#define GOLD_OPTIONS_H
#include <cstdlib>
+#include <cstring>
#include <list>
#include <string>
#include <vector>
namespace options
{
typedef std::vector<Search_directory> Dir_list;
+typedef Unordered_set<std::string> String_set;
// These routines convert from a string option to various types.
// Each gives a fatal error if it cannot parse the argument.
extern void
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
+parse_set(const char* option_name, const char* arg, String_set* retval);
+
extern void
parse_choices(const char* option_name, const char* arg, const char** retval,
const char* choices[], int num_choices);
// 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 \
user_set_##varname__() const \
{ return this->varname__##_.user_set_via_option; } \
\
+ void \
+ set_user_set_##varname__() \
+ { this->varname__##_.user_set_via_option = true; } \
+ \
private: \
struct Struct_##varname__ : public options::Struct_var \
{ \
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__) \
{ } \
\
// These macros allow for easy addition of a new commandline option.
// If no_helpstring__ is not NULL, then in addition to creating
-// VARNAME, we also create an option called no-VARNAME.
+// VARNAME, we also create an option called no-VARNAME (or, for a -z
+// option, noVARNAME).
#define DEFINE_bool(varname__, dashes__, shortname__, 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', \
+ Struct_no_##varname__() : option((dashes__ == options::DASH_Z \
+ ? "no" #varname__ \
+ : "no-" #varname__), \
+ dashes__, '\0', \
default_value__ ? "false" : "true", \
- no_helpstring__, NULL, this) \
+ no_helpstring__, NULL, false, this) \
{ } \
\
void \
}; \
Struct_no_##varname__ no_##varname__##_initializer_
+#define DEFINE_enable(varname__, dashes__, shortname__, default_value__, \
+ helpstring__, no_helpstring__) \
+ DEFINE_var(enable_##varname__, dashes__, shortname__, default_value__, \
+ default_value__ ? "true" : "false", helpstring__, NULL, \
+ false, bool, bool, options::parse_bool) \
+ struct Struct_disable_##varname__ : public options::Struct_var \
+ { \
+ Struct_disable_##varname__() : option("disable-" #varname__, \
+ dashes__, '\0', \
+ default_value__ ? "false" : "true", \
+ no_helpstring__, NULL, false, this) \
+ { } \
+ \
+ void \
+ parse_to_value(const char*, const char*, \
+ Command_line*, General_options* options) \
+ { options->set_enable_##varname__(false); } \
+ \
+ options::One_option option; \
+ }; \
+ Struct_disable_##varname__ disable_##varname__##_initializer_
+
#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) \
add_search_directory_to_##varname__(const Search_directory& dir) \
{ this->varname__##_.value.push_back(dir); }
+// This is like DEFINE_string, but we store a set of strings.
+#define DEFINE_set(varname__, dashes__, shortname__, \
+ helpstring__, helparg__) \
+ DEFINE_var(varname__, dashes__, shortname__, , \
+ "", helpstring__, helparg__, false, options::String_set, \
+ const options::String_set&, options::parse_set) \
+ public: \
+ bool \
+ any_##varname__() const \
+ { return !this->varname__##_.value.empty(); } \
+ \
+ bool \
+ is_##varname__(const char* symbol) const \
+ { \
+ return (!this->varname__##_.value.empty() \
+ && (this->varname__##_.value.find(std::string(symbol)) \
+ != this->varname__##_.value.end())); \
+ } \
+ \
+ options::String_set::const_iterator \
+ varname__##_begin() const \
+ { return this->varname__##_.value.begin(); } \
+ \
+ options::String_set::const_iterator \
+ varname__##_end() const \
+ { return this->varname__##_.value.end(); }
+
// When you have a list of possible values (expressed as string)
// After helparg__ should come an initializer list, like
// {"foo", "bar", "baz"}
#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, \
choices, sizeof(choices) / sizeof(*choices)); \
}
+// This is like DEFINE_bool, but VARNAME is the name of a different
+// option. This option becomes an alias for that one. INVERT is true
+// if this option is an inversion of the other one.
+#define DEFINE_bool_alias(option__, varname__, dashes__, shortname__, \
+ helpstring__, no_helpstring__, invert__) \
+ private: \
+ struct Struct_##option__ : public options::Struct_var \
+ { \
+ Struct_##option__() \
+ : option(#option__, dashes__, shortname__, "", helpstring__, \
+ NULL, false, this) \
+ { } \
+ \
+ void \
+ parse_to_value(const char*, const char*, \
+ Command_line*, General_options* options) \
+ { \
+ options->set_##varname__(!invert__); \
+ options->set_user_set_##varname__(); \
+ } \
+ \
+ options::One_option option; \
+ }; \
+ Struct_##option__ option__##_; \
+ \
+ struct Struct_no_##option__ : public options::Struct_var \
+ { \
+ Struct_no_##option__() \
+ : option((dashes__ == options::DASH_Z \
+ ? "no" #option__ \
+ : "no-" #option__), \
+ dashes__, '\0', "", no_helpstring__, \
+ NULL, false, this) \
+ { } \
+ \
+ void \
+ parse_to_value(const char*, const char*, \
+ Command_line*, General_options* options) \
+ { \
+ options->set_##varname__(invert__); \
+ options->set_user_set_##varname__(); \
+ } \
+ \
+ options::One_option option; \
+ }; \
+ Struct_no_##option__ no_##option__##_initializer_
+
// This is used for non-standard flags. It defines no functions; it
// just calls General_options::parse_VARNAME whenever the flag is
// seen. We declare parse_VARNAME as a static member of
}; \
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
N_("Report usage information"), NULL);
DEFINE_special(version, options::TWO_DASHES, 'v',
N_("Report version information"), NULL);
+ DEFINE_special(V, options::EXACTLY_ONE_DASH, '\0',
+ N_("Report version and target information"), NULL);
// These options are sorted approximately so that for each letter in
// the alphabet, we show the option whose shortname is that letter
DEFINE_bool(Bdynamic, options::ONE_DASH, '\0', true,
N_("-l searches for shared libraries"), NULL);
- // Bstatic affects the same variable as Bdynamic, so we have to use
- // the "special" macro to make that happen.
- DEFINE_special(Bstatic, options::ONE_DASH, '\0',
- N_("-l does not search for shared libraries"), NULL);
+ DEFINE_bool_alias(Bstatic, Bdynamic, options::ONE_DASH, '\0',
+ N_("-l does not search for shared libraries"), NULL,
+ true);
DEFINE_bool(Bsymbolic, options::ONE_DASH, '\0', false,
N_("Bind defined symbols locally"), NULL);
+ DEFINE_bool(Bsymbolic_functions, options::ONE_DASH, '\0', false,
+ N_("Bind defined function symbols locally"), NULL);
+
+ DEFINE_optional_string(build_id, options::TWO_DASHES, '\0', "sha1",
+ N_("Generate build ID note"),
+ N_("[=STYLE]"));
+
#ifdef HAVE_ZLIB_H
DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none",
N_("Compress .debug_* sections in the output file"),
N_("Alias for -d"), NULL);
DEFINE_string(debug, options::TWO_DASHES, '\0', "",
- N_("Turn on debugging"), N_("[task,script,all][,...]"));
+ N_("Turn on debugging"),
+ N_("[all,files,script,task][,...]"));
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"),
DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false,
N_("Create exception frame header"), NULL);
+ DEFINE_bool(fatal_warnings, options::TWO_DASHES, '\0', false,
+ N_("Treat warnings as errors"),
+ N_("Do not treat warnings as errors"));
+
DEFINE_string(soname, options::ONE_DASH, 'h', NULL,
N_("Set shared library name"), N_("FILENAME"));
DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "",
N_("Ignored for compatibility"), N_("EMULATION"));
+ DEFINE_bool(print_map, options::TWO_DASHES, 'M', false,
+ N_("Write map file on standard output"), NULL);
+ DEFINE_string(Map, options::ONE_DASH, '\0', NULL, N_("Write map file"),
+ N_("MAPFILENAME"));
+
+ DEFINE_enable(new_dtags, options::EXACTLY_TWO_DASHES, '\0', false,
+ N_("Enable use of DT_RUNPATH and DT_FLAGS"),
+ N_("Disable use of DT_RUNPATH and DT_FLAGS"));
+
+ DEFINE_bool(noinhibit_exec, options::TWO_DASHES, '\0', false,
+ N_("Create an output file even if errors occur"), NULL);
+
+ DEFINE_bool_alias(no_undefined, defs, options::TWO_DASHES, '\0',
+ N_("Report undefined symbols (even with --shared)"),
+ NULL, false);
+
DEFINE_string(output, options::TWO_DASHES, 'o', "a.out",
N_("Set output file name"), N_("FILE"));
DEFINE_string(oformat, options::EXACTLY_TWO_DASHES, '\0', "elf",
N_("Set output format"), N_("[binary]"));
+ DEFINE_bool(Qy, options::EXACTLY_ONE_DASH, '\0', false,
+ N_("Ignored for SVR4 compatibility"), NULL);
+
DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false,
N_("Generate relocations in output"), NULL);
DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false,
N_("Generate relocatable output"), NULL);
+ DEFINE_bool(relax, options::TWO_DASHES, '\0', false,
+ N_("Relax branches on certain targets"), NULL);
+
// -R really means -rpath, but can mean --just-symbols for
// compatibility with GNU ld. -rpath is always -rpath, so we list
// it separately.
N_("Strip all symbols"), NULL);
DEFINE_bool(strip_debug, options::TWO_DASHES, 'S', false,
N_("Strip debugging information"), NULL);
+ DEFINE_bool(strip_debug_non_line, options::TWO_DASHES, '\0', false,
+ N_("Emit only debug line number information"), NULL);
DEFINE_bool(strip_debug_gdb, options::TWO_DASHES, '\0', false,
N_("Strip debug symbols that are unused by gdb "
"(at least versions <= 6.7)"), NULL);
DEFINE_string(sysroot, options::TWO_DASHES, '\0', "",
N_("Set target system root directory"), N_("DIR"));
+ DEFINE_bool(trace, options::TWO_DASHES, 't', false,
+ N_("Print the name of each input file"), NULL);
+
DEFINE_special(script, options::TWO_DASHES, 'T',
N_("Read linker script"), N_("FILE"));
DEFINE_uint64(Ttext, options::ONE_DASH, '\0', -1U,
N_("Set the address of the text segment"), N_("ADDRESS"));
+ DEFINE_set(undefined, options::TWO_DASHES, 'u',
+ N_("Create undefined reference to SYMBOL"), N_("SYMBOL"));
+
+ DEFINE_bool(verbose, options::TWO_DASHES, '\0', false,
+ N_("Synonym for --debug=files"), NULL);
+
DEFINE_special(version_script, options::TWO_DASHES, '\0',
N_("Read version script"), N_("FILE"));
N_("Include all archive contents"),
N_("Include only needed archive contents"));
+ DEFINE_set(wrap, options::TWO_DASHES, '\0',
+ N_("Use wrapper functions for SYMBOL"), N_("SYMBOL"));
+
+ DEFINE_set(trace_symbol, options::TWO_DASHES, 'y',
+ N_("Trace references to symbol"), N_("SYMBOL"));
+
+ DEFINE_string(Y, options::EXACTLY_ONE_DASH, 'Y', "",
+ N_("Default search path for Solaris compatibility"),
+ N_("PATH"));
+
DEFINE_special(start_group, options::TWO_DASHES, '(',
N_("Start a library search group"), NULL);
DEFINE_special(end_group, options::TWO_DASHES, ')',
// The -z options.
- // Both execstack and noexecstack differ from the default execstack_
- // value, so we need to use different variables for them.
+ DEFINE_bool(combreloc, options::DASH_Z, '\0', true,
+ N_("Sort dynamic relocs"),
+ N_("Do not sort dynamic relocs"));
DEFINE_uint64(common_page_size, options::DASH_Z, '\0', 0,
N_("Set common page size to SIZE"), N_("SIZE"));
+ DEFINE_bool(defs, options::DASH_Z, '\0', false,
+ N_("Report undefined symbols (even with --shared)"),
+ NULL);
DEFINE_bool(execstack, options::DASH_Z, '\0', false,
N_("Mark output as requiring executable stack"), NULL);
DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0,
N_("Set maximum page size to SIZE"), N_("SIZE"));
DEFINE_bool(noexecstack, options::DASH_Z, '\0', false,
N_("Mark output as not requiring executable stack"), NULL);
+ DEFINE_bool(initfirst, options::DASH_Z, '\0', false,
+ N_("Mark DSO to be initialized first at runtime"),
+ NULL);
+ DEFINE_bool(interpose, options::DASH_Z, '\0', false,
+ N_("Mark object to interpose all DSOs but executable"),
+ NULL);
+ DEFINE_bool(loadfltr, options::DASH_Z, '\0', false,
+ N_("Mark object requiring immediate process"),
+ NULL);
+ DEFINE_bool(nodefaultlib, options::DASH_Z, '\0', false,
+ N_("Mark object not to use default search paths"),
+ NULL);
+ DEFINE_bool(nodelete, options::DASH_Z, '\0', false,
+ N_("Mark DSO non-deletable at runtime"),
+ NULL);
+ DEFINE_bool(nodlopen, options::DASH_Z, '\0', false,
+ N_("Mark DSO not available to dlopen"),
+ NULL);
+ DEFINE_bool(nodump, options::DASH_Z, '\0', false,
+ N_("Mark DSO not available to dldump"),
+ NULL);
+ DEFINE_bool(relro, options::DASH_Z, '\0', false,
+ N_("Where possible mark variables read-only after relocation"),
+ N_("Don't mark variables read-only after relocation"));
public:
typedef options::Dir_list Dir_list;
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