// options.h -- handle command line options for gold -*- C++ -*-
-// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+// Copyright (C) 2006-2020 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
#define GOLD_OPTIONS_H
#include <cstdlib>
+#include <cstring>
#include <list>
+#include <map>
#include <string>
#include <vector>
class General_options;
class Search_directory;
class Input_file_group;
+class Input_file_lib;
class Position_dependent_options;
class Target;
+class Plugin_manager;
+class Script_info;
+
+// Incremental build action for a specific file, as selected by the user.
+
+enum Incremental_disposition
+{
+ // Startup files that appear before the first disposition option.
+ // These will default to INCREMENTAL_CHECK unless the
+ // --incremental-startup-unchanged option is given.
+ // (For files added implicitly by gcc before any user options.)
+ INCREMENTAL_STARTUP,
+ // Determine the status from the timestamp (default).
+ INCREMENTAL_CHECK,
+ // Assume the file changed from the previous build.
+ INCREMENTAL_CHANGED,
+ // Assume the file didn't change from the previous build.
+ INCREMENTAL_UNCHANGED
+};
// The nested namespace is to contain all the global variables and
// structs that need to be defined in the .h file, but do not need to
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_bool(const char* option_name, const char* arg, bool* retval);
+extern void
+parse_int(const char* option_name, const char* arg, int* retval);
+
extern void
parse_uint(const char* option_name, const char* arg, int* retval);
extern void
parse_double(const char* option_name, const char* arg, double* retval);
+extern void
+parse_percent(const char* option_name, const char* arg, double* retval);
+
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);
+ const char* choices[], int num_choices);
struct Struct_var;
// 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.
+// IS_DEFAULT is true for boolean options that are on by default,
+// and thus should have "(default)" printed with the helpstring.
// A One_option struct initializes itself with the global list of options
// at constructor time, so be careful making one of these.
struct One_option
const char* default_value;
const char* helpstring;
const char* helparg;
+ bool optional_arg;
Struct_var* reader;
+ bool is_default;
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,
+ bool id)
: 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),
+ is_default(id)
{
// 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();
// OPTIONS: the global General_options object. Used by DEFINE_special.
virtual void
parse_to_value(const char* option, const char* arg,
- Command_line* cmdline, General_options* options) = 0;
+ Command_line* cmdline, General_options* options) = 0;
virtual
~Struct_var() // To make gcc happy.
{ }
{
// If you change this, change the parse-fn in DEFINE_special as well.
typedef void (General_options::*Parse_function)(const char*, const char*,
- Command_line*);
+ Command_line*);
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),
+ Parse_function parse_function,
+ const char* helpstring, const char* helparg)
+ : option(varname, dashes, shortname, "", helpstring, helparg, false, this,
+ false),
parse(parse_function)
{ }
void parse_to_value(const char* option, const char* arg,
- Command_line* cmdline, General_options* options)
+ Command_line* cmdline, General_options* options)
{ (options->*(this->parse))(option, arg, cmdline); }
One_option option;
// var() and set_var() as General_options methods. Arguments as are
// for the constructor for One_option. param_type__ is the same as
// type__ for built-in types, and "const type__ &" otherwise.
+//
+// When we define the linker command option "assert", the macro argument
+// varname__ of DEFINE_var below will be replaced by "assert". On Mac OSX
+// assert.h is included implicitly by one of the library headers we use. To
+// avoid unintended macro substitution of "assert()", we need to enclose
+// varname__ with parenthese.
#define DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- default_value_as_string__, helpstring__, helparg__, \
- type__, param_type__, parse_fn__) \
+ default_value_as_string__, helpstring__, helparg__, \
+ optional_arg__, type__, param_type__, parse_fn__, \
+ is_default__) \
public: \
param_type__ \
- varname__() const \
+ (varname__)() const \
{ return this->varname__##_.value; } \
- \
+ \
bool \
user_set_##varname__() const \
{ return this->varname__##_.user_set_via_option; } \
- \
+ \
+ void \
+ set_user_set_##varname__() \
+ { this->varname__##_.user_set_via_option = true; } \
+ \
+ static const bool varname__##is_default = is_default__; \
+ \
private: \
struct Struct_##varname__ : public options::Struct_var \
{ \
Struct_##varname__() \
: option(#varname__, dashes__, shortname__, default_value_as_string__, \
- helpstring__, helparg__, this), \
- user_set_via_option(false), value(default_value__) \
+ helpstring__, helparg__, optional_arg__, this, is_default__), \
+ user_set_via_option(false), value(default_value__) \
{ } \
- \
+ \
void \
parse_to_value(const char* option_name, const char* arg, \
- Command_line*, General_options*) \
+ Command_line*, General_options*) \
{ \
parse_fn__(option_name, arg, &this->value); \
this->user_set_via_option = true; \
} \
- \
+ \
options::One_option option; \
bool user_set_via_option; \
type__ 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__) \
+ helpstring__, no_helpstring__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- default_value__ ? "true" : "false", helpstring__, NULL, \
- bool, bool, options::parse_bool) \
+ default_value__ ? "true" : "false", helpstring__, NULL, \
+ false, bool, bool, options::parse_bool, default_value__) \
+ struct Struct_no_##varname__ : public options::Struct_var \
+ { \
+ Struct_no_##varname__() : option((dashes__ == options::DASH_Z \
+ ? "no" #varname__ \
+ : "no-" #varname__), \
+ dashes__, '\0', \
+ default_value__ ? "false" : "true", \
+ no_helpstring__, NULL, false, this, \
+ !(default_value__)) \
+ { } \
+ \
+ void \
+ parse_to_value(const char*, const char*, \
+ Command_line*, General_options* options) \
+ { \
+ options->set_##varname__(false); \
+ options->set_user_set_##varname__(); \
+ } \
+ \
+ options::One_option option; \
+ }; \
+ Struct_no_##varname__ no_##varname__##_initializer_
+
+#define DEFINE_bool_ignore(varname__, dashes__, shortname__, \
+ helpstring__, no_helpstring__) \
+ DEFINE_var(varname__, dashes__, shortname__, false, \
+ "false", helpstring__, NULL, \
+ false, bool, bool, options::parse_bool, false) \
struct Struct_no_##varname__ : public options::Struct_var \
{ \
- Struct_no_##varname__() : option("no-" #varname__, dashes__, '\0', \
- default_value__ ? "false" : "true", \
- no_helpstring__, NULL, this) \
+ Struct_no_##varname__() : option((dashes__ == options::DASH_Z \
+ ? "no" #varname__ \
+ : "no-" #varname__), \
+ dashes__, '\0', \
+ "false", \
+ no_helpstring__, NULL, false, this, \
+ false) \
{ } \
- \
+ \
void \
parse_to_value(const char*, const char*, \
- Command_line*, General_options* options) \
- { options->set_##varname__(false); } \
- \
+ Command_line*, General_options* options) \
+ { \
+ options->set_##varname__(false); \
+ options->set_user_set_##varname__(); \
+ } \
+ \
options::One_option option; \
}; \
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, default_value__) \
+ 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, \
+ !default_value__) \
+ { } \
+ \
+ 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_int(varname__, dashes__, shortname__, default_value__, \
+ helpstring__, helparg__) \
+ DEFINE_var(varname__, dashes__, shortname__, default_value__, \
+ #default_value__, helpstring__, helparg__, false, \
+ int, int, options::parse_int, false)
+
#define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \
- helpstring__, helparg__) \
+ helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- #default_value__, helpstring__, helparg__, \
- int, int, options::parse_uint)
+ #default_value__, helpstring__, helparg__, false, \
+ int, int, options::parse_uint, false)
#define DEFINE_uint64(varname__, dashes__, shortname__, default_value__, \
- helpstring__, helparg__) \
+ helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- #default_value__, helpstring__, helparg__, \
- uint64_t, uint64_t, options::parse_uint64)
+ #default_value__, helpstring__, helparg__, false, \
+ uint64_t, uint64_t, options::parse_uint64, false)
#define DEFINE_double(varname__, dashes__, shortname__, default_value__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- #default_value__, helpstring__, helparg__, \
- double, double, options::parse_double)
+ #default_value__, helpstring__, helparg__, false, \
+ double, double, options::parse_double, false)
+
+#define DEFINE_percent(varname__, dashes__, shortname__, default_value__, \
+ helpstring__, helparg__) \
+ DEFINE_var(varname__, dashes__, shortname__, default_value__ / 100.0, \
+ #default_value__, helpstring__, helparg__, false, \
+ double, double, options::parse_percent, false)
#define DEFINE_string(varname__, dashes__, shortname__, default_value__, \
- helpstring__, helparg__) \
+ helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- default_value__, helpstring__, helparg__, \
- const char*, const char*, options::parse_string)
+ default_value__, helpstring__, helparg__, false, \
+ const char*, const char*, options::parse_string, false)
// This is like DEFINE_string, but we convert each occurrence to a
// Search_directory and store it in a vector. Thus we also have the
// add_to_VARNAME() method, to append to the vector.
#define DEFINE_dirlist(varname__, dashes__, shortname__, \
- helpstring__, helparg__) \
+ helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, , \
- "", helpstring__, helparg__, options::Dir_list, \
- const options::Dir_list&, options::parse_dirlist) \
+ "", helpstring__, helparg__, false, options::Dir_list, \
+ const options::Dir_list&, options::parse_dirlist, false) \
void \
add_to_##varname__(const char* new_value) \
{ options::parse_dirlist(NULL, new_value, &this->varname__##_.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, false) \
+ 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(); } \
+ \
+ options::String_set::size_type \
+ varname__##_size() const \
+ { return this->varname__##_.value.size(); } \
+
// 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__, ...) \
+ helpstring__, helparg__, ...) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- default_value__, helpstring__, helparg__, \
- const char*, const char*, parse_choices_##varname__) \
+ default_value__, helpstring__, helparg__, false, \
+ const char*, const char*, parse_choices_##varname__, false) \
private: \
static void parse_choices_##varname__(const char* option_name, \
- const char* arg, \
- const char** retval) { \
+ const char* arg, \
+ const char** retval) { \
const char* choices[] = __VA_ARGS__; \
options::parse_choices(option_name, arg, retval, \
- choices, sizeof(choices) / sizeof(*choices)); \
+ 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, \
+ General_options::varname__##is_default ^ invert__) \
+ { } \
+ \
+ 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, \
+ !General_options::varname__##is_default ^ invert__) \
+ { } \
+ \
+ 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 like DEFINE_uint64, but VARNAME is the name of a different
+// option. This option becomes an alias for that one.
+#define DEFINE_uint64_alias(option__, varname__, dashes__, shortname__, \
+ helpstring__, helparg__) \
+ private: \
+ struct Struct_##option__ : public options::Struct_var \
+ { \
+ Struct_##option__() \
+ : option(#option__, dashes__, shortname__, "", helpstring__, \
+ helparg__, false, this, false) \
+ { } \
+ \
+ void \
+ parse_to_value(const char* option_name, const char* arg, \
+ Command_line*, General_options* options) \
+ { \
+ uint64_t value; \
+ options::parse_uint64(option_name, arg, &value); \
+ options->set_##varname__(value); \
+ options->set_user_set_##varname__(); \
+ } \
+ \
+ options::One_option option; \
+ }; \
+ Struct_##option__ option__##_;
+
// 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
// General_options; you are responsible for defining it there.
// helparg__ should be NULL iff this special-option is a boolean.
#define DEFINE_special(varname__, dashes__, shortname__, \
- helpstring__, helparg__) \
+ helpstring__, helparg__) \
private: \
void parse_##varname__(const char* option, const char* arg, \
- Command_line* inputs); \
+ Command_line* inputs); \
struct Struct_##varname__ : public options::Struct_special \
{ \
Struct_##varname__() \
: options::Struct_special(#varname__, dashes__, shortname__, \
- &General_options::parse_##varname__, \
- helpstring__, helparg__) \
+ &General_options::parse_##varname__, \
+ helpstring__, helparg__) \
{ } \
}; \
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, \
+ false)
// 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
{ }
// This is the usual constructor.
- Search_directory(const char* name, bool put_in_sysroot)
+ Search_directory(const std::string& name, bool put_in_sysroot)
: name_(name), put_in_sysroot_(put_in_sysroot), is_in_sysroot_(false)
{
if (this->name_.empty())
is_in_sysroot() const
{ return this->is_in_sysroot_; }
+ // Return whether this is considered a system directory.
+ bool
+ is_system_directory() const
+ { return this->put_in_sysroot_ || this->is_in_sysroot_; }
+
private:
+ // The directory name.
std::string name_;
+ // True if the sysroot should be added as a prefix for this
+ // directory (if there is a sysroot). This is true for system
+ // directories that we search by default.
bool put_in_sysroot_;
+ // True if this directory is in the sysroot (if there is a sysroot).
+ // This is true if there is a sysroot and either 1) put_in_sysroot_
+ // is true, or 2) the directory happens to be in the sysroot based
+ // on a pathname comparison.
bool is_in_sysroot_;
};
// NOTE: For every option that you add here, also consider if you
// should add it to Position_dependent_options.
DEFINE_special(help, options::TWO_DASHES, '\0',
- N_("Report usage information"), NULL);
+ N_("Report usage information"), NULL);
DEFINE_special(version, options::TWO_DASHES, 'v',
- N_("Report version information"), NULL);
+ 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
// alphabetical order). For both, lowercase sorts before uppercase.
// The -z options come last.
+ // a
+
+ DEFINE_bool(add_needed, options::TWO_DASHES, '\0', false,
+ N_("Not supported"),
+ N_("Do not copy DT_NEEDED tags from shared libraries"));
+
+ DEFINE_bool_alias(allow_multiple_definition, muldefs, options::TWO_DASHES,
+ '\0',
+ N_("Allow multiple definitions of symbols"),
+ N_("Do not allow multiple definitions"), false);
+
DEFINE_bool(allow_shlib_undefined, options::TWO_DASHES, '\0', false,
- N_("Allow unresolved references in shared libraries"),
- N_("Do not allow unresolved references in shared libraries"));
+ N_("Allow unresolved references in shared libraries"),
+ N_("Do not allow unresolved references in shared libraries"));
+
+ DEFINE_bool(apply_dynamic_relocs, options::TWO_DASHES, '\0', true,
+ N_("Apply link-time values for dynamic relocations"),
+ N_("(aarch64 only) Do not apply link-time values "
+ "for dynamic relocations"));
DEFINE_bool(as_needed, options::TWO_DASHES, '\0', false,
- N_("Only set DT_NEEDED for dynamic libs if used"),
- N_("Always DT_NEEDED for dynamic libs"));
+ N_("Use DT_NEEDED only for shared libraries that are used"),
+ N_("Use DT_NEEDED for all shared libraries"));
+
+ DEFINE_enum(assert, options::ONE_DASH, '\0', NULL,
+ N_("Ignored"), N_("[ignored]"),
+ {"definitions", "nodefinitions", "nosymbolic", "pure-text"});
+
+ // b
// This should really be an "enum", but it's too easy for folks to
// forget to update the list as they add new targets. So we just
// accept any string. We'll fail later (when the string is parsed),
// if the target isn't actually supported.
DEFINE_string(format, options::TWO_DASHES, 'b', "elf",
- N_("Set input format"), ("[elf,binary]"));
+ N_("Set input format"), ("[elf,binary]"));
+
+ DEFINE_bool(be8, options::TWO_DASHES, '\0', false,
+ N_("Output BE8 format image"), NULL);
+
+ DEFINE_optional_string(build_id, options::TWO_DASHES, '\0', "tree",
+ N_("Generate build ID note"),
+ N_("[=STYLE]"));
+
+ DEFINE_uint64(build_id_chunk_size_for_treehash,
+ options::TWO_DASHES, '\0', 2 << 20,
+ N_("Chunk size for '--build-id=tree'"), N_("SIZE"));
+
+ DEFINE_uint64(build_id_min_file_size_for_treehash, options::TWO_DASHES,
+ '\0', 40 << 20,
+ N_("Minimum output file size for '--build-id=tree' to work"
+ " differently than '--build-id=sha1'"), N_("SIZE"));
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);
+ N_("-l searches 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_alias(dy, Bdynamic, options::ONE_DASH, '\0',
+ N_("alias for -Bdynamic"), NULL, false);
+ DEFINE_bool_alias(dn, Bdynamic, options::ONE_DASH, '\0',
+ N_("alias for -Bstatic"), NULL, true);
+
+ DEFINE_bool(Bgroup, options::ONE_DASH, '\0', false,
+ N_("Use group name lookup rules for shared library"), NULL);
+
+ DEFINE_bool(Bshareable, options::ONE_DASH, '\0', false,
+ N_("Generate shared library (alias for -G/-shared)"), NULL);
DEFINE_bool(Bsymbolic, options::ONE_DASH, '\0', false,
- N_("Bind defined symbols locally"), NULL);
+ N_("Bind defined symbols locally"), NULL);
+
+ DEFINE_bool(Bsymbolic_functions, options::ONE_DASH, '\0', false,
+ N_("Bind defined function symbols locally"), NULL);
+
+ // c
+
+ DEFINE_bool(check_sections, options::TWO_DASHES, '\0', true,
+ N_("Check segment addresses for overlaps"),
+ N_("Do not check segment addresses for overlaps"));
-#ifdef HAVE_ZLIB_H
- DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none",
- N_("Compress .debug_* sections in the output file"),
- ("[none,zlib]"),
- {"none", "zlib"});
-#else
DEFINE_enum(compress_debug_sections, options::TWO_DASHES, '\0', "none",
- N_("Compress .debug_* sections in the output file"),
- N_("[none]"),
- {"none"});
-#endif
+ N_("Compress .debug_* sections in the output file"),
+ ("[none,zlib,zlib-gnu,zlib-gabi]"),
+ {"none", "zlib", "zlib-gnu", "zlib-gabi"});
+
+ DEFINE_bool(copy_dt_needed_entries, options::TWO_DASHES, '\0', false,
+ N_("Not supported"),
+ N_("Do not copy DT_NEEDED tags from shared libraries"));
+
+ DEFINE_bool(cref, options::TWO_DASHES, '\0', false,
+ N_("Output cross reference table"),
+ N_("Do not output cross reference table"));
+
+ DEFINE_bool(ctors_in_init_array, options::TWO_DASHES, '\0', true,
+ N_("Use DT_INIT_ARRAY for all constructors"),
+ N_("Handle constructors as directed by compiler"));
+
+ // d
DEFINE_bool(define_common, options::TWO_DASHES, 'd', false,
- N_("Define common symbols"),
- N_("Do not define common symbols"));
+ N_("Define common symbols"),
+ N_("Do not define common symbols in relocatable output"));
DEFINE_bool(dc, options::ONE_DASH, '\0', false,
- N_("Alias for -d"), NULL);
+ N_("Alias for -d"), NULL);
DEFINE_bool(dp, options::ONE_DASH, '\0', false,
- N_("Alias for -d"), NULL);
+ 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"));
+ 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"),
- NULL);
+ N_("Look for violations of the C++ One Definition Rule"),
+ N_("Do not look for violations of the C++ One Definition Rule"));
+
+ DEFINE_bool(dynamic_list_data, options::TWO_DASHES, '\0', false,
+ N_("Add data symbols to dynamic symbols"), NULL);
+
+ DEFINE_bool(dynamic_list_cpp_new, options::TWO_DASHES, '\0', false,
+ N_("Add C++ operator new/delete to dynamic symbols"), NULL);
+
+ DEFINE_bool(dynamic_list_cpp_typeinfo, options::TWO_DASHES, '\0', false,
+ N_("Add C++ typeinfo to dynamic symbols"), NULL);
+
+ DEFINE_special(dynamic_list, options::TWO_DASHES, '\0',
+ N_("Read a list of dynamic symbols"), N_("FILE"));
+
+ // e
+
+ DEFINE_bool(emit_stub_syms, options::TWO_DASHES, '\0', true,
+ N_("(PowerPC only) Label linker stubs with a symbol"),
+ N_("(PowerPC only) Do not label linker stubs with a symbol"));
DEFINE_string(entry, options::TWO_DASHES, 'e', NULL,
- N_("Set program start address"), N_("ADDRESS"));
+ N_("Set program start address"), N_("ADDRESS"));
+
+ DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false,
+ N_("Create exception frame header"),
+ N_("Do not create exception frame header"));
+
+ // Alphabetized under 'e' because the option is spelled --enable-new-dtags.
+ DEFINE_enable(new_dtags, options::EXACTLY_TWO_DASHES, '\0', true,
+ N_("Enable use of DT_RUNPATH"),
+ N_("Disable use of DT_RUNPATH"));
+
+ DEFINE_bool(enum_size_warning, options::TWO_DASHES, '\0', true, NULL,
+ N_("(ARM only) Do not warn about objects with incompatible "
+ "enum sizes"));
+
+ DEFINE_special(exclude_libs, options::TWO_DASHES, '\0',
+ N_("Exclude libraries from automatic export"),
+ N_(("lib,lib ...")));
DEFINE_bool(export_dynamic, options::TWO_DASHES, 'E', false,
- N_("Export all dynamic symbols"), NULL);
+ N_("Export all dynamic symbols"),
+ N_("Do not export all dynamic symbols"));
- DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false,
- N_("Create exception frame header"), NULL);
+ DEFINE_set(export_dynamic_symbol, options::TWO_DASHES, '\0',
+ N_("Export SYMBOL to dynamic symbol table"), N_("SYMBOL"));
+
+ DEFINE_special(EB, options::ONE_DASH, '\0',
+ N_("Link big-endian objects."), NULL);
+ DEFINE_special(EL, options::ONE_DASH, '\0',
+ N_("Link little-endian objects."), NULL);
+
+ // f
+
+ DEFINE_set(auxiliary, options::TWO_DASHES, 'f',
+ N_("Auxiliary filter for shared object symbol table"),
+ N_("SHLIB"));
+
+ DEFINE_string(filter, options::TWO_DASHES, 'F', NULL,
+ N_("Filter for shared object symbol table"),
+ N_("SHLIB"));
+
+ DEFINE_bool(fatal_warnings, options::TWO_DASHES, '\0', false,
+ N_("Treat warnings as errors"),
+ N_("Do not treat warnings as errors"));
+
+ DEFINE_string(fini, options::ONE_DASH, '\0', "_fini",
+ N_("Call SYMBOL at unload-time"), N_("SYMBOL"));
+
+ DEFINE_bool(fix_arm1176, options::TWO_DASHES, '\0', true,
+ N_("(ARM only) Fix binaries for ARM1176 erratum"),
+ N_("(ARM only) Do not fix binaries for ARM1176 erratum"));
+
+ DEFINE_bool(fix_cortex_a8, options::TWO_DASHES, '\0', false,
+ N_("(ARM only) Fix binaries for Cortex-A8 erratum"),
+ N_("(ARM only) Do not fix binaries for Cortex-A8 erratum"));
+
+ DEFINE_bool(fix_cortex_a53_843419, options::TWO_DASHES, '\0', false,
+ N_("(AArch64 only) Fix Cortex-A53 erratum 843419"),
+ N_("(AArch64 only) Do not fix Cortex-A53 erratum 843419"));
+
+ DEFINE_bool(fix_cortex_a53_835769, options::TWO_DASHES, '\0', false,
+ N_("(AArch64 only) Fix Cortex-A53 erratum 835769"),
+ N_("(AArch64 only) Do not fix Cortex-A53 erratum 835769"));
+
+ DEFINE_special(fix_v4bx, options::TWO_DASHES, '\0',
+ N_("(ARM only) Rewrite BX rn as MOV pc, rn for ARMv4"),
+ NULL);
+
+ DEFINE_special(fix_v4bx_interworking, options::TWO_DASHES, '\0',
+ N_("(ARM only) Rewrite BX rn branch to ARMv4 interworking "
+ "veneer"),
+ NULL);
+
+ DEFINE_string(fuse_ld, options::ONE_DASH, '\0', "",
+ N_("Ignored for GCC linker option compatibility"),
+ N_("[gold,bfd]"));
+
+ // g
+
+ DEFINE_bool(g, options::EXACTLY_ONE_DASH, '\0', false,
+ N_("Ignored"), NULL);
+
+ DEFINE_bool(gc_sections, options::TWO_DASHES, '\0', false,
+ N_("Remove unused sections"),
+ N_("Don't remove unused sections"));
+
+ DEFINE_bool(gdb_index, options::TWO_DASHES, '\0', false,
+ N_("Generate .gdb_index section"),
+ N_("Do not generate .gdb_index section"));
+
+ DEFINE_bool(gnu_unique, options::TWO_DASHES, '\0', true,
+ N_("Enable STB_GNU_UNIQUE symbol binding"),
+ N_("Disable STB_GNU_UNIQUE symbol binding"));
+
+ DEFINE_bool(shared, options::ONE_DASH, 'G', false,
+ N_("Generate shared library"), NULL);
+
+ // h
DEFINE_string(soname, options::ONE_DASH, 'h', NULL,
- N_("Set shared library name"), N_("FILENAME"));
+ N_("Set shared library name"), N_("FILENAME"));
DEFINE_double(hash_bucket_empty_fraction, options::TWO_DASHES, '\0', 0.0,
N_("Min fraction of empty buckets in dynamic hash"),
N_("FRACTION"));
- DEFINE_enum(hash_style, options::TWO_DASHES, '\0', "sysv",
+ DEFINE_enum(hash_style, options::TWO_DASHES, '\0', DEFAULT_HASH_STYLE,
N_("Dynamic hash style"), N_("[sysv,gnu,both]"),
{"sysv", "gnu", "both"});
+ // i
+
+ DEFINE_bool_alias(i, relocatable, options::EXACTLY_ONE_DASH, '\0',
+ N_("Alias for -r"), NULL, false);
+
+ DEFINE_enum(icf, options::TWO_DASHES, '\0', "none",
+ N_("Identical Code Folding. "
+ "\'--icf=safe\' Folds ctors, dtors and functions whose"
+ " pointers are definitely not taken"),
+ ("[none,all,safe]"),
+ {"none", "all", "safe"});
+
+ DEFINE_uint(icf_iterations, options::TWO_DASHES , '\0', 0,
+ N_("Number of iterations of ICF (default 3)"), N_("COUNT"));
+
+ DEFINE_special(incremental, options::TWO_DASHES, '\0',
+ N_("Do an incremental link if possible; "
+ "otherwise, do a full link and prepare output "
+ "for incremental linking"), NULL);
+
+ DEFINE_special(no_incremental, options::TWO_DASHES, '\0',
+ N_("Do a full link (default)"), NULL);
+
+ DEFINE_special(incremental_full, options::TWO_DASHES, '\0',
+ N_("Do a full link and "
+ "prepare output for incremental linking"), NULL);
+
+ DEFINE_special(incremental_update, options::TWO_DASHES, '\0',
+ N_("Do an incremental link; exit if not possible"), NULL);
+
+ DEFINE_string(incremental_base, options::TWO_DASHES, '\0', NULL,
+ N_("Set base file for incremental linking"
+ " (default is output file)"),
+ N_("FILE"));
+
+ DEFINE_special(incremental_changed, options::TWO_DASHES, '\0',
+ N_("Assume files changed"), NULL);
+
+ DEFINE_special(incremental_unchanged, options::TWO_DASHES, '\0',
+ N_("Assume files didn't change"), NULL);
+
+ DEFINE_special(incremental_unknown, options::TWO_DASHES, '\0',
+ N_("Use timestamps to check files (default)"), NULL);
+
+ DEFINE_special(incremental_startup_unchanged, options::TWO_DASHES, '\0',
+ N_("Assume startup files unchanged "
+ "(files preceding this option)"), NULL);
+
+ DEFINE_percent(incremental_patch, options::TWO_DASHES, '\0', 10,
+ N_("Amount of extra space to allocate for patches "
+ "(default 10)"),
+ N_("PERCENT"));
+
+ DEFINE_string(init, options::ONE_DASH, '\0', "_init",
+ N_("Call SYMBOL at load-time"), N_("SYMBOL"));
+
DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL,
- N_("Set dynamic linker path"), N_("PROGRAM"));
+ N_("Set dynamic linker path"), N_("PROGRAM"));
+
+ // j
DEFINE_special(just_symbols, options::TWO_DASHES, '\0',
- N_("Read only symbol values from FILE"), N_("FILE"));
+ N_("Read only symbol values from FILE"), N_("FILE"));
+
+ // k
+
+ DEFINE_bool(keep_files_mapped, options::TWO_DASHES, '\0', true,
+ N_("Keep files mapped across passes"),
+ N_("Release mapped files after each pass"));
+
+ DEFINE_set(keep_unique, options::TWO_DASHES, '\0',
+ N_("Do not fold this symbol during ICF"), N_("SYMBOL"));
+
+ // l
DEFINE_special(library, options::TWO_DASHES, 'l',
- N_("Search for library LIBNAME"), N_("LIBNAME"));
+ N_("Search for library LIBNAME"), N_("LIBNAME"));
+
+ DEFINE_bool(ld_generated_unwind_info, options::TWO_DASHES, '\0', true,
+ N_("Generate unwind information for PLT"),
+ N_("Do not generate unwind information for PLT"));
DEFINE_dirlist(library_path, options::TWO_DASHES, 'L',
- N_("Add directory to search path"), N_("DIR"));
+ N_("Add directory to search path"), N_("DIR"));
+
+ DEFINE_bool(long_plt, options::TWO_DASHES, '\0', false,
+ N_("(ARM only) Generate long PLT entries"),
+ N_("(ARM only) Do not generate long PLT entries"));
+
+ // m
DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "",
- N_("Ignored for compatibility"), N_("EMULATION"));
+ N_("Set GNU linker emulation; obsolete"), N_("EMULATION"));
- DEFINE_string(output, options::TWO_DASHES, 'o', "a.out",
- N_("Set output file name"), N_("FILE"));
+ DEFINE_bool(map_whole_files, options::TWO_DASHES, '\0',
+ sizeof(void*) >= 8,
+ N_("Map whole files to memory"),
+ N_("Map relevant file parts to memory"));
- DEFINE_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0,
- N_("Optimize output file size"), N_("LEVEL"));
+ DEFINE_bool(merge_exidx_entries, options::TWO_DASHES, '\0', true,
+ N_("(ARM only) Merge exidx entries in debuginfo"),
+ N_("(ARM only) Do not merge exidx entries in debuginfo"));
+
+ DEFINE_bool(mmap_output_file, options::TWO_DASHES, '\0', true,
+ N_("Map the output file for writing"),
+ N_("Do not map the output file for writing"));
+
+ 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"));
+
+ // n
+
+ DEFINE_bool(nmagic, options::TWO_DASHES, 'n', false,
+ N_("Do not page align data"), NULL);
+ DEFINE_bool(omagic, options::EXACTLY_TWO_DASHES, 'N', false,
+ N_("Do not page align data, do not make text readonly"),
+ N_("Page align data, make text readonly"));
+
+ DEFINE_bool(no_keep_memory, options::TWO_DASHES, '\0', false,
+ N_("Use less memory and more disk I/O "
+ "(included only for compatibility with GNU ld)"), NULL);
+
+ DEFINE_bool_alias(no_undefined, defs, options::TWO_DASHES, '\0',
+ N_("Report undefined symbols (even with --shared)"),
+ NULL, false);
+
+ DEFINE_bool(noinhibit_exec, options::TWO_DASHES, '\0', false,
+ N_("Create an output file even if errors occur"), NULL);
+
+ DEFINE_bool(nostdlib, options::ONE_DASH, '\0', false,
+ N_("Only search directories specified on the command line"),
+ NULL);
+
+ // o
+
+ 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_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0,
+ N_("Optimize output file size"), N_("LEVEL"));
+
+ DEFINE_enum(orphan_handling, options::TWO_DASHES, '\0', "place",
+ N_("Orphan section handling"), N_("[place,discard,warn,error]"),
+ {"place", "discard", "warn", "error"});
+
+ // p
+
+ DEFINE_bool(p, options::ONE_DASH, 'p', false,
+ N_("Ignored for ARM compatibility"), NULL);
+
+ DEFINE_bool(pie, options::ONE_DASH, '\0', false,
+ N_("Create a position independent executable"),
+ N_("Do not create a position independent executable"));
+ DEFINE_bool_alias(pic_executable, pie, options::TWO_DASHES, '\0',
+ N_("Create a position independent executable"),
+ N_("Do not create a position independent executable"),
+ false);
+
+ DEFINE_bool(pic_veneer, options::TWO_DASHES, '\0', false,
+ N_("Force PIC sequences for ARM/Thumb interworking veneers"),
+ NULL);
+
+ DEFINE_bool(pipeline_knowledge, options::ONE_DASH, '\0', false,
+ NULL, N_("(ARM only) Ignore for backward compatibility"));
+
+ DEFINE_var(plt_align, options::TWO_DASHES, '\0', 0, "5",
+ N_("(PowerPC only) Align PLT call stubs to fit cache lines"),
+ N_("[=P2ALIGN]"), true, int, int, options::parse_uint, false);
+
+ DEFINE_bool(plt_localentry, options::TWO_DASHES, '\0', false,
+ N_("(PowerPC64 only) Optimize calls to ELFv2 localentry:0 functions"),
+ N_("(PowerPC64 only) Don't optimize ELFv2 calls"));
+
+ DEFINE_bool(plt_static_chain, options::TWO_DASHES, '\0', false,
+ N_("(PowerPC64 only) PLT call stubs should load r11"),
+ N_("(PowerPC64 only) PLT call stubs should not load r11"));
+
+ DEFINE_bool(plt_thread_safe, options::TWO_DASHES, '\0', false,
+ N_("(PowerPC64 only) PLT call stubs with load-load barrier"),
+ N_("(PowerPC64 only) PLT call stubs without barrier"));
+
+#ifdef ENABLE_PLUGINS
+ DEFINE_special(plugin, options::TWO_DASHES, '\0',
+ N_("Load a plugin library"), N_("PLUGIN"));
+ DEFINE_special(plugin_opt, options::TWO_DASHES, '\0',
+ N_("Pass an option to the plugin"), N_("OPTION"));
+#else
+ DEFINE_special(plugin, options::TWO_DASHES, '\0',
+ N_("Load a plugin library (not supported)"), N_("PLUGIN"));
+ DEFINE_special(plugin_opt, options::TWO_DASHES, '\0',
+ N_("Pass an option to the plugin (not supported)"),
+ N_("OPTION"));
+#endif
+
+ DEFINE_bool(posix_fallocate, options::TWO_DASHES, '\0', true,
+ N_("Use posix_fallocate to reserve space in the output file"),
+ N_("Use fallocate or ftruncate to reserve space"));
+
+ DEFINE_bool(preread_archive_symbols, options::TWO_DASHES, '\0', false,
+ N_("Preread archive symbols when multi-threaded"), NULL);
+
+ DEFINE_bool(print_gc_sections, options::TWO_DASHES, '\0', false,
+ N_("List removed unused sections on stderr"),
+ N_("Do not list removed unused sections"));
+
+ DEFINE_bool(print_icf_sections, options::TWO_DASHES, '\0', false,
+ N_("List folded identical sections on stderr"),
+ N_("Do not list folded identical sections"));
+
+ DEFINE_bool(print_output_format, options::TWO_DASHES, '\0', false,
+ N_("Print default output format"), NULL);
+
+ DEFINE_string(print_symbol_counts, options::TWO_DASHES, '\0', NULL,
+ N_("Print symbols defined and used for each input"),
+ N_("FILENAME"));
+
+ DEFINE_special(push_state, options::TWO_DASHES, '\0',
+ N_("Save the state of flags related to input files"), NULL);
+ DEFINE_special(pop_state, options::TWO_DASHES, '\0',
+ N_("Restore the state of flags related to input files"), NULL);
+
+ // q
+
DEFINE_bool(emit_relocs, options::TWO_DASHES, 'q', false,
- N_("Generate relocations in output"), NULL);
+ N_("Generate relocations in output"), NULL);
+
+ DEFINE_bool(Qy, options::EXACTLY_ONE_DASH, '\0', false,
+ N_("Ignored for SVR4 compatibility"), NULL);
+
+ // r
DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false,
- N_("Generate relocatable output"), NULL);
+ N_("Generate relocatable output"), NULL);
+
+ DEFINE_bool(relax, options::TWO_DASHES, '\0', false,
+ N_("Relax branches on certain targets"),
+ N_("Do not relax branches"));
+
+ DEFINE_string(retain_symbols_file, options::TWO_DASHES, '\0', NULL,
+ N_("keep only symbols listed in this file"), N_("FILE"));
+
+ DEFINE_bool(rosegment, options::TWO_DASHES, '\0', false,
+ N_("Put read-only non-executable sections in their own segment"),
+ NULL);
+
+ DEFINE_uint64(rosegment_gap, options::TWO_DASHES, '\0', -1U,
+ N_("Set offset between executable and read-only segments"),
+ N_("OFFSET"));
// -R really means -rpath, but can mean --just-symbols for
// compatibility with GNU ld. -rpath is always -rpath, so we list
// it separately.
DEFINE_special(R, options::EXACTLY_ONE_DASH, 'R',
- N_("Add DIR to runtime search path"), N_("DIR"));
+ N_("Add DIR to runtime search path"), N_("DIR"));
DEFINE_dirlist(rpath, options::ONE_DASH, '\0',
- N_("Add DIR to runtime search path"), N_("DIR"));
+ N_("Add DIR to runtime search path"), N_("DIR"));
DEFINE_dirlist(rpath_link, options::TWO_DASHES, '\0',
- N_("Add DIR to link time shared library search path"),
- N_("DIR"));
+ N_("Add DIR to link time shared library search path"),
+ N_("DIR"));
+
+ // s
DEFINE_bool(strip_all, options::TWO_DASHES, 's', false,
- N_("Strip all symbols"), NULL);
+ N_("Strip all symbols"), NULL);
DEFINE_bool(strip_debug, options::TWO_DASHES, 'S', false,
- N_("Strip debugging information"), NULL);
+ 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_bool(shared, options::ONE_DASH, '\0', false,
- N_("Generate shared library"), NULL);
+ N_("Strip debug symbols that are unused by gdb "
+ "(at least versions <= 7.4)"), NULL);
+ DEFINE_bool(strip_lto_sections, options::TWO_DASHES, '\0', true,
+ N_("Strip LTO intermediate code sections"), NULL);
+
+ DEFINE_string(section_ordering_file, options::TWO_DASHES, '\0', NULL,
+ N_("Layout sections in the order specified"),
+ N_("FILENAME"));
+
+ DEFINE_special(section_start, options::TWO_DASHES, '\0',
+ N_("Set address of section"), N_("SECTION=ADDRESS"));
+
+ DEFINE_bool(secure_plt, options::TWO_DASHES , '\0', true,
+ N_("(PowerPC only) Use new-style PLT"), NULL);
+
+ DEFINE_optional_string(sort_common, options::TWO_DASHES, '\0', NULL,
+ N_("Sort common symbols by alignment"),
+ N_("[={ascending,descending}]"));
+
+ DEFINE_enum(sort_section, options::TWO_DASHES, '\0', "none",
+ N_("Sort sections by name. \'--no-text-reorder\'"
+ " will override \'--sort-section=name\' for .text"),
+ N_("[none,name]"),
+ {"none", "name"});
+
+ DEFINE_uint(spare_dynamic_tags, options::TWO_DASHES, '\0', 5,
+ N_("Dynamic tag slots to reserve (default 5)"),
+ N_("COUNT"));
+
+ DEFINE_int(stub_group_size, options::TWO_DASHES , '\0', 1,
+ N_("(ARM, PowerPC only) The maximum distance from instructions "
+ "in a group of sections to their stubs. Negative values mean "
+ "stubs are always after the group. 1 means use default size"),
+ N_("SIZE"));
+
+ DEFINE_bool(stub_group_multi, options::TWO_DASHES, '\0', true,
+ N_("(PowerPC only) Allow a group of stubs to serve multiple "
+ "output sections"),
+ N_("(PowerPC only) Each output section has its own stubs"));
+
+ DEFINE_uint(split_stack_adjust_size, options::TWO_DASHES, '\0', 0x4000,
+ N_("Stack size when -fsplit-stack function calls non-split"),
+ N_("SIZE"));
// This is not actually special in any way, but I need to give it
// a non-standard accessor-function name because 'static' is a keyword.
DEFINE_special(static, options::ONE_DASH, '\0',
- N_("Do not link against shared libraries"), NULL);
+ N_("Do not link against shared libraries"), NULL);
+
+ DEFINE_special(start_lib, options::TWO_DASHES, '\0',
+ N_("Start a library"), NULL);
+ DEFINE_special(end_lib, options::TWO_DASHES, '\0',
+ N_("End a library "), NULL);
DEFINE_bool(stats, options::TWO_DASHES, '\0', false,
- N_("Print resource usage statistics"), NULL);
+ N_("Print resource usage statistics"), NULL);
DEFINE_string(sysroot, options::TWO_DASHES, '\0', "",
- N_("Set target system root directory"), N_("DIR"));
+ N_("Set target system root directory"), N_("DIR"));
- DEFINE_special(script, options::TWO_DASHES, 'T',
- N_("Read linker script"), N_("FILE"));
+ // t
+
+ DEFINE_bool(trace, options::TWO_DASHES, 't', false,
+ N_("Print the name of each input file"), NULL);
+
+ DEFINE_bool(target1_abs, options::TWO_DASHES, '\0', false,
+ N_("(ARM only) Force R_ARM_TARGET1 type to R_ARM_ABS32"),
+ NULL);
+ DEFINE_bool(target1_rel, options::TWO_DASHES, '\0', false,
+ N_("(ARM only) Force R_ARM_TARGET1 type to R_ARM_REL32"),
+ NULL);
+ DEFINE_enum(target2, options::TWO_DASHES, '\0', NULL,
+ N_("(ARM only) Set R_ARM_TARGET2 relocation type"),
+ N_("[rel, abs, got-rel"),
+ {"rel", "abs", "got-rel"});
+
+ DEFINE_bool(text_reorder, options::TWO_DASHES, '\0', true,
+ N_("Enable text section reordering for GCC section names"),
+ N_("Disable text section reordering for GCC section names"));
DEFINE_bool(threads, options::TWO_DASHES, '\0', false,
- N_("Run the linker multi-threaded"),
- N_("Do not run the linker multi-threaded"));
+ N_("Run the linker multi-threaded"),
+ N_("Do not run the linker multi-threaded"));
DEFINE_uint(thread_count, options::TWO_DASHES, '\0', 0,
- N_("Number of threads to use"), N_("COUNT"));
+ N_("Number of threads to use"), N_("COUNT"));
DEFINE_uint(thread_count_initial, options::TWO_DASHES, '\0', 0,
- N_("Number of threads to use in initial pass"), N_("COUNT"));
+ N_("Number of threads to use in initial pass"), N_("COUNT"));
DEFINE_uint(thread_count_middle, options::TWO_DASHES, '\0', 0,
- N_("Number of threads to use in middle pass"), N_("COUNT"));
+ N_("Number of threads to use in middle pass"), N_("COUNT"));
DEFINE_uint(thread_count_final, options::TWO_DASHES, '\0', 0,
- N_("Number of threads to use in final pass"), N_("COUNT"));
+ N_("Number of threads to use in final pass"), N_("COUNT"));
+
+ DEFINE_bool(tls_optimize, options::TWO_DASHES, '\0', true,
+ N_("(PowerPC/64 only) Optimize GD/LD/IE code to IE/LE"),
+ N_("(PowerPC/64 only) Don'\''t try to optimize TLS accesses"));
+ DEFINE_bool(tls_get_addr_optimize, options::TWO_DASHES, '\0', true,
+ N_("(PowerPC/64 only) Use a special __tls_get_addr call"),
+ N_("(PowerPC/64 only) Don't use a special __tls_get_addr call"));
+
+ DEFINE_bool(toc_optimize, options::TWO_DASHES, '\0', true,
+ N_("(PowerPC64 only) Optimize TOC code sequences"),
+ N_("(PowerPC64 only) Don't optimize TOC code sequences"));
+
+ DEFINE_bool(toc_sort, options::TWO_DASHES, '\0', true,
+ N_("(PowerPC64 only) Sort TOC and GOT sections"),
+ N_("(PowerPC64 only) Don't sort TOC and GOT sections"));
+
+ DEFINE_special(script, options::TWO_DASHES, 'T',
+ N_("Read linker script"), N_("FILE"));
DEFINE_uint64(Tbss, options::ONE_DASH, '\0', -1U,
- N_("Set the address of the bss segment"), N_("ADDRESS"));
+ N_("Set the address of the bss segment"), N_("ADDRESS"));
DEFINE_uint64(Tdata, options::ONE_DASH, '\0', -1U,
- N_("Set the address of the data segment"), N_("ADDRESS"));
+ N_("Set the address of the data segment"), N_("ADDRESS"));
DEFINE_uint64(Ttext, options::ONE_DASH, '\0', -1U,
- N_("Set the address of the text segment"), N_("ADDRESS"));
+ N_("Set the address of the text segment"), N_("ADDRESS"));
+ DEFINE_uint64_alias(Ttext_segment, Ttext, options::ONE_DASH, '\0',
+ N_("Set the address of the text segment"),
+ N_("ADDRESS"));
+ DEFINE_uint64(Trodata_segment, options::ONE_DASH, '\0', -1U,
+ N_("Set the address of the rodata segment"), N_("ADDRESS"));
+
+ // u
+
+ DEFINE_set(undefined, options::TWO_DASHES, 'u',
+ N_("Create undefined reference to SYMBOL"), N_("SYMBOL"));
+
+ DEFINE_enum(unresolved_symbols, options::TWO_DASHES, '\0', NULL,
+ N_("How to handle unresolved symbols"),
+ ("ignore-all,report-all,ignore-in-object-files,"
+ "ignore-in-shared-libs"),
+ {"ignore-all", "report-all", "ignore-in-object-files",
+ "ignore-in-shared-libs"});
+
+ // v
+
+ DEFINE_bool(verbose, options::TWO_DASHES, '\0', false,
+ N_("Alias for --debug=files"), NULL);
DEFINE_special(version_script, options::TWO_DASHES, '\0',
- N_("Read version script"), N_("FILE"));
+ N_("Read version script"), N_("FILE"));
+
+ // w
+
+ DEFINE_bool(warn_common, options::TWO_DASHES, '\0', false,
+ N_("Warn about duplicate common symbols"),
+ N_("Do not warn about duplicate common symbols"));
+
+ DEFINE_bool_ignore(warn_constructors, options::TWO_DASHES, '\0',
+ N_("Ignored"), N_("Ignored"));
+
+ DEFINE_bool(warn_drop_version, options::TWO_DASHES, '\0', false,
+ N_("Warn when discarding version information"),
+ N_("Do not warn when discarding version information"));
+
+ DEFINE_bool(warn_execstack, options::TWO_DASHES, '\0', false,
+ N_("Warn if the stack is executable"),
+ N_("Do not warn if the stack is executable"));
+
+ DEFINE_bool(warn_mismatch, options::TWO_DASHES, '\0', true,
+ NULL, N_("Don't warn about mismatched input files"));
+
+ DEFINE_bool(warn_multiple_gp, options::TWO_DASHES, '\0', false,
+ N_("Ignored"), NULL);
+
+ DEFINE_bool(warn_search_mismatch, options::TWO_DASHES, '\0', true,
+ N_("Warn when skipping an incompatible library"),
+ N_("Don't warn when skipping an incompatible library"));
+
+ DEFINE_bool(warn_shared_textrel, options::TWO_DASHES, '\0', false,
+ N_("Warn if text segment is not shareable"),
+ N_("Do not warn if text segment is not shareable"));
+
+ DEFINE_bool(warn_unresolved_symbols, options::TWO_DASHES, '\0', false,
+ N_("Report unresolved symbols as warnings"),
+ NULL);
+ DEFINE_bool_alias(error_unresolved_symbols, warn_unresolved_symbols,
+ options::TWO_DASHES, '\0',
+ N_("Report unresolved symbols as errors"),
+ NULL, true);
+
+ DEFINE_bool(wchar_size_warning, options::TWO_DASHES, '\0', true, NULL,
+ N_("(ARM only) Do not warn about objects with incompatible "
+ "wchar_t sizes"));
+
+ DEFINE_bool(weak_unresolved_symbols, options::TWO_DASHES, '\0', false,
+ N_("Convert unresolved symbols to weak references"),
+ NULL);
DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false,
- N_("Include all archive contents"),
- N_("Include only needed archive contents"));
+ 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"));
+
+ // x
+
+ DEFINE_special(discard_all, options::TWO_DASHES, 'x',
+ N_("Delete all local symbols"), NULL);
+ DEFINE_special(discard_locals, options::TWO_DASHES, 'X',
+ N_("Delete all temporary local symbols"), NULL);
+ DEFINE_special(discard_none, options::TWO_DASHES, '\0',
+ N_("Keep all local symbols"), NULL);
+
+ // y
+
+ DEFINE_set(trace_symbol, options::TWO_DASHES, 'y',
+ N_("Trace references to symbol"), N_("SYMBOL"));
+
+ DEFINE_bool(undefined_version, options::TWO_DASHES, '\0', true,
+ N_("Allow unused version in script"),
+ N_("Do not allow unused version in script"));
+
+ DEFINE_string(Y, options::EXACTLY_ONE_DASH, 'Y', "",
+ N_("Default search path for Solaris compatibility"),
+ N_("PATH"));
+
+ // special characters
DEFINE_special(start_group, options::TWO_DASHES, '(',
- N_("Start a library search group"), NULL);
+ N_("Start a library search group"), NULL);
DEFINE_special(end_group, options::TWO_DASHES, ')',
- N_("End a library search group"), NULL);
+ N_("End a library search group"), NULL);
// The -z options.
- // Both execstack and noexecstack differ from the default execstack_
- // value, so we need to use different variables for them.
+ DEFINE_bool(bndplt, options::DASH_Z, '\0', false,
+ N_("(x86-64 only) Generate a BND PLT for Intel MPX"),
+ N_("Generate a regular PLT"));
+ 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"));
+ 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);
+ N_("Mark output as requiring executable stack"), NULL);
+ DEFINE_bool(global, options::DASH_Z, '\0', false,
+ N_("Make symbols in DSO available for subsequently loaded "
+ "objects"), 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_alias(lazy, now, options::DASH_Z, '\0',
+ N_("Mark object for lazy runtime binding"),
+ NULL, true);
+ DEFINE_bool(loadfltr, options::DASH_Z, '\0', false,
+ N_("Mark object requiring immediate process"),
+ NULL);
DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0,
- N_("Set maximum page size to SIZE"), N_("SIZE"));
+ N_("Set maximum page size to SIZE"), N_("SIZE"));
+ DEFINE_bool(muldefs, options::DASH_Z, '\0', false,
+ N_("Allow multiple definitions of symbols"),
+ NULL);
+ // copyreloc is here in the list because there is only -z
+ // nocopyreloc, not -z copyreloc.
+ DEFINE_bool(copyreloc, options::DASH_Z, '\0', true,
+ NULL,
+ N_("Do not create copy relocs"));
+ 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(noexecstack, options::DASH_Z, '\0', false,
- N_("Mark output as not requiring executable stack"), NULL);
+ N_("Mark output as not requiring executable stack"), NULL);
+ DEFINE_bool(now, options::DASH_Z, '\0', false,
+ N_("Mark object for immediate function binding"),
+ NULL);
+ DEFINE_bool(origin, options::DASH_Z, '\0', false,
+ N_("Mark DSO to indicate that needs immediate $ORIGIN "
+ "processing at runtime"), NULL);
+ DEFINE_bool(relro, options::DASH_Z, '\0', DEFAULT_LD_Z_RELRO,
+ N_("Where possible mark variables read-only after relocation"),
+ N_("Don't mark variables read-only after relocation"));
+ DEFINE_uint64(stack_size, options::DASH_Z, '\0', 0,
+ N_("Set PT_GNU_STACK segment p_memsz to SIZE"), N_("SIZE"));
+ DEFINE_bool(text, options::DASH_Z, '\0', false,
+ N_("Do not permit relocations in read-only segments"),
+ N_("Permit relocations in read-only segments"));
+ DEFINE_bool_alias(textoff, text, options::DASH_Z, '\0',
+ N_("Permit relocations in read-only segments"),
+ NULL, true);
+ DEFINE_bool(text_unlikely_segment, options::DASH_Z, '\0', false,
+ N_("Move .text.unlikely sections to a separate segment."),
+ N_("Do not move .text.unlikely sections to a separate "
+ "segment."));
+ DEFINE_bool(keep_text_section_prefix, options::DASH_Z, '\0', false,
+ N_("Keep .text.hot, .text.startup, .text.exit and .text.unlikely "
+ "as separate sections in the final binary."),
+ N_("Merge all .text.* prefix sections."));
+
public:
typedef options::Dir_list Dir_list;
// any problems.
void finalize();
+ // True if we printed the version information.
+ bool
+ printed_version() const
+ { return this->printed_version_; }
+
// The macro defines output() (based on --output), but that's a
// generic name. Provide this alternative name, which is clearer.
const char*
// the output is position-independent or not.
bool
output_is_position_independent() const
- { return this->shared(); }
+ { return this->shared() || this->pie(); }
+
+ // Return true if the output is something that can be exec()ed, such
+ // as a static executable, or a position-dependent or
+ // position-independent executable, but not a dynamic library or an
+ // object file.
+ bool
+ output_is_executable() const
+ { return !this->shared() && !this->relocatable(); }
// This would normally be static(), and defined automatically, but
// since static is a keyword, we need to come up with our own name.
OBJECT_FORMAT_BINARY
};
+ // Convert a string to an Object_format. Gives an error if the
+ // string is not recognized.
+ static Object_format
+ string_to_object_format(const char* arg);
+
+ // Convert an Object_format to string.
+ static const char*
+ object_format_to_string(Object_format);
+
// Note: these functions are not very fast.
Object_format format_enum() const;
Object_format oformat_enum() const;
+ // Return whether FILENAME is in a system directory.
+ bool
+ is_in_system_directory(const std::string& name) const;
+
+ // RETURN whether SYMBOL_NAME should be kept, according to symbols_to_retain_.
+ bool
+ should_retain_symbol(const char* symbol_name) const
+ {
+ if (symbols_to_retain_.empty()) // means flag wasn't specified
+ return true;
+ return symbols_to_retain_.find(symbol_name) != symbols_to_retain_.end();
+ }
+
// These are the best way to get access to the execstack state,
// not execstack() and noexecstack() which are hard to use properly.
bool
is_stack_executable() const
{ return this->execstack_status_ == EXECSTACK_YES; }
+ bool
+ icf_enabled() const
+ { return this->icf_status_ != ICF_NONE; }
+
+ bool
+ icf_safe_folding() const
+ { return this->icf_status_ == ICF_SAFE; }
+
+ // 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_; }
+
+ // Returns TRUE if any plugin libraries have been loaded.
+ bool
+ has_plugins() const
+ { return this->plugins_ != NULL; }
+
+ // Return a pointer to the plugin manager.
+ Plugin_manager*
+ plugins() const
+ { return this->plugins_; }
+
+ // True iff SYMBOL was found in the file specified by dynamic-list.
+ bool
+ in_dynamic_list(const char* symbol) const
+ { return this->dynamic_list_.version_script_info()->symbol_is_local(symbol); }
+
+ // True if a --dynamic-list script was provided.
+ bool
+ have_dynamic_list() const
+ { return this->have_dynamic_list_; }
+
+ // Finalize the dynamic list.
+ void
+ finalize_dynamic_list()
+ { this->dynamic_list_.version_script_info()->finalize(); }
+
+ // The mode selected by the --incremental options.
+ enum Incremental_mode
+ {
+ // No incremental linking (--no-incremental).
+ INCREMENTAL_OFF,
+ // Incremental update only (--incremental-update).
+ INCREMENTAL_UPDATE,
+ // Force a full link, but prepare for subsequent incremental link
+ // (--incremental-full).
+ INCREMENTAL_FULL,
+ // Incremental update if possible, fallback to full link (--incremental).
+ INCREMENTAL_AUTO
+ };
+
+ // The incremental linking mode.
+ Incremental_mode
+ incremental_mode() const
+ { return this->incremental_mode_; }
+
+ // The disposition given by the --incremental-changed,
+ // --incremental-unchanged or --incremental-unknown option. The
+ // value may change as we proceed parsing the command line flags.
+ Incremental_disposition
+ incremental_disposition() const
+ { return this->incremental_disposition_; }
+
+ void
+ set_incremental_disposition(Incremental_disposition disp)
+ { this->incremental_disposition_ = disp; }
+
+ // The disposition to use for startup files (those that precede the
+ // first --incremental-changed, etc. option).
+ Incremental_disposition
+ incremental_startup_disposition() const
+ { return this->incremental_startup_disposition_; }
+
+ // Return true if S is the name of a library excluded from automatic
+ // symbol export.
+ bool
+ check_excluded_libs(const std::string &s) const;
+
+ // If an explicit start address was given for section SECNAME with
+ // the --section-start option, return true and set *PADDR to the
+ // address. Otherwise return false.
+ bool
+ section_start(const char* secname, uint64_t* paddr) const;
+
+ // Return whether any --section-start option was used.
+ bool
+ any_section_start() const
+ { return !this->section_starts_.empty(); }
+
+ enum Fix_v4bx
+ {
+ // Leave original instruction.
+ FIX_V4BX_NONE,
+ // Replace instruction.
+ FIX_V4BX_REPLACE,
+ // Generate an interworking veneer.
+ FIX_V4BX_INTERWORKING
+ };
+
+ Fix_v4bx
+ fix_v4bx() const
+ { return (this->fix_v4bx_); }
+
+ enum Endianness
+ {
+ ENDIANNESS_NOT_SET,
+ ENDIANNESS_BIG,
+ ENDIANNESS_LITTLE
+ };
+
+ Endianness
+ endianness() const
+ { return this->endianness_; }
+
+ bool
+ discard_all() const
+ { return this->discard_locals_ == DISCARD_ALL; }
+
+ bool
+ discard_locals() const
+ { return this->discard_locals_ == DISCARD_LOCALS; }
+
+ bool
+ discard_sec_merge() const
+ { return this->discard_locals_ == DISCARD_SEC_MERGE; }
+
+ enum Orphan_handling
+ {
+ // Place orphan sections normally (default).
+ ORPHAN_PLACE,
+ // Discard all orphan sections.
+ ORPHAN_DISCARD,
+ // Warn when placing orphan sections.
+ ORPHAN_WARN,
+ // Issue error for orphan sections.
+ ORPHAN_ERROR
+ };
+
+ Orphan_handling
+ orphan_handling_enum() const
+ { return this->orphan_handling_enum_; }
+
private:
// Don't copy this structure.
General_options(const General_options&);
General_options& operator=(const General_options&);
+ // What local symbols to discard.
+ enum Discard_locals
+ {
+ // Locals in merge sections (default).
+ DISCARD_SEC_MERGE,
+ // None (--discard-none).
+ DISCARD_NONE,
+ // Temporary locals (--discard-locals/-X).
+ DISCARD_LOCALS,
+ // All locals (--discard-all/-x).
+ DISCARD_ALL
+ };
+
// Whether to mark the stack as executable.
enum Execstack
{
EXECSTACK_NO
};
- Execstack execstack_status_;
+ enum Icf_status
+ {
+ // Do not fold any functions (Default or --icf=none).
+ ICF_NONE,
+ // All functions are candidates for folding. (--icf=all).
+ ICF_ALL,
+ // Only ctors and dtors are candidates for folding. (--icf=safe).
+ ICF_SAFE
+ };
+
+ void
+ set_icf_status(Icf_status value)
+ { this->icf_status_ = value; }
+
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; }
+ void
+ set_orphan_handling_enum(Orphan_handling value)
+ { this->orphan_handling_enum_ = value; }
+
// These are called by finalize() to set up the search-path correctly.
void
- add_to_library_path_with_sysroot(const char* arg)
+ add_to_library_path_with_sysroot(const std::string& arg)
{ this->add_search_directory_to_library_path(Search_directory(arg, true)); }
// Apply any sysroot to the directory lists.
void
add_sysroot();
+
+ // Add a plugin and its arguments to the list of plugins.
+ void
+ add_plugin(const char* filename);
+
+ // Add a plugin option.
+ void
+ add_plugin_option(const char* opt);
+
+ void
+ copy_from_posdep_options(const Position_dependent_options&);
+
+ // Whether we printed version information.
+ bool printed_version_;
+ // Whether to mark the stack as executable.
+ Execstack execstack_status_;
+ // Whether to do code folding.
+ Icf_status icf_status_;
+ // Whether to do a static link.
+ bool static_;
+ // Whether to do demangling.
+ bool do_demangle_;
+ // List of plugin libraries.
+ Plugin_manager* plugins_;
+ // The parsed output of --dynamic-list files. For convenience in
+ // script.cc, we store this as a Script_options object, even though
+ // we only use a single Version_tree from it.
+ Script_options dynamic_list_;
+ // Whether a --dynamic-list file was provided.
+ bool have_dynamic_list_;
+ // The incremental linking mode.
+ Incremental_mode incremental_mode_;
+ // The disposition given by the --incremental-changed,
+ // --incremental-unchanged or --incremental-unknown option. The
+ // value may change as we proceed parsing the command line flags.
+ Incremental_disposition incremental_disposition_;
+ // The disposition to use for startup files (those marked
+ // INCREMENTAL_STARTUP).
+ Incremental_disposition incremental_startup_disposition_;
+ // Whether we have seen one of the options that require incremental
+ // build (--incremental-changed, --incremental-unchanged,
+ // --incremental-unknown, or --incremental-startup-unchanged).
+ bool implicit_incremental_;
+ // Libraries excluded from automatic export, via --exclude-libs.
+ Unordered_set<std::string> excluded_libs_;
+ // List of symbol-names to keep, via -retain-symbol-info.
+ Unordered_set<std::string> symbols_to_retain_;
+ // Map from section name to address from --section-start.
+ std::map<std::string, uint64_t> section_starts_;
+ // Whether to process armv4 bx instruction relocation.
+ Fix_v4bx fix_v4bx_;
+ // Endianness.
+ Endianness endianness_;
+ // What local symbols to discard.
+ Discard_locals discard_locals_;
+ // Stack of saved options for --push-state/--pop-state.
+ std::vector<Position_dependent_options*> options_stack_;
+ // Orphan handling option, decoded to an enum value.
+ Orphan_handling orphan_handling_enum_;
};
// The position-dependent options. We use this to store the state of
type__ \
varname__() const \
{ return this->varname__##_; } \
- \
+ \
void \
set_##varname__(type__ value) \
{ this->varname__##_ = value; } \
{
public:
Position_dependent_options(const General_options& options
- = Position_dependent_options::default_options_)
+ = Position_dependent_options::default_options_)
{ copy_from_options(options); }
- void copy_from_options(const General_options& options)
+ void
+ copy_from_options(const General_options& options)
{
this->set_as_needed(options.as_needed());
this->set_Bdynamic(options.Bdynamic());
this->set_format_enum(options.format_enum());
this->set_whole_archive(options.whole_archive());
+ this->set_incremental_disposition(options.incremental_disposition());
}
DEFINE_posdep(as_needed, bool);
DEFINE_posdep(Bdynamic, bool);
DEFINE_posdep(format_enum, General_options::Object_format);
DEFINE_posdep(whole_archive, bool);
+ DEFINE_posdep(incremental_disposition, Incremental_disposition);
private:
// This is a General_options with everything set to its default
class Input_file_argument
{
public:
+ enum Input_file_type
+ {
+ // A regular file, name used as-is, not searched.
+ INPUT_FILE_TYPE_FILE,
+ // A library name. When used, "lib" will be prepended and ".so" or
+ // ".a" appended to make a filename, and that filename will be searched
+ // for using the -L paths.
+ INPUT_FILE_TYPE_LIBRARY,
+ // A regular file, name used as-is, but searched using the -L paths.
+ INPUT_FILE_TYPE_SEARCHED_FILE
+ };
+
// name: file name or library name
- // is_lib: true if name is a library name: that is, emits the leading
- // "lib" and trailing ".so"/".a" from the name
+ // type: the type of this input file.
// extra_search_path: an extra directory to look for the file, prior
// to checking the normal library search path. If this is "",
// then no extra directory is added.
// options: The position dependent options at this point in the
// command line, such as --whole-archive.
Input_file_argument()
- : name_(), is_lib_(false), extra_search_path_(""), just_symbols_(false),
- options_()
+ : name_(), type_(INPUT_FILE_TYPE_FILE), extra_search_path_(""),
+ just_symbols_(false), options_(), arg_serial_(0)
{ }
- Input_file_argument(const char* name, bool is_lib,
- const char* extra_search_path,
- bool just_symbols,
- const Position_dependent_options& options)
- : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path),
- just_symbols_(just_symbols), options_(options)
+ Input_file_argument(const char* name, Input_file_type type,
+ const char* extra_search_path,
+ bool just_symbols,
+ const Position_dependent_options& options)
+ : name_(name), type_(type), extra_search_path_(extra_search_path),
+ just_symbols_(just_symbols), options_(options), arg_serial_(0)
{ }
// You can also pass in a General_options instance instead of a
// Position_dependent_options. In that case, we extract the
// position-independent vars from the General_options and only store
// those.
- Input_file_argument(const char* name, bool is_lib,
- const char* extra_search_path,
- bool just_symbols,
- const General_options& options)
- : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path),
- just_symbols_(just_symbols), options_(options)
+ Input_file_argument(const char* name, Input_file_type type,
+ const char* extra_search_path,
+ bool just_symbols,
+ const General_options& options)
+ : name_(name), type_(type), extra_search_path_(extra_search_path),
+ just_symbols_(just_symbols), options_(options), arg_serial_(0)
{ }
const char*
bool
is_lib() const
- { return this->is_lib_; }
+ { return type_ == INPUT_FILE_TYPE_LIBRARY; }
+
+ bool
+ is_searched_file() const
+ { return type_ == INPUT_FILE_TYPE_SEARCHED_FILE; }
const char*
extra_search_path() const
{
return (this->extra_search_path_.empty()
- ? NULL
- : this->extra_search_path_.c_str());
+ ? NULL
+ : this->extra_search_path_.c_str());
}
// Return whether we should only read symbols from this file.
// options.
bool
may_need_search() const
- { return this->is_lib_ || !this->extra_search_path_.empty(); }
+ {
+ return (this->is_lib()
+ || this->is_searched_file()
+ || !this->extra_search_path_.empty());
+ }
+
+ // Set the serial number for this argument.
+ void
+ set_arg_serial(unsigned int arg_serial)
+ { this->arg_serial_ = arg_serial; }
+
+ // Get the serial number.
+ unsigned int
+ arg_serial() const
+ { return this->arg_serial_; }
private:
// We use std::string, not const char*, here for convenience when
// using script files, so that we do not have to preserve the string
// in that case.
std::string name_;
- bool is_lib_;
+ Input_file_type type_;
std::string extra_search_path_;
bool just_symbols_;
Position_dependent_options options_;
+ // A unique index for this file argument in the argument list.
+ unsigned int arg_serial_;
};
// A file or library, or a group, from the command line.
public:
// Create a file or library argument.
explicit Input_argument(Input_file_argument file)
- : is_file_(true), file_(file), group_(NULL)
+ : is_file_(true), file_(file), group_(NULL), lib_(NULL), script_info_(NULL)
{ }
// Create a group argument.
explicit Input_argument(Input_file_group* group)
- : is_file_(false), group_(group)
+ : is_file_(false), group_(group), lib_(NULL), script_info_(NULL)
+ { }
+
+ // Create a lib argument.
+ explicit Input_argument(Input_file_lib* lib)
+ : is_file_(false), group_(NULL), lib_(lib), script_info_(NULL)
{ }
// Return whether this is a file.
// Return whether this is a group.
bool
is_group() const
- { return !this->is_file_; }
+ { return !this->is_file_ && this->lib_ == NULL; }
+
+ // Return whether this is a lib.
+ bool
+ is_lib() const
+ { return this->lib_ != NULL; }
// Return the information about the file.
const Input_file_argument&
return this->group_;
}
+ // Return the information about the lib.
+ const Input_file_lib*
+ lib() const
+ {
+ gold_assert(!this->is_file_);
+ gold_assert(this->lib_);
+ return this->lib_;
+ }
+
+ Input_file_lib*
+ lib()
+ {
+ gold_assert(!this->is_file_);
+ gold_assert(this->lib_);
+ return this->lib_;
+ }
+
+ // If a script generated this argument, store a pointer to the script info.
+ // Currently used only for recording incremental link information.
+ void
+ set_script_info(Script_info* info)
+ { this->script_info_ = info; }
+
+ Script_info*
+ script_info() const
+ { return this->script_info_; }
+
private:
bool is_file_;
Input_file_argument file_;
Input_file_group* group_;
+ Input_file_lib* lib_;
+ Script_info* script_info_;
};
+typedef std::vector<Input_argument> Input_argument_list;
+
// A group from the command line. This is a set of arguments within
// --start-group ... --end-group.
class Input_file_group
{
public:
- typedef std::vector<Input_argument> Files;
- typedef Files::const_iterator const_iterator;
+ typedef Input_argument_list::const_iterator const_iterator;
Input_file_group()
: files_()
{ }
// Add a file to the end of the group.
- void
+ Input_argument&
add_file(const Input_file_argument& arg)
- { this->files_.push_back(Input_argument(arg)); }
+ {
+ this->files_.push_back(Input_argument(arg));
+ return this->files_.back();
+ }
// Iterators to iterate over the group contents.
{ return this->files_.end(); }
private:
- Files files_;
+ Input_argument_list files_;
+};
+
+// A lib from the command line. This is a set of arguments within
+// --start-lib ... --end-lib.
+
+class Input_file_lib
+{
+ public:
+ typedef Input_argument_list::const_iterator const_iterator;
+
+ Input_file_lib(const Position_dependent_options& options)
+ : files_(), options_(options)
+ { }
+
+ // Add a file to the end of the lib.
+ Input_argument&
+ add_file(const Input_file_argument& arg)
+ {
+ this->files_.push_back(Input_argument(arg));
+ return this->files_.back();
+ }
+
+ const Position_dependent_options&
+ options() const
+ { return this->options_; }
+
+ // Iterators to iterate over the lib contents.
+
+ const_iterator
+ begin() const
+ { return this->files_.begin(); }
+
+ const_iterator
+ end() const
+ { return this->files_.end(); }
+
+ size_t
+ size() const
+ { return this->files_.size(); }
+
+ private:
+ Input_argument_list files_;
+ Position_dependent_options options_;
};
// A list of files from the command line or a script.
class Input_arguments
{
public:
- typedef std::vector<Input_argument> Input_argument_list;
typedef Input_argument_list::const_iterator const_iterator;
Input_arguments()
- : input_argument_list_(), in_group_(false)
+ : input_argument_list_(), in_group_(false), in_lib_(false), file_count_(0)
{ }
// Add a file.
- void
- add_file(const Input_file_argument& arg);
+ Input_argument&
+ add_file(Input_file_argument& arg);
// Start a group (the --start-group option).
void
void
end_group();
+ // Start a lib (the --start-lib option).
+ void
+ start_lib(const Position_dependent_options&);
+
+ // End a lib (the --end-lib option).
+ void
+ end_lib();
+
// Return whether we are currently in a group.
bool
in_group() const
{ return this->in_group_; }
+ // Return whether we are currently in a lib.
+ bool
+ in_lib() const
+ { return this->in_lib_; }
+
// The number of entries in the list.
int
size() const
empty() const
{ return this->input_argument_list_.empty(); }
+ // Return the number of input files. This may be larger than
+ // input_argument_list_.size(), because of files that are part
+ // of groups or libs.
+ int
+ number_of_input_files() const
+ { return this->file_count_; }
+
private:
Input_argument_list input_argument_list_;
bool in_group_;
+ bool in_lib_;
+ unsigned int file_count_;
};
// is set to true if argv[i] is "--".
int
process_one_option(int argc, const char** argv, int i,
- bool* no_more_options);
+ bool* no_more_options);
// Get the general options.
const General_options&
script_options()
{ return this->script_options_; }
- // Get the version-script options: a convenience routine.
+ // Finalize the version-script options and return them.
const Version_script_info&
- version_script() const
- { return *this->script_options_.version_script_info(); }
+ version_script();
// Get the input files.
Input_arguments&
// The number of input files.
int
number_of_input_files() const
- { return this->inputs_.size(); }
+ { return this->inputs_.number_of_input_files(); }
// Iterators to iterate over the list of input files.
Command_line(const Command_line&);
Command_line& operator=(const Command_line&);
+ // This is a dummy class to provide a constructor that runs before
+ // the constructor for the General_options. The Pre_options constructor
+ // is used as a hook to set the flag enabling the options to register
+ // themselves.
+ struct Pre_options {
+ Pre_options();
+ };
+
+ // This must come before options_!
+ Pre_options pre_options_;
General_options options_;
Position_dependent_options position_options_;
Script_options script_options_;
projects / deliverable / binutils-gdb.git / blobdiff