// options.h -- handle command line options for gold -*- C++ -*-
-// Copyright 2006, 2007, 2008, 2009, 2010, 2011 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.
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.
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_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;
// --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* 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, bool oa, 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), optional_arg(oa), 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
// 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, false, 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;
// 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__, \
- optional_arg__, 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 \
{ 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__, optional_arg__, 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; \
// 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, \
- false, 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((dashes__ == options::DASH_Z \
? "no" #varname__ \
: "no-" #varname__), \
dashes__, '\0', \
- default_value__ ? "false" : "true", \
- no_helpstring__, NULL, false, this) \
+ "false", \
+ no_helpstring__, NULL, false, this, \
+ false) \
{ } \
- \
+ \
void \
parse_to_value(const char*, const char*, \
- Command_line*, General_options* options) \
+ 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__) \
+ 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__ ? "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) \
+ 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) \
+ 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__) \
+ helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- #default_value__, helpstring__, helparg__, false, \
- int, int, options::parse_int)
+ #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__, false, \
- 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__, false, \
- 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__, false, \
- double, double, options::parse_double)
+ 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__, false, \
- 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__, false, 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); } \
// This is like DEFINE_string, but we store a set of strings.
#define DEFINE_set(varname__, dashes__, shortname__, \
- helpstring__, helparg__) \
+ helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, , \
- "", helpstring__, helparg__, false, options::String_set, \
- const options::String_set&, options::parse_set) \
+ "", helpstring__, helparg__, false, options::String_set, \
+ const options::String_set&, options::parse_set, false) \
public: \
bool \
any_##varname__() const \
is_##varname__(const char* symbol) const \
{ \
return (!this->varname__##_.value.empty() \
- && (this->varname__##_.value.find(std::string(symbol)) \
- != this->varname__##_.value.end())); \
+ && (this->varname__##_.value.find(std::string(symbol)) \
+ != this->varname__##_.value.end())); \
} \
\
options::String_set::const_iterator \
\
options::String_set::const_iterator \
varname__##_end() const \
- { return this->varname__##_.value.end(); }
+ { 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__, false, \
- 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
{ \
Struct_##option__() \
: option(#option__, dashes__, shortname__, "", helpstring__, \
- NULL, false, this) \
+ NULL, false, this, \
+ General_options::varname__##is_default ^ invert__) \
{ } \
\
void \
? "no" #option__ \
: "no-" #option__), \
dashes__, '\0', "", no_helpstring__, \
- NULL, false, this) \
+ NULL, false, this, \
+ !General_options::varname__##is_default ^ invert__) \
{ } \
\
void \
}; \
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_
default_value__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
- default_value__, helpstring__, helparg__, true, \
- const char*, const char*, options::parse_optional_string)
+ 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())
// 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);
+ 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"),
+ '\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 shared libraries if used"),
- N_("Always DT_NEEDED for shared libraries"));
+ 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);
+ 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(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);
- DEFINE_optional_string(build_id, options::TWO_DASHES, '\0', "sha1",
- N_("Generate build ID note"),
- N_("[=STYLE]"));
+ // c
DEFINE_bool(check_sections, options::TWO_DASHES, '\0', true,
- N_("Check segment addresses for overlaps (default)"),
+ 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 output cross reference table"));
DEFINE_bool(ctors_in_init_array, options::TWO_DASHES, '\0', true,
- N_("Use DT_INIT_ARRAY for all constructors (default)"),
+ 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_("[all,files,script,task][,...]"));
+ 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_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_("Look for violations of the C++ One Definition Rule"),
+ N_("Look for violations of the C++ One Definition Rule"),
N_("Do not look for violations of the C++ One Definition Rule"));
- DEFINE_bool(discard_all, options::TWO_DASHES, 'x', false,
- N_("Delete all local symbols"), NULL);
- DEFINE_bool(discard_locals, options::TWO_DASHES, 'X', false,
- N_("Delete all temporary local symbols"), NULL);
-
DEFINE_bool(dynamic_list_data, options::TWO_DASHES, '\0', false,
- N_("Add data symbols to dynamic symbols"), NULL);
+ 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);
+ 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);
+ 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"));
+ 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"),
- N_("Do not export all dynamic symbols (default)"));
+ N_("Export all dynamic symbols"),
+ N_("Do not export all dynamic symbols"));
+
+ 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_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false,
- N_("Create exception frame header"), NULL);
-
DEFINE_special(EL, options::ONE_DASH, '\0',
N_("Link little-endian objects."), NULL);
- DEFINE_bool(enum_size_warning, options::TWO_DASHES, '\0', true, NULL,
- N_("(ARM only) Do not warn about objects with incompatible "
- "enum sizes"));
+ // 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"));
+ 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."));
+ N_("(ARM only) Fix binaries for Cortex-A8 erratum"),
+ N_("(ARM only) Do not fix binaries for Cortex-A8 erratum"));
- 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(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);
+ 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);
+ 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"});
- DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL,
- N_("Set dynamic linker path"), N_("PROGRAM"));
+ // 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; "
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"));
+ 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);
+ N_("Assume files changed"), NULL);
DEFINE_special(incremental_unchanged, options::TWO_DASHES, '\0',
- N_("Assume files didn't change"), NULL);
+ N_("Assume files didn't change"), NULL);
DEFINE_special(incremental_unknown, options::TWO_DASHES, '\0',
- N_("Use timestamps to check files (default)"), NULL);
+ 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"));
+ N_("Call SYMBOL at load-time"), N_("SYMBOL"));
+
+ DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL,
+ 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(map_whole_files, options::TWO_DASHES, '\0',
- sizeof(void*) >= 8,
- N_("Map whole files to memory (default on 64-bit hosts)"),
- N_("Map relevant file parts to memory (default on 32-bit "
- "hosts)"));
DEFINE_bool(keep_files_mapped, options::TWO_DASHES, '\0', true,
- N_("Keep files mapped across passes (default)"),
- N_("Release mapped files after each pass"));
+ N_("Keep files mapped across passes"),
+ N_("Release mapped files after each pass"));
- DEFINE_bool(ld_generated_unwind_info, options::TWO_DASHES, '\0', true,
- N_("Generate unwind information for PLT (default)"),
- N_("Do not generate unwind information for PLT"));
+ 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(nostdlib, options::ONE_DASH, '\0', false,
- N_(" Only search directories specified on the command line."),
- NULL);
+ 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"));
- DEFINE_bool(rosegment, options::TWO_DASHES, '\0', false,
- N_(" Put read-only non-executable sections in their own segment"),
- NULL);
+ // m
DEFINE_string(m, options::EXACTLY_ONE_DASH, 'm', "",
- N_("Set GNU linker emulation; obsolete"), N_("EMULATION"));
+ N_("Set GNU linker emulation; obsolete"), N_("EMULATION"));
+
+ 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_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_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(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_string(output, options::TWO_DASHES, 'o', "a.out",
- N_("Set output file name"), N_("FILE"));
+ DEFINE_bool(noinhibit_exec, options::TWO_DASHES, '\0', false,
+ N_("Create an output file even if errors occur"), NULL);
- DEFINE_uint(optimize, options::EXACTLY_ONE_DASH, 'O', 0,
- N_("Optimize output file size"), N_("LEVEL"));
+ 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_bool(p, options::ONE_DASH, '\0', false,
- N_("(ARM only) Ignore for backward compatibility"), NULL);
+ 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"), NULL);
+ 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"), NULL,
+ 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"));
+ 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"), N_("OPTION"));
+ 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);
+ 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);
+
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);
+ // r
DEFINE_bool(relocatable, options::EXACTLY_ONE_DASH, 'r', false,
- N_("Generate relocatable output"), NULL);
- DEFINE_bool_alias(i, relocatable, options::EXACTLY_ONE_DASH, '\0',
- N_("Synonym for -r"), NULL, false);
+ N_("Generate relocatable output"), NULL);
DEFINE_bool(relax, options::TWO_DASHES, '\0', false,
- N_("Relax branches on certain targets"), NULL);
+ 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"));
+ 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"),
+ N_("Do not put read-only non-executable sections in their own segment"));
+
+ 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);
+ 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 <= 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_("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_bool(strip_all, options::TWO_DASHES, 's', false,
- 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_bool(strip_lto_sections, options::TWO_DASHES, '\0', true,
- N_("Strip LTO intermediate code sections"), NULL);
-
DEFINE_int(stub_group_size, options::TWO_DASHES , '\0', 1,
- N_("(ARM 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 using default size.\n"),
+ 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(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(shared, options::ONE_DASH, 'G', false,
- N_("Generate shared library"), NULL);
-
- DEFINE_bool(Bshareable, options::ONE_DASH, '\0', false,
- N_("Generate shared library"), NULL);
+ 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"),
// 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);
-
- 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 2)"), N_("COUNT"));
+ N_("Do not link against shared libraries"), NULL);
- 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_set(keep_unique, options::TWO_DASHES, '\0',
- N_("Do not fold this symbol during ICF"), N_("SYMBOL"));
-
- DEFINE_bool(gc_sections, options::TWO_DASHES, '\0', false,
- N_("Remove unused sections"),
- N_("Don't remove unused sections (default)"));
-
- 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_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"));
+
+ // t
DEFINE_bool(trace, options::TWO_DASHES, 't', false,
- N_("Print the name of each input file"), NULL);
+ N_("Print the name of each input file"), NULL);
- DEFINE_special(script, options::TWO_DASHES, 'T',
- N_("Read linker script"), N_("FILE"));
+ 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_("Synonym for --debug=files"), NULL);
+ 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 (default)"));
+ N_("Do not warn about duplicate common symbols"));
+
+ DEFINE_bool_ignore(warn_constructors, options::TWO_DASHES, '\0',
+ N_("Ignored"), N_("Ignored"));
- DEFINE_bool(warn_constructors, options::TWO_DASHES, '\0', false,
- 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 (default)"));
+ 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_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 (default)"));
+ 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"),
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"));
+ N_("Trace references to symbol"), N_("SYMBOL"));
DEFINE_bool(undefined_version, options::TWO_DASHES, '\0', true,
- N_("Allow unused version in script (default)"),
+ 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);
-
-
- 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);
+ N_("End a library search group"), NULL);
// The -z options.
+ 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);
+ 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);
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 (default)"),
+ 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);
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', false,
+ "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 (default)"));
+ N_("Permit relocations in read-only segments"));
DEFINE_bool_alias(textoff, text, options::DASH_Z, '\0',
- N_("Permit relocations in read-only segments (default)"),
+ 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;
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;
should_retain_symbol(const char* symbol_name) const
{
if (symbols_to_retain_.empty()) // means flag wasn't specified
- return true;
+ return true;
return symbols_to_retain_.find(symbol_name) != symbols_to_retain_.end();
}
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()
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
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.
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
{
// Do not fold any functions (Default or --icf=none).
ICF_NONE,
// All functions are candidates for folding. (--icf=all).
- ICF_ALL,
+ ICF_ALL,
// Only ctors and dtors are candidates for folding. (--icf=safe).
ICF_SAFE
};
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_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.
// 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 or
- // --incremental-unknown)
+ // 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_;
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());
{ }
Input_file_argument(const char* name, Input_file_type type,
- const char* extra_search_path,
- bool just_symbols,
- const Position_dependent_options& options)
+ 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)
{ }
// position-independent vars from the General_options and only store
// those.
Input_file_argument(const char* name, Input_file_type type,
- const char* extra_search_path,
- bool just_symbols,
- const General_options& options)
+ 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)
{ }
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.
// 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&
projects / deliverable / binutils-gdb.git / blobdiff