#include <sys/stat.h>
#include "filenames.h"
#include "libiberty.h"
+#include "demangle.h"
#include "debug.h"
#include "script.h"
}
void
+parse_optional_string(const char*, const char* arg, const char** retval)
+{
+ *retval = arg;
+}
+
+void
parse_dirlist(const char*, const char* arg, Dir_list* retval)
{
retval->push_back(Search_directory(arg, false));
{
if (equals)
*arg = equals + 1;
+ else if (retval->takes_optional_argument())
+ *arg = retval->default_value;
else if (*i < argc && !equals_only)
*arg = argv[(*i)++];
else
// We handle -z as a special case.
static gold::options::One_option dash_z("", gold::options::DASH_Z,
- 'z', "", "-z", "Z-OPTION", NULL);
+ 'z', "", "-z", "Z-OPTION", false,
+ NULL);
gold::options::One_option* retval = NULL;
if (this_argv[pos_in_argv_i] == 'z')
retval = &dash_z;
++(*i);
if (this_argv[pos_in_argv_i + 1] != '\0')
*arg = this_argv + pos_in_argv_i + 1;
+ else if (retval->takes_optional_argument())
+ *arg = retval->default_value;
else if (*i < argc)
*arg = argv[(*i)++];
else
{
General_options::General_options()
- : execstack_status_(General_options::EXECSTACK_FROM_INPUT), static_(false)
+ : execstack_status_(General_options::EXECSTACK_FROM_INPUT), static_(false),
+ do_demangle_(false)
{
}
else if (this->noexecstack())
this->set_execstack_status(EXECSTACK_NO);
+ // Handle the optional argument for --demangle.
+ if (this->user_set_demangle())
+ {
+ this->set_do_demangle(true);
+ const char* style = this->demangle();
+ if (*style != '\0')
+ {
+ enum demangling_styles style_code;
+
+ style_code = cplus_demangle_name_to_style(style);
+ if (style_code == unknown_demangling)
+ gold_fatal("unknown demangling style '%s'", style);
+ cplus_demangle_set_style(style_code);
+ }
+ }
+ else if (this->user_set_no_demangle())
+ this->set_do_demangle(false);
+ else
+ {
+ // Testing COLLECT_NO_DEMANGLE makes our default demangling
+ // behaviour identical to that of gcc's linker wrapper.
+ this->set_do_demangle(getenv("COLLECT_NO_DEMANGLE") == NULL);
+ }
+
// If --thread_count is specified, it applies to
// --thread-count-{initial,middle,final}, though it doesn't override
// them.
parse_string(const char* option_name, const char* arg, const char** retval);
extern void
+parse_optional_string(const char* option_name, const char* arg,
+ const char** retval);
+
+extern void
parse_dirlist(const char* option_name, const char* arg, Dir_list* retval);
extern void
// HELPARG is how you define the argument to the option.
// --help output is "-shortname HELPARG, --longname HELPARG: HELPSTRING"
// HELPARG should be NULL iff the option is a bool and takes no arg.
+// OPTIONAL_ARG is true if this option takes an optional argument. An
+// optional argument must be specifid as --OPTION=VALUE, not
+// --OPTION VALUE.
// READER provides parse_to_value, which is a function that will convert
// a char* argument into the proper type and store it in some variable.
// A One_option struct initializes itself with the global list of options
const char* default_value;
const char* helpstring;
const char* helparg;
+ bool optional_arg;
Struct_var* reader;
One_option(const char* ln, Dashes d, char sn, const char* dv,
- const char* hs, const char* ha, Struct_var* r)
+ const char* hs, const char* ha, bool oa, Struct_var* r)
: longname(ln), dashes(d), shortname(sn), default_value(dv ? dv : ""),
- helpstring(hs), helparg(ha), reader(r)
+ helpstring(hs), helparg(ha), optional_arg(oa), reader(r)
{
// In longname, we convert all underscores to dashes, since GNU
// style uses dashes in option names. longname is likely to have
takes_argument() const
{ return this->helparg != NULL; }
+ // Whether the argument is optional.
+ bool
+ takes_optional_argument() const
+ { return this->optional_arg; }
+
// Register this option with the global list of options.
void
register_option();
Struct_special(const char* varname, Dashes dashes, char shortname,
Parse_function parse_function,
const char* helpstring, const char* helparg)
- : option(varname, dashes, shortname, "", helpstring, helparg, this),
+ : option(varname, dashes, shortname, "", helpstring, helparg, false, this),
parse(parse_function)
{ }
// type__ for built-in types, and "const type__ &" otherwise.
#define DEFINE_var(varname__, dashes__, shortname__, default_value__, \
default_value_as_string__, helpstring__, helparg__, \
- type__, param_type__, parse_fn__) \
+ optional_arg__, type__, param_type__, parse_fn__) \
public: \
param_type__ \
varname__() const \
{ \
Struct_##varname__() \
: option(#varname__, dashes__, shortname__, default_value_as_string__, \
- helpstring__, helparg__, this), \
+ helpstring__, helparg__, optional_arg__, this), \
user_set_via_option(false), value(default_value__) \
{ } \
\
helpstring__, no_helpstring__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
default_value__ ? "true" : "false", helpstring__, NULL, \
- bool, bool, options::parse_bool) \
+ false, bool, bool, options::parse_bool) \
struct Struct_no_##varname__ : public options::Struct_var \
{ \
Struct_no_##varname__() : option("no-" #varname__, dashes__, '\0', \
default_value__ ? "false" : "true", \
- no_helpstring__, NULL, this) \
+ no_helpstring__, NULL, false, this) \
{ } \
\
void \
#define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- #default_value__, helpstring__, helparg__, \
+ #default_value__, helpstring__, helparg__, false, \
int, int, options::parse_uint)
#define DEFINE_uint64(varname__, dashes__, shortname__, default_value__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- #default_value__, helpstring__, helparg__, \
+ #default_value__, helpstring__, helparg__, false, \
uint64_t, uint64_t, options::parse_uint64)
#define DEFINE_double(varname__, dashes__, shortname__, default_value__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- #default_value__, helpstring__, helparg__, \
+ #default_value__, helpstring__, helparg__, false, \
double, double, options::parse_double)
#define DEFINE_string(varname__, dashes__, shortname__, default_value__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- default_value__, helpstring__, helparg__, \
+ default_value__, helpstring__, helparg__, false, \
const char*, const char*, options::parse_string)
// This is like DEFINE_string, but we convert each occurrence to a
#define DEFINE_dirlist(varname__, dashes__, shortname__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, , \
- "", helpstring__, helparg__, options::Dir_list, \
+ "", helpstring__, helparg__, false, options::Dir_list, \
const options::Dir_list&, options::parse_dirlist) \
void \
add_to_##varname__(const char* new_value) \
#define DEFINE_enum(varname__, dashes__, shortname__, default_value__, \
helpstring__, helparg__, ...) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- default_value__, helpstring__, helparg__, \
+ default_value__, helpstring__, helparg__, false, \
const char*, const char*, parse_choices_##varname__) \
private: \
static void parse_choices_##varname__(const char* option_name, \
}; \
Struct_##varname__ varname__##_initializer_
+// An option that takes an optional string argument. If the option is
+// used with no argument, the value will be the default, and
+// user_set_via_option will be true.
+#define DEFINE_optional_string(varname__, dashes__, shortname__, \
+ default_value__, \
+ helpstring__, helparg__) \
+ DEFINE_var(varname__, dashes__, shortname__, default_value__, \
+ default_value__, helpstring__, helparg__, true, \
+ const char*, const char*, options::parse_optional_string)
// A directory to search. For each directory we record whether it is
// in the sysroot. We need to know this so that, if a linker script
DEFINE_special(defsym, options::TWO_DASHES, '\0',
N_("Define a symbol"), N_("SYMBOL=EXPRESSION"));
- DEFINE_bool(demangle, options::TWO_DASHES, '\0',
- getenv("COLLECT_NO_DEMANGLE") == NULL,
- N_("Demangle C++ symbols in log messages"),
- N_("Do not demangle C++ symbols in log messages"));
+ DEFINE_optional_string(demangle, options::TWO_DASHES, '\0', NULL,
+ N_("Demangle C++ symbols in log messages"),
+ N_("[=STYLE]"));
+
+ DEFINE_bool(no_demangle, options::TWO_DASHES, '\0', false,
+ N_("Do not demangle C++ symbols in log messages"),
+ NULL);
DEFINE_bool(detect_odr_violations, options::TWO_DASHES, '\0', false,
N_("Try to detect violations of the One Definition Rule"),
is_stack_executable() const
{ return this->execstack_status_ == EXECSTACK_YES; }
+ // The --demangle option takes an optional string, and there is also
+ // a --no-demangle option. This is the best way to decide whether
+ // to demangle or not.
+ bool
+ do_demangle() const
+ { return this->do_demangle_; }
+
private:
// Don't copy this structure.
General_options(const General_options&);
EXECSTACK_NO
};
- Execstack execstack_status_;
void
set_execstack_status(Execstack value)
- { execstack_status_ = value; }
+ { this->execstack_status_ = value; }
+
+ void
+ set_do_demangle(bool value)
+ { this->do_demangle_ = value; }
- bool static_;
void
set_static(bool value)
{ static_ = value; }
// Apply any sysroot to the directory lists.
void
add_sysroot();
+
+ // Whether to mark the stack as executable.
+ Execstack execstack_status_;
+ // Whether to do a static link.
+ bool static_;
+ // Whether to do demangling.
+ bool do_demangle_;
};
// The position-dependent options. We use this to store the state of
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