
for (i = 0; i < macro->argc; ++i)
fprintf_filtered (gdb_stdout, "%s%s", (i > 0) ? ", " : "",
macro->argv[i]);
fprintf_filtered (gdb_stdout, ")");
}
- /* Note that we don't need a leading space here -- "macro define"
- provided it. */
- fprintf_filtered (gdb_stdout, "%s\n", macro->replacement);
+ fprintf_filtered (gdb_stdout, " %s\n", macro->replacement);
}
static void
macro_list_command (char *exp, int from_tty)
{
- macro_for_each (macro_user_macros, print_one_macro);
+ macro_for_each (macro_user_macros, print_one_macro, NULL);
}
void
_initialize_macrocmd (void)
{
- struct cmd_list_element *c;
-
/* We introduce a new command prefix, `macro', under which we'll put
the various commands for working with preprocessor macros. */
add_prefix_cmd ("macro", class_info, macro_command,