// options.h -- handle command line options for gold -*- C++ -*-
-// Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
+// Copyright 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
#include <cstdlib>
#include <cstring>
#include <list>
+#include <map>
#include <string>
#include <vector>
class Input_file_group;
class Position_dependent_options;
class Target;
+class Plugin_manager;
+
+// Incremental build action for a specific file, as selected by the user.
+
+enum Incremental_disposition
+{
+ // 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
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
}; \
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)
+
#define DEFINE_uint(varname__, dashes__, shortname__, default_value__, \
helpstring__, helparg__) \
DEFINE_var(varname__, dashes__, shortname__, default_value__, \
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_;
};
// alphabetical order). For both, lowercase sorts before uppercase.
// The -z options come last.
+ 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"));
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_("Only set DT_NEEDED for shared libraries if used"),
+ N_("Always DT_NEEDED for shared libraries"));
+
+ DEFINE_enum(assert, options::ONE_DASH, '\0', NULL,
+ N_("Ignored"), N_("[ignored]"),
+ {"definitions", "nodefinitions", "nosymbolic", "pure-text"});
// 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
N_("Generate build ID note"),
N_("[=STYLE]"));
+ DEFINE_bool(check_sections, options::TWO_DASHES, '\0', true,
+ N_("Check segment addresses for overlaps (default)"),
+ 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"});
#endif
+ 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(define_common, options::TWO_DASHES, 'd', false,
N_("Define common symbols"),
N_("Do not define common symbols"));
N_("Try to detect violations of the One Definition Rule"),
NULL);
+ 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);
+
+ 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"));
+
DEFINE_string(entry, options::TWO_DASHES, 'e', NULL,
N_("Set program start address"), N_("ADDRESS"));
+ 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 (default)"));
DEFINE_bool(eh_frame_hdr, options::TWO_DASHES, '\0', false,
N_("Create exception frame header"), NULL);
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(g, options::EXACTLY_ONE_DASH, '\0', false,
+ N_("Ignored"), NULL);
+
DEFINE_string(soname, options::ONE_DASH, 'h', NULL,
N_("Set shared library name"), N_("FILENAME"));
+ DEFINE_bool(i, options::EXACTLY_ONE_DASH, '\0', false,
+ N_("Ignored"), NULL);
+
DEFINE_double(hash_bucket_empty_fraction, options::TWO_DASHES, '\0', 0.0,
N_("Min fraction of empty buckets in dynamic hash"),
N_("FRACTION"));
DEFINE_string(dynamic_linker, options::TWO_DASHES, 'I', NULL,
N_("Set dynamic linker path"), N_("PROGRAM"));
+ DEFINE_bool(incremental, options::TWO_DASHES, '\0', false,
+ N_("Work in progress; do not use"),
+ N_("Do a full build"));
+
+ 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_string(init, options::ONE_DASH, '\0', "_init",
+ N_("Call SYMBOL at load-time"), N_("SYMBOL"));
+
DEFINE_special(just_symbols, options::TWO_DASHES, '\0',
N_("Read only symbol values from FILE"), N_("FILE"));
+ DEFINE_bool(keep_files_mapped, 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_special(library, options::TWO_DASHES, 'l',
N_("Search for library LIBNAME"), N_("LIBNAME"));
DEFINE_string(Map, options::ONE_DASH, '\0', NULL, N_("Write map file"),
N_("MAPFILENAME"));
+ 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_string(oformat, options::EXACTLY_TWO_DASHES, '\0', "elf",
N_("Set output format"), N_("[binary]"));
+ DEFINE_bool(pie, options::ONE_DASH, '\0', false,
+ N_("Create a position independent executable"), NULL);
+ DEFINE_bool_alias(pic_executable, pie, options::TWO_DASHES, '\0',
+ N_("Create a position independent executable"), NULL,
+ false);
+
+#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"));
+#endif
+
+ DEFINE_bool(preread_archive_symbols, options::TWO_DASHES, '\0', false,
+ N_("Preread archive symbols when multi-threaded"), NULL);
+
+ DEFINE_string(print_symbol_counts, options::TWO_DASHES, '\0', NULL,
+ N_("Print symbols defined and used for each input"),
+ N_("FILENAME"));
+
DEFINE_bool(Qy, options::EXACTLY_ONE_DASH, '\0', false,
N_("Ignored for SVR4 compatibility"), NULL);
DEFINE_bool(relax, options::TWO_DASHES, '\0', false,
N_("Relax branches on certain targets"), NULL);
+ DEFINE_string(retain_symbols_file, options::TWO_DASHES, '\0', NULL,
+ N_("keep only symbols listed in this file"), N_("FILE"));
+
// -R really means -rpath, but can mean --just-symbols for
// compatibility with GNU ld. -rpath is always -rpath, so we list
// it separately.
N_("Add DIR to link time shared library search path"),
N_("DIR"));
+ DEFINE_special(section_start, options::TWO_DASHES, '\0',
+ N_("Set address of section"), N_("SECTION=ADDRESS"));
+
+ DEFINE_optional_string(sort_common, options::TWO_DASHES, '\0', NULL,
+ N_("Sort common symbols by alignment"),
+ N_("[={ascending,descending}]"));
+
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_("SIZE"));
- DEFINE_bool(shared, options::ONE_DASH, '\0', false,
+ 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_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);
+ DEFINE_enum(icf, options::TWO_DASHES, '\0', "none",
+ N_("Identical Code Folding. "
+ "\'--icf=safe\' folds only ctors and dtors."),
+ ("[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"));
+
+ 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_bool(stats, options::TWO_DASHES, '\0', false,
N_("Print resource usage statistics"), NULL);
DEFINE_special(version_script, options::TWO_DASHES, '\0',
N_("Read version script"), N_("FILE"));
+ DEFINE_bool(warn_common, options::TWO_DASHES, '\0', false,
+ N_("Warn about duplicate common symbols"),
+ N_("Do not warn about duplicate common symbols (default)"));
+
+ DEFINE_bool(warn_constructors, options::TWO_DASHES, '\0', false,
+ N_("Ignored"), N_("Ignored"));
+
+ 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 (default)"));
+
DEFINE_bool(whole_archive, options::TWO_DASHES, '\0', false,
N_("Include all archive contents"),
N_("Include only needed archive contents"));
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 (default)"),
+ 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"));
NULL);
DEFINE_bool(execstack, options::DASH_Z, '\0', false,
N_("Mark output as requiring executable stack"), NULL);
- DEFINE_uint64(max_page_size, options::DASH_Z, '\0', 0,
- N_("Set maximum page size to SIZE"), N_("SIZE"));
- DEFINE_bool(noexecstack, options::DASH_Z, '\0', false,
- N_("Mark output as not requiring executable stack"), NULL);
DEFINE_bool(initfirst, options::DASH_Z, '\0', false,
N_("Mark DSO to be initialized first at runtime"),
NULL);
DEFINE_bool(interpose, options::DASH_Z, '\0', false,
N_("Mark object to interpose all DSOs but executable"),
NULL);
+ DEFINE_bool(lazy, options::DASH_Z, '\0', false,
+ N_("Mark object for lazy runtime binding (default)"),
+ NULL);
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"));
+ 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(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);
+ 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,
N_("Where possible mark variables read-only after relocation"),
N_("Don't mark variables read-only after relocation"));
// 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);
+
// 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.
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); }
+
+ // Finalize the dynamic list.
+ void
+ finalize_dynamic_list()
+ { this->dynamic_list_.version_script_info()->finalize(); }
+
+ // 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_; }
+
+ // 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;
+
private:
// Don't copy this structure.
General_options(const General_options&);
EXECSTACK_NO
};
+ 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)
{ this->execstack_status_ = value; }
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);
+
+ // 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_;
+ // 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_;
+ // Whether we have seen one of the options that require incremental
+ // build (--incremental-changed, --incremental-unchanged or
+ // --incremental-unknown)
+ 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_;
};
// The position-dependent options. We use this to store the state of
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_()
{ }
- Input_file_argument(const char* name, bool is_lib,
+ 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), is_lib_(is_lib), extra_search_path_(extra_search_path),
+ : name_(name), type_(type), extra_search_path_(extra_search_path),
just_symbols_(just_symbols), options_(options)
{ }
// 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,
+ Input_file_argument(const char* name, Input_file_type type,
const char* extra_search_path,
bool just_symbols,
const General_options& options)
- : name_(name), is_lib_(is_lib), extra_search_path_(extra_search_path),
+ : name_(name), type_(type), extra_search_path_(extra_search_path),
just_symbols_(just_symbols), options_(options)
{ }
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
// 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());
+ }
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_;
Input_file_group* group_;
};
+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_()
{ return this->files_.end(); }
private:
- Files files_;
+ Input_argument_list files_;
};
// 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()
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&
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_;
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